Updated on 2022/04/16

写真a

 
KIBA Takatoshi
 
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

Degree 1

  1. 博士(農学) ( 2003.3   名古屋大学 ) 

Research Interests 5

  1. サイトカイニン

  2. 植物ホルモン

  3. 栄養不足

  4. 環境

  5. 植物

Research Areas 2

  1. Life Science / Plant molecular biology and physiology

  2. Life Science / Plant nutrition and soil science

Current Research Project and SDGs 2

  1. 植物ホルモンを介したボディープラン制御機構の解明

  2. 植物における窒素飢餓応答の分子基盤

Research History 12

  1. 理化学研究所   環境資源科学研究センター・合成ゲノミクス研究グループ   客員研究員

    2018.4

  2. The University of Tokyo

    2018.4 - 2021.3

  3. 理化学研究所   バトンゾーン研究推進プログラム・植物新育種技術研究チーム   客員主幹研究員

    2018.4 - 2021.3

  4. Nagoya University   Associate professor

    2018.3

  5. The University of Tokyo   Biotechnology Research Center

    2017.4 - 2018.3

  6. RIKEN

    2016.4 - 2018.3

  7. RIKEN   CSRS   Researcher

    2014.4 - 2018.3

  8. 理化学研究所   環境資源科学研究センター   研究員

    2013.4 - 2018.3

  9. 理化学研究所   植物科学研究センター   研究員

    2008.10 - 2013.3

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    Country:Japan

  10. The Rockefeller University   研究員

    2004.7 - 2008.9

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    Country:United States

  11. Nagoya University   Researcher

    2003.4 - 2004.7

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    Country:Japan

  12. Nagoya University

    2000.4 - 2003.3

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    Country:Japan

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Education 3

  1. Nagoya University

    2000.4 - 2003.3

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    Country: Japan

  2. Nagoya University

    1998.4 - 2000.3

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    Country: Japan

  3. Nagoya University   Faculty of Agriculture

    1994.4 - 1998.3

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    Country: Japan

Professional Memberships 2

  1. 日本植物生理学会

  2. 日本土壌肥料学会

Awards 2

  1. Highly Cited Researchers 2021

    2021.10   Clarivate Analytics  

  2. Plant and Cell Physiology Top cited paper award (Review) 2020

    2020.3   日本植物生理学会  

    Takatoshi Kiba, Anne Krapp

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

 

Papers 45

  1. Excessive ammonium assimilation by plastidic glutamine synthetase causes ammonium toxicity in Arabidopsis thaliana. Reviewed International coauthorship International journal

    Takushi Hachiya, Jun Inaba, Mayumi Wakazaki, Mayuko Sato, Kiminori Toyooka, Atsuko Miyagi, Maki Kawai-Yamada, Daisuke Sugiura, Tsuyoshi Nakagawa, Takatoshi Kiba, Alain Gojon, Hitoshi Sakakibara

    Nature communications   Vol. 12 ( 1 ) page: 4944 - 4944   2021.8

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

    Plants use nitrate, ammonium, and organic nitrogen in the soil as nitrogen sources. Since the elevated CO2 environment predicted for the near future will reduce nitrate utilization by C3 species, ammonium is attracting great interest. However, abundant ammonium nutrition impairs growth, i.e., ammonium toxicity, the primary cause of which remains to be determined. Here, we show that ammonium assimilation by GLUTAMINE SYNTHETASE 2 (GLN2) localized in the plastid rather than ammonium accumulation is a primary cause for toxicity, which challenges the textbook knowledge. With exposure to toxic levels of ammonium, the shoot GLN2 reaction produced an abundance of protons within cells, thereby elevating shoot acidity and stimulating expression of acidic stress-responsive genes. Application of an alkaline ammonia solution to the ammonium medium efficiently alleviated the ammonium toxicity with a concomitant reduction in shoot acidity. Consequently, we conclude that a primary cause of ammonium toxicity is acidic stress.

