Article
Efficient construction of Haemophilus parasuis mutants based on natural transformation.
Canadian journal of veterinary research = Revue canadienne de recherche veterinaire - 1 Oct 2016
Li Junxing, Yuan Xiufang, Xu Lihua, Kang Lei, Jiang Jun, Wang Yicheng
Abstract excerpt
Studies on virulence factors and pathogenecity of Haemophilus parasuis have long been hindered by a lack of a consistent system for genetic manipulation. In this study, competence was induced by transferring H. parasuis from rich medium to starvation medium media-IV (M-IV) and iscR gene deficient mutants of H. parasuis were generated efficiently. Transformation frequency varied from 4.1 × 10-5 to 1.1 × 10-8 when...
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