欢迎访问《中国农学通报》,

中国农学通报 ›› 2020, Vol. 36 ›› Issue (19): 80-84.doi: 10.11924/j.issn.1000-6850.casb20190500181

• 林学·园艺·园林 • 上一篇    下一篇

珍稀中药材白芨组培快繁体系的建立

马玲1, 仇文婷1, 王彦军1, 康天兰2, 栗孟飞3()   

  1. 1甘肃省甘南藏族自治州农业科学研究所,甘肃合作 747000
    2甘肃省经济作物技术推广站,兰州 730030
    3甘肃省干旱生境作物学重点实验室/甘肃农业大学生命科学技术学院,兰州 730070
  • 收稿日期:2019-05-22 修回日期:2020-01-03 出版日期:2020-07-05 发布日期:2020-07-08
  • 通讯作者: 栗孟飞
  • 作者简介:马玲,女,1984年出生,甘肃甘南藏族自治州人,农艺师,本科,研究方向为经济作物栽培与利用。Tel:0941-8213380,E-mail:wsw0412@126.com。
  • 基金资助:
    甘肃省农业科技创新与推广项目“甘肃珍稀濒危中药材组培快繁技术研发与示范”(GNCX-2016-12)

Establishment of Tissue Culture and Rapid Propagation System for Rare Medicinal Bletilla striata

Ma Ling1, Qiu Wenting1, Wang Yanjun1, Kang Tianlan2, Li Mengfei3()   

  1. 1Institute of Agricultural Sciences, Gannan Tibetan Autonomous Prefecture, Gansu Province, Hezuo Gansu 747000
    2Station of Industrial Crop Promotion of Gansu Province, Lanzhou 730030
    3Gansu Provincial Key Laboratory of Arid Land Crop Science/ College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070
  • Received:2019-05-22 Revised:2020-01-03 Online:2020-07-05 Published:2020-07-08
  • Contact: Li Mengfei

摘要:

为建立珍稀中药材白芨的组培快繁体系,以成熟种子为外植体,筛选适于萌发生长的蔗糖、外源激素(6-BA、IBA、IAA和NAA)和活性炭的浓度、光照时间以及炼苗基质配比。结果发现:在MS+4 g/L琼脂+20 g/L蔗糖+光照(200 lx) 24 h/d的基础上,培养7天后种子均可发芽;添加1.5 mg/L 6-BA+0.5 mg/L NAA+1.0 g/L活性炭,叶片数达5枚;添加1.5 mg/L IBA+1.0 g/L活性炭,根数和根长分别达到3条和4 cm;蛭石:泥炭=1:2的基质配比下,炼苗成活率达100%。该研究结果可为白芨的大规模种植、相关药物生产以及野生资源保护等方面提供理论基础与技术支撑。

关键词: 白芨, 组培快繁, 外源激素, 营养基质, 炼苗

Abstract:

To establish the system of tissue culture for Bletilla striata, an experiment was conducted to screen the concentrations of sucrose, exogenous hormones (6-BA, IBA, IAA and NAA) and activated carbon (AC), light duration and hardening-seedling matrix for seed germination and growth taking mature seeds as original explants. The results showed that the seeds germinated after 7 d in the medium MS+4 g/L agar+20 g/L sucrose+ light (200 lx) 24 h/d; the number of cotyledon reached 5 with supplemental 1.5 mg/L 6-BA+0.5 mg/L NAA+1.0 g/L AC; the root number and length respectively reached 3 and 4 cm with supplemental 1.5 mg/L IBA+1.0 g/L AC; and the seedling survival rate reached 100% under the matrix vermiculite: peat (1:2). These findings would provide a theoretical basis and technical support for large-scale cultivation, pharmaceutical production and wild resource protection of Bletilla striata.

Key words: Bletilla striata, tissue culture and rapid propagation, exogenous hormone, nutrition matrix, hardening-seedling

中图分类号: