Grapevine Vp PR 10.1 functions in resistance to Plasmopara viticola through triggering a cell death‐like defence response by interacting with Vp VDAC 3

作者：Hui Ma, Gaoqing Xiang, Zhiqian Li, Yuting Wang, Mengru Dou, Su Li, Xiao Yin, Ruiqi Liu, Yuejin Wang, Yan Xu · 发表于：Plant Biotechnology Journal · 年份：2018 · DOI：10.1111/pbi.12891 · 被引用次数：56 · 研究领域：Plant-Microbe Interactions and Immunity、Plant Stress Responses and Tolerance、Plant Pathogens and Fungal Diseases

As one of the most serious diseases in grape, downy mildew caused by Plasmopara viticola is a worldwide grape disease. Much effort has been focused on improving susceptible grapevine resistance, and wild resistant grapevine species are important for germplasm improvement of commercial cultivars. Using yeast two-hybrid screen followed by a series of immunoprecipitation experiments, we identified voltage-dependent anion channel 3 (VDAC3) protein from Vitis piasezkii 'Liuba-8' as an interacting partner of VpPR10.1 cloned from Vitis pseudoreticulata 'Baihe-35-1', which is an important germplasm for its resistance to a range of pathogens. Co-expression of VpPR10.1/VpVDAC3 induced cell death in Nicotiana benthamiana, which accompanied by ROS accumulation. VpPR10.1 transgenic grapevine line showed resistance to P. viticola. We conclude that the VpPR10.1/VpVDAC3 complex is responsible for cell death-mediated defence response to P. viticola in grapevine.