Fructans, but Not the Sucrosyl-Galactosides, Raffinose and Loliose, Are Affected by Drought Stress in Perennial Ryegrass
The aim of this study was to evaluate the putative role of the sucrosyl-galactosides, loliose [α-D-Gal (1,3) α-D-Glc (1,2) β-D-Fru] and raffinose [α-D-Gal (1,6) α-D-Glc (1,2) β-D-Fru], in drought tolerance of perennial ryegrass and to compare it with that of fructans. To that end, the loliose biosyn...
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| Veröffentlicht in: | Plant physiology (Bethesda) 2003-08, Vol.132 (4), p.2218-2229 |
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| creator | Amiard, Véronique Annette Morvan-Bertrand Jean-Pierre Billard Claude Huault Keller, Felix Marie-Pascale Prud'homme |
| description | The aim of this study was to evaluate the putative role of the sucrosyl-galactosides, loliose [α-D-Gal (1,3) α-D-Glc (1,2) β-D-Fru] and raffinose [α-D-Gal (1,6) α-D-Glc (1,2) β-D-Fru], in drought tolerance of perennial ryegrass and to compare it with that of fructans. To that end, the loliose biosynthetic pathway was first established and shown to operate by a UDP-Gal: sucrose (Suc) 3-galactosyltransferase, tentatively termed loliose synthase. Drought stress increased neither the concentrations of loliose and raffinose nor the activities of loliose synthase and raffinose synthase (EC 2.4.1.82). Moreover, the concentrations of the raffinose precursors, myoinositol and galactinol, as well as the gene expressions of myoinositol 1-phosphate synthase (EC 5.5.1.4) and galactinol synthase (EC 2.4.1.123) were either decreased or unaffected by drought stress. Taken together, these data are not in favor of an obvious role of sucrosyl-galactosides in drought tolerance of perennial ryegrass at the vegetative stage. By contrast, drought stress caused fructans to accumulate in leaf tissues, mainly in leaf sheaths and elongating leaf bases. This increase was mainly due to the accumulation of long-chain fructans (degree of polymerization > 8) and was not accompanied by a Suc increase. Interestingly, Suc but not fructan concentrations greatly increased in drought-stressed roots. Putative roles of fructans and sucrosyl-galactosides are discussed in relation to the acquisition of stress tolerance. |
| doi_str_mv | 10.1104/pp.103.022335 |
| format | Article |
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To that end, the loliose biosynthetic pathway was first established and shown to operate by a UDP-Gal: sucrose (Suc) 3-galactosyltransferase, tentatively termed loliose synthase. Drought stress increased neither the concentrations of loliose and raffinose nor the activities of loliose synthase and raffinose synthase (EC 2.4.1.82). Moreover, the concentrations of the raffinose precursors, myoinositol and galactinol, as well as the gene expressions of myoinositol 1-phosphate synthase (EC 5.5.1.4) and galactinol synthase (EC 2.4.1.123) were either decreased or unaffected by drought stress. Taken together, these data are not in favor of an obvious role of sucrosyl-galactosides in drought tolerance of perennial ryegrass at the vegetative stage. By contrast, drought stress caused fructans to accumulate in leaf tissues, mainly in leaf sheaths and elongating leaf bases. This increase was mainly due to the accumulation of long-chain fructans (degree of polymerization > 8) and was not accompanied by a Suc increase. Interestingly, Suc but not fructan concentrations greatly increased in drought-stressed roots. Putative roles of fructans and sucrosyl-galactosides are discussed in relation to the acquisition of stress tolerance.</description><identifier>ISSN: 0032-0889</identifier><identifier>EISSN: 1532-2548</identifier><identifier>DOI: 10.1104/pp.103.022335</identifier><identifier>PMID: 12913176</identifier><identifier>CODEN: PPHYA5</identifier><language>eng</language><publisher>Rockville, MD: American Society of Plant Biologists</publisher><subject>Biological and medical sciences ; Chemical bases ; Disasters ; Drought ; Drought resistance ; Environmental Stress and Adaptation ; Enzymes ; Fructans ; Fructans - metabolism ; Fundamental and applied biological sciences. Psychology ; Gene Expression Regulation, Plant ; Leaf blade ; Leaf sheaths ; Leaves ; Lolium - genetics ; Lolium - growth & development ; Lolium - metabolism ; Metabolism ; Monosaccharides - metabolism ; Organ Specificity ; Photosynthesis, respiration. Anabolism, catabolism ; Plant Leaves - metabolism ; Plant physiology and development ; Plant roots ; Plant Roots - metabolism ; Plant tissues ; Plants ; Raffinose - biosynthesis ; Raffinose - metabolism ; Soil water content ; Sucrose - metabolism ; Trisaccharides - metabolism ; Water - metabolism</subject><ispartof>Plant physiology (Bethesda), 2003-08, Vol.132 (4), p.2218-2229</ispartof><rights>Copyright 2003 American Society of Plant Biologists</rights><rights>2003 INIST-CNRS</rights><rights>Copyright American Society of Plant Physiologists Aug 2003</rights><rights>Copyright © 2003, The American Society for Plant Biologists 2003</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c497t-ff111f4fdd8d7ada0f25fe3d0ba7af301c1055b8270ead577876f2f4049a5873</citedby><cites>FETCH-LOGICAL-c497t-ff111f4fdd8d7ada0f25fe3d0ba7af301c1055b8270ead577876f2f4049a5873</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/4281299$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/4281299$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>230,315,781,785,804,886,27929,27930,58022,58255</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=15091619$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/12913176$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Amiard, Véronique</creatorcontrib><creatorcontrib>Annette