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AtSUC2 has a role for sucrose retrieval along the phloem pathway: Evidence from carbon-11 tracer studies

Gould, N; Thorpe, Michael; Pritchard, J; Christeller, J T; Williams, L E; Roeb, G; Schurr, Ulrich; Minchin, P E H

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The location of the phloem within a plant, and its vulnerability to disruption, make it a difficult tissue to study and therefore non-invasive studies of phloem functionality are important. Here we compare, phloem transport, measured non-invasively, in wild type Arabidopsis thaliana, and transposon-insertion mutants for AtSUC1 or AtSUC2, giving in vivo information on the importance of these sucrose transporters for phloem transport. The suc2 mutant showed an increase in both phloem leakage and...[Show more]

dc.contributor.authorGould, N
dc.contributor.authorThorpe, Michael
dc.contributor.authorPritchard, J
dc.contributor.authorChristeller, J T
dc.contributor.authorWilliams, L E
dc.contributor.authorRoeb, G
dc.contributor.authorSchurr, Ulrich
dc.contributor.authorMinchin, P E H
dc.date.accessioned2015-12-13T22:19:41Z
dc.identifier.issn0168-9452
dc.identifier.urihttp://hdl.handle.net/1885/71943
dc.description.abstractThe location of the phloem within a plant, and its vulnerability to disruption, make it a difficult tissue to study and therefore non-invasive studies of phloem functionality are important. Here we compare, phloem transport, measured non-invasively, in wild type Arabidopsis thaliana, and transposon-insertion mutants for AtSUC1 or AtSUC2, giving in vivo information on the importance of these sucrose transporters for phloem transport. The suc2 mutant showed an increase in both phloem leakage and transport time, consistent with reduced sucrose uptake into both transport and collection phloem. The results are consistent with the AtSUC2 transporter being important for retrieval of leaked sucrose in the transport phloem of Arabidopsis. There was no difference in phloem transport properties between the wild type and the suc1 mutants, implying that the AtSUC1 transporter does not play a significant role within the transport phloem of Arabidopsis under the conditions of our study.
dc.publisherElsevier
dc.sourcePlant Science
dc.subjectKeywords: carbon; carrier protein; diagnostic agent; sucrose; sucrose transport protein, plant; vegetable protein; Arabidopsis; article; gene expression regulation; gene inactivation; genetics; metabolism; phloem; transport at the cellular level; Arabidopsis; Biolo 11C tracer; Phloem leakage; Phloem transit times; Sucrose transporter; Transposon mutagenesis
dc.titleAtSUC2 has a role for sucrose retrieval along the phloem pathway: Evidence from carbon-11 tracer studies
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume188-189
dc.date.issued2012
local.identifier.absfor060702 - Plant Cell and Molecular Biology
local.identifier.ariespublicationf5625xPUB2965
local.type.statusPublished Version
local.contributor.affiliationGould, N, New Zealand Institute for Plant & Food Research Ltd
local.contributor.affiliationThorpe, Michael, College of Medicine, Biology and Environment, ANU
local.contributor.affiliationPritchard, J, Birmingham University
local.contributor.affiliationChristeller, J T, Plant and Food Research Institute
local.contributor.affiliationWilliams, L E, University of Southampton
local.contributor.affiliationRoeb, G, Forschungszentrum Jülich
local.contributor.affiliationSchurr, Ulrich, Research Center Julich
local.contributor.affiliationMinchin, P E H, Forschungszentrum Jülich
local.description.embargo2037-12-31
local.bibliographicCitation.startpage97
local.bibliographicCitation.lastpage101
local.identifier.doi10.1016/j.plantsci.2011.12.018
dc.date.updated2016-02-24T09:04:22Z
local.identifier.scopusID2-s2.0-84860170162
CollectionsANU Research Publications

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