[An electron microscopic study on the ultrastructure and enzyme cytochemistry of Pseudomonas putrefaciens]

In this paper, PTA staining, ultrathin sectioning and electron microscopic enzyme cytochemistry techniques were used to study the ultrastructure, as well as reactivity and localization of catalase and peroxidase in Ps. putrefaciens. Its ultrastructure is similar to that of other gram-negative bacilli. Catalase is distributed in the cytoplasm, while peroxidase localized at cytoplasmic membrane and mesosomes.