简介：

简介：现在的学习瞄准了估计与海洋的海绵联系的细菌的antifouling活动。八细菌的紧张的一个总数从海绵Sigmadociasp的表面被孤立，他们，SS02，SS05和SS06对形成biofilm细菌显示出禁止的活动。这3紧张的摘录更加影响了生产形成biofilm的能力和粘附的细胞外的聚合物质细菌的紧张。除了圆盘散开试金，microalgal解决试金被执行，摘录与聚氨酯木头光泽混合了并且到不锈钢赠券上涂。紧张SS05的摘录显示出强壮的microalgal解决禁止的活动。紧张SS05基于它的16SrRNA基因作为杆菌仙影拳被识别。与海洋的无脊椎动物联系的细菌的紧张的代谢物答应被发展进环境友好的antifouling代理人。

简介：Afterthesingle-strainabilitiesoforganic-pollutant-degradingbacteriainbioremediationofsedimentenvironmentofshrimpculturearedetermined,themultistraindegradingeffectofthecompositionsofdifferentstrainsismeasured.Theresultsindicatethatthemulti-strainsgroupshavehigherdegradingabilitythanthesingle-straingroups.Three-straingroupsarebetterthantwo-straingroups,andfourstraingroupsarebetterthanthree-straingroupsandfive-straingroups,thegroupscomposedofstrainsLt7222,Lt7511,Fc6308andGy7018hasthebestdegradingeffect,theCODMnremovalrateis73.2%in66h,andgetsto82.7%in114h,30%higherthanthatofthebestsingle-straingroup;GroupsofLt7222,Lt7511,Lt7451andGy7018arethesecond,whoseCODMnremovalrateis82.1%in114h,Itissuggestedthatmulti-speciesbacteriabeusedasfunctionalbacteriainbiorernediationofmaricultureenvironment.

简介：Atwo-dimensionaldepth-integratednumericalmodelisrefinedinthispapertosimulatethehydrodynamics,gradedsedimenttransportprocessandthefateoffaecalbacteriainestuarineandcoastalwaters.Thesedimentmixtureisdividedintoseveralfractionsaccordingtothegrainsize.Abedevolutionmodelisadoptedtosimulatetheprocessesofthebedelevationchangeandsedimentgrainsizesorting.Thefaecalbacteriatransportequationincludesenhancedsourceandsinktermstorepresentbacterialkinetictransformationanddisappearanceorreappearanceduetosedimentdepositionorre-suspension.Anovelpartitionratioanddynamicdecayratesoffaecalbacteriaareadoptedinthenumericalmodel.ThemodelhasbeenappliedtotheturbidwaterenvironmentintheBristolChannelandSevernestuary,UK.Thepredictionsbythepresentmodelarecomparedwithfielddataandthosebynon-fractionatedmodel.

简介：PCR-DGGEapproachwasusedtoanalyzebacterialdiversityinthebottomsectionofsevenarcticseaicesamplescolletedfromtheCanadaBasin.Thirty-two16SrDNAsequenceswereobtainedfromprominentDGGEbands.Theclosestrelativesofthesesequencesarefoundtobethoseofcultivatedorunculturedbacteriafromantarcticorarcticseaice.Phylogeneticanalysisclusteredthesesequencesorphylotypeswithinα-proteobacteria,γ-proteobacteriaandCFB(cytophaga-flexibacter-bacteroides)group.Sequencesbelongingtoγ-proteobacteriaweredominantandmembersoftheCFBgroupwerehighlyabundant.ItwassuggestedthattheCFBgroupwastherepresentativeofthebottomsectionofseaicesamples.

简介：57个细菌从水取样从海洋的不同纬度和经度是镇定的南部的海洋(印度部门)被孤立。所有isolates能在4点成长吗？？