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 ›› 2010, Vol. 37 ›› Issue (10): 1598-1604.

• 蔬菜 • 上一篇    下一篇

辣椒脉斑驳病毒CP基因的原核表达及其抗血清的制备

吴育鹏1,2,王健华1,2,冯团诚1,张雨良1,王小明1,2,刘志昕1,*   

  1. (1中国热带农业科学院热带生物技术研究所,农业部热带作物生物技术重点开放实验室,海口 571101;2海南大学环境与植物保护学院,海南儋州 570228)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-10-25 发布日期:2010-10-25
  • 通讯作者: 刘志昕

Expression of Chilli veinal mottle virus Coat Protein and Preparation of a Virus-specific Antiserum

WU Yu-peng1,2,WANG Jian-hua1,2,FENG Tuan-cheng1,ZHANG Yu-liang1,WANG Xiao-ming1,2,and LIU Zhi-xin1,*   

  1. (1Key Laboratory of Tropical Crop Biotechnology of Ministry of Agriculture,Institute of Tropical Bioscience and Biotechnology,Chinese Academy of Tropical Agricultural Sciences,Haikou 571101,China;2College of Environment and Plant Protection,Hainan University,Danzhou,Hainan 570228,China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-10-25 Published:2010-10-25
  • Contact: LIU Zhi-xin

摘要: 采用RT-PCR方法克隆了辣椒脉斑驳病毒文昌分离物(ChiVMV-WC)的CP基因,并将其连接到原核表达载体pET-30b(+)上,克隆测序以确定其阅读编码框的正确性,然后将获得的重组质粒pET30b-ChiVMV CP转化大肠杆菌Rosetta(DE3)后,用IPTG进行诱导表达。SDS-PAGE分析结果表明,CP基因在大肠杆菌中获得了高效表达,获得的融合蛋白分子量约为38 kD。用Ni2+-NTA 琼脂糖亲和层析纯化的融合蛋白免疫兔子并获得抗血清。Western blot检测结果表明,抗血清与诱导表达的ChiVMV-WC编码CP蛋白发生特异性反应。间接酶联免疫吸附法(ID-ELISA)检测抗血清效价为1/106。通过对田间20个样品的ID-ELISA检测,证实了所制备的抗血清与ChiVMV病叶具有良好的反应特异性。

关键词: 辣椒, 辣椒脉斑驳病毒, 外壳蛋白, 原核表达, 抗血清

Abstract: The coat protein(CP)gene of Chilli veinal mottle virus Wenchang isolate(ChiVMV-WC)was amplified by RT-PCR,and cloned into the expression vectors pET-30b(+). After the reading frame is confirmed by sequencing, the recombinant plasmid pET30b-ChiVMV CP was transferred into E. coli Rosetta(DE3)and the expression of the recombinant CP protein was then induced by IPTG. SDS-PAGE analysis showed a high level expression of the recombinant CP of about 38 kD. The fusion protein was then purified with Ni2+-NTA agarose affinity chromatography, and used to immune rabbits for antiserum preparation. Western blot analysis confirmed that the antiserum reacted strongly and specifically to the CP of ChiVMV-WC. The optimal titer of the antiserum in indirect enzyme-linked immunosorbent assay (ID-ELISA)was determined to be 1/106. ID-ELISA testing of a number of field samples demonstrated the sensitivity and specificity of the antiserum described in this paper.

Key words: pepper, Chilli veina mottle virus, CP, prokaryotic expression, antiserum

中图分类号: