A link between chlorophyll synthesis and circadian rhythm in <I>Arabidopsis thaliana</I>
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- Kato Takahiko
- Graduate School of Bioagricultural Sciences, Nagoya Univ.
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- Yamashino Takafumi
- Graduate School of Bioagricultural Sciences, Nagoya Univ.
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- Mizuno Takeshi
- Graduate School of Bioagricultural Sciences, Nagoya Univ.
Bibliographic Information
- Other Title
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- クロロフィル生合成におけるシロイヌナズナ概日時計の役割
Abstract
Greening of etiolated seedlings is an important process of photomorphogenic responses, during which the chlorophyll synthesis must be finely controlled because certain intermediates of chlorophyll synthesis act as light induced oxidative reactants, which might cause harmful effects on plants. The regulatory mechanism underlying the chlorophyll synthesis during de-etiolation (or greening) is not fully understood. In this respect, it was recently reported that a phytochrome-interacting bHLH transcription factor, named PIL5 (PIF1), serves as a negative regulator of the chlorophyll synthesis in etiolated seedlings. We previously identified PIL5 as a factor that directly interacts with the Arabidopsis clock-component PRR1/TOC1 in yeast two-hybrid analyses. This fact led us to envisage that the clock-associated factors, such as PRRs and CCA1, might also implicated in the control of the chlorophyll synthesis. Here we report several lines evidence that strongly support this intriguing idea.
Journal
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- Plant and Cell Physiology Supplement
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Plant and Cell Physiology Supplement 2006 (0), 169-169, 2006
The Japanese Society of Plant Physiologists
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Details 詳細情報について
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- CRID
- 1390001205629205120
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- NII Article ID
- 130006989619
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed