Potassium Phosphite Enhances the Antagonistic Capability of Bacillus amyloliquefaciens to Manage Tomato Bacterial Wilt

文献类型： 外文期刊

第一作者： Su, Lv

作者： Su, Lv;Qiu, Pengfei;Fang, Zhiying;Sun, Juan;Mo, Xingxia;Zhang, Ruifu;Shen, Biao;Shen, Qirong;Su, Lv;Liu, Yunpeng;Zhang, Ruifu;Kuramae, Eiko E.;Kuramae, Eiko E.

作者机构：

关键词： agricultural chemical; enhanced antagonism; integrated strategy; soilborne plant pathogen

期刊名称：PLANT DISEASE （ 影响因子：4.614； 五年影响因子：5.33 ）

ISSN： 0191-2917

年卷期： 2022 年 106 卷 2 期

页码：

收录情况： SCI

摘要： Bacterial wilt caused by Ralstonia solanacearum is a distributed and worldwide soilborne disease. The application of biocontrol microbes or agricultural chemicals has been widely used to manage tomato bacterial wilt. However, whether and how agricultural chemicals affect the antagonistic ability of biocontrol microbes is still unknown. Here, we combined potassium phosphite (K-Phite), an environmentally friendly agricultural chemical, and the biocontrol agent Bacillus amyloliquefaciens QPF8 (strain F8) to manage tomato bacterial wilt disease. First, K-Phite at a concentration of 0.05% (wt/vol) could significantly inhibit the growth of R. solanacearum. Second, 0.05% K-Phite enhanced the antagonistic capability of B. amyloliquefaciens F8. Third, the greenhouse soil experiments showed that the control efficiency for tomato bacterial wilt in the combined treatment was significantly higher than that of the application of B. amyloliquefaciens F8 or K-Phite alone. Overall, our results highlighted a novel strategy for the control of tomato bacterial wilt disease via application and revealed a new integrated pattern depending on the enhancement of the antagonistic capability of biocontrol microbes by K-Phite.

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