Ferroptosis induced by the biocontrol agent Pythium oligandrum enhances soybean resistance to Phytophthora sojae
文献类型： 外文期刊
作者： Cheng, Yang 1 ; Zhang, Huanxin 1 ; Zhu, Wenyi 1 ; Li, Qing 1 ; Meng, Rui 1 ; Yang, Kun 1 ; Guo, Ziqian 1 ; Zhai, Ying 2 ; Zhang, Haijing 3 ; Ji, Rui 4 ; Peng, Hao 2 ; Dou, Daolong 1 ; Jing, Maofeng 1 ;
作者机构： 1.Nanjing Agr Univ, Dept Plant Pathol,Minist Educ, Key Lab Biol Interact & Crop Hlth, Key Lab Integrated Management Crop Dis & Pests, Nanjing, Peoples R China
2.Washington State Univ, Dept Plant Pathol, Pullman, WA 99164 USA
3.Rongcheng Agr & Rural Serv Ctr, Weihai, Peoples R China
4.Minist Sci & Technol, Inst Plant Protect, Jiangsu Acad Agr Sci, Jiangsu Key Lab Food & Safety,State Key Lab Culti, Nanjing, Peoples R China
期刊名称：ENVIRONMENTAL MICROBIOLOGY （ 影响因子：5.476； 五年影响因子：6.82 ）
ISSN： 1462-2912
年卷期：
页码：
收录情况： SCI
摘要： Ferroptosis is a newly discovered form of cell death accompanied by iron accumulation and lipid peroxidation. Both biotic and abiotic stresses can induce ferroptosis in plant cells. In the case of plant interactions with pathogenic Phytophthora oomycetes, the roles of ferroptosis are still largely unknown. Here, we performed transcriptome analysis on soybean plants treated with the biocontrol agent Pythium oligandrum, a soilborne and non-pathogenic oomycete capable of inducing plant resistance against Phytophthora sojae infection. Expression of homologous soybean genes involved in ferroptosis and resistance was reprogrammed upon P. oligandrum treatment. Typical hallmarks for characterizing ferroptosis were detected in soybean hypocotyl cells, including decreased glutathione (GSH) level, accumulation of ferric ions, and lipid peroxidation by reactive oxygen species (ROS). Meanwhile, ferroptosis-like cell death was triggered by P. oligandrum to suppress P. sojae infection in soybean. Protection provided by P. oligandrum could be attenuated by the ferroptosis inhibitor ferrostatin-1 (Fer-1), suggesting the critical role of ferroptosis in soybean resistance against P. sojae. Taken together, these results demonstrate that ferroptosis is a P. oligandrum-inducible defence mechanism against oomycete infection in soybean.
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