Contributions of sucrose synthase and invertase to the metabolism of sucrose in developing leaves: estimation by alternate substrate utilization
The relative contributions of invertase and sucrose synthase to initial cleavage of phloem-imported sucrose was calculated for sink leaves of soybean (Glycine max L. Merr cv Wye) and sugar beet (Beta vulgaris L. monohybrid). Invertase from yeast hydrolyzed sucrose 4200 times faster than 1′-deoxy-1′-...
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| Veröffentlicht in: | Plant Physiol.; (United States) 1987-10, Vol.85 (2), p.407-412 |
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| creator | Schmalstig, J.G Hitz, W.D |
| description | The relative contributions of invertase and sucrose synthase to initial cleavage of phloem-imported sucrose was calculated for sink leaves of soybean (Glycine max L. Merr cv Wye) and sugar beet (Beta vulgaris L. monohybrid). Invertase from yeast hydrolyzed sucrose 4200 times faster than 1′-deoxy-1′-fluorosucrose (FS) while sucrose cleavage by sucrose synthase from developing soybean leaves proceeded only 3.6 times faster than cleavage of FS. [14C]Sucrose and [14C]FS, used as tracers of sucrose, were transported at identical rates to developing leaves through the phloem. The rate of label incorporation into insoluble products varied with leaf age from 3.4 to 8.0 times faster when [14C]sucrose was supplied than when [14C]FS was supplied. The discrimination in metabolism was related to enzymatic discriminations against FS to calculate the relative contributions of invertase and sucrose synthase to sucrose cleavage. In the youngest soybean leaves measured, 4% of final laminar length (FLL), all cleavage was by sucrose synthase. Invertase contribution to sucrose metabolism was 47% by 7.6% FLL, increased to 54% by 11% FLL, then declined to 42% for the remainder of the import phase. In sugar beet sink leaves at 30% FLL invertase contribution to sucrose metabolism was 58%. |
| doi_str_mv | 10.1104/pp.85.2.407 |
| format | Article |
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Merr cv Wye) and sugar beet (Beta vulgaris L. monohybrid). Invertase from yeast hydrolyzed sucrose 4200 times faster than 1′-deoxy-1′-fluorosucrose (FS) while sucrose cleavage by sucrose synthase from developing soybean leaves proceeded only 3.6 times faster than cleavage of FS. [14C]Sucrose and [14C]FS, used as tracers of sucrose, were transported at identical rates to developing leaves through the phloem. The rate of label incorporation into insoluble products varied with leaf age from 3.4 to 8.0 times faster when [14C]sucrose was supplied than when [14C]FS was supplied. The discrimination in metabolism was related to enzymatic discriminations against FS to calculate the relative contributions of invertase and sucrose synthase to sucrose cleavage. In the youngest soybean leaves measured, 4% of final laminar length (FLL), all cleavage was by sucrose synthase. Invertase contribution to sucrose metabolism was 47% by 7.6% FLL, increased to 54% by 11% FLL, then declined to 42% for the remainder of the import phase. In sugar beet sink leaves at 30% FLL invertase contribution to sucrose metabolism was 58%.