2008
DOI: 10.1007/s00128-008-9514-6
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Effects of Repeated Applications of Chlorpyrifos on its Persistence and Soil Microbial Functional Diversity and Development of its Degradation Capability

Abstract: Effects of repeated applications of chlorpyrifos on its persistence and soil microbial functional diversity were studied under laboratory conditions. The results showed that the degradation rate of chlorpyrifos increased whereas its inhibitory effect on soil microbial communities gradually decreased with application frequency of chlorpyrifos. A bacterial strain DSP capable of utilizing chlorpyrifos as a sole source of carbon and energy was isolated 21 days after the third chlorpyrifos application, which indica… Show more

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Cited by 22 publications
(14 citation statements)
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“…In studies on microbial conversion of chlorpyrifos, the insecticide was shown to be hydrolysed producing metabolites including TCP. Enhanced degradation of chlorpyrifos was reported following repeated application of the parent compound (Fang et al, 2008;Robertson et al, 1998) or its metabolite (Yang et al, 2005). In the present study also TCP was detected as a metabolite in the degradation of chlorpyrifos.…”
Section: Persistence Of Chlorpyrifos In Sterile and Non Sterile Suspementioning
confidence: 50%
See 1 more Smart Citation
“…In studies on microbial conversion of chlorpyrifos, the insecticide was shown to be hydrolysed producing metabolites including TCP. Enhanced degradation of chlorpyrifos was reported following repeated application of the parent compound (Fang et al, 2008;Robertson et al, 1998) or its metabolite (Yang et al, 2005). In the present study also TCP was detected as a metabolite in the degradation of chlorpyrifos.…”
Section: Persistence Of Chlorpyrifos In Sterile and Non Sterile Suspementioning
confidence: 50%
“…It has been suggested that the accumulation of TCP, which has antimicrobial properties, prevents the proliferation of chlorpyrifos-degrading microorganisms in soil . However, only recently accelerated degradation of chlorpyrifos is being reported from soil previously treated with chlorpyrifos (Fang et al, 2008;Robertson et al, 1998), although results had also been reported that the half-life of chlorpyrifos was b Mean of three replicate observations. In a column, means followed by a common letter are not significantly different (P < 0.05) by Duncan's multiple range test.…”
Section: Enhanced Degradation Of Chlorpyrifos In Tropical Rice Soils mentioning
confidence: 94%
“…Both the compounds CPF and DZN were chemically stable throughout our experimental periods. CPF has been shown to be highly stable for weeks in many different environments [38]. That is also one of the reasons why Svendsen et al .…”
Section: Methodsmentioning
confidence: 99%
“…Among the currently used pesticides, chlorpyrifos (O, O‐diethyl O‐(3,5,6‐trichloro‐2‐pyridyl) is a broad‐spectrum organophosphate insecticide and acaricide which widely used in grain, cotton, fruit and vegetable crops. However, the continuous and excessive use of this pesticide has resulted in some problems to human health and environment caused by its low water solubility relatively high mammalian toxicity and soil‐absorption coefficient . The environmental fate of chlorpyrifos has been studied extensively and its degradation may involve a combination of photolysis, chemical hydrolysis and microbial degradation .…”
Section: Introductionmentioning
confidence: 99%