《植物生理学报》 2021, 57(4): 749-758

外生菌根预共生阶段信号识别机制研究进展

冯万艳^1,2，孙学广^1,2,*，丁贵杰^1,2

¹贵州大学贵州省森林资源与环境研究中心/贵州省高原山地林木培育重点实验室, 贵阳550025；²贵州大学林学院, 贵阳550025

通信作者：孙学广；E-mail: sunxg0518@aliyun.com

摘　要：

外生菌根(ectomycorrhizal, ECM)真菌作为林木重要的共生真菌, 对调控林木生长和适应性极为重要。探究ECM共生机制, 特别是预共生阶段的信号识别机制, 对解析林木与微生物共存机理及后续开展ECM真菌在林业生产上的应用具有重要意义。作者综述了近年来国内外有关ECM预共生机制研究的最新进展, 对ECM预共生机制的研究对象和体系, ECM真菌源和宿主源的信号分子及效应进行了系统总结,并对研究现状的不足和未来研究趋势进行了分析, 以期为后续进一步阐释ECM共生机制和加强ECM真菌的应用研究提供参考。

关键词：外生菌根; 预共生阶段; 信号分子; 共生机制

收稿：2020-12-15   修定：2021-03-02

资助：贵州省科技计划项目([2018]5261)、国家自然科学基金 (31971572、 31500090)和广西创新驱动发展专项(AA17- 204087-4)

Advance of ectomycorrhizal signal recognition mechanism in pre-symbiosis

FENG Wanyan^1,2, SUN Xueguang^1,2,*, DING Guijie^1,2

¹Institute for Forest Resources and Environment of Guizhou/Key Laboratory of Forest Cultivation in Plateau Mountain of Guizhou Province, Guiyang 550025, China; ²College of Forestry, Guizhou University, Guiyang 550025, China

Corresponding author: SUN Xueguang; E-mail: sunxg0518@aliyun.com

Abstract:

Ectomycorrhizal (ECM) fungi are extremely important for the regulation of forest growth and adaptability. Exploring the ECM symbiotic mechanism, especially the signal recognition mechanism in the pre-symbiotic phase, is of great signifcance for analyzing the coexistence mechanism between trees and microorganisms and the subsequent application of ECM fungi in forestry production. In this paper, a review of recent advances in the study of ECM pre-symbiotic mechanisms at home and abroad was presented. As for the study of ECM pre-symbiosis, the author not only systematically summarized the study object and system of pre-symbiosis the signal molecular effects of ECM fungi and host sources, but also analyzed the defciency of research status and future research trend, hoping to provide reference for further explanation of ECM symbiotic mechanism and application of ECM fungi.

Key words: ectomycorrhizas; pre-symbiotic phase; signal molecule; symbiotic mechanism