Table 1.

Different types of microbes used in the bioremediation of various environmental contaminants.

Microorganism	Types of pollutant degraded	Significant outcomes	References
Brevibacterium epidermidis EZ-K02	Industrial wastes	Brevibacterium epidermidis, a bacterium that is capable of degrading waste waters contaminated with large scale dissolution of chemical compounds and nitrocellulose particles	Ziganshina et al., 2018
Bacillus sp. CDB3 Lysinibacillus sphaericus	Arsenic	Bacillus sp. CDB3, Lysinibacillus sphaericus Shows high resistance to arsenic contamination and aids in treating arsenic poisoning.	Rahman et al., 2016 Yang and Zhang, 2017
Mycobacterium dioxanotrophicus	Heterocyclic organic compounds (Dioxane)	Mycobacterium dioxanotrophicus is capable of remediating various heterocyclic organic compound contaminated environments by making the use of 1, 4-dioxane as a single source of energy and carbon and energy	He et al., 2017
Hyphomicrobium sp. Strain GJ21	Dichloromethane	Hyphomicrobium degrades halogenated contaminants by making the use of dichloromethane as a source of both energy and carbon	Bringel et al., 2017
Microbacterium oleivorans Strain A9	Radionuclides	Microbacterium oleivorans strain A9, a radionuclide-resistant actinobacterium capable of degrading uranium	Ortet et al., 2017
Plantibacter flavus Strain 251	Hydrocarbon-contaminated environments	Plantibacter flavus isolate 251 is known to possess novel biodegradation enzymes. The bacterium is anticipated to provide some of the novel insights into exploiting the hydrocarbon degrading pathways	Lumactud et al., 2017
Bacillus subtilis SR1	Polyaromatic hydrocarbon	Bacillus subtilis SR1 is a bacterium besides showing resistance to heavy-metals is also capable of degrading polyaromatic hydrocarbons	Kotoky et al., 2017
Alkaliphilus metalliredigens Strain QYMF,	Heavy metals	A metal-reducing bacterium capable of thriving in alkaline environments, a feature that is not commonly found in metal respiring microbes	Hwang et al., 2016
Pseudomonas veronii Strain 1YdBTEX2	Aromatic solvents viz., Benzene, toluene, ethyl benzene, Xylene (BTEX)	Pseudomonas veronii bacterium contains genes that carry out the degradation of aromatic solvents via a catabolic pathway	Junca and Pieper, 2004 Morales et al., 2016 Moreno-Forero et al., 2016
Pseudomonas plecoglossicida TND35	Nicotine	Pseudomonas plecoglossicida TND35 besides being an effective nicotine-degrading bacterium also has genes responsible for the degradation of heavy metals, aromatic compounds, and biosynthesis of butanol	Raman et al., 2015
Microbacterium spp.,	Heavy metals	Microbacterium spp plays an important role in phytoextraction and mobilization of heavy metals	Corretto et al., 2015
Arthrobacter sp. Strain SPG23	Hydrocarbon degradation	Arthrobacter is a hydrocarbonoclastic Gram-positive bacterium and is a potent bacterium for used for the remediation of the diesels fuels	Gkorezis et al., 2015
Raoultella ornithinolytica-TNT	Trinitrotoluene	Raoultella ornithinolytica-TNT is a Gram-negative bacterium. Strains of TNT make use of nitrate released from trinitrotoluene thereby making it less toxic. Hence is considered as a potent microbe in terms of bioremediation applications.	Thijs et al., 2014
Pseudomonas taeanensis	Hydrocarbons (Petroleum compounds)	Pseudomonas taeanensis a bacterium that is able to degrade petroleum compounds like diesel, kerosene and gasoline	Lee et al., 2014
Caulobacter sp. Strain OR37	Heavy metals	Possesses tolerance to elevated concentrations of heavy metals viz., cadmium, cobalt, uranium, nickel	Utturkar et al., 2013
Ochrobactrum pseudogrignonense	Arsenic pollutants	Ochrobactrum pseudogrignonense, a highly potent and efficient arsenate-resistant bacterium. The bacterium is involved in the degradation of the arsenic from arsenate-contaminated soils	Yang et al., 2013
Arthrobacter sp. Strain SJCon	2-Chloro-4-Nitrophenol	Arthrobacter sp. strains are useful in drafting the genetic pathways that are involved in the bioremediation of the aromatic compounds	Vikram et al., 2013
Brachybacterium sp. Cytophaga sp. Sphingomonas sp. Pseudomonas sp.	Oil spills	The bacteria are capable of remediating the oil-contaminated sites via, the processes of biostimulation and bioaugmentation	Angelim et al., 2013
Pseudomonas aeruginosa	Organic and Inorganic mercury	Pseudomonas aeruginosa bacterium is one of the potent agent that carries out the bioremediation of both organic and inorganic mercury in highly contaminated mercury sites	Dash and Das, 2012
Moraxella saccharolytica Alteromonas Putrefaciens Klebsiella pneumonia Pseudomonas fragi	Diesel hydrocarbon	Moraxella saccharolytica, Alteromonas Putrefaciens, Klebsiella pneumonia, Pseudomonas fragi, a complete bacterial consortium is proved to be one of the better and reliable choices for the rapid and complete remediation of the diesel hydrocarbon contaminated environments	Sharma and Rehman, 2009
Sphingomonadaceae/Sphingomonas	Degrades Hexachlorocyclohexae	Sphingomonads offer biostimulation of HCH polluted sites via addition of nutrients and aeration.	Dadhwal et al., 2009
Pseudomonas putida strains P. putida G7 P.aeruginosa PaK1 P.putida BS202 P. sp. strain U2 Rhodococcus sp. NCIMB12038 Pseudomonas putida OUS82 Alcaligenes faecalis AKF2 Nocardiodes sp. KP7	Degradation of PAHs Naphthalene and Phenanthrene	Isolation of the bacterial strains such as Pseudomonas putida, P. putida G7, P.aeruginosa PaK1, P. putida BS202, P. sp. strain U2, Rhodococcus sp. NCIMB12038 and Pseudomonas putida OUS82, Alcaligenes faecalis AKF2, Nocardiodes sp. KP7via the development of the modern genetic technologies provided a major breakthrough in the PAH remediation. The bacteria are capable of degrading substrates like phenanthrene, Pyrene and benzo-pyrene, fluoranthene, Naphthalene	Chauhan et al., 2008
Mycobacterium sp. PYR-1	Degradation of PAHs Pyrene	The strains of the Mycobacterium sp. although not producing the biosurfactants possess a strong ability to degrade even the low concentrations of aqueous-phase anthracene	Chauhan et al., 2008
Neisseria elongate Acinetobacter faecalis Staphylococcus. sp.	Crude petroleum oil	Neisseria elongate, Acinetobacter faecalis, Staphylococcus. sp., are the potent bacterial isolates and carry upto 93, 94, and 95% of hydrocarbon degradation, respectively	Mukred et al., 2008