超富集植物短毛蓼对锰的富集特征1

2910200910ACTAECOLOGICASINICAVo.l29,No.10Oct.,2009(30560032);(0702k023).:2008211214;:2009201214*Correspondingauthor.E2mai:[e-mail]1,2,3,*,2,3,1(1.,310029;2.,541004;3.,541004):,2.5@105mg/kg,1.66@104mg/kg,Mn,Mn,1.000mmol/L,10000mg/kg;201000mmol/L,,3,9923,18112mg/kg55750mg/kg,,,:;;;:100020933(2009)1025450205:Q142,X171:AAccumulatingcharacteristicsofmanganesebyPolygonumpubescensBlumeDENGHua1,2,3,*,LIMing2Shun2,3,CHENYing2Xu11DepartmentofEnvironmentalEngineering,ZhejiangUniversity,Hangzhou310029,China2DepartmentofEnvironmentalEngineering,GuangxiNormalUniversity,Guilin541004,China3GuangxiKeyLaboratoryofEnbironmentalEngineering,ProtectionandAssessment,Guilin541004,ChinaActaEcologicaSinica,2009,29(10):5450~5454.Abstract:FieldsurveysandhydroponicexpermientswereconductedtoinvestigategrowthresponsesofPolygonumpubescensBlumetoMnanditsabilitytoaccumulatethismeta.lAmaxmiumMnconcentrationinleafdrymatterwasfoundtobe16649mg/kg.TheplantgrowswellonMnminewastelandinGuangxiwithaMnconcentrationashighas250000mg/kg.Underhydroponicconditions,theMnconcentrationinthetissuesoftheplantsincreasedwithincreasingsolutionconcentrations.At1mmol/LMntheMnconcentrationintheleavesexceeded10000mg/kg.At20mmol/L,theplantstillsurvivedwithmaxmiumMnconcentrationintheroots,stemsandleavesreaching9923,18112and55750mg/kgrespectively.TheMnconcentrationsinthestemsandleavesoftheplantsweregreaterthanintherootsinalltheMntreatments.OurresultssuggestthatP.pubescensisaMnhyperaccumulator.ThisspeciesmayprovideapotentialnewresourceforuseinthephytoremediationofMn2contaminatedsoilsandasatoolforexploringthemechanismsofMnhyperaccumulationinplants.KeyWords:manganese;hyperaccumulator;PolygonumpubescensBlume;phytoremediation,,[1],,[2~4],,[5~7],[8,9],,,,,[10]400,,15,4,[11][12][13][14],3,,,,11.1,125km,:25b29c~26b23c,110b37c~111b29c,,,,,,1717e,6465e,1492.2mm,,,,,,5,()(0~30cm)1.2,Hoagland,5cm,,,3,3L10:0.0091(CK)0.500110002.0005.0008.00010.00012.00015.00020.000mmol/L,MnCl2#4H2O,3,45d14h,24h,25~30e,pH,4d11.3,100,20mmol/LEDTA2Na15min,,3,,3,105e30min,70e48h,,,60HNO3+HF+HClO4,HNO3+H2O2,(WFX2110)22.1,(P.pubescensB.)(PolygonumperfoliatumL.)(Kummerowiastriata)(ErigeronacerL.)(PatriniavillosaJuss.)(PanicumrepensL.)(Dicranopterispedata)(RhuschinensisMil.l)(Macleayacordata),,Mn1,Mn,5BakerBrooksMn(10000mg/kg)[15],21076.8~250000mg/kg/5.28,3.78,/1,545110:(mg/kg)Mninleaves(mg/kg)Mninstems(mg/kg)Mninroots(mg/kg)/L/SA/L/RB/S/RC1144184.713916.32883.72745.00.105.071.052117475.414632.23024.92769.70.125.281.093133548.410970.72983.02901.70.083.781.03459300.013028.84210.73222.60.224.041.315250000.016649.93746.63545.90.074.701.06A:RatioofMnconcentrationsinleavestothatinsoils;B:RatioofMnconcentrationsinleavestothatinroots;C:RatioofMnconcentrationsinstemstothatinroots2.2,0.0091~20.000mmol/L,8.000mmol/L,;101000mmol/L,28d,,,,;35d,15.000mmol/L20.000mmol/L,,1Fig.1EffectsofMntreatmentonthebiomassofP.pubescensgrownunderhydroponicconditions(p0.05),,5.000mmol/L,,20.000mmol/L33%45.4%2.31,,:,81000mmol/L,;10.000mmol/L,()Mn,20.000mmol/L,55750.4mg/kg,18112.2mg/kg2,0.0091mmol/L,(MnMn)3750;,,,,,,,,8.000mmol/L9.21,,20.000mmol/L5.62,3()Cd100mg/kg,CoCuNiPb1000mg/kg,MnZn10000mg/kg[15],S/R1(SR545229)[16](1),510000mg/kg,16649.9mg/kg,,1.000mmol/L,10000mg/kg;8.000mmol/L,10000mg/kg,40880mg/kg;20.000mmol/L,1811255750mg/kg;,,,S/R12Table2ManganesebioconcentrationandtranslocationofP.pubescensgrowninnutrientsolutionTreatment(mmol#L-1)/L/N/L/N/L/R/S/R0.009137508234.561.470.5292226.201.131210297.271.192163217.731.395104138.301.60893109.212.341083108.232.291276116.591.961564115.951.88205195.621.83250000mg/kg,201000mmol/L,28d,,,,,pH,,1,,60~90cm,;,5~10cm,1~2.5cm,,,,;,[17],,,,References:[1]YangXL,WangGL,ZhangZC.ManganeseandHealthofHumanBody.MedicalRecapitulate,2006,12(18):1134-1136.[2]EriksonKM,AschnerM.Manganeseneurotoxicityandglutamate_GABAinteraction.NeurochemInt,2003;43:475-80.[3]ZhuCC,ZhuGX.Effectsofmangneseexposureonmalesexualhormone.ChinaPublicHealth,1999;15(1):63-64[4]VartanianJP,SataM,HenryM,HobsonSW,MeyerhansA.Manganesecationsincreasethemutationrateofhumanimmunedeficiencyvirustype1exvivo.JournalofGeneralVirology,1999,80:1983-1986.[5]AydinalpC,MarinovaS.Distributionandformsofheavymetalsinsomeagriculturalsoils.PolishJournalofEnvironmentalStudies,2003,12(5):629-633.[6]CaiGP,GeXX,ZengGM.InvestigationandevaluationofthepollutionofmanganesesulphateinHuangxingTown.EnvironmentalMonitoringin545310:(4):56-59.[7]LiMS,LuoYP,SuZY.HeavymetalconcentrationsinsoilsandplantaccumulationinarestoredmanganeseminelandinGuangx,iSouthChina.EnvironmentalPollution,2007,147:168-175.[8]LevyBS,NassettaWJ.Neurologiceffectsofmanganeseinhumans:areview.InternationalJournalofOccupationalandEnvironmentalHealth,