Abstract

BRUNO, Gloria et al. Effects of the environmental pollution on the anatomy of Ligustrum lucidum (Oleaceae) leaf. Bol. Soc. Argent. Bot. [online]. 2007, vol.42, n.3-4, pp.231-236. ISSN 1851-2372.

«Siempreverde», cultivated in the downtown of Córdoba City, Prov. Córdoba, Argentina. The results are confronted with studies made in plants of the same species, which grow naturalized in distant areas without pollution. For it, fresh and conserved materials in FAA were used. The study of epidermis was made applying «the scraped» and the «peeling» techniques and replicas «in situ» were taken. The types and frequency of stomas and trichomes, and estomatic index were determined. The internal structure of leaf was studied in cross sections and colored with astral blue-safranina or with hematoxylin, saffranin and fast green. The leaf epidermis variables obtained in polluted and non-polluted areas were compared statistically . The results show that in the polluted areas, the frequency of stomas, trichomes and stomatic index of the leaf are higher than in not polluted areas; and a reduction in palisade parenchyma thickness respect to the spongy one in the mesophyll is observed in polluted leaf.

Keywords : Ligustrum lucidum; Environmental pollution; Leaf; Anatomy.

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