Biotechnological basis of microbial consortia for the removal of pesticides from the environment

Bhatt, Pankaj; Bhatt, Kalpana; Sharma, Anita; Zhang, Wenping; Mishra, Sandhya; Chen, Shaohua

doi:10.1080/07388551.2020.1853032

Cited by 113 publications

(30 citation statements)

References 159 publications

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“…Sophorolipids are another glycoconjugate biosurfactant utilized in oil spill management and the oil biodegradation of contaminated water [124]. Thus, microbial glycoconjugates are utilized in diverse forms for the treatment of wastewater, and the results obtained justify their candidacy for this purpose [97,177,178].…”

Section: Glycoconjugates In Wastewater Treatmentmentioning

confidence: 99%

Microbial glycoconjugates in organic pollutant bioremediation: recent advances and applications

et al. 2021

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The large-scale application of organic pollutants (OPs) has contaminated the air, soil, and water. Persistent OPs enter the food supply chain and create several hazardous effects on living systems. Thus, there is a need to manage the environmental levels of these toxicants. Microbial glycoconjugates pave the way for the enhanced degradation of these toxic pollutants from the environment. Microbial glycoconjugates increase the bioavailability of these OPs by reducing surface tension and creating a solvent interface. To date, very little emphasis has been given to the scope of glycoconjugates in the biodegradation of OPs. Glycoconjugates create a bridge between microbes and OPs, which helps to accelerate degradation through microbial metabolism. This review provides an in-depth overview of glycoconjugates, their role in biofilm formation, and their applications in the bioremediation of OP-contaminated environments.

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Section: Glycoconjugates In Wastewater Treatmentmentioning

confidence: 99%

Microbial glycoconjugates in organic pollutant bioremediation: recent advances and applications

et al. 2021

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“…However, intrinsic cell-specific factors like incomplete metabolic pathways and carbon catabolite repression still limit the bacterium’s degradation ability. To overcome these limitations, two major approaches, consortia based-degradation and metabolic engineering can be employed either alone or in combination to enhance the degradation efficiency of these compounds ( Bhatt et al, 2021a ) Moreover, the past decade has witnessed the integration of metabolic engineering approaches with system biology, aiding in overcoming potential pitfalls by employing databases, bioinformatics and computational tools for prediction of thermodynamic feasibility and compound toxicity, vector design, flux balance analysis, gene and protein structure analysis, amongst others. “Omics” techniques have aided in obtaining a broader perspective on the genomic, metabolic, proteomic and transcriptomic aspects of cellular metabolism and degradation, thereby aiding in rational pathway design ( Dvořák et al, 2017 ; Dangi et al, 2019 ; Jaiswal et al, 2019 ; Mishra et al, 2021a ).…”

Section: Strategies For Optimising the Bioremediation Of Carbamate Pesticides In The Environmentmentioning

confidence: 99%

“…Therefore, a single bacterium is often limited in its capacity to degrade diverse range of these pesticides at excessive or varying concentrations. As compared to single strain, mixed bacterial cultures (consortium) depict better degradation and survivability due to sharing of metabolic burden/division of labour, resilience to environmental fluctuations, resistance to invasion by other species and prevention of “metabolic cliff” ( Bhatt et al, 2021a ). A large number of naturally occurring, carbamate degrading bacterial consortia have been reported from diverse environments like river biofilms ( Chen et al, 2015 ), agriculture soil ( Sharif and Mollick, 2013 ), pesticide disposal sites ( Chapalamadugu and Chaudhry, 1991 ) and lake and salt marsh sediments ( Kazumi and Capone, 1995 ).…”

Section: Strategies For Optimising the Bioremediation Of Carbamate Pesticides In The Environmentmentioning

confidence: 99%

“…Apart from metabolic co-operation, biosurfactant and siderophore production by isolates might contribute to the interactions arising between different members of the consortia for effective clean-up ( D’Onofrio et al, 2010 ; Liang et al, 2018 ). Thus, the successful development of a synthetic consortia requires an understanding of microbial interactions, microbial communication (quorum sensing), dynamics of the community and behaviour of individual members ( Bhatt et al, 2021a ).…”

Section: Strategies For Optimising the Bioremediation Of Carbamate Pesticides In The Environmentmentioning

confidence: 99%

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Conserved Metabolic and Evolutionary Themes in Microbial Degradation of Carbamate Pesticides

