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Physiological responses of Plantago algarbiensis and P. almogravensis shoots and plantlets to low pH and aluminum stress

2013Journal article Restricted access
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dc.contributor.authorMartins, Neusa
dc.contributor.authorOsório, Maria Leonor
dc.contributor.authorGonçalves, Sandra
dc.contributor.authorOsório, Júlio
dc.contributor.authorPalma, Tânia
dc.contributor.authorRomano, Anabela
dc.date.accessioned2013-03-18T09:20:29Z
dc.date.available2013-03-18T09:20:29Z
dc.date.issued2013
dc.description.abstractWe investigated the impact of low pH and aluminum (Al) stress on the growth, nutrients concentration, chlorophyll a fluorescence, photosynthetic pigment contents, proline and carbohydrate accumulation in shoots and plantlets (leaves and roots) of Plantago almogravensis and P. algarbiensis. Both species accumulated considerable and similar amounts of Al in their tissues, mainly in the roots. The presence of Al caused a significant reduction on root elongation in P. algarbiensis. Low pH and Al induced significant changes on nutrient accumulation, but no significant alterations on the maximum efficiency of PSII (Fv/Fm), quantum yield of PSII photochemistry (FiPSII), quantum yield of regulated energy dissipation (FiNPQ) and quantum yield of non-regulated energy dissipation (FiNO) were detected in both species in response to these stresses. However, Al increased significantly the nonphotochemical quenching and the hlorophyll b content and decreased the PSII excitation pressure (1 - qp) in P. almogravensis leaves. Both stress treatments induced carbohydrate accumulation in the shoots and roots of this species, but not in leaves. In P. algarbiensis, low pH and Al decreased the photosynthetic pigment contents in the shoots, whereas Al stimulated the carbohydrate accumulation in the leaves. Although our data showed that both species are tolerant to Al3+ and H+, P. almogravensis appeared to be more adapted to maintain cellular physiology and growth under those conditions.por
dc.description.sponsorshipN. Martins, M.L. Osório and S. Gonçalves acknowledge a grant from the Portuguese Science and Technology Foundation (FCT, SFRH/BD/48379/2008, SFRH/BPD/35410/2007 and SFRH/BPD/31534/2006, respectively). This work was supported by the FCT project PTDC/AGR-AAM/102664/2008.por
dc.identifier.citationMartins N., Osório, M. L., Gonçalves S., Osório J., Palma T., Romano A. 2013. Physiological responses of Plantago algarbiensis and P. almogravensis shoots and plantlets to low pH and aluminum stress, Acta Physiologiae Plantarum 35: 615–625por
dc.identifier.issn0137-5881
dc.identifier.otherAUT: JOS01477; ARO01015;
dc.identifier.urihttp://hdl.handle.net/10400.1/2592
dc.language.isoengpor
dc.peerreviewedyespor
dc.relation.publisherversionhttp://link.springer.com/article/10.1007%2Fs11738-012-1102-zpor
dc.subjectAluminum accumulationpor
dc.subjectCarbohydratespor
dc.subjectChlorophyll a fluorescencepor
dc.subjectNutrientspor
dc.subjectPhotosynthetic pigmentspor
dc.subjectProlinepor
dc.titlePhysiological responses of Plantago algarbiensis and P. almogravensis shoots and plantlets to low pH and aluminum stresspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage625por
oaire.citation.issue2por
oaire.citation.startPage615por
oaire.citation.titleActa Physiologiae Plantarumpor
oaire.citation.volume35por
person.familyNameOsório
person.familyNameGonçalves
person.familyNameOsório
person.familyNameRomano
person.givenNameMaria Leonor
person.givenNameSandra
person.givenNameJúlio
person.givenNameAnabela
person.identifier.ciencia-id1D1A-4459-86D8
person.identifier.ciencia-id9F19-E3AE-2C59
person.identifier.ciencia-id8A18-7E9A-3B0E
person.identifier.orcid0000-0003-4333-2905
person.identifier.orcid0000-0002-7713-6497
person.identifier.orcid0000-0002-3038-4434
person.identifier.orcid0000-0002-4054-4091
person.identifier.orcid0000-0002-7204-7428
person.identifier.ridM-6988-2017
person.identifier.scopus-author-id7006394339
person.identifier.scopus-author-id8583003200
person.identifier.scopus-author-id9938818600
person.identifier.scopus-author-id56249997600
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
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