Naslov (eng)

Structural changes of needle epicuticular waxes of Abies cephalonica in relation to natural weathering.

Autor

Nikolić, Jelena
Miljković, Miroslav
Zlatković, Bojan
Nikolić, Biljana M.
Mitić, Zorica

Publisher

Opis (eng)

This is the first report on the structural changes of needle epicuticular waxes of A. cephalonica Loudon (Pinaceae) in relation to natural weathering. On the adaxial needle surface where stomata were absent, irregular, often rounded wax structures in form of granules were observed. The amount of granules increased with needle aging, so they were the most present on the oldest (three-year-old) needle. On the abaxial needle surface, where stomata were arranged in longitudinal rows forming two parallel bends, the main wax crystalloids were tubules with a tendency to concentrate within stomatal complexes and between them in the stomatal rows. Namely, tubules were quite dense with reticular aspect inside the stomatal pores, but sparsely present on the epistomatal rims and non-stomatal surfaces of the stomatal bands. In the course of time the tubules reached more advanced stages of agglomeration, thickening and fusion forming amorphous wax crusts. Therefore, both the tendency of amount of granules to increase and the degree of degradation of tubules into amorphous crusts as the result of natural ageing process were well-documented.

Jezik

engleski

Datum

2022

Licenca

© All rights reserved

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Radovi Instituta za šumarstvo