الفهرس 
AcknowledgmentOnly 14 pages are availabe for public view
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Abstract
Chloramphenicol-resistant (CMR) bacteria inhibits the action of chloramphencol (a bactericidal for most enteric group of bacteria) through the acetylation of the antibiotic by the action of chloramphenicol acetyl-transferase (CAT) enzyme. So the aim of the present work is to study the physiological factors that affect CAT production by the bacterium morganella morganii (CMR) and to study the factors affecting the purified enzyme.