《生命科学》 2022, 34(2): 118-127

根际促生菌对植物的生长促进作用及机制研究进展

穆文强 , 康慎敏 , 李平兰^*

中国农业大学食品科学与营养工程学院，北京 100083

摘　要：

植物根际促生菌是一类生活在植物根系附近的微生物，它具有能够促进植物生长、提高植物抗逆的能力并且增加作物的产量、提高质量的作用。在目前化肥农药大量施用破坏了生态环境的背景下，促生菌作为生物制剂，在农业、林业以及环境修复等方面具有良好的应用前景。文章从植物根际促生菌的概念、种类、作用机理以及应用方面进行阐述，重点总结了近年来国内外关于植物根际促生菌的直接作用机制( 促进营养物质吸收和分泌植物激素) 和间接作用机制( 抗病害和抗逆境) 方面的进展，同时对该研究领域目前存在的问题以及今后的研究前景进行展望，以期为今后植物根际促生菌的研究提供新的思路和理论依据。

通讯作者：李平兰 , Email:lipinglan@cau.edu.cn

Advances in rhizosphere growth-promoting bacteria function on plant growth facilitation and their mechanisms

MU Wen-Qiang, , KANG Shen-Min , LI Ping-Lan^*

College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China

Abstract:

Plant rhizosphere growth-promoting bacteria is a kind of microorganism living near plant roots, which plays a beneficial role in promotion of plant growth, enhancement of the ability of plant resistance to environmental stress, and acceleration of crop yield and quality. Currently, with extensive application of chemical fertilizers and pesticides destroying the ecological environment, growth-promoting bacteria are enormous potential candidates for biological agents in agriculture, forestry, and environmental restoration. This review summarizes the plant rhizosphere growth-promoting bacteria concept, species, mechanisms and applications on crops, especially outlines recent advances in the direct mechanisms (promoting nutrient absorption and secretion of plant hormones) and indirectly mechanisms (resistance to disease and environmental stress) of rhizosphere bacteria home and abroad. Meanwhile, we talk about the existing problems and prospects of growth-promoting bacteria, providing new ideas and a theoretical basis for future research.

Communication Author：LI Ping-Lan , Email:lipinglan@cau.edu.cn