Antifungal Mechanism of Metabolites from Newly Isolated Streptomyces sp. Y1-14 against Banana Fusarium Wilt Disease Using Metabolomics

文献类型： 外文期刊

第一作者： Cao, Miaomiao

作者： Cao, Miaomiao;Cheng, Qifeng;Cai, Bingyu;Li, Xiaojuan;Cao, Miaomiao;Cheng, Qifeng;Cai, Bingyu;Chen, Yufeng;Wei, Yongzan;Qi, Dengfeng;Li, Yuqi;Yan, Liu;Li, Xiaojuan;Long, Weiqiang;Liu, Qiao;Xie, Jianghui;Wang, Wei;Li, Yuqi;Yan, Liu;Long, Weiqiang;Liu, Qiao

作者机构：

关键词： Streptomyces sp; banana Fusarium wilt; antifungal mechanism; GC-MS; metabolomics

期刊名称：JOURNAL OF FUNGI （ 影响因子：5.724； 五年影响因子：6.413 ）

ISSN：

年卷期： 2022 年 8 卷 12 期

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收录情况： SCI

摘要： Banana Fusarium wilt caused by Fusarium oxysporum f. sp. cubense tropical race 4 (Foc TR4) is one of the most destructive banana diseases in the world, which limits the development of the banana industry. Compared with traditional physical and chemical practices, biological control becomes a promising safe and efficient strategy. In this study, strain Y1-14 with strong antagonistic activity against Foc TR4 was isolated from the rhizosphere soil of a banana plantation, where no disease symptom was detected for more than ten years. The strain was identified as Streptomyces according to the morphological, physiological, and biochemical characteristics and the phylogenetic tree of 16S rRNA. Streptomyces sp. Y1-14 also showed a broad-spectrum antifungal activity against the selected 12 plant pathogenic fungi. Its extracts inhibited the growth and spore germination of Foc TR4 by destroying the integrity of the cell membrane and the ultrastructure of mycelia. Twenty-three compounds were identified by gas chromatography-mass spectrometry (GC-MS). The antifungal mechanism was investigated further by metabolomic analysis. Strain Y1-14 extracts significantly affect the carbohydrate metabolism pathway of Foc TR4 by disrupting energy metabolism.

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