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1、Microbiologyandplantinteractionsresistenceonheavy-metalHeavymetalsbeingtransferredtohumansviathefoodchainwouldfinallythreatenhumanbeingshealth.Heavy–metalpollutantsBioremediationonheavymetalsMetalresistanceofmicroorganismsPlantrhizospherebacteriaPlantendophyticbacteriaGrowinplantroot
2、system.Withbacteria,actinomycetes,fungi,algae,andtheprotozoa.Alternaterelationshipbetweenthemandplant.Plantrootsinteractionandpromoteeachother.RhizospherebacteriaBacteriaWidelydistributed,manyvarieties,fastmetabolismandreproduction.Chemicalcompositionofbacterialcellwallscontainmanyhe
3、avymetalionsadsorptiongroups,suchascarboxyl,amino,hydroxyl.CyanobacteriaFungiSmallmold,single-celledyeastandfruitingbodyoflarge-scalefungus.Theircellwallscontainconsistslargelyofchitinandglucan.Fungihavepotentialforheavymetaladsorptionability.SaccharomycesCerevisiaeWhite-rotfungiadso
4、rbePb2+,thehighestremovalratecanreach95%.BlackrhizopusadsorbeAg+,Pb2,Li+andCd2+,Zn2+andNi2+,Cu2+,suchasheavymetalions.AlageWidedistribution,agoodbiologicaladsorbent.Thewallsofalgaehasalargersurfacearea.Cellwallshaveacertainchargeandviscous,thesecharacteristicsmakethemetalionhastheabi
5、lity.ScenedesmusObliquusHasalargeradsorptioncapacitytoUO22+.TheUO22+concentrationinthewaterfrom5.0mg/Lfellto0.05mg/L.Akindofparasiticbacteriainplantbody,allplantshaveendophytes.Endophyticbacteria(PGPB)isakindofparasiticlife,promotethegrowthofthehost.Canenhanceplantresistancetopathoge
6、ns,drought,heavymetal.EndophyticbacteriaFromElsholtziasplendensandduckplantargrass(Commelinacommunis).Firmicutes,Actinobacteria,Proteobacteria.Thesebacteriastrainsincopperresistanceofmaingroups.TheCr6+resistantplantgrowthpromotingbacteria(PGPB),Pseudomonassp.PsA4andBacillussp.Ba32wer
7、eisolatedfromheavymetalcontaminatedsoilsandtheirplantgrowthpromotingactivityontheIndianmustard.Releaseofchelatingagentandironcarrier.Acidificationofthesoilenvironment,ChangetheREDOXpotential.Reducetheabsorption.IncreasethedischargeOxidationreductionModeofresistancetoheavy-metalMechan
8、ismsofresist
