吴孔兴,黄青云,丘家军. 禽巴氏杆菌大肠杆菌融合二联弱毒菌株F4的培育[J]. 华南农业大学学报, 2002, 23(1): 67-70. DOI: 10.7671/j.issn.1001-411X.2002.01.020
    引用本文: 吴孔兴,黄青云,丘家军. 禽巴氏杆菌大肠杆菌融合二联弱毒菌株F4的培育[J]. 华南农业大学学报, 2002, 23(1): 67-70. DOI: 10.7671/j.issn.1001-411X.2002.01.020
    WU Kong xing 1,HUANG Qing yun 2,QIU Jia jun 3. Development of 2 - Combined Attenuated Strain F4 by Fusing Escherichia coli. O78 with Pasteurella multocida C48- 1[J]. Journal of South China Agricultural University, 2002, 23(1): 67-70. DOI: 10.7671/j.issn.1001-411X.2002.01.020
    Citation: WU Kong xing 1,HUANG Qing yun 2,QIU Jia jun 3. Development of 2 - Combined Attenuated Strain F4 by Fusing Escherichia coli. O78 with Pasteurella multocida C48- 1[J]. Journal of South China Agricultural University, 2002, 23(1): 67-70. DOI: 10.7671/j.issn.1001-411X.2002.01.020

    禽巴氏杆菌大肠杆菌融合二联弱毒菌株F4的培育

    Development of 2 - Combined Attenuated Strain F4 by Fusing Escherichia coli. O78 with Pasteurella multocida C48- 1

    • 摘要: 以恩诺沙星标记禽多杀性巴氏杆菌强毒株C48-1得到的耐药菌株C48-1(Enr^r,Chl^8) ,与禽大肠杆菌O78弱毒株O78(Chl^r,Enr^8) 作为亲本菌株,采用溶菌酶-EDTA法制备两亲本菌株原生质体,通过聚乙二醇(PEG)-新生磷酸钙促融系统进行两亲本菌株原生质体融合,得到16株双耐药融合菌株。选取融合菌株F4、F9进行初步的免疫试验,初步显示融合菌株F4是一株安全、具双联免疫效果的融合菌株。

       

      Abstract: This paper deals mainly with the interfamily spheroplast fusion of Pasteurella multocida C 48-1 (Enr r,Chl s) and Escherichia coli O 78 (Chl r,Enr s), and the development of 2-combined attenuated strains. Protoplast fusion was performed by mixing protoplast suspension with 400 g/L PEG4 000 and newly formed Ca 3(PO 4) 2, and 16 strains hybrid cells with two drug-resistant markers were selected. To test the immunogenicity and safety of 2 fusion attenuated strains (F 4 and F 9), Guangdong yellow chicks were vaccinated separately with F 4 and F 9.The result showed that the F 4 strain was safe and with immunogenicity attributable to the two parent bacteria.

       

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