scholarly journals Circadian Waves of Expression of the APRR1/TOC1 Family of Pseudo-Response Regulators in Arabidopsis thaliana : Insight into the Plant Circadian Clock

2000 ◽  
Vol 41 (9) ◽  
pp. 1002-1012 ◽  
Author(s):  
Akinori Matsushika ◽  
Seiya Makino ◽  
Masaya Kojima ◽  
Takeshi Mizuno
Keyword(s):  
Arabidopsis Thaliana ◽  
Circadian Clock ◽  
Response Regulators ◽  
Insight Into

scholarly journals PSEUDO-RESPONSE REGULATORS, PRR9, PRR7 and PRR5, Together Play Essential Roles Close to the Circadian Clock of Arabidopsis thaliana

2005 ◽  
Vol 46 (5) ◽  
pp. 686-698 ◽  
Author(s):  
Norihito Nakamichi ◽  
Masanori Kita ◽  
Shogo Ito ◽  
Takafumi Yamashino ◽  
Takeshi Mizuno
Keyword(s):  
Arabidopsis Thaliana ◽  
Circadian Clock ◽  
Response Regulators

scholarly journals Insight into Missing Genetic Links Between Two Evening-Expressed Pseudo-Response Regulator Genes TOC1 and PRR5 in the Circadian Clock-Controlled Circuitry in Arabidopsis thaliana

2008 ◽  
Vol 49 (2) ◽  
pp. 201-213 ◽  
Author(s):  
Shogo Ito ◽  
Yusuke Niwa ◽  
Norihito Nakamichi ◽  
Hideaki Kawamura ◽  
Takafumi Yamashino ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Circadian Clock ◽  
Response Regulator ◽  
Pseudo Response Regulator ◽  
Regulator Genes ◽  
Insight Into

scholarly journals Genes Encoding Pseudo-Response Regulators: Insight into His-to-Asp Phosphorelay and Circadian Rhythm in Arabidopsis thaliana

2000 ◽  
Vol 41 (6) ◽  
pp. 791-803 ◽  
Author(s):  
S. Makino ◽  
T. Kiba ◽  
A. Imamura ◽  
N. Hanaki ◽  
A. Nakamura ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Circadian Rhythm ◽  
Response Regulators ◽  
Genes Encoding ◽  
Insight Into

scholarly journals Newly Described Components and Regulatory Mechanisms of Circadian Clock Function in Arabidopsis thaliana

2012 ◽  
Vol 5 (3) ◽  
pp. 545-553 ◽  
Author(s):  
Manuel Adrián Troncoso-Ponce ◽  
Paloma Mas
Keyword(s):  
Arabidopsis Thaliana ◽  
Circadian Clock ◽  
Regulatory Mechanisms

scholarly journals Impact of clock-associated Arabidopsis pseudo-response regulators in metabolic coordination

2009 ◽  
Vol 106 (17) ◽  
pp. 7251-7256 ◽  
Author(s):  
Atsushi Fukushima ◽  
Miyako Kusano ◽  
Norihito Nakamichi ◽  
Makoto Kobayashi ◽  
Naomi Hayashi ◽  
...  
Keyword(s):  
Circadian Clock ◽  
Stress Responses ◽  
Clock Genes ◽  
Higher Plants ◽  
Tricarboxylic Acid Cycle ◽  
Integrated Analysis ◽  
Response Regulators ◽  
Triple Mutant ◽  
Mitochondrial Functions ◽  
Wide Range

In higher plants, the circadian clock controls a wide range of cellular processes such as photosynthesis and stress responses. Understanding metabolic changes in arrhythmic plants and determining output-related function of clock genes would help in elucidating circadian-clock mechanisms underlying plant growth and development. In this work, we investigated physiological relevance of PSEUDO-RESPONSE REGULATORS (PRR 9, 7, and 5) in Arabidopsis thaliana by transcriptomic and metabolomic analyses. Metabolite profiling using gas chromatography–time-of-flight mass spectrometry demonstrated well-differentiated metabolite phenotypes of seven mutants, including two arrhythmic plants with similar morphology, a PRR 9, 7, and 5 triple mutant and a CIRCADIAN CLOCK-ASSOCIATED 1 (CCA1)-overexpressor line. Despite different light and time conditions, the triple mutant exhibited a dramatic increase in intermediates in the tricarboxylic acid cycle. This suggests that proteins PRR 9, 7, and 5 are involved in maintaining mitochondrial homeostasis. Integrated analysis of transcriptomics and metabolomics revealed that PRR 9, 7, and 5 negatively regulate the biosynthetic pathways of chlorophyll, carotenoid and abscisic acid, and α-tocopherol, highlighting them as additional outputs of pseudo-response regulators. These findings indicated that mitochondrial functions are coupled with the circadian system in plants.

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