Abstract

Epicuticular leaf waxes of Castanea sativa and Aesculus hippocastanum contain the same lipids in form of homologous series of hydrocarbons, wax esters, aldehydes, primary alcohols and fatty acids in similar concentrations without any main component dominating. In Ae. hippocastanum wax acetates are present, additionally. Both waxes are found to contain triterpenols and triterpenol esters in remarkable amounts. β-Amyrin, α-amyrin and lupeol are present in both plant waxes, in Ae. hippocastanum wax friedelanol and friedelanone, additionally. The epidermis of both plants are covered with a thin continuous wax layer without crystalloids. But the adaxial leaf surface of C. sativa shows granular wax sculptures and therefore a different micromorphological ultrastructure for both leaf sides.

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