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- W4386345908 abstract "Abstract Grape white rot is a disease caused by Coniella diplodiella (Speg.) Sacc. (Cd) can drastically reduce the production and quality of grape (Vitis vinifera). WRKY transcription factors play a vital role in the regulation of plant resistance to pathogens, but their functions in grape white rot need to be further explored. Here, we found that the expression of the WRKY IIe subfamily member, VvWRKY5, was highly induced by Cd infection and JA treatment. Transient injection and stable overexpression (in grape calli and Arabidopsis) demonstrated that VvWRKY5 positively regulated grape resistance to white rot. We also determined that VvWRKY5 regulated the JA response by directly binding to the promoters of VvJAZ2 (a JA signaling suppressor) and VvMYC2 (a JA signaling activator), thereby inhibiting and activating the transcription of VvJAZ2 and VvMYC2, respectively. Furthermore, the interaction between VvJAZ2 and VvWRKY5 enhanced the suppression and activation of VvWRKY5 on VvJAZ2 and VvMYC2 activities, respectively. When VvWRKY5 was overexpressed in grape, JA content was also increased. Overall, our results suggested that VvWRKY5 played a key role in regulating JA biosynthesis and signal transduction as well as enhancing white rot resistance in grape. Our results also provide theoretical guidance for the development of elite grape cultivars with enhanced pathogen resistance." @default.
- W4386345908 created "2023-09-01" @default.
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- W4386345908 date "2023-08-29" @default.
- W4386345908 modified "2023-09-27" @default.
- W4386345908 title "VvWRKY5 enhances white rot resistance in grape by promoting the jasmonic acid pathway" @default.
- W4386345908 doi "https://doi.org/10.1093/hr/uhad172" @default.
- W4386345908 hasPublicationYear "2023" @default.
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