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Tritrichomonas muris in the Hamster: Pseudocysts and the Infection of Newborn
Author(s) -
MATTERN CARL F. T.,
DANIEL WENDELL A.
Publication year - 1980
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.1550-7408.1980.tb05392.x
Subject(s) - feces , biology , hamster , microbiology and biotechnology , incubation , flagellum , mesocricetus , bacteria , biochemistry , genetics
SYNOPSIS. Female golden hamsters, either in the last week of pregnancy or in the first weeks of nursing, excreted in their feces variable numbers of pseudocysts of Tritrichomonas muris . Pseudocysts examined by electron microscopy had internalization of the 3 anterior flagella and the undulating membrane with its recurrent flagellum. The undulating membrane and the associated marginal lamellae were characteristic of T. muris . Pseudocysts gradually become motile after 2 or more hours of incubation in medium. The “excysted” trophozoites were identified ultrastructurally as T. muris . Newborn hamsters were not infected with T. muris at 3 days of age, but by the 7th day essentially all were found to have infected ceca, concomitant with cecal enlargement and the appearance of adult‐type feces.