    DOI: 10.1038/s41467-021-25238-7

    Web of Science

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  2. Low nitrogen conditions accelerate flowering by modulating the phosphorylation state of FLOWERING BHLH 4 in Arabidopsis. Reviewed International journal

    Miho Sanagi, Shoki Aoyama, Akio Kubo, Yu Lu, Yasutake Sato, Shogo Ito, Mitsutomo Abe, Nobutaka Mitsuda, Masaru Ohme-Takagi, Takatoshi Kiba, Hirofumi Nakagami, Filip Rolland, Junji Yamaguchi, Takato Imaizumi, Takeo Sato

    Proceedings of the National Academy of Sciences of the United States of America   Vol. 118 ( 19 )   2021.5

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

    Nitrogen (N) is an essential nutrient that affects multiple plant developmental processes, including flowering. As flowering requires resources to develop sink tissues for reproduction, nutrient availability is tightly linked to this process. Low N levels accelerate floral transition; however, the molecular mechanisms underlying this response are not well understood. Here, we identify the FLOWERING BHLH 4 (FBH4) transcription factor as a key regulator of N-responsive flowering in Arabidopsis Low N-induced early flowering is compromised in fbh quadruple mutants. We found that FBH4 is a highly phosphorylated protein and that FBH4 phosphorylation levels decrease under low N conditions. In addition, decreased phosphorylation promotes FBH4 nuclear localization and transcriptional activation of the direct target CONSTANS (CO) and downstream florigen FLOWERING LOCUS T (FT) genes. Moreover, we demonstrate that the evolutionarily conserved cellular fuel sensor SNF1-RELATED KINASE 1 (SnRK1), whose kinase activity is down-regulated under low N conditions, directly phosphorylates FBH4. SnRK1 negatively regulates CO and FT transcript levels under high N conditions. Together, these results reveal a mechanism by which N levels may fine-tune FBH4 nuclear localization by adjusting the phosphorylation state to modulate flowering time. In addition to its role in flowering regulation, we also showed that FBH4 was involved in low N-induced up-regulation of nutrient recycling and remobilization-related gene expression. Thus, our findings provide insight into N-responsive growth phase transitions and optimization of plant fitness under nutrient-limited conditions.

    DOI: 10.1073/pnas.2022942118

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  3. Mechanism of nitrogen transport in plants Invited

    Kiba Takatoshi, Konishi Mineko, Yanagisawa Shuichi

    Japanese Journal of Soil Science and Plant Nutrition   Vol. 92 ( 2 ) page: 76 - 91   2021.4

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    Authorship:Lead author   Language:Japanese   Publisher:Japanese Society of Soil Science and Plant Nutrition  

    DOI: 10.20710/dojo.92.2_76

    CiNii Research

  4. NIGT1 family proteins exhibit dual mode DNA recognition to regulate nutrient response-associated genes in Arabidopsis. Reviewed

    Ueda Y, Nosaki S, Sakuraba Y, Miyakawa T, Kiba T, Tanokura M, Yanagisawa S

    PLoS genetics   Vol. 16 ( 11 ) page: e1009197   2020.11

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

    DOI: 10.1371/journal.pgen.1009197

    PubMed

  5. A genome resource for green millet Setaria viridis enables discovery of agronomically valuable loci Reviewed International coauthorship

    Mamidi Sujan, Healey Adam, Huang Pu, Grimwood Jane, Jenkins Jerry, Barry Kerrie, Sreedasyam Avinash, Shu Shengqiang, Lovell John T., Feldman Maximilian, Wu Jinxia, Yu Yunqing, Chen Cindy, Johnson Jenifer, Sakakibara Hitoshi, Kiba Takatoshi, Sakurai Tetsuya, Tavares Rachel, Nusinow Dmitri A., Baxter Ivan, Schmutz Jeremy, Brutnell Thomas P., Kellogg Elizabeth A.

    NATURE BIOTECHNOLOGY   Vol. 38 ( 10 ) page: 1203-+   2020.10

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

    DOI: 10.1038/s41587-020-0681-2

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  6. Nitrogen and Phosphorus interactions in plants: from agronomic to physiological and molecular insights Invited Reviewed International coauthorship

    Krouk Gabriel, Kiba Takatoshi

    CURRENT OPINION IN PLANT BIOLOGY   Vol. 57   page: 104 - 109   2020.10

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    Authorship:Lead author, Corresponding author   Language:English   Publisher:Current Opinion in Plant Biology  

    DOI: 10.1016/j.pbi.2020.07.002

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  7. Harnessing symbiotic plant-fungus interactions to unleash hidden forces from extreme plant ecosystems Reviewed International coauthorship

    Perez-Alonso Marta-Marina, Guerrero-Galan Carmen, Scholz Sandra S., Kiba Takatoshi, Sakakibara Hitoshi, Ludwig-Mueller Jutta, Krapp Anne, Oelmueller Ralf, Vicente-Carbajosa Jesus, Pollmann Stephan

    JOURNAL OF EXPERIMENTAL BOTANY   Vol. 71 ( 13 ) page: 3865-3877   2020.6

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

    DOI: 10.1093/jxb/eraa040

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  8. Flowering time control in rice by introducing Arabidopsis clock-associated PSEUDO-RESPONSE REGULATOR 5 Reviewed

