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Tissue Localization and Distribution of As and Al in the Halophyte Tamarix gallica under Controlled Conditions

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dc.contributor.authorSghaier, Dhouha Belhaj
dc.contributor.authorPedro, Silvia
dc.contributor.authorDiniz, Mário Sousa
dc.contributor.authorDuarte, Bernardo
dc.contributor.authorCaçador, Isabel
dc.contributor.authorSleimi, Noomene
dc.date.accessioned2019-06-25T09:45:16Z
dc.date.available2019-06-25T09:45:16Z
dc.date.issued2016
dc.description.abstractInformation on localization of Al and As in Tamarix gallica is required in order to better understand the detoxification mechanisms that confer tolerance in this halophyte plant species. Plants were subjected to different Al and As concentrations with and without salt supplementation. High concentrations of As and Al have been found in Tamarix gallica leaves and roots without symptoms of toxicity to the plant, which may be related to the particular compartmentation. A sequential extraction was carried out on leaves and roots to determine and to compare the metal compartmentation in the plant. In this study, subcellular localization of As and Al was determined for the first time in roots and leaves of T. gallica, and provided evidence of the detoxification mechanisms of high As and Al concentrations. These results suggest that the subcellular distribution of As and Al play important roles in avoidance of metal toxicity. The most part of Al (that has high toxicity to the plant when available forms are present) was immobilized in cell wall, potentially suppressing its transportation to other subcellular compartments more susceptible to Al toxicity. On the other hand, the greater sequestration of As in the vacuole reduces its toxicity to the remaining cell organelles in the roots, but cell wall confinement remains an important tolerant mechanism in the leaves.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3389/fmars.2016.00274pt_PT
dc.identifier.issn2296-7745
dc.identifier.urihttp://hdl.handle.net/10451/38793
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relation.publisherversionhttps://www.frontiersin.org/articles/10.3389/fmars.2016.00274/fullpt_PT
dc.subjectarsenicpt_PT
dc.subjectaluminumpt_PT
dc.subjectcellular compartmentationpt_PT
dc.subjectdetoxificationpt_PT
dc.subjectTamarix gallicapt_PT
dc.titleTissue Localization and Distribution of As and Al in the Halophyte Tamarix gallica under Controlled Conditionspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage274pt_PT
oaire.citation.titleFrontiers in Marine Sciencept_PT
oaire.citation.volume3pt_PT
person.familyNamePedro
person.familyNameDuarte
person.familyNameCaçador
person.givenNameSilvia
person.givenNameBernardo
person.givenNameIsabel
person.identifier89449
person.identifier.ciencia-id731E-093F-D4C8
person.identifier.ciencia-id631C-9FFE-CA81
person.identifier.orcid0000-0001-6289-0545
person.identifier.orcid0000-0003-1914-7435
person.identifier.orcid0000-0002-4475-6091
person.identifier.ridB-4199-2012
person.identifier.ridH-2001-2011
person.identifier.ridC-2618-2012
person.identifier.scopus-author-id24832409800
person.identifier.scopus-author-id20734149900
person.identifier.scopus-author-id6602533871
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication4150127d-4022-4ccd-962b-e1cfd903e059
relation.isAuthorOfPublicationa72f0f40-c224-49ad-ba21-ebb5f9aab09c
relation.isAuthorOfPublication02ecb390-88b9-4e2f-8690-eba66c3b5311
relation.isAuthorOfPublication.latestForDiscovery4150127d-4022-4ccd-962b-e1cfd903e059

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