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Acta Horticulturae Sinica ›› 2024, Vol. 51 ›› Issue (8): 1964-1976.doi: 10.16420/j.issn.0513-353x.2023-0981

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Research Progress on Plant Growth Promoting Rhizobacteria to Alleviate Abiotic Stress Tolerance of Horticultural Crops

LI Yadi1, WANG Hanxiang2, HU Baigeng4, YANG Hui5, HU Xinxi1, XIONG Xingyao3,*(), WANG Wanxing2,*()   

  1. 1 College of Horticulture,Hunan Provincial Engineering Research Center for Potatoes,Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China,Hunan Agricultural University,Changsha 410128,China
    2 Key Laboratory of Biology and Genetic Improvement of Root and Tuber Crops,Ministry of Agriculture and Rural Affairs,State Key Laboratory of Vegetable Biobreeding,Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081,China
    3 Agricultural Genomics Institute at Shenzhen,Chinese Academy of Agricultural Sciences,Shenzhen,Guangdong 518120,China
    4 Laoling Xisen Potato Industry Group Co., Ltd., Laoling, Shandong 253600, China
    5 National Center of Technology Innovation for Comprehensive Utilization of Saline-Alkali Land,Dongying,Shandong 257347,China
  • Received:2024-03-25 Revised:2024-05-24 Online:2024-08-25 Published:2024-08-22
  • Contact: XIONG Xingyao, WANG Wanxing

Abstract:

Plant growth-promoting rhizobacteria can change the morphological or physiological characteristics of plants by fixing nitrogen,solubilizing phosphorus,solubilizing potassium,generating iron carriers,secreting secondary metabolites and phytohormones,and regulating plant stress resistance genes to increase the utilization rate of nutrients in plants and thus improve the yield,quality,and stress resistance of plants. The research progress of plant growth-promoting rhizobacteria in enhacing the resistance of horticultural crops to drought,extreme temperature,heavy metals and salt stress,and the prospects and directions of their application are outlined.

Key words: horticultural crop, plant growth promoting rhizobacteria(PGPR), abiotic stress, growth-promoting mechanism