title: Morphological, histological, and ultrastructural characterization of degenerating salivary glands in females of the cattle-tick Rhipicephalus (Boophilus) microplus (CANESTRINI, 1887) (Acari: Ixodidae).
abstract: The present study describes the morphology and ultrastructure of the salivary glands of semi-engorged females of the southern cattle-tick Rhipicephalus (Boophilus) microplus. The acini that compose these glands, at that specific feeding stage, show cells featuring degenerative process of the salivary glands, such as: vacuolated cytoplasm, condensed chromatin, fragmented nuclei, and presence of apoptotic bodies. In addition, the presence of microorganisms was detected, with morphology typical of protozoa, inside these organs.
authors.affiliation: Departamento de Biologia, Instituto de Biociências, UNESP, Av. 24(A), No. 1515. Cx. Postal 199, CEP 13506-900, Rio Claro, SP, Brazil.
authors.forename: Erika Takagi
authors.initials: ET
authors.lastname: Nunes
authors.forename: Gervásio Henrique
authors.initials: GH
authors.lastname: Bechara
authors.forename: Kelly Cristina
authors.initials: KC
authors.lastname: Saito
authors.forename: Sandra Eloisi
authors.initials: SE
authors.lastname: Denardi
authors.forename: Patrícia Rosa
authors.initials: PR
authors.lastname: Oliveira
authors.forename: Maria Izabel Camargo
authors.initials: MI
authors.lastname: Mathias
mesh_terms: D000818:Animals; D002417:Cattle; D002467:Cell Nucleus / Q000473:pathology; D002843:Chromatin / Q000473:pathology; D056890:Eukaryota / Q000302:isolation & purification; D005260:Female; D008853:Microscopy; D048494:Rhipicephalus / Q000033:anatomy & histology* / Q000469:parasitology / Q000648:ultrastructure; D012469:Salivary Glands / Q000033:anatomy & histology* / Q000469:parasitology / Q000473:pathology / Q000648:ultrastructure; D013194:Staining and Labeling
chemical_list: D002843:Chromatin