EFFECT OF THALLIUM ACETATE ON THE GROWTH OF BACTERIA

Abstract

It is well known that the selective media for pleuropneumonia-like organisms and mycoplasma, i. e., PPLO agar and broth contain thallium acetate and penicillin in order to inhibit or suppress Gram-negative bacteria and Gram-positive bacteria, respectively. There are a lot of reports concerning inhibition of bacteria by penicillin, but a few works about the effect of thallium acetate on suppression of the growth of bacteria. This communication is to describe the effect of thallium acetate on the growth and morphological changes of bacteria which grow well on agar-agar medium.