Updated on 2024/03/21

写真a

 
WATANABE, Takeshi
 
Organization
Graduate School of Bioagricultural Sciences Department of Applied Biosciences Associate professor
Graduate School
Graduate School of Bioagricultural Sciences
Undergraduate School
School of Agricultural Sciences Department of Applied Biosciences
Title
Associate professor
Contact information
メールアドレス
External link

Degree 1

  1. Ph. D of Agriculture ( 2008.3   Nagoya University ) 

Research Interests 1

  1. Soil Microbiology

Research Areas 1

  1. Others / Others  / Plant Nutrient Science/Soil Studies

Current Research Project and SDGs 3

  1. 水田土壌の鉄酸化菌・還元菌に関する研究

  2. 水田土壌のメタン生成過程に関与する微生物の生態に関する研究

  3. 水田土壌中のメタン生成古細菌の生態解明に関する研究

Research History 4

  1. Nagoya University   Graduate School of Bioagricultural Sciences Department of Applied Biosciences   Associate professor

    2023.2

  2. Nagoya University   Lecturer

    2016.4 - 2023.1

  3. Nagoya University   Assistant Professor

    2009.4 - 2016.3

  4. 日本学術振興会特別研究員   特別研究員

    2007.4 - 2009.3

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    Country:Japan

Education 1

  1. Nagoya University   Graduate School of Bioagricultural Sciences   Department of Biological Mechanisms and Functions

    2005.4 - 2008.3

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    Country: Japan

Professional Memberships 5

  1. 日本土壌肥料学会

  2. 日本農芸化学会

  3. 日本土壌微生物学会

  4. 日本微生物生態学会

  5. 日本Archaea研究会

Committee Memberships 10

  1. (公社)日本農芸化学会   中部支部会計幹事  

    2022.4 - 2024.3   

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    Committee type:Academic society

  2. (一社)日本土壌肥料学会   副部門長(第3部門 土壌生物)  

    2021.10   

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    Committee type:Academic society

  3. (一社)日本土壌肥料学会   代議員  

    2021.5   

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    Committee type:Academic society

  4. (一社)日本土壌肥料学会   中部支部土壌教育班員  

    2019.4   

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    Committee type:Academic society

  5. (一社)日本土壌肥料学会   欧文誌編集委員  

    2018.10   

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    Committee type:Academic society

  6. 土壌微生物学会   事務局会計  

    2016.1 - 2017.12   

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    Committee type:Academic society

  7. (一社)日本土壌肥料学会   副部門長(第3部門 土壌生物)  

    2015.10 - 2018.9   

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    Committee type:Academic society

  8. (一社)日本土壌肥料学会   会誌編集委員会委員  

    2015.4 - 2017.3   

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    Committee type:Academic society

  9. (一社)日本土壌肥料学会   中部支部会計監事  

    2014.4 - 2016.3   

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    Committee type:Academic society

  10. (一社)日本土壌肥料学会   中部支部幹事  

    2012.4 - 2014.3   

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    Committee type:Academic society

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Awards 3

  1. 2021 PAWEES Reviewer Award

    2021.10   International Society of Paddy and Water Environment Engineering  

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    Award type:Honored in official journal of a scientific society, scientific journal 

  2. 日本微生物生態学会2015年度Microbes and Environments論文賞

    2015.9   日本微生物生態学会  

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    Award type:Honored in official journal of a scientific society, scientific journal 

  3. 第31回日本土壌肥料学会奨励賞

    2013.4   一般社団法人 日本土壌肥料学会  

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    Country:Japan

 

Papers 48

  1. Investigation of iron-reducing and iron-oxidizing bacterial communities in the rice rhizosphere of iron-toxic paddy field: a case study in Burkina Faso, West Africa

    Watanabe, T; Kato, K; Kawaguchi, K; Oga, T; Ban, YSNR; Otoidobiga, CH; Sawadogo, A; Wonni, I; Ouedraogo, LS; Zongo, JD; Dianou, D; Asakawa, S

    SOIL SCIENCE AND PLANT NUTRITION   Vol. 69 ( 5-6 ) page: 283 - 293   2023.11

  2. Type-specific quantification of particulate methane monooxygenase gene of methane-oxidizing bacteria at the oxic-anoxic interface of a surface paddy soil by digital PCR

    Shinjo, R; Oe, F; Nakagawa, K; Murase, J; Asakawa, S; Watanabe, T

    ENVIRONMENTAL MICROBIOLOGY REPORTS   Vol. 15 ( 5 ) page: 392 - 403   2023.10

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  3. Complete Genome Sequence of <i>Ferrigenium kumadai</i> An22, a Microaerophilic Iron-Oxidizing Bacterium Isolated from a Paddy Field Soil

    Watanabe, T; Khalifa, A; Asakawa, S

    MICROBIOLOGY RESOURCE ANNOUNCEMENTS   Vol. 10 ( 27 ) page: e0034621   2021.7

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  4. Influence of alternate wetting and drying water-saving irrigation practice on the dynamics of Gallionella-related iron oxidizing bacterial community in paddy field soil Reviewed International coauthorship

      Vol. 152   page: 108064   2021.1

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.soilbio.2020.108064

    Web of Science

  5. Involvement of microaerophilic iron-oxidizing bacteria in the iron-oxidizing process at the surface layer of flooded paddy field soil Reviewed

    Nakagawa Koki, Murase Jun, Asakawa Susumu, Watanabe Takeshi

    JOURNAL OF SOILS AND SEDIMENTS   Vol. 20 ( 11 ) page: 4034 - 4041   2020.11

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s11368-020-02717-w

    Web of Science

  6. Long-term submergence of non-methanogenic oxic upland field soils helps to develop the methanogenic archaeal community as revealed by pot and field experiments Invited Reviewed

    Watanabe Takeshi, Asakawa Susumu, Hayano Koichi

    PEDOSPHERE   Vol. 30 ( 1 ) page: 62 - 72   2020.2

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/S1002-0160(19)60819-2

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  7. Community structure of microaerophilic iron-oxidizing bacteria in Japanese paddy field soils Reviewed

    Naruse, T., Ban, Y., Yoshida, T., Kato, T., Namikawa, M., Takahashi, T., Nishida, M., Asakawa, S., Watanabe, T.

    Soil Sci Plant Nutr   Vol. 65 ( 5 ) page: 460 - 470   2019.9

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1080/00380768.2019.1671139

    Web of Science

  8. Quantification of hydrogen production by intestinal bacteria that are specifically dysregulated in Parkinson's disease Reviewed

    Suzuki Anzu, Ito Mikako, Hamaguchi Tomonori, Mori Hiroshi, Takeda Yuka, Baba Ryuko, Watanabe Takeshi, Kurokawa Ken, Asakawa Susumu, Hirayama Masaaki, Ohno Kinji

    PLOS ONE   Vol. 13 ( 12 ) page: e0208313   2018.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1371/journal.pone.0208313

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    PubMed

  9. Ferrigenium kumadai gen. nov., sp nov., a microaerophilic iron-oxidizing bacterium isolated from a paddy field soil Reviewed

    Khalifa Ashraf, Nakasuji Yuta, Saka Norikuni, Honjo Hiroki, Asakawa Susumu, Watanabe Takeshi

    INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY   Vol. 68 ( 8 ) page: 2587 - 2592   2018.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1099/ijsem.0.002882

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  10. 微生物の力をどう利用するか−現場への適用を目指して− Reviewed

    3) 渡邉健史・豊田剛己・中山奈津子・大友 量・岡 紀邦・森 清文・橋本知義・門馬法明

    日本土壌肥料学雑誌   Vol. 89 ( 3 ) page: 260-265   2018.6

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    Authorship:Lead author   Language:Japanese  

  11. Reconstruction of pre-Hispanic agriculture in El Salvador prior to volcanic eruption, through soil analysis Reviewed

    Ito Nobuyuki, Watanabe Takeshi, Kimura Makoto

    KOOT-REVISTA DE MUSEOLOGIA   Vol. 8 ( 9 ) page: 26-36   2018

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    Language:Spanish, Castilian   Publishing type:Research paper (scientific journal)  

    DOI: 10.5377/koot.v0i9.5903

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  12. Transcription of [FeFe]-Hydrogenase Genes during H-2 Production in Clostridium and Desulfovibrio spp. Isolated from a Paddy Field Soil

    Baba Ryuko, Morita Mayumi, Asakawa Susumu, Watanabe Takeshi

    MICROBES AND ENVIRONMENTS   Vol. 32 ( 2 ) page: 125 - 132   2017.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1264/jsme2.ME16171

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  13. Bacterial community incorporating carbon derived from plant residue in an anoxic non-rhizosphere soil estimated by DNA-SIP analysis

    Lee Chol Gyu, Watanabe Takeshi, Asakawa Susumu

    JOURNAL OF SOILS AND SEDIMENTS   Vol. 17 ( 4 ) page: 1084-1091   2017.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s11368-016-1621-0

    Web of Science

  14. H2-producing bacterial community during rice straw decomposition in paddy field soil: estimation by an analysis of [FeFe]-hydrogenase gene transcripts Reviewed

    Ryuko Baba, Susumu Asakawa, Takeshi Watanabe

    Microbes and Environments   Vol. 31 ( 3 ) page: 226-233   2016.9

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1264/jsme2.ME16036

  15. Bacterial community incorporating carbon derived from plant residue in an anoxic non-rhizosphere soil estimated by DNA-SIP analysis Reviewed

    Chol Gyu Lee, Takeshi Watanabe, Susumu Asakawa

    Journal of Soils and Sediments   Vol. in press   2016

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s11368-016-1621-0

  16. Abundance and composition of ammonia oxidizers in response to degradation of root cap cells of rice in soil microcosms Reviewed

