Whole genome analysis of Bacillus amyloliquefaciens TA-1, a promising biocontrol agent against Cercospora arachidicola pathogen of early leaf spot in Arachis hypogaea L
文献类型: 外文期刊
作者: Wang, Chen 1 ; Ahsan, Taswar 2 ; Ding, Ao 1 ; Han, Di 1 ; Zang, Chao-Qun 2 ; Huang, Yu-Qian 1 ; Hussain, Khalid 3 ;
作者机构: 1.Shenyang Agr Univ, Plant Protect Coll, Shenyang 110866, Peoples R China
2.Liaoning Acad Agr Sci, Inst Plant Protect, Shenyang 110161, Peoples R China
3.Univ Gujrat, Dept Bot, Gujrat 50700, Pakistan
关键词: Peanut early leaf spot; Cercospora arachidicola; Bacillus amyloliquefaciens; Biocontrol; Secondary metabolites
期刊名称:BMC PLANT BIOLOGY ( 影响因子:5.3; 五年影响因子:5.9 )
ISSN: 1471-2229
年卷期: 2023 年 23 卷 1 期
页码:
收录情况: SCI
摘要: Background Early leaf spot disease, caused by Cercospora arachidicola, is a devastating peanut disease that has severely impacted peanut production and quality. Chemical fungicides pollute the environment; however, Bacillus bacteria can be used as an environmentally friendly alternative to chemical fungicides. To understand the novel bacterial strain and unravel its molecular mechanism, De novo whole-genome sequencing emerges as a rapid and efficient omics approach. Results In the current study, we identified an antagonistic strain, Bacillus amyloliquefaciensTA-1. In-vitro assay showed that the TA-1 strain was a strong antagonist against C. arachidicola, with an inhibition zone of 88.9 mm. In a greenhouse assay, results showed that the TA-1 strain had a significant biocontrol effect of 95% on peanut early leaf spot disease. De novo whole-genome sequencing analysis, shows that strain TA-1 has a single circular chromosome with 4172 protein-coding genes and a 45.91% guanine and cytosine (GC) content. Gene function was annotated using non-redundant proteins from the National Center for Biotechnology Information (NCBI), Swiss-Prot, the Kyoto Encyclopedia of Genes and Genomes (KEGG), clusters of orthologous groups of proteins, gene ontology, pathogen-host interactions, and carbohydrate-active enZYmes. antiSMASH analysis predicted that strain TA-1 can produce the secondary metabolites siderophore, tailcyclized peptide, myxochelin, bacillibactin, paenibactin, myxochelin, griseobactin, benarthin, tailcyclized, and samylocyclicin.Conclusion The strain TA-1 had a significant biological control effect against peanut early leaf spot disease in-vitro and in greenhouse assays. Whole genome analysis revealed that, TA-1 strain belongs to B. amyloliquefaciens and could produce the antifungal secondary metabolites.
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