Expression of a mycoparasite protease in plant petals suppresses the petal-mediated infection by necrotrophic pathogens
文献类型： 外文期刊
作者： Wang, Yongchun 1 ; Yu, Han 1 ; Xu, Yuping 1 ; Wu, Mingde 1 ; Zhang, Jing 1 ; Tsuda, Kenichi 1 ; Liu, Shengyi 4 ; Jiang, Daohong 1 ; Chen, Weidong 5 ; Wei, Yangdou 6 ; Li, Guoqing 1 ; Yang, Long 1 ;
作者机构： 1.Huazhong Agr Univ, State Key Lab Agr Microbiol, Wuhan, Peoples R China
2.Huazhong Agr Univ, Coll Plant Sci & Technol, Hubei Key Lab Plant Pathol, Wuhan, Peoples R China
3.Hubei Hongshan Lab, Wuhan, Peoples R China
4.Chinese Acad Agr Sci, Oil Crops Res Inst, Key Lab Biol & Genet Improvement Oil Crops, Minist Agr & Rural Affairs, Wuhan, Peoples R China
5.Washington State Univ, ARS, USDA, Pullman, WA USA
6.Univ Saskatchewan, Dept Biol, Saskatoon, SK, Canada
期刊名称：CELL REPORTS （ 影响因子：8.8； 五年影响因子：9.9 ）
ISSN： 2211-1247
年卷期： 2023 年 42 卷 11 期
页码：
收录情况： SCI
摘要： Sclerotinia sclerotiorum and Botrytis cinerea are necrotrophic plant-pathogenic fungi, causing substantial economic losses on many crops. So far, resistant cultivars against these pathogens are unavailable in most crops. Here, we show that the serine protease CmSp1 of Coniothyrium minitans, a well-characterized mycoparasite of S. sclerotiorum, contributed to suppressing the petal-mediated infection by S. sclerotiorum in rapeseed. Application of recombinant CmSp1 proteins facilitates the bulk degradation of S. sclerotiorum proteins and inhibits spore germination and hyphal growth of S. sclerotiorum and B. cinerea, thereby pre-venting the development of both diseases. Stable transgenic rapeseed plants with tissue-specific expression of CmSp1 in flower petals inhibit the petal-mediated infection by both S. sclerotiorum and B. cinerea, and resulting transgenic plants have no adverse effect on other agronomic traits. Thus, our findings provide a novel mechanism by which a mycoparasite inhibits fungal pathogens and an environmentally friendly disease management strategy.
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