Biodegradation of chlorpyrifos and its hydrolysis product 3,5,6-trichloro-2-pyridinol by Bacillus pumilus strain C2A1

Anwar, Samina; Liaquat, Fauzia; Khan, Qaiser M.; Khalid, Zafar M.; Iqbal, Samina

doi:10.1016/j.jhazmat.2009.02.059

Cited by 349 publications

(201 citation statements)

References 32 publications

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“…However, experiments with constructed wetlands have shown good adaptation of the microbial community to these compounds, since it increases with increasing concentration of the pesticide (Anwar et al, 2009;Karpuzcu et al, 2013). It was found by Agudelo et al (2011) that the microorganisms continue to grow after application of the insecticide and possibly use it as a carbon source along with TCP, which accelerates the removal of both.…”

Section: Resultsmentioning

confidence: 99%

Removal of chlorpyrifos insecticide in constructed wetlands with different plant species

Souza

Borges

Matos

et al. 2017

Rev. bras. eng. agríc. ambient.

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A B S T R A C TThe objective of this study was to evaluate the remediation of water containing the insecticide chlorpyrifos by using constructed wetlands (CW) cultivated with Polygonum punctatum, Cynodon spp. and Mentha aquatica, operated under different hydraulic retention times: 24, 48, 96, 144 and 192 h. The system efficiency was based on reduction of the initial concentration of chlorpyrifos and toxicity of the contaminated water. The results showed that constructed wetlands are an excellent alternative for remediation of the insecticide chlorpyrifos in aqueous medium. It was observed that the average overall removal efficiency of the insecticide was 98.6%, and in the first hydraulic retention time, 24 h, chlorpyrifos was removed to levels below the detection limit in all CW. This result is mainly attributed to adsorption and microbial degradation. For the qualitative standard acute toxicity tests with Daphnia similis, for most samples there was a reduction in toxicity greater than 80%. It was reported that the ecotoxicological tests with the effluents of the constructed wetland are a good option as an indicator of the effectiveness of treatments and a promising alternative to complement the physical and chemical analyses.Remoção do inseticida clorpirifós em sistemas alagados construídos cultivados com diferentes espécies vegetais R E S U M O Objetivou-se neste trabalho avaliar a remediação de água contendo o inseticida clorpirifós, por meio de sistemas alagados construídos (SAC) cultivados com as espécies Polygonum punctatum, Cynodon spp. e Mentha aquatica operados sob diferentes tempos de retenção hidráulica: 24, 48, 96, 144 e 192 h. A eficiência do sistema foi baseada na redução da concentração inicial do clorpirifós e toxicidade da água contaminada. Os resultados mostraram que os sistemas alagados construídos são uma excelente alternativa na biorremediação do inseticida clorpirifós no meio aquoso. Observou-se média geral de eficiência na remoção do inseticida de 98,6%, sendo que no primeiro tempo de retenção hidráulica, 24 h, houve remoção do clorpirifós para valores inferiores ao limite detecção para todos os SAC. Tal resultado é atribuído principalmente aos processos de adsorção e degradação microbiana. Para os ensaios padronizados qualitativos de toxicidade aguda com Daphnia similis, para a maioria das amostras observou-se a redução de toxicidade acima de 80%. Constatou-se que os testes ecotoxicológicos com os efluentes dos sistemas alagados construídos estudados são uma boa opção como indicativo da eficiência dos tratamentos e uma promissora alternativa na complementação de análises físicas e químicas.

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Section: Resultsmentioning

confidence: 99%

Removal of chlorpyrifos insecticide in constructed wetlands with different plant species

Souza

Borges

Matos

et al. 2017

Rev. bras. eng. agríc. ambient.

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“…The half-life of chlorpyrifos is usually 60 to 120 days in soil, but it can range from 2 weeks to over 1 year depending on the illumination intensity, soil type, temperature and other factors (Anwar et al, 2009). Long-term usage of chlorpyrifos has caused agricultural non-point source pollution, and increased risk to the quality of aquatic environments (van Dijk and Guicherit, 1999;Spalding et al, 2003;Leu et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Structural and metabolic responses of microbial community to sewage-borne chlorpyrifos in constructed wetlands

