Kasugamycin disrupts membrane transport and reduces virulence in Pectobacterium aroidearum to control konjac soft rot

文献类型： 外文期刊

第一作者： Xiong, Chunlan

作者： Xiong, Chunlan;Zhou, Xue;Zhu, Yu;Du, Xiaojuan;Li, Kaihuai;Liu, Fengquan;Xiong, Chunlan;Zhou, Xue;Zhu, Yu;Du, Xiaojuan;Li, Kaihuai;Liu, Fengquan;Tu, Yupei;Li, Kaihuai;Liu, Fengquan

作者机构：

关键词： Konjac; Soft rot; Pectobacterium aroidearum; Kasugamycin; Antibacterial activity

期刊名称：PHYTOPATHOLOGY RESEARCH （ 影响因子：3.5； 五年影响因子：3.9 ）

ISSN： 2096-5362

年卷期： 2025 年 7 卷 1 期

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收录情况： SCI

摘要： Konjac (Amorphophallus konjac) is an important food crop and a traditional medicinal herb in China. However, bacterial soft rot poses a serious threat to konjac production and quality. In this study, we identified Pectobacterium aroidearum as the causative pathogen of soft rot in konjac and investigated the antibacterial effects of kasugamycin (KSM) against this bacterium. Our results show that KSM exhibits strong antibacterial activity, significantly reducing the virulence of P. aroidearum and providing both protective and curative effects against konjac soft rot. Further mechanistic analysis reveal that KSM disrupts key gene expression associated with membrane transport in P. aroidearum, leading to inhibited swimming motility, reduced production of virulence factors, and significant alterations in cell morphology. These findings highlight the antibacterial properties of KSM against P. aroidearum, offering valuable insights into its potential application for treating bacterial soft rot in konjac.

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