牛大力组织培养技术研究
2020-06-21陆滟灵林敏安冰
陆滟灵 林敏 安冰



摘要 本试验通过组织培养手段,以牛大力种子为材料,对外植体诱导及无菌组织培养进行了尝试,以期获得牛大力外植体诱导、增殖和生根的适宜培养基和培养条件。结果表明,消毒方式为75%酒精消毒30 s+0.1%氯化汞消毒15 min,外植体诱导培养基为改良1/2 MS+蔗糖15 g/L+琼脂6 g/L+6-BA 0.4 mg/L+NAA 0.15 mg/L+益培灵0.20 g/L,增殖培养基为改良MS+蔗糖30 g/L+琼脂6 g/L+6-BA 0.6 mg/L+NAA 0.20 mg/L+益培灵0.10 g/L,生根培养基为改良1/2 MS+蔗糖15 g/L+瓊脂6 g/L+IBA 1.5 mg/L+ABT 1 1.5 mg/L+益培灵0.05 g/L,较适宜牛大力组织培养。
关键词 牛大力;组织培养;外植体
中图分类号 S567.19 文献标识码 A
文章编号 1007-5739(2020)11-0069-02 开放科学(资源服务)标识码(OSID)
Research on Tissue Culture Technology of Millettia specisoa
LU Yan-ling LIN Min AN Bing *
(Guangxi Paiyangshan State Forest Farm,Ningming Guangxi 532500)
Abstract In this experiment,tissue culture was carried out with Millettia specisoa Champ. seeds as the material,explant induction and aseptic tissue culture were attempted,in order to obtain the suitable culture medium and culture conditions for explants induction,multiplication and rooting of Millettia specisoa. The results showed that,the disinfection method was 75% alcohol disinfection for 30 s+0.1% HgCl2 disinfection for 15 min,the explant induction medium was improved 1/2 MS+sucrose 15 g/L+AGAR 6 g/L+6-BA 0.4 mg/L+NAA 0.15 mg/L+Yipeiling 0.20 g/L,and the multiplication medium was improved MS+sucrose 30 g/L+AGAR 6 g/L+6-BA 0.6 mg/L+NAA 0.20 mg/L+Yipeiling 0.10 g/L,the rooting medium was improved 1/2 MS+sucrose 15 g/L+AGAR 6 g/L+IBA 1.5 mg/L+ABT 1 1.5 mg/L+Yipeiling 0.05 g/L,which was more suitable for Millettia specisoa tissue culture.
Key words Millettia specisoa Champ.;tissue culture;explant
牛大力(Millettia specisoa Champ.),学名崖豆藤,豆科崖豆藤属植物[1]。牛大力性味甘、平,具有补虚润肺、强筋活络的功效,药食两用,是生产多种中成药的主原料。近年来,随着市场需求的增加,牛大力野生资源日趋枯竭,其育苗培养主要通过播种育苗和扦插育苗的方式[2],以种子为外植体材料进行牛大力组培快繁的研究鲜有报道。本试验采用野生牛大力种子为外植体,开展组织培养技术研究,以期建立组织培养体系,为野生牛大力组培快繁提供参考[3]。
1 材料与方法
1.1 试验材料
供试牛大力种源来自于广西宁明县,采收成熟的新鲜野生荚果种子。
试验所用的组培高效抑菌剂——益培灵购自上海宇涵生物科技有限公司,是一种新型组织培养专用防污染杀菌剂。益培灵抑菌剂的作用机理是穿透微生物的细胞壁进入细胞内部,通过干扰复制或断开微生物关键蛋白质的键而发挥杀菌作用。
1.2 试验设计……p>
