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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
Journal or Publication Title: JOURNAL OF BIOLOGICAL RHYTHMS
Publisher: SAGE PUBLICATIONS INC
ISSN: 0748-7304
Official Date: August 2001
Dates:
DateEvent
August 2001UNSPECIFIED
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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