Strategies in microbial degradation enhancement of chlorpyrifos – a review based on the primary approaches in soil bioremediation

Varghese, Edna Mary; Aswani, P; Jisha, M. S.

doi:10.1080/10242422.2021.1939693

Cited by 9 publications

(3 citation statements)

References 91 publications

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“…Explicitly, isolates S36 and S37 showed the highest sequence similarity with P. megaterium and P. arybhattia respectively. In correspondence, a number of studies have showed that, bacterial strains in the genus Pristia are versatile in degrading pesticides including atrazine (Abd Rani et al 2022), chlorpyrifos (Varghese et al 2022) and benzoate (Esikova et al 2021) using diverse metabolic pathways in mineralizing toxins and pesticides (Li et al 2022). Moreover, Pailan et al (2015) reported that B. arybhattia Fig.…”

Section: Discussionmentioning

confidence: 99%

Degradation kinetics and physiological studies of organophosphates degrading microorganisms for soil bioremediation

Kilonzi,

Otieno

2024

Stress Biology

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Organophosphate compounds are widely used in agricultural activities to optimize food production. Contamination of field soil by these compounds may result in detrimental effects on soil biota. The aim of the present study was to isolate microorganisms from field soils and evaluate the strains on ability to degrade organophosphates as single isolate and as a consortium. Isolated strains were identified using both biochemical and molecular techniques. Results revealed that, out of the 46 isolated strains, three isolates herein referred to as S6, S36 and S37 showed an average diazinon degradation rate of 76.4%, 76.7% and 76.8% respectively, of the initial dose (50 ppm) within 11 days of incubation in mineral medium. Notably, isolates S36 and S37 were more effective than S6 in degrading diazinon by 40% in soil aliquot after 11 days and therefore were evaluated on biochemical reactions and molecular identification. The isolates showed variable biochemical characteristics. However, both isolates possessed catalase enzyme, but lacked oxidase enzyme. Molecular characterization showed that, the closest species for S36 and S37 were Priestia megaterium and P. arybattia, respectively, based on 16S rRNA gene similarity (> 99%). Combination of the strains increased diazinon degradation ability by 45% compared to single strain treatment. Chlorpyrifos was the most highly degraded organophosphate, compared to phorate and cadusafos. Therefore it is expected that the pesticide-degrading bacteria could be a solution to soil health improvement and contribution to the production of safe agricultural products.

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Section: Discussionmentioning

confidence: 99%

Degradation kinetics and physiological studies of organophosphates degrading microorganisms for soil bioremediation

Kilonzi,

Otieno

2024

Stress Biology

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“…Los valores de clorpirifos encontrados en la investigación superaron el estándar canadiense en todos los periodos de evaluación, esta situación representa un riesgo por la persistencia de clorpirifos en el suelo. Estos riesgos estarían relacionados al deterioro de incocuidad de los alimentos cosechados en suelos contaminados con residuos de clorpirifos (Varghese et al,2022).…”

Section: Residualidad De Clorpirifos En El Suelounclassified

Efectos del Vermicompost sobre la Residualidad y Disipación de Clorpirifos y la Fertilidad en un Entisol de Clima Semiárido

Tito-Nova,

Choqueneira-Ccasa,

Sarmiento-Sarmiento

et al. 2024

Terra Latinoam

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El uso excesivo de clorpirifos afecta la calidad de los suelos agrícolas provocando efectos negativos en la inocuidad de los alimentos cosechados. El comportamiento de los residuos de clorpirifos depende de las propiedades edáficas especialmente la materia orgánica. El objetivo de la investigación fue determinar el efecto de la aplicación de vermicompost en la residualidad y disipación de clorpirifos en un suelo entisol de clima semiárido con variaciones en su fertilidad edáfica. Se estudiaron cuatro tratamientos. T1: 7.5% vermicompost (V) y 92.5% suelo (S); T2: 5% V y 95% S; T3: 2.5% V y 97.5% S; T4: 0% V y 100% S. Los tratamientos fueron sometidos a un periodo de incubación de siete días. Posteriormente, se aplicó una dosis de clorpirifos de 1.5 mg kg-1 como ingrediente activo en una sola oportunidad por cada tratamiento. Se utilizó un diseño completamente al azar con tres repeticiones por cada tratamiento conformando 12 unidades experimentales. La determinación analítica de clorpirifos se efectuó por cromatografía líquida de alta resolución (HPLC). Las evaluaciones se realizaron a 1,7, 14, 28, 42, 70 y 98 días de la aplicación de clorpirifos. Los resultados demostraron que la incorporación de vermicompost al suelo en niveles crecientes promovió la disminución de la concentración residual de clorpirifos y facilitó su disipación de manera gradual. Las curvas de disipación de clorpirifos corresponden a una ecuación logarítmica de primer orden donde los efectos de los tratamientos ocasionaron mayor disipación de clorpirifos conforme transcurrió el periodo de evaluación. A 98 días de evaluación el T1 registró menor residualidad (0.786 m kg-1), mayor tasa de disipación diaria (0.008) y menor vida media de clorpirifos (86.64 días). Al final del periodo de investigación, los niveles edáficos de P, K, CE y CIC se incrementaron mientras que la MO, N y pH descendieron luego de la aplicación de vermicompost.

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“…Karami-Mohajeri et al reported that every year more than three million poisoning cases by OPPs and approximately 200,000 mortalities are recorded [ 37 ]. Consequently, on the basis of epidemiological data, they were recently included on the list of banned substances in the European Union [ 38 , 39 ] due to their proven toxicity [ 40 ].…”

Section: Introductionmentioning

confidence: 99%

Occurrence, Distribution, and Risk Assessment of Organophosphorus Pesticides in the Aquatic Environment of the Sele River Estuary, Southern Italy

Montuori

Rosa

Duca

et al. 2022

Toxics

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The intensive use of organophosphorus pesticides (OPPs) causes concern among authorities in different countries, as many of them, remaining unchanged for a long time, pose a threat to environmental sustainability. This study assessed the spatio-temporal trends of nine OPPs in the water dissolved phase (WDP), suspended particulate matter (SPM), and sediment samples from the Sele River estuary, Southern Italy. Samples were collected in 10 sampling sites during four seasons. The highest levels were found at the mouth (mean value 28.25 ng L−1 as WDP + SPM) and then decreased moving southwards to the Mediterranean Sea. Moreover, highest concentrations were detected in the warm season (July) with a mean value of 27.52 ng L−1. The load contribution to the Mediterranean Sea was evaluated in about 61.5 kg year−1, showing that the river was an important source of OPPs through discharge into the sea. The risk assessment revealed that no high-risk indices for the general-case scenario were observed, but for the worst-case scenario, potential risks were associated with chlorpyrifos, pyrimifos-methyl, and parathion, suggesting that OPP contamination should not be neglected. This study makes up the first record of OPPs in the surface waters of the Sele River and provides helpful data as a starting point for future studies.

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Strategies in microbial degradation enhancement of chlorpyrifos – a review based on the primary approaches in soil bioremediation

Cited by 9 publications

References 91 publications

Degradation kinetics and physiological studies of organophosphates degrading microorganisms for soil bioremediation

Degradation kinetics and physiological studies of organophosphates degrading microorganisms for soil bioremediation

Efectos del Vermicompost sobre la Residualidad y Disipación de Clorpirifos y la Fertilidad en un Entisol de Clima Semiárido

Occurrence, Distribution, and Risk Assessment of Organophosphorus Pesticides in the Aquatic Environment of the Sele River Estuary, Southern Italy

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