ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2018, Vol. 49 ›› Issue (2): 432-438.doi: 10.11843/j.issn.0366-6964.2018.02.023

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The Antimicrobial and Anti-hemolysis Effects of Total Magnolol on Staphylococcus aureus

LIU Gui-lan1,2, ZHOU Yong-lin1, LI Wen-hua1, XIE Ling-ling2, LIU Ai-ling2, DENG Xu-ming1*   

  1. 1. College of Veterinary Medicine, Jilin University, Changchun 130062, China;
    2. Tianjin Ringpu Bio-technology Co., Ltd, Tianjin 300300, China
  • Received:2017-07-20 Online:2018-02-23 Published:2018-02-23

Abstract:

In order to investigate the antimicrobial activity and anti-infective activity of Total Magnolol on mastitis-related pathogens (mainly Staphylococcus aureus), a broth microdilution method was employed to determine the minimal inhibitory concentrations (MIC) of the Total Magnolol against S. aureus strains. Hemolysis assay, Western blot analysis, real-time RT-PCR assay and cytotoxic assay were further performed to evaluate the influence of this compound on S. aureus virulence. The results showed that the minimal inhibitory concentration of Total Magnolol against S. aureus were 8-16 μg·mL-1. Furthermore, treatment with Subinhibitory concentration of Total Magnolol could inhibit the expression of α-hemolysin, reduce the pathogenicity of Staphylococcus aureus, and significantly alleviate the injury induced by α-hemolysin of Staphylococcus aureus.

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