Artikel,

Composition of cuticular waxes on Osmunda regalis fronds

, und .
Journal of Chemical Ecology, 26 (2): 399-412 (2000)

Zusammenfassung

The chemical composition of rodlet-shaped wax crystals on fronds of Osmunda regalis was analyzed. In all, 139 compounds belonging to 14 homologous series were detected in the surface extract. They included typical plant wax constituents: alkanes (C-25-C-33), alkyl esters (C-38-C-50), primary alcohols (C-22-C-32), secondary alcohols (C-27 and C-29), ketones (C-27-C-33), aldehydes (C-24-C-34), fatty acids (C-24-C-32), and beta-sitosterol. Additionally, bifunctional C-29 compounds (alpha-diketone, ketols, diols) were identified. Nonacosan-10-one as the most abundant single compound, together with its bifunctional derivatives, is likely to form the wax crystals found on O. regalis fronds. Hence, a new type of wax crystals is defined morphologically and chemically. The occurrence of comparable wax aggregates on surfaces of higher plants is discussed.

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