Regulation of Flowering Time: When and Where?

In seasonal flowering, plants need to monitor environmental variables. A combination of photoreceptors and the circadian clock initiate signals that regulate a network of genes in the leaf vascular system which communicates through mobile FLOWERING LOCUS T (FT) proteins, with the shoot apical merist...

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Bibliographic Details
Published inCurrent opinion in plant biology Vol. 63; p. 102049
Main Authors Freytes, Santiago Nicolás, Canelo, Micaela, Cerdán, Pablo D.
Format Journal Article
LanguageEnglish
Published England Elsevier Ltd 01.10.2021
Subjects
apical meristems
circadian clocks
Constans
Flowering
Flowering locus T
flowers
Gibberellic acid
leaves
loci
Photoperiod
Terminal flower 1
Terminal flower 1
Constans
Flowering
Photoperiod
Gibberellic acid
Flowering locus T
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Summary:In seasonal flowering, plants need to monitor environmental variables. A combination of photoreceptors and the circadian clock initiate signals that regulate a network of genes in the leaf vascular system which communicates through mobile FLOWERING LOCUS T (FT) proteins, with the shoot apical meristem (SAM). At the SAM, a second network of genes is turned on specifically in certain cell domains, established by a second mobile protein, TERMINAL FLOWER 1 (TFL1), to ensure that flowering signals are translated into floral meristems at the flanks of the SAM but without compromising the nature of the SAM itself. Here, we provide an update on recent findings about the integration of light signals upstream of FT and tissue-specific events that occur in the SAM to balance flower production with SAM endurance.
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ISSN:1369-5266
1879-0356
1879-0356
DOI:10.1016/j.pbi.2021.102049