    Nakamichi Norihito, Kudo Toru, Makita Nobue, Kiba Takatoshi, Kinoshita Toshinori, Sakakibara Hitoshi

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY   Vol. 84 ( 5 ) page: 970-979   2020.5

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

    DOI: 10.1080/09168451.2020.1719822

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  9. Nitrate-inducible NIGT1 proteins modulate phosphate uptake and starvation signalling via transcriptional regulation of SPX genes Reviewed

    Ueda Yoshiaki, Kiba Takatoshi, Yanagisawa Shuichi

    PLANT JOURNAL   Vol. 102 ( 3 ) page: 448-466   2020.5

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

    DOI: 10.1111/tpj.14637

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  10. Genome Sequence of Striga asiatica Provides Insight into the Evolution of Plant Parasitism

    Yoshida Satoko, Kim Seungill, Wafula Eric K., Tanskanen Jaakko, Kim Yong-Min, Honaas Loren, Yang Zhenzhen, Spallek Thomas, Conn Caitlin E., Ichihashi Yasunori, Cheong Kyeongchae, Cui Songkui, Der Joshua P., Gundlach Heidrun, Jiao Yuannian, Hori Chiaki, Ishida Juliane K., Kasahara Hiroyuki, Kiba Takatoshi, Kim Myung-Shin, Koo Namjin, Laohavisit Anuphon, Lee Yong-Hwan, Lumba Shelley, McCourt Peter, Mortimer Jenny C., Mutuku J. Musembi, Nomura Takahito, Sasaki-Sekimoto Yuko, Seto Yoshiya, Wang Yu, Wakatake Takanori, Sakakibara Hitoshi, Demura Taku, Yamaguchi Shinjiro, Yoneyama Koichi, Manabe Ri-ichiroh, Nelson David C., Schulman Alan H., Timko Michael P., DePamphilis Claude W., Choi Doil, Shirasu Ken

    CURRENT BIOLOGY   Vol. 29 ( 18 ) page: 3041-+   2019.9

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

    DOI: 10.1016/j.cub.2019.07.086

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  11. Sugar-induced de novo cytokinin biosynthesis contributes to Arabidopsis growth under elevated CO2

    Kiba Takatoshi, Takebayashi Yumiko, Kojima Mikiko, Sakakibara Hitoshi

    SCIENTIFIC REPORTS   Vol. 9 ( 1 ) page: 7765   2019.5

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  12. An efficient DNA- and selectable-marker-free genome-editing system using zygotes in rice.

    Toda E, Koiso N, Takebayashi A, Ichikawa M, Kiba T, Osakabe K, Osakabe Y, Sakakibara H, Kato N, Okamoto T

    Nature plants   Vol. 5 ( 4 ) page: 363-368   2019.4

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

    DOI: 10.1038/s41477-019-0386-z

    PubMed

  13. Chromatin-mediated feed-forward auxin biosynthesis in floral meristem determinacy

    Yamaguchi Nobutoshi, Huang Jiangbo, Tatsumi Yoshitaka, Abe Masato, Sugano Shigeo S., Kojima Mikiko, Takebayashi Yumiko, Kiba Takatoshi, Yokoyama Ryusuke, Nishitani Kazuhiko, Sakakibara Hitoshi, Ito Toshiro

    NATURE COMMUNICATIONS   Vol. 9 ( 1 ) page: 5290   2018.12

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

    DOI: 10.1038/s41467-018-07763-0

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  14. International Symposium on Long-Distance Signaling in Plants

    Kiba Takatoshi

    PLANT AND CELL PHYSIOLOGY   Vol. 59 ( 9 ) page: 1697-1699   2018.9

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

    DOI: 10.1093/pcp/pcy151

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  15. SUPERMAN regulates floral whorl boundaries through control of auxin biosynthesis.

    Xu Y, Prunet N, Gan ES, Wang Y, Stewart D, Wellmer F, Huang J, Yamaguchi N, Tatsumi Y, Kojima M, Kiba T, Sakakibara H, Jack TP, Meyerowitz EM, Ito T

    The EMBO journal   Vol. 37 ( 11 )   2018.6

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  16. A NIGT1-centred transcriptional cascade regulates nitrate signalling and incorporates phosphorus starvation signals in Arabidopsis.

