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Spores of Thelohania in Adult Female Anopheles : Development and Transovarial Transmission, and Redescriptions of T. legeri Hesse and T. obesa Kudo
Author(s) -
HAZARD E. I.,
WEISER J.
Publication year - 1968
Publication title -
the journal of protozoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 0022-3921
DOI - 10.1111/j.1550-7408.1968.tb02221.x
Subject(s) - transovarial transmission , biology , spore , zoology , larva , anopheles , ecology , botany , malaria , immunology
SYNOPSIS. Two distinctly different types of spores were found in Anopheles mosquitoes infected with Thelohania. One type, found in larvae, is commonly known to protozoologists and was used in the original descriptions of Thelohania legeri Hesse and T. obesa Kudo. The 2nd type, which is cylindrical and unlike any Thelohania spores previously described, is associated with the transovarial cycle of these Microsporida in the adult. Spores of the 2nd type, which were previously described as Microsporida of the genus Nosema , develop in the blood cells of females. Spores similar to but obviously of another species than the ones found in these Anopheles females were also found in Aedes cantans (Meigen) and Culex salinarius Coquillett females. These cylindrical spores were associated with Thelohania infections in the larvae of these mosquitoes. The cylindrical spores have distinct taxonomic characters which when used with the structural characters of stages in the larvae aid in the differentiation of the 2 species. Descriptions of these stages in the 2 Thelohania species are presented with a brief discussion of the transovarial development of the parasites in the female bost.