Characteristics of Mycoplasma hyopneumoniae Strain ES-2 Isolated From Chinese Native Black Pig Lungs

文献类型： 外文期刊

第一作者： Zong, Bingbing

作者： Zong, Bingbing;Zhang, Yanyan;Zhu, Yongwei;Wang, Xiangru;Chen, Huanchun;Tan, Chen;Liu, Manli;Wang, Xiangru;Chen, Huanchun;Tan, Chen;Wang, Xiangru;Chen, Huanchun;Tan, Chen;Wang, Xiangru;Chen, Huanchun;Tan, Chen

作者机构：

关键词： Mycoplasma hyopneumoniae; Chinese native black pig; swine enzootic pneumonia; ES-2 strain; characteristics

期刊名称：FRONTIERS IN VETERINARY SCIENCE （ 影响因子：3.471； 五年影响因子：3.821 ）

ISSN：

年卷期： 2022 年 9 卷

页码：

收录情况： SCI

摘要： Mycoplasma hyopneumoniae is the primary pathogen of swine enzootic pneumonia and causes great economic losses to the swine industry worldwide. In China, M. hyopneumoniae seriously hinders the healthy development of the native black pigs. To prevent and treat porcine respiratory disease caused by M. hyopneumoniae, the characteristics of M. hyopneumoniae strain ES-2 isolated from Chinese native black pig lungs with gross lesions at post-mortem were studied for the first time in this study. Strain ES-2 cell was round or oval cells and most sensitive to kanamycin. The diameters of most strain ES-2 cells ranged from 0.4 to 1.0 mu m with maximum viability of 10(10) CCU/ml. Experimental challenge of animals with strain ES-2 showed respiratory disease could be reproduced, with pneumonic lung lesions evident. Comparative genomics analysis identified that 2 genes are specific to pathogenic M. hyopneumoniae strains, which may be predicted to be a molecular marker. These findings suggest that the study on the characteristics of M. hyopneumoniae strain ES-2 will guide the rapid and accurate drug use in the clinic, and develop a theoretical foundation for accurately diagnosing and treating the infection caused by pathogenic M. hyopneumoniae.

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