Nature Environment and Pollution Technology

N. S. Kulkarni ¹, D. D. Walke ¹, R. R. Pachori ¹, Shiva Aithal ²

Affiliations
1 Department of Microbiology, R. A. College, Washim-444 505, Maharashtra, IN
2 Department of Microbiology, D. S. M. College, Parbhani-431 401, Maharashtra, IN

Abstract

Effect of different metal ions with their graded concentration on growth response of indicator organisms for faecal contamination and human pathogens of enteric fever was studied with individual and combined culture cultivation techniques. Both the test organisms were inhibited by almost all the metal ions analysed. However, it was surprisingly observed that the inhibitory effect by most of the metal ions was more significant against E. coli as compared to Salmonella species which indicated the possibility of confusion with respect to indicator organisms in monitoring the microbiological characteristics of water.

Keywords

Metal ions, Indicator organisms, Enteric Human pathogen, Inhibitory Effect.

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D. H. Tambekar ¹, N. B. Hirulkar ¹, D. D. Walke ¹

Affiliations
1 Post Graduate Department of Microbiology, S.G.B. Amravati University, Amravati-444 602, Maharashtra, IN

Abstract

Pseudomonas aeruginosa is a common organism found in water and its growth can cause problems with color, taste, odour and turbidity of the drinking water. In the present study, a total of 210 water samples were analysed and 40 strains of Pseudomonas aeruginosa were isolated and identified from various drinking water sources from different localities in Amravati city. Antimicrobial susceptibility tests were carried with 24 antibiotics, which showed 47% resistance, and 53% sensitive.The studies reported high incidence (30%) of Pseudomonas aeruginosa in drinking water showing danger to human health due to its biofilm producing ability and indicating emergence of antibiotic resistance due to the indiscriminate use of antibiotics.

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