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ID:52216704
大小:1.29 MB
页数:5页
时间:2020-03-25
《应用正交设计法优选救心菜不定芽增殖培养基.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、南方农业学报JournalofSouthernAgriculture2015,46(11):2015—2019ISSN2095—119l:CODENNNXAABhttp://ww.T血y)【b.cornDOI:10.3969/j:issn.2095-1191.2015.11.2015应用正交设计法优选救心菜不定芽增殖培养基刘君,黑银秀,朱长志,朱良其+,唐兴国(台州市农业科学研究院,浙江台州317000)摘要:【目的】优选救心菜不定芽增殖培养基,为建立救心菜再生体系提供技术支持。【方法】以救心菜叶片为外植体,采用k(34)正交试验设计,分析不同浓度6.
2、BA、IBA、NAA和AgNO,组合对救心菜叶片愈伤组织诱导及不定芽增殖的影响。【结果】以75%乙醇(0.5min)结合0.1%Hgcl2(10.0min)处理外植体表面的灭菌效果最佳;随着6.BA浓度的升高,愈伤组织的诱导效果越佳,诱导率最高可达93.33%;各生长调节剂对救心菜不定芽分化和增殖影响排序为6一BA>NAA>IBA>AgN03,最适宜外植体芽诱导的培养基为6.BA4.0mg/L+NAA0.3m∥L+AgN0310.0mg/L。经优选救心菜植株再生体系扩繁的组培苗生根率达100.00%,移栽成活率在98.00%以上。【结论】救心菜植株再生
3、体系为:以75%乙醇处理0.5min结合0.1%HgCl:处理10.0min进行救心菜外植体表面灭菌,以MS+6.BA4.0mg/L+NAA0.3mg/L+AgNO,10.0mg/L为外植体芽诱导最适宜培养基,利用该体系可进行救心菜组培苗扩繁。关键词:救心菜;不定芽;组织培养;快速繁殖;正交试验中图分类号:$647文献标志码:A文章编号:2095—1191(2015)11-2015-05MultiplicationmediumoptimizationofSedumaizoonL.adventitiousbudsbyorthogonaldesignmet
4、hodLIUJun,HEIYin—xiu,ZHUChang-zhi,ZHULiang-qi+,TANGXing-guo(TaizhouAcademyofAgriculturalSciences,Taizhou,Zhejiang317000,China)Abstract:【Objective]ThemultiplicationmediumoptimizationofadventitiousbudsforSedumaizoonL.wasopti-mized,inordertoprovidetechnicalsupportsforestablishingre
5、generationsystemofs.aizoonL一【Method]UsingleavesofsIaizoonL.asexplants,thek(34)orthogonalexperimentwasconductedtoinvestigateeffectsofdifferentgrowthregulatorcombinations(6一BA,IBA,NAAandAgN03)oncallusinductionandadventitiousbudmultiplication.【Result]There—sultsshowedthat。whenexpla
6、ntsweretreatedwith75%alcoholforO.5minand0.1%HgCl2for10.0rain,thesterilizationeffectofthistreatmentmethodonexplantsurfacewasoptimal.Withtheincreaseofconcentrationof6-BA,thecallusin-ductioneffectof6一BAgotbetter.theinductionratecouldreachupto93.33%.Furthermore.thegrowthregulatorsaf
7、fect-ingadventitiousbuddifferentiationandproliferationofS.aizoonL.wererankedbasedontheirinfluenceextents.asfol—lows:6-BA>NAA>IBA>AgN03.AndtheoptimalmediumforbudinductionofexplantsWasMS+6一BA4.0mg/L+NAA0.3mg/L+AgN0310.0mg/L.Underoptimizedplantregenerationsystem,therootingrateoftis
8、sue—culturedplantletswasfoundtobe100%anditstran
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