Control of Maize Sheath Blight and Elicit Induced Systemic Resistance Using Paenibacillus polymyxa Strain SF05

文献类型： 外文期刊

第一作者： Chen, Bin

作者： Chen, Bin;Han, Hailiang;Hou, Junfeng;Bao, Fei;Tan, Heping;Lou, Xiaocheng;Wang, Guiyue;Zhao, Fucheng

作者机构：

关键词： Paenibacillus polymyxa; genome sequence; resistance inducement

期刊名称：MICROORGANISMS （ 影响因子：4.926； 五年影响因子：5.143 ）

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年卷期： 2022 年 10 卷 7 期

页码：

收录情况： SCI

摘要： Maize (Zea mays L.) is an important crop in the world and maize sheath blight damages the yield and quality greatly. In this study, an antagonist strain, which exhibited antagonism against pathogenic fungi of maize and controlled maize banded leaf sheath blight in the field, was effectively isolated and named Paenibacillus polymyxa strain SF05. High cellulase and chitinase activity of the strain were detected in this study, which might contribute to degrading the cell wall of fungi. Furthermore, different resistant genes such as ZmPR1a, OPR1 and OPR7 were elicited differently by the strain in the leaves and stems of maize. In order to explain the biocontrol mechanism of P. polymyxa strain SF05, the genome was sequenced and then the genes involving the biocontrol mechanism including biofilm formation pathways genes, cell wall degradation enzymes, secondary metabolite biosynthesis gene clusters and volatile organic compounds biosynthesis genes were predicted. The study revealed the biocontrol mechanism of P. polymyxa strain SF05 preliminary and laid a foundation for further research of biocontrol mechanism of P. polymyxa.

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