Biodegradation kinetics of dicofol by selected microorganisms

Osman, Khansa; Ibrahim, G.; Askar, A.; Alkhail, Abdul Rahman A. Aba

doi:10.1016/j.pestbp.2008.03.012

Cited by 30 publications

(11 citation statements)

References 24 publications

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“…Previous studies by Osman et al (2008) have suggested that 26-33% of dicofol was degraded after 3 days of incubation with the tested PGPR. The percentages of residual amount of bromoxynil from media enriched with seven isolates of PGPR ranged from 30 to 72% after incubation for 72 h (Askar et al 2007).…”

Section: Resultsmentioning

confidence: 75%

“…To the best of our knowledge, limited data are available on in vitro biodegradation of soil-applied pesticides by PGPR strains and their effects on bacterial growth (Osman et al 2008). On the other hand, several works have focused on the effect of pesticides on the indigenous soil microbial community (Saeki and Toyota 2004;Bending et al 2007;Wang et al 2008) but little is known regarding the effect of soil-applied pesticides on the introduced PGPR populations.…”

Section: Introductionmentioning

confidence: 99%

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Biodegradation of soil-applied pesticides by selected strains of plant growth-promoting rhizobacteria (PGPR) and their effects on bacterial growth

Myresiotis

Vryzas

Papadopoulou‐Mourkidou

2011

Biodegradation

129

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A laboratory study was conducted to investigate the influence of four PGPR strains on the degradation of five soil applied pesticides and their effects on bacterial growth. Interactions of Bacillus subtilis GB03, Bacillus subtilis FZB24, Bacillus amyloliquefaciens IN937a and Bacillus pumilus SE34 with two concentrations of acibenzolar-S-methyl, metribuzin, napropamide, propamocarb hydrochloride and thiamethoxam in liquid culture and soil microcosm were studied. The degradation of acibenzolar-S-methyl by all PGPR tested in low and high concentration, was 5.4 and 5.7 times, respectively, faster than that in non-inoculated liquid culture medium. At the end of the 72-h liquid cultured experiments, 8-18, 9-11, 15-36 and 11-22% of metribuzin, napropamide, propamocarb hydrochloride and thiamethoxam, respectively, had disappeared from PGPR inoculated medium. Under the soil microcosm experimental conditions, the half-lives of acibenzolar-S-methyl incubated in the presence of PGPR strains spiked at 1.0 and 10.0 mg kg(-1) were 10.3-16.4 and 9.2-15.9 days, respectively, markedly lower compared with >34.2 days in the control. From the rest pesticides studied degradation of propamocarb hydrochloride and thiamethoxam was enhanced in the presence of B. amyloliquefaciens IN937a and B. pumilus SE34. Acibenzolar-S-methyl, propamocarb hydrochloride and thiamethoxam significantly increased the PGPR growth. However, the stimulatory effect was related to the level of pesticide spiked.

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Section: Resultsmentioning

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Biodegradation of soil-applied pesticides by selected strains of plant growth-promoting rhizobacteria (PGPR) and their effects on bacterial growth

Myresiotis

Vryzas

Papadopoulou‐Mourkidou

2011

Biodegradation

129

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“…Lastly, Osman et al [138] studied the biotransformation of dicofol pesticide (DCF) (59) by Trichoderma viride and T. harzianum with no intermediate or final degradation metabolites isolated. Fenitrothion breakdown product 3-methyl-4-nitrophenol (MNP), a newly characterized estrogenic chemist, was biotransformed by Aspergillus niger VKM F-1119 to 2-methyl-1,4-benzenediol, 4-amino-3-methylphenol, and two singly hydroxylated products [139].…”

Section: Insecticidesmentioning

confidence: 99%

Pollutants Biodegradation by Fungi

Pinedo-Rivilla

Aleu²,

Collado

2009

COC

124

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Abstract:One of the major problems facing the industrialized world today is the contamination of soils, ground water, sediments, surfacewater and air with hazardous and toxic chemicals. The application of microorganisms which degrade or transform hazardous organic contaminants to less toxic compounds has become increasingly popular in recent years. This review, with approximately 300 references covering the period [2005][2006][2007][2008], describes the use of fungi as a method of bioremediation to clean up environmental pollutants.

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“…Biodegradation is regarded as an effective approach to remove dicofol (Osman et al, 2008;Zhao et al, 2010;Zhang et al, 2011). Catalysis with enzymes is one of the biodegradation pathways (Du et al, 2013;Pradub and Wattanachai, 2012).…”

Section: Introductionmentioning

confidence: 99%