Resin acids of Pinus resinosa needles |
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Authors: | Duane F Zinkel Wilbur B Clarke |
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Institution: | 1. Southern University, Department of Chemistry, Southern Branch, P.O. Box 9797, Baton Rouge, LA 70813, U.S.A. |
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Abstract: | The principal resin acids in the needles of Pinus resinosa are the labdane diterpenes, the new 8,13-epoxy-14-labden-19-oic acid (epimanoyl oxide acid), 8,13β-epoxy-14-labden-19-oic acid (manoyl oxide acid), 8(17),E-12,14-labdatrien-19-oic acid (communic acid) and 15-oxo-8(17)-labden-19-oic acid (imbricataloic acid). A survey of needles from representative populations of P. resinosa showed a limited variability in resin acid composition consistent with the uniformity of other traits. The composition of needle resin acids for putative P. nigra x resinosa hybrids strongly suggests the improbability of P. resinosa as the pollen parent. |
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Keywords: | Pinaceae needles labdane diterpenes hybrids |
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