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Maize stalk rot caused by Fusarium graminearum alters soil microbial composition and is directly inhibited by Bacillus siamensis isolated from rhizosphere soil

文献类型： 外文期刊

作者： Zhang, Kang 1 ; Wang, Liming 1 ; Si, Helong 2 ; Guo, Hao 2 ; Liu, Jianhu 2 ; Jia, Jiao 3 ; Su, Qianfu 3 ; Wang, Yanbo 4 ; Zang, Jinping 2 ; Xing, Jihong 1 ; Dong, Jingao 1 ;

作者机构： 1.Hebei Agr Univ, State Key Lab North China Crop Improvement & Regul, Baoding, Peoples R China

2.Hebei Agr Univ, Hebei Key Lab Plant Physiol & Mol Pathol, Baoding, Peoples R China

3.Jilin Acad Agr Sci, Inst Plant Protect, Gongzhuling, Peoples R China

4.Liaoning Acad Agr Sci, Maize Res Inst, Shenyang, Peoples R China

关键词： Fusarium graminearum; rhizosphere soil; microbial diversity; Bacillus siamensis; biocontrol

期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：6.064； 五年影响因子：6.843 ）

ISSN：

年卷期： 2022 年 13 卷

页码：

收录情况： SCI

摘要： Maize stalk rot caused by Fusarium graminearum can reduce the yield of maize and efficiency of mechanized harvesting. Besides, deoxynivalenol and zearalenone toxins produced by F. graminearum can also affect domestic animals and human health. As chemical fungicides are expensive and exert negative effects on the environment, the use of biological control agents has become attractive in recent years. In the present study, we collected rhizosphere soil with severe stalk rot disease (ZDD), the rhizosphere soil with disease-free near by the ZDD (ZDH), and measured rhizosphere microbial diversity and microbial taxonomic composition by amplicon sequencing targeting either bacteria or fungi. The results showed that Fusarium stalk rot caused by the Fusarium species among which F. graminearum is frequent and can reduce the abundance and alpha diversity of rhizosphere microbial community, and shift the beta diversity of microorganisms. Furthermore, a bacterial strain, Bacillus siamensis GL-02, isolated from ZDD, was found to significantly affect growth of F. graminearum. In vitro and in vivo assays demonstrated that B. siamensis GL-02 had good capability to inhibit F. graminearum. These results revealed that B. siamensis GL-02 could be a potential biocontrol agent for the control of maize stalk rot.

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