</description><identifier>ISSN: 0032-0889</identifier><identifier>EISSN: 1532-2548</identifier><identifier>DOI: 10.1104/pp.85.2.407</identifier><identifier>PMID: 16665711</identifier><identifier>CODEN: PPHYA5</identifier><language>eng</language><publisher>Rockville, MD: American Society of Plant Physiologists</publisher><subject>550501 - Metabolism- Tracer Techniques ; ACTIVIDAD ENZIMATICA ; ACTIVITE ENZYMATIQUE ; Agronomy. Soil science and plant productions ; ARGLYCINE MAX ; BACTERIA ; BASIC BIOLOGICAL SCIENCES ; BEETS ; BETA VULGARIS ; Biological and medical sciences ; CARBOHYDRATE METABOLISM ; CARBOHYDRATES ; CARBON 14 COMPOUNDS ; CLEAVAGE ; CRYSTAL STRUCTURE ; DISACCHARIDES ; Economic plant physiology ; ENZYME ACTIVITY ; ENZYMES ; ENZYMIC ACTIVITY ; Ethanol ; FEUILLE ; FLOEMA ; FOOD ; FRUCTOFURANOSIDASA ; FRUCTOFURANOSIDASE ; Fundamental and applied biological sciences. Psychology ; GLYCINE HISPIDA ; GLYCINE MAX ; HOJAS ; Hydrolysis ; ISOMERASES ; ISOTOPE APPLICATIONS ; LABELLED COMPOUNDS ; LEAVES ; LEGUMINOSAE ; LIGASA ; LIGASE ; LIGASES ; MEASUREMENT ; MEDICION ; METABOLISM ; Metabolism and Enzymology ; METABOLISME DES GLUCIDES ; METABOLISMO DE CARBOHIDRATOS ; MICROORGANISMS ; MICROSTRUCTURE ; Net assimilation, photosynthesis, carbon metabolism. Photorespiration, respiration, fermentation (anoxia, hypoxia) ; Nutrition. Photosynthesis. Respiration. Metabolism ; OLIGOSACCHARIDES ; ORGANIC COMPOUNDS ; PHLOEM ; PHLOEME ; Photosynthesis, respiration. Anabolism, catabolism ; Plant physiology and development ; PLANTS ; Ratios ; RHIZOBIUM ; SACCHARIDES ; SACCHAROSE ; Soybeans ; SUBSTRATES ; SUCROSA ; SUCROSE ; SUGAR BEETS ; Sugars ; TRACER TECHNIQUES ; VEGETABLES</subject><ispartof>Plant Physiol.; (United States), 1987-10, Vol.85 (2), p.407-412</ispartof><rights>Copyright 1987 American Society of Plant Physiologists</rights><rights>1988 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/4270924$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/4270924$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>230,314,780,784,803,885,27922,27923,58015,58248</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=7705932$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16665711$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/5401233$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Schmalstig, J.G</creatorcontrib><creatorcontrib>Hitz, W.D</creatorcontrib><creatorcontrib>E.I. du Pont de Nemours and Company, Wilmington, DE</creatorcontrib><title>Contributions of sucrose synthase and invertase to the metabolism of sucrose in developing leaves: estimation by alternate substrate utilization</title><title>Plant Physiol.; (United States)</title><addtitle>Plant Physiol</addtitle><description>The relative contributions of invertase and sucrose synthase to initial cleavage of phloem-imported sucrose was calculated for sink leaves of soybean (Glycine max L. Merr cv Wye) and sugar beet (Beta vulgaris L. monohybrid). Invertase from yeast hydrolyzed sucrose 4200 times faster than 1′-deoxy-1′-fluorosucrose (FS) while sucrose cleavage by sucrose synthase from developing soybean leaves proceeded only 3.6 times faster than cleavage of FS. [14C]Sucrose and [14C]FS, used as tracers of sucrose, were transported at identical rates to developing leaves through the phloem. The rate of label incorporation into insoluble products varied with leaf age from 3.4 to 8.0 times faster when [14C]sucrose was supplied than when [14C]FS was supplied. The discrimination in metabolism was related to enzymatic discriminations against FS to calculate the relative contributions of invertase and sucrose synthase to sucrose cleavage. In the youngest soybean leaves measured, 4% of final laminar length (FLL), all cleavage was by sucrose synthase. Invertase contribution to sucrose metabolism was 47% by 7.6% FLL, increased to 54% by 11% FLL, then declined to 42% for the remainder of the import phase. In sugar beet sink leaves at 30% FLL invertase contribution to sucrose metabolism was 58%.