منابع مشابه
Update on Floral Meristem Termination Time to Stop: Flower Meristem Termination
Flowers are the reproductive structure of angiosperms. They are composed of four distinct types of organs: sepals, petals, stamens, and carpels, which typically develop on four concentric rings, or whorls (Fig. 1A). In Arabidopsis (Arabidopsis thaliana), floral organ identity relies on the combinatorial action of four classes of flower-specific transcription factors, expressed in partially over...
متن کاملPhotoperiod regulates flower meristem development in Arabidopsis thaliana.
Photoperiod has been known to regulate flowering time in many plant species. In Arabidopsis, genes in the long day (LD) pathway detect photoperiod and promote flowering under LD. It was previously reported that clavata2 (clv2) mutants grown under short day (SD) conditions showed suppression of the flower meristem defects, namely the accumulation of stem cells and the resulting production of ext...
متن کاملA Strawberry KNOX Gene Regulates Leaf, Flower and Meristem Architecture
The KNOTTED-LIKE HOMEODOMAIN (KNOX) genes play a central role in maintenance of the shoot apical meristem. They also contribute to the morphology of simple and compound leaves. In this report we characterize the FaKNOX1 gene from strawberry (Fragaria spp.) and demonstrate its function in trasgenic plants. The FaKNOX1 cDNA was isolated from a cultivated strawberry (F.×ananassa) flower EST librar...
متن کاملCLAVATA1, a regulator of meristem and flower development in Arabidopsis.
We have investigated the effects on plant development of mutations in the Arabidopsis thaliana CLAVATA1 gene. In clavata1 plants, vegetative, inflorescence and floral meristems are all enlarged relative to wild type. The apical meristem can fasciate in the more severe mutant alleles, and this fasciation can occur prior to the transition to flowering. Flowers of clavata1 plants can have increase...
متن کاملSeparate elements of the TERMINAL FLOWER 1 cis-regulatory region integrate pathways to control flowering time and shoot meristem identity.
TERMINAL FLOWER 1 (TFL1) is a key regulator of Arabidopsis plant architecture that responds to developmental and environmental signals to control flowering time and the fate of shoot meristems. TFL1 expression is dynamic, being found in all shoot meristems, but not in floral meristems, with the level and distribution changing throughout development. Using a variety of experimental approaches we...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 2009
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.109.141812