Assessment of cadmium tolerance and biosorptive potential of Bacillus Cereus GCFSD01 isolated from cadmium contaminated soil

Continuous occurrence of heavy metals is a major cause of environmental pollution due to its toxic effects. At minimum concentrations, these metals are highly reactive and can gather in the food chains and food web, causing major dangers to public health concerns. Soil samples were collected from Pa...

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Bibliographic Details
Published in:Brazilian journal of biology 2021-03, Vol.81 (2), p.398-405
Main Authors: Muzammil, S, Siddique, M H, Mureed, F, Andleeb, R, Jabeen, F, Waseem, M, Zafar, S, Rehman, H F, Ali, T, Ashraf, A
Format: Article
Language:English
Subjects:
Bacillus
Bacillus cereus
Bacillus cereus - genetics
Bacteria
Biodegradation
Biodegradation, Environmental
BIOLOGY
biosorption
Cadmium
Cadmium - toxicity
Decontamination
Deoxyribonucleic acid
DNA
Effluents
Evaluation
Food chains
Food webs
Growth conditions
Heavy metals
industrial hub
Metal concentrations
metal contaminated soil
Metals, Heavy - analysis
Microorganisms
Minimum inhibitory concentration
pH effects
Pollution
Pollution effects
Pollution tolerance
Public health
Reduction (metal working)
RNA, Ribosomal, 16S - genetics
rRNA 16S
Sediment pollution
Soil
Soil contamination
Soil Microbiology
Soil Pollutants - toxicity
Soil pollution
Soils
textile effluents
Toxicity
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Summary:Continuous occurrence of heavy metals is a major cause of environmental pollution due to its toxic effects. At minimum concentrations, these metals are highly reactive and can gather in the food chains and food web, causing major dangers to public health concerns. Soil samples were collected from Paharang drain, Faisalabad. Cadmium tolerant bacteria were isolated and evaluated for their MIC against Cd. The isolated bacterial strain GCFSD01 showed MIC value upto 30 mM/L. The bacterial strain with the highest resistance against Cd was selected for further study. Molecular characterization of bacterial isolate GCFSD01 was performed by 16S rRNA which confirmed it as Bacillus cereus. Optimum growth conditions of bacterial strain were also evaluated. Strain GCFSD01 showed optimum growth at pH 7 and 37 °C temperature. Our result revealed that B. cereus strain GCFSD01 reduced 61.3% Cd after 48 hrs. Multiple metal tolerance and Cd reduction by B. cereus indicate its potential for further use for decontamination of polluted soil.
ISSN:1519-6984
1678-4375
1678-4375
DOI:10.1590/1519-6984.227200