PnSCR82,a small cysteine-rich secretory protein of Phytophthora nicotianae,can enhance defense responses in plants

作     者：WANG Ya-di LI Fei ZHANG Xin LIU Ting-li LIANG Wen-xing LI De-long WANG Ya-di;LI Fei;ZHANG Xin;LIU Ting-li;LIANG Wen-xing;LI De-long

作者机构：College of Plant Health and MedicineKey Laboratory of Integrated Crop Pest Management of Shandong ProvinceQingdao Agricultural UniversityQingdao 266109P.R.China Hunan Academy of Agricultural SciencesChangsha 410125P.R.China Provincial key laboratory of agrobiologyJiangsu Academy of Agricultural SciencesNanjing 210014P.R.China 

出 版 物：《Journal of Integrative Agriculture》 (农业科学学报（英文版）)

年 卷 期：2022年第21卷第3期

页      面：751-761页

核心收录：

学科分类：09[农学] 0904[农学-植物保护] 090401[农学-植物病理学] 0901[农学-作物学] 

基　　金：supported by the National Natural Science Foundation of China(31972218,31501590,and 31601615) the Program for Talents in Qingdao Agricultural University,China(6631114307) the Independent Innovation of Agricultural Sciences in Jiangsu Province,China(CX(18)3012)。 

主　　题：small cysteine-rich secretory protein defense responses resistance 

摘      要：A number of plant pathogenic species of Phytophthora are known to produce different classes of secretory proteins during interactions with their hosts.Although several small cysteine-rich(SCR)secretory proteins,conserved in oomycete pathogens,have been identified in Phytophthora,their specific involvement in these interactions remains unknown.In this study,an SCR effector encoded by Pn SCR82 in P.nicotianae was identified and shown to have similarities to P.cactorum phytotoxic protein,Pc F(Phytophthora cactorum Fragaria).Agroinfection with potato virus X vector,Pn SCR82,was capable of inducing plant hypersensitive cell death in Nicotiana benthamiana and Solanum lycopersicum.Real-time PCR results indicated that transiently expressed Pn SCR82 in N.benthamiana leaves activated the jasmonate,salicylic acid and ethylene signaling pathways.Transient expression of Pn SCR82 enhanced plant resisitance to P.capsici.In summary,our results demonstrated that P.nicotianae Pn SCR82 elicits defensive responses in N.benthamiana and may potentially play a significant role in future crop protection programs.