The contribution of plastidial phosphoglucomutase to the control of starch synthesis within the potato tuber
The 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 i...
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| Veröffentlicht in: | Planta 2001-07, Vol.213 (3), p.418-426 |
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| creator | Fernie, Alisdair R. Roessner, Ute Trethewey, Richard N. Willmitzer, Lothar |
| description | The 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. |
| doi_str_mv | 10.1007/s004250100521 |
| format | Article |
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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.</description><identifier>ISSN: 0032-0935</identifier><identifier>EISSN: 1432-2048</identifier><identifier>DOI: 10.1007/s004250100521</identifier><identifier>PMID: 11506365</identifier><identifier>CODEN: PLANAB</identifier><language>eng</language><publisher>Berlin: Springer-Verlag</publisher><subject>Agronomy. Soil science and plant productions ; Amino acids ; Amino Acids - analysis ; Biological and medical sciences ; Carbohydrate metabolism ; Carbon Radioisotopes ; Cytosol - metabolism ; Economic plant physiology ; Enzymes ; Fundamental and applied biological sciences. Psychology ; Glucose - analysis ; Glucose - metabolism ; Hexoses ; In Vitro Techniques ; Metabolism ; Net assimilation, photosynthesis, carbon metabolism. Photorespiration, respiration, fermentation (anoxia, hypoxia) ; Nutrition. Photosynthesis. Respiration. Metabolism ; Organic acids ; Phosphates ; Phosphoglucomutase - metabolism ; Photosynthesis, respiration. Anabolism, catabolism ; Plant physiology and development ; Plant Structures - enzymology ; Plants ; Plants, Genetically Modified ; Plastids - metabolism ; Solanum tuberosum - enzymology ; Starch - analysis ; Starch - biosynthesis ; Starches ; Sucrose - analysis ; Sucrose - metabolism ; Transgenic plants ; Tubers</subject><ispartof>Planta, 2001-07, Vol.213 (3), p.418-426</ispartof><rights>Springer-Verlag 2001</rights><rights>2001 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c406t-af7b4f8822b8522bd056bc546533ef9712568c3d8121aae26dbd5ccde7cd978c3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/23386240$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/23386240$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,27903,27904,57995,58228</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1059781$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/11506365$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Fernie, Alisdair R.</creatorcontrib><creatorcontrib>Roessner, Ute</creatorcontrib><creatorcontrib>Trethewey, Richard N.</creatorcontrib><creatorcontrib>Willmitzer, Lothar</creatorcontrib><title>The contribution of plastidial phosphoglucomutase to the control of starch synthesis within the potato tuber</title><title>Planta</title><addtitle>Planta</addtitle><description>The 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.</description><subject>Agronomy. Soil science and plant productions</subject><subject>Amino acids</subject><subject>Amino Acids - analysis</subject><subject>Biological and medical sciences</subject><subject>Carbohydrate metabolism</subject><subject>Carbon Radioisotopes</subject><subject>Cytosol - metabolism</subject><subject>Economic plant physiology</subject><subject>Enzymes</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Glucose - analysis</subject><subject>Glucose - metabolism</subject><subject>Hexoses</subject><subject>In Vitro Techniques</subject><subject>Metabolism</subject><subject>Net assimilation, photosynthesis, carbon metabolism. Photorespiration, respiration, fermentation (anoxia, hypoxia)</subject><subject>Nutrition. Photosynthesis. Respiration. Metabolism</subject><subject>Organic acids</subject><subject>Phosphates</subject><subject>Phosphoglucomutase - metabolism</subject><subject>Photosynthesis, respiration. Anabolism, catabolism</subject><subject>Plant physiology and development</subject><subject>Plant Structures - enzymology</subject><subject>Plants</subject><subject>Plants, Genetically Modified</subject><subject>Plastids - metabolism</subject><subject>Solanum tuberosum - enzymology</subject><subject>Starch - analysis</subject><subject>Starch - biosynthesis</subject><subject>Starches</subject><subject>Sucrose - analysis</subject><subject>Sucrose - metabolism</subject><subject>Transgenic plants</subject><subject>Tubers</subject><issn>0032-0935</issn><issn>1432-2048</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpVkEtLxDAUhYMoOo4uXSpdiLvqTdI0naWILxDcjOuSpqkTyTQ1N0Xm35txxtfiPuB893A5hJxQuKQA8goBCiYg7YLRHTKhBWc5g6LaJROAtMOMiwNyiPgGkEQp98kBpQJKXooJcfOFybTvY7DNGK3vM99lg1MYbWuVy4aFx1SvbtR-OUaFJos-i99H3q15jCroRYarPgloMfuwcWH7L2zwUa0vxsaEI7LXKYfmeDun5OXudn7zkD893z_eXD_luoAy5qqTTdFVFWNNJVJrQZSNFkUpODfdTFImykrztqKMKmVY2Tat0Lo1UrczmZQpudj4DsG_jwZjvbSojXOqN37EWlKoZhJ4AvMNqINHDKarh2CXKqxqCvU63vpfvIk_2xqPzdK0v_Q2zwScbwGFWrkuqF5b_OMq0oNrn9MN9obRhx-ZcV6VrAD-Cb0hjZ0</recordid><startdate>20010701</startdate><enddate>20010701</enddate><creator>Fernie, Alisdair R.