</description><subject>550501 - Metabolism- Tracer Techniques</subject><subject>ACTIVIDAD ENZIMATICA</subject><subject>ACTIVITE ENZYMATIQUE</subject><subject>Agronomy. Soil science and plant productions</subject><subject>ARGLYCINE MAX</subject><subject>BACTERIA</subject><subject>BASIC BIOLOGICAL SCIENCES</subject><subject>BEETS</subject><subject>BETA VULGARIS</subject><subject>Biological and medical sciences</subject><subject>CARBOHYDRATE METABOLISM</subject><subject>CARBOHYDRATES</subject><subject>CARBON 14 COMPOUNDS</subject><subject>CLEAVAGE</subject><subject>CRYSTAL STRUCTURE</subject><subject>DISACCHARIDES</subject><subject>Economic plant physiology</subject><subject>ENZYME ACTIVITY</subject><subject>ENZYMES</subject><subject>ENZYMIC ACTIVITY</subject><subject>Ethanol</subject><subject>FEUILLE</subject><subject>FLOEMA</subject><subject>FOOD</subject><subject>FRUCTOFURANOSIDASA</subject><subject>FRUCTOFURANOSIDASE</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>GLYCINE HISPIDA</subject><subject>GLYCINE MAX</subject><subject>HOJAS</subject><subject>Hydrolysis</subject><subject>ISOMERASES</subject><subject>ISOTOPE APPLICATIONS</subject><subject>LABELLED COMPOUNDS</subject><subject>LEAVES</subject><subject>LEGUMINOSAE</subject><subject>LIGASA</subject><subject>LIGASE</subject><subject>LIGASES</subject><subject>MEASUREMENT</subject><subject>MEDICION</subject><subject>METABOLISM</subject><subject>Metabolism and Enzymology</subject><subject>METABOLISME DES GLUCIDES</subject><subject>METABOLISMO DE CARBOHIDRATOS</subject><subject>MICROORGANISMS</subject><subject>MICROSTRUCTURE</subject><subject>Net assimilation, photosynthesis, carbon metabolism. Photorespiration, respiration, fermentation (anoxia, hypoxia)</subject><subject>Nutrition. Photosynthesis. Respiration. Metabolism</subject><subject>OLIGOSACCHARIDES</subject><subject>ORGANIC COMPOUNDS</subject><subject>PHLOEM</subject><subject>PHLOEME</subject><subject>Photosynthesis, respiration. Anabolism, catabolism</subject><subject>Plant physiology and development</subject><subject>PLANTS</subject><subject>Ratios</subject><subject>RHIZOBIUM</subject><subject>SACCHARIDES</subject><subject>SACCHAROSE</subject><subject>Soybeans</subject><subject>SUBSTRATES</subject><subject>SUCROSA</subject><subject>SUCROSE</subject><subject>SUGAR BEETS</subject><subject>Sugars</subject><subject>TRACER TECHNIQUES</subject><subject>VEGETABLES</subject><issn>0032-0889</issn><issn>1532-2548</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1987</creationdate><recordtype>article</recordtype><recordid>eNpVkkuP0zAUhSMEYjoDK7YIWWgkFqjFz8RmgYQqXtJILGDWluPctB6ldrCdSuVX8JNxaNUZVrnW_XzO9bmpqhcErwjB_N04rqRY0RXHzaNqQQSjSyq4fFwtMC41llJdVJcp3WGMCSP8aXVB6roWDSGL6s86-BxdO2UXfEKhR2myMSRA6eDz1pTC-A45v4eY51MOKG8B7SCbNgwu7R7ecR51sIchjM5v0ABmD-k9gpTdzswGqD0gM2SI3uTiMLUpx7kq7oP7_Q95Vj3pzZDg-el7Vd1-_vRz_XV58_3Lt_XHm6VlNc9LUsvOgFCUYsnqTjGpJMdWccEtV31Du7onDRaEtnUvaU2obaAhXUsNcKMou6o-HHXHqd1BZ6HEYAY9xjJqPOhgnP6_491Wb8JeEyw4rVUReH0UCOV5OlmXwW5t8B5s1oJjQhkr0JuTSwy_phKE3rlkYRiMhzAl3TDGlSBCFPLtkZyTTBH68ygE63nPehy1FJrqsudCv3o4_T17WmwBrk-ASdYMfTTeunTmmhKNYnMKL4_YXcohntucNlhRft_uTdBmE4vC7Q8piZKq_FbsL67WxeA</recordid><startdate>19871001</startdate><enddate>19871001</enddate><creator>Schmalstig, J.G</creator><creator>Hitz, W.D</creator><general>American