禾草Epichloe内生真菌功能的研究进展及在植物育种中的潜力  

Research Progress on the Function of Epichloe Endophyte of Grass and Its Potential in Plant Breeding

作　　者：侯文鹏 王剑峰 Hou Wenpeng;Wang Jianfeng(State Key Laboratory of Grassland Agro-Ecosystems,Center for Grassland Microbiome,College of Pastoral Agriculture Science and Technology,Lanzhou University,Lanzhou,730020)

机构地区：[1]兰州大学草地农业科技学院草地微生物研究中心草地农业生态系统国家重点实验室,兰州730020

出　　处：《分子植物育种》2022年第1期320-333,共14页Molecular Plant Breeding

基　　金：教育部创新团队发展计划项目(IRT_17R50);国家自然科学基金与贵州省喀斯特科学研究中心联合基金(U1812401);兰州大学双一流建设项目(561119206)和“111”引智基地项目(B12002)共同资助。

摘　　要：内生真菌(Epichloe)常与早熟禾亚科(Pooideae)冷季型禾草形成一类较为特殊的禾草-内生真菌互惠共生体。近年来,国内外学者对Epichloe内生真菌提高宿主的抗逆机理及其对生态系统功能的影响做了一系列研究。大量研究证实内生真菌可以促进禾草宿主的生长并提高其抗逆性。本研究回顾了Epichloe内生真菌提高宿主对非生物胁迫和生物胁迫抗性的生物学功能、Epichloe内生真菌影响植物群落、土壤养分和土壤微生物多样性的生态学功能及利用内生真菌进行禾草育种的潜力,最后对Epichloe内生真菌的功能进行了展望,以期为研究和利用内生真菌改善禾草的生长及种质创新提供理论依据。The endophytic fungi(Epichloe)often form a special kind of grass-endophyte symbiosis with Pooideae cold-season grasses.In recent years,researcher have done a series of researches on the mechanism of Epichloeendophytes to improve the resistance of host to stress and its impact on ecosystem functions a large number of researches have confirmed that endophytes can promote the growth of host grasses and improve their resistance to stress.This study reviews the biological functions of Epichloeendophyte to improve the host’s resistance to abiotic and biotic stress,ecological functions of Epichloeendophyte affecting plant community,soil nutrients and soil microbial diversity and the potential of using Epichloeendophyte for grass breeding.Finally,the function of Epichloeendophyte is prospected,with a view to providing a theoretical basis for the study and utilization of endophytic fungi to improve the growth and germplasm innovation of grass.

关 键 词：内生真菌 禾草 抗逆生物学 植物群落 土壤养分 

分 类 号：Q948[生物学—植物学]