植物学报 ›› 2017, Vol. 52 ›› Issue (6): 774-782.DOI: 10.11983/CBB16171

• 技术方法 • 上一篇    下一篇

雷公藤悬浮细胞原生质体的制备及瞬时转化体系的建立

胡添源1, 王睿1, 陈上1, 马宝伟1, 高伟1,2,*(), 黄璐琦3   

  1. 1首都医科大学中医药学院, 北京 100069
    2中医络病研究北京市重点实验室, 北京 100069
    3中国中医科学院中药资源中心, 道地药材国家重点实验室培育基地, 北京 100700
  • 收稿日期:2016-08-21 接受日期:2017-01-10 出版日期:2017-11-01 发布日期:2018-02-22
  • 通讯作者: 高伟
  • 基金资助:
    国家自然科学基金优秀青年科学基金(No.81422053)、国家杰出青年科学基金(No.81325023)和“十三五”时期北京市属高校高水平教师队伍建设支持计划(No.CIT&TCD20170324)

Protoplast Isolation and Establishment of Transient Expression System of Tripterygium wilfordii Suspension Culture Cells

Hu Tianyuan1, Wang Rui1, Chen Shang1, Ma Baowei1, Gao Wei1,2,*(), Huang Luqi3   

  1. 1School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
    2Key Laboratory of Collateral Diseases, Beijing 100069, China
    3Key Laboratory of Dao-di Herbs, National Resources Center for Chinese Materia Medica, China Academy of Chinese Medicinal Sciences, Beijing 100700, China
  • Received:2016-08-21 Accepted:2017-01-10 Online:2017-11-01 Published:2018-02-22
  • Contact: Gao Wei

摘要: 为探索药用植物雷公藤(Tripterygium wilfordii)悬浮细胞原生质体提取的最优条件, 并建立雷公藤原生质体瞬时转化体系, 以雷公藤悬浮细胞为材料, 对酶解液配比、酶解时间、甘露醇浓度及处理转速进行考察。用PEG介导的瞬时转化法将外源基因转化到雷公藤原生质体中。结果表明, 以雷公藤悬浮细胞为材料提取原生质体的最佳条件是酶液配比为2.0%纤维素酶+0.5%果胶酶+0.5%离析酶, 甘露醇浓度为0.6 mol?L-1, 酶解10小时, 处理转速为67×g; 用PEG介导法将含有编码GFP的植物表达载体转化雷公藤悬浮细胞原生质体, 激光共聚焦扫描显微镜下细胞显示绿色荧光。通过实验筛选得到雷公藤悬浮细胞原生质体的最佳提取条件, 建立了雷公藤悬浮细胞原生质体的瞬时转化体系, 为进一步开展雷公藤功能基因及合成生物学研究奠定了基础。

关键词: 原生质体, 悬浮细胞, 瞬时转化, 雷公藤

Abstract: We aimed to find the best protoplast extraction conditions with Tripterygium wilfordii suspension culture cells and establish an efficient transient expression system. Key factors in protoplast isolation, such as concentration of enzymes, time of enzymolysis, osmotic pressure and centrifugation speed, were studied. PEG mediation was used to transfer the GFP gene into protoplasts. The optimal extraction system was with cellulose R-10 2.0%, pectinase Y-23 0.5%, macerozyme R-10 0.5%, 0.6 mol?L-1 mannitol. The suitable enzymolysis time was 10 h, and the optimal centrifugation speed was 67 ×g. Under LSCM, the protoplast emitted green fluorescence after transforming the plasmid encoding green fluorescent protein into it. We revealed the optional conditions to isolate protoplast of T. wilfordii suspension cells and established the transient transformation system; it laid a foundation for further study on the functional genes and syn- thetic biology of T. wilfordii.

Key words: protoplast, suspension culture cells, transient transformation, Tripterygium wilfordii