Análise morfométrica das células de cloro de Poecilia vivipara expostas a frações da folha e da casca do caule de Caryocar brasiliensis

Resumo

Fractions of Caryocar brasiliensis leaf and bark, tested as molluscicidal, fought the intermediary host of schistosomiasis. The ecological niche of this mollusk is related to water sources. Besides this, a fungitoxic action of the ethyl-acetate fraction (leaf) was verified, exhibiting high activity towards Paracoccidioides brasiliensis. The gill epithelium of Poecilia vivipara (Cyprinodontiformes, Poeciliidae) was used to test the toxicity of these fractions to animal cells. Quantitative analyses demonstrated a decrease in the density of chloride cells exposed to the leaf fractions and an increase in those exposed to bark fractions. The leaf and bark fractions induced a decrease in the area of the chloride cells (CC) in the gill filament. The perimeter of the CC did not suffer significant changes in face of these fractions. The aqueous fraction of the leaf is more toxic to the guaru. Bark fractions are less debilitating, and can be employed in the control of cell populations, showing high efficacy at it.

Descrição

Palavras-chave

Célula de cloro, Guaru, Moluscicida, Morfometria, Pequi, Chloride cell, Guaru, Molluscicidal, Morphometry

Citação

SILVA, Luciana Damacena et al. Análise morfométrica das células de cloro de Poecilia vivipara expostas a frações da folha e da casca do caule de Caryocar brasiliensis. Acta Scientiarum. Biological Sciences, Maringá, v. 25, n. 1, p. 195-201, 2003.