| the development of hepatozoon sipedon sp. nov. (apicomplexa: adeleina: hepatozoidae) in its natural host, the northern water snake (nerodia sipedon sipedon), in the culicine vectors culex pipiens and c. territans, and in an intermediate host, the northern leopard frog (rana pipiens). | the life cycle of hepatozoon sipedon sp. nov. was studied in two snake species, the northern water snake and the eastern garter snake, in its mosquito hosts culex pipiens and c. territans, and in the northern leopard frog. gametogenesis, fertilization and sporogony occurred within fat body cells in the haemocoel of mosquitoes that had fed on infected water snakes. mature oocysts averaging 263 microns in diameter and containing more than 500 sporocysts were observed in mosquitoes 28 days post-fee ... | 1994 | 7855120 |
| experimental transmission of hepatozoon clamatae (apicomplexa: adeleida) to the wood frog, rana sylvatica, and to the mosquito culex pipiens. | hepatozoon clamatae naturally infects the erythrocytes of green frogs (rana clamitans), bullfrogs (rana catesbeiana), and northern leopard frogs (rana pipiens) in northeastern north america and uses the mosquito culex territans as a definitive host. in this study, we show that the wood frog, rana sylvatica, supports merogonic development, but not gamogonic development, of this protozoan parasite, and that the mosquito culex pipiens serves as an experimental definitive host for sporogonic develop ... | 2010 | 19895159 |
| ultrastructural features of cystic and merogonic stages of hepatozoon sipedon (apicomplexa: adeleorina) in northern leopard frogs (rana pipiens) and northern water snakes (nerodia sipedon) from ontario, canada. | the cystic and merogonic stages of the haemogregarine hepatozoon sipedon, infecting northern water snakes (nerodia sipedon sipedon) and northern leopard frogs (rana pipiens), respectively, in ontario, canada, were investigated by transmission electron microscopy. cysts, which were observed in the liver of northern leopard frogs (rana pipiens) after these anurans ingested mosquitoes (culex pipiens) containing oocysts of the parasite, harboured two cystozoites, each of which contained a large crys ... | 1998 | 9703677 |