    Maeda Y, Konishi M, Kiba T, Sakuraba Y, Sawaki N, Kurai T, Ueda Y, Sakakibara H, Yanagisawa S

    Nature communications   Vol. 9 ( 1 ) page: 1376   2018.4

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

    DOI: 10.1038/s41467-018-03832-6

    PubMed

  17. Repression of Nitrogen Starvation Responses by Members of the Arabidopsis GARP-Type Transcription Factor NIGT1/HRS1 Subfamily

    Kiba Takatoshi, Inaba Jun, Kudo Toru, Ueda Nanae, Konishi Mineko, Mitsuda Nobutaka, Takiguchi Yuko, Kondou Youichi, Yoshizumi Takeshi, Ohme-Takagi Masaru, Matsui Minami, Yano Kentaro, Yanagisawa Shuichi, Sakakibara Hitoshi

    PLANT CELL   Vol. 30 ( 4 ) page: 925 - 945   2018.4

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  18. Systemic transport of trans-zeatin and its precursor have differing roles in Arabidopsis shoots

    Osugi Asami, Kojima Mikiko, Takebayashi Yumiko, Ueda Nanae, Kiba Takatoshi, Sakakibara Hitoshi

    NATURE PLANTS   Vol. 3 ( 8 ) page: 17112   2017.8

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  19. Interspecies hormonal control of host root morphology by parasitic plants Reviewed

    Spallek Thomas, Melnyk Charles W., Wakatake Takanori, Zhang Jing, Sakamoto Yuki, Kiba Takatoshi, Yoshida Satoko, Matsunaga Sachihiro, Sakakibara Hitoshi, Shirasu Ken

    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA   Vol. 114 ( 20 ) page: 5283-5288   2017.5

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

    DOI: 10.1073/pnas.1619078114

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  20. Kinetics of the LOV domain of ZEITLUPE determine its circadian function in Arabidopsis Reviewed

    Pudasaini Ashutosh, Shim Jae Sung, Song Young Hun, Shi Hua, Kiba Takatoshi, Somers David E., Imaizumi Takato, Zoltowski Brian D.

    ELIFE   Vol. 6   2017.2

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

    DOI: 10.7554/eLife.21646

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  21. Improvement of Arabidopsis Biomass and Cold, Drought and Salinity Stress Tolerance by Modified Circadian Clock-Associated PSEUDO-RESPONSE REGULATORs Reviewed

    Nakamichi Norihito, Takao Saori, Kudo Toru, Kiba Takatoshi, Wang Yin, Kinoshita Toshinori, Sakakibara Hitoshi

    PLANT AND CELL PHYSIOLOGY   Vol. 57 ( 5 ) page: 1085-1097   2016.5

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

    DOI: 10.1093/pcp/pcw057

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  22. Plant Nitrogen Acquisition Under Low Availability: Regulation of Uptake and Root Architecture Reviewed

    Kiba Takatoshi, Krapp Anne

    PLANT AND CELL PHYSIOLOGY   Vol. 57 ( 4 ) page: 707-714   2016.4

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

    DOI: 10.1093/pcp/pcw052

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  23. Assessing Protein Stability Under Different Light and Circadian Conditions Reviewed

    Kiba Takatoshi, Henriques Rossana

    ENVIRONMENTAL RESPONSES IN PLANTS: METHODS AND PROTOCOLS   Vol. 1398   page: 141-152   2016

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

    DOI: 10.1007/978-1-4939-3356-3_13

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  24. The Arabidopsis nitrate transporter NRT2.5 plays a role in nitrate acquisition and remobilization in nitrogen-starved plants Reviewed

    Lezhneva Lina, Kiba Takatoshi, Feria-Bourrellier Ana-Belen, Lafouge Florence, Boutet-Mercey Stephanie, Zoufan Parzhak, Sakakibara Hitoshi, Daniel-Vedele Francoise, Krapp Anne

    PLANT JOURNAL   Vol. 80 ( 2 ) page: 230-241   2014.10

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    DOI: 10.1111/tpj.12626

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  25. Arabidopsis ABCG14 is essential for the root-to-shoot translocation of cytokinin Reviewed

    Ko Donghwi, Kang Joohyun, Kiba Takatoshi, Park Jiyoung, Kojima Mikiko, Do Jihye, Kim Kyung Yoon, Kwon Mi, Endler Anne, Song Won-Yong, Martinoia Enrico, Sakakibara Hitoshi, Lee Youngsook

    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA   Vol. 111 ( 19 ) page: 7150-7155   2014.5

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    DOI: 10.1073/pnas.1321519111

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  26. Effects of High CO2 on Growth and Metabolism of Arabidopsis Seedlings During Growth with a Constantly Limited Supply of Nitrogen Reviewed

    Takatani Nobuyuki, Ito Takuro, Kiba Takatoshi, Mori Marie, Miyamoto Tetsuro, Maeda Shin-ichi, Omata Tatsuo

