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Day-length perception and the photoperiodic regulation of flowering in Arabidopsis
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UNSPECIFIED (2001) Day-length perception and the photoperiodic regulation of flowering in Arabidopsis. JOURNAL OF BIOLOGICAL RHYTHMS, 16 (4). pp. 415-423.
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Abstract
The flowering of Arabidopsis plants is accelerated by long-day photoperiods, and recent genetic studies have identified elements of the photoperiodic timing mechanism. These elements comprise genes that regulate the function of the circadian clock, photoreceptors, and downstream components of light signaling pathways. These results provide evidence for the role of the circadian clock in photoperiodic time measurement and suggest that photoperiod perception may follow Pittendrigh's external coincidence model. T-cycle experiments indicated that changes in the timing of circadian rhythms, relative to dawn and dusk, correlated with altered flowering time. Thus, the perception of photoperiod may be mediated by adjustments in the phase of the circadian cycle that arise upon re-entrainment to a different light-dark cycle. The nature of the rhythm underlying the floral response is not known, but candidate molecules have been identified.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QH Natural history > QH301 Biology Q Science > QP Physiology |
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| Journal or Publication Title: | JOURNAL OF BIOLOGICAL RHYTHMS | ||||
| Publisher: | SAGE PUBLICATIONS INC | ||||
| ISSN: | 0748-7304 | ||||
| Official Date: | August 2001 | ||||
| Dates: |
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| Volume: | 16 | ||||
| Number: | 4 | ||||
| Number of Pages: | 9 | ||||
| Page Range: | pp. 415-423 | ||||
| Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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