Cell Death in Salivary Glands of Rhipicephalus (Boophilus) microplus (Canestrini, 1887) (Acari: Ixodidae) Females at Semi-engorged Feeding Stage
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2010-10-01
Autores
Nunes, Erika Takagi
Scopinho Furquim, Karim Christina [UNESP]
Bechara, Gervasio Henrique [UNESP]
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Informa Healthcare
Resumo
The ultrastructure of the salivary glands of Rhipicephalus (Boophilus) microplus females is described during feeding. In beginning of feeding, individuals show acini I with many mitochondria and wide basal labyrinth in peripheral cells; glycoprotein granules only in b and c(3) cells (acini II); and epithelial interstitial cells with developed basal labyrinth between f cells (acini III). Semi-engorged females show cells in degeneration, with autophagic vacuoles, lysosomes, myelin figures, and irregular, condensed, and/or fragmented nuclei, in addition to apoptotic bodies. R. B. microplus points to apoptosis in these organs before the detachment from the host, in contrast to others tick species.</.
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Ultrastructural Pathology. New York: Informa Healthcare, v. 34, n. 5, p. 288-300, 2010.