    PLANT AND CELL PHYSIOLOGY   Vol. 55 ( 2 ) page: 281-292   2014.2

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

    DOI: 10.1093/pcp/pct186

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  27. Side-Chain Modification of Cytokinins Controls Shoot Growth in Arabidopsis Reviewed

    Kiba Takatoshi, Takei Kentaro, Kojima Mikiko, Sakakibara Hitoshi

    DEVELOPMENTAL CELL   Vol. 27 ( 4 ) page: 452-461   2013.11

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

    DOI: 10.1016/j.devcel.2013.10.004

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  28. Transcriptional repressor PRR5 directly regulates clock-output pathways Reviewed

    Nakamichi Norihito, Kiba Takatoshi, Kamioka Mari, Suzuki Takamasa, Yamashino Takafumi, Higashiyama Tetsuya, Sakakibara Hitoshi, Mizuno Takeshi

    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA   Vol. 109 ( 42 ) page: 17123-17128   2012.10

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

    DOI: 10.1073/pnas.1205156109

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  29. The response and recovery of the Arabidopsis thaliana transcriptome to phosphate starvation Reviewed

    Woo Jongchan, MacPherson Cameron Ross, Liu Jun, Wang Huan, Kiba Takatoshi, Hannah Matthew A., Wang Xiu-Jie, Bajic Vladimir B., Chua Nam-Hai

    BMC PLANT BIOLOGY   Vol. 12   2012.5

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

    DOI: 10.1186/1471-2229-12-62

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  30. Arabidopsis lonely guy (LOG) multiple mutants reveal a central role of the LOG-dependent pathway in cytokinin activation Reviewed

    Tokunaga Hiroki, Kojima Mikiko, Kuroha Takeshi, Ishida Takashi, Sugimoto Keiko, Kiba Takatoshi, Sakakibara Hitoshi

    PLANT JOURNAL   Vol. 69 ( 2 ) page: 355-365   2012.1

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    DOI: 10.1111/j.1365-313X.2011.04795.x

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  31. The Arabidopsis Nitrate Transporter NRT2.4 Plays a Double Role in Roots and Shoots of Nitrogen-Straved Plants Reviewed

    Kiba Takatoshi, Feria-Bourrellier Ana-Belen, Lafouge Florence, Lezhneva Lina, Boutet-Mercey Stephanie, Orsel Mathilde, Brehaut Virginie, Miller Anthony, Daniel-Vedele Francoise, Sakakibara Hitoshi, Krapp Anne

    PLANT CELL   Vol. 24 ( 1 ) page: 245-258   2012.1

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

    DOI: 10.1105/tpc.111.092221

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  32. Deep sequencing of small RNAs specifically associated with Arabidopsis AGO1 and AGO4 uncovers new AGO functions Reviewed

    Wang Huan, Zhang Xiuren, Liu Jun, Kiba Takatoshi, Woo Jongchan, Ojo Tolulope, Hafner Markus, Tuschl Thomas, Chua Nam-Hai, Wang Xiu-Jie

    PLANT JOURNAL   Vol. 67 ( 2 ) page: 292-304   2011.7

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    DOI: 10.1111/j.1365-313X.2011.04594.x

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  33. Hormonal control of nitrogen acquisition: roles of auxin, abscisic acid, and cytokinin Reviewed

    Kiba Takatoshi, Kudo Toru, Kojima Mikiko, Sakakibara Hitoshi

    JOURNAL OF EXPERIMENTAL BOTANY   Vol. 62 ( 4 ) page: 1399-1409   2011.2

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

    DOI: 10.1093/jxb/erq410

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  34. F-Box Proteins FKF1 and LKP2 Act in Concert with ZEITLUPE to Control Arabidopsis Clock Progression Reviewed

    Baudry Antoine, Ito Shogo, Song Young Hun, Strait Alexander A., Kiba Takatoshi, Lu Sheen, Henriques Rossana, Pruneda-Paz Jose L., Chua Nam-Hai, Tobin Elaine M., Kay Steve A., Imaizumi Takato

    PLANT CELL   Vol. 22 ( 3 ) page: 606-622   2010.3

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    DOI: 10.1105/tpc.109.072843

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  35. PSEUDO-RESPONSE REGULATORS 9, 7, and 5 Are Transcriptional Repressors in the Arabidopsis Circadian Clock Reviewed

    Nakamichi Norihito, Kiba Takatoshi, Henriques Rossana, Mizuno Takeshi, Chua Nam-Hai, Sakakibara Hitoshi

    PLANT CELL   Vol. 22 ( 3 ) page: 594-605   2010.3

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    DOI: 10.1105/tpc.109.072892

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  36. Metabolism and Long-distance Translocation of Cytokinins Reviewed

    Kudo Toru, Kiba Takatoshi, Sakakibara Hitoshi

    JOURNAL OF INTEGRATIVE PLANT BIOLOGY   Vol. 52 ( 1 ) page: 53-60   2010.1

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

    DOI: 10.1111/j.1744-7909.2010.00898.x

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  37. A Small Subfamily of Arabidopsis RADIALIS-LIKE SANT/MYB Genes: A Link to HOOKLESS1-Mediated Signal Transduction during Early Morphogenesis Reviewed

    Hamaguchi Aya, Yamashino Takafumi, Koizumi Nobuya, Kiba Takatoshi, Kojima Mikiko, Sakakibara Hitoshi, Mizuno Takeshi

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY   Vol. 72 ( 10 ) page: 2687-2696   2008.10

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

    DOI: 10.1271/bbb.80348

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  38. The AtGenExpress hormone and chemical treatment data set: experimental design, data evaluation, model data analysis and data access Reviewed

    Goda Hideki, Sasaki Eriko, Akiyama Kenji, Maruyama-Nakashita Akiko, Nakabayashi Kazumi, Li Weiqiang, Ogawa Mikihiro, Yamauchi Yukika, Preston Jeremy, Aoki Ko, Kiba Takatoshi, Takatsuto Suguru, Fujioka Shozo, Asami Tadao, Nakano Takeshi, Kato Hisashi, Mizuno Takeshi, Sakakibara Hitoshi, Yamaguchi Shinjiro, Nambara Eiji, Kamiya Yuji, Takahashi Hideki, Hirai Masami Yokota, Sakurai Tetsuya, Shinozaki Kazuo, Saito Kazuki, Yoshida Shigeo, Shimada Yukihisa

    PLANT JOURNAL   Vol. 55 ( 3 ) page: 526-542   2008.8

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    DOI: 10.1111/j.1365-313X.2008.03510.x

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  39. Rhythmic and light-inducible appearance of clock-associated pseudo-response regulator protein PRR9 through programmed degradation in the dark in Arabidopsis thaliana (vol 48, pg 1644, 2007) Reviewed

    Ito Shogo, Nakamichi Norihito, Kiba Takatoshi, Yamashino Takafumi, Mizuno Takeshi

    PLANT AND CELL PHYSIOLOGY   Vol. 49 ( 1 ) page: 133-133   2008.1

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

    DOI: 10.1093/pcp/pcm169

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  40. Rhythmic and light-inducible appearance of clock-associated pseudo-response regulator protein PRR9 through programmed degradation in the dark in Arabidopsis thaliana Reviewed

    Ito Shogo, Nakamichi Norihito, Kiba Takatoshi, Yamashino Takafumi, Mizuno Takeshi

    PLANT AND CELL PHYSIOLOGY   Vol. 48 ( 11 ) page: 1644-1651   2007.11

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

    DOI: 10.1093/pcp/pcm122

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  41. Targeted degradation of PSEUDO-RESPONSE REGULATOR5 by an SCFZTL complex regulates clock function and photomorphogenesis in Arabidopsis thaliana Reviewed

    Kiba Takatoshi, Henriques Rossana, Sakakibara Hitoshi, Chua Nam-Hai

    PLANT CELL   Vol. 19 ( 8 ) page: 2516-2530   2007.8

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

    DOI: 10.1105/tpc.107.053033

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  42. Characterization of a unique GATA family gene that responds to both light and cytokinin in Arabidopsis thaliana Reviewed

    Naito Takahito, Kiba Takatoshi, Koizumi Nobuya, Yamashino Takafumi, Mizuno Takeshi

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY   Vol. 71 ( 6 ) page: 1557-1560   2007.6

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

    DOI: 10.1271/bbb.60692

    Web of Science

  43. A link between cytokinin and ASL9 (ASYMMETRIC LEAVES 2 LIKE 9) that belongs to the AS2/LOB (LATERAL ORGAN BOUNDARIES) family genes in Arabidopsis thaliana Reviewed

    Naito Takahito, Yamashino Takafumi, Kiba Takatoshi, Koizumi Nobuya, Kojima Mikiko, Sakakibara Hitoshi, Mizuno Takeshi

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY   Vol. 71 ( 5 ) page: 1269-1278   2007.5

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    DOI: 10.1271/bbb.60681

    Web of Science

  44. The occurrence of clock-associated and light-induced PRR9 pseudo-response regulator protein in Arabidopsis plants is diurnally oscillated and subjected to programmed-degradation in the dark Reviewed

