Vergleichende Beobachtungen Über Die Verwandtschaft Zwischen Trichomonas Foetus Und Trichomonas Foetus-Aenlichen Schweine-Trichomonaden

Fine structure and isozymic characterization of trichomonadid protozoa

“…Fig. 3, X 6,000 light microscopy (Hibler et al 1960) and biochemical and antigenic analysis (Robertson 1960;Stepkowski 1966) have suggested that they might be the same species. However, this is the first time that more discriminating methods such as isozymic and electron microscopy have been used.…”

Comparative genetic analysis of tritrichomonadid protozoa by the random amplified polymorphic DNA technique

“…The taxonomic classi®cation within the genus Tritrichomonas is a subject of controversy, and the hypothesis has been formulated that separation of the tritrichomonads from cattle and swine on the species level is not valid (Hibler et al 1960;Levine 1973;Honigberg 1978;Pakandl and Grubhofer 1994;Mattos et al 1997). This hypothesis was based on the absence of consistent dierences in the structure and cultivation of T. suis and T. foetus (Jensen and Hammond 1964;Mattos et al 1997), on similarities in their physiological characteristics (Doran 1957;Pakandl and Grubhofer 1994;Mattos et al 1997), and on their close antigenic relatedness (Robertson 1960;Stepkowski 1966;DeCarli and Guerrero 1975, 1976, 1977. In addition, cross-infection experiments argue against dierences in the host speci®city of T. foetus and T. suis (Switzer 1951;Fitzgerald et al 1955Fitzgerald et al , 1958Hammond and Leidl 1957;Kerr 1958).…”