Análise morfométrica das células de cloro de Poecilia vivipara expostas a frações da folha e da casca do caule de Caryocar brasiliensis
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Data
2003
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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.
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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.