    Yong Li, Takeshi Watanabe, Jun Murase, Susumu Asakawa, Makoto Kimura

    Journal of Soils and Sediments   Vol. 14   page: 1587-1598   2014.9

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    Language:English   Publishing type:Research paper (scientific journal)  

  17. Low nitrogen fertilization adapts rice root microbiome to low nutrient environment by changing biogeochemical functions Reviewed

    Seishi Ikeda, Kazuhiro Sasaki, Takashi Okubo, Akifumu Yamashita, Kimihiro Terasawa, Zhihua Bao, Dongyan Liu, Takeshi Watanabe, Jun Murase, Susumu Asakawa, Shima Eda, Hisayuki Mitsui, Tadashi Sato, Kiwamu Minamisawa

    Microbes and Environments   Vol. 29   page: 50-59   2014.4

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  18. Quantitative analysis of coenzyme F430 in environmental samples: a new diagnostic tool for methanogenesis and anaerobic methane oxidation Reviewed

    Masanori Kaneko, Yoshinori Takano, Yoshito Chikaraishi, Nanako O. Ogawa, Susumu Asakawa, Takeshi Watanabe, Seigo Shima, Martin Kruger, Makoto Matsushita, Hiroyuki Kimura, Naohiko Ohkouchi

    Analytical Chemistry   Vol. 86   page: 3633-3638   2014.3

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  19. Methane production potential and methanogenic archaeal community structure in tropical irrigated Indian paddy soils Reviewed

    Suresh Kumar Dubey, Alpana Singh, Takeshi Watanabe, Susumu Asakawa, Ankit Singla, Hironori Arai, Kazuyuki Inubushi

    Biology and Fertility of Soils   Vol. 50   page: 369-379   2014.2

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    Language:English   Publishing type:Research paper (scientific journal)  

  20. Analysis of [FeFe]-hydrogenase genes for the elucidation of a hydrogen-producing bacterial community in paddy field soil Reviewed

    Ryuko Baba, Makoto Kimura, Susumu Asakawa, Takeshi Watanabe

    FEMS Microbiology Letters   Vol. 350   page: 249-256   2014.1

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    Language:English   Publishing type:Research paper (scientific journal)  

  21. A reduced fraction of plant N derived from atmospheric N (%Ndfa) and reduced rhizobial nifH gene numbers indicate a lower capacity for nitrogen fixation in nodules of white clover exposed to long-term CO2 enrichment Reviewed

    Takeshi Watanabe, Bowatte Saman, Paul C.D. Newton

    Biogeosciences   Vol. 10   page: 8269-8281   2013.12

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    Language:English   Publishing type:Research paper (scientific journal)  

  22. 分子生態学的手法による水田土壌のメタン生成古細菌の動態と多様性に関する研究 Invited

    渡邉健史

    日本土壌肥料学雑誌   Vol. 84   page: 355-356   2013.10

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    Authorship:Lead author   Language:Japanese  

  23. 水田からのメタン発生とメタン生成古細菌 Invited

    浅川晋, 渡邉健史

    生物の科学 遺伝   Vol. 67   page: 579-585   2013.9

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    Language:Japanese  

  24. Growth of hydrogenotrophic and acetoclastic methanogens on substrate from rice plant callus cells in anerobic soil: an estimation to the role of slough-off root cap cells to their growth Reviewed

    Yong Li, Takeshi Watanabe, Jun Murase, Susumu Asakawa, Makoto Kimura

    Soil Science and Plant Nutrition   Vol. 59   page: 548-558   2013.8

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  25. Identification of the major capsid gene (g23) of T4-type bacteriophages that assimilate substrates from root cap cells under aerobic and anaerobic soil conditions using a DNA-SIP approach Reviewed

    Yong Li, Takeshi Watanabe, Jun Murase, Susumu Asakawa, Makoto Kimura

      Vol. 63   page: 97-105   2013.8

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  26. Bacterial consortia in iron-deposited colonies formed on paddy soil surface under microaerobic conditions Reviewed

    Takeshi Watanabe, Hiroaki Sumida, Nhut Minh Do, Katsuya Yano, Susumu Asakawa, Makoto Kimura

    Soil Science and Plant Nutrition   Vol. 59   page: 337-346   2013.6

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  27. Changes in community structure of methanogenic archaea brought about by water-saving practice in paddy field soil Reviewed

    Takeshi Watanabe, Yasukazu Hosen, Ruth Agbisit, Lizzida Llorca, Nobuko Katayanagi, Susumu Asakawa, Makoto Kimura

    Soil Biology and Biochemistry   Vol. 58   page: 235-243 (Corrigendum [2014], 79: 149)   2013.3

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  28. Effect of winter-flooding on methanogenic archaeal community structure in paddy field under organic farming Reviewed

    Dongyan Liu, Chika Suekuni, Kazunori Akita, Toyoaki Ito, Masanori Saito, Takeshi Watanabe, Makoto Kimura, Susumu Asakawa

    Soil Science and Plant Nutrition   Vol. 58   page: 553-561   2012.10

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  29. Bacterial communities that decompose root cap cells in an anaerobic soil: estimation by DNA-SIP method using rice plant callus cells Reviewed

    Yong Li, Takeshi Watanabe, Susumu Asakawa, Makoto Kimura

    Soil Science and Plant Nutrition   Vol. 58   page: 297-308   2012.6

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    Language:English   Publishing type:Research paper (scientific journal)  

  30. Growth of methanogens in an oxic soil microcosm: elucidation by a DNA-SIP experiment using 13C-labeled dried rice callus Reviewed

    Chol Gyu Lee, Takeshi Watanabe, Jun Murase, Susumu Asakawa, Makoto Kimura

    Applied Soil Ecology   Vol. 58   page: 37-44   2012.6

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  31. Heterotrophic growth of cyanobacteria andphage-mediated microbial loop in soil: examination by stable isotope probing (SIP) method Reviewed

    Chol Gyu Lee, Takeshi Watanabe, Yuichi Fujita, Susumu Asakawa,Makoto Kimura

    Soil Science and Plant Nutrition   Vol. 58   page: 161-168   2012.4

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  32. Incorporation of plant residue-derived carbon into the microeukaryotic community in a rice field soil revealed by DNA stable-isotope probing Reviewed

    Jun Murase, Manami Shibata, Chol Gyu Lee, Takeshi Watanabe, Susumu Asakawa, Makoto Kimura

    FEMS Microbiology Ecology   Vol. 79   page: 371-379   2012.2

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  33. Carbon flow into ammonia-oxidizing bacteria and archaea during decomposition of 13C-labeled plant residues in soil Reviewed

    Takeshi Watanabe, Chol Gyu Lee, Jun Murase, Susumu Asakawa, Makoto Kimura

    Soil Science and Plant Nutrition   Vol. 57   page: 775-785   2011.12

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  34. Identification of microbial communities that assimilate substrate from root cap cells in an aerobic soil using a DNA-SIP approach Reviewed

    Young Li, Chol Gyu Lee, Takeshi Watanabe, Jun Murase, Susumu Asakawa, Makoto Kimura

    Soil Biology and Biochemistry   Vol. 43   page: 1928-1935   2011.9

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  35. Assimilation of glucose-derived carbon into methanogenic archaea in soil under unflooded condition Reviewed

    Takeshi Watanabe, Guanghua Wang, Chol Gyu Lee, Jun Murase, Susumu Asakawa, Makoto Kimura

    Applied Soil Ecology   Vol. 48 ( 2 ) page: 201-209   2011.6

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  36. Bacterial populations assimilating carbon from 13C-labeled plant residue in soil: Analysis by a DNA-SIP approach Reviewed

    Chol Gyu Lee, Takeshi Watanabe, Yutaka Sato, Jun Murase, Susumu Asakawa, Makoto Kimura

    Soil Biology and Biochemistry   Vol. 43 ( 4 ) page: 814-822   2011.4

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    Language:English   Publishing type:Research paper (scientific journal)  

  37. Methanogenic archaeal communities in paddy field soils in Northeast China as evaluated by PCR-DGGE, sequencing and real-time PCR analyses Reviewed

    Guanghua Wang, Takeshi Watanabe, Jian Jin, Xiaobing Liu, Makoto Kimura, Susumu Asakawa

    Soil Science and Plant Nutrition   Vol. 56 ( 6 ) page: 831-838 (Corrigendum [2014], 60: 746-748)   2010.12

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    Language:English   Publishing type:Research paper (scientific journal)  

  38. 水田に生息するメタン生成アーキア Invited Reviewed

    渡邉健史

    生物工学会誌   Vol. 88 ( 12 ) page: 676   2010.12

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    Authorship:Lead author   Language:Japanese  

  39. Vertical changes in bacterial and archaeal communities with soil depth in Japanese paddy fields Reviewed

    Takeshi Watanabe, Guanghua Wang, Katsutoshi Taki, Yoshinori Ohashi, Makoto Kimura, Susumu Asakawa

    Soil Science and Plant Nutrition   Vol. 56 ( 5 ) page: 705-715 (Corrigendum [2014], 60: 745)   2010.10

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  40. Diversity of methanogenic archaeal communities in Japanese paddy field ecosystem, estimated by denaturing gradient gel electrophoresis Reviewed

    Takeshi Watanabe, Makoto Kimura, Susumu Asakawa

    Biology and Fertility of Soils   Vol. 46   page: 343-353 (Erratum [2011] 47: 481-482)   2010.4

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  41. *Methanogenic archaeal communities developed in paddy fields in the Kojima Bay polder, estimated by denaturing gradient gel electrophoresis, real-time PCR and sequencing analyses Reviewed

