title: Morphological characterization of the ovary and oocytes vitellogenesis of the tick Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae).
abstract: This study presents the morphology of the ovary, as well as the process of the vitellogenesis in oocytes of the tick Rhipicephalus sanguineus. The ovary of these individuals is of the panoistic type; therefore, it lacks nurse cells. This organ consists of a single tubular structure, continuous, and composed of a wall formed by small epithelial cells with rounded nuclei which delimit the lumen. The oocytes in the different developmental stages in this tick species were classified into five stages (I-V). They remain attached to the ovary during vitellogenesis by a cellular pedicel and afterwards the mature oocytes (stage V) are released into the ovary lumen.
authors.affiliation: Departamento de Biologia, Instituto de Biociências, UNESP, Av. 24 A, no. 1515, Cx. Postal 199, Rio Claro, SP 13506-900, Brazil.
authors.forename: Patrícia Rosa
authors.initials: PR
authors.lastname: de Oliveira
authors.forename: Gervásio Henrique
authors.initials: GH
authors.lastname: Bechara
authors.forename: Sandra Eloisi
authors.initials: SE
authors.lastname: Denardi
authors.forename: Erika Takagi
authors.initials: ET
authors.lastname: Nunes
authors.forename: Maria Izabel
authors.initials: MI
authors.lastname: Camargo Mathias
mesh_terms: D010131:Aminosalicylic Acid; D000818:Animals; D001978:Bromphenol Blue; D004396:Coloring Agents; D005260:Female; D005456:Fluorescent Dyes; D006651:Histocytochemistry; D008055:Lipids / Q000032:analysis; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D009865:Oocytes / Q000737:chemistry / Q000145:classification / Q000502:physiology / Q000648:ultrastructure; D010053:Ovary / Q000033:anatomy & histology / Q000502:physiology / Q000648:ultrastructure; D010078:Oxazines; D011134:Polysaccharides / Q000032:analysis; D011506:Proteins / Q000032:analysis; D048508:Rhipicephalus sanguineus / Q000033:anatomy & histology* / Q000737:chemistry / Q000502:physiology*; D014818:Vitellogenesis / Q000502:physiology*
chemical_list: D004396:Coloring Agents; D005456:Fluorescent Dyes; D008055:Lipids; D010078:Oxazines; D011134:Polysaccharides; D011506:Proteins; D001978:Bromphenol Blue; C008619:Nile Blue; D010131:Aminosalicylic Acid