HUBEI AGRICULTURAL SCIENCES ›› 2019, Vol. 58 ›› Issue (22): 9-14.doi: 10.14088/j.cnki.issn0439-8114.2019.22.002

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Research progress on the effects of gibberellin on plant seed germination and seedling growth

DU Chen-xi1a,1b, WANG Jin-li1a,1b, ZHOU Hua-kun2, YIN Heng-xia1a   

  1. 1a. State Key Laboratory of Plateau Ecology and Agriculture Qinghai University;
    1b.College of Eco-Environmental Engineering,Qinghai University,Xining 810016,China;
    2.Key Laboratory of Restoration Ecology of Cold Area in Qinghai Province,Northwest Institute of Plateau Biology, Chinese Academy of Sciences,Xining 810008,China
  • Received:2019-04-20 Online:2019-11-25 Published:2019-12-09

Abstract: Gibberellin (Gibberellins, gas) as a kind of growth regulator widely existing in plants, are involved in the regulation of plant seed germination, hypocotyl extension, leaf extension, the development of the flower, fruit and seed and many other physiological processes. A large number of studies have shown that GAs also play an important role in plant resistance to abiotic stress by regulating the biosynthesis, signal transduction and biological activity of GAs, in order to improve the tolerance of plants to abiotic stress. The recent studies on the effect of exogenous gibberellins on seed germination and the growth and development of seedlings were systematically reviewed, mainly focusing on seed germination, physiological and biochemistry characteristics, and related gene regulation, and an important reference basis for the utilization of the gibberellin in the production of the crops was provided.

Key words: gibberellin, seed germination, seedling physiological characteristics, gene regulation

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