Life cycle and description of Amblyospora camposi n.sp. (Microsporidia: Amblyosporidae) in the mosquito Culex renatoi (Diptera, culicidae) and the copepod Paracyclops fimbriatus fimbriatus (Copepoda, Cyclopidae)

摘要

The life cycle of Amblyospora camposi n. sp. is described from the mosquito Culex renatoi and the copepod Paracyclops fimbriatus fimbriatus collected in the leaf axils of the plant Eryngiurn cabrerae in Argentina. Meiospores of A. carnposi (5.8 X 4,1 #mu#m) were infectious per os to female adults of the copepod P. f. fimbriatus. All developmental stages in the copepod had unpaired nuclei, with sporulation involving the formation of a sub-persistent, sporontogenic, interfacial envelope and the production of a second type of uninucleate spore. These spores, formed in the ovaries of P. f..firnbriatus, were large, pyriform, and measured 10.70 X 3.85 #mu#m. When ingested they infected C. renatoi larvae to inmate a sequence that revolves schizogony and gametogony and ends with plasmogamy and nuclear association to form diplokaryotic meronts. Oblong ovate binucleate spores (7.86 X 2.96 gm) are formed in the adult mosquito and are responsible for vertical transmission to the filial generation. This is the first report of an Arnblyospora species from a mosquito that inhabits the small-water bodies held in parts of terresterial plants (phytotelmata).