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Casein kinase 1 family regulates PRR5 and TOC1 in the Arabidopsis circadian clock 査読有り国際共著国際誌

Uehara, TN; Mizutani, Y; Kuwata, K; Hirota, T; Sato, A; Mizoi, J; Takao, S; Matsuo, H; Suzuki, T; Ito, S; Saito, AN; Nishiwaki-Ohkawa, T; Yamaguchi-Shinozaki, K; Yoshimura, T; Kay, SA; Itami, K; Kinoshita, T; Yamaguchi, J; Nakamichi, N

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 116 巻 ( 23 ) 頁： 11528 - 11536 2019年6月

Evolutionary Insight into the Clock-Associated PRR5 Transcriptional Network of Flowering Plants 査読有り国際誌

Toda, Y; Kudo, T; Kinoshita, T; Nakamichi, N

SCIENTIFIC REPORTS 9 巻 ( 1 ) 頁： 2983 2019年2月

Improvement of Arabidopsis Biomass and Cold, Drought and Salinity Stress Tolerance by Modified Circadian Clock-Associated PSEUDO-RESPONSE REGULATORs 査読有り国際共著

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

Plant Cell Physiol. 57 巻頁： 1085-1097 2016年5月

Transcriptional repression by MYB3R proteins regulates plant organ growth. 査読有り

Kobayashi K, Suzuki T, Iwata E, Nakamichi N, Suzuki T, Chen P, Ohtani M, Ishida T, Hosoya H, Müller S, Leviczky T, Pettkó-Szandtner A, Darula Z, Iwamoto A, Nomoto M, Tada Y, Higashiyama T, Demura T, Doonan JH, Hauser MT, Sugimoto K, Umeda M, Magyar Z, Bögre L, Ito M.

EMBO J 34 巻 ( 15 ) 頁： 1992-2007 2015年8月

A flowering integrator, SOC1, affects stomatal opening in Arabidopsis thaliana 査読有り

Kimura Y, Aoki S, Ando E, Kitatsuji A, Watanabe A, Ohnishi M, Takahashi K, Inoue S, Nakamichi N, Tamada Y, Kinoshita T

Plant Cell Physiol. 56 巻 ( 4 ) 頁： 640-649 2015年4月

Adaptation to the local environment by modifications of the photoperiod response in crops. 査読有り

Nakamichi N.

Plant Cell Physiol. 56 巻 ( 4 ) 頁： 594-604 2015年4月

The LNK1 night light-inducible and clock-regulated gene is induced also in response to warm-night through the circadian clock nighttime repressor in Arabidopsis thaliana

Takeshi Mizuno, Aya Takeuchi, Yuichi Nomoto, Norihito Nakamichi, Takafumi Yamashino

Plant signaling & behavior 9 巻 ( 3 ) 頁： e28505 2014年1月

Clock-Controlled and FLOWERING LOCUS T (FT)-Dependent Photoperiodic Pathway in Lotus japonicus II: Characterization of a MicroRNA Implicated in the Control of Flowering Time. 査読有り

Takafumi Yamashino, Saori Yamawaki, Emi Hagui, Kai Ishida, Hanayo Ueoka-Nakanishi, Norihito Nakamichi, Takeshi Mizuno

Bioscience, biotechnology, and biochemistry 77 巻 ( 6 ) 頁： 1179-1185 2013年6月

Circadian clock and PIF4-mediated external coincidence mechanism coordinately integrates both of the cues from seasonal changes in photoperiod and temperature to regulate plant growth in Arabidopsis thaliana

Yuji Nomoto, Saori Kubozono, Miki Miyachi, Takafumi Yamashino, Norihito Nakamichi, Takeshi Mizuno

Plant signaling & behavior 8 巻 ( 2 ) 頁： e22863 2013年2月

Clock-controlled and FLOWERING LOCUS T (FT)-dependent photoperiodic pathway in Lotus japonicus I: verification of the flowering-associated function of an FT homolog. 査読有り

Takafumi Yamashino, Saori Yamawaki, Emi Hagui, Hanayo Ueoka-Nakanishi, Norihito Nakamichi, Shogo Ito, Takeshi Mizuno

