Aspectos do sistema reprodutor masculino em espécies de Triatoma (Hemiptera, Reduviidae, Triatominae)

• Autor(a) principal: Freitas, Simone Patrícia Carneiro de
• Data de Publicação: 2007
• Tipo de documento: Tese
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/859
• topic: Barbeiro; Hemiptera; Reprodução; Triatominae; Hemiptera; Reproduction; CNPQ::CIENCIAS BIOLOGICAS::ZOOLOGIA::MORFOLOGIA DOS GRUPOS RECENTES

In Triatominae, Triatoma rubrofasciata is a cosmopolitan species, found in some cities of the Brazilian coast and Triatoma brasiliensis is main vector of Chagas disease in the Northeastern Brazil, distributed in the States of Maranhão, Piauí, Ceará, Rio Grande do Norte, Paraíba, Pernambuco, Bahia and Minas Gerais. Recent studies showed the existance of the brasiliensis complex constituted by: T. brasiliensis brasiliensis, T. brasiliensis macromelasoma, T. juazeirensis and T. melanica. In present study were related the morphological and citochemical caracteristics of the male reproductive system involved with taxonomics and reproductives aspects in Triatoma species. The follicles testis in T. rubrofasciata presented four categories, a long one, two medium, two short and two very short follicles, whereas the other species maintened the normal classification for Triatoma, two long, two medium and three short follicles. In relation to the accessory glands of T. rubrofasciata, T. brasiliensis and T. melanica, secretory granules we seen in the glandular epithelium before the fifth day of adult life, in males starved. Carbohidrates and proteins production, possibly for spermatophore formation, begin in T. melanica before than in T. brasiliensis. However in this last species this production is more intense from the fifth day. Being the spermatophore essential for the transport and maintenance of sperm in insects, studies on the secretory functions of the male accessory glands may contribute to the development of new control strategies of vectors of Chagas disease.