Removal of cadmium by heavy metal–resistant bacteria isolated from Hussain Sagar Lake—Hyderabad

2021 ◽  
Author(s):  
Khansa Rahman ◽  
Unnikrishna Menon ◽  
Sivasubramanian V ◽  
Ranjitha J
Keyword(s):  
Heavy Metal ◽  
Resistant Bacteria ◽  
Heavy Metal Resistant

scholarly journals Association of Antibiotic and Heavy Metal Resistant Bacteria Screened from Wastewater

2018 ◽  
Vol 7 (1) ◽  
pp. 28-40
Author(s):  
Bikram Gautam ◽  
Rameshwar Adhikari
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Antibiotic Resistance ◽  
Treatment Plant ◽  
Resistance Pattern ◽  
Resistant Bacteria ◽  
Grab Sampling ◽  
Antibiotic Resistance Pattern ◽  
Antibiotic Susceptibility Test ◽  
Heavy Metal Resistant

Wastewater treatment plant is a potential reservoir contributing to the evolution and spread of heavy metal and antibiotic resistant bacteria. The pollutants such as biocides, antibiotics, heavy metals are to be feared for as they have been known to evoke resistance in microorganisms in such polluted environment. The aim of this study was to the isolate bacteria from the treated wastewater and assess the resistance pattern of the isolates against antibiotics and heavy metals. Grab sampling was performed from April to June 2017, from the treated effluent from the secondary treatment plant. To assess the resistance pattern for antibiotic(s) and heavy metal(s), antibiotic susceptibility test and minimum inhibitory concentration by cup well method were performed respectively. Staphylococcus aureus, Enterococcus faecalis, Citrobacter freundii, Escherichia coli, Enterobacter aerogenes, Proteus mirabilis, P. vulgaris, Salmonella Typhi, Pseudomonas aeruginosa were isolated. Multi drug and heavy metal resistant isolates were screened. Fisher’s exact test revealed that there is a significant association (p< 0.001) between antibiotic resistance pattern and resistance patterns at dilution of 2500 g/L (25%). Cramer’s V test revealed that the effect size of antibiotic resistance pattern and heavy metal resistance pattern at dilution 2500 g/L is medium. P. aeruginosa was able to resist the metal concentration up to 10000 g/L (100%) dilution of Fe++. Heavy metal resistant bacteria can be safely used to lower chemical concentration in the environment once their harmful genes are edited, knocked etc. so that risks of evoking antibiotic resistance could be minimized. 

scholarly journals Antibiotic and Heavy Metal Resistant Bacteria Isolated from Aegean Sea Water and Sediment in Güllük Bay, Turkey : Quantifying the resistance of identified bacteria species with potential for environmental remediation applications

2020 ◽  
Vol 64 (4) ◽  
pp. 507-525 ◽  
Author(s):  
Gülşen Altuğ ◽  
Mine Çardak ◽  
Pelin Saliha Çiftçi Türetken ◽  
Samet Kalkan ◽  
Sevan Gürün
Keyword(s):  
Heavy Metal ◽  
Aegean Sea ◽  
Heavy Metal Resistance ◽  
Metal Resistance ◽  
Diffusion Method ◽  
Resistant Bacteria ◽  
Antibiotic Resistant Bacteria ◽  
Antibiotic Resistant ◽  
Heavy Metal Resistant ◽  
Seawater Samples

Heavy metal and antibiotic-resistant bacteria have potential for environmental bioremediation applications. Resistant bacteria were investigated in sediment and seawater samples taken from the Aegean Sea, Turkey, between 2011 and 2013. Bioindicator bacteria in seawater samples were tested using the membrane filtration technique. The spread plate technique and VITEK® 2 Compact 30 micro identification system were used for heterotrophic aerobic bacteria in the samples. The minimum inhibition concentration method was used for heavy metal-resistant bacteria. Antibiotic-resistant bacteria were tested using the disk diffusion method. All bacteria isolated from sediment samples showed 100% resistance to rifampicin, sulfonamide, tetracycline and ampicillin. 98% of isolates were resistant against nitrofurantoin and oxytetracycline. Higher antibiotic and heavy metal resistance was recorded in bacteria isolated from sediment than seawater samples. The highest levels of bacterial metal resistance were recorded against copper (58.3%), zinc (33.8%), lead (32.1%), chromium (31%) and iron (25.2%). The results show that antibiotic and heavy metal resistance in bacteria from sediment and seawater can be observed as responses to environmental influences including pollution in marine areas.