Society of Plant Physiologists</general><scope>FBQ</scope><scope>IQODW</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>OTOTI</scope><scope>5PM</scope></search><sort><creationdate>19871001</creationdate><title>Contributions of sucrose synthase and invertase to the metabolism of sucrose in developing leaves: estimation by alternate substrate utilization</title><author>Schmalstig, J.G ; Hitz, W.D</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c364t-168dae59220836d9389840c9454c49f72d6f170512b6f82612c7e71db2ae4a923</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1987</creationdate><topic>550501 - Metabolism- Tracer Techniques</topic><topic>ACTIVIDAD ENZIMATICA</topic><topic>ACTIVITE ENZYMATIQUE</topic><topic>Agronomy. Soil science and plant productions</topic><topic>ARGLYCINE MAX</topic><topic>BACTERIA</topic><topic>BASIC BIOLOGICAL SCIENCES</topic><topic>BEETS</topic><topic>BETA VULGARIS</topic><topic>Biological and medical sciences</topic><topic>CARBOHYDRATE METABOLISM</topic><topic>CARBOHYDRATES</topic><topic>CARBON 14 COMPOUNDS</topic><topic>CLEAVAGE</topic><topic>CRYSTAL STRUCTURE</topic><topic>DISACCHARIDES</topic><topic>Economic plant physiology</topic><topic>ENZYME ACTIVITY</topic><topic>ENZYMES</topic><topic>ENZYMIC ACTIVITY</topic><topic>Ethanol</topic><topic>FEUILLE</topic><topic>FLOEMA</topic><topic>FOOD</topic><topic>FRUCTOFURANOSIDASA</topic><topic>FRUCTOFURANOSIDASE</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>GLYCINE HISPIDA</topic><topic>GLYCINE MAX</topic><topic>HOJAS</topic><topic>Hydrolysis</topic><topic>ISOMERASES</topic><topic>ISOTOPE APPLICATIONS</topic><topic>LABELLED COMPOUNDS</topic><topic>LEAVES</topic><topic>LEGUMINOSAE</topic><topic>LIGASA</topic><topic>LIGASE</topic><topic>LIGASES</topic><topic>MEASUREMENT</topic><topic>MEDICION</topic><topic>METABOLISM</topic><topic>Metabolism and Enzymology</topic><topic>METABOLISME DES GLUCIDES</topic><topic>METABOLISMO DE CARBOHIDRATOS</topic><topic>MICROORGANISMS</topic><topic>MICROSTRUCTURE</topic><topic>Net assimilation, photosynthesis, carbon metabolism. Photorespiration, respiration, fermentation (anoxia, hypoxia)</topic><topic>Nutrition. Photosynthesis. Respiration. Metabolism</topic><topic>OLIGOSACCHARIDES</topic><topic>ORGANIC COMPOUNDS</topic><topic>PHLOEM</topic><topic>PHLOEME</topic><topic>Photosynthesis, respiration. Anabolism, catabolism</topic><topic>Plant physiology and development</topic><topic>PLANTS</topic><topic>Ratios</topic><topic>RHIZOBIUM</topic><topic>SACCHARIDES</topic><topic>SACCHAROSE</topic><topic>Soybeans</topic><topic>SUBSTRATES</topic><topic>SUCROSA</topic><topic>SUCROSE</topic><topic>SUGAR BEETS</topic><topic>Sugars</topic><topic>TRACER TECHNIQUES</topic><topic>VEGETABLES</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Schmalstig, J.G</creatorcontrib><creatorcontrib>Hitz, W.D</creatorcontrib><creatorcontrib>E.I. du Pont de Nemours and Company, Wilmington, DE</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>OSTI.GOV</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Plant Physiol.; (United States)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Schmalstig, J.G</au><au>Hitz, W.D</au><aucorp>E.I. du Pont de Nemours and Company, Wilmington, DE</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Contributions of sucrose synthase and invertase to the metabolism of sucrose in developing leaves: estimation by