琚 姝 周长林* 窦 洁( 210009) * Tel:025-83271323,E-mail:ChanglinZhou@yahoo.com:2004-11-22,:2005-01-28:(nitrite-oxidizingbacteria),28℃~30℃、110r/min,pH、、、NaCl、。,pH8.0~8.5、NaNO24,500mg/L、Na2CO31.5g/L、NaCl0~0.5%、0~0.1%,,9d,4.6×109MPN/mL,NO-2-NNO-3-N。NaCl0.5%、0.1%,。NO-2-N,25℃、pH8.6,NO-2-N3d,18dNO-2-N1.47mol/L0.49mol/L。:,,:Q93 :A :0253-2654(2005)05-0056-06StudiesontheCultureandApplicayionofaNitrite-oxidizingBacteriumwithHighNitrificationActivityJUShu ZHOUChang-Lin* DOUJie(Schooloflifesciencetechnology,ChinaPharmaceuticalUniversity,Nanjing210009)Abstract:Astoanitrite-oxidizingbacteriumscreenedinourlaboratory,theeffectofpH,nitrogensources,car-bonsourcesandsodiumchlorideonitsgrowthwasstudiedinordertoobtainhighcelldensity.Itshowedthatthecultureconditionsofnitrite-oxidizingbacteriumwere4500mg/Lsodiumnitrite,1.5g/Lsodiumcarbonate,0~0.5%sodiumchlorideand0~0.1%glucoseat28℃~30℃,110r/minandpH8.0~8.5.Aftercultivationfor9days,thebacteriaconcentrationreached4.6×109MPN/mLandallNO-2-NinthemediumwasconvertedtoNO-3-N.Butthetransformationofnitrogensourceswasinhibitedwhilethesodiumchlorideconcentrationex-ceeded0.5%orglucoseconcentrationexceeded0.1%.AccordingtothetestofNO-2-Nconversionwithnitrite-oxidizingbacteriainafreshwateraquaculturepond,NO-2-Nbegantodecreaseonthethirddayofthemoculationofthisbacteriumandtheconcentrationdroppedfrom1.47mol/Lto0.49mol/Lafter18daysat25℃andpH8.6.Keywords:Nitrite-oxidizingbacteria,Cultivate,Nitritetransformation。,,NH3NO-2,;,NO-2NO-3,[1]。,,。56 200532(5)DOI:牨牥牨牫牫牬牬牤jmicrobiolchina牪牥牥牭牥牭牥牨牭,[2,3]。,,。,,,,;,,[4],0.42mg/L[5],,,NO-2-N0.1mg/L。NO-2-N,,NO-2-NNO-3-N。,、、,,,,,。,、,。,。,[6],。1 1.1 1.1.1 :N6,。1.1.2 :BiostatC-10(B.Braun.Biotech.Corp.Germany);NewBrunswickScientificC-25(USA);752。1.1.3 :。1.2 1.2.1 ::NaNO21.0g,Na2CO31.0g,MgSO47H2O0.03g,MnSO44H2O0.01g,K2HPO40.75g,NaH2PO40.25g,1,000mL,pH7.5~8.5。:NaNO20.1g~5.0g,Na2CO30.5g~3.0g,Mg-SO47H2O0.03g,MnSO44H2O0.01g,K2HPO40.75g,NaH2PO40.25g,NaCl0g~2.0g,0~1%,1,000mL,pH4.0~10.0。1.2.2 :110r/min,28℃~30℃。、。1.2.3 :MPN[7]。1.2.4 NO2-NNO-3-N[8]:NO2-N;NO-3-N。2 2.1 pH、pH、。,。,110r/min2.0mg/L,;28℃~30℃。pH4.0,5.0,6.0,6.5,57 200532(5) 7.0,7.5,8.0,8.5,9.010.0,pHNO-2-NNO-3-N1。,pH6.5~9.0,,NO-2-NNO-3-N,pH6.5~8.5;pH8.0~8.5,,NO-3-N。1 pHNO2--N(a)NO3--N(b)4,5,6,6.5,7,7.5,8,9,102.2 NO-2,NO-2。NO-2,,NO-3NaNO2。NaNO2NaNO2NO-3-N(2),,NaNO24,500mg/L,7~18d,NaNO2;NaNO25,000mg/L,9.91%,4,500mg/L。2 NaNO2NO2--N(a)NO3--N(b)500,1,500,2,500,3,500,4,500,5,0002.3 ,CO2()[9]。CaCO3,CaCO3,,CaCO3[10]。Na2CO3,Na+,。C/N,,Na2CO3。NaNO24,500mg/L,9d,58 200532(5)Na2CO31.0~3.0g/LNaNO2,Na2CO33.0g/L(3)。7d,Na2CO31.5g/L,8.6×107MPN/mL,Na2CO33.0g/L(1),。1.5g/L。3 Na2CO3NO2--N(a)NO3--N(b)0.5,1,1.5,2,2.5,3,3.5,41 7dNa2CO3Na2CO3/(g/L)0.51.01.52.02.53.03.54.0/(MPN/mL)4.1×1077.2×1078.6×1076.8×1075.8×1074.6×1076.5×1064.6×1062.4 2.4.1 :,,,。200mg/LNaNO2,NaCl0.05%~2%NaNO2NO-3-N(4)。NaCl0.5%,。NaCl,,,。4 NaClNO2--N(a)NO3--N(b)0%,0.05%,0.1%,0.5%,1%,1.5%,2%2.4.2 :500mg/LNaNO2,0~1%NaNO2NO-3-N(5)。0.1%,59 200532(5) 。,NaNO2。,,,,,。5 NO2--N(a)NO3--N(b)0%,0.05%,0.1%,0.2%,0.5%,1%2.4.3 NO-2-N:10×106cfu/g,NO2--N,2。,25℃、pH8.6,NO-2-N3d,18d1.47mg/L0.49mg/L,NO2-。2 NO-2-Nt/dc(NO2-N)/(mg/L)c(NO3-N)/(mg/L)pHt/℃01.4690.0498.4224.521.4550.0988.4624.641.3090.0338.6024.561.2400.0988.7424.781.0330.3608.7225.0101.1930.2958.8624.7120.8470.7868.6924.8140.7320.1648.9024.7160.5620.3278.6024.6180.4900.0668.6424.73 ,,。,,,,,,,,,。,,,,。pH60 200532(5)8.0~8.5,、,9d4.6×109MPN/mL。18d,4,500mg/LNaNO2NO-3-N。NaCl0.5%、0.1%。[1] ,.,1999,26(3):215~217.[2],,.,1999,27(3):351~353.[3]TappeW.FEMSMicrobiologyEcology,1996,19(1):47~52.[4] ,.,2000,91:3~7.[5],,.,1999,18(2):20~26.[6],.,1999,29(1):21~24.[7]..:,1988.40~44.[8]..:,1989.254~354.[9]BuchananRE,GibbonsNE.().:,1984.622~626.[10] .,2003,13(7):103~105.《》、《》《》、《》、,,,、、、20。、、,、、、、,、、。《》(2004),《》、《》1.02240.8935,“”23。2003~2005,《》“”、“”“”。2004,、。:《》()2-819,200640,480。《》()2-810,200630,360。欢迎订阅,欢迎网上注册投稿,欢迎刊登产品与服务广告 : :100101 : E-mail:ybxue@genetics.ac.cn: E-mail:swli@genetics.ac.cn/:010-64889354,010-6488934861 200532(5)