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  • Title: Cell death in salivary glands of Rhipicephalus (Boophilus) microplus (Canestrini, 1887) (Acari: Ixodidae) females at semi-engorged feeding stage.
    Author: Nunes ET, Furquim KC, Bechara GH, Camargo-Mathias MI.
    Journal: Ultrastruct Pathol; 2010 Oct; 34(5):288-300. PubMed ID: 20568983.
    Abstract:
    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 c3 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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