alternate substrate utilization</atitle><jtitle>Plant Physiol.; (United States)</jtitle><addtitle>Plant Physiol</addtitle><date>1987-10-01</date><risdate>1987</risdate><volume>85</volume><issue>2</issue><spage>407</spage><epage>412</epage><pages>407-412</pages><issn>0032-0889</issn><eissn>1532-2548</eissn><coden>PPHYA5</coden><abstract>The relative contributions of invertase and sucrose synthase to initial cleavage of phloem-imported sucrose was calculated for sink leaves of soybean (Glycine max L. Merr cv Wye) and sugar beet (Beta vulgaris L. monohybrid). Invertase from yeast hydrolyzed sucrose 4200 times faster than 1′-deoxy-1′-fluorosucrose (FS) while sucrose cleavage by sucrose synthase from developing soybean leaves proceeded only 3.6 times faster than cleavage of FS. [14C]Sucrose and [14C]FS, used as tracers of sucrose, were transported at identical rates to developing leaves through the phloem. The rate of label incorporation into insoluble products varied with leaf age from 3.4 to 8.0 times faster when [14C]sucrose was supplied than when [14C]FS was supplied. The discrimination in metabolism was related to enzymatic discriminations against FS to calculate the relative contributions of invertase and sucrose synthase to sucrose cleavage. In the youngest soybean leaves measured, 4% of final laminar length (FLL), all cleavage was by sucrose synthase. Invertase contribution to sucrose metabolism was 47% by 7.6% FLL, increased to 54% by 11% FLL, then declined to 42% for the remainder of the import phase. In sugar beet sink leaves at 30% FLL invertase contribution to sucrose metabolism was 58%.</abstract><cop>Rockville, MD</cop><pub>American Society of Plant Physiologists</pub><pmid>16665711</pmid><doi>10.1104/pp.85.2.407</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Plant Physiol.; (United States), 1987-10, Vol.85 (2), p.407-412 |
| issn | 0032-0889 1532-2548 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_733495155 |
| source | Alma/SFX Local Collection; JSTOR; EZB Electronic Journals Library |
| subjects | 550501 - Metabolism- Tracer Techniques ACTIVIDAD ENZIMATICA ACTIVITE ENZYMATIQUE Agronomy. Soil science and plant productions ARGLYCINE MAX BACTERIA BASIC BIOLOGICAL SCIENCES BEETS BETA VULGARIS Biological and medical sciences CARBOHYDRATE METABOLISM CARBOHYDRATES CARBON 14 COMPOUNDS CLEAVAGE CRYSTAL STRUCTURE DISACCHARIDES Economic plant physiology ENZYME ACTIVITY ENZYMES ENZYMIC ACTIVITY Ethanol FEUILLE FLOEMA FOOD FRUCTOFURANOSIDASA FRUCTOFURANOSIDASE Fundamental and applied biological sciences. Psychology GLYCINE HISPIDA GLYCINE MAX HOJAS Hydrolysis ISOMERASES ISOTOPE APPLICATIONS LABELLED COMPOUNDS LEAVES LEGUMINOSAE LIGASA LIGASE LIGASES MEASUREMENT MEDICION METABOLISM Metabolism and Enzymology METABOLISME DES GLUCIDES METABOLISMO DE CARBOHIDRATOS MICROORGANISMS MICROSTRUCTURE Net assimilation, photosynthesis, carbon metabolism. Photorespiration, respiration, fermentation (anoxia, hypoxia) Nutrition. Photosynthesis. Respiration. Metabolism OLIGOSACCHARIDES ORGANIC COMPOUNDS PHLOEM PHLOEME Photosynthesis, respiration. Anabolism, catabolism Plant physiology and development PLANTS Ratios RHIZOBIUM SACCHARIDES SACCHAROSE Soybeans SUBSTRATES SUCROSA SUCROSE SUGAR BEETS Sugars TRACER TECHNIQUES VEGETABLES |
| title | Contributions of sucrose synthase and invertase to the metabolism of sucrose in developing leaves: estimation by alternate substrate utilization |
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