Assessment of antibiogram and resistogram of pathogenic bacteria isolated from irrigated wheat field water
Assessment of antibiogram and resistogram of pathogenic bacteria isolated from irrigated wheat field water
Assessment of antibiogram and resistogram of pathogenic bacteria isolated from irrigated wheat field water
Nazish Mazhar Ali1, Saiqa Andleeb2, Bushra Mazhar1, Anum Imtiaz1, Shaukat Ali2*
ABSTRACT
The present work concerned with the study of bacterial pathogens associated with irrigated wheat field water. Study was carried out to check the efficacy of heavy metals and antibiotics against five isolated bacterial pathogens. Different morphological and biochemical tests were performed to identify and characterize bacterial pathogens. Among isolated strains, two belong to genus Staphylococcus spp., other two were Pseudomonas spp. and one strain belonged to genus Salmonella spp. Effect of various parameters such as temperature and pH on growth of pathogens were also studied. Antibiogram and resistogram analysis were carried out through agar disc and agar well diffusion methods. Optimum temperature for growth of all bacterial strains was 37oC and pH 7 except Salmonella which had pH 6. Among all the antibiotics Oxacillin was less potent as three bacterial strains showed resistance against it while others antibiotics were more potent. Minimum inhibitory concentration of heavy metals for all bacterial isolates was different. It was concluded that irrigated pathogenic bacteria are highly resistant to heavy metals.
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