Skip to main content
Fig. 4 | BMC Veterinary Research

Fig. 4

From: Antimicrobial and antibiofilm potentials of cinnamon oil and silver nanoparticles against Streptococcus agalactiae isolated from bovine mastitis: new avenues for countering resistance

Fig. 4

Comparative measurement of the transcription (cDNA abundance) of biofilm associated genes (pilA and pilB) and their regulator (rogB) in strong biofilm producing S. agalactia isolates (codes No. 3 and 10; Table 2) after treatment with MBIC50 values of cinnamon oil (2, 4 μg/mL), silver nanoparticles (32, 64 μg/mL) and their combination (1/2, 8/16 μg/mL), respectively. The data are presented as fold changes in gene expressions normalized to an endogenous housekeeping gene (gyrA) and relative to the untreated control isolate, which was assigned a value of 1.Error bars indicate standard deviations. Double asterisks (**) represent the means significantly different from control untreated isolate (P < 0.05). Pearson’s correlation indicates the positive correlations of rogB transcript levels and biofilm biosynthesis genes at r ≥ 0.3

Back to article page