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Ecophysiological constraints of two invasive plant species under a saline gradient: Halophytes versus glycophytes

2015Journal article Restricted access
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dc.contributor.authorDuarte, Bernardo
dc.contributor.authorSantos, D.
dc.contributor.authorMarques, J. C.
dc.contributor.authorCaçador, Isabel
dc.date.accessioned2020-01-19T14:56:32Z
dc.date.available2020-01-19T14:56:32Z
dc.date.issued2015
dc.description.abstractSalt marsh environments are harsh environments where salinity comprises one of the most important species distribution shaping factor, presenting sediment salinities from 0 to 855 mM (0–50 ppt). Invasive species have often a high colonizing potential, due to its high plasticity and adaptation ability. Spartina patens is an invasive species already spread along several Mediterranean countries, like France and Spain. Cyperus longus is typically a freshwater species that has been spreading across the Mediterranean. In order to evaluate the ecophysiological fitness of these species, mesocosmos trials were performed subjecting both species to increasing realistic salinity levels and their photochemical and biochemical feedback was evaluated. Both species presented very different behaviours. S. patens appears to be insensitive to salt stress, mostly due to elevated proline concentrations in its leaves allowing it to maintain its osmotic balance, and thus preventing the damaging of its photochemical mechanisms. C. longus, on the other hand, was highly affected by elevated salt levels mostly due to the lack of osmotic balance driven by an incapacity to counteract the elevated ionic strength of the external medium by osmocompatible solutes. S. patens is physiologically highly adapted to saline environments and thus is capable to colonize all the marsh saline environments, while C. longus appears to be an opportunistic invader colonizing the marsh during periods of lower salinities typical from rainy seasons.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.ecss.2015.04.007pt_PT
dc.identifier.issn0272-7714
dc.identifier.urihttp://hdl.handle.net/10451/41057
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.subjectchlorophyll fluorescencept_PT
dc.subjectpigment profilespt_PT
dc.subjectsalt stresspt_PT
dc.subjectosmosolutespt_PT
dc.subjectinvasive speciespt_PT
dc.titleEcophysiological constraints of two invasive plant species under a saline gradient: Halophytes versus glycophytespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage165pt_PT
oaire.citation.startPage154pt_PT
oaire.citation.titleEstuarine, Coastal and Shelf Sciencept_PT
oaire.citation.volume167pt_PT
person.familyNameDuarte
person.familyNameMARQUES
person.familyNameCaçador
person.givenNameBernardo
person.givenNameJOÃO CARLOS
person.givenNameIsabel
person.identifier89449
person.identifier134821
person.identifier.ciencia-id731E-093F-D4C8
person.identifier.ciencia-id9F11-7A1E-BEEC
person.identifier.ciencia-id631C-9FFE-CA81
person.identifier.orcid0000-0003-1914-7435
person.identifier.orcid0000-0001-8865-8189
person.identifier.orcid0000-0002-4475-6091
person.identifier.ridH-2001-2011
person.identifier.ridL-9478-2014
person.identifier.ridC-2618-2012
person.identifier.scopus-author-id20734149900
person.identifier.scopus-author-id7203032961
person.identifier.scopus-author-id6602533871
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationa72f0f40-c224-49ad-ba21-ebb5f9aab09c
relation.isAuthorOfPublication97130a55-0383-4d1b-8d73-4a5ca889e529
relation.isAuthorOfPublication02ecb390-88b9-4e2f-8690-eba66c3b5311
relation.isAuthorOfPublication.latestForDiscovery02ecb390-88b9-4e2f-8690-eba66c3b5311

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