Recent Trends in Bioremediation

Juwarkar, Asha A.; Misra, Rashmi R.; Sharma, Jitendra Kumar

doi:10.1007/978-3-642-41837-2_5

Cited by 30 publications

(12 citation statements)

References 86 publications

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“…Various strategies have been devised to counteract the adverse effects of Cd 2+ to crops. These range from plant's bioaccumulation potential to application of rhizospheric microorganisms (Juwarkar et al, ). Various classes of bacteria have been assessed and applied for metal detoxification, complexation or bioaccumulation (Rajkumar et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…Previously, some reports explained how bacteria protect themselves against cadmium toxicity (Bruins et al, ; Siripornadulsil and Siripornadulsil, ; Juwarkar et al, ). The findings suggest that during metal interaction, bacteria tends to accumulate the intracellular metal ions to enhance the expressions of antioxidant proteins, cysteine‐rich protein, binding of Cd 2+ by other heavy metal‐associated proteins, and an increase in intracellular disulfide content that contributes to effective binding of Cd 2+ (Stafford et al, ; Bruins et al, , Prozialeck , Hall, ).…”

Section: Introductionmentioning

confidence: 99%

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Regulations of essential amino acids and proteomics of bacterial endophytes Sphingomonas sp. Lk11 during cadmium uptake

Khan

Ullah

Hussain

et al. 2014

Environmental Toxicology

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Endophytic bacteria have been recently known for their potential to bioaccumulate metal from contaminated mediums. However, little is known about the physiological responses of phytohormone producing (gibberellins and auxins) endophytes during metal stressed environment. Endophytic bacteria Sphingomonas sp. LK11 was assessed for metals bioaccumulation and its physiological responses towards metal stress. The endophyte was grown in cadmium (Cd), zinc (Zn), aluminum (Al), manganese (Mn), and copper (Cu) contaminated mediums. The results revealed significantly higher endophytic growth potentials in Cd, Cu and Zn contaminations; however, the bio-accumulation rate of Cd was more prolific as compared to Zn and Cu. Interestingly, the SDS-PAGE profile showed increased expressions of proteins in Zn and Cu than in Cd. A similar attenuate response of amino acids was also observed for Cd than in case of Zn and Cu. Only asparagine, glutamate and proline showed significant impact in Cd while Cu and Zn had significantly higher responses of almost all amino acids. Detailed protein profile showed the activation of chaperone, antioxidative and detoxification proteins. Increased regulations of oxidoreductases, superoxide dismutase, thioredoxin, malate dehydrogenase, 2-oxoisovalerate dehydrogenase, 2-oxoisovalerate dehydrogenase, and dihydrolipoyl dehydrogenase were observed. The cellular defense-related protein responses were potent against Cd stress. The results conclude that Sphingomonas sp. LK11 reprogram its amino acids and proteomic expressions and maintain a steady growth during Cd stress. Using such phytohromones producing endophytic bacterium can be ideal approach to increase the phytoextraction potential of metal remediating plants. © 2014 Wiley Periodicals, Inc. Environ Toxicol 31: 887-896, 2016.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Regulations of essential amino acids and proteomics of bacterial endophytes Sphingomonas sp. Lk11 during cadmium uptake

Khan

Ullah

Hussain

et al. 2014

Environmental Toxicology

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“…Therefore, development of cost-effective and environmentally sound technology becomes urgent need of the time. In this context, bioremediation has incredible potential to satisfy the requirement and holds faith for protection of environmental and its management (Juwarkar et al 2014). Bioremediation is an increasingly popular alternative to conventional methods for treating pollutants with the possibility to degrade contaminants, since it uses natural microbial activity mediated by different consortia of microbial strains.…”

Section: Remediation Measures For Pcbsmentioning

confidence: 99%

“…In situ techniques comprise of both bioremediation (including microbial and fungal) and phytoremediation techniques which when clubbed can emerge as an effective weapon for eradication or breakdown of organic contaminants like PCBs. Remediation using fungal strains in some cases proved as a highly effective remediation approach (Kuba´tova´ et al 2001; Juwarkar et al 2014). …”

Section: Remediation Measures For Pcbsmentioning

confidence: 99%

Advances and perspective in bioremediation of polychlorinated biphenyl-contaminated soils

Sharma

Gautam

Nanekar

et al. 2017

Environ Sci Pollut Res

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In recent years, microbial degradation and bioremediation approaches of polychlorinated biphenyls (PCBs) have been studied extensively considering their toxicity, carcinogenicity and persistency potential in the environment. In this direction, different catabolic enzymes have been identified and reported for biodegradation of different PCB congeners along with optimization of biological processes. A genome analysis of PCB-degrading bacteria has led in an improved understanding of their metabolic potential and adaptation to stressful conditions. However, many stones in this area are left unturned. For example, the role and diversity of uncultivable microbes in PCB degradation are still not fully understood. Improved knowledge and understanding on this front will open up new avenues for improved bioremediation technologies which will bring economic, environmental and societal benefits. This article highlights on recent advances in bioremediation of PCBs in soil. It is demonstrated that bioremediation is the most effective and innovative technology which includes biostimulation, bioaugmentation, phytoremediation and rhizoremediation and acts as a model solution for pollution abatement. More recently, transgenic plants and genetically modified microorganisms have proved to be revolutionary in the bioremediation of PCBs. Additionally, other important aspects such as pretreatment using chemical/physical agents for enhanced biodegradation are also addressed. Efforts have been made to identify challenges, research gaps and necessary approaches which in future, can be harnessed for successful use of bioremediation under field conditions. Emphases have been given on the quality/efficiency of bioremediation technology and its related cost which determines its ultimate acceptability.

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“…Bioremediation is a preferred means of soil remediation. It is an environmentally safe alternative to various physical, thermal, and chemical remediation technologies (Juwarkar, Misra, & Sharma, 2014). Furthermore, it is economical.…”

Section: Introductionmentioning

confidence: 99%

Pseudomonas sp. (Strain 10–1B): A potential inoculum candidate for green and sustainable remediation

Bello‐Akinosho

Adeleke

Thantsha

et al. 2017

Remediation Journal

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Soil pollution caused by polycyclic aromatic hydrocarbons (PAHs) is a consequence of various industrial processes which destabilizes the ecosystem. Bioremediation by bacteria is a cost‐effective and environmentally safe solution for reducing or eliminating pollutants in soils. In the present study, we artificially polluted agricultural soil with used automobile engine oil with a high PAH content and then isolated bacteria from the soil after 10 weeks. Pseudomonas sp. strain 10–1B was isolated from the bacterial community that endured this artificial pollution. We sequenced its genomic DNA on Illumina MiSeq sequencer and evaluated its ability to solubilize phosphate, fix atmospheric nitrogen, and produce indoleacetic acid, in vitro, to ascertain its potential for contribution to soil fertility. Its genome annotation predicted several dioxygenases, reductases, ferredoxin, and Rieske proteins important in the ring hydroxylation initiating PAH degradation. The strain was positive for the soil fertility attributes evaluated. Such combination of attributes is important for any potential bacterium partaking in sustainable bioremediation of PAH‐polluted soil.

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Recent Trends in Bioremediation

Cited by 30 publications

References 86 publications

Regulations of essential amino acids and proteomics of bacterial endophytes Sphingomonas sp. Lk11 during cadmium uptake

Regulations of essential amino acids and proteomics of bacterial endophytes Sphingomonas sp. Lk11 during cadmium uptake

Advances and perspective in bioremediation of polychlorinated biphenyl-contaminated soils

Pseudomonas sp. (Strain 10–1B): A potential inoculum candidate for green and sustainable remediation

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