    Takeshi Watanabe, Vita Ratri Cahyani, Jun Murase, Eiji Ishibashi, Makoto Kimura, Susumu Asakawa

    Soil Science and Plant Nutrition   Vol. 55   page: 73-79   2009

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  42. *Distinct members of a stable methanogenic archaeal community transcribe mcrA genes under flooded and drained conditions in Japanese paddy field soil Reviewed

    Takeshi Watanabe, Makoto Kimura, Susumu Asakawa

    Soil Biology and Biochemistry   Vol. 41   page: 276-285   2009

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  43. *Dynamics of methanogenic archaeal communities based on rRNA analysis and their relation to methanogenic activity in Japanese paddy field soils Reviewed

    Takeshi Watanabe, Makoto Kimura, Susumu Asakawa

    Soil Biology and Biochemistry   Vol. 39   page: 2877-2887   2007

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  44. Molecular identification of methane oxidizing bacteria in a Japanese rice field soil Reviewed

    Zhongjun Jia, Hiroyasu Kikuchi, Takeshi Watanabe, Susumu Asakawa, Makoto Kimura

    Biology and Fertility of Soils   Vol. 44   page: 121-130   2007

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  45. Molecular analyses reveal stability of bacterial communities in bulk soil of a Japanese paddy field: estimation by denaturing gradient gel electrophoresis of 16S rRNA genes amplified from DNA accompanied with RNA Reviewed

    Hiroyasu Kikuchi, Takeshi Watanabe, Zhongjun Jia, Makoto Kimura, Susumu Asakawa

    Soil Science and Plant Nutrition   Vol. 53   page: 448-458   2007

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  46. *Community structure of methanogenic archaea in paddy field soil under double cropping (rice-wheat) Reviewed

    Takeshi Watanabe, Makoto Kimura, Susumu Asakawa

    Soil Biology and Biochemistry   Vol. 38   page: 1264-1274   2006

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  47. Soil organic matter dynamics in lands continuously cultivated with maize and soybean in Heilongjiang Province, Northeast China: estimation from natural 13C abundance Reviewed

    Guanghua Wang, Xiaozeng Han, Natusko Nakayama, Takeshi Watanabe, Akira Watanabe, Makoto Kimura

    Soil Science and Plant Nutrition   Vol. 52   page: 139-144   2006

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    Language:English   Publishing type:Research paper (scientific journal)  

  48. *DGGE method for analyzing 16S rDNA of methanogenic archaeal community in paddy field soil Reviewed

    Takeshi Watanabe, Susumu Asakawa, Asumi Nakamura, Kazunari Nagaoka, Makoto Kimura

    FEMS Microbioloy Letters   Vol. 232   page: 153-163   2004

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

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Books 4

  1. 主な研究手法 (実践土壌学シリーズ1 土壌微生物学, 豊田剛己編)

    渡邉健史( Role: Contributor)

    朝倉書店  2018.8  ( ISBN:978-4-254-43571-9

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    Language:Japanese Book type:Textbook, survey, introduction

  2. 嫌気環境の微生物の共同作業(環境と微生物の事典,日本微生物生態学会編)

    渡邉健史( Role: Contributor)

    朝倉書店  2014.7  ( ISBN:978-4-254-17158

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    Language:Japanese

  3. 22-2. メタン酸化菌(土壌微生物実験法第3版,日本土壌微生物学会編)

    浅川晋, 渡邉健史( Role: Contributor)

    養賢堂  2013.6  ( ISBN:978-4-8425-0516-9

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    Language:Japanese

  4. 22-1. メタン生成菌(土壌微生物実験法第3版 ,日本土壌微生物学会編)

    渡邉健史, 浅川晋( Role: Contributor)

    養賢堂  2013.6  ( ISBN:978-4-8425-0516-9

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    Language:Japanese

Presentations 115

  1. Expanding the eco-collection of methane-oxidizing bacterial isolates from rice roots

    Fumika OE, Rina Shinjo, Sachiko Masuda, Arisa Shibata, Ken Shirasu, Shun Hashimoto, Hisayuki Mitsui, Shusei Sato, Takeshi Watanabe, Susumu Asakawa

    2023.11.29 

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    Event date: 2023.11

    Language:English   Presentation type:Oral presentation (general)  

  2. 水稲根より分離したGallionellaceae科鉄酸化細菌の特性の解析

    石川裕紀, 大菅康平, 秦史佳, 伊藤舞香, 浅川晋, 渡邉健史

    日本微生物生態学会第36回浜松大会・アジア微生物生態シンポジウム第13回浜松大会  2023.11.28 

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    Event date: 2023.11

    Language:Japanese   Presentation type:Poster presentation  

    Venue:浜松  

  3. 樹木の幹内部より分離した新規メタン酸化細菌Methylosinus endotrunci, sp. nov.

    遠藤敦也, 原田幹才, 新庄莉奈, 大江史花, 渡邉健史, Daniel Epron, 浅川晋

    日本微生物生態学会第36回浜松大会・アジア微生物生態シンポジウム第13回浜松大会  2023.11.28 

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    Event date: 2023.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:浜松  

  4. 水田土壌に生息するメタン生成古細菌の分離

    和田州司, 浅川晋, 渡邉健史

    日本土壌肥料学会中部支部第103回例会・中部土壌肥料研究会第113回例会  2023.11.13 

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    Event date: 2023.11

    Language:Japanese   Presentation type:Poster presentation  

    Venue:津  

  5. Rice root colonization by diverse methanotroph strains and the effect of oxygen on their nitrogen fixing activity

    Abdela Argen Adem, Taiho Komatsu, Rina Shinjo, Fumika Oe, Sachiko Masuda, Arisa Shibata, Ken Shirasu, Takeshi Watanabe, Susumu Asakawa, Hisayuki Mitsui, Shusei Sato

    2023.9.27 

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    Event date: 2023.9

    Language:English   Presentation type:Oral presentation (general)  

  6. イネにおけるメタン酸化微生物コンソーシアムの探索と分離

    新庄 莉奈, 大江 史花, Ma Xuping, 福嶋 大智, 梶浦 雅子, 常田 岳志,橋本 駿, 三井 久幸, 佐藤 修正, 渡邉 健史, 浅川 晋

    植物微生物研究会第32回研究交流会  2023.9.27 

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:大阪  

  7. 水田土壌の鉄酸化反応への微好気性鉄酸化細菌の関与

    渡邉健史

    日本土壌肥料学会2023年度愛媛大会  2023.9.14 

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:愛媛  

  8. 田畑輪換が水田土壌の微生物群集に及ぼす影響:11年間にわたる動態解析(1) International coauthorship

    渡邉健史・小島久恵・松葉悠真 ・伊藤舞香・Joseph Sawadogo Benewindé・Mohammad Saiful Alam・劉冬艶・海野裕晃 ・村瀬潤 ・土屋一成・浪川茉莉・髙本慧・戸上和樹・高橋智紀・西田瑞彦・浅川晋

    日本土壌肥料学会2023年度愛媛大会  2023.9.12 

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:愛媛  

  9. 田畑輪換が水田土壌の微生物群集に及ぼす影響:11年間にわたる動態解析(2) International coauthorship

    渡邉健史・小島久恵・松葉悠真 ・伊藤舞香・Joseph Sawadogo Benewindé・Mohammad Saiful Alam・劉冬艶・海野裕晃 ・村瀬潤 ・土屋一成・浪川茉莉・髙本慧・戸上和樹・高橋智紀・西田瑞彦・浅川晋

    日本土壌肥料学会2023年度愛媛大会  2023.9.12 

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:愛媛  

  10. Robustness of methanogenic archaeal community in paddy field soil Invited International conference

    Takeshi Watanabe

    Inception Workshop on Reducing Methane Emissions from Rice  2023.7.11  International Rice Research Institute

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    Event date: 2023.7

    Language:English   Presentation type:Symposium, workshop panel (nominated)  

    Country:Philippines  

  11. 水田土壌のGallionellaceae科鉄酸化細菌群集の鉄酸化ポテンシャル

    渡邉健史・浅野恵大・山口真輝・森 小百合・浅川 晋

    日本土壌微生物学会2023年度千葉大会  2023.6.10 

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    Event date: 2023.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:千葉  

  12. Expanding the Eco-Collection of Methane-Oxidizing Bacteria from Rice Roots

    Fumika Oe, Rina Shinjo, Sachiko Masuda, Arisa Shibata, Ken Shirasu, Shun Hashimoto, Hisayuki Mitsui, Shusei Sato, Takeshi Watanabe, Susumu Asakawa

    2023.5.26 

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    Event date: 2023.5

    Language:English   Presentation type:Oral presentation (general)  

  13. Methanogenic microbial communities living inside trees

    Mikitoshi Harada, Takeshi Watanabe, Daniel Epron, Susumu Asakawa

    2023.5.26 

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    Event date: 2023.5

    Language:English   Presentation type:Poster presentation  

  14. Cultivation and isolation of methane-oxidizing bacteria living inside tree stems

    Atsuya Endo, Mikitoshi Harada, Rina Shinjo, Fumika Oe, Takeshi Watanabe, Daniel Epron, Susumu Asakawa

    2023.5.26 

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    Event date: 2023.5

    Language:English   Presentation type:Poster presentation  

  15. 水田土壌落水時の微好気性鉄酸化細菌群集の鉄酸化ポテンシャルの推定

    山口真輝・森小百合・浅川晋・渡邉健史

    2022年度日本土壌肥料学会中部支部・中部土壌肥料研究会例会 

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    Event date: 2022.11

    Language:Japanese   Presentation type:Poster presentation  

    Venue:名古屋  

  16. 水田由来メタン酸化細菌エココレクションの充実

    大江史花・新庄莉奈・佐藤修正・渡邉健史・浅川晋

    日本微生物生態学会第35回大会 

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    Event date: 2022.10 - 2022.11