Morvan-Bertrand</creatorcontrib><creatorcontrib>Jean-Pierre Billard</creatorcontrib><creatorcontrib>Claude Huault</creatorcontrib><creatorcontrib>Keller, Felix</creatorcontrib><creatorcontrib>Marie-Pascale Prud'homme</creatorcontrib><title>Fructans, but Not the Sucrosyl-Galactosides, Raffinose and Loliose, Are Affected by Drought Stress in Perennial Ryegrass</title><title>Plant physiology (Bethesda)</title><addtitle>Plant Physiol</addtitle><description>The aim of this study was to evaluate the putative role of the sucrosyl-galactosides, loliose [α-D-Gal (1,3) α-D-Glc (1,2) β-D-Fru] and raffinose [α-D-Gal (1,6) α-D-Glc (1,2) β-D-Fru], in drought tolerance of perennial ryegrass and to compare it with that of fructans. To that end, the loliose biosynthetic pathway was first established and shown to operate by a UDP-Gal: sucrose (Suc) 3-galactosyltransferase, tentatively termed loliose synthase. Drought stress increased neither the concentrations of loliose and raffinose nor the activities of loliose synthase and raffinose synthase (EC 2.4.1.82). Moreover, the concentrations of the raffinose precursors, myoinositol and galactinol, as well as the gene expressions of myoinositol 1-phosphate synthase (EC 5.5.1.4) and galactinol synthase (EC 2.4.1.123) were either decreased or unaffected by drought stress. Taken together, these data are not in favor of an obvious role of sucrosyl-galactosides in drought tolerance of perennial ryegrass at the vegetative stage. By contrast, drought stress caused fructans to accumulate in leaf tissues, mainly in leaf sheaths and elongating leaf bases. This increase was mainly due to the accumulation of long-chain fructans (degree of polymerization > 8) and was not accompanied by a Suc increase. Interestingly, Suc but not fructan concentrations greatly increased in drought-stressed roots. Putative roles of fructans and sucrosyl-galactosides are discussed in relation to the acquisition of stress tolerance.</description><subject>Biological and medical sciences</subject><subject>Chemical bases</subject><subject>Disasters</subject><subject>Drought</subject><subject>Drought resistance</subject><subject>Environmental Stress and Adaptation</subject><subject>Enzymes</subject><subject>Fructans</subject><subject>Fructans - metabolism</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Gene Expression Regulation, Plant</subject><subject>Leaf blade</subject><subject>Leaf sheaths</subject><subject>Leaves</subject><subject>Lolium - genetics</subject><subject>Lolium - growth & development</subject><subject>Lolium - metabolism</subject><subject>Metabolism</subject><subject>Monosaccharides - metabolism</subject><subject>Organ Specificity</subject><subject>Photosynthesis, respiration. 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Psychology</topic><topic>Gene Expression Regulation, Plant</topic><topic>Leaf blade</topic><topic>Leaf sheaths</topic><topic>Leaves</topic><topic>Lolium - genetics</topic><topic>Lolium - growth & development</topic><topic>Lolium - metabolism</topic><topic>Metabolism</topic><topic>Monosaccharides - metabolism</topic><topic>Organ Specificity</topic><topic>Photosynthesis, respiration. 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To that end, the loliose biosynthetic pathway was first established and shown to operate by a UDP-Gal: sucrose (Suc) 3-galactosyltransferase, tentatively termed loliose synthase. Drought stress increased neither the concentrations of loliose and raffinose nor the activities of loliose synthase and raffinose synthase (EC 2.4.1.82). Moreover, the concentrations of the raffinose precursors, myoinositol and galactinol, as well as the gene expressions of myoinositol 1-phosphate synthase (EC 5.5.1.4) and galactinol synthase (EC 2.4.1.123) were either decreased or unaffected by drought stress. Taken together, these data are not in favor of an obvious role of sucrosyl-galactosides in drought tolerance of perennial ryegrass at the vegetative stage. By contrast, drought stress caused fructans to accumulate in leaf tissues, mainly in leaf sheaths and elongating leaf bases. This increase was mainly due to the accumulation of long-chain fructans (degree of polymerization > 8) and was not accompanied by a Suc increase. Interestingly, Suc but not fructan concentrations greatly increased in drought-stressed roots. Putative roles of fructans and sucrosyl-galactosides are discussed in relation to the acquisition of stress tolerance.</abstract><cop>Rockville, MD</cop><pub>American Society of Plant Biologists</pub><pmid>12913176</pmid><doi>10.1104/pp.103.022335</doi><tpages>12</tpages><oa>free_for_read</oa></addata></record> |
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| source | MEDLINE; JSTOR Archive Collection A-Z Listing; Oxford University Press Journals All Titles (1996-Current); EZB-FREE-00999 freely available EZB journals |
| subjects | Biological and medical sciences Chemical bases Disasters Drought Drought resistance Environmental Stress and Adaptation Enzymes Fructans Fructans - metabolism Fundamental and applied biological sciences. Psychology Gene Expression Regulation, Plant Leaf blade Leaf sheaths Leaves Lolium - genetics Lolium - growth & development Lolium - metabolism Metabolism Monosaccharides - metabolism Organ Specificity Photosynthesis, respiration. Anabolism, catabolism Plant Leaves - metabolism Plant physiology and development Plant roots Plant Roots - metabolism Plant tissues Plants Raffinose - biosynthesis Raffinose - metabolism Soil water content Sucrose - metabolism Trisaccharides - metabolism Water - metabolism |
| title | Fructans, but Not the Sucrosyl-Galactosides, Raffinose and Loliose, Are Affected by Drought Stress in Perennial Ryegrass |
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