Flowering time: From photoperiodism to florigen
نویسنده
چکیده
An Arabidopsis blue-light receptor, Cry2, has been found to play a critical role in the photoperiodic control of flowering time; and genes have been identified that may control the production of a transmissible flower-inducing signal, which may turn out to be the long-elusive putative flowering hormone 'florigen'.
منابع مشابه
FTIP1 Is an Essential Regulator Required for Florigen Transport
The capacity to respond to day length, photoperiodism, is crucial for flowering plants to adapt to seasonal change. The photoperiodic control of flowering in plants is mediated by a long-distance mobile floral stimulus called florigen that moves from leaves to the shoot apex. Although the proteins encoded by FLOWERING LOCUS T (FT) in Arabidopsis and its orthologs in other plants are identified ...
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The change from vegetative to reproductive growth is a critical developmental transition in the life of plants. Various external cues, such as photoperiod and temperature, are known to initiate plant flowering under the appropriate seasonal conditions. Endogenous cues include a system of juvenile to adult transition that affects competence to flower. To understand the molecular mechanism of flo...
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Plant biologists have long sought the identity of florigen, the signal that travels from the leaves to the shoot apical meristem to induce flowering. Two recent reports conclude that the elusive florigen is FLOWERING LOCUS (FT) in the model plant Arabiodpsis thaliana (Corbesier et al., 2007) and that its homolog in rice is Hd3a (Tamaki et al., 2007). Although FT is known to promote flowering an...
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that they are not sensitive to environmental cues. The Milo J. Aukerman and Rick M. Amasino Department of Biochemistry extent to which environmental-response pathways versus autonomous pathways control flowering varies 420 Henry Mall University of Wisconsin among plant species. Even within a species there are often photoperiod-responsive and -nonresponsive types Madison, Wisconsin 53706-1569 th...
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Photoperiodic control of flowering time consists of a complicated network that converges into the generation of a mobile flowering signal called florigen. Recent advances identifying the protein FT/Hd3a as the molecular nature responsible for florigen activity have focused current research on florigen genes as the important output of this complex signaling network. Rice is a model system for sh...
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ورودعنوان ژورنال:
- Current Biology
دوره 8 شماره
صفحات -
تاریخ انتشار 1998