Light inputs shape the Arabidopsis circadian system
نویسندگان
چکیده
منابع مشابه
Twilight times: light and the circadian system.
The spatial and temporal features of the environment have provided the abiotic selection pressures that have shaped the evolution of life on earth. We are accustomed to accept that the spatial world offers specialized niches. However, we rarely consider that the temporal structure of our planet offers similar opportunities. Most organisms have evolved specializations that allow them to exploit ...
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Short- and long-distance circadian communication is essential for integration of temporal information. However, a major challenge in plant biology is to decipher how individual clocks are interconnected to sustain rhythms in the whole plant. Here we show that the shoot apex is composed of an ensemble of coupled clocks that influence rhythms in roots. Live-imaging of single cells, desynchronizat...
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The present paper reflects a work in progress toward a definition of circadian light, one that should be informed by the thoughtful, century-old evolution of our present definition of light as a stimulus for the human visual system. This work in progress is based upon the functional relationship between optical radiation and its effects on nocturnal melatonin suppression, in large part because ...
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Numerous, varied, and widespread taxa have an internal circadian clock that allows anticipation of rhythmic changes in the environment. We have identified XAP5 CIRCADIAN TIMEKEEPER (XCT), an Arabidopsis thaliana gene important for light regulation of the circadian clock and photomorphogenesis. XCT is essential for proper clock function: xct mutants display a shortened circadian period in all co...
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ژورنال
عنوان ژورنال: The Plant Journal
سال: 2011
ISSN: 0960-7412
DOI: 10.1111/j.1365-313x.2011.04505.x