Biotechnology Bulletin ›› 2022, Vol. 38 ›› Issue (12): 88-99.doi: 10.13560/j.cnki.biotech.bull.1985.2021-1525

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Research Progress in Diversity of Endophytes Microbial Communities Isolated from Desert Plants and Their Strengthening Effects on Drought and Salt Tolerance in Crops

YIPARE·Paerhati (), ZULIHUMAER·Rouzi , TIAN Yong-zhi, ZHU Yan-lei, LI Yuan-ting, MA Xiao-lin()   

  1. Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology,Key Laboratory of Special Environment Biodiversity Application and Regulation in Xinjiang,School of Life Sciences,Xinjiang Normal University,Urumqi 830054
  • Received:2021-12-08 Online:2022-12-26 Published:2022-12-29
  • Contact: MA Xiao-lin E-mail:627428492@qq.com;xiaolin@xjnu.edu.cn

Abstract:

Endophytes symbiosis is an important strategy for desert plant to resist to extreme environments. Endophytes promotes the drought resistance and salt tolerance of host plants,and can also improve the stress resistance of non-host crops in the similar way,which is expected to solve the problem of grain yield reduction in extreme environments. This paper summarized the species of endophytes from desert plants and the diversity of their host plants in recent years. From the physiological level of plant-microbial symbiotic interaction(hormone,metabolite,antioxidant and osmotic potential regulation)to the molecular(enzyme and gene)level,it systematically analyzed the mechanism of synergistic drought resistance and salt tolerance of endophytes on host and non-host crops. Combined with the research progress of desert plant endophytes engaged in by our research group for many years,on the basis of obtaining a large number of strains with growth promoting and stress resistance function and exploring their mode of action,we put forward positive alternative schemes for desert ecological vegetation restoration and agricultural sustainable development.

Key words: desert plant, endophyte, crops, drought and salt tolerance, genes associated with stress