苏州科技大学学报（自然科学版）2026，Vol.43Issue(3)：70-77,8.DOI:10.12084/j.issn.2096-3289.2026.03.008
罗伯茨绿僵菌在小麦、水稻和玉米中的内生定殖规律与促生作用
The endophytic colonization patterns and growth-promoting effects of Metarhizium robertsii in wheat,rice and maize
摘要
Abstract
To elucidate the crop specificity of the growth-promoting effects of Metarhizium robertsii(MAA),this study compared its impacts on wheat,rice,and maize.The endophytic colonization ability of MAA was verified through tissue isolation,culture,and ITS sequence analysis.Host plant growth and physiological responses were sys-tematically evaluated via pot experiments,and the structure and function of rhizosphere and root endophytic microbial communities were analyzed with metagenomic high-throughput sequencing.The results demonstrated that the growth-promoting effects of MAA exhibited significant crop dependency.It significantly enhanced rice plant height,CAT activity,and NR activity(increasing by 29.0%,39.4%,and 158.3%,respectively),specifically improved maize root activity(by 42.5%),and comprehensively promoted multiple indicators in wheat,with a 20.9%increase in POD activity.In addition,MAA differentially reshaped the microbial communities,such as enriching beneficial bacteria like Acidovorax in rice roots and suppressing pathogenic fungi like Fusarium in wheat rhizosphere.This study reveals the physiological and microecological mechanisms underlying the crop-specific growth promotion by MAA,providing a theoretical basis for developing customized Metarhizium-based microbial agents.关键词
罗伯茨绿僵菌/内生定殖/促生作用/根际微生物群落/酶活性Key words
Metarhizium robertsii/endophytic colonization/growth-promoting effects/rhizosphere microbial com-munity/enzyme activity分类
农业科技引用本文复制引用
王德玲,闫书涵,陈钰东,曹一鸣,扶教龙,白净..罗伯茨绿僵菌在小麦、水稻和玉米中的内生定殖规律与促生作用[J].苏州科技大学学报（自然科学版）,2026,43(3):70-77,8.基金项目
江苏省高等学校自然科学研究面上项目(B类)(20KJB180002) （B类）
