The Construction and Monitoring of Genetically Tagged, Plasmid-Containing, Naphthalene-Degrading Strains in Soil

Филонов, А. Е.; Ахметов, Л. И.; Пунтус, И. Ф.; Есикова, Т. З.; Гафаров, А. Б.; Izmalkova, T. Yu.; Sokolov, S. L.; Кошелева, И. А.; Boronin, A. M.

doi:10.1007/s11021-005-0088-6

Cited by 29 publications

(7 citation statements)

References 19 publications

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“…Inoculation with this consortium of plant-associated bacteria equipped with the appropriate characteristics resulted in an improved phytoremediation of a toluene contaminated site: the degradation of toluene was improved leading to decreased toxicity and evapotranspiration for willows. Filonov et al [301] constructed a Pseudomonas putida strain (KT 2442), with naphtalene-degrading genes carried by pNF142 plasmid. Twelve days after the bioaugmentation of a naphtalene-contaminated soil, the naphthalene concentration decreased from 2 to 0.2 mg/g of soil and pNF142 plasmid has been transferred to indigenous bacteria.…”

Section: Discussionmentioning

confidence: 99%

Root Exudation: The Ecological Driver of Hydrocarbon Rhizoremediation

2016

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Rhizoremediation is a bioremediation technique whereby microbial degradation of organic contaminants occurs in the rhizosphere. It is considered to be an effective and affordable "green technology" for remediating soils contaminated with petroleum hydrocarbons. Root exudation of a wide variety of compounds (organic, amino and fatty acids, carbohydrates, vitamins, nucleotides, phenolic compounds, polysaccharides and proteins) provide better nutrient uptake for the rhizosphere microbiome. It is thought to be one of the predominant drivers of microbial communities in the rhizosphere and is therefore a potential key factor behind enhanced hydrocarbon biodegradation. Many of the genes responsible for bacterial adaptation in contaminated soil and the plant rhizosphere are carried by conjugative plasmids and transferred among bacteria. Because root exudates can stimulate gene transfer, conjugation in the rhizosphere is higher than in bulk soil. A better understanding of these phenomena could thus inform the development of techniques to manipulate the rhizosphere microbiome in ways that improve hydrocarbon bioremediation.

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Section: Discussionmentioning

confidence: 99%

Root Exudation: The Ecological Driver of Hydrocarbon Rhizoremediation

2016

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“…The genetic engineered Pseudomonas fluorescens HK44 was the first strain used for long-term bioremediation of naphthalene contaminated soil. The other genetically modified strain P. putida KT2442 (pNF142::TnMod-OTc) able to degrade naphthalene in soil was constructed by (Filonov et al,2005). Enhanced Accumulation of Cd 2+ by a Mesorhizobium sp.…”

Section: Genetically Modified Microorganism In Bioremediationmentioning

confidence: 99%

A review of advances in bioremediation of heavy metals by microbes and plants

Kushwaha¹,

Kashyap²

2021

Journal of Natural Resource Conservation and Management

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Environmental pollution of heavy metals, either from anthropogenic sources or natural disasters, adversely affects the natural ecosystems. Accumulation of heavy metals include nickel (Ni), cobalt (Co) and chromium (Cr) in agricultural soils, irrigation waters, and drinking water. It has become a serious threat to the worldwide food security as well as human and animal health. Although some conventional methods are being used but most of them are neither cost-effective nor up to mark in efficiency. Recently, there has been increased interest in the use of microbes associated with legume plants for bioremediation of heavy metals. These microorganisms have developed various strategies for their survival in heavy metal-polluted habitats, and are known to develop and adopt different detoxifying mechanisms such as biosorption, bioaccumulation, biotransformation and biomineralization. Along with the microorganisms, plant based remediation strategy, phytoremediation, has also proved itself to be an important strategy for the removal of the heavy metal from the environment where living part can be considered as a solar-driven pump, which can extract toxic elements from the contaminated soil. This review discusses the heavy metal toxicity issues, metalmicrobes interactions, and mechanisms used by plants for remediation of these pollutants. Additionally, emphasis has been on a newer approach of fusion of traditional microbiology, biochemistry, ecology and genetic engineering as a promising and sustainable solution for removal of heavy metals from the environment.

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“…[83][84][85] This study enables in understanding and revealing the gene pool of the microbiota associated with the particular habitat. 86,87 In the present times, people have adopted bioremediation and biostimulation as efficient disposal and remediation strategies without having the knowledge about the degradation pathways going on in the process of remediating and eliminating polymers from the environment. This is mostly due to our inability in isolating majority of earth's microorganisms and cultivating them in appropriate media though there is huge advancement in the microbial techniques.…”

Section: Roles Of Environmental Genomics On Bioremediationmentioning

confidence: 99%

Bioaugmentation and biostimulation: a potential strategy for environmental remediation

Tribedi

Goswami

Chakraborty

et al. 2018

JMEN

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As the world is heading towards rapid urbanization and technological advancements, more undesirable and unwanted activities by human is raising major environmental issues like global warming, imbalance in soil ecological processes leading to lower agricultural yield, drastic climate change, etc. Predominantly, among all, xenobiotic recalcitrant compounds are indiscriminately being disposed in the environment causing significant hazard owing to its high stability and complexity. However, there are several methods for disposing such materials but the most efficient and significant disposal strategy is said to be bioremediation. This biological approach of remediation can be executed through introduction of efficient microbial strains (bioaugmentation) or by addition of rate limiting nutrients to the soil (biostimulation) to enhance the remediation process significantly. Existing literatures provide a broad landscape of the efficiency of some of the microbial strains and a few of the rate limiting nutrients in remediation of the toxic, highly complex and resistant contaminants but lacks information regarding their degree of efficiency and eco-friendliness in comparison with those of other disposal strategies. This review extensively focuses on a comparative discussion on different strategies of bioremediation to remediate the environment from the toxic, hazardous waste with the goal of building a less-toxic, stable and a healthy environment.

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The Construction and Monitoring of Genetically Tagged, Plasmid-Containing, Naphthalene-Degrading Strains in Soil

Cited by 29 publications

References 19 publications

Root Exudation: The Ecological Driver of Hydrocarbon Rhizoremediation

Root Exudation: The Ecological Driver of Hydrocarbon Rhizoremediation

A review of advances in bioremediation of heavy metals by microbes and plants

Bioaugmentation and biostimulation: a potential strategy for environmental remediation

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