2015:2015-03-11:(2009ZKC04-16):(1988-),,,,()15202430998()1092211866@qq.com;,(1954-),,,,、,()wuling.chen@263.net。541320157HubeiAgriculturalSciencesVol.54No.13Jul.,2015,、、[1]。1500~2000,、,50%~80%,,1~40,6~8。,,90%[2]。。4:、、、。,,,[3,4]。、[5]。1,1,2,1,1,1(1.,710069;2.,450046):、2,L-1D-2,、,L-1D-2,,。,(Sphingobacteriummultivorum)(Zoogloeaoryzae)。9%、72h、pH7.5,,85%。,。:;;;:Q93-331;X741:A:0439-8114(2015)13-3104-04DOI:10.14088/j.cnki.issn0439-8114.2015.13.009ScreeningonHighlyEfficientOil-degradingBacteriaandTheirApplicationinOilSewageDisposalHUANGMin-gang1,FURui-min1,2,GUYa-nan1,GUOYan-zhao1,CHENWu-ling1(1.CollegeofLifeScience,NorthwestUniversity,Xi'an710069,China;2.HenanInstituteofEducation,Zhengzhou450046,China)Abstract:Twostrains(L-1,D-2),whichcandegradepetroleum,wereisolatedfromcrudeoilofXinjiangoilfieldandDaqingoilfieldrespectively.Afterthemorphological,physiological,biochemicalandmolecularanalysis,thetwostrainswereidentifiedandmixedtogetherinequalproportiontoformthemicrobialagents.Then,themicrobialdegradationratesofcrudeoilwithdifferentconcentrationandpropertiesweretested.Afterthat,themicrobialagentswerepreliminarilyappliedtocrudeoilsewagedisposal.Aswasshownintheresults,thestrains(L-1,D-2)wereidentifiedasSphingobacteriummultivorumandzoogloeaoryzaerespectively.Theoptimalinoculatingconcentrationofthemicrobialagentswas9%,theoptimalprocessingtimewas6h,andoptimalpHwas7.5.Underthatcondition,theremovalrateofcrudeoilcouldreach85%.Therefore,thetwooil-degradingbacteriumwereconsideredtohavegreatutilizationpotentialsonoilsewagedisposal.Keywords:oil-degradingbacteria;crudeoil;oilsewage;waterdisposal1311.11.1.1,1。1.1.2:NaCl10g,NH4Cl1.5g,K2HP040.5g,MgS040.5g,CaCl20.2g,KCl0.1g,FeS04·7H200.02g,5mL,1000mL,pH7.0;:3g,10g,NaCl5g,20~30g,1%,1000mL,pH7.0~7.2;:NaCl10g,NH4Cl1.5g,K2HP040.5g,MgS040.5g,CaCl20.02g,KCl0.1g,FeS04·7H200.02g,1000mL,pH7.0,。1.1.3,2。1.21.2.110g200mL,35℃、150r/min7d,[6]。D-1~D-6,L-1~L-7。,1mL100mL4g/L,,150r/min,35℃,5dGC[7],3,4g/L,,。LB,。1.2.2,LB,32℃24h,,,[8]。1.2.3[9],DNA16SrDNA。16SrDNAPCR(27F:5′-AGAGTTGTCATGGCTC-3′1492R:5′-TACGGYTACCTTGTTACGACTT-3′),。PCR(94℃,5min;94℃,50s→50℃,50s→72℃,90s,30;72℃,10min)。PCR,MEGA3.0NCBI16SrDNA,1000[10]。1.2.41)。,,1、2、4、6、8、10g/L,5%,3,,150r/min,35℃,5、10、15d,GC。=(m1-m2)/m1×100%,,m1,m2。2)。,4g/L,5%,4,3,1(+)、2(+),,150r/min,35℃,15d,GC。1.2.5,L-1D-21∶1,1000mL,35℃、150r/min,、、pH3,L16(43),34,,。22.11//%57.4237.68//%21.6116.52//%6.7220.822//mg/L//mg/L//mg/LpH//℃1000~300062~15642750~512508.5~10.842~552000109470009.7548.5:3105201576,L-1~L-7D-1~D-6,,,,L-1D-2。3。L-1D-2LB,,L-1D-2,。