Plant growth-promoting rhizobacteria improve drought tolerance of crops: a review

文献类型: 外文期刊

第一作者: Liu, Kewei

作者: Liu, Kewei;Deng, Fenglin;Zeng, Fanrong;Qin, Yuan;Chen, Zhong-Hua;Chen, Guang

作者机构:

关键词: Rhizosphere microorganisms; Drought stress; Crop-microbe interaction; Sustainable food production

期刊名称:PLANT GROWTH REGULATION ( 影响因子:3.9; 五年影响因子:3.8 )

ISSN: 0167-6903

年卷期: 2025 年 105 卷 3 期

页码:

收录情况: SCI

摘要: Drought stress significantly impairs crop growth and productivity, threatening global food security. Plant growth-promoting rhizobacteria (PGPR) enhance crop stress tolerance through various physiological and molecular mechanisms, including regulation of nitrogen fixation, phosphate solubilization, plant hormone production, antioxidant system, nutrient uptake, and transcript abundance. This study explored the physiological and molecular mechanisms of rhizosphere microorganisms promoting drought resistance in various crops. The dynamic composition of the crop rhizosphere community structure was summarized and revealed the primary mechanisms of PGPR-mediated enhancement in host crop stress resistance. Furthermore, a comparison of PGPR-mediated drought resistance mechanisms in various crops was performed to identify the commonalities and differences. Finally, the potential applications of rhizosphere microorganisms are discussed, which provides insights and theoretical support for future research on the plant growth-promoting mechanisms and practical application of PGPRs for the breeding of drought-tolerant crops towards our sustainable food future.

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