文献类型： 外文期刊
作者： Yang, Wenbo 1 ; Yang, Hui 2 ; Bao, Xiaocun 2 ; Hussain, Mehboob 1 ; Bao, Qiang 2 ; Zeng, Zexuan 2 ; Xiao, Chun 1 ; Zhou, Lingyun 2 ; Qin, Xiaoping 1 ;
作者机构： 1.Yunnan Agr Univ, Coll Plant Protect, Kunming, Peoples R China
2.Hunan Acad Agr Sci, Tea Res Inst, Changsha, Peoples R China
关键词： Brevibacillus brevis; antagonistic activity; genome annotation; pan-genome analysis; antimicrobial peptides; edeine
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： 2023 年 14 卷
页码：
收录情况： SCI
摘要： As a biocontrol bacteria, Brevibacillus has been the subject of extensive research for agricultural applications. Antibacterial peptides (AMPs) are the main antibacterial products of Brevibacillus. This study isolated a strain of Br. brevis HNCS-1 from tea garden soil, and the strain has an antagonistic effect against five types of pathogens of tea diseases, namely Gloeosporium theae-sinensis, Elsinoe leucospira, Phyllosticta theaefolia, Fusarium sp., and Cercospora theae. To determine the genetic characteristics implicated in the biocontrol mechanism, the genome sequence of the HNCS-1 strain was obtained and analyzed further, and the data are deposited in the GenBank repository (No. CP128411). Comparative genomics analyses revealed that the HNCS-1 strain and 17 public Br. brevis share a core genome composed of 3,742 genes. Interestingly, only one non-ribosomal peptide synthetase (NRPS) gene cluster annotated as edeine is present in the core genome. And UHPLC-MS/MS detection results showd that edeine B and edeine A were the principal antibacterial peptides in the HNCS-1 strain. This study proves that edeine is the main antibacterial peptide of Br. brevis, and provides a new strategy for the identification of antibacterial products from other biocontrol bacteria.
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