Heat-killed endophytic bacterium induces robust plant defense responses against important pathogens

作者：Roxana Portieles, Hongli Xu, Qiulin Yue, Lin Zhao, Dening Zhang, Li‐Hua Du, Xiangyou Gao, Jingyao Gao, Nayanci Portal González, Ramón Santos, Orlando Borrás‐Hidalgo · 发表于：Scientific Reports · 年份：2021 · DOI：10.1038/s41598-021-91837-5 · 被引用次数：30 · 研究领域：Plant-Microbe Interactions and Immunity、Plant Pathogenic Bacteria Studies、Plant Virus Research Studies

Stress caused by pathogens strongly damages plants. Developing products to control plant disease is an important challenge in sustainable agriculture. In this study, a heat-killed endophytic bacterium (HKEB), Bacillus aryabhattai, is used to induce plant defense against fungal and bacterial pathogens, and the main defense pathways used by the HKEB to activate plant defense are revealed. The HKEB induced high protection against different pathogens through the salicylic and jasmonic acid pathways. We report the presence of gentisic acid in the HKEB for the first time. These results show that HKEBs may be a useful tool for the management of plant diseases.