</creator><creator>Roessner, Ute</creator><creator>Trethewey, Richard N.</creator><creator>Willmitzer, Lothar</creator><general>Springer-Verlag</general><general>Springer</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20010701</creationdate><title>The contribution of plastidial phosphoglucomutase to the control of starch synthesis within the potato tuber</title><author>Fernie, Alisdair R. ; Roessner, Ute ; Trethewey, Richard N. ; Willmitzer, Lothar</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c406t-af7b4f8822b8522bd056bc546533ef9712568c3d8121aae26dbd5ccde7cd978c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2001</creationdate><topic>Agronomy. Soil science and plant productions</topic><topic>Amino acids</topic><topic>Amino Acids - analysis</topic><topic>Biological and medical sciences</topic><topic>Carbohydrate metabolism</topic><topic>Carbon Radioisotopes</topic><topic>Cytosol - metabolism</topic><topic>Economic plant physiology</topic><topic>Enzymes</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Glucose - analysis</topic><topic>Glucose - metabolism</topic><topic>Hexoses</topic><topic>In Vitro Techniques</topic><topic>Metabolism</topic><topic>Net assimilation, photosynthesis, carbon metabolism. Photorespiration, respiration, fermentation (anoxia, hypoxia)</topic><topic>Nutrition. Photosynthesis. Respiration. Metabolism</topic><topic>Organic acids</topic><topic>Phosphates</topic><topic>Phosphoglucomutase - metabolism</topic><topic>Photosynthesis, respiration. Anabolism, catabolism</topic><topic>Plant physiology and development</topic><topic>Plant Structures - enzymology</topic><topic>Plants</topic><topic>Plants, Genetically Modified</topic><topic>Plastids - metabolism</topic><topic>Solanum tuberosum - enzymology</topic><topic>Starch - analysis</topic><topic>Starch - biosynthesis</topic><topic>Starches</topic><topic>Sucrose - analysis</topic><topic>Sucrose - metabolism</topic><topic>Transgenic plants</topic><topic>Tubers</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Fernie, Alisdair R.</creatorcontrib><creatorcontrib>Roessner, Ute</creatorcontrib><creatorcontrib>Trethewey, Richard N.</creatorcontrib><creatorcontrib>Willmitzer, Lothar</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Planta</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Fernie, Alisdair R.</au><au>Roessner, Ute</au><au>Trethewey, Richard N.</au><au>Willmitzer, Lothar</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The contribution of plastidial phosphoglucomutase to the control of starch synthesis within the potato tuber</atitle><jtitle>Planta</jtitle><addtitle>Planta</addtitle><date>2001-07-01</date><risdate>2001</risdate><volume>213</volume><issue>3</issue><spage>418</spage><epage>426</epage><pages>418-426</pages><issn>0032-0935</issn><eissn>1432-2048</eissn><coden>PLANAB</coden><abstract>The 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.</abstract><cop>Berlin</cop><pub>Springer-Verlag</pub><pmid>11506365</pmid><doi>10.1007/s004250100521</doi><tpages>9</tpages></addata></record> |
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| subjects | Agronomy. Soil science and plant productions Amino acids Amino Acids - analysis Biological and medical sciences Carbohydrate metabolism Carbon Radioisotopes Cytosol - metabolism Economic plant physiology Enzymes Fundamental and applied biological sciences. Psychology Glucose - analysis Glucose - metabolism Hexoses In Vitro Techniques Metabolism Net assimilation, photosynthesis, carbon metabolism. Photorespiration, respiration, fermentation (anoxia, hypoxia) Nutrition. Photosynthesis. Respiration. Metabolism Organic acids Phosphates Phosphoglucomutase - metabolism Photosynthesis, respiration. Anabolism, catabolism Plant physiology and development Plant Structures - enzymology Plants Plants, Genetically Modified Plastids - metabolism Solanum tuberosum - enzymology Starch - analysis Starch - biosynthesis Starches Sucrose - analysis Sucrose - metabolism Transgenic plants Tubers |
| title | The contribution of plastidial phosphoglucomutase to the control of starch synthesis within the potato tuber |
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