Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (24): 85-90.doi: 10.11924/j.issn.1000-6850.casb20200200090

Special Issue: 生物技术

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Exogenous Regulator Substances Regulate Plant Growth Under Salt Stress: A Review

Geng Gui1,2(), Li Renren1, Lv Chunhua1, Yu Lihua2, Wang Yuguang2()   

  1. 1College of Life Science, Heilongjiang University, Harbin 150080
    2College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080
  • Received:2020-02-07 Revised:2020-03-09 Online:2020-08-25 Published:2020-08-20
  • Contact: Wang Yuguang E-mail:genggui01@163.com;wangyuguang0920@hotmail.com

Abstract:

To explore the regulation mechanism of exogenous substances on plant salt tolerance and to further utilize exogenous regulatory substances to improve plant salt tolerance, we summarized the five categories of traditional plant hormones (auxin, gibberellin, ethylene, abscisic acid, and cytokinin), and exogenous growth regulators such as melatonin, salicylic acid, polyamine, brassinosteroid, jasmonic acid on plant growth regulation under salt stress. At the same time, we reviewed the regulation effect of silicon and calcium on plant growth under salt stress, indicated that various exogenous regulatory substances could reduce salt damage by enhancing photosynthesis, increasing osmotic potential, improving protecting enzyme activity and reducing ion toxicity. This study provides a theoretical basis for using the single or compound exogenous regulatory substances to alleviate crop salt damage in the future.

Key words: exogenous substances, salt stress, plant hormones, ionic exogenous regulator, salt resistance

CLC Number: