资源描述：
《Ectopic overexpression of wheat TaSrg6 gene confers water stress tolerance in Arabidopsis》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、PlantScience172(2007)10791086www.elsevier.com/locate/plantsciEctopicoverexpressionofwheatTaSrg6geneconferswaterstresstoleranceinArabidopsisa,b,c,da,b,c,da,b,c,dShaomingTong,ZhongfuNi,HuiruPeng,GuoqingDonga,b,c,d,QixinSuna,b,c,d,*aDepartmentofPlantGenetics&Breeding,StateKeyLabora
2、toryforAgrobiotechnology,ChinaAgriculturalUniversity,Beijing100094,ChinabKeyLaboratoryofCropHeterosisandUtilization,MinistryofEducation,ChinaAgriculturalUniversity,Beijing100094,ChinacKeyLaboratoryofCropGenomicsandGeneticImprovement,MinistryofAgriculture,ChinaAgriculturalUnivers
3、ity,Beijing100094,ChinadBeijingKeyLaboratoryofCropGeneticImprovement,ChinaAgriculturalUniversity,Beijing100094,ChinaReceived1February2007;receivedinrevisedform20March2007;accepted21March2007Availableonline31March2007AbstractTranscriptionalregulationplaysakeyroleinplantresponseto
4、abioticstresses.Studyinbarleyindicatedthatastress-responsivegene(Srg6),aspotentialtranscriptionalregulator,wasinducedbyvariousabioticstresses.However,functionalrolesofSrgproteinsinstresstoleranceareunknown.Inthisstudy,weisolatedawheathomologofbarleySrg6gene,anddesignatedTaSrg6.E
5、xpressionanalysisindicatedthatexpressionofTaSrg6geneisinducedbyvariousstresstreatments,includingPEG,salt,lowtemperatureandABA.ThefusionproteinGFP-TaSrg6wasconcentratedinthenucleuswhentransientlyexpressedinonionepidermalcells.OverexpressionofTaSrg6geneinArabidopsisconferredwaters
6、tresstoleranceintermsofsurvivalrate,CMSvalueandrelativewaterloss.WeconcludedthatTaSrg6proteinplayedanimportantroleintheenhancementofwaterstresstoleranceinplants.#2007ElsevierIrelandLtd.Allrightsreserved.Keywords:Arabidopsis;Waterstress;Overexpression;Stress-responsivegene;TaSrg6
7、;Wheat1.Introductioncascadethatcommenceswithperceptionandsubsequenttransductionofstresssignals,andthenleadingtotheactivationAbioticstressessuchasdrought,salinityorlowtemperatureofvariousstress-responsivegeneexpression[57].aremajorenvironmentalfactorsthathaveadverseeffectsonPervi
8、ousstudieshaveshownthatmanygenesareinducedplant
