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Is there a relationship between ferric-chelate reductase activity in roots of poncirus trifoliata and leaf chlorophyll contents?

2015Journal article Open access
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dc.contributor.authorCorreia, Pedro José
dc.contributor.authorLopes, Dora
dc.contributor.authorDuarte, Amilcar
dc.contributor.authorGama, Florinda
dc.contributor.authorSaavedra, Teresa
dc.contributor.authorPestana, Maribela
dc.date.accessioned2020-03-24T12:10:30Z
dc.date.available2020-03-24T12:10:30Z
dc.date.issued2015
dc.description.abstractPoncirus trifoliata is a citrus rootstock very sensitive to Fe deficiency. This deficiency is very common in crops grown in calcareous soils due to the detrimental effect of bicarbonate ion. Higher plants have distinct behaviours when faced with Fe chlorosis, and several mechanisms may be activated under Fe shortage. The aim of this study was to investigate the activity of ferric-chelate reductase (FC-R), a key enzyme in Fe uptake, and to verify whether relationships with leaf chlorophyll contents could be established. Plants were grown in nutrient solutions without Fe (0 μM Fe), with 1 μM Fe, with 120 μM Fe and with 120 μM Fe plus CaCO3 (1 g L-1). Total leaf chlorophyll in young and mature leaves was determined using a calibration model based on a relationship between SPAD readings and concentration of chlorophyll (r2=0.95; P<0.01). The activity of FC-R was determined in roots apexes and several biomass parameters in shoots (number of leaves, height, dry and fresh weight) and roots (dry and fresh weight) were evaluated at the end of the experiment. The activity of FC-R increased in plants grown without iron (0 μM Fe). The results about the relations between root FC-R and leaf chlorophyll are discussed.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.issn0567-7572
dc.identifier.urihttp://hdl.handle.net/10400.1/13643
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherInternational Society for Horticultural Sciencept_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBiomasspt_PT
dc.subjectCalcareous soilspt_PT
dc.subjectCitrus rootstock tolerancept_PT
dc.subjectChlorosispt_PT
dc.subjectSPADpt_PT
dc.titleIs there a relationship between ferric-chelate reductase activity in roots of poncirus trifoliata and leaf chlorophyll contents?pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FAGR-AAM%2F100115%2F2008/PT
oaire.citation.endPage377pt_PT
oaire.citation.startPage373pt_PT
oaire.citation.titleActa Horticulturaept_PT
oaire.fundingStream3599-PPCDT
person.familyNameCorreia
person.familyNameDuarte
person.familyNameGama
person.familyNameSaavedra
person.familyNamePestana
person.givenNamePedro José
person.givenNameAmilcar
person.givenNameFlorinda
person.givenNameTeresa
person.givenNameMaribela
person.identifier74793
person.identifier.ciencia-id2E15-3704-0F55
person.identifier.ciencia-id081B-5FD8-0E51
person.identifier.ciencia-idB61D-C9B5-8AE2
person.identifier.ciencia-id3F1F-53D6-1014
person.identifier.ciencia-id791E-9EC5-55C9
person.identifier.orcid0000-0003-4927-1189
person.identifier.orcid0000-0002-2763-1916
person.identifier.orcid0000-0001-6948-0055
person.identifier.orcid0000-0002-2125-6342
person.identifier.orcid0000-0002-4319-1682
person.identifier.ridF-1472-2010
person.identifier.ridF-5741-2010
person.identifier.scopus-author-id7006210686
person.identifier.scopus-author-id7102602102
person.identifier.scopus-author-id35770492700
person.identifier.scopus-author-id36467141800
person.identifier.scopus-author-id7005146039
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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