Critical Secondary Metabolites Confer the Broad-Spectrum Pathogenic Fungi Resistance Property of a Marine-Originating Streptomyces sp. HNBCa1
文献类型： 外文期刊
作者： Xiong, Zijun 1 ; Xia, Tengfei 2 ; Wu, Weicheng 1 ; Wang, Rong 4 ; Qi, Min 1 ; Zhang, Shiqing 1 ; Li, Jitao 3 ; Yang, Yang 5 ; Zheng, Daojun 2 ; Lin, Shuangjun 6 ; Guo, Zhikai 1 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Hainan Key Lab Trop Microbe Resources, Hainan Inst Trop Agr Resources,Key Lab Biol & Gene, Haikou 571101, Hainan, Peoples R China
2.Hainan Acad Agr Sci, Inst Trop Hort Res, Haikou 571100, Peoples R China
3.Hubei Minzu Univ, Coll Forestry & Hort, Enshi 445000, Hubei, Peoples R China
4.Hainan Acad Ocean & Fisheries Sci, Hainan Prov Key Lab Trop Maricultural Technol, Haikou 571126, Hainan, Peoples R China
5.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Haikou 571101, Hainan, Peoples R China
6.Shanghai Jiao Tong Univ, Sch Life Sci & Biotechnol, State Key Lab Microbial Metab, Shanghai 200240, Peoples R China
关键词： broad-spectrum resistance; secondary metabolites; pathogenic fungi; antifungal activity; biocontrol
期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.1； 五年影响因子：6.3 ）
ISSN： 0021-8561
年卷期： 2024 年 72 卷 23 期
页码：
收录情况： SCI
摘要： Obtaining a microorganism strain with a broad-spectrum resistance property and highly efficient antifungal activity is important to the biocontrol strategy. Herein, a marine Streptomyces sp. HNBCa1 demonstrated a broad-spectrum resistance to 17 tested crop pathogenic fungi and exhibited a high biocontrol efficiency against mango anthracnose and banana fusarium wilt. To uncover the critical bioactive secondary metabolites basis, genome assembly and annotation, metabolomic analysis, and a semipreparative HPLC-based activity-guide method were employed. Finally, geldanamycin and ectoine involved in codifferential secondary metabolites were also found to be related to biosynthetic gene clusters in the genome of HNBCa1. Reblastatin and geldanamycin were uncovered in response to broad-spectrum resistance to the 17 crop pathogenic fungi. Our results suggested that reblastatin and geldanamycin were critical to maintaining the broad-spectrum resistance property and highly efficient antifungal activity of HNBCa1, which could be further developed as a biological control agent to control crop fungal diseases.
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