Antimicrobial Effects and Resistant Regulation of Magnolol and Honokiol on Methicillin-Resistant Staphylococcus aureus

Figure 5

RT-PCR analysis of the level of mecA, mecI, mecR1, femA, and femB mRNA in MRSA (ATCC 33591) strain treated with the indicated concentrations of the magnolol (a) and honokiol (b). GAPDH was employed as an internal control and oxacillin 50 μg/mL (OX 50) was used in this study. MRSA strain was grown in tryptic soy broth for 24 hr at 34°C.

(a)

(b)