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Ultrastructural Study of the Gametocytes and Merogonic Stages of Fallisia audaciosa (Haemosporina: Garniidae) that Infect Neutrophils of the Lizard Plica umbra (Reptilia: Iguanidae)

Silva, Edilene O.; Diniz, José Antonio P.; Lainson, Ralph; DaMatta, Renato; Souza, Wanderley de.
Protist ; 157(1): 13-19, 2006. ilus
Artigo em Inglês | BVS DIP, FIOCRUZ | ID: dip-1974
Little is known regarding the ultrastructure of the genus Fallisia (Apicomplexa Haemosporina Garniidae). This report describes the fine structure of some developmental stages of Fallisia audaciosa that infect neutrophils in the peripheral blood of the Amazonian lizard Plica umbra (Reptilia Iguanidae). The parasites lie within a parasitophorous vacuole and exhibit the basic structures of members of the Apicomplexa, such as the pellicle and the cytostome. Invaginations of the inner membrane complex were seen in the gametocytes and may be concerned with nutrition. The meronts were irregularly shaped before division, a feature unusual among members of the Apicomplexa. The unusual presence of a parasitic protozoan within neutrophils, in some way interfering with or modulating the microbicidal activity of such cells, is discussed...(AU)
Biblioteca responsável: BR275.1
Localização: BR275.1; PCIEC2006