Document Type : Research Paper
Author
University of Baghdad - college of science.
Abstract
aeruginosa was cultured on nutrient agar containing different antibiotics,the growth and pigment of
bacterial colonies were treated. Azithromycin killed the bacteria on low concentration,colonies of P. aeruginosa
treated with Ampicillin,Amoxycillin,and Cefixime appeared light green .Cephalexin and Azithromycin led to
formation of light green-yellow colonies,while Doxycillin ,and Clindamycin appeared green ,but there was slight
change in colonies color.
The pigment(pyocyanin) was extracted from the untreated cells of bacteria and its effect as antibiotic used against
many different pathogenic bacteria have been studied,the pigment inhibited E. coli, Acinetobacter,Staphylococcus
auraus ,and Streptococcus pneumoniae but not Klebsiella pneumoniae ,and Proteus vulgaris
Keywords
Main Subjects
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