Flowering time: From photoperiodism to florigen
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چکیده
منابع مشابه
Flowering time: From photoperiodism to florigen
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'.
متن کاملThe flowering transition and florigen
What is the flowering transition? It marks the end of vegetative growth and the beginning of reproductive development in flowering plants. The physiological changes that cause it are referred to as floral induction. What is SAM? The shoot apical meristem — a group of undifferentiated progenitor cells that occupies the tip of the stem. It gives rise to both vegetative organs (leaves) and reprodu...
متن کاملFlorigen and anti-florigen – a systemic mechanism for coordinating growth and termination in flowering plants
Genetic studies in Arabidopsis established FLOWERING LOCUS T (FT) as a key flower-promoting gene in photoperiodic systems. Grafting experiments established unequivocal one-to-one relations between SINGLE FLOWER TRUSS (SFT), a tomato homolog of FT, and the hypothetical florigen, in all flowering plants. Additional studies of SFT and SELF PRUNING (SP, homolog of TFL1), two antagonistic genes regu...
متن کاملDiscovery of Flowering Hormone (Florigen) Receptor and Its Crystal Structure
Florigen, a mobile floral induction protein, initiates the flowering process of activating floral identity genes. Many details of the molecular function of florigen remain unclear. In the present study, we found that the rice florigen Hd3a directly interacts with 14-3-3 (GF14) proteins, but not with the transcription factor OsFD1. We further determined the 2.4-Å crystal structure of a tripartit...
متن کاملPhotoperiodic Regulation of Flowering Time through Periodic Histone Deacetylation of the Florigen Gene FT
The developmental transition from a vegetative to a reproductive phase (i.e., flowering) is timed by the seasonal cue day length or photoperiod in many plant species. Through the photoperiod pathway, inductive day lengths trigger the production of a systemic flowering signal, florigen, to provoke the floral transition. FLOWERING LOCUS T (FT), widely conserved in angiosperms, is a major componen...
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ژورنال
عنوان ژورنال: Current Biology
سال: 1998
ISSN: 0960-9822
DOI: 10.1016/s0960-9822(98)70437-3