    Language:Japanese   Presentation type:Poster presentation  

    Venue:札幌  

  17. 低メタン排出イネ品種における高活性メタン酸化細菌群の探索

    新庄莉奈・大江史花・Ma Xuping, 福嶋大智・梶浦雅子・常田岳志・橋本駿・三井久幸・佐藤修正・渡邉健史・浅川晋

    日本微生物生態学会第35回大会 

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    Event date: 2022.10 - 2022.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:札幌  

  18. ブルキナファソ鉄過剰障害発生水田の細菌群集構造の特徴 International coauthorship

    渡邉健史・加藤健斗・川口晃平・尾賀俊哉・伴佳典・Otoidobiga Cécile Harmonie・Sawadogo Adama・Wonni Issa・Ouedraogo Léonard・Zongo Jean Didier・Dianou Dayéri・浅川晋

    日本土壌肥料学会2022年度東京大会  2022.9.13 

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  19. デジタルPCRによるメタン酸化細菌の定量法の開発と水田土壌表層における菌群の分別定量解析

    新庄莉奈・大江史花・中川晃希・村瀬潤・浅川晋・渡邉健史

    日本土壌肥料学会2022年度東京大会 

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    Event date: 2022.9

    Language:Japanese   Presentation type:Poster presentation  

    Venue:東京   Country:Japan  

  20. Dynamics of Gallionella-related iron-oxidizing bacterial community in paddy field soil International coauthorship International conference

    Watanabe, T., Naruse, T., Nakagawa, K., Ban, Y., Yoshida, T., Kato, T., Namikawa, M., Takahashi, T., Nishida, M., Katayanagi, N., Agbisit, R., Llorca, L., Hosen, Y., Murase, J., Asakawa, S.

    22th World Congress of Soil Science (WCSS)  2022.8 

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    Event date: 2022.7 - 2022.8

    Language:English   Presentation type:Poster presentation  

    Venue:Glasgow   Country:United Kingdom  

  21. 樹木の幹内部に生息するメタン生成古細菌群集の解析

    原田幹才, Daniel Epron, 渡邉健史, 浅川晋

    第34回日本Archaea研究会  2022.7.15 

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    Event date: 2022.7

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:博多   Country:Japan  

  22. 樹木の幹内部に生息するメタン生成微生物群集の解析

    原田幹才, Daniel Epron, 渡邉健史, 浅川晋

    第34回日本微生物生態学会大会  2021.11 

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    Event date: 2021.10 - 2021.11

    Language:Japanese   Presentation type:Poster presentation  

  23. ウェルチップ方式デジタルPCRを用いた水田由来メタン酸化細菌の定量手法の検討

    新庄莉奈・大江史花・浅川晋・渡邉健史

    第34回日本微生物生態学会大会  2021.11 

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    Event date: 2021.10 - 2021.11

    Language:Japanese   Presentation type:Poster presentation  

  24. 鉄過剰障害発生水田の水稲根圏の鉄酸化菌および鉄還元菌の存在量 International coauthorship

    27) 加藤健斗・川口晃平・尾賀俊哉・伴 佳典・Otoidobiga Cécile・Sawadogo Adama・Wonni Issa・Ouedraogo Léonard・Zongo Jean Didier・Dianou Dayéri・浅川晋・渡邉健史

    日本土壌肥料学会2021年度北海道大会  2021.9 

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    Event date: 2021.9

    Language:Japanese   Presentation type:Poster presentation  

  25. 樹木の幹内部に生息するメタン生成古細菌の存在量と種類

    原田幹才, Daniel Epron, 渡邉健史, 浅川晋

    第33回日本Archaea研究会  2021.7 

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    Event date: 2021.7

    Language:Japanese   Presentation type:Oral presentation (general)  

  26. 田畑輪換が土壌中の鉄酸化菌・還元菌の存在量に及ぼす影響

    松葉悠真・伊藤舞香・劉冬艶・海野裕晃・石川裕己・土屋一成・浪川茉莉・髙本慧・戸上和樹・高橋智紀・西田瑞彦・浅川晋・渡邉健史

    日本土壌微生物学会2021年度大会  2021.6 

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    Event date: 2021.6

    Language:Japanese   Presentation type:Oral presentation (general)  

  27. 田畑輪換圃場の土壌中の微好気性鉄酸化細菌群集の動態

    松葉悠真・伊藤舞香・劉冬艶・海野裕晃・石川裕己・西田瑞彦・土屋一成・浪川茉莉・高本慧・戸上和樹・高橋智紀・浅川晋・渡邉健史

    日本土壌肥料学会2020年度岡山大会 

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    Event date: 2020.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン   Country:Japan  

  28. 水稲根圏の鉄の酸化還元反応に関わる微生物群集に関する研究 (1) 微好気性鉄酸化細菌群集の解析 International coauthorship

    加藤健斗・尾賀俊哉・伴佳典・Otoidobiga Cécile・Sawadogo Adama・Wonni Issa・Ouedraogo Léonard・Zongo Jean Didier・Dianou Dayéri・浅川晋・渡邉健史

    日本土壌肥料学会中部支部第99回例会・中部土壌肥料研究会第109回例会 

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    Event date: 2019.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋   Country:Japan  

  29. 水稲根圏の鉄の酸化還元反応に関わる微生物群集に関する研究 (2) 鉄還元菌群集の解析 International coauthorship

    加藤健斗・尾賀俊哉・伴佳典・Otoidobiga Cécile・Sawadogo Adama・Wonni Issa・Ouedraogo Léonard・Zongo Jean Didier・Dianou Dayéri・浅川晋・渡邉健史

    日本土壌肥料学会中部支部第99回例会・中部土壌肥料研究会第109回例会 

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    Event date: 2019.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋   Country:Japan  

  30. AWD節水水田土壌中の微好気性鉄酸化細菌群集の動態 International coauthorship

    渡邉健史・片柳薫子・Agbisit Ruth・Llorca Lizzida・宝川靖和・浅川晋

    日本土壌肥料学会2019年度静岡大会 

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    Event date: 2019.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:静岡   Country:Japan  

  31. 水稲根に生息する微好気性鉄酸化細菌の分離

    渡邉健史・伊藤舞香・浅川晋

    日本土壌微生物学会2019年度大会 

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    Event date: 2019.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:札幌   Country:Japan  

  32. 西アフリカ鉄過剰障害発生水田土壌中の鉄酸化・還元菌群集の解析

    加藤健斗・Sawadogo Adama・Otoidobiga Cécile・Dianou Dayéri・浅川晋・渡邉健史

    日本土壌肥料学会2018年度神奈川大会 

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    Event date: 2018.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  33. Microaerophilic iron-oxidizing bacterial community in the bulk soil and rhizosphere of paddy field International conference

    Kato, K., Naruse, T., Ban, Y., Yoshida, T., Funao, T., Kato, T., Namikawa, M., Takahashi, T., Nishida, M., Asakawa, S., Watanabe, T.

    21th World Congress of Soil Science (WCSS) 

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    Event date: 2018.8

    Language:English   Presentation type:Poster presentation  

  34. 水稲根圏の鉄酸化・還元菌群集の解析

    加藤健斗・伴 佳典・船生岳人・浅川 晋・渡邉健史

    日本土壌微生物学会2018年度大会 

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    Event date: 2018.6

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  35. 水田土壌より分離した微好気性鉄酸化細菌Ferrisolum kumadai gen. nov., sp. nov.

    カァリファ アシュラフ・中筋悠太・坂紀邦・本庄弘樹・浅川晋・渡邉健史

    日本農芸化学会2018年度名古屋大会 

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    Event date: 2018.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  36. Molecular ecological analysis of community structure of microaerophilic iron-oxidizing bacteria in paddy field soil International conference

    Watanabe, T., Asakawa, S.

    13th International Conference of East and Southeast Asia Federation of Soil Science Society (ESAFS) 

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    Event date: 2017.12

    Language:English   Presentation type:Oral presentation (general)  

    Country:Thailand  

  37. 水田土壌表層部の微好気性鉄酸化細菌群集構造の解析

    中川晃希・村瀬潤・浅川晋・渡邉健史

    日本土壌肥料学会2017年度仙台大会 

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  38. 水田土壌におけるメタン生成古細菌の生残性について

    浅川晋・劉冬艶・渡邉健史

    日本Archaea研究会第31回講演会 

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  39. 水田下層土の微好気性鉄酸化細菌の群集構造解析

    中川晃希・浅川晋・渡邉健史

    日本土壌肥料学会中部支部第96回例会・中部土壌肥料研究会第106回例会 

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    Event date: 2017.3

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  40. 水田土壌より分離した水素生成細菌株のhydA転写活性はパラログ間で異なる

    馬場竜子・森田麻友美・浅川晋・渡邉健史

    第31回日本微生物生態学会大会 

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    Event date: 2016.10

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  41. 水田土壌の微好気性鉄酸化細菌群集構造の経時変化

    成瀬達志・浪川茉莉・高橋智紀・西田瑞彦・浅川晋・渡邉健史

    日本土壌肥料学会2016年度佐賀大会 

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    Event date: 2016.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  42. The relationship between transcriptional activity of [FeFe]-hydrogenase genes and H2 production in bacterial strains isolated from a paddy field soil International conference

    Ryuko Baba, Mayumi Morita, Susumu Asakawa, Takeshi Watanabe

    16th International Symposium on Microbial Ecology 

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    Event date: 2016.8

    Language:English   Presentation type:Poster presentation  

    Country:Canada  

  43. A novel microaerophilic iron-oxidizing bacterium isolated from a Japanese paddy field soil International conference

    Watanabe, T., Nakasuji, Y., Saka, N., Honjo, H., Asakawa, S.

