Characterization of arsenic oxidation and uranium bioremediation potential of arsenic resistant bacteria isolated from uranium ore

Bhakat, Kiron; Chakraborty, Arindam; Islam, Ekramul

doi:10.1007/s11356-019-04827-6

Cited by 32 publications

(5 citation statements)

References 48 publications

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“…The microbial community belonging to genera Shinella, Microbacterium, Micrococcus, and Bacillus were reported for bioremediating heavy metal (cadmium, chromium, cobalt, nickel, and zinc) environmental pollutants [29]. In another report, Pseudomonas nitroreducens and Ochrobactrum sp.…”

Section: Biodiversity Of Bioremediating Microbesmentioning

confidence: 99%

Microbe-mediated bioremediation: Current research and future challenges

Kour¹,

Khan²,

Kour³

et al. 2022

J App Biol biotech

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The rise in environmental pollution over the past few decades due to rapid industrialization and unsafe agricultural practices has become a major challenge. The presence of toxic pollutants such as nuclear wastes, heavy metals, pesticides, and hydrocarbons has been languishing the environment as well as the human health. Bioremediation using microbial communities is emerging as an incredible, eco-friendly, and cost-effective approach to ameliorate the adverse effects of toxic pollutants. Microbes possess astonishing metabolic capabilities to alter most forms of organic material and can survive in extreme environmental conditions which make them attractive candidate for the bioremediation. Microbes are the treasure houses for environmental cleaning and recovering of contaminated soil and they have been reported from diverse environmental conditions including hot, cold, drought, and saline. Different groups of bioremediating microbes have reported from diverse conditions, that is, bacteria, fungi including yeast, and algae. Microbes belonging to genera Alcaligenes, Aspergillus, Bacillus, Flavobacterium, Ganoderma, Methosinus, Nocardia, Phormidium, Pseudomonas, Rhizopus, Rhodococcus, and Stereum have been reported as potential and efficient bioremediators for the degradation of different pollutants of the environment such as xenobiotics, heavy metals, hydrocarbons, and paper and pulp effluent. The present review focuses on microbial diversity in bioremediation, techniques applied in bioremediation, bioremediation of different environmental pollutants, and how bioremediation processes could be monitored.

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Section: Biodiversity Of Bioremediating Microbesmentioning

confidence: 99%

Microbe-mediated bioremediation: Current research and future challenges

Kour¹,

Khan²,

Kour³

et al. 2022

J App Biol biotech

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“…In comparison, KG1D showed a MIC value of 600 and 1800 µg mL −1 for As(III) and As(V), respectively. As-tolerant bacteria have been reported from various regions across the globe, such as polluted water from an Argentinian village well 18 , sediments from the Vietnam Sea coast 19 , metal-laden soil of Portugal 20 , spring water in an Iranian province 21 , uranium mines in India 22 , silver and gold mines of the Korean Republic 23 and Poland 24 . All this indicates that the presence of As-tolerant bacteria in nature is worldwide, and the tolerance determinants or different physiological mechanisms to cope with As stress might have evolved in the pre-historic era 25 .…”

Section: Isolation and Minimum Inhibitory Concentration (Mic) Determi...mentioning

confidence: 99%

Isolation, characterization, identification, genomics and analyses of bioaccumulation and biosorption potential of two arsenic-resistant bacteria obtained from natural environments