    Ito Shogo, Nakamichi Norihito, Kiba Takatoshi, Matsushika Akinori, Fujimori Toru, Yamashino Takafami, Mizuno Takeshi

    PLANT AND CELL PHYSIOLOGY   Vol. 48   page: S151-S151   2007

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    Web of Science

  45. ZEITLUPE targets PSEUDO-RESPONSE REGULATOR 5 (PRR5) to 26S proteasome-dependent degradation Reviewed

    Kiba Takatoshi, Henriques Rossana, Sakakibara Hitoshi, Chua Nam-Hai

    PLANT AND CELL PHYSIOLOGY   Vol. 48   page: S187-S187   2007

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    Web of Science

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Presentations 4

  1. The physiological role of trans-zeatin-type cytokinins in rice

    Takatoshi Kiba

    2022.3.24 

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    Event date: 2022.3

    Language:English   Presentation type:Poster presentation  

  2. 植物ホルモン・サイトカイニンによる植物成長制御 〜側鎖修飾と長距離輸送の仕組みと役割〜 Invited

    木羽隆敏

    第255回遺伝子機能解析部門セミナー  2021.11.5  島根大学 研究・学術情報本部 総合科学研究支援センター 遺伝子機能解析部門

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    Event date: 2021.11

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

    Venue:島根大学  

  3. Identification of cis-regulatory elements that confers high expression

    2021.3.16 

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    Event date: 2021.3

    Language:English   Presentation type:Poster presentation  

  4. ABCG14を介した根から地上部へのサイトカイニン長距離輸送のメカニズム

    木羽隆敏、橋本祐典、小嶋美紀子、竹林裕美子、榊原均

    日本植物学会第84回大会  2020.9.19  日本植物学会

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    Event date: 2020.9

    Language:Japanese   Presentation type:Poster presentation  

    Venue:オンライン  

Research Project for Joint Research, Competitive Funding, etc. 1

  1. 低投入持続型農業に適した作物品種開発のための基盤研究

    2020.4 - 2021.3

    三島海雲記念財団 学術研究奨励金(研究助成) 

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    Grant type:Competitive

KAKENHI (Grants-in-Aid for Scientific Research) 8

  1. Nitrogen starvation response in a C4 model plant, Setaria viridis

    Grant number:20K21271  2020.7 - 2022.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Research (Exploratory)

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    Authorship:Principal investigator 

    Grant amount:\6370000 ( Direct Cost: \4900000 、 Indirect Cost:\1470000 )

  2. 植物における窒素飢餓応答の分子基盤

    Grant number:20H02888  2020.4 - 2024.3

    日本学術振興会  科学研究費助成事業  基盤研究(B)

    木羽 隆敏

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    Authorship:Principal investigator 

    Grant amount:\17290000 ( Direct Cost: \13300000 、 Indirect Cost:\3990000 )

    植物が自然環境でしばしば遭遇する比較的長期間に渡る窒素不足状態「窒素飢餓」をどのように感知・応答するのかについて、その分子メカニズムの理解は進んでいない。本申請研究では、シロイヌナズナにおいて申請者独自の窒素飢餓マーカーを用いた徹底的な新奇因子探索、新奇・既知因子の役割分担と因子間の遺伝的関係の明確化を通して、植物における窒素飢餓感知から出力に至る情報伝達の分子基盤を体系的に理解することを目標とする。また窒素飢餓応答制御メカニズムのイネとエノコログサにおける普遍性と多様性について調べ、窒素飢餓耐性や窒素低要求性作物など、低投入型持続的農業に適した優良品種の開発につながる知見を得ることも目指す。
    本年度は研究実施計画に従い、以下の①、②の2項目について研究を進めた。
    ①窒素飢餓応答制御に関わる新奇因子の探索:申請者ら独自の窒素飢餓マーカーを指標に(a)変異体スクリーニング、(b)ケミカルスクリーニング、(c)Yeast one-hybridスクリーニングにより新奇因子の探索を行った。
    (a)窒素飢餓レポーターライン(pNRT2.4:GUSレポーターライン)にEMSで変異を導入したM2集団(10,000系統のM1由来)を確立し、窒素充足条件下にも関わらず窒素飢餓レポーターを発現する変異体のスクリーニング条件の確立と1次スクリーニングを行った。複数ラインの変異体候補を得た。(b) ケミカルスクリーニングを行うための栽培条件を確立し、理研-ITbMの標準ライブラリーについて、窒素充足条件下にも関わらず窒素飢餓レポーター(pNRT2.4:GFP)を発現させる化合物のスクリーニングを行った。ヒット化合物候補が複数得られた。(c) Yeast one-hybridスクリーニングのライブラリーとレポーター株の作製を行った。
    <BR>
    ②新奇・既知因子の役割と因子間の遺伝的関係の明確化によるシステム理解:窒素飢餓応答に関わるとされる既知因子の変異体及び過剰発現体の確立を進めた。NIGT1s、LBD37-39、CBL7、 BTB1/2については、変異体を確立した。NIGT1sとLBD37-39については過剰発現体を確立した。CEPDsとNLAについては、Col-0 背景の変異体と過剰発現体作製を開始した。
    所属機関の新型コロナウイルス感染症(COVID-19)における活動指針により、研究室での活動が制限されたため
    引き続き①、②の2項目について研究を推進する。具体的には以下の方針である。
    ①(a)スクリーニングを継続する。有望な変異体が得られ次第、原因遺伝子の同定を進める。①((b) スクリーニングを継続し、ヒット化合物が得られたら、その作用分子メカニズムの解析を行う。①(c) Yeast one-hybridスクリーニングを行い、NRT2.4プロモーターに結合する因子を同定する。
    <BR>
    ②窒素飢餓応答に関わるとされる既知因子の変異体及び過剰発現体を確立しつつ、それらの窒素飢餓応答における役割と因子間の遺伝的関係についての解析を開始する。

