XIA Jiu-cheng,ZHENG Yi,DAI Qin-chuan.Study on Tissue Culture of Dendrobium candidum[J].HEILONGJIANG AGRICULTURAL SCIENCES,2022,(02):69-74.[doi:DOI:10.11942/j.issn1002-2767.2022.02.0069]
铁皮石斛的组培技术研究
- Title:
- Study on Tissue Culture of Dendrobium candidum
- Keywords:
- Dendrobium candidum; stem segments; medium; tissue culture
- 文献标志码:
- A
- 摘要:
- 为了研究铁皮石斛最佳的组织培养方法,本试验以铁皮石斛带节茎段作为外植体,探寻铁皮石斛的最佳基本培养基,最优消毒时间,以及不同浓度的NAA和6-BA对腋芽诱导、丛芽增殖、生根壮苗的影响。结果表明:以铁皮石斛带节茎段作外植体时,最佳的基本培养基是1/2MS培养基,在1‰HgCl2中浸泡消毒的最优时间为10 min;诱导腋芽时以1/2MS+10 g·L-1蔗糖+0.6 mg·L-1 NAA+1.5 mg·L-1 6-BA为最佳培养基;诱导丛芽增殖的最佳培养基为1/2MS+0.6 mg·L-1NAA+1.5 mg·L-1 6-BA;诱导生根的最佳培养基为1/2MS+0.5 mg·L-1IBA+0.9 mg·L-1 NAA。
- Abstract:
- In this study,the stem segments with Dendrobium candidum node was used as the explant to study the best method of tissue culture for finding the optimal basic medium,optimal disinfection time,and studying the effect of different concentration of NAA and 6-BA to axillary-buds induction,clustered buds proliferation and rooting.The result showed that the best medium was 1/2MS,and the best sterilizing time of the explant of Dendrobium candidum with 1‰HgCl2 was 10 min.1/2MS+10 g·L-1 sucrose+0.6 mg·L-1NAA+1.5 mg·L-16-BA was used as the optimal medium of axillary bud induction.The medium of proliferation of clustered buds was 1/2MS+0.6 mg·L-1NAA+1.5 mg·L-16-BA.The optimal medium of inducing root was 1/2MS+0.5 mg·L-1IBA+0.9 mg·L-1NAA.
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备注/Memo
收稿日期:2021-10-23
基金项目:四川省干热河谷特色生物资源开发高校重点实验室开放基金项目(GR-2019-E-02)。
第一作者:夏九成(1976-),男,博士,副教授,从事植物组织培养。E-mail:xjch1818@vip.163.com。