Bioscience, biotechnology, and biochemistry 77 巻 ( 4 ) 頁： 747-753 2012年12月

Molecular mechanisms of circadian rhythm in Lotus japonicus and Arabidopsis thaliana are sufficiently compatible to regulate heterologous core clock genes robustly. 査読有り

Hanayo Ueoka-Nakanishi, Takafumi Yamashino, Kai Ishida, Mari Kamioka, Norihito Nakamichi, Takeshi Mizuno

Bioscience, biotechnology, and biochemistry 76 巻 ( 12 ) 頁： 2332-2334 2012年12月

Circadian clock-and PIF4-controlled plant growth: a coincidence mechanism directly integrates a hormone signaling network into the photoperiodic control of plant architectures in Arabidopsis thaliana 査読有り

Yuichi Nomoto, Saori Kubozono, Takafumi Yamashino, Norihito Nakamichi, Takeshi Mizuno

Plant and Cell Physiology 53 巻 ( 11 ) 頁： 1950-1964 2012年11月

A circadian clock-and PIF4-mediated double coincidence mechanism is implicated in the thermosensitive photoperiodic control of plant architectures in Arabidopsis thaliana 査読有り

Yuichi Nomoto, Saori Kubozono, Miki Miyachi, Takafumi Yamashino, Norihito Nakamichi, Takeshi Mizuno

Plant and Cell Physiology 53 巻 ( 11 ) 頁： 1965-1973 2012年11月

Traveling waves of circadian gene expression in lettuce

Kazuya UKAI, Koji INAI, Norihito NAKAMICHI, Hiroki ASHIDA, Akiho YOKOTA, Yusuf HENDRAWAN, Haruhiko MURASE, Hirokazu FUKUDA

Environment control in biology 50 巻 ( 3 ) 頁： 237-246 2012年9月

Molecular mechanisms underlying the Arabidopsis circadian clock 査読有り

52 巻 ( 10 ) 頁： 1709-1718 2011年10月

Phytochrome-interacting factor 4 and 5 (PIF4 and PIF5) activate the homeobox ATHB2 and auxin-inducible IAA29 genes in the coincidence mechanism underlying photoperiodic control of plant growth of Arabidopsis thaliana 査読有り

Atsushi Kunihiro, Takafumi Yamashino, Norihito Nakamichi, Yusuke Niwa, Hanayo Nakanishi, Takeshi Mizuno

Plant and Cell Physiology 52 巻 ( 8 ) 頁： 1315-1329 2011年8月

LIGHT-REGULATED WD1 and PSEUDO-RESPONSE REGULATOR9 Form a Positive Feedback Regulatory Loop in the Arabidopsis Circadian Clock 査読有り

Ying Wang, Jing-Fen Wu, Norihito Nakamichi, Hitoshi Sakakibara, Hong-Gil Nam, Shu-Hsing Wu

The Plant Cell 23 巻頁： 486-498 2011年

記述言語：英語掲載種別：研究論文（学術雑誌）

In Arabidopsis thaliana, central circadian clock genes constitute several feedback loops. These interlocking loops generate an ~24-h oscillation that enables plants to anticipate the daily diurnal environment. The identification of additional clock proteins can help dissect the complex nature of the circadian clock. Previously, LIGHT-REGULATED WD1 (LWD1) and LWD2 were identified as two clock proteins regulating circadian period length and photoperiodic flowering. Here, we systematically studied the function of LWD1/2 in the Arabidopsis circadian clock. Analysis of the lwd1 lwd2 double mutant revealed that LWD1/2 plays dual functions in the light input pathway and the regulation of the central oscillator. Promoter:luciferase fusion studies showed that activities of LWD1/2 promoters are rhythmic and depend on functional PSEUDO-RESPONSE REGULATOR9 (PRR9) and PRR7. LWD1/2 is also needed for the expression of PRR9, PRR7, and PRR5. LWD1 is preferentially localized within the nucleus and associates with promoters of PRR9, PRR5, and TOC1 in vivo. Our results support the existence of a positive feedback loop within the Arabidopsis circadian clock. Further mechanistic studies of this positive feedback loop and its regulatory effects on the other clock components will further elucidate the complex nature of the Arabidopsis circadian clock.

