Gibberellins Promote Flowering in Two Cryptocoryne Species
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چکیده
منابع مشابه
Gibberellins promote flowering of arabidopsis by activating the LEAFY promoter
The gibberellin class of plant hormones has been implicated in the control of flowering in several species. In Arabidopsis, severe reduction of endogenous gibberellins delays flowering in long days and prevents flowering in short days. We have investigated how the differential effects of gibberellins on flowering correlate with expression of LEAFY, a floral meristem identity gene. We have found...
متن کاملGibberellins promote vegetative phase change and reproductive maturity in maize.
Postembryonic shoot development in maize (Zea mays L.) is divided into a juvenile vegetative phase, an adult vegetative phase, and a reproductive phase that differ in the expression of many morphological traits. A reduction in the endogenous levels of bioactive gibberellins (GAs) conditioned by any one of the dwarf1, dwarf3, dwarf5, or anther ear1 mutations in maize delays the transition from j...
متن کاملRegulation of flowering in the long-day grass Lolium temulentum by gibberellins and the FLOWERING LOCUS T gene.
Seasonal control of flowering often involves leaf sensing of daylength coupled to time measurement and generation and transport of florigenic signals to the shoot apex. We show that transmitted signals in the grass Lolium temulentum may include gibberellins (GAs) and the FLOWERING LOCUS T (FT) gene. Within 2 h of starting a florally inductive long day (LD), expression of a 20-oxidase GA biosynt...
متن کاملGibberellins in Relation to Growth and Flowering in Pharbitis nil Chois.
Flowering can be modified by gibberellins (GAs) in Pharbitis nil Chois. in a complex fashion depending on GA type, dosage, and the timing of treatment relative to a single inductive dark period. Promotion of flowering occurs when GAs are applied 11 to 17 hours before a single inductive dark period. When applied 24 hours later the same GA dosage is inhibitory. Thus, depending on their activity a...
متن کاملThe Role of Gibberellins in the Regulation of Arabidopsis Flowering Time
Eriksson, S. 2005 The Role of Gibberellins in the Regulation of Arabidopsis Flowering Time. Doctor’s dissertation ISSN 1652-6880, ISBN 91-576-7142-7 The transition to flowering in the facultative long-day plant Arabidopsis (Arabidopsis thaliana) have been thoroughly studied and today it is well understood how flowering in response to changes in photoperiod and cold is integrated at the molecula...
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ژورنال
عنوان ژورنال: HortScience
سال: 1995
ISSN: 0018-5345,2327-9834
DOI: 10.21273/hortsci.30.2.380