    12th International Conference of East and Southeast Asia Federation of Soil Science Society (ESAFS) 

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    Event date: 2015.9

    Language:English   Presentation type:Poster presentation  

    Country:China  

  44. 水田土壌の微好気性鉄酸化細菌の群集構造解析法の検討

    渡邉健史・浅川晋

    日本土壌肥料学会2015年度京都大会 

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    Event date: 2015.9

    Language:English   Presentation type:Oral presentation (general)  

    Venue:京都   Country:Japan  

  45. Isolation of a microaerobic Fe-oxidizing bacterium from a rice paddy field soil: toward elucidation of its ecophysiology at the soil redox interface International conference

    Watanabe, T., Nakasuji, Y., Saka, N., Honjo, H., Asakawa, S.

    13th International Conference on the Biogeochemistry of Trace Elements (ICOBTE) 

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    Event date: 2015.7

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  46. 水田土壌に生息する好中性微好気性鉄酸化細菌の分離

    渡邉健史・中筋悠太・坂紀邦・本庄弘樹・浅川晋

    環境微生物系学会合同大会2014 

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    Event date: 2014.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:浜松   Country:Japan  

  47. 水田土壌中で活性を有する水素生成微生物群集の解析

    馬場竜子・浅川晋・渡邉健史

    環境微生物系学会合同大会2014 

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    Event date: 2014.10

    Language:Japanese   Presentation type:Poster presentation  

    Venue:浜松   Country:Japan  

  48. Uniqueness of the community structure of methanogenic archaea in paddy field ecosystem International conference

    Takeshi Watanabe

    International workshop `Biogeochemistry of submerged agro-ecosystems: Properties, processes, cycles and functions' 

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    Event date: 2014.9

    Language:English   Presentation type:Oral presentation (keynote)  

    Country:Germany  

  49. Isolation of a neutrophilic, microaerobic Fe-oxidizing bacterium from paddy field soil International conference

    Watanabe, T., Nakasuji, Y., Saka, N., Honjo, H., Asakawa, S.

    International workshop `Biogeochemistry of submerged agro-ecosystems: Properties, processes, cycles and functions' 

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    Event date: 2014.9

    Language:English   Presentation type:Poster presentation  

    Country:Germany  

  50. 嫌気水田土壌の還元化に伴う活性を有する水素生成微生物群集の変化

    馬場竜子・浅川晋・渡邉健史

    日本土壌肥料学会2014年度東京大会 

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    Event date: 2014.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  51. 水田土壌におけるバイオ炭およびアゾラ・シアノバクテリアの施用が温室効果ガスに与える影響

    花澤俊祐・Ali Muhammad Aslam・Ankit Singla・岩佐博那・劉冬艶・渡邉健史・浅川晋・程為国・犬伏和之

    日本土壌肥料学会2014年度東京大会 

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    Event date: 2014.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  52. Development of methanogenic archaeal community after submergence of non-methanogenic soils International conference

    Watanabe, T., Asakawa, S., Hayno, K.

    15th International Symposium on Microbial Ecology (ISME 15) 

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    Event date: 2014.8

    Language:English   Presentation type:Poster presentation  

    Country:Korea, Republic of  

  53. No nitrogen fertilization changes rice root microbiome abundant in diazotrophic methanotrophs through a plant symbiosis gene International conference

    Minamisawa, K., Ikeda, S., Bao, Z., Okubo, T., Sasaki, K., Imaizumi-Anraku, H., Tokida, T., Kubota, K., Kasahara, Y., Liu, D., Watanabe, T., Murase, J., Asakawa, S., Anda, M., Tsurumaru, H., Shinoda, R.

    15th International Symposium on Microbial Ecology (ISME 15) 

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    Event date: 2014.8

    Language:English   Presentation type:Poster presentation  

    Country:Korea, Republic of  

  54. Effect of biochar and cyanobacteria amendments on greenhouse gas production in paddy soil International conference

    Hanazawa, S., Asalam, A.M., Singla, A., Iwasa, H., Liu, D., Watanabe, T., Asakawa, S., Weiguo, C., Inubushi, K.

    15th International Symposium on Microbial Ecology (ISME 15) 

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    Event date: 2014.8

    Language:English   Presentation type:Poster presentation  

    Country:Korea, Republic of  

  55. Assimilation of plant-derived carbon by microeukaryotes in a rice filed soil International conference

    Murase, J., Lee, C.G., Li, Y., Shibata, M., Nakatani, H., Minami, H., Watanabe, T., Asakawa, S., Kimura, M.

    15th International Symposium on Microbial Ecology (ISME 15) 

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    Event date: 2014.8

    Language:English   Presentation type:Poster presentation  

    Country:Korea, Republic of  

  56. Dynamics of hydrogen-producing bacterial community during the anaerobic decomposition of rice straw in paddy soil International conference

    Baba, R., Asakawa, S., Watanabe, T.

    15th International Symposium on Microbial Ecology (ISME 15) 

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    Event date: 2014.8

    Language:English   Presentation type:Poster presentation  

    Country:Korea, Republic of  

  57. Response of methanogenic archaeal community in paddy field soil to the managements of winter-flooding, free air CO2 enrichment (FACE) and paddy-upland rotation

    Liu, D. Suekuni, C., Akita, K., Ito, T., Saito, M., Watanabe, T., Tago, K., Hayatsu, M., Tokida, T., Sakai, H., Nakamura, H., Usui, Y., Hasegawa, T., Ishikawa, H., Nishida, M., Tsuchiya, K., Takahashi, T., Asakawa, S.

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    Event date: 2014.7

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  58. Effects of winter-flooding, FACE (Free Air CO2 enrichment) and paddy-upland rotation on methanogenic archaeal community International conference

    Liu, D. Suekuni, C., Akita, K., Ito, T., Saito, M., Watanabe, T., Tago, K., Hayatsu, M., Tokida, T., Sakai, H., Nakamura, H., Usui, Y., Hasegawa, T., Ishikawa, H., Nishida, M., Tsuchiya, K., Takahashi, T., Kimura, M., Asakawa, S.

    20th World Congress of Soil Science (WCSS) 

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    Event date: 2014.6

    Language:English   Presentation type:Poster presentation  

    Country:Korea, Republic of  

  59. Identification of carbon flow derived from callus mediated by T4-type bacteriophages in microbial loop in rice soil International conference

    Li, Y., Watanabe, T., Asakawa, S., Kimura, M.

    20th World Congress of Soil Science (WCSS) 

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    Event date: 2014.6

    Language:English   Presentation type:Poster presentation  

    Country:Korea, Republic of  

  60. メタン生成補酵素F430を用いたメタン生成場と規模の定量

    金子雅紀, 高野淑識, 大河内直彦, 浅川晋, 渡邉健史

    第5回メタンハイドレート総合シンポジウム 

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    Event date: 2013.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  61. Assimilation of plant-derived carbon by microeukayotes in rice field soil revealed using stable-isotope probing International conference

    Jun Murase, Chol Gyu Lee, Yong Li, Manami Shibata, Haruka Nakatani, Hisako Minami, Takeshi Watanabe, Susumu Asakawa, Makoto Kimura

    The 5th Taiwan-Korea-Japan International Symposium on Microbial Ecology 

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    Event date: 2013.11

    Language:English   Presentation type:Poster presentation  

    Country:Taiwan, Province of China  

  62. イネ由来の新鮮有機物を利用する水田土壌の真核微生物群集の解析

    村瀬潤, 南寿子, 李勇, 渡邉健史, 浅川晋, 木村眞人

    第29回日本微生物生態学会大会 

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    Event date: 2013.11

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  63. Bacterial consortia in iron-deposited colonies formed on paddy soil surface under microaerobic condition International conference

    Takeshi Watanabe, Hiroaki Sumida, Nhut Minh Do, Katsuya Yano, Susumu Asakawa, Makoto Kimura

    11th Conference of the East and Southeast Asian Federation of Soil Science (ESAFS11) 

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    Event date: 2013.10

    Language:English   Presentation type:Poster presentation  

    Country:Indonesia  

  64. Effects of winter flooding and paddy-upland rotation on microbial communities in paddy field soil International conference

    Susumu Asakawa, Chika Suekuni, Dongyan Liu, Hiroki Ishikawa, Mizuhiko Nishida, Kazunari Tsuchiya, Kazunori Akita, Toyoaki Ito, Masanori Saito, Takeshi Watanabe, Makoto Kimura

    11th Conference of the East and Southeast Asian Federation of Soil Science (ESAFS11) 

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    Event date: 2013.10

    Language:English   Presentation type:Poster presentation  

    Country:Indonesia  

  65. 分子生態学的手法による水田土壌のメタン生成古細菌の動態と多様性に関する研究

    渡邉健史

    日本土壌肥料学会2013年度名古屋大会 

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    Event date: 2013.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  66. 熱分解した稲わらが水田土壌の理化学性に及ぼす影響の評価

    大下悟史, 渡邉健史, 村瀬潤, 浅川晋, 木村眞人

    日本土壌肥料学会2013年度名古屋大会 

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    Event date: 2013.9

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  67. 異化的亜硫酸還元酵素遺伝子およびホルミルテトラヒドロ葉酸合成酵素遺伝子を対象とした水田土壌の硫酸還元菌およびCO2還元酢酸生成菌の群集構造解析

