Recent advances in the bio-remediation of persistent organic pollutants and its effect on environment

Gaur, Nisha; Narasimhulu, Korrapati; Pydisetty, Y.

doi:10.1016/j.jclepro.2018.07.076

Cited by 318 publications

(89 citation statements)

References 153 publications

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“…4 (detailed data in Table EMS2 ). The assumption we made was based on the knowledge that many microorganisms which could degrade DDT show higher degradation capability under neutral and alkaline pH (Wang et al 2010 ; Pan et al 2016 ), even though also the composition of the soil microbiome could impact on the degradation capacity of DDT both directly (Regar et al 2019 ; Gaur et al 2018 ) or indirectly, e.g., through the action of earthworms (Xu et al 2019 ). However, the Pearson correlation coefficient ( R = −0.26, p = 0.043) indicated a weak negative correlation between DDT concentration and pH (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Humic acids can increase the apparent solubility of DDT (Carter and Suffet 1982 ), but amending the soil with high quantities of organic matter was found to significantly retard DDT biodegradation, possibly due to binding of DDT to dissolved organic carbon (Kantachote et al 2004 ). Further research on the complex interactions between soil physical–chemical properties, its microbiome, including the microbial functional degradation potential, and the crops’ physiological contribution to the soil environment in relation to the possibilities to degrade DDT is thus needed to understand the behaviour of DDT residues (Sun et al 2015 ), particularly under climate change conditions (Gaur et al 2018 ). However, even though seasonal variation in DDT concentrations has been reported in soils (Zhang et al 2013 ), in agreement with the finding of differential release of residues into atmosphere (Motelay-Massei et al 2005 ; Liu et al 2009 ), sampling consistently at the end of summer during our monitoring exercise should have also reduced the risk of a bias in the results due to seasonal variability.…”

Section: Resultsmentioning

confidence: 99%

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Monitoring of DDT in Agricultural Soils under Organic Farming in Poland and the Risk of Crop Contamination

Malusà

Tartanus

Danelski

et al. 2020

Environmental Management

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The analysis of 142 agricultural soil samples collected in organic farms across Poland with the intent to evaluate the level of DDT contamination resulted in more than 80% of the soils containing DDT. The ΣDDT (sum of all metabolites and isomers) concentration ranged between 0.005 and 0.383 mg/kg ΣDDT, with an average value of 0.064 mg/kg ΣDDT. However, the majority of plant samples collected from the crops growing on the sampled soils did not contain detectable DDT residues. The high DDT pollution levels detected in samples from four voivodeships (regions) among those monitored have been hypothesised to be linked to horticultural productions occurring to the sampled fields and typical of those regions, particularly in big-sized farms, during the period of DDT application, as well as the number of pesticides landfills present in these voivodeships. The elaboration of the o,p′-DDT/p,p′-DDT and DDT/(DDE + DDD) ratios to appraise the source or the period of contamination suggested that the contamination originated from past use of DDT rather than from impurities of more recent applications of other formulated substances. Such outcome thus suggests that the risk of contamination of organic products is likely derived from general environmental pollution levels rather than from the use of unauthorised substances in organic farming productions. Data from a trial with artificial contamination of soils indicated that using the DDT/(DDE + DDD) ratio in the presence of a low level of contamination could be less reliable than in highly contaminated soils.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Monitoring of DDT in Agricultural Soils under Organic Farming in Poland and the Risk of Crop Contamination

Malusà

Tartanus

Danelski

et al. 2020

Environmental Management

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“…Microbial degradation or mineralization depends on the metabolic potential of microorganisms to detoxify or transform these pollutants. Several enzyme-catalyzed metabolic reactions in the biodegradation process include the addition of oxygen to double bonds, dehalogenation, ring cleavage, and the addition of hydroxyl groups to the benzene ring (17)(18)(19). Some functional genes have been identified and linked to the initial metabolic process of PAH and PCB degradation, including PAH ring-hydroxylating dioxygenase (PAH-RHD) (20) and biphenyl dioxygenase (bphA) genes (11).…”

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confidence: 99%

Stable-Isotope Probing-Enabled Cultivation of the Indigenous Bacterium Ralstonia sp. Strain M1, Capable of Degrading Phenanthrene and Biphenyl in Industrial Wastewater

