The phytoalexin resveratrol regulates the initiation of hypersensitive cell death in Vitis cell.

Resveratrol is a major phytoalexin produced by plants in response to various stresses and promotes disease resistance. The resistance of North American grapevine Vitis rupestris is correlated with a hypersensitive reaction (HR), while susceptible European Vitis vinifera cv. 'Pinot Noir' do...

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Autores principales:	Xiaoli Chang, Ernst Heene, Fei Qiao, Peter Nick
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2011
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/176cb8631d644e458551f1e36d5a059e
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spelling	oai:doaj.org-article:176cb8631d644e458551f1e36d5a059e2021-11-18T07:35:29ZThe phytoalexin resveratrol regulates the initiation of hypersensitive cell death in Vitis cell.1932-620310.1371/journal.pone.0026405https://doaj.org/article/176cb8631d644e458551f1e36d5a059e2011-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22053190/?tool=EBIhttps://doaj.org/toc/1932-6203Resveratrol is a major phytoalexin produced by plants in response to various stresses and promotes disease resistance. The resistance of North American grapevine Vitis rupestris is correlated with a hypersensitive reaction (HR), while susceptible European Vitis vinifera cv. 'Pinot Noir' does not exhibit HR, but expresses basal defence. We have shown previously that in cell lines derived from the two Vitis species, the bacterial effector Harpin induced a rapid and sensitive accumulation of stilbene synthase (StSy) transcripts, followed by massive cell death in V. rupestris. In the present work, we analysed the function of the phytoalexin resveratrol, the product of StSy. We found that cv. 'Pinot Noir' accumulated low resveratrol and its glycoside trans-piceid, whereas V. rupestris produced massive trans-resveratrol and the toxic oxidative δ-viniferin, indicating that the preferred metabolitism of resveratrol plays role in Vitis resistance. Cellular responses to resveratrol included rapid alkalinisation, accumulation of pathogenesis-related protein 5 (PR5) transcripts, oxidative burst, actin bundling, and cell death. Microtubule disruption and induction of StSy were triggered by Harpin, but not by resveratrol. Whereas most responses proceeded with different amplitude for the two cell lines, the accumulation of resveratrol, and the competence for resveratrol-induced oxidative burst differed in quality. The data lead to a model, where resveratrol, in addition to its classical role as antimicrobial phytoalexin, represents an important regulator for initiation of HR-related cell death.Xiaoli ChangErnst HeeneFei QiaoPeter NickPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 10, p e26405 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xiaoli Chang Ernst Heene Fei Qiao Peter Nick The phytoalexin resveratrol regulates the initiation of hypersensitive cell death in Vitis cell.
description	Resveratrol is a major phytoalexin produced by plants in response to various stresses and promotes disease resistance. The resistance of North American grapevine Vitis rupestris is correlated with a hypersensitive reaction (HR), while susceptible European Vitis vinifera cv. 'Pinot Noir' does not exhibit HR, but expresses basal defence. We have shown previously that in cell lines derived from the two Vitis species, the bacterial effector Harpin induced a rapid and sensitive accumulation of stilbene synthase (StSy) transcripts, followed by massive cell death in V. rupestris. In the present work, we analysed the function of the phytoalexin resveratrol, the product of StSy. We found that cv. 'Pinot Noir' accumulated low resveratrol and its glycoside trans-piceid, whereas V. rupestris produced massive trans-resveratrol and the toxic oxidative δ-viniferin, indicating that the preferred metabolitism of resveratrol plays role in Vitis resistance. Cellular responses to resveratrol included rapid alkalinisation, accumulation of pathogenesis-related protein 5 (PR5) transcripts, oxidative burst, actin bundling, and cell death. Microtubule disruption and induction of StSy were triggered by Harpin, but not by resveratrol. Whereas most responses proceeded with different amplitude for the two cell lines, the accumulation of resveratrol, and the competence for resveratrol-induced oxidative burst differed in quality. The data lead to a model, where resveratrol, in addition to its classical role as antimicrobial phytoalexin, represents an important regulator for initiation of HR-related cell death.
format	article
author	Xiaoli Chang Ernst Heene Fei Qiao Peter Nick
author_facet	Xiaoli Chang Ernst Heene Fei Qiao Peter Nick
author_sort	Xiaoli Chang
title	The phytoalexin resveratrol regulates the initiation of hypersensitive cell death in Vitis cell.
title_short	The phytoalexin resveratrol regulates the initiation of hypersensitive cell death in Vitis cell.
title_full	The phytoalexin resveratrol regulates the initiation of hypersensitive cell death in Vitis cell.
title_fullStr	The phytoalexin resveratrol regulates the initiation of hypersensitive cell death in Vitis cell.
title_full_unstemmed	The phytoalexin resveratrol regulates the initiation of hypersensitive cell death in Vitis cell.
title_sort	phytoalexin resveratrol regulates the initiation of hypersensitive cell death in vitis cell.
publisher	Public Library of Science (PLoS)
publishDate	2011
url	https://doaj.org/article/176cb8631d644e458551f1e36d5a059e
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The phytoalexin resveratrol regulates the initiation of hypersensitive cell death in Vitis cell.

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