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Πεδίο DCΤιμήΓλώσσα
dc.contributor.authorFotopoulos, Vasileios-
dc.contributor.authorSanmartin, Maite-
dc.contributor.authorKanellis, Angelos K.-
dc.contributor.otherΦωτόπουλος, Βασίλειος-
dc.date.accessioned2009-09-29T09:16:14Zen
dc.date.accessioned2013-05-16T06:25:20Z-
dc.date.accessioned2015-12-02T09:32:34Z-
dc.date.available2009-09-29T09:16:14Zen
dc.date.available2013-05-16T06:25:20Z-
dc.date.available2015-12-02T09:32:34Z-
dc.date.issued2006-11-
dc.identifier.citationJournal of Experimental Botany, Volume 57, Issue 14, November 2006, Pages 3933-3943en_US
dc.identifier.issn14602431-
dc.identifier.urihttps://hdl.handle.net/20.500.14279/1986-
dc.descriptionResearch paperen_US
dc.description.abstractAscorbate oxidase (AO) is a cell wall-localized enzyme that uses oxygen to catalyse the oxidation of ascorbate (AA) to the unstable radical monodehydroascorbate (MDHA) which rapidly disproportionates to yield dehydroascorbate (DHA) and AA, and thus contributes to the regulation of the AA redox state. Here, it is reported that in vivo lowering of the apoplast AA redox state, through increased AO expression in transgenic tobacco (Nicotiana tabacum L. cv. Xanthi), exerts no effects on the expression levels of genes involved in AA recycling under normal growth conditions, but plants display enhanced sensitivity to various oxidative stress-promoting agents. RNA blot analyses suggest that this response correlates with a general suppression of the plant's antioxidative metabolism as demonstrated by lower expression levels of AA recycling genes. Furthermore, studies using Botrytis cinerea reveal that transgenic plants exhibit increased sensitivity to fungal infection, although the response is not accompanied by a similar suppression of AA recycling gene expression. Our current findings, combined with previous studies which showed the contribution of AO in the regulation of AA redox state, suggest that the reduction in the AA redox state in the leaf apoplast of these transgenic plants results in shifts in their capacity to withstand oxidative stress imposed by agents imposing oxidative stress.en_US
dc.formatpdfen_US
dc.language.isoenen_US
dc.relation.ispartofJournal of Experimental Botanyen_US
dc.rightsThe Author [2006]en_US
dc.subjectApoplasten_US
dc.subjectAscorbate oxidaseen_US
dc.subjectBiotic stressen_US
dc.subjectBotrytis cinereaen_US
dc.subjectOxidative stressen_US
dc.subjectTransgenic plantsen_US
dc.titleEffect of ascorbate oxidase over-expression on ascorbate recycling gene expression in response to agents imposing oxidative stressen_US
dc.typeArticleen_US
dc.affiliationAristotle University of Thessalonikien
dc.collaborationAristotle University of Thessalonikien_US
dc.collaborationCentro Nacional de Biotecnologíaen_US
dc.subject.categoryAGRICULTURAL SCIENCESen_US
dc.subject.categoryAgricultural Biotechnologyen_US
dc.subject.categoryOther Agricultural Sciencesen_US
dc.journalsOpen Accessen_US
dc.subject.fieldAgricultural Sciencesen_US
dc.publicationPeer Revieweden_US
dc.identifier.doi10.1093/jxb/erl147en_US
dc.dept.handle123456789/54en
cut.common.academicyear2006-2007en_US
item.fulltextWith Fulltext-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.cerifentitytypePublications-
item.openairetypearticle-
crisitem.journal.journalissn1460-2431-
crisitem.journal.publisherOxford University Press-
crisitem.author.deptDepartment of Agricultural Sciences, Biotechnology and Food Science-
crisitem.author.facultyFaculty of Geotechnical Sciences and Environmental Management-
crisitem.author.orcid0000-0003-1205-2070-
crisitem.author.parentorgFaculty of Geotechnical Sciences and Environmental Management-
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