Ultrastructural morphology of the male and female genital tracts of Psoroptes spp. (Acari : Astigmata : Psoroptidae)
2005
Lekimme, Mireille | Leclercq-Smekens, M. | Devignon, C. | Leclipteux, Thierry | Poumay, Y. | Losson, Bertrand
anglais. peer reviewed
Afficher plus [+] Moins [-]anglais. The structure of the male and female genital systems of the astigmatid mite Psoroptes ovis (Hering) is described. The male genital system is composed of a paired testis, fused at its proximal part, two vasa deferentia, an ejaculatory duct, into which a single accessory gland opens, and a copulatory organ. The testis is characterized by a peripheric syncytial cell surrounding spermatogonia, spermatocytes, spermatids and spermatozoa which are distributed regularly in the gonad according to the sequence of spermatogenesis. The female genital system consists of a copulatory pore (the bursa copulatrix), a seminal receptacle, paired ovaries and oviducts, a glandular uterus and an ovipositor which leads to the oviporus. Ovaries are composed of somatic cells, germ cells and a central cell, with a multilobular nucleus, connected to oocytes by a stalk. Similarities with other astigmatic mites belonging to Psoroptidia and Acaridia are also discussed.
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