Zhang

Wang

Zhang

et al. 2016

Journal of Environmental Sciences

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Long-term use of chlorpyrifos poses a potential threat to the environment that cannot be ignored, yet little is known about the succession of substrate microbial communities in constructed wetlands (CWs) under chlorpyrifos stress. Six pilot-scale CW systems receiving artificial wastewater containing 1 mg/L chlorpyrifos were established to investigate the effects of chlorpyrifos and wetland vegetation on the microbial metabolism pattern of carbon sources and community structure, using BIOLOG and denaturing gradient gel electrophoresis (DGGE) approaches. Based on our samples, BIOLOG showed that Shannon diversity (H V ) and richness (S) values distinctly increased after 30 days when chlorpyrifos was added. At the same time, differences between the vegetated and the non-vegetated systems disappeared. DGGE profiles indicated that H Vand S had no significant differences among four different treatments. The effect of chlorpyrifos on the microbial community was mainly reflected at the physiological level. Principal component analysis (PCA) of both BIOLOG and DGGE showed that added chlorpyrifos made a difference on test results.Meanwhile, there was no difference between the vegetation and no-vegetation treatments after addition of chlorpyrifos at the physiological level. Moreover, the vegetation had no significant effect on the microbial community at the genetic level. Comparisons were made between bacteria in this experiment and other known chlorpyrifos-degrading bacteria. The potential chlorpyrifos-degrading ability of bacteria in situ may be considerable.

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“…With the restricted use of most of the organochlorinated (OC) insecticides, including dichloro-diphenyl-trichloroethane (DDT) and hexachlorcyclohexan (HCH), due to their long persistence in the environment organophosphorus (OP) insecticides have accounted for the majority of insecticides consumption (Sardar and Kole, 2005). Although OP insecticides degrade faster than OC insecticides, this class of pesticides has acute neurotoxicity which is due to their ability to suppress acetylcholine esterase (AChE) (Anwar et al, 2009). OP poisoning is a worldwide health problem, with approximately three million poisonings and 200,000 deaths annually.…”

mentioning

confidence: 99%

“…The half-life of CP in soil is usually between 60 and 120 days, but it can range from 2 weeks to over 1 year, depending on both chemical hydrolysis and microbial activity. In most cases, aerobic bacteria tend to hydrolyze CP to produce diethylthiphosphoric acid (DEPT) and 3,5,6-trichloro-2-pyridinol (TCP) (Anwar et al, 2009;Cho et al, 2009).…”

mentioning

confidence: 99%

“…The CP or OP insecticides degrading bacteria was isolated previously (Sethunathan and Yoshida, 1973;Shelton, 1988;Rani and Lalitha-Kumari, 1994;Singh et al, 2004;Yang et al, 2005Yang et al, , 2006Zhang et al, 2005Zhang et al, , 2006Li et al, 2007;Xu et al, 2008;Anwar et al, 2009;Cho et al, 2009;Wang et al, 2012) but this is the first report of OP insecticides degradation by Naxibacter species. In addition, the several researchers has identified the various genes (opd) and enzymes (OP hydrolase) involved in degradation of OP insecticides (Fu et al, 2004;Liu et al, 2005;Zhang et al, 2006;Li et al, 2007;Yang et al, 2008;Islam et al, 2010).…”

mentioning

confidence: 99%

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Biodegradation of Chlorpyrifos (CP) by a Newly Isolated Naxibacter sp. Strain CY6 and Its Ability to Degrade CP in Soil

Kim¹,

Choi²,

Jang³

et al. 2013

The Korean Journal of Microbiology

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A bacterium, isolated from a vegetable field in a plastic film house and named strain CY6 was capable of biodegrading chlorpyrifos (CP). Based on the phenotypic features and the phylogenetic similarity of 16S rRNA gene sequences, strain CY6 was identified as a Naxibacter sp.. CP was utilized as the sole source of carbon and phosphorus by Naxibacter sp. CY6. We examined the role of this Naxibacter sp. in the degradation of other OP insecticides under liquid cultures. Parathion, methyl parathion, diazinon, cadusafos, and ethoprop could also be degraded by Naxibacter sp. CY6 when they are provided as the sole sources of carbon and phosphorus. Additionally, Naxibacter sp. CY6 (10 8 CFU/g) added to soil with CP (100 mg/kg) resulted in a higher degradation rate of approximately 90% than the rate obtained from uninoculated soils. These results highlight the potential of this bacterium to be used in the cleanup of contaminated pesticide soil.

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Biodegradation of chlorpyrifos and its hydrolysis product 3,5,6-trichloro-2-pyridinol by Bacillus pumilus strain C2A1

Cited by 349 publications

References 32 publications

Removal of chlorpyrifos insecticide in constructed wetlands with different plant species

Removal of chlorpyrifos insecticide in constructed wetlands with different plant species

Structural and metabolic responses of microbial community to sewage-borne chlorpyrifos in constructed wetlands

Biodegradation of Chlorpyrifos (CP) by a Newly Isolated Naxibacter sp. Strain CY6 and Its Ability to Degrade CP in Soil

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