The contribution of plastidial phosphoglucomutase to the control of starch synthesis within the potato tuber

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dc.contributor.authorFernie, A. R.en
dc.contributor.authorRoessner, Uteen
dc.contributor.authorTrethewey, Richard Nen
dc.contributor.authorWillmitzer, Lotharen
dc.date.accessioned2025-06-11T18:35:37Z
dc.date.available2025-06-11T18:35:37Z
dc.date.issued2001en
dc.description.abstractThe aim of this work was to evaluate the extent to which plastidial phosphoglucomutase (PGM) activity controls starch synthesis within potato (Solanum tuberosum L. cv. Desirée) tubers. The reduction in the activity of plastidial PGM led to both a correlative reduction in starch accumulation and an increased sucrose accumulation. The control coefficient of plastidial PGM on the accumulation of starch was estimated to approximate 0.24. The fluxes of carbohydrate metabolism were measured by investigating the metabolism of [U-14C]glucose in tuber discs from wild-type and transgenic plants. In tuber discs the control coefficient of plastidial PGM over starch synthesis was estimated as 0.36, indicating that this enzyme exerts considerable control over starch synthesis within the potato tuber.en
dc.description.sponsorshipAcknowledgements We are most grateful for the help of Andrea Leisse who performed the Northern blots, and also of Frank Huhn and Bruno Marty who took excellent care of the plants. We also thank Prof. Ekkehardt Neuhaus (Universität Kaiserslautern, Germany) and Dr. Andreas Weber (UniversitätKöln, Germany) for generous gifts of cDNA probes. A.R.F. would like to acknowledge the receipt of a fellowship from the Max-Planck-Gesellschaft.en
dc.description.statusPeer-revieweden
dc.format.extent9en
dc.identifier.issn0032-0935en
dc.identifier.otherPubMed:11506365en
dc.identifier.scopus0034923750en
dc.identifier.urihttp://www.scopus.com/inward/record.url?scp=0034923750&partnerID=8YFLogxKen
dc.identifier.urihttps://hdl.handle.net/1885/733758882
dc.language.isoenen
dc.sourcePlantaen
dc.subjectMetabolic control analysisen
dc.subjectPhosphoglucomutase (plastidial)en
dc.subjectSolanum tuberosumen
dc.subjectStarch synthesisen
dc.subjectSucrose (re)synthesisen
dc.titleThe contribution of plastidial phosphoglucomutase to the control of starch synthesis within the potato tuberen
dc.typeJournal articleen
dspace.entity.typePublicationen
local.bibliographicCitation.lastpage426en
local.bibliographicCitation.startpage418en
local.contributor.affiliationFernie, A. R.; Max Planck Institute of Molecular Plant Physiologyen
local.contributor.affiliationRoessner, Ute; University of Melbourneen
local.contributor.affiliationTrethewey, Richard N; Max-Planck-Inst. Molk. Pfl. Physiol.en
local.contributor.affiliationWillmitzer, Lothar; Max Planck Institute of Molecular Plant Physiologyen
local.identifier.citationvolume213en
local.identifier.doi10.1007/s004250100521en
local.identifier.pure0a1541c4-93b8-4ff9-ad4b-8307bb99dabeen
local.identifier.urlhttps://www.scopus.com/pages/publications/0034923750en
local.type.statusPublisheden

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