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Cryptosporidium wrairi sp. n. from the Guinea Pig Cavia porcellus , with an Emendation of the Genus
Author(s) -
VETTERLING JOHN M.,
JERVIS HELEN R.,
MERRILL THOMAS G.,
SPRINZ HELMUTH
Publication year - 1971
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.1550-7408.1971.tb03315.x
Subject(s) - cavia , biology , guinea pig , cryptosporidium , zoology , genus , transmission (telecommunications) , new guinea , character (mathematics) , virology , microbiology and biotechnology , feces , genetics , ethnology , history , geometry , electrical engineering , mathematics , engineering
SYNOPSIS.Cryptosporidium wrairi sp. n. is described from the laboratory guinea pig Cavia porcellus. The life cycle is given insofar as it is known. Two schizogonous generations are described; the 1st with 8 merozoites, the 2nd with 4 merozoites. The latter generation was previously referred to as the sporulated oocyst, but evidence is presented to show that it is a schizont. Micro‐ and macrogametogony are also described. No oocysts were found. Cross‐transmission to mice, chickens, turkeys and rabbits was unsuccessful. The generic character of oocysts with 4 naked sporozoites is discarded and the presence of endogenous stages in the striated border of epithelial cells is used as the emended generic character. A listing of valid and non‐valid species is given.