On the Viability of Tritrichomonas augusta

The effects of environment on Tritrichomonas augusta (Alexeieff, 1911)

“…vaginalis. Rosenberg (1936) reported the effect of hydrogen-ion concentration on the viability of T. augusta. This worker discovered that as the acidity of the medium increased, the death rate of the organisms also increased and that the maximal growth was obtained at the pH value of 7.55.…”

The effects of environment on Tritrichomonas augusta (Alexeieff, 1911)

“…; whereas, good growth was obtained at room temperature. A few years later, Rosenberg (1936) cultivated T. augusta from a tree toad, Hyla regilla, in a mixture of the enteric rectal contents of the animal and an equal amount of 0.85 per cent sodium chloride, a medium first described by Kofoid and Swezy (1915b). Rosenberg (1936) also reported the effect of hydrogen-ion concentration on the viability of the organisms.…”

“…A few years later, Rosenberg (1936) cultivated T. augusta from a tree toad, Hyla regilla, in a mixture of the enteric rectal contents of the animal and an equal amount of 0.85 per cent sodium chloride, a medium first described by Kofoid and Swezy (1915b). Rosenberg (1936) also reported the effect of hydrogen-ion concentration on the viability of the organisms. According to this investigator, the change in the pH value toward the acidity caused the death of the organisms while the maximal growth was obtained with constant pH value of 7.55, the approximate pH value of the rectal con tent of the frog.…”

“…Wenrich (1935) and Cairns (1953) reported the ability of this species of protozoan to exist in a wide range of amphibian hosts and environments. Kofoid and Swezy (1915b) and Rosenberg (1936) investigated the relationship of one organism to another and stated that in a mixed culture of T. batrachorum and T. augusta, the latter gradually dis appeared while the T. batrachorum increased in numbers and eventually became the only species present. According to Wenrich (1947), T.…”

“…Rosenberg (1936) reported the effect of hydrogen-ion concentration on the viability of T. augusta. This worker discovered that as the acidity of the medium increased, the death rate of the organisms also increased and that the maximal growth was obtained at the pH value of 7.55.…”