Table 3 Antimicrobial activity of PTS and PTSO against phytopathogenic bacteria by disk-diffusion method, expressed as the average diameter ± standard deviation of inhibition zone (mm)
Species | PTS (µg/µl) | PTSO (µg/µl) | ||||
|---|---|---|---|---|---|---|
5 | 10 | 25 | 5 | 10 | 25 | |
E. persicina | 18.0 ± 0.71 | 23.0 ± 1.87 | 29.5 ± 1.12 | 17.5 ± 2.06 | 20.3 ± 1.79 | 29.0 ± 0.71 |
X. campestris | 31.5 ± 1.12 | 36.3 ± 1.09 | 47.3 ± 1.48 | 41.0 ± 1.58 | 48.5 ± 2.06 | 61.3 ± 1.48 |
P. savastanoi | 12.8 ± 1.30 | 22.0 ± 1.58 | 25.3 ± 1.48 | 25.5 ± 2.06 | 38.0 ± 1.87 | 45.5 ± 1.66 |
P. syringae | 11.3 ± 1.09 | 11.8 ± 1.48 | 14.5 ± 1.12 | 19.3 ± 1.09 | 19.5 ± 1.50 | 29.8 ± 1.09 |
C. m. michiganensis | 38.0 ± 1.58 | 46.3 ± 0.83 | 59.3 ± 1.09 | 51.5 ± 1.12 | 56.0 ± 1.58 | 75.0 ± 1.41 |
A. tumefaciens | 27.5 ± 1.12 | 36.5 ± 2.18 | 48.8 ± 2.38 | 54.3 ± 0.83 | 64.0 ± 1.58 | 75.3 ± 2.68 |