Roy,

Saha,

Adhikary

et al. 2024

Sci Rep

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Arsenic (As) is a significant contaminant whose unrestrained entrance into different ecosystems has created global concern. At the cellular level, As forms unsteady intermediates with genetic materials and perturbs different metabolic processes and proper folding of proteins. This study was the first in this region to explore, isolate, screen systematically, and intensively characterize potent As-tolerant bacterial strains from natural environments near Raiganj town of Uttar Dinajpur, West Bengal. In this study, two potent Gram-negative bacterial strains with high tolerance to the poisonous form of As, i.e., As(III) and As(V), were obtained. Both the isolates were identified using biochemical tests and 16S rRNA gene sequencing. These bacteria oxidized toxic As(III) into less poisonous As(V) and depicted tolerance towards other heavy metals. Comparative metabolic profiling of the isolates in control and As-exposed conditions through Fourier-transform infrared spectroscopy showed metabolic adjustments to cope with As toxicity. The metal removal efficiency of the isolates at different pH showed that one of the isolates, KG1D, could remove As efficiently irrespective of changes in the media pH. In contrast, the efficiency of metal removal by PF14 was largely pH-dependent. The cell mass of both the isolates was also found to favourably adsorb As(III). Whole genome sequence analysis of the isolates depicted the presence of the arsRBC genes of the arsenic operon conferring resistance to As. Owing to their As(III) oxidizing potential, high As bioaccumulation, and tolerance to other heavy metals, these bacteria could be used to bioremediate and reclaim As-contaminated sites.

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“…Numerous studies have recently shown the potential benefits of isolates derived from HMe-contaminated sites. Thus, bacterial communities belonging to the genera Shinella , Microbacterium , Micrococcus , and Bacillus have been shown to have bioremediation potential related to HMes (Cd, Cr, Co, Ni, Zn) [ 9 ]. The biosorption of Cu by Bacillus spp.…”

Section: Introductionmentioning

confidence: 99%

“…Third, HMe-tolerant bacteria can be cross-resistant toward organic pollutants; e.g., HMe-tolerant Bacillus cereus BCS1 degrades pyrethroid [ 5 ], and furthermore, HMe tolerance among bacterial species derived from hydrocarbon-contaminated sites has been detected [ 14 ]. Arsenic-resistant bacteria have been isolated from uranium ore [ 9 ]. In addition, some microorganisms are genetically resistant to HMes and can regulate metal bioavailability in the environment [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Impact of Anthropogenic Activities on Microbial Community Structure in Riverbed Sediments of East Kazakhstan

Muter,

Gudrā,

Daumova

et al. 2024

Microorganisms

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Heavy metal (HMe) pollution in regions with mining and metallurgy activities is known to be a serious environmental problem worldwide. Hydrological processes contribute to the dissemination of HMes (drainage, precipitation, flow rate). The aim of the present study is to investigate the microbial community structure in ten river sediments sampled in different regions of East Kazakhstan, which are contaminated with HMes. The overall degree of sediment contamination with HMes (Cr, Cu, Zn, Pb, and Cd) was assessed using the pollution index Zc, which ranged from 0.43 to 21.6, with the highest in Ridder City (Zc = 21.6) and Ust-Kamenogorsk City, 0.8 km below the dam of the hydroelectric power station (Zc = 19.6). The tested samples considerably differed in organic matter, total carbon, nitrogen, and phosphorus content, as well as in the abundance of HMe-related functional gene families and antibiotic resistance genes. Metagenomic analysis of benthic microorganisms showed the prevalence of Proteobacteria (88.84–97.61%) and Actinobacteria (1.21–5.98%) at the phylum level in all samples. At the class level, Actinobacteria (21.68–57.48%), Betaproteobacteria (19.38–41.17%), and Alphaproteobacteria (10.0–39.78%) were the most common among the classified reads. To the best of our knowledge, this is the first study on the metagenomic characteristics of benthic microbial communities exposed to chronic HMe pressure in different regions of East Kazakhstan.

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Characterization of arsenic oxidation and uranium bioremediation potential of arsenic resistant bacteria isolated from uranium ore

Cited by 32 publications

References 48 publications

Microbe-mediated bioremediation: Current research and future challenges

Microbe-mediated bioremediation: Current research and future challenges

Isolation, characterization, identification, genomics and analyses of bioaccumulation and biosorption potential of two arsenic-resistant bacteria obtained from natural environments

Impact of Anthropogenic Activities on Microbial Community Structure in Riverbed Sediments of East Kazakhstan

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