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The memory of iron stress in strawberry plants

2016-07Journal article Restricted access
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dc.contributor.authorGama, Florinda
dc.contributor.authorSaavedra, Teresa
dc.contributor.authorDa Silva, José Paulo
dc.contributor.authorMiguel, Maria
dc.contributor.authorde Varennes, Amarilis
dc.contributor.authorCorreia, José Pedro
dc.contributor.authorPestana, Maribela
dc.date.accessioned2017-04-07T15:56:26Z
dc.date.available2017-04-07T15:56:26Z
dc.date.issued2016-07
dc.description.abstractTo provide information towards optimization of strategies to treat Fe deficiency, experiments were conducted to study the responses of Fe-deficient plants to the resupply of Fe. Strawberry (Fragaria x ananassa Duch.) was used as model plant. Bare-root transplants of strawberry (cv. 'Diamante') were grown for 42 days in Hoagland's nutrient solutions without Fe (Fe0) and containing 10 mu M of Fe as Fe-EDDHA (control, Fe10). For plants under Fe0 the total chlorophyll concentration of young leaves decreased progressively on time, showing the typical symptoms of iron chlorosis. After 35 days the Fe concentration was 6% of that observed for plants growing under Fe10. Half of plants growing under Fe0 were then Fe-resupplied by adding 10 mu M of Fe to the Fe0 nutrient solution (FeR). Full Chlorophyll recovery of young leaves took place within 12 days. Root ferric chelate-reductase activity (FCR) and succinic and citric acid concentrations increased in FeR plants. Fe partition revealed that FeR plants expressively accumulated this nutrient in the crown and flowers. This observation can be due to a passive deactivation mechanism of the FCR activity, associated with continuous synthesis of succinic and citric acids at root level, and consequent greater uptake of Fe. (C) 2016 Elsevier Masson SAS. All rights reserved.
dc.identifier.doi10.1016/j.plaphy.2016.03.019
dc.identifier.issn0981-9428
dc.identifier.urihttp://hdl.handle.net/10400.1/9416
dc.language.isoeng
dc.peerreviewedyes
dc.relationTransport of iron in plants: novel approaches to an old problem. Improved iron mobility and development of a new fertilizer based on grass-clipping extracts.
dc.relationIRON TRAFFICKING AND SIGNALLING IN STRAWBERRY PLANTS
dc.relation.isbasedonWOS:000378360500005
dc.titleThe memory of iron stress in strawberry plants
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleTransport of iron in plants: novel approaches to an old problem. Improved iron mobility and development of a new fertilizer based on grass-clipping extracts.
oaire.awardTitleIRON TRAFFICKING AND SIGNALLING IN STRAWBERRY PLANTS
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FAGR-PRO%2F3861%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F89521%2F2012/PT
oaire.citation.endPage44
oaire.citation.startPage36
oaire.citation.titlePlant Physiology and Biochemistry
oaire.citation.volume104
oaire.fundingStream3599-PPCDT
person.familyNameGama
person.familyNameSaavedra
person.familyNameSilva
person.familyNameMiguel
person.familyNamePestana
person.givenNameFlorinda
person.givenNameTeresa
person.givenNameJosé Paulo da
person.givenNameMaria da Graça
person.givenNameMaribela
person.identifier74793
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person.identifier.ridA-4606-2008
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person.identifier.scopus-author-id35770492700
person.identifier.scopus-author-id36467141800
person.identifier.scopus-author-id7201733236
person.identifier.scopus-author-id35562054500
person.identifier.scopus-author-id7005146039
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccess
rcaap.typearticle
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