| Autor: |
Vanessa Escóssia Pegado Silva, Naissandra Bezerra da Silva, Marcos Paulo Gomes Pinheiro, Maria de Lourdes Freitas, Maria de Fátima Freire de Melo Ximenes |
| Jazyk: |
angličtina |
| Rok vydání: |
2013 |
| Předmět: |
|
| Zdroj: |
EntomoBrasilis, Vol 6, Iss 1, Pp 23-29 (2013) |
| Druh dokumentu: |
article |
| ISSN: |
1983-0572 |
| DOI: |
10.12741/ebrasilis.v6i1.232 |
| Popis: |
Sandflies are important vectors of tegumentary and visceral leishmaniasis in different countries. This study aimed at analyzing the histomorphological characteristics of digestive and reproductive organs in Lutzomyia wellcomei (Fraiha, Shaw & Lainson) using light microscopy techniques. Thirty females from the rural area of Nísia Floresta, Rio Grande do Norte state were selected, microsectioned and analyzed with an optical microscope using conventional hematoxylin-eosin staining. Results show three well-characterized regions in the digestive tube: the stomodeum, mesentery and proctodeum. The stomodeum is lined internally with a basal and epithelial membrane; the mesentery has a peritrophic matrix formed above the stomodeum lining consisting of the simple cubic epithelium overlapping the conjunctive, also common to a capsule of gonadal lining; and the proctodeum, which structurally resembles the mesentery, but with a pyloric sphincter limiting the posterior midgut. Enveloping the digestive tube is the peritoneal membrane, of mesodermal origin. Richly-detailed internal morphological characteristics of L. wellcomei have widened knowledge of this Leishmania braziliensis (Vianna)-transmitting species, an etiologic agent of American tegumentary leishmaniasis. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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