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- IOC - Artigos de Periódicos [12596]
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ANATOMIA E HISTOLOGIA DAS GLÂNDULAS SALIVARES NOS TRIATOMÍNEOS
Lacombe, Dyrce | Fecha del documento:
1999
Titulo alternativo
Anatomy and Histology of Salivary Glands of Triatomine BugsAutor
Afiliación
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Entomologia. Rio de Janeiro, RJ, Brasil.
Resumen en ingles
Histological studies upon the
salivary glands of ten species of triatomine bugs were performed looking for their number and structural organization in different genera. It was possible to evaluate the celular epithelium type of each
gland, as well as the merocrine and apocrine secretions of the glands. Secretion run until the hilo and
after to salivary pump and hypofaringe. The glandular components, D1, D2 and D3 are always present
in the Triatoma, Panstrongylus and Diptelogaster but in Rhodnius there are only the first two pairs of
glands. The salivary channels and the hilo are analyzed by histology. The whole pair D3 has a clear
valve that regularizes the exit of the secretions to the hilo. According to the genus the valves appear in
different locations. They have low and dense epithelium, and their nucleus are rich in chromatin. The
secondary channels leaving these valves, are very different, with clear chitinous ringer, low level of
chromatin in the nucleus and homogeneous cytoplasm.
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