反硝化聚磷菌的培养驯化及其FISH鉴定占茹

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FISH,,(,215011):SBR,-,。FISH,NO3--N,Rhodocclussp.,,Pseudomonassp.。:;;FISH;:X703:A:1672-0679(2010)04-0010-05、、[1]。,,。[2,3](-、---、-)[4,5](-、-)。-(DPB)。。DPB,[6],。(FISH),。,SBR,,,-DPB。FISH,DPB,。11.1SBR(1),60cm,60cm,17L,13L。3,8h,10min,150min,210min,、、。8L,4L,KNO31L,30mg/L,45min。3000~4000mg/L,SRT16d。,、。1.2。CH3COONa、NH4Cl、KH2PO4COD、NH4+-N、PO43--P。1。———————————————————[]2010-10-22[](1985-),,,。:(1964-),,,。,Email:yinling-song@hotmail.com1SBR234()Vol.23No.4201012JournalofSuzhouUniversityofScienceandTechnology(EngineeringandTechnology)Dec.20104。1.3CODCODCr;(PO43--P):[7];:[7];:N-(1-)[7];:[7];MLSS:[7]。1.4FISH1.4.1:EUB338(5’-GCTGCCTCCCGTAGGAGT-3’),TexasRed5’,;PAO651(5’-CCCTCTGCCAAACTCCAG-3’),FITC5’,β-Proteobac-teriaRhodocyclussp.;Ps(5’-GCTGGCCTAGCCTTC-3’),FAM5’,Pseudomonassp.。25ng/μL。1.4.2SBR,30min,4%4℃30min。1~1.5mLEP,12000r/min4℃5min,。0.01mol/LPBS,12000r/min5min,20.01mol/LPBS。1∶1PBS,-20℃。1.4.3,50%、80%、95%3min,。10μL40μL,15μL,,(PAO651PsEUB338)。(48℃20min)20min,,。。2。PAO651。222.12,117.1%,2.86mg/LNO3--N,,。3,,5.09%,6、7,,33~7d。1~7d,COD249~277mg/L(4),COD183~224mg/L,COD,CODNO3-DPB[2]。()COD,DPB。DPB     1   !#$#%&##’2PO43--P !#$!:FISH112010(),DPB,。CODDPBNO3--N,。1~7dCODCODDPB,COD(4),COD。DPB,,(PHB),。COD,,。28,(3),DPB。19~21d,19~21dCOD,COD,PHB,,。22~40dCOD220mg/L,4COD,DPBPHB,PHB。40d,80%,1mg/L;COD70%,COD60~70mg/L;,1mg/L。SBR-40d,DPB,。2.2FISH5SBR5、24、40dFISH,5(a)TexasRedEUB338;5(b)FITCPAO651;5(c)ProPlusimage6.05(a)、5(b),Rhodocclussp.。5,5d,Rhodocclussp.,5%(ProPlusimage6.0),,,。-,Rhodocclussp.,,24d,Rhodocclussp.16%,,。(40d),NO3--NDPBRhodocclussp.,29%。Bond[10]Rhodocclussp.。JohwanAhn[11]FISHO2NO3--N,Rhodoc-clussp.,。,PsSBR,Pseudomonassp.。、Pseudomonassp.[12,13]。,,34COD124,。,FISH,NO3--NDPB,Rhodocclussp.,,Pseu-domonassp.。5FISH3(1)SBR,,,-,40d,,COD60~70mg/L,70%;PO43--P1mg/L,80%;NO3--N1mg/L。(2)FISH,NO3--NDPB,Rhodocclussp.,,Pseudomonassp.。:[1],.[J].,2003,19(9):32-34.[2],,.[J].,2009,25(5):5-8.(a)EUB338,TexasRed,=10μm(b)PAO651,FITC,=10μm(c)ProPlusimage6.0(a)、(b)5d5d5d24d24d24d40d40d40d:FISH132010()[3],,,.[J].,2004,24(1):45-49.[4],.SBR[J].,2009,32(8):6-8.[5],,.[J].,2006,5(7):74-77.[6],.[M].:,2000.[7]《》.[M].:,1989.[8]AmannRI.Insituidentificationofmicro-organismsbywholecellhybridizationwithrRNA-targetednucleicacidprobes[A]//In:AkkermansADL,ElsasJD,deBruijFJ,editors.Molecularmicrobialecologymanual[C].London:Kluwer,1995,1-5.[9]KHSchleifer,RAmann,WLudwig,etal.NucleicacidprobesfortheidentificationandinsitudetectionofPseudomonasspp.InE.Galii,S.Sil-ver,andB.Witholt(ed.)pseudomonas:molecularbiologyandbiotechnology[M].WashingtonD.C.:AmericanSocietyforMicrobiology,1992:127-134.[10]PLBond,PHugenholtz,JKeller,etal.BacterialcommunitystructuresofPhosphate-removingnon-phosphate-removingactivatedsludgefromsequencingbatchreactors[J].Appl.Environ.Microbiol,1995,61(5):1910-1916.[11]JAhn,TDaidou,STsuneda,etal.Characterizationofdenitrifyingphosphate-accumulatingorganismscultivatedunderdifferentelectronacceptorconditionsusingpolymerasechainreaction-denaturinggradientgelelectrophoresisassay[J].WaterResearch,2002,36:403-412.[12],,,.[J].,2003,29(8):33-35.[13],,,.[J].,2005,21(4):345-349.EnrichmentandCultivationofDenitrifyingPhosphorus-removingBacteriaandFISHIdentificationZHANRu,SONGYin-ling,LIHua(SchoolofEnvironmentalScienceandEngineering,SUTS,Suzhou215011,China)Abstract:Thedenitrifyingphosphorus-removingbacteria(DPBs)werecultivatedsuccessfullybytheanaerobic-anoxicapproachintheSBRreactor,showinggoodperformanceinthenitrogenandphosphorusremoval.Inaddi-tion,theactivatedsludgeofthedenitrifyingphosphorus-removingbacteriaindifferentdomesticationperiodswasidentifiedthroughtheFISHtechnique,theresultshowedthat,duringtheprocessofNO3-Nastheelectronac-ceptortocultivatetheDPB,theRhodocclussp.andtherelatedmicrobialstrainsbecamethedominantbacteriagradually,occupyingaconsiderableproportion,andthePseudomonassp.werehardlydetected.Keywords:denitrifyingphosphorus-removingbacteria;cultivationapproach;FISH;identification(:)14

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