    水野かすみ, 浅川晋, 渡邉健史

    日本土壌肥料学会2013年度名古屋大会 

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    Event date: 2013.9

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  68. 水田土壌の水素生成微生物群集構造解析

    馬場竜子, 木村眞人, 浅川晋, 渡邉健史

    日本土壌肥料学会2013年度名古屋大会 

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    Event date: 2013.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  69. Quantification of methanogenic potential in environmental samples International conference

    Masanori Kaneko, Yoshinori Takano, Takeshi Watanabe, Susumu Asakawa, Seigo Shima, Nanako Ogawa, Naohiko Ohkouchi

    Goldschmidt 2013 

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    Event date: 2013.8

    Language:English   Presentation type:Poster presentation  

    Country:Italy  

  70. 分子生態学的手法による水田土壌のメタン生成古細菌の動態と多様性に関する研究

    渡邉健史

    中部土壌肥料研究会2013年度春の講演会 

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    Event date: 2013.5

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  71. 嫌気条件下の水田土壌における植物遺体由来の炭素を取り込んだ細菌群集の解析

    李哲揆, 渡邉健史, 浅川晋, 木村眞人

    日本土壌肥料学会2012年度鳥取大会 

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    Event date: 2012.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  72. Hydrogen-producing bacterial community in paddy field soils estimated by [FeFe] hydrogenase gene

    Ryuko Baba, Makoto Kimura, Susumu Asakawa, Takeshi Watanabe

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    Event date: 2012.9

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  73. 水田土壌に形成されたコロニー中の鉄酸化細菌の分子系統学的解析

    渡邉健史, 隅田裕明, M.D. Nhut, 矢野勝也, 浅川晋, 木村眞人

    日本土壌肥料学会2012年度鳥取大会 

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    Event date: 2012.9

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  74. Identification of major capsid gene (g23) of T4-type bacteriophages that assimilate substrate from root cap cells in aerobic and anerobic soil conditions applying a DNA-SIP approach.

    Yong Li, Takeshi Watanabe, Jun Murase, Susumu Asakawa, Makoto Kimura

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    Event date: 2012.9

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  75. Iron-oxidizers in bacterial colonies formed on surface of paddy soil International conference

    Takeshi Watanabe, Hiroaki Sumida, Do Minh Nhut, Katsuya Yano, Susumu Asakawa, Makoto Kimura

    14th International Symposium on Microbial Ecology (ISME 14) 

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    Event date: 2012.8

    Language:English   Presentation type:Poster presentation  

    Country:Denmark  

  76. 大気CO2濃度の上昇がニュージーランド放牧草地のクローバーおよび根粒菌に及ぼす影響

    渡邉健史, Saman Bowatte, Paul C.D. Newton

    日本土壌微生物学会2012年度大会 

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    Event date: 2012.6

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  77. 冬季湛水・有機栽培が水田土壌の微生物群集に及ぼす影響—細菌、糸状菌およびメタン生成古細菌群集のDGGE解析—

    浅川晋, 末國千佳, 劉冬艶, 渡邉健史, 木村眞人, 秋田和則, 田島亮介, 伊藤豊彰, 齋藤雅典

    日本土壌微生物学会2011年度大会 

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    Event date: 2011.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  78. 土壌中のアンモニア酸化細菌および古細菌による植物遺体由来炭素の取り込み

    渡邉健史, 李哲揆, 村瀬潤, 浅川晋, 木村眞人

    日本土壌肥料学会2011年度つくば大会 

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    Event date: 2011.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  79. Effect of winter-flooding on methanogenic archaeal community in paddy field soi

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    Event date: 2011.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  80. 植物遺体の分解に関わる水田土壌の真核微生物群集—DNA-SIP法による解析—

    村瀬潤, 柴田真奈美, 李哲揆, 渡邉健史, 浅川晋, 木村眞人

    日本土壌肥料学会2011年度つくば大会 

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    Event date: 2011.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  81. 好気環境土壌におけるメタン生成菌の生育

    李哲揆, 渡邉健史, 村瀬潤, 浅川晋, 木村眞人

    日本土壌肥料学会2011年度つくば大会 

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    Event date: 2011.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  82. AWD節水水田土壌中のメタン生成古細菌の分子生態学的解析―継続的な節水管理が群集構造に及ぼす影響の評価

    日本土壌肥料学会2010年度北海道大会 

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    Event date: 2010.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

    渡邉健史・宝川靖和・Ruth Agbisit・Lizzida Llorca・片柳薫子・藤田大輔・浅川晋・木村眞人

  83. Changes in community structure and transcriptional activity of methanogenic archaea in a paddy field soil brought about by a water-saving practice – Estimation by PCR-DGGE and qPCR of 16S rDNA and 16S rRNA International conference

    Takeshi Watanabe, Yasukazu Hosen, Ruth Agbisit, Lizzida Llorca, Daisuke Fujita, Susumu Asakawa, Makoto Kimura

    19th World Congress of Soil Science 

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    Event date: 2010.8

    Language:English   Presentation type:Poster presentation  

  84. 水田生態系におけるメタン生成古細菌群集の多様性と分布

    渡邉健史・木村眞人・浅川晋

    第23回日本Archaea研究会 

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    Event date: 2010.7

    Language:Japanese  

    Country:Japan  

  85. AWD節水水稲栽培が土壌中のメタン生成古細菌群に及ぼす影響の評価―16S rRNAを対象としたPCR-DGGE、qPCR解析―

    渡邉健史・宝川靖和・Ruth Agbisit・Lizzida Llorca・藤田大輔・浅川晋・木村眞人

    日本土壌微生物学会2010年度大会 

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    Event date: 2010.5

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  86. Stable in community structure, but variable in metabolic activity of methanogen in paddy field soil International conference

    MARCO Symposium 2009 Challenges for Agro-Environmental Research in Monsoon Asia - Workshop 5. Perspective of metagenomics in agricultural research 

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    Event date: 2009.10

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  87. 層位別にみた愛知県の水田土壌中のメタン生成古細菌の群集構造

    渡邉健史・王光華・瀧勝俊・大橋祥範・木村眞人・浅川晋

    日本土壌肥料学会2009年度京都大会 

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    Event date: 2009.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  88. 水田土壌はメタン生成古細菌にとって安住の地である

    浅川晋・渡邉健史・木村眞人

    第22回日本Archaea研究会 

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    Event date: 2009.7

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  89. 乾湿繰返し灌漑による節水管理が水田土壌中のメタン生成古細菌群集に及ぼす影響―フィリピンIRRI 圃場を対象としたPCR- DGGE、real-time PCR 解析―

    渡邉健史・宝川靖和・Ruth Agbisit・Lizzida Llorca・藤田大輔・浅川晋・木村眞人

    日本土壌微生物学会2009年度大会 

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    Event date: 2009.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  90. 有機物長期連用水田土壌中の糸状菌群集のDGGE解析

    15) 石川裕己・平松雅代・藤井武司・渡邉健史・齋藤雅人・西田瑞彦・関矢博幸・加藤直人・土屋一成・木村眞人・浅川晋

    日本土壌肥料学会2008年度愛知大会 

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    Event date: 2008.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  91. 有機物長期連用水田土壌中の細菌群集-16S rDNAのクローンライブラリ解析-

    浅川晋・平松雅代・藤井武司・渡邉健史・齋藤雅人・西田瑞彦・関矢博幸・加藤直人・土屋一成・木村眞人

    日本土壌肥料学会2008年度愛知大会 

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    Event date: 2008.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  92. 水田生態系におけるメタン生成古細菌群集の系統学的比較ー16S rRNA遺伝子の進化距離に基づく主成分分析ー

    渡邉健史・木村眞人・浅川晋

    日本土壌肥料学会2008年度愛知大会 

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    Event date: 2008.9

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  93. Phylogenetic comparison of methanogenic archaeal communities in a Japanese paddy field ecosystem International conference

    12th International Symposium on Microbial Ecology 

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    Event date: 2008.8

    Language:English   Presentation type:Poster presentation  

  94. 土壌微生物群集を鳥瞰するー16S rRNA遺伝子の進化距離の主成分分析に基づく菌群のマッピングー

    浅川晋、渡邉健史、木村眞人

    日本土壌微生物学会2008年度大会 

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    Event date: 2008.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  95. メタン生成古細菌の安定した群集構造の形成過程の追跡ー畑土壌を用いた湛水培養実験による分子生態学的解析

    渡邉健史、木村眞人、浅川晋

    日本土壌微生物学会2008年度大会 

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    Event date: 2008.6

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  96. 水田からのメタン発生に関わる微生物

    浅川晋・渡邉健史・木村眞人

    日本農芸化学会2008年度大会 

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    Event date: 2008.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  97. 岡山児島湾干拓地水田に生息するメタン生成古細菌の群集構造

    渡邉健史・Vita Ratri Cahyani・石橋英二・中山奈津子・Zhongjun Jia・村瀬潤・木村眞人・浅川晋

    日本土壌肥料学会中部支部第87回例会 

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    Event date: 2007.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  98. Effect of long-term application of rice straw compost on bacterial communities in paddy field soil in Japan International conference

    8th Conference of the East and Southeast Asian Federation of Soil Science 

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    Event date: 2007.10

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  99. Effects of field managements on the community structures of methanogenic archaea in Japanese paddy field soils International conference

    8th Conference of the East and Southeast Asian Federation of Soil Science 

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    Event date: 2007.10

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  100. Molecular ecological analyses of methanogenic archaeal 16S rRNA and mcrA genes in Japanese paddy field soils

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    Event date: 2007.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  101. Bacterial communities in paddy fields with long-term application of rice straw compost

