生物学杂志

生物学杂志 ›› 2026, Vol. 43 ›› Issue (1): 86-.doi: 10.3969/j.issn.2095-1736.2026.01.086

• 综述与专论 • 上一篇    下一篇

PGPB胞外多糖的作用机制及应用研究进展

常海霞1,2， 王继莲1,2， 麦日艳古·亚生1,2， 李明源1,2   

  1. 1. 喀什大学 生命与地理科学学院， 喀什 844000；
    2. 新疆帕米尔高原生物资源与生态重点实验室， 喀什 844000
  • 出版日期:2026-02-18 发布日期:2026-02-27
  • 通讯作者: 李明源，博士，教授，主要从事农用微生物资源研究，E-mail：mingyuan_lee@163.com
  • 作者简介:常海霞，硕士研究生，研究方向为农用微生物资源，E-mail：chang_0513@163.com
  • 基金资助:
    国家自然科学基金项目（32160408， 32460428）

Research progress in action mechanisms and applications of exopolysaccharides from PGPB

CHANG Haixia1,2, WANG Jilian1,2,YASHENG·Mairiyangu1,2 ，LI Mingyuan1,2   

  1. 1. College of Life and Geographic Sciences, Kashi University, Kashi 844000, China; 2. Key Laboratory of Biological
    Resources and Ecology of Pamirs Plateau in Xinjiang Uygur Autonomous Region, Kashi 844000, China
  • Online:2026-02-18 Published:2026-02-27

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摘要： 胞外多糖（exopolysaccharides, EPS）在促进植物生长、提高植物抵御非生物胁迫能力、改良土壤质量等方面应用潜力较大。本文剖析了产胞外多糖植物生长促进菌（plant growth-promoting bacteria, PGPB）在促进生物膜形成、改善土壤结构、提高植物根际营养和缓解非生物胁迫等方面的作用机制，重点围绕植物促生、盐碱土壤改良和修复重金属污染等方面概述了PGPB胞外多糖的应用，并对胞外多糖结构与功能之间的关系及有待解决的科学问题进行了展望。通过对PGPB胞外多糖作用机制及应用的整理和总结，期望为进一步开发产胞外多糖PGPB菌种资源、深入探索胞外多糖的结构和功能及其高效发酵生产过程提供理论依据，为胞外多糖在农业领域的开发提供参考。

关键词: 植物生长促进菌（PGPB）, 胞外多糖, 植物促生, 作用机制, 土壤改良

Abstract: Exopolysaccharides （EPS） have great potential in promoting plant growth, improving plant resistance to abiotic stress and enhancing soil quality. This paper analyzed the action mechanisms of EPS-producing plant growth-promoting bacteria （PGPB） in promoting biofilm formation, improving soil structure, enhancing plant inter-root nutrients, and mitigating abiotic stress. The application of EPS was also summarized based on the plant growth promotion, saline-alkali soil improvement, and heavy metal pollution remediation. Moreover, the utilization of EPS and the relationship between its structure and function were discussed. By summarizing the research results on the action mechanisms and applications of EPS from PGPB, this study aimed to provide a theoretical basis for further developing the EPS-PGPB strain resources, exploring the structure and function of EPS and its efficient fermentation production process, thereby providing a reference for the development of EPS in the agricultural field.

Key words: plant growth-promoting bacteria, exopolysaccharides, plant growth-promoting, action mechanism, soil improvement

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