A Plant Extract Acts Both as a Resistance Inducer and an Oomycide Against Grapevine Downy Mildew

Protecting vineyards from cryptogamic diseases such as downy mildew, caused by , generally requires a massive use of phytochemicals. However, the issues on unintentional secondary effects on environment and human health, and the occurrence of resistant strains, are leading to the development of alte...

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Vydáno v:	Frontiers in Plant Science Ročník 9; s. 1085 - 14
Hlavní autoři:	Krzyzaniak, Yuko, Trouvelot, Sophie, Negrel, Jonathan, Cluzet, Stéphanie, Valls, Josep, Richard, Tristan, Bougaud, Ambrine, Jacquens, Lucile, Klinguer, Agnès, Chiltz, Annick, Adrian, Marielle, Heloir, Marie-Claire
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Switzerland Frontiers Media SA 25.07.2018 Frontiers Frontiers Media S.A
Témata:	[SDE]Environmental Sciences [SDV.BV]Life Sciences [q-bio]/Vegetal Biology [SDV.IDA]Life Sciences [q-bio]/Food engineering [SDV]Life Sciences [q-bio] [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering Airborne microorganisms biocontrol Biological control Cell suspensions Chemical and Process Engineering Downy mildew Engineering Sciences Environmental effects Environmental Sciences Essential oils Experiments Food engineering Gene expression Gene regulation Grapevines Hydrogen peroxide induced resistance Life Sciences oomycide Pathogenesis Pathogenesis-related proteins Pathogens Plant culture Plant extracts plant protection Plant Science Plasmopara viticola Resveratrol SB1-1110 Stilbene Stilbene synthase Stomata Toxicity Vegetal Biology Vitis vinifera Wineries & vineyards Zoospores France induced resistance elicitor Plasmopara viticola Vitis vinifera biocontrol oomycide plant protection
ISSN:	1664-462X, 1664-462X
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Shrnutí:	Protecting vineyards from cryptogamic diseases such as downy mildew, caused by , generally requires a massive use of phytochemicals. However, the issues on unintentional secondary effects on environment and human health, and the occurrence of resistant strains, are leading to the development of alternative strategies, such as the use of biocontrol products. In this paper, we evidenced the ability of a plant extract to protect grapevine from . Further experiments carried out both on cell suspensions and on plants revealed that plant extract activates typical defense-related responses such as the production of H O , the up-regulation of genes encoding pathogenesis-related proteins and stilbene synthase, as well as the accumulation of resveratrol or its derivative piceid. We also brought to light a strong direct effect of PE on the release and motility of zoospores. Furthermore, we found out that PE application left dried residues on leaf surface, impairing zoospores to reach stomata. Altogether, our results highlight the different modes of action of a new biocontrol product able to protect grapevine against downy mildew.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23 Edited by: Yi Li, Peking University, China This article was submitted to Plant Microbe Interactions, a section of the journal Frontiers in Plant Science Reviewed by: Stéphane Compant, Austrian Institute of Technology, Austria; Mostafa Abdelwahed Abdelrahman, Tottori University, Japan
ISSN:	1664-462X 1664-462X
DOI:	10.3389/fpls.2018.01085