Journal
CURRENT OPINION IN PLANT BIOLOGY
Volume 13, Issue 1, Pages 83-89Publisher
CURRENT BIOLOGY LTD
DOI: 10.1016/j.pbi.2009.09.007
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Funding
- National Institute of Health [R01GM079712]
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Plants possess a circadian clock that enables them to coordinate internal biological events with external daily changes. Recent studies in Arabidopsis revealed that tissue-specific clock components exist and that the clock network architecture also varies within different organs These findings indicate that the makeup of circadian clock(s) within a plant is quite variable. Plants utilize the circadian clock to measure day-length changes for regulating seasonal responses, such as flowering To ensure that flowering occurs under optimum conditions, the clock regulates diurnal CONSTANS (CO) expression Subsequently, CO protein induces FLOWERING LOCUS T (FT) expression which leads to flowering It is emerging that both CO and FT expression are intricately controlled by groups of transcription factors with overlapping functions.
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