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Planta, 2008
This review covers recent advances in gibberellin (GA) signaling. GA signaling is now understood to hinge on DELLA proteins. DELLAs negatively regulate GA response by activating the promoters of several genes including Xerico, which upregulates the abscisic acid pathway which is antagonistic to GA.
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This review covers recent advances in gibberellin (GA) signaling. GA signaling is now understood to hinge on DELLA proteins. DELLAs negatively regulate GA response by activating the promoters of several genes including Xerico, which upregulates the abscisic acid pathway which is antagonistic to GA.
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Gibberellin signalling pathway
Current Opinion in Plant Biology, 2003Recent molecular biological and genetical studies have identified several positive and negative regulators of gibberellin (GA) signalling pathways in higher plants. The DELLA protein functions as a negative regulator of GA signalling; its degradation through the ubiquitin/proteasome pathway is a key event in the regulation of GA-stimulated processes.
Kenji, Gomi, Makoto, Matsuoka
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Nature, 1959
RECENTLY, Fletcher, Alcorn and Raymond1 presented evidence that gibberellins had no effect on the nodulation of white clover (Trifolium repens) grown either in aseptic agar or in soil. In concentrations from 1 to 1,000 p.p.m., gibberellic acid was also without effect on the growth of the nodule-forming organism Rhizobium trifolii.
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RECENTLY, Fletcher, Alcorn and Raymond1 presented evidence that gibberellins had no effect on the nodulation of white clover (Trifolium repens) grown either in aseptic agar or in soil. In concentrations from 1 to 1,000 p.p.m., gibberellic acid was also without effect on the growth of the nodule-forming organism Rhizobium trifolii.
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Gibberellin signal transduction
Current Opinion in Plant Biology, 2000Recent studies using biochemical and genetic approaches have identified a number of components, including several negative regulators, of the gibberellin (GA) signal transduction pathway in higher plants. The basal state of GA signaling is likely to be repressive, and the GA signal seems to activate the pathway by de-repression to allow GA-stimulated ...
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