Increased anion channel activity is an unavoidable event in ozone-induced programmed cell death.

<h4>Background</h4>Ozone is a major secondary air pollutant often reaching high concentrations in urban areas under strong daylight, high temperature and stagnant high-pressure systems. Ozone in the troposphere is a pollutant that is harmful to the plant.<h4>Principal findings</...

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Autores principales:	Takashi Kadono, Daniel Tran, Rafik Errakhi, Takuya Hiramatsu, Patrice Meimoun, Joël Briand, Mari Iwaya-Inoue, Tomonori Kawano, François Bouteau
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2010
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/05605942f3a54387ab022b8ce9fdb905
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spelling	oai:doaj.org-article:05605942f3a54387ab022b8ce9fdb9052021-11-18T07:03:22ZIncreased anion channel activity is an unavoidable event in ozone-induced programmed cell death.1932-620310.1371/journal.pone.0013373https://doaj.org/article/05605942f3a54387ab022b8ce9fdb9052010-10-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/20967217/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Ozone is a major secondary air pollutant often reaching high concentrations in urban areas under strong daylight, high temperature and stagnant high-pressure systems. Ozone in the troposphere is a pollutant that is harmful to the plant.<h4>Principal findings</h4>By exposing cells to a strong pulse of ozonized air, an acute cell death was observed in suspension cells of Arabidopsis thaliana used as a model. We demonstrated that O(3) treatment induced the activation of a plasma membrane anion channel that is an early prerequisite of O(3)-induced cell death in A. thaliana. Our data further suggest interplay of anion channel activation with well known plant responses to O(3), Ca(2+) influx and NADPH-oxidase generated reactive oxygen species (ROS) in mediating the oxidative cell death. This interplay might be fuelled by several mechanisms in addition to the direct ROS generation by O(3); namely, H(2)O(2) generation by salicylic and abscisic acids. Anion channel activation was also shown to promote the accumulation of transcripts encoding vacuolar processing enzymes, a family of proteases previously reported to contribute to the disruption of vacuole integrity observed during programmed cell death.<h4>Significance</h4>Collectively, our data indicate that anion efflux is an early key component of morphological and biochemical events leading to O(3)-induced programmed cell death. Because ion channels and more specifically anion channels assume a crucial position in cells, an understanding about the underlying role(s) for ion channels in the signalling pathway leading to programmed cell death is a subject that warrants future investigation.Takashi KadonoDaniel TranRafik ErrakhiTakuya HiramatsuPatrice MeimounJoël BriandMari Iwaya-InoueTomonori KawanoFrançois BouteauPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 5, Iss 10, p e13373 (2010)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Takashi Kadono Daniel Tran Rafik Errakhi Takuya Hiramatsu Patrice Meimoun Joël Briand Mari Iwaya-Inoue Tomonori Kawano François Bouteau Increased anion channel activity is an unavoidable event in ozone-induced programmed cell death.
description	<h4>Background</h4>Ozone is a major secondary air pollutant often reaching high concentrations in urban areas under strong daylight, high temperature and stagnant high-pressure systems. Ozone in the troposphere is a pollutant that is harmful to the plant.<h4>Principal findings</h4>By exposing cells to a strong pulse of ozonized air, an acute cell death was observed in suspension cells of Arabidopsis thaliana used as a model. We demonstrated that O(3) treatment induced the activation of a plasma membrane anion channel that is an early prerequisite of O(3)-induced cell death in A. thaliana. Our data further suggest interplay of anion channel activation with well known plant responses to O(3), Ca(2+) influx and NADPH-oxidase generated reactive oxygen species (ROS) in mediating the oxidative cell death. This interplay might be fuelled by several mechanisms in addition to the direct ROS generation by O(3); namely, H(2)O(2) generation by salicylic and abscisic acids. Anion channel activation was also shown to promote the accumulation of transcripts encoding vacuolar processing enzymes, a family of proteases previously reported to contribute to the disruption of vacuole integrity observed during programmed cell death.<h4>Significance</h4>Collectively, our data indicate that anion efflux is an early key component of morphological and biochemical events leading to O(3)-induced programmed cell death. Because ion channels and more specifically anion channels assume a crucial position in cells, an understanding about the underlying role(s) for ion channels in the signalling pathway leading to programmed cell death is a subject that warrants future investigation.
format	article
author	Takashi Kadono Daniel Tran Rafik Errakhi Takuya Hiramatsu Patrice Meimoun Joël Briand Mari Iwaya-Inoue Tomonori Kawano François Bouteau
author_facet	Takashi Kadono Daniel Tran Rafik Errakhi Takuya Hiramatsu Patrice Meimoun Joël Briand Mari Iwaya-Inoue Tomonori Kawano François Bouteau
author_sort	Takashi Kadono
title	Increased anion channel activity is an unavoidable event in ozone-induced programmed cell death.
title_short	Increased anion channel activity is an unavoidable event in ozone-induced programmed cell death.
title_full	Increased anion channel activity is an unavoidable event in ozone-induced programmed cell death.
title_fullStr	Increased anion channel activity is an unavoidable event in ozone-induced programmed cell death.
title_full_unstemmed	Increased anion channel activity is an unavoidable event in ozone-induced programmed cell death.
title_sort	increased anion channel activity is an unavoidable event in ozone-induced programmed cell death.
publisher	Public Library of Science (PLoS)
publishDate	2010
url	https://doaj.org/article/05605942f3a54387ab022b8ce9fdb905
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Increased anion channel activity is an unavoidable event in ozone-induced programmed cell death.

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