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《Biodegradation of chlorpyrifos, malathion, and dimethoate by three strains of bacteria isolated from pesticide-polluted soils in Sudan 》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、Articlepubs.acs.org/JAFCBiodegradationofChlorpyrifos,Malathion,andDimethoatebyThreeStrainsofBacteriaIsolatedfromPesticide-PollutedSoilsinSudan,†††,⊥‡AbdElazizS.A.Ishag,*AzhariO.Abdelbagi,AhmedM.A.Hammad,ElsiddigA.E.Elsheikh,§⊗⊥OsamaE.Elsaid,J.-H.Hur,andMark
2、D.Laing†DepartmentofCropProtection,FacultyofAgriculture,UniversityofKhartoum,Shambat,Sudan‡DepartmentofSoilandEnvironment,FacultyofAgriculture,UniversityofKhartoum,Shambat,Sudan§FacultyofAgriculturalTechnologyandFishSciences,AlNeelainUniversity,Khartoum,Sud
3、an⊗DepartmentofBiologicalEnvironment,CollegeofAgricultureandLifeSciences,KangwonNationalUniversity,Chuncheon,Gangwon-do,RepublicofKorea⊥DisciplineofPlantPathology,SchoolofAgricultureEarthandEnvironmentalSciences,UniversityofKwazulu,Natal,SouthAfrica*SSuppor
4、tingInformationABSTRACT:Thisstudywasdonetoidentifypesticide-biodegradingmicroorganismsandtocharacterizedegradationrates.BacillussafensisstrainFO-36bT,Bacillussubtilissubsp.inaquosorumstrainKCTC13429T,andBacilluscereusstrainATCC14579Twereisolatedfrompesticid
5、e-pollutedsoilinSudan,separatelyincubatedwitheachpesticidewithperiodicsamplesdrawnforGCandGC-MS.Pesticidebiodegradationfollowedabiphasicmodel.αandβhalf-lives(days)ofchlorpyrifos,malathion,anddimethoateinB.safensisculturewere2.13,4.76;2.59,5.66;and9.5,11.0,r
6、espectively.ValuesinB.subtilisandB.cereuscultureswere4.09,9.45and4.33,9.99forchlorpyrifos;2.99,5.36and2.43,4.71formalathion;and9.53,15.11and4.16,9.27fordimethoate.NometabolitewasdetectedinB.subtiliscultures,whereasafewweredetectedfromB.safensisandB.cereuscu
7、ltures.BacterialefficiencycanbeorderedasB.safensis>B.subtilis>B.cereusforchlorpyrifosandB.cereus>B.subtilis>B.safensisformalathionanddimethoate.KEYWORDS:biodegradation,bacteria,chlorpyrifos,dimethoate,malathion,Sudan9■INTRODUCTIONnames,andannualimportsexceed5
8、0tons.Dimethoateisthe9mostheavilyusedinsecticidesusedinSudan.IthasbeenSudanstartedtousepesticidesinthelate1940s.Irrigatedregisteredundermorethan10tradenames,andannualimportscottonschemesarethemajorsect
