Photoperiodic control of flowering time: a review
نویسندگان
چکیده
منابع مشابه
Arabidopsis MSI1 functions in photoperiodic flowering time control
Appropriate timing of flowering is crucial for crop yield and the reproductive success of plants. Flowering can be induced by a number of molecular pathways that respond to internal and external signals such as photoperiod, vernalization or light quality, ambient temperature and biotic as well as abiotic stresses. The key florigenic signal FLOWERING LOCUS T (FT) is regulated by several flowerin...
متن کاملBalancing forces in the photoperiodic control of flowering.
In many plant species, the duration of the daily exposure to light (photoperiod) provides a seasonal cue that helps to adjust flowering time to the most favourable time of the year. In Arabidopsis thaliana, the core mechanism of acceleration of flowering by long days involves the stabilisation of the CONSTANS (CO) protein by light reaching the leaves, the direct induction of the expression of F...
متن کاملRegulation of photoperiodic flowering by Arabidopsis photoreceptors.
Photoperiodism is a day-length-dependent seasonal change of physiological or developmental activities that is widely found in plants and animals. Photoperiodic flowering in plants is regulated by photosensory receptors including the red/far-red light-receptor phytochromes and the blue/UV-A light-receptor cryptochromes. However, the molecular mechanisms underlying the specific roles of individua...
متن کاملA proposed model for the flowering signaling pathway of sugarcane under photoperiodic control.
Molecular analysis of floral induction in Arabidopsis has identified several flowering time genes related to 4 response networks defined by the autonomous, gibberellin, photoperiod, and vernalization pathways. Although grass flowering processes include ancestral functions shared by both mono- and dicots, they have developed their own mechanisms to transmit floral induction signals. Despite its ...
متن کاملArabidopsis TOE proteins convey a photoperiodic signal to antagonize CONSTANS and regulate flowering time.
Plants flower in an appropriate season to allow sufficient vegetative development and position flower development in favorable environments. In Arabidopsis, CONSTANS (CO) and FLAVIN-BINDING KELCH REPEAT F-BOX1 (FKF1) promote flowering by inducing FLOWER LOCUS T (FT) expression in the long-day afternoon. The CO protein is present in the morning but could not activate FT expression due to unknown...
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ژورنال
عنوان ژورنال: Spanish Journal of Agricultural Research
سال: 2008
ISSN: 2171-9292,1695-971X
DOI: 10.5424/sjar/200806s1-391