Figure 2From: Distribution of Rickettsia rickettsii in ovary cells of Rhipicephalus sanguineus (Latreille1806) (Acari: Ixodidae)Histological sections of the ovary of semi-engorged females infected by R. rickettsii , using Giemsa staining. (A-F) Detail of the oocytes in developmental stages I, II and III with the presence of the bacterium R. rickettsii in the cytoplasm (dotted circle). ch, choriun; gv, germinative vesicle; lu, lumen; nu, nucleus; p, pedicel; woc, ovary wall cells.Back to article page