[8]L-1D-2:L-1D-2,,,L-1LB,,,,D-2LB、、。L-1D-216SrDNAPCR,1500bp,1,PCR,1491bp1482bp,NCBI16SrDNA,Bioedit7.0,,(2),,L-1SphingobacteriummultivorumIAM14316(AccessionNo.NR_040953)99%,D-2ZoogloeaoryzaeA-7(Ac-cessionNo.AB201043)97%,,L-1(Sphingobacteriummultivorum)D-2(Zoogloeaoryzae):2.22.2.1,,。L-1D-21∶1,5%,,3,3,,,5d,,12.4%~32.3%。10~15d,4g/L,,4g/L,,4g/L,,,,,、,。,,。5d,1g/L;10d15d,4g/L。,,,.10d,,,(4g/L),。2.2.2,,[11];,,35d10d15d80706050403020100//%1g/L2g/L4g/L6g/L8g/L10g/L3L1L2L3L4L5L6L7//%46.59.812.638.432.726.825.2D1D2D3D4D5D6//%33.142.515.728.325.731.362L-1D-21L-1D-216SrDNAPCR2000bp1000bp750bp500bp250bp100bpL-1D-2310613412345678910111213141516T1T2T3T4RpH2(7.5)21(6)113(8.5)4(9)334414232210.8290.8258.2249.2801(3%)3(9%)4(12%)2(6%)323311412244222.6241.8271.3273.350.73(72h)4(96h)342(48h)1(24h)1342413221202.9239.2273.0293.991//%61.286.164.356.152.946.749.582.870.353.681.437.564.774.358.469.2﹥﹥,,[12]。、4,,,,,。4,,,。,,,。2.3L16(43)[13],4,4R3﹥R1﹥R2,,pH,。4,pH7.5、12%、96h,、,pH7.5、9%、72h。32,、,2(Sphingobacteriummultivorum)(Zoogloeaoryzae)。L-1D-2,46.5%42.5%。[14,15]、。1∶1,、,,、,,4g/L,;。,34,,9%,pH7.5,72h,。,[16],。,,,。,。,,。:[1]《、、》.、、[M].:,2001.[2],,,.121009080706050403020100//%1(),2()4(3113):310713[J].,2014,39(2):126-128.[3],,,.[J].,2013,13(15):4313-4316.[4],,,.[J].,2006,19(4):20-26.[5],,,.[J].,2003,23(12):13-15.[6],,,.2[J].,2014,30(1):60-64.[7].GC-MS[J].,2012(4):92-99.[8]RE,NE.[M]..《》,.:,1984.[9]FANIR,BANDIC,BAZZICALUPOM,etal.PhylogenyofthegenusAzospirilllumbasedon16SrDNAsequence[J].FEMSMicrobiolLetters,1995,129:195-200.[10]HANJ,SUNL,DONGX,etal.Characterizationofanovelplantgrowth-promotingbacteriastrainDelftiatsuruhatensisHR4bothasadiazotrophandapotentialbiocontrolagenta-gainstvariousplantpathogens[J].SystApplMicrobiol,2005,28(1):66-76.[11],,,.[J].,2008,27(1):230-233.[12].[D].:,2013.[13],,,.[J].,2003,24(3):279-284.[14]筭,,,.[J].,2012,32(7):1572-1578.[15].、[D].:,2010.[16],,,.[J].,2009,25(2):80-83.()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!(3107):[1],,,.[J].,2000,20(4):552-558.[2]MEYERLD.Evaluationoftheuniversalsoillossequation[J].JournalofSoilandWaterConservation,1984,39:99-104.[3],,.GIS[J].,2007,16(1):102-107.[4],,,.GISCSLE[J].,2009,23(5):61-66.[5],,.[J].,2006,21(9):31-38.[6],,.[J].,2008,6(3):1-7.[7]SL190-1996,[S].[8]WISCHMEIERWH,SMITHDD.PredictingRainfallErosionLossesfromCroplandinEastoftheRockyMountains[M].Washington,DC:USDepartmentofAgriculture,1965.[9],,,.RUSLE:[J].,2011,31(3):161-167.[10],,,.[J].,2011,31(1):249—255.[11].[J].,2002,20():1-9.[12],,.GISRUSLE———[J].,2007,25(5):