OCCURRENCE OF CATALASE IN PLEUROPNEUMONIA-LIKE ORGANISMS AND BACTERIAL L FORMS

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Abstract
Weibull , C. (Central Bacteriological Laboratory of Stockholm City, Stockholm, Sweden) and Kerstin Hammarberg . Occurrence of catalase in pleuropneumonia-like organisms and bacterial L forms. J. Bacteriol. 84: 520–525. 1962.—The catalase activity of six pleuropneumonia-like organisms (PPLO), four stable Proteus L forms, and four normal strains of Proteus mirabilis was determined quantitatively. The PPLO (strains of the species Mycoplasma agalactiae, hominis, laidlawii, mycoides , and strains isolated from tissue cultures) exhibited no measurable catalase activity. The L forms decomposed H 2 O 2 approximately ten times as rapidly as the normal bacteria from which they were derived.