|
Isolation of cadmium resistant bacteria for Environmental clean-up
|
|
| Author:
|
MISS CHAUHAN, DR. MANU SOLANKI
|
| Abstract:
|
Abstract
Heavy metal pollution is an environmental concern which can produce harmful effects on human health when they are taken up in amounts that cannot be processed by the organism. Therefore, it is necessary to find methods which are eco-friendly and do not produce secondary pollution. In the present study, twenty cadmium resistant bacteria were isolated from contaminated soil from industrial area of Faridabad, Haryana, India. Twelve isolates were selected and purified as single colonies. Screening of the bacterial isolates for metal resistance against Cd2+, Ni2+, Hg2+ and Pb2+ was done by determining the minimal inhibitory concentration ranging from 10µg/ml to 250µg/ml. Heavy metal tolerance test showed maximum microbial tolerance to cadmium and minimum tolerance to lead.
Moreover these isolates showed a significant ability to remove 24 to 76 % of cadmium within 2 days. So, the ability of these microbes to tolerate higher concentration of heavy metal provides a scope of use these bacterial strains for bioremediation of heavy metal from contaminated soil. The present study focuses on 12 bacterial strains that are highly resistant to different heavy metals and investigates their resistance and ability to detoxify cadmium.
|
| Keyword:
|
Keywords: heavy metals, bioremediation, bacteria, soil sample
|
| EOI:
|
-
|
| DOI:
|
-
|
| Download:
|
Request For Article
|
|
|