陸滟靈 林敏 安冰



摘要? ? 本試驗通過組織培養手段,以牛大力種子為材料,對外植體誘導及無菌組織培養進行了嘗試,以期獲得牛大力外植體誘導、增殖和生根的適宜培養基和培養條件。結果表明,消毒方式為75%酒精消毒30 s+0.1%氯化汞消毒15 min,外植體誘導培養基為改良1/2 MS+蔗糖15 g/L+瓊脂6 g/L+6-BA 0.4 mg/L+NAA 0.15 mg/L+益培靈0.20 g/L,增殖培養基為改良MS+蔗糖30 g/L+瓊脂6 g/L+6-BA 0.6 mg/L+NAA 0.20 mg/L+益培靈0.10 g/L,生根培養基為改良1/2 MS+蔗糖15 g/L+瓊脂6 g/L+IBA 1.5 mg/L+ABT 1 1.5 mg/L+益培靈0.05 g/L,較適宜牛大力組織培養。
關鍵詞? ? 牛大力;組織培養;外植體
中圖分類號? ? S567.19? ? ? ? 文獻標識碼? ? A
文章編號? ?1007-5739(2020)11-0069-02? ? ? ? ? ? ? 開放科學(資源服務)標識碼(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.),學名崖豆藤,豆科崖豆藤屬植物[1]。牛大力性味甘、平,具有補虛潤肺、強筋活絡的功效,藥食兩用,是生產多種中成藥的主原料。近年來,隨著市場需求的增加,牛大力野生資源日趨枯竭,其育苗培養主要通過播種育苗和扦插育苗的方式[2],以種子為外植體材料進行牛大力組培快繁的研究鮮有報道。本試驗采用野生牛大力種子為外植體,開展組織培養技術研究,以期建立組織培養體系,為野生牛大力組培快繁提供參考[3]。
1? ? 材料與方法
1.1? ? 試驗材料
供試牛大力種源來自于廣西寧明縣,采收成熟的新鮮野生莢果種子。
試驗所用的組培高效抑菌劑——益培靈購自上海宇涵生物科技有限公司,是一種新型組織培養專用防污染殺菌劑。益培靈抑菌劑的作用機理是穿透微生物的細胞壁進入細胞內部,通過干擾復制或斷開微生物關鍵蛋白質的鍵而發揮殺菌作用。
1.2? ? 試驗設計……p>