华北农学报 ›› 2022, Vol. 37 ›› Issue (4): 212-219. doi: 10.7668/hbnxb.20193055

所属专题: 薯类作物 植物保护 生物技术 热点文章

• 资源环境·植物保护 • 上一篇    下一篇

马铃薯卷叶病毒与S病毒重组双CP多克隆抗体的制备

吉祥1, 宋志成1, 韦晓玲1, 杨煜2, 隋炯明1, 郭宝太1,   

  1. 1 青岛农业大学 农学院,山东省旱作农业技术重点实验室,山东 青岛 266109
    2 山东省农业科学院 蔬菜花卉研究所,山东 济南 250100
  • 收稿日期:2022-03-18 出版日期:2022-08-28
  • 通讯作者: 郭宝太
  • 作者简介:

    吉 祥(1997-),男,江苏金湖人,在读硕士,主要从事马铃薯病毒检测技术研究。

  • 基金资助:
    山东省现代农业(薯类)产业技术体系项目(SDAIT-16-03)

Preparation of Polyclonal Antibody Against Recombinant Double CP of Potato leafroll virus and Potato virus S

JI Xiang1, SONG Zhicheng1, WEI Xiaoling1, YANG Yu2, SUI Jiongming1, GUO Baotai1,   

  1. 1 College of Agronomy,Qingdao Agricultural University,Shandong Province Key Laboratory of Rainfed Agriculture Technology,Qingdao 266109,China
    2 Vegetable and Flower Research Institute, Shandong Academy of Agricultural Sciences,Ji'nan 250100,China
  • Received:2022-03-18 Published:2022-08-28
  • Contact: GUO Baotai

摘要:

为了制备出马铃薯卷叶病毒(PLRV)与S病毒(PVS)重组双CP多克隆抗体并用于PLRV与PVS这2种病毒的间接与DAS-ELISA检测,构建了PLRV与PVS融合双CP基因的原核表达载体pET22b-LRCP/SCP,用超声破碎法代替溶菌酶法裂解重组菌BL21(pET22b-LRCP/SCP)并提取菌体蛋白,用镍离子亲和层析纯化获得了分子质量为51.2 ku的高纯度的重组双CP。用该重组双CP作抗原免疫家兔获得了高效价(1∶128 k)抗血清。纯化的重组双CP多克隆抗体与PLRV或PVS阳性标准物特异性结合,与另外4种马铃薯主要病毒(PVX、PVY、PVA与PVM)无交叉反应。间接ELISA反应中,稀释度为1∶3 200的重组双CP多克隆抗体与PLRV或PVS阳性物都呈现阳性反应;在DAS-ELISA反应中,稀释度均为1∶100的重组双CP多克隆抗体及其碱性磷酸酶标记物与PLRV或PVS的阳性标准物也分别呈现阳性反应。结果表明,制备的重组双CP抗体既可用于PLRV与PVS这2种病毒的间接ELISA检测,也可用于DAS-ELISA检测。

关键词: 马铃薯卷叶病毒, S病毒, 重组双CP, 多克隆抗体, 间接ELISA, DAS-ELISA

Abstract:

The purpose was to prepare polyclonal antibody against the recombinant double CP of Potato leafroll virus (PLRV)and Potato virus S (PVS),and apply the polyclonal antibody to indirect ELISA and DAS-ELISA detections of PLRV and PVS.Prokaryotic expression vector pET22b-LRCP/SCP of the fused double CP gene of PLRV and PVS was constructed.After replacement of lysozyme treatment by ultrasonic disruption,inclusion body protein was extracted from the recombinant strain BL21(pET22b-LRCP/SCP),the target protein(recombinant double CP)was purified by nickel ion affinity chromatography and high-purity target protein of 51.2 ku was obtained.The high-purity recombinant double CP was used as antigen to immunize rabbits to prepare an antiserum with a titer of 1∶128 k.Specific reactions were respectively observed between the purified polyclonal antibody (IgG) against the recombinant double CP and the positive standard of PLRV or PVS and no cross-reaction was found between the purified IgG and other four potato major viruses (PVX, PVY, PVA and PVM). The purified IgG against the recombinant CP with the diluted concentration of 1∶3 200 still positively reacted with PLRV or PVS in indirect ELISA detection.The purified IgG and the alkaline phosphatase-conjugated IgG both with the diluted contraction of 1∶100 also positively reacted with PLRV or PVS positive standard in DAS-ELISA detection.The results showed that one type of the prepared IgG against the recombinant double CP could detect two viruses of PLRV and PVS by DAS-ELISA or indirect ELISA.

Key words: Potato leafroll virus, Potato virus S, Recombinant double CP, Polyclonal antibody, Indirect ELISA, DAS-ELISA

引用本文

吉祥, 宋志成, 韦晓玲, 杨煜, 隋炯明, 郭宝太. 马铃薯卷叶病毒与S病毒重组双CP多克隆抗体的制备[J]. 华北农学报, 2022, 37(4): 212-219. doi: 10.7668/hbnxb.20193055.

JI Xiang, SONG Zhicheng, WEI Xiaoling, YANG Yu, SUI Jiongming, GUO Baotai. Preparation of Polyclonal Antibody Against Recombinant Double CP of Potato leafroll virus and Potato virus S[J]. Acta Agriculturae Boreali-Sinica, 2022, 37(4): 212-219. doi: 10.7668/hbnxb.20193055.

使用本文

0
    /   /   推荐 /   导出引用

链接本文: http://www.hbnxb.net/CN/10.7668/hbnxb.20193055

               http://www.hbnxb.net/CN/Y2022/V37/I4/212