منابع مشابه
Regulation of floral initiation in horticultural trees.
The intention of this review is to discuss floral initiation of horticultural trees. Floral initiation is best understood for herbaceous species, especially at the molecular level, so a brief overview of the control of floral initiation of Arabidopsis (Arabidopsis thaliana (L.) Heynh.) precedes the discussion of trees. Four major pathways to flowering have been characterized in Arabidopsis, inc...
متن کاملThe Reaction Controlling Floral Initiation.
Reproduction in many plants and animals is controlled by the length of the night and the cycle of day and night. A dark reaction affords the measure of time and this reaction can be quickly stopped or reversed by light such as that from the rising sun. The reaction is possibly universal in living forms but its more extreme and evident manifestation is recognized to a rather limited extent. Thus...
متن کاملGriesel-floral Primordia Initiation in Cestrum
in this report that C. nocturnum is both LD and LSD in its responses and that the previously reported critical day length is for the LD responses while the LSD response has a critical day length of between 12 and 16 hours. This more clearly defining of the 2 responses in C. nocturnum brings into focus the previously suggested questions as to whether a single hormone can he synthesized as a resu...
متن کاملOrchestration of floral initiation by APETALA1.
The MADS-domain transcription factor APETALA1 (AP1) is a key regulator of Arabidopsis flower development. To understand the molecular mechanisms underlying AP1 function, we identified its target genes during floral initiation using a combination of gene expression profiling and genome-wide binding studies. Many of its targets encode transcriptional regulators, including known floral repressors....
متن کاملDifferent roles of flowering-time genes in the activation of floral initiation genes in Arabidopsis.
We have analyzed double mutants that combine late-flowering mutations at four flowering-time loci (FVE, FPA, FWA, and FT) with mutations at the LEAFY (LFY), APETALA1 (AP1), and TERMINAL FLOWER1 (TFL1) loci involved in the floral initiation process (FLIP). Double mutants between ft-1 or fwa-1 and lfy-6 completely lack flowerlike structures, indicating that both FWA and FT act redundantly with LF...
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ژورنال
عنوان ژورنال: Canadian Journal of Plant Science
سال: 1974
ISSN: 0008-4220,1918-1833
DOI: 10.4141/cjps74-080