https://www.ahs.ac.cn/images/0513-353X/images/top-banner1.jpg|#|苹果
https://www.ahs.ac.cn/images/0513-353X/images/top-banner2.jpg|#|甘蓝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner3.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner4.jpg|#|灵芝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner5.jpg|#|桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner6.jpg|#|黄瓜
https://www.ahs.ac.cn/images/0513-353X/images/top-banner7.jpg|#|蝴蝶兰
https://www.ahs.ac.cn/images/0513-353X/images/top-banner8.jpg|#|樱桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner9.jpg|#|观赏荷花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner10.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner11.jpg|#|月季
https://www.ahs.ac.cn/images/0513-353X/images/top-banner12.jpg|#|菊花

园艺学报 ›› 2023, Vol. 50 ›› Issue (5): 1141-1150.doi: 10.16420/j.issn.0513-353x.2022-0264

• 新技术新方法 • 上一篇    下一篇

梨叶片原生质体制备方法的建立及其基因瞬时转化试验

高成昱1,*, 王艺衡1,*, 靳江周1, 李涛1, 李金斗1, 周梦瑶1, 张海霞1,2, 马辉1,2, 张玉星1,2,**(), 亓宝秀1,3,**, 许建锋1,2,**   

  1. 1河北农业大学园艺学院,河北保定 071051
    2河北省梨技术创新中心,河北保定 071051
    3英国利物浦约翰摩尔大学药学和分子生物学学院,英国利物浦 L3 3AF
  • 收稿日期:2022-11-07 修回日期:2023-03-11 出版日期:2023-05-25 发布日期:2023-05-31
  • 通讯作者: **(E-mail:xjf@hebau.edu.cn
    (E-mail:b.qi@ljmu.ac.uk
    (E-mail:zhyx@hebau.edu.cn
  • 作者简介:第一联系人:

    *共同第一作者

  • 基金资助:
    广东省重点领域研发计划项目(2020B0202010003);国家重点研发计划项目(2019YFD1001404-5);河北省重点研发计划项目(21326308D-1-4);河北省现代农业产业技术体系梨创新团队项目(HBCT2018100202);大学生创新创业项目(201810086040)

Method for High Efficiency Isolation of Protoplasts from Pear Leaves and Its Utility for Gene Transient Expression

GAO Chengyu1,*, WANG Yiheng1,*, JIN Jiangzhou1, LI Tao1, LI Jindou1, ZHOU Mengyao1, ZHANG Haixia1,2, MA Hui1,2, ZHANG Yuxing1,2,**(), QI Baoxiu1,3,**, XU Jianfeng1,2,**   

  1. 1College of Horticulture,Hebei Agricultural University,Baoding,Hebei 071051,China
    2Hebei Pear Technology and Innovation Center,Baoding,Hebei 071051,China
    3School of Pharmacy and Biomolecular Sciences,Liverpool John Moores University,Byrom Street,Liverpool L3 3AF,UK
  • Received:2022-11-07 Revised:2023-03-11 Published:2023-05-25 Online:2023-05-31

摘要:

以‘新梨7号’梨叶片为材料,探究影响原生质体分离的主要因素,制备高产优质的叶肉原生质体,并进行基因瞬时转化和表达。将继代30 d的组培苗嫩叶在最佳酶解液(1.0%纤维素酶,0.1%果胶酶,0.4%离析酶,0.5 mol · L-1甘露醇,20 mmol · L-1 KCl,20 mmol · L-1 MES,10 mmol · L-1 CaCl2,1.0 g · L-1 BSA)中酶解12 h,可制备出产量为1.09 × 106 protopl · mL-1、活力为90%的原生质体。将1 ~ 2 µg · mL-1 pROK2-GFP质粒DNA通过40% PEG-4000介导转化至上述原生质体中并培养12 h,可以观察到GFP绿色荧光信号,转化率可达40%。

关键词: 梨, 叶片, 原生质体制备, 瞬时转化

Abstract:

High quality and quantity of protoplasts were succefully isolated from the mesophyll cells of leaves of tissue cultured‘Xinli 7’pear seedlings. This was achieved by optimizing the composition of the cell wall degrading enzymes and the reaction solution where the best results were obtained when the leaves of 30-days old tissue cultured pear seedlings were treated with 1.0% cellulase,0.1% pectinase and 0.4% macerozyme in a buffer containing 20 mmol · L-1 MES,0.5 mol · L-1 of D-mannitol,20 mmol · L-1 of potassium chloride,10 mmol · L-1 of calcium chloride and 1.0 g · L-1 of bovine serum albumin(pH 5.7). Approximately 1.09 × 106 protopl · mL-1 were recovered with their viability being above 90%. To test their usefulness in genetic transformation in transient expression of proteins 1-2 µg · mL-1 of pROK2- GFP plasmid DNA was transformed into the prepared protoplasts with 40% PEG-4000. After being cultured for 12 hours GFP was clearly observed in about 40% of the protoplasts,the transformation efficiency reached 40%.

Key words: pear, leaf, protoplast isolation, protoplast transient transformation

中图分类号: