Grapevine defence mechanisms when challenged by pathogenic fungi and oomycetes

Traditional cultivated grapevine (Vitis vinifera) is susceptible to many fungal and oomycete pathogens causing devastating diseases including powdery mildew, downy mildew, grey mould, black rot and trunk diseases. These infections trigger various defence mechanisms such as reinforcement of the cell...

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Bibliographic Details
Published inAdvances in botanical research Vol. 110; pp. 101 - 195
Main Authors Adrian, Marielle, Corio-Costet, Marie-France, Calonnec, Agnès, Cluzet, Stéphanie, Poinssot, Benoît, Trouvelot, Sophie, Wiedemann-Merdinoglu, Sabine, Viaud, Muriel
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2024
Subjects
Elicitation
Genetic resistance
Induced resistance
Ontogenic resistance
Vitis species
Vitis species
Elicitation
Induced resistance
Ontogenic resistance
Genetic resistance
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Summary:Traditional cultivated grapevine (Vitis vinifera) is susceptible to many fungal and oomycete pathogens causing devastating diseases including powdery mildew, downy mildew, grey mould, black rot and trunk diseases. These infections trigger various defence mechanisms such as reinforcement of the cell wall structure, production of phytoalexins and pathogenesis-related proteins, and localized cell death. In V. vinifera susceptible varieties, these defences are not effective, while in resistant grapevine, recognition of the pathogen induces effective mechanisms that stop the infection. Breeding programmes are conducted to take advantage of this genetic resistance. Moreover, a range of exogenous defence stimulators can be used to obtain a so-called “induced resistance” in susceptible varieties. This chapter presents the recently acquired knowledge on the molecular mechanisms involved in genetic and induced resistances, and further consider other mechanisms such as ontogenic resistance. It also suggests how to exploit these resistances to durably protect vineyards against the different fungal diseases.
ISSN:0065-2296
DOI:10.1016/bs.abr.2024.02.013