Transcript profiling of an Arabidopsis PSEUDO RESPONSE REGULATOR arrhythmic triple mutant reveals a role for the circadian clock in cold stress response 査読有り

Norihito Nakamichi, Miyako Kusano, Atsushi Fukushima, Masanori Kita, Shogo Ito, Takafumi Yamashino, Kazuki Saito, Hitoshi Sakakibara, Takeshi Mizuno

Plant Cell Physiol 50 巻頁： 447-462 2009年

A genetic study of the Arabidopsis circadian clock with reference to the TIMING OF CAB EXPRESSION 1 (TOC1) gene 査読有り

Shogo Ito, Hideaki Kawamura, Yosuke Niwa, Norihito Nakamichi, Takafumi Yamashino, Takeshi Mizuno

Plant Cell Physiol 50 巻頁： 290-303 2009年

記述言語：英語掲載種別：研究論文（学術雑誌）

In Arabidopsis thaliana, a consistent multiloop clock model has been widely adopted in many recent publications. This tentative model consists of three interactive feedback loops, namely the core CCA1/LHY-TOC1/X loop, the morning CCA1/LHY-PRR9/PRR7 loop and the evening Y-TOC1 loop, in which the undefined Y gene might be GI. The model in its current form provides us with a basis on which to address a number of fundamental issues for a better understanding of the molecular mechanism by which the central oscillator generates circadian rhythms. We have been conducting a series of genetic studies through the establishment of a set of combinatorial mutants. We have already characterized a prr9 prr7 double loss-of-function mutant that has lost the morning loop, and a cca1 lhy toc1 triple mutant that lacks the core loop. Extension of this line of study required characterization of a gi toc1 double loss-of-function mutant, which is expected to have no evening loop, and a prr9 prr7 toc1 triple mutant, lacking both the morning and evening loops. Genetic analysis of both these lines is reported here. From the results, we have clarified the genetic linkages between GI and TOC1 and those between PRR9/PRR7 and TOC1 with reference to the circadian clock-associated phenotypes, including: (i) length of hypocotyls during early photomor-phogenesis; (ii) photoperiodic control of flowering time; and (iii) expression profiles of CCA1 and LHY under free-running conditions. These results indicate that GI is not sufficient to fulfill the Y role, but plays more complicated clock-associated roles and, interestingly, that no epistatic interaction between PRR9/PRR7 and TOC1 was observed. Furthermore, these clock-defective mutants could still generate robust, free-running rhythms at the level of transcription. Therefore, we speculate that an as yet undefined oscillator (or loop) continues to generate rhythms within the plants lacking GI/TOC1 or PRR9/PRR7/TOC

Linkage between circadian clock and tricarboxylic acid cycle in Arabidopsis

Norihito Nakamichi, Atsushi Fukushima, Miyako Kusano, Hitoshi Sakakibara, Takeshi Mizuno, Kazuki Saito

Plant Signal Behav 4 巻頁： 660-662 2009年

記述言語：英語掲載種別：研究論文（学術雑誌）

The transcriptional/translational feedback loop is thought to play a central role in the circadian clock in Arabidopsis. The loop includes close paralogs of MYB transcription factors CIRCADIAN CLOCK ASSOCIATED 1 (CCA1) and LATE ELONGATED HYPOCOTYL (LHY), TIMING OF CAB EXPRESSION 1 (TOC1, PSEUDO RESPONSE REGULATOR 1[PRR1]), PRR9, PRR7 and PRR5. The prr9 prr7 prr5 triple mutants (d975) and overexpression line of CCA1 (CCA1-ox) are arrhythmic under continuous light conditions followed by light and dark cycles. We recently demonstrated a tight link between the circadian clock and the tricarboxylic acid (TCA) cycle, from the metabolome analysis of d975. The levels of metabolites belonging to TCA cycle, such as 2-oxoglutarate, succinate, fumarate, citrate and malate increased in d975, whereas those of arginine and ornithine decreased. In this addendum, we further demonstrate that metabolism belonging to TCA cycle in CCA1-ox was partly similar to that of d975. This profiling also supported the linkage between circadian clock and metabolism associated to TCA cycle.

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