生物钟
生物
昼夜节律
拟南芥
神经科学
功能(生物学)
计算生物学
拟南芥
分子钟
细菌昼夜节律
细胞生物学
遗传学
基因
突变体
系统发育学
作者
María A. Nohales,Steve A. Kay
摘要
This Review examines the molecular mechanisms underlying the plant circadian clock, highlighting the functions of transcriptional circuits and post-translational regulation in timing and describing how clock components integrate and respond to environmental signals. Circadian clocks are endogenous timekeeping networks that allow organisms to align their physiology with their changing environment and to perform biological processes at the most relevant times of the day and year. Initial feedback-loop models of the oscillator have been enriched by emerging evidence highlighting the increasing variety of factors and mechanisms that contribute to the generation of rhythms. In this Review, we consider the two major input pathways that connect the circadian clock of the model plant Arabidopsis thaliana to its environment and discuss recent advances in understanding of how transcriptional, post-translational and post-transcriptional mechanisms contribute to clock function.
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