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

第一作者： Zhang, Zhengkun

作者： Zhang, Zhengkun;Tian, Yifan;Sui, Li;Lu, Yang;Cheng, Ke;Zhao, Yu;Li, Qiyun;Zhang, Zhengkun;Tian, Yifan;Sui, Li;Lu, Yang;Cheng, Ke;Zhao, Yu;Li, Qiyun;Zhang, Zhengkun;Tian, Yifan;Sui, Li;Lu, Yang;Cheng, Ke;Zhao, Yu;Li, Qiyun;Tian, Yifan;Li, Qiyun;Shi, Wangpeng;Li, Qiyun

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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 ）

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年卷期： 2024 年 14 卷

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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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