Organ-Specific Composition of Epicuticular Waxes of Beech (Fagus sylvatica L.) Leaves and Seeds

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Abstract
The leaf, seed shell and seed coat epicuticular waxes of beech (Fagus sylvatica L.) contained the following common wax lipids: alkanes, wax esters, aldehydes, primary alcohols and fatty acids, all occurring in a homologous series of very long chained and saturated components with variations in the maxima in each homologous series. In addition, small amounts of benzylacyl esters in leaves, and ketones in seed shells and coats were also found in homologous series. β-Sitosterol was present only in seed shells and coats. Free primary alcohols (34.8%) were found to be the major class in the leaves whereas free fatty acids were predom inant in seed shells (39.5%) and coats (42.1% ). The beech organs studied showed always a specific wax composition.

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