2021

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Carbamate pesticides are widely used as insecticides, nematicides, acaricides, herbicides and fungicides in the agriculture, food and public health sector. However, only a minor fraction of the applied quantity reaches the target organisms. The majority of it persists in the environment, impacting the non-target biota, leading to ecological disturbance. The toxicity of these compounds to biota is mediated through cholinergic and non-cholinergic routes, thereby making their clean-up cardinal. Microbes, specifically bacteria, have adapted to the presence of these compounds by evolving degradation pathways and thus play a major role in their removal from the biosphere. Over the past few decades, various genetic, metabolic and biochemical analyses exploring carbamate degradation in bacteria have revealed certain conserved themes in metabolic pathways like the enzymatic hydrolysis of the carbamate ester or amide linkage, funnelling of aryl carbamates into respective dihydroxy aromatic intermediates, C1 metabolism and nitrogen assimilation. Further, genomic and functional analyses have provided insights on mechanisms like horizontal gene transfer and enzyme promiscuity, which drive the evolution of degradation phenotype. Compartmentalisation of metabolic pathway enzymes serves as an additional strategy that further aids in optimising the degradation efficiency. This review highlights and discusses the conclusions drawn from various analyses over the past few decades; and provides a comprehensive view of the environmental fate, toxicity, metabolic routes, related genes and enzymes as well as evolutionary mechanisms associated with the degradation of widely employed carbamate pesticides. Additionally, various strategies like application of consortia for efficient degradation, metabolic engineering and adaptive laboratory evolution, which aid in improvising remediation efficiency and overcoming the challenges associated with in situ bioremediation are discussed.

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“…It showed that atropine + PAM did not affect the metabolism of DDVP, which was consistent with a recent research [ 76 ]. Co-treatment does not alter the impact of PON1 on DDVP concentration, which implies that there is no interaction between PON1 and atropine + PAM-CI; therefore, it is supposed that co-treatment may be feasible in the clinical treatment of human organophosphate-related toxicity [ 77 , 78 , 79 ].…”

Section: Molecular Mechanism Of Ddvp Biodegradationmentioning

confidence: 99%

Emerging Technologies for Degradation of Dichlorvos: A Review

Zhang

et al. 2021

IJERPH

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Dichlorvos (O,O-dimethyl O-(2,2-dichlorovinyl)phosphate, DDVP) is a widely acknowledged broad-spectrum organophosphorus insecticide and acaracide. This pesticide has been used for more than four decades and is still in strong demand in many developing countries. Extensive application of DDVP in agriculture has caused severe hazardous impacts on living systems. The International Agency for Research on Cancer of the World Health Organization considered DDVP among the list of 2B carcinogens, which means a certain extent of cancer risk. Hence, removing DDVP from the environment has attracted worldwide attention. Many studies have tested the removal of DDVP using different kinds of physicochemical methods including gas phase surface discharge plasma, physical adsorption, hydrodynamic cavitation, and nanoparticles. Compared to physicochemical methods, microbial degradation is regarded as an environmentally friendly approach to solve several environmental issues caused by pesticides. Till now, several DDVP-degrading microbes have been isolated and reported, including but not limited to Cunninghamella, Fusarium, Talaromyces, Aspergillus, Penicillium, Ochrobium, Pseudomonas, Bacillus, and Trichoderma. Moreover, the possible degradation pathways of DDVP and the transformation of several metabolites have been fully explored. In addition, there are a few studies on DDVP-degrading enzymes and the corresponding genes in microorganisms. However, further research relevant to molecular biology and genetics are still needed to explore the bioremediation of DDVP. This review summarizes the latest development in DDVP degradation and provides reasonable and scientific advice for pesticide removal in contaminated environments.

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Biotechnological basis of microbial consortia for the removal of pesticides from the environment

Cited by 113 publications

References 159 publications

Microbial glycoconjugates in organic pollutant bioremediation: recent advances and applications

Microbial glycoconjugates in organic pollutant bioremediation: recent advances and applications

Conserved Metabolic and Evolutionary Themes in Microbial Degradation of Carbamate Pesticides

Emerging Technologies for Degradation of Dichlorvos: A Review

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