Tacrolimus analogue produced by Bacillus amyloliquefaciens HSSN09 suppresses watermelon Fusarium wilt by antagonizing FON
文献类型： 外文期刊
第一作者： Yang, Bing -Ye
作者： Yang, Bing -Ye;Yang, Ji-Xiao;Wang, Gang;Dong, Wen -Pan;Xu, Pei -Ling;Zheng, Ying;Guo, Jian-Hua;Niu, Dong-Dong;Jiang, Chun-Hao;Yang, Bing -Ye;Yang, Ji-Xiao;Wang, Gang;Dong, Wen -Pan;Xu, Pei -Ling;Zheng, Ying;Guo, Jian-Hua;Niu, Dong-Dong;Jiang, Chun-Hao;Yu, Yi-Yang;Yang, Wei;Luo, Yu -Ming;Niu, Dong-Dong;Jiang, Chun-Hao;Yao, Xie-Feng;Xu, Jin-Hua;Yu, Yi-Yang;Jiang, Chun-Hao
作者机构：
关键词： Bacillus amyloliquefaciens; Fusarium oxysporum; Biocontrol mechanism; Secondary metabolites; Tacrolimus
期刊名称：BIOLOGICAL CONTROL （ 影响因子：4.2； 五年影响因子：4.1 ）
ISSN： 1049-9644
年卷期： 2024 年 189 卷
页码：
收录情况： SCI
摘要： Watermelon Fusarium wilt caused by Fusarium oxysporum f. sp. niveum (FON) is one of the most devastating diseases in watermelon production. Biological control approaches are efficient and environmentally -friendly, thus have aroused broad interest. However, only a few biocontrol factors/molecules have been characterized due to varied genomes and diversified secreted secondary metabolites of biocontrol microorganisms. We report the screen and identification of a Bacillus amyloliquefaciens strain HSSN09 with high antagonism to FON and watermelon growth promotion capacity. B. amyloliquefaciens HSSN09 and its secondary metabolites showed inhibition on FON mycelial growth, spore formation and spore germination. Metabolomes of the highly antagonistic strain B. amyloliquefaciens HSSN09, medium antagonistic strain B. amyloliquefaciens FGW53, weakly antagonistic strain B. subtilis JC03 and non -antagonistic strain B. cereus FGW109 were compared with LC-MS/MS. By antagonistic assay, tacrolimus was screened out among the 531 molecules that appeared in the sequencing results of HSSN09 metabolome but not in that of the non -antagonistic strain without significant inhibition on the growth of FON. Among the four tested Bacillus strains, tacrolimus analogue was only observed in the supernatant of HSSN09 by HPLC and MALDI-TOF-MS. We further confirmed the ability of tacrolimus to suppress FON and promote watermelon seedling growth.
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