    Asakawa, S., Hiramatsu, M., Fujii, T., Watanabe, T., Saito, M., Nishida, M., Sekiya, H., Kato, N., Tsuchiya, K. and Kimura, M

    第23回日本微生物生態学会 

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    Event date: 2007.9

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  102. 有機物長期連用水田土壌中の細菌群集のDGGE法による解析

    平松雅代・藤井武司・渡邉健史・齋藤雅人・西田瑞彦・関矢博幸・加藤直人・土屋一成・木村眞人・浅川晋

    日本土壌肥料学会2007年度東京大会 

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    Event date: 2007.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  103. 水田土壌中のメタン生成古細菌群の生態解析―DNAおよびRNAを用いた手法の適用とその問題点―

    渡邉健史・木村眞人・浅川晋

    日本土壌肥料学会2007年度東京大会 

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    Event date: 2007.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  104. 水田土壌中のメタン生成古細菌群の分子生態学的解析

    渡邉健史・木村眞人・浅川晋

    日本Archaea研究会第20回講演会 

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    Event date: 2007.7

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  105. 水田土壌を接種源とし酢酸を基質として集積したメタン生成共生系を構成する微生物群の解析

    森田麻友美・渡邉健史・木村眞人・浅川晋

    日本土壌肥料学会2006年度秋田大会 

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    Event date: 2006.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  106. 水田圃場においてメタン生成活性を有する古細菌群集の解明―酵素遺伝子mcrA及びそのmRNAを標的としたPCR-DGGE解析―

    渡邉健史・木村眞人・浅川晋

    日本土壌肥料学会2006年度秋田大会 

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    Event date: 2006.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  107. Composition and dynamics of methanogenic archaeal community in Japanese paddy field soils International conference

    18th World Congress of Soil Science 

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    Event date: 2006.7

    Language:English   Presentation type:Poster presentation  

  108. 水田作土中の真正細菌群集構造のPCRおよびRT-PCRによるDGGE解析

    菊地弘泰・渡邉健史・Zhongjun Jia・木村眞人・浅川晋

    日本微生物生態学会第21回大会 

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    Event date: 2005.11

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  109. PCR-およびRT-PCR-DGGE解析による水田土壌中のメタン生成古細菌群集の構成と変動

    渡邉健史・木村眞人・浅川晋

    第21回日本微生物生態学会 

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    Event date: 2005.11

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  110. 水田作土中の真正細菌群集構造のPCR-DGGE法による解析

    菊地弘泰・渡邉健史・Zhongjun Jia・木村眞人・浅川晋

    日本土壌肥料学会2005年度島根大会 

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    Event date: 2005.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  111. 16S rRNAを対象としたDGGE法による水田土壌中のメタン生成古細菌の群集構造解析

    渡邉健史・木村眞人・浅川晋

    日本土壌肥料学会2005年度島根大会 

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    Event date: 2005.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  112. Molecular identification of methane-oxidizing bacteria in rice paddy field

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    Event date: 2004.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  113. 水田圃場におけるメタン生成古細菌の群集構造の解析

    渡邉健史・浅川晋・木村眞人

    日本土壌肥料学会2004年度福岡大会 

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    Event date: 2004.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  114. PCR-DGGE法による水田土壌中のメタン生成古細菌群の解析

    渡邉健史・浅川晋・中村明日美・木村眞人

    日本土壌肥料学会2003年度神奈川大会 

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    Event date: 2003.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  115. 水田土壌のメタン生成古細菌を対象としたPCR-DGGE法の検討

    浅川晋・渡邉健史・中村明日美・木村眞人

    日本土壌微生物学会2003年度大会 

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    Event date: 2003.7

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

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Research Project for Joint Research, Competitive Funding, etc. 3

  1. Gallionellaceae科微好気性鉄酸化細菌の分離と特性の解明

    Grant number:G-2021-1-004  2021.4 - 2023.3

    公益財団法人 発酵研究所  発酵研究所2021年度一般研究助成 

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    Authorship:Principal investigator  Grant type:Competitive

  2. 水田土壌の微好気性鉄酸化細菌の特性および生態に関する研究

    2015.4 - 2017.3

    発酵研究所平成27年度一般研究助成 

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    Grant type:Competitive

  3. 水田土壌の生物的鉄酸化機構の解明に向けた新奇微好気性鉄酸化菌に関する研究

    2013.4 - 2014.3

    国際科学技術財団2013年度助成 

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    Grant type:Competitive

KAKENHI (Grants-in-Aid for Scientific Research) 10

  1. 水稲に連作障害が生じない本当の理由は何か:根圏で土壌病原菌を抑止する機作の探索

    Grant number:22K19132  2022.6 - 2025.3

    科学研究費助成事業  挑戦的研究(萌芽)

    浅川 晋, 村瀬 潤, 渡邉 健史

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    Authorship:Coinvestigator(s) 

    湛水下で栽培されるイネ(水稲)には土壌病原菌による連作障害が起きない。従来,湛水で生じる土壌の還元・嫌気状態により好気性の土壌病原菌の活動が抑制されることがその原因とされてきたが,イネと同様に湛水下で栽培されるレンコンやクワイにはフザリウム等の好気性糸状菌による連作障害が起きるため,他に原因があると思われる。イネの根圏では地上部より送られる酸素が根から漏出し酸化的となる。このようなイネの根圏で活発化する(1)原生生物の捕食作用,(2)根周囲の酸化還元境界層における二価鉄の酸化反応によるラジカル生成,(3)非病原性の細菌・糸状菌群集の増殖が土壌病原菌を抑止していると想定し,その機作を探る。
    湛水下で栽培されるイネ(水稲)には土壌病原菌による連作障害が起きない。従来,湛水で生じる土壌の還元・嫌気状態により好気性の土壌病原菌の活動が抑制されることがその原因とされてきたが,水稲と同様に湛水下で栽培されるレンコン,クワイにはフザリウム等による連作障害が起きるため,他に原因があると思われる。本研究では,地上部より送られる酸素が根から漏出し,酸化的となるイネの根圏で活発化する微生物活動と生化学反応が土壌病原菌に対する抑止性に関与していると想定する。水稲根圏において,優占して生息する原生生物の捕食作用,根周囲の酸化還元境界層の鉄酸化反応,根からの酸素と有機物で増殖する細菌・糸状菌群集に注目し,水稲が土壌病原菌に対し抑止性を発揮している機作を探ることを目的とする。
    まず、実験に供試する病原菌の選定を行った。本研究ではフザリウム属菌を対象として用いることを想定している。これまで、レンコンやクワイに対して病原性を示すことが知られていたFusarium communeの菌株がイネ(インディカ種)に対しても根腐れや地上部の萎凋を引き起こすことを2021年にマレーシアの研究者が報告した。そこで、日本の水田土壌等より分離されたF. commune菌株を国内の微生物保存機関およびフザリウムの研究を行っている研究室から分譲あるいは譲受し、ジャポニカ種の日本晴の実生苗に接種し、病原性を示すかどうか確認した。供試した6菌株の全てについて、根の伸長抑制と褐変が生じることが確認でき、いずれの菌株もイネに対し病徴を示した。また、病原性の程度には菌株間で差が見られた。以上より、これらのF. commune株を水稲根に病徴を起こす病原菌として今後の実験に供試できることが明らかになった。
    本研究ではフザリウム属菌を水稲に対する病原菌として用いることを想定していた。これまでイネの根に明確な病徴を生じるフザリウム属菌は国内では知られていなかった。さらに、国内で最も多くのフザリウム属菌が寄託されている微生物保存機関のそれぞれの菌株の記載を調査したが、根に対する病原性を明記している寄託株はなかった。このような状況下で、レンコンやクワイに対して病原性を示すことが知られていたFusarium communeの菌株がイネ(インディカ種)に対しても根腐れや地上部の萎凋を引き起こすことが報告された。そこで、微生物保存機関に寄託されているフザリウム菌株の記載を再度チェックし、日本の水田土壌より分離されたF. commune菌株を選抜した。これまでの研究により、F. communeの菌株がジャポニカ種のイネの根に病徴を生じることを明らかにでき、供試する菌株候補の準備を整えることができた。以上より、おおむね順調に研究が進展していると考えている。
    水稲が土壌病原菌に対し抑止性を発揮している機作を探るため、今回得られた研究結果に基づき、イネの根に対する病原性の程度が異なる複数のF. communeの菌株を用いて以下の3つの観点から解析を進める予定である。原生生物による捕食作用については、イネ根圏より分離された原生生物株がF. commune株を捕食するかを調査する。根圏での鉄酸化反応による病原菌の抑止作用については、化学的および生物的鉄酸化反応に伴うヒドロキシラジカルの発生の確認とF. commune株に対する生育抑制作用を調査する。根圏に生息する微生物(細菌・糸状菌)による抑止作用については、圃場において湛水水田条件および落水畑条件でイネを栽培し、それぞれのイネから調製した根圏土壌試料について、フザリウム共培養法を用いてF. commune株に対する抑止作用の調査を行う。

  2. 水田土壌の生物的鉄酸化反応ー微好気性鉄酸化細菌の潜在的役割の評価

    Grant number:21K05326  2021.4 - 2024.3

    科学研究費助成事業  基盤研究(C)

    渡邉 健史

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    Authorship:Principal investigator 

    Grant amount:\4290000 ( Direct Cost: \3300000 、 Indirect Cost:\990000 )

