First record of Aspergillus nomiae as a broad-spectrum entomopathogenic fungus that provides resistance against phytopathogens and insect pests by colonization of plants
文献类型： 外文期刊
作者： Zhang, Zhengkun 1 ; Tian, Yifan 1 ; Sui, Li 1 ; Lu, Yang 1 ; Cheng, Ke 1 ; Zhao, Yu 1 ; Li, Qiyun 1 ; Shi, Wangpeng 4 ;
作者机构： 1.Jilin Acad Agr Sci, Inst Plant Protect, Changchun, Peoples R China
2.Jilin Key Lab Agr Microbiol, Changchun, Peoples R China
3.Minist Agr & Rural Areas, Key Lab Integrated Pest Management Crops Northeast, Changchun, Peoples R China
4.China Agr Univ, Coll Plant Protect, Dept Entomol, Beijing, Peoples R China
5.Jilin Agr Sci & Technol Univ, Jilin, Peoples R China
关键词： entomophagous fungus; Aspergillus nomiae; endogenous colonization; plant disease resistance; biological control
期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：5.2； 五年影响因子：6.2 ）
ISSN：
年卷期： 2024 年 14 卷
页码：
收录情况： SCI
摘要： Introduction: Aspergillus nomiae is known as a pathogenic fungus that infects humans and plants but has never been reported as an entomophagous fungus (EPF) that can provide other functions as an endotype. Methods: A strain of EPF was isolated and identified from diseased larvae of Spodoptera litura in a soybean field and designated AnS1Gzl-1. Pathogenicity of the strain toward various insect pests was evaluated, especially the ability to colonize plants and induce resistance against phytopathogens and insect pests. Results: The isolated EPF strain AnS1Gzl-1 was identified as A. nomiae; it showed strong pathogenicity toward five insect pests belonging to Lepidoptera and Hemiptera. Furthermore, the strain inhibited the growth of Sclerotinia sclerotiorum in vitro, a causal agent of soil-borne plant disease. It colonized plants as an endophyte via root irrigation with a high colonization rate of 90%, thereby inducing plant resistance against phytopathogen infection, and disrupting the feeding selectivity of S. litura larvae. Discussion: This is the first record of a natural infection of A. nomiae on insects. A. nomiae has the potential to be used as a dual biocontrol EPF because of its ability to not only kill a broad spectrum of insect pests directly but also induce resistance against phytopathogens via plant colonization.
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