Regulation of sucrose metabolism in higher plants: Localization and regulation of activity of key enzymes

DC ElementWertSprache
dc.contributor.authorWinter, H
dc.contributor.authorHuber, SC
dc.date.accessioned2021-12-23T16:17:59Z-
dc.date.available2021-12-23T16:17:59Z-
dc.date.issued2000
dc.identifier.issn10409238
dc.identifier.urihttps://osnascholar.ub.uni-osnabrueck.de/handle/unios/12486-
dc.description.abstractSucrose (Suc) plays a central role in plant growth and development. It is a major end product of photosynthesis and functions as a primary transport sugar and in some cases as a direct or indirect regulator of gene expression. Research during the last 2 decades has identified the pathways involved and which enzymes contribute to the control of flux. Availability of metabolites for Suc synthesis and `demand' for products of sucrose degradation are important factors, but this review specifically focuses on the biosynthetic enzyme sucrose-phosphate synthase (SPS), and the degradative enzymes, sucrose synthase (SuSy), and the invertases. Recent progress has included the cloning of genes encoding these enzymes and the elucidation of posttranslational regulatory mechanisms. Protein phosphorylation is emerging as an important mechanism controlling SPS activity in response to various environmental and endogenous signals. In terms of Suc degradation, invertase-catalyzed hydrolysis generally has been associated with cell expansion, whereas SuSy-catalyzed metabolism has been linked with biosynthetic processes (e.g., cell wall or storage products). Recent results indicate that SuSy may be localized in multiple cellular compartments: (1) as a soluble enzyme in the cytosol (as traditionally assumed); (2) associated with the plasma membrane; and (3) associated with the actin cytoskeleton. Phosphorylation of SuSy has been shown to occur and may be one of the factors controlling localization of the enzyme. The purpose of this review is to summarize some of the recent developments relating to regulation of activity and localization of key enzymes involved in sucrose metabolism in plants.
dc.language.isoen
dc.publisherTAYLOR & FRANCIS LTD
dc.relation.ispartofCRITICAL REVIEWS IN BIOCHEMISTRY AND MOLECULAR BIOLOGY
dc.subject14-3-3 proteins
dc.subjectactin cytoskeleton
dc.subjectALPHA-AMYLASE GENE
dc.subjectAPOPLASMIC INVERTASE INHIBITOR
dc.subjectARABIDOPSIS-THALIANA
dc.subjectBiochemistry & Molecular Biology
dc.subjectBUNDLE-SHEATH-CELLS
dc.subjectCDPK
dc.subjectCELL-SPECIFIC EXPRESSION
dc.subjectinvertase
dc.subjectPHOSPHATE-SYNTHASE ACTIVITY
dc.subjectPROTEIN-KINASE-C
dc.subjectregulatory protein phosphorylation
dc.subjectSNF1 protein kinase
dc.subjectSTORED POTATO-TUBERS
dc.subjectsucrose synthase
dc.subjectsucrose-phosphate synthase
dc.subjectsucrose-sensing
dc.subjectTRANSGENIC TOBACCO PLANTS
dc.subjecttranslocation
dc.subjectYEAST-DERIVED INVERTASE
dc.titleRegulation of sucrose metabolism in higher plants: Localization and regulation of activity of key enzymes
dc.typereview
dc.identifier.doi10.1080/10409230008984165
dc.identifier.isiISI:000089245500001
dc.description.volume35
dc.description.issue4
dc.description.startpage253
dc.description.endpage289
dc.contributor.orcid0000-0002-0960-9678
dc.identifier.eissn15497798
dc.publisher.place2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND
dcterms.isPartOf.abbreviationCrit. Rev. Biochem. Mol. Biol.
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