    水田土壌中の鉄の酸化還元反応は、土壌中の物質代謝に大きく影響する重要な反応であるが、これまで鉄酸化反応については非生物的な反応が主体と考えられてきた。しかし、近年、Gallionellaceae科の微好気性鉄酸化細菌(以下、鉄酸化細菌)が土壌中の鉄酸化反応に深く関わることが明らかにされた。本研究では、鉄酸化細菌株の鉄酸化活性と水田土壌中での鉄酸化反応に伴う鉄酸化細菌数の変化から、土壌中での鉄酸化ポテンシャルを評価する。また、酸化された鉄と一緒に共沈した細胞などの易分解性有機物が、水田土壌の可給態窒素源の一部を担う可能性を探る。以上より水田土壌中での鉄酸化細菌の潜在的な役割を明らかにする。
    本研究では、Gallionellaceae科微好気性鉄酸化細菌(以下、微好気性鉄酸化細菌)の分離菌株を用いた培養実験による鉄酸化活性の評価と、室内での土壌培養実験による微好気性鉄酸化細菌の動態の解析から、水田土壌での微好気性鉄酸化細菌の鉄酸化ポテンシャルを推定することを目指す。本年度は、昨年度検討した室内での土壌培養実験を引き続き行い、湛水水田土壌を落水したときの微好気性鉄酸化細菌群集の動態を解析した。また、微好気性鉄酸化細菌分離株を用いて、鉄酸化活性を測定する予備実験を行った。
    水田土壌に粉末状にした稲わらを混合し、ガラスシリンジを用いて30℃、暗所で4週間湛水培養した。その後、培養温度を12℃、30℃、37℃に変更して下方より排水することによって落水状態とし、土壌中の活性2価鉄量を経時的に測定した。その結果、湛水培養により活性2価鉄量は乾土1gあたり2.5 mgまで増加した。一方、落水後は、2週間経過してもほとんど減少しないか、わずかに減少したのみであった。落水後の微好気性鉄酸化細菌群集の動態を16S rDNAを対象とした定量PCRにより解析した結果、16S rDNAコピー数は落水後5日(30、37℃)、または17日(12℃)の間に10-90倍増加し、低い温度ほど増加率が大きかった。以上より、微好気性鉄酸化細菌群集は、落水後、活性2価鉄量の変化が少ない短期間で活発に増殖し、その応答は温度によって異なることが明らかとなった。
    また、水田より分離した微好気性鉄酸化細菌を対象に、液体培地中での鉄酸化活性を測定することを試みた。結果、十分な細胞数を測定に用いることで非生物的な鉄酸化反応を上回る鉄酸化活性を測定することができることが明らかになった。
    当初の計画では、微好気性鉄酸化細菌分離株の鉄酸化活性を測定し、土壌培養実験の結果と併せて土壌中における微好気性鉄酸化細菌の鉄酸化ポテンシャルを推定することを計画していたが、分離菌株の鉄酸化活性の測定が予備実験までとなり、予定していた計画を全て完了することができなかった。
    現在、分離菌株の鉄酸化活性の測定途中であり、活性測定を引き続き行う。その結果と土壌培養実験の結果を併せて、水田土壌落水時の微好気性鉄酸化細菌の鉄酸化ポテンシャルを推定する。
    また、当初の計画の一つである、落水時の鉄酸化反応により形成した非晶質鉄酸化物量とそこに含まれる窒素やリン量、また土壌中の微好気性鉄酸化細菌群集の動態との関係を探り、水田土壌における鉄の酸化還元やそれに伴う物質動態における微好気性鉄酸化細菌の潜在的な役割を明らかにする。

  3. Long-term examination of microbial community dynamics in paddy-upland rotational field to elucidate the stability of microbial community in paddy field soil

    Grant number:18H02114  2018.4 - 2023.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    ASAKAWA Susumu

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    Microbial communities in paddy field soil exhibit stable and robust traits though the field is managed with annual submergence and drainage. To elucidate the mechanisms involved in the traits of the communities, dynamics of soil microbial community was investigated for 11 years in a paddy-upland rotational field with 3-year intervals of upland conversion and return to paddy field. The abundance of microbial community, irrespective of aerobes or anaerobes, decreased after upland conversion and increased after returning to paddy field in many cases. The composition of bacterial community in the upland periods was greatly different from that in a continuous paddy field (control), but the similarity in the composition between the two fields tended to increase as the period after returning to paddy field increased from 1 to 3 years. Annual cultivation of paddy rice under flooded conditions may create and maintain the stability and robustness of the microbial community in paddy field soil.

  4. Characteristics and community dynamics of microaerophilic iron-oxidizing bacteria in paddy field soil

    Grant number:18K05372  2018.4 - 2022.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    Watanabe Takeshi

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    Authorship:Principal investigator 

    Grant amount:\4420000 ( Direct Cost: \3400000 、 Indirect Cost:\1020000 )

    The characteristics of Fe oxides formed during the growth of Gallionella-related Fe-oxidizing bacteria and dynamics of Gallionella-related Fe-oxidizing bacterial community in paddy field soils were studied to understand the role and significance of them in the Fe oxidizing process in paddy field soil. The microscopic observations and XAFS analysis showed that Gallionella-related Fe-oxidizing bacteria produced ferrihydrite-predominated iron oxides during the growth, some of which produce dendrite structures of Fe oxides. The community analysis showed that the dynamics of Gallionella-related Fe-oxidizing bacterial community changed depending on the redox cycle of Fe in paddy soils. These results suggested that Gallionella-related Fe-oxidizing bacteria are involved in the Fe-oxidizing process in paddy field soil, and their behavior may influence the dynamics of not only Fe but also other elements in the soil.

  5. Characterization of iron-reducing and iron-oxidizing microorganisms in rice rhizosphere under iron-toxic conditions in inland valley paddy fields of West Africa

    Grant number:17H04619  2017.4 - 2021.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    ASAKAWA Susumu

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    Iron toxicity in rice caused by higher contents of ferrous iron generated under anoxic conditions brings about severe deterioration of paddy rice production in some areas of the tropics. This research project focused on the microorganisms involved in the redox cycle of iron in the rhizosphere of rice under iron toxic conditions. Microbial community structures of iron reducers and oxidizers were investigated in the bulk and rhizosphere soil and root samples of rice plants with and without the symptoms of iron toxicity in an iron-toxic paddy field in the Kou valley, Burkina Faso, West Africa. The characteristics of the communities of iron reducers and oxidizers were compared with those in a paddy field in Japan without iron toxicity. Irrespective of the symptoms of iron toxicity in rice, a clear predominance of iron reducers over iron oxidizers was revealed in the rice rhizosphere in the iron-toxic paddy field, which corresponded well to the higher contents of ferrous iron in the soil.

  6. Effects of fluctuation of redox potentials on microbial dynamics and gas metabolisms of wetland soils

    Grant number:16H05056  2016.4 - 2019.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    Murase Jun, HAYASHI Kentaro, TOKIDA Takeshi

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    Focusing on paddy soil, we analyzed the fluctuation of the redox boundary layer and the response of the microbial community. In the paddy soil surface layer, the dissolved oxygen concentration showed extremely large fluctuation from supersaturation to complete anoxia. The oxidation-reduction potential also changed dramatically in the paddy rice rhizosphere according to the growth of rice. Protozoa living in paddy soils are considered to play an important role as a predator in the redox boundary layer, as there are groups with suitable oxygen concentration or redox potential and a group adaptable to a wide range of oxygen concentrations. Although methane oxidation bacteria require oxygen for methane oxidation, they were able to maintain their activity for a long time even under anaerobic conditions. Microaerobic iron-oxidizing bacteria act in the surface.

  7. 水田土壌のメタン生成過程における硫酸還元菌群集の動態の解明

    2014.4 - 2017.3

    科学研究費補助金  基盤研究(C)

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    Authorship:Principal investigator 

  8. 水稲根圏におけるメタンの動態に関わる微生物食物連鎖の構造と機能の解析

    2013.4 - 2015.3

    科学研究費補助金  基盤研究(B)

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    Authorship:Coinvestigator(s) 

  9. ヒドロゲナーゼ遺伝子の解析による水田土壌中の水素生成菌群集の生態解明

    2012.4 - 2014.3

    科学研究費補助金  若手研究(B)

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    Authorship:Principal investigator 

  10. 節水管理水田土壌中のメタン生成古細菌の群集構造解析によるメタン放出抑制機構の解明

    2010.4 - 2012.3

    科学研究費補助金  若手研究(B)

    渡邉 健史

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    Authorship:Principal investigator 

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Teaching Experience (On-campus) 23

  1. 微生物生態学

    2023

  2. Microbiology 2

    2022

  3. Basics of Bioagricultural Sciences

    2022

  4. Advanced Soil Science

    2022

  5. 応用生命科学実験実習1

    2022

  6. 専門セミナー

    2022

  7. 専門セミナー

    2021

  8. 微生物学の科学

    2021

  9. 応用生命科学実験実習1

    2021

  10. 応用生命科学実験実習1

    2020

  11. Advanced Soil Science

    2020

  12. Basics of Agricultural Sciences

    2020

  13. Science of Microorganisms

    2020

  14. 生命農学演習2

    2020

  15. 生命農学演習1

    2020

  16. 修士論文研究4

    2020

  17. 修士論文研究3

    2020

  18. 修士論文研究2

    2020

  19. 修士論文研究1

    2020

  20. 生命農学演習4

    2020

  21. 生命農学演習3

    2020

  22. 専門セミナー

    2020

  23. 卒業論文研究

    2020

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Teaching Experience (Off-campus) 1

  1. 化学実験

    2005.4 - 2006.3 学校法人 名城大学)

 

Social Contribution 1

  1. 「総合学習の時間」

    Role(s):Lecturer

    岡崎北高校、日本土壌肥料学会中部支部(共催)  豊田市自然観察の森  2007

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    Audience: High school students

    Type:Visiting lecture

    土壌に関する講義・観察・実験