Luo

Zhang

et al. 2019

Appl Environ Microbiol

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To identify and obtain the indigenous degraders metabolizing phenanthrene (PHE) and biphenyl (BP) from the complex microbial community within industrial wastewater, DNA-based stable-isotope probing (DNA-SIP) and cultivation-based methods were applied in the present study. DNA-SIP results showed that two bacterial taxa (Vogesella and Alicyclobacillus) were considered the key biodegraders responsible for PHE biodegradation only, whereas Bacillus and Cupriavidus were involved in BP degradation. Vogesella and Alicyclobacillus have not been linked with PHE degradation previously. Additionally, DNA-SIP helped reveal the taxonomic identity of Ralstonia-like degraders involved in both PHE and BP degradation. To target the separation of functional Ralstonia-like degraders from the wastewater, we modified the traditional cultivation medium and culture conditions. Finally, an indigenous PHE- and BP-degrading strain, Ralstonia pickettii M1, was isolated via a cultivation-dependent method, and its role in PHE and BP degradation was confirmed by enrichment of the 16S rRNA gene and distinctive dioxygenase genes in the DNA-SIP experiment. Our study has successfully established a program for the application of DNA-SIP in the isolation of the active functional degraders from an environment. It also deepens our insight into the diversity of indigenous PHE- and BP-degrading communities. IMPORTANCE The comprehensive treatment of wastewater in industrial parks suffers from the presence of multiple persistent organic pollutants (POPs), such as polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs), which reduce the activity of activated sludge and are difficult to eliminate. Characterizing and applying active bacterial degraders metabolizing multiple POPs therefore helps to reveal the mechanisms of synergistic metabolism and to improve wastewater treatment efficiency in industrial parks. To date, SIP studies have successfully investigated the biodegradation of PAHs or PCBs in real-world habitats. DNA-SIP facilitates the isolation of target microorganisms that pose environmental concerns. Here, an indigenous phenanthrene (PHE)- and biphenyl (BP)-degrading strain in wastewater, Ralstonia pickettii M1, was isolated via a cultivation-dependent method, and its role in PHE and BP degradation was confirmed by DNA-SIP. Our study provides a routine protocol for the application of DNA-SIP in the isolation of the active functional degraders from an environment.

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“…It is an excellent environmental friendly option for degrading the pollutants (Muangchinda et al, 2018). With the advancement of scientific research methodologies, the gene editing and systemic biology tools are being applied in bioremediation of heavy metal, POPs (persistent organic pollutants), petroleum, acid drainage, xenobiotics (Basu et al, 2018; Dai et al, 2018; Gaur et al, 2018; Malla et al, 2018; Boudh and Singh, 2019). Bioremediation is the involvement of chemical components tends to degrade and tangled microbial metabolic web at the contaminated scenario (Nikolopoulou and Kalogerakis, 2018).…”

Section: Introductionmentioning

confidence: 99%

Gene Editing and Systems Biology Tools for Pesticide Bioremediation: A Review

2019

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Bioremediation is the degradation potential of microorganisms to dissimilate the complex chemical compounds from the surrounding environment. The genetics and biochemistry of biodegradation processes in datasets opened the way of systems biology. Systemic biology aid the study of interacting parts involved in the system. The significant keys of system biology are biodegradation network, computational biology, and omics approaches. Biodegradation network consists of all the databases and datasets which aid in assisting the degradation and deterioration potential of microorganisms for bioremediation processes. This review deciphers the bio-degradation network, i.e., the databases and datasets (UM-BBD, PAN, PTID, etc.) aiding in assisting the degradation and deterioration potential of microorganisms for bioremediation processes, computational biology and multi omics approaches like metagenomics, genomics, transcriptomics, proteomics, and metabolomics for the efficient functional gene mining and their validation for bioremediation experiments. Besides, the present review also describes the gene editing tools like CRISPR Cas, TALEN, and ZFNs which can possibly make design microbe with functional gene of interest for degradation of particular recalcitrant for improved bioremediation.

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Recent advances in the bio-remediation of persistent organic pollutants and its effect on environment

Cited by 318 publications

References 153 publications

Monitoring of DDT in Agricultural Soils under Organic Farming in Poland and the Risk of Crop Contamination

Monitoring of DDT in Agricultural Soils under Organic Farming in Poland and the Risk of Crop Contamination

Stable-Isotope Probing-Enabled Cultivation of the Indigenous Bacterium Ralstonia sp. Strain M1, Capable of Degrading Phenanthrene and Biphenyl in Industrial Wastewater

Gene Editing and Systems Biology Tools for Pesticide Bioremediation: A Review

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