Biotechnology Bulletin ›› 2014, Vol. 0 ›› Issue (10): 16-22.

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Gibberellins Biosynthesis and Signaling Transduction Pathway in Higher Plant

Li Qiang1, 2, Wu Jianming2, Liang He1, Huang Xing2, Qiu Lihang2   

  1. 1. Agricultural College of Guangxi University,Nanning 530004; 2. Key Laboratory of Sugarcane Biotechnology and Genetic Improvement(Guangxi),Ministry of Agriculture,P. R. China,Sugarcane Research Center,Chinese Academy of Agricultural Sciences,Nanning 530007
  • Received:2014-03-17 Online:2014-10-20 Published:2014-10-17

Abstract: The hormone gibberellins(GA)plays an essential role in many aspects of plant growth and development, such as promoting seed germination, stem elongation, occurrence of flower, fruit and seed development. This review elaborated the GA biosynthesis and signaling transduction pathway, as well as interactions with other hormones, response to the environment signals, and the recent advances in understanding of degradation of DELLA proteins by polyubiquitination of the DELLAs via the E3 ubiquitin-ligase SCF SLY1/GID2 in the 26S proteasome. This helps not only people understanding of gibberellin physiology and its molecular regulating mechanism, but also to every aspect of gibberellin mechanism are studied deeply.

Key words: Gibberellins, Signal transduction, Plant hormones, Regulation mechanism