期刊
ORGANIC GEOCHEMISTRY
卷 37, 期 11, 页码 1634-1638出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.orggeochem.2006.06.019
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The distributions of lignin-derived phenol dimers and cutin/suberin-derived hydroxy carboxylic acids were studied in a single analysis using CuO oxidation of maize leaves and stems as well as the plough layer of a silty soil cultivated with maize. Their relative contributions in soils and plants were compared to that of lignin monomers reported in a previous study. The x,16-dihydroxyhexadecanoic acid isomers and 9,10,18-trihydroxyoctadecanoic acid were the most abundant hydroxy acids in the soil. An x-hydroxy hexadecane-1,16-dioic acid was relatively enriched in soil compared to maize leaves. Hydroxy acids were relatively enriched in soils compared to lignin-derived phenols. Lignin dimers were relatively enriched in soil with regard to lignin monomers. Lignin dimers with 5,5 aryl-aryl and a,2-methyl linkages were the most concentrated dimers in soil compared to the plant tissue. (c) 2006 Elsevier Ltd. All rights reserved.
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