Ultrastructural Analysis of the Oocytes of Female Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae) Ticks Subjected to the Action of Azadirachta indica A. Juss (Neem)
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Data
2012-02-01
Autores
Denardi, Sandra Eloisi [UNESP]
Bechara, Gervasio Henrique [UNESP]
de Oliveira, Patricia Rosa [UNESP]
Camargo Mathias, Maria Izabel [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Informa Healthcare
Resumo
The present study provides ultrastructural information about the acaricidal effects of neem (Azadirachta indica A. Juss) on the ovaries of R. sanguineus engorged females. In general, the main damage caused in the oocytes was alteration in the shape of the cell and of the germinal vesicle, ring-shaped nucleolus, cytoplasmic vacuolation, and disorganization of the organelles and of the cell membranes (including the chorion), all of which indicate that these cells could be in the process of death. The results showed that azadirachtin would be an efficient acaricide agent for inhibiting and/or neutralizing the reproduction process of R. sanguineus females, impairing the reproductive ability of this species.
Descrição
Palavras-chave
Azadirachtin, Reproduction, Rhipicephalus sanguineu, Ultrastructure
Como citar
Ultrastructural Pathology. New York: Informa Healthcare, v. 36, n. 1, p. 56-67, 2012.