Changes in carbohydrate metabolism in fine roots of the native European black poplar (Populus nigra L.) in a heavy-metal-polluted environment.
Identifieur interne : 003C52 ( Main/Curation ); précédent : 003C51; suivant : 003C53Changes in carbohydrate metabolism in fine roots of the native European black poplar (Populus nigra L.) in a heavy-metal-polluted environment.
Auteurs : Krzysztof Stobrawa [Pologne] ; Gabriela Lorenc-Pluci SkaSource :
- The Science of the total environment [ 0048-9697 ] ; 2007.
Descripteurs français
- KwdFr :
- Glucosyltransferases (métabolisme), Hexose (métabolisme), Métaux lourds (toxicité), Oligosaccharides (métabolisme), Polluants du sol (toxicité), Populus (effets des médicaments et des substances chimiques), Populus (métabolisme), Racines de plante (effets des médicaments et des substances chimiques), Racines de plante (métabolisme), beta-Fructofuranosidase (métabolisme).
- MESH :
- effets des médicaments et des substances chimiques : Populus, Racines de plante.
- métabolisme : Glucosyltransferases, Hexose, Oligosaccharides, Populus, Racines de plante, beta-Fructofuranosidase.
- toxicité : Métaux lourds, Polluants du sol.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Glucosyltransferases, Hexoses, Oligosaccharides, beta-Fructofuranosidase.
- chemical , toxicity : Metals, Heavy, Soil Pollutants.
- drug effects : Plant Roots, Populus.
- metabolism : Plant Roots, Populus.
Abstract
Effects of copper-smelter-related deposition of heavy metals in the soil on carbohydrate metabolism of fine roots of the native European black poplar were investigated in spring and autumn. Total soluble non-structural carbohydrates in fine roots from trees growing in the polluted habitat were lower than in a control site, but this was directly associated only with a lower raffinose concentration. Neither glucose nor fructose concentrations differed significantly between polluted and unpolluted sites. In contrast, the galactose concentration was higher in the presence of heavy metals, especially in autumn. Also the stachyose concentration was higher in the polluted site, but only in autumn, suggesting it could be an alternative way of detoxification of galactose. No difference between control and polluted stands was observed in sucrose concentration. However, estimates of sucrolytic activity revealed markedly higher activities of sucrose synthase (SuSy), soluble acid (AI) and neutral (NI) invertases in the polluted stand than in the control. In contrast, the estimated glycolytic enzyme activities were not affected by the presence of heavy metals in soil.
DOI: 10.1016/j.scitotenv.2006.11.019
PubMed: 17182084
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pubmed:17182084Le document en format XML
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<author><name sortKey="Stobrawa, Krzysztof" sort="Stobrawa, Krzysztof" uniqKey="Stobrawa K" first="Krzysztof" last="Stobrawa">Krzysztof Stobrawa</name>
<affiliation wicri:level="1"><nlm:affiliation>Institute of Dendrology, Polish Academy of Sciences; Parkowa 5, 62-035 Kórnik, Poland. kstobrawa@o2.pl</nlm:affiliation>
<country xml:lang="fr">Pologne</country>
<wicri:regionArea>Institute of Dendrology, Polish Academy of Sciences; Parkowa 5, 62-035 Kórnik</wicri:regionArea>
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<author><name sortKey="Lorenc Pluci Ska, Gabriela" sort="Lorenc Pluci Ska, Gabriela" uniqKey="Lorenc Pluci Ska G" first="Gabriela" last="Lorenc-Pluci Ska">Gabriela Lorenc-Pluci Ska</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Glucosyltransferases (metabolism)</term>
<term>Hexoses (metabolism)</term>
<term>Metals, Heavy (toxicity)</term>
<term>Oligosaccharides (metabolism)</term>
<term>Plant Roots (drug effects)</term>
<term>Plant Roots (metabolism)</term>
<term>Populus (drug effects)</term>
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<keywords scheme="KwdFr" xml:lang="fr"><term>Glucosyltransferases (métabolisme)</term>
<term>Hexose (métabolisme)</term>
<term>Métaux lourds (toxicité)</term>
<term>Oligosaccharides (métabolisme)</term>
<term>Polluants du sol (toxicité)</term>
<term>Populus (effets des médicaments et des substances chimiques)</term>
<term>Populus (métabolisme)</term>
<term>Racines de plante (effets des médicaments et des substances chimiques)</term>
<term>Racines de plante (métabolisme)</term>
<term>beta-Fructofuranosidase (métabolisme)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Glucosyltransferases</term>
<term>Hexoses</term>
<term>Oligosaccharides</term>
<term>beta-Fructofuranosidase</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="toxicity" xml:lang="en"><term>Metals, Heavy</term>
<term>Soil Pollutants</term>
</keywords>
<keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Plant Roots</term>
<term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="effets des médicaments et des substances chimiques" xml:lang="fr"><term>Populus</term>
<term>Racines de plante</term>
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<keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Plant Roots</term>
<term>Populus</term>
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<keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Glucosyltransferases</term>
<term>Hexose</term>
<term>Oligosaccharides</term>
<term>Populus</term>
<term>Racines de plante</term>
<term>beta-Fructofuranosidase</term>
</keywords>
<keywords scheme="MESH" qualifier="toxicité" xml:lang="fr"><term>Métaux lourds</term>
<term>Polluants du sol</term>
</keywords>
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<front><div type="abstract" xml:lang="en">Effects of copper-smelter-related deposition of heavy metals in the soil on carbohydrate metabolism of fine roots of the native European black poplar were investigated in spring and autumn. Total soluble non-structural carbohydrates in fine roots from trees growing in the polluted habitat were lower than in a control site, but this was directly associated only with a lower raffinose concentration. Neither glucose nor fructose concentrations differed significantly between polluted and unpolluted sites. In contrast, the galactose concentration was higher in the presence of heavy metals, especially in autumn. Also the stachyose concentration was higher in the polluted site, but only in autumn, suggesting it could be an alternative way of detoxification of galactose. No difference between control and polluted stands was observed in sucrose concentration. However, estimates of sucrolytic activity revealed markedly higher activities of sucrose synthase (SuSy), soluble acid (AI) and neutral (NI) invertases in the polluted stand than in the control. In contrast, the estimated glycolytic enzyme activities were not affected by the presence of heavy metals in soil.</div>
</front>
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<Title>The Science of the total environment</Title>
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<ArticleTitle>Changes in carbohydrate metabolism in fine roots of the native European black poplar (Populus nigra L.) in a heavy-metal-polluted environment.</ArticleTitle>
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<Abstract><AbstractText>Effects of copper-smelter-related deposition of heavy metals in the soil on carbohydrate metabolism of fine roots of the native European black poplar were investigated in spring and autumn. Total soluble non-structural carbohydrates in fine roots from trees growing in the polluted habitat were lower than in a control site, but this was directly associated only with a lower raffinose concentration. Neither glucose nor fructose concentrations differed significantly between polluted and unpolluted sites. In contrast, the galactose concentration was higher in the presence of heavy metals, especially in autumn. Also the stachyose concentration was higher in the polluted site, but only in autumn, suggesting it could be an alternative way of detoxification of galactose. No difference between control and polluted stands was observed in sucrose concentration. However, estimates of sucrolytic activity revealed markedly higher activities of sucrose synthase (SuSy), soluble acid (AI) and neutral (NI) invertases in the polluted stand than in the control. In contrast, the estimated glycolytic enzyme activities were not affected by the presence of heavy metals in soil.</AbstractText>
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<ForeName>Krzysztof</ForeName>
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