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A new genus of microsporidans Cristulospora gen. n. (Amblyospiridae) with 3 new species from blood-sucking mosquitoes in Uzbekistan


, : A new genus of microsporidans Cristulospora gen. n. (Amblyospiridae) with 3 new species from blood-sucking mosquitoes in Uzbekistan. Parazitologiia 23(2): 140-145

Three new species of microsporidans of the new genus Cristulospora are described from mosquitoes of the genera Culex and Aedes (floodlands of the Syr Darya, Syrdarya Province, Bukharskiĭ oasis). In mosquitoes microsporidans have sporogony of two types that is characteristic of the family Amblyosporidae. The development in larvae ends in the formation of 8 uninucleate spores in pansporoblasts. In females single binucleate spores are formed. The new genus differs from other amblyosporids in the presence of appendages in shape of magnificent plumes on both poles of octospores, which are distinct without staining. C. sherbani sp. n. from Culex modestus forms spores measuring 5.0-8.1 X 4.3-5.6 microns in larvae. During the fixation the poles become flattened, plumes are equal, most of them having wide bases. In genital ducts of females oval cylindrical thin-walled spores of 6.3-8.7 X 2.5-3.7 microns are formed. C. cadyrovi sp. n. from Culex pipiens forms spores of 5.6-6.8 X 3.7-5.0 microns in larvae. After the fixation the poles do not become flattened, plumes are equal, with narrow base. The second type of spores has not been discovered. C. aedis sp. n. from Aedes caspius has spores of 6.2-7.5 X 4.3-5.6 microns in larvae. Plumes with narrow base, the anterior and posterior ones are different in shape. In genital ducts of females thin-walled spores of 8.7-11.8 X 3.7-5.0 microns are formed.

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PMID: 2526316


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