Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/20690
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dc.contributor.authorRyan, Peter Ren
dc.contributor.authorJames, Richard Aen
dc.contributor.authorFettell, Neilen
dc.contributor.authorRichardson, Alan Een
dc.contributor.authorWeligama, Chandrakumaraen
dc.contributor.authorDalhaize, Emmanuelen
dc.contributor.authorRattey, Allanen
dc.contributor.authorLewis, David Cen
dc.contributor.authorBovill, William Den
dc.contributor.authorMcDonald, Glennen
dc.contributor.authorRathjen, Tina Men
dc.contributor.authorWang, Enlien
dc.date.accessioned2017-05-07T16:00:00Z-
dc.date.issued2014-
dc.identifier.citationPhysiologia Plantarum, 151(3), p. 230-242en
dc.identifier.issn1399-3054en
dc.identifier.issn0031-9317en
dc.identifier.urihttps://hdl.handle.net/1959.11/20690-
dc.description.abstractPhosphorus (P) deficiency in some plant species triggers the release of organic anions such as citrate and malate from roots. These anions are widely suggested to enhance the availability of phosphate for plant uptake by mobilizing sparingly-soluble forms in the soil. Carazinho is an old wheat ('Triticum aestivum') cultivar from Brazil, which secretes citrate constitutively from its root apices, and here we show that it also produces relatively more biomass on soils with low P availability than two recent Australian cultivars that lack citrate efflux. To test whether citrate efflux explains this phenotype, we generated two sets of near-isogenic lines that differ in citrate efflux and compared their biomass production in different soil types and with different P treatments in glasshouse experiments and field trials. Citrate efflux improved relative biomass production in two of six glasshouse trials but only at the lowest P treatments where growth was most severely limited by P availability. Furthermore, citrate efflux provided no consistent advantage for biomass production or yield in multiple field trials. Theoretical modeling indicates that the effectiveness of citrate efflux in mobilizing soil P is greater as the volume of soil into which it diffuses increases. As efflux from these wheat plants is restricted to the root apices, the potential for citrate to mobilize sufficient P to increase shoot biomass may be limited. We conclude that Carazinho has other attributes that contribute to its comparatively good performance in low-P soils.en
dc.languageenen
dc.publisherWiley-Blackwell Publishing, Incen
dc.relation.ispartofPhysiologia Plantarumen
dc.titleCan citrate efflux from roots improve phosphorus uptake by plants? Testing the hypothesis with near-isogenic lines of wheaten
dc.typeJournal Articleen
dc.identifier.doi10.1111/ppl.12150en
dc.subject.keywordsCrop and Pasture Nutritionen
local.contributor.firstnamePeter Ren
local.contributor.firstnameRichard Aen
local.contributor.firstnameNeilen
local.contributor.firstnameAlan Een
local.contributor.firstnameChandrakumaraen
local.contributor.firstnameEmmanuelen
local.contributor.firstnameAllanen
local.contributor.firstnameDavid Cen
local.contributor.firstnameWilliam Den
local.contributor.firstnameGlennen
local.contributor.firstnameTina Men
local.contributor.firstnameEnlien
local.subject.for2008070306 Crop and Pasture Nutritionen
local.subject.seo2008820507 Wheaten
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailnfettell@une.edu.auen
local.profile.emailalan.richardson@csiro.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20170406-095419en
local.publisher.placeUnited States of Americaen
local.format.startpage230en
local.format.endpage242en
local.peerreviewedYesen
local.identifier.volume151en
local.identifier.issue3en
local.contributor.lastnameRyanen
local.contributor.lastnameJamesen
local.contributor.lastnameFettellen
local.contributor.lastnameRichardsonen
local.contributor.lastnameWeligamaen
local.contributor.lastnameDalhaizeen
local.contributor.lastnameRatteyen
local.contributor.lastnameLewisen
local.contributor.lastnameBovillen
local.contributor.lastnameMcDonalden
local.contributor.lastnameRathjenen
local.contributor.lastnameWangen
dc.identifier.staffune-id:nfettellen
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local.identifier.unepublicationidune:20883en
dc.identifier.academiclevelAcademicen
local.title.maintitleCan citrate efflux from roots improve phosphorus uptake by plants? Testing the hypothesis with near-isogenic lines of wheaten
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorRyan, Peter Ren
local.search.authorJames, Richard Aen
local.search.authorFettell, Neilen
local.search.authorRichardson, Alan Een
local.search.authorWeligama, Chandrakumaraen
local.search.authorDalhaize, Emmanuelen
local.search.authorRattey, Allanen
local.search.authorLewis, David Cen
local.search.authorBovill, William Den
local.search.authorMcDonald, Glennen
local.search.authorRathjen, Tina Men
local.search.authorWang, Enlien
local.uneassociationUnknownen
local.identifier.wosid000337598900004en
local.year.published2014en
local.subject.for2020300407 Crop and pasture nutritionen
local.subject.seo2020260312 Wheaten
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