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Research Journals >
Indian Journal of Experimental Biology (IJEB) >
IJEB Vol.50 [2012] >
IJEB Vol.50(04) [April 2012] >
| Title: | Cadmium tolerance and antibiotic resistance in Escherichia coli isolated from waste stabilization ponds |
| Authors: | Patra, Sova
Das, T K
Avila, C
Cabello, V
Castillo, F
Sarkar (Paria), D
Lahiri (Ganguly), Susmita
Jana, B B |
| Keywords: | Antibiotic Resistance
Cadmium Tolerance
Escherichia coli
Waste Stabilization Pond |
| Issue Date: | Apr-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The incidence pattern of cadmium tolerance
and antibiotics resistance by Escherichia coli was examined periodically
from the samples of water, sludge and intestine of fish raised in waste
stabilization ponds in a sewage treatment plant. Samples of water and sludge
were collected from all the selected ponds and were monitored for total counts
of fecal coliform (FC), total coliform
(TC) and the population of Escherichia
coli, which was also obtained from
the intestine of fishes. Total counts of both FC and TC as well as counts of E.
coli were markedly reduced from the facultative pond to the last maturation
pond. Tolerance limit to cadmium
by E. coli tended to decline as the distance of the sewage effluent from
the source increased; the effective lethal concentration of cadmium ranged from
0.1 mM in split chamber to 0.05 mM in first maturation pond. E.
coli isolated from water, sludge and fish gut were sensitive to
seven out of ten antibiotics tested. It appears that holistic functions
mediated through the mutualistic growth of micro algae and heterotrophic
bacteria in the waste stabilization ponds were responsible for the promotion of
water quality and significant reduction of coliform along the sewage effluent
gradient. |
| Page(s): | 300-307 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1009 (Online); 0019-5189 (Print) |
| Source: | IJEB Vol.50(04) [April 2012]
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