Abstract:
:Flowering of the facultative long-day plant Arabidopsis is controlled by several endogenous and environmental factors, among them gibberellins (GAs) and day length. The promotion of flowering by long days involves an endogenous clock that interacts with light cues provided by the environment. Light, and specifically photoperiod, is also known to regulate the biosynthesis of GAs, but the effects of GAs and photoperiod on flowering are at least partially separable. Here, we have used a short-period mutant, toc1, to investigate the role of the circadian clock in the control of flowering time by GAs and photoperiod. We show that toc1 affects expression of several floral regulators and a GA biosynthetic gene, but that these effects are independent.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Blázquez MA,Trénor M,Weigel Ddoi
10.1104/pp.007625subject
Has Abstractpub_date
2002-12-01 00:00:00pages
1770-5issue
4eissn
0032-0889issn
1532-2548journal_volume
130pub_type
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