scholarly journals Heavy metal (As, Cd, Cr, Hg, Pb) analysis and identification of heavy metal resistant bacteria in sediments from Manado Bay

2021 ◽  
Vol 926 (1) ◽  
pp. 012096
Author(s):  
B J Kepel ◽  
W Bodhi ◽  
Fatimawali ◽  
T E Tallei
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Average Concentration ◽  
Resistant Bacteria ◽  
Icp Oes ◽  
Sediment Samples ◽  
Heavy Metal Concentrations ◽  
The World ◽  
Heavy Metal Resistant ◽  
16Srrna Gene

Abstract Environmental pollution from heavy metals is becoming a growing concern due to the adverse effects it is causing throughout the world. This study aims to analyze heavy metal concentrations and identify heavy metal resistant bacteria in the bay of Manado. Sediment samples were collected from five bays in Manado. The concentrations of heavy metals As, Cd, Cr, Hg and Pb were analyzed using ICP-OES, and Hg using CV-AFS. Bacteria from the sediment were grown in nutrient broth media containing heavy metals As, Cd, Cr, Hg and Pb respectively. Microbiology and 16SrRNA gene analysis were used to identify the bacteria that grown on media containing varying concentrations of heavy metals. The results showed that the sediments from the five bays in Manado contained heavy metals with an average concentration of As <1mg/kg, Cd 1.8mg/kg), Cr 6.2mg/kg, Hg <0.07mg/kg). and Pb 11.2mg/kg. The results of microbiological and molecular analysis showed that 5 species of heavy metal resistant bacteria were Pseudomonas aeruginosa, Bacillus cereus, Staphylococcus arlettae, Acinobacter sp., and Brevibacterium sp. The five bacteria found to be resistant to heavy metals can be used to detoxify As, Cd, Cr, Hg, and Pb.

Evaluation of biochar amendment on heavy metal resistant bacteria abundance in biosolids compost

2020 ◽  
Vol 306 ◽  
pp. 123114 ◽  
Author(s):  
Sanjeev Kumar Awasthi ◽  
Tao Liu ◽  
Mukesh Kumar Awasthi ◽  
Zengqiang Zhang
Keyword(s):  
Heavy Metal ◽  
Resistant Bacteria ◽  
Heavy Metal Resistant ◽  
Biosolids Compost ◽  
Biochar Amendment

Distinction between Cr and other heavy–metal–resistant bacteria involved in C/N cycling in contaminated soils of copper producing sites

2021 ◽  
Vol 402 ◽  
pp. 123454
Author(s):  
Juan Zhang ◽  
Quan Shi ◽  
Shukai Fan ◽  
Yafei Zhang ◽  
Minghua Zhang ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Contaminated Soils ◽  
N Cycling ◽  
Resistant Bacteria ◽  
Heavy Metal Resistant

S105 Improvement of Heavy Metal Resistant Bacteria on Phytoremediation of Reclaimed Land using Coal Gangue

2015 ◽  
pp. S105-S113 ◽  
Author(s):  
YAN YU ◽  
YUXIU ZHANG ◽  
QIAN ZHANG ◽  
XIAOQING ZHANG ◽  
XIAOJUN MENG ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Coal Gangue ◽  
Resistant Bacteria ◽  
Reclaimed Land ◽  
Heavy Metal Resistant ◽  
Land Using

Plant Growth Promotion Potential of Heavy Metal Resistant Bacteria From The Sewage Contaminated Coovum River, Chennai, India

2014 ◽  
Vol 11 (SE) ◽  
pp. 149-158
Author(s):  
M. Jayaprakashvel ◽  
N. Imran Sheriff ◽  
M. Venkatramani ◽  
S. Vinothini ◽  
A. Jaffar Hussain
Keyword(s):  
Heavy Metal ◽  
Plant Growth ◽  
Plant Growth Promotion ◽  
Growth Promotion ◽  
Resistant Bacteria ◽  
Heavy Metal Resistant
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