  3. Molecular mechanisms and physiological roles of long-distance cytokinin transport

    Grant number:18H04793  2018.4 - 2020.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

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    Authorship:Principal investigator 

    Grant amount:\10140000 ( Direct Cost: \7800000 、 Indirect Cost:\2340000 )

  4. The molecular mechanism underlying nitrogen homeostasis in plants

    Grant number:17K07705  2017.4 - 2020.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    Kiba Takatoshi

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    Authorship:Principal investigator 

    Grant amount:\4680000 ( Direct Cost: \3600000 、 Indirect Cost:\1080000 )

    Nitrogen homeostasis is crucial for plants to survive under fluctuating nutrient environments. It is maintained through the coordination of nitrogen-starvation and nitrogen-sufficiency responses. In this study, we identified a group of transcription factors, named NIGT1s, as a balancing factor between nitrogen-starvation and nitrogen-sufficiency responses. In addition, we revealed that NIGT1s act as a hub for integrating nitrogen and phosphorus signals to optimize nitrogen-phosphorus nutritional balance.

  5. Molecular mechanisms and physiological roles of long-distance cytokinin transport

    Grant number:16H01477  2016.4 - 2018.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

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    Authorship:Principal investigator 

    Grant amount:\10530000 ( Direct Cost: \8100000 、 Indirect Cost:\2430000 )

  6. 慢性的窒素不足環境での植物の生存を支える転写制御ネットワークの解明

    2014.4 - 2016.3

    科学研究費補助金  若手研究(A)

    木羽隆敏

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    Authorship:Principal investigator 

  7. 新規bZIP型転写因子による窒素欠乏応答制御メカニズム 研究課題

    2012.4 - 2014.3

    科学研究費補助金  若手研究(B)

    木羽隆敏

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    Authorship:Principal investigator 

  8. 植物ホルモンを介した炭素・窒素栄養バランス情報の伝達システムの解明

    2009.4 - 2014.4

    科学研究費補助金  新学術領域研究

    木羽隆敏

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    Authorship:Coinvestigator(s) 

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Industrial property rights 2

  1. 遺伝子の発現を高める方法

    木羽隆敏、加藤紀夫、矢野 健太郎、工藤徹

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    Application no:特願2021-134983  Date applied:2021.8

  2. 遺伝子の発現を高める方法

    木羽隆敏、加藤紀夫、矢野健太郎、工藤徹

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    Application no:特願2020-180711  Date applied:2020.10

 

Teaching Experience (On-campus) 6

  1. 応用生命科学科実験実習(バイオインフォマティクス演習)

    2021

  2. 応用生命科学科実験実習(無機科学実験)

    2021

  3. 植物栄養学特論

    2020

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    本講義では、植物の成長を支える光合成を中心に、炭素の同化、窒素の同化および窒素固定、光合成色素および成長制御に関わる情報伝達系とそれらの生化学・分子生物学的知見について学ぶ。特に、生化学的視点から植物の成長戦略の理解を深める。G30の学生が受講する場合は英語授業。

  4. Plant Physiology

    2020

  5. 応用生命科学科実験実習(無機科学実験)

    2020

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    無機科学実験

  6. 応用生命科学科実験実習(バイオインフォマティクス演習)

    2020

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    バイオインフォマティクス演習

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