Research Progress for the Gibberellin Signaling and Action on Plant Growth and Development

doi:10.13560/j.cnki.biotech.bull.1985.2018-0447

Abstract

Abstract: Gibberellins（GAs）are the important plant hormones and play an important role in modulating diverse processes throughout plant growth and development. Recent studies on GA signaling and the crosstalk between GA and other plant hormones and environmental cues have achieved great progress along with the advancement of molecular genetics and functional genomics. Bioactive GAs promote plant growth and development by promoting the degradation of the DELLA proteins,a family of nuclear growth repressors. In this article,we review the key components of GA signaling pathway,including the soluble receptor protein GIBBERELLIN INSENSITIVE DWARF1（GID1）,the F-box protein（SLEEPY1[SLY1]in Arabidopsis and GIBBERELLIN INSENSITIVE DWARF2[GID2]in rice）and the DELLA proteins,to demonstrate the GA's “de-repression” model,we also focus on DELLA proteins function which is connected to developmental and environmental responses.

Key words: gibberellin, DELLA protein, signaling transduction, growth and development

GAO Xiu-hua, FU Xiang-dong. Research Progress for the Gibberellin Signaling and Action on Plant Growth and Development[J]. Biotechnology Bulletin, 2018, 34(7): 1-13.

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