Table 4.
Antimicrobial activity expressed as a relative percentage of the diameter of the inhibition zone (mm) of corn germplasm using the Kirby–Bauer method.
| Germplasm | Gram-positive bacteria | Gram-negative bacteria | ||
|---|---|---|---|---|
| S. aureus | B. subtilis | E. coli | P. aeruginosa | |
| RPDIZ (%) | RPDIZ (%) | RPDIZ (%) | RPDIZ (%) | |
| CUNA32 | 43.18 ± 3.90ab | 75.67 ± 8.94a | — | — |
| CUNA38 | 46.47 ± 1.49ab | 70.19 ± 13.02a | — | — |
| BTEC07 | 52.98 ± 13.64ab | — | — | — |
| BTEC11 | 46.77 ± 0.71ab | — | — | — |
| UCR05 | 60.29 ± 3.04a | — | — | — |
| CUNA11 | 38.92 ± 6.67ab | — | 36.34 ± 17.30 | — |
| CUNA19 | 46.93 ± 13.56ab | — | — | — |
| CUNA24 | 34.42 ± 3.56b | — | — | — |
| CUNA35 | — | 76.26 ± 7.09a | — | — |
| BTEC06 | — | — | — | 43.71 ± 5.29a |
| CUNA04 | — | — | — | 43.35 ± 2.76a |
| CUNA44 | — | — | — | 30.92 ± 0.15b |
|
| ||||
| Control (+) | 100% | 100% | 100% | 100% |
|
| ||||
| Control (−) | 0% | 0% | 0% | 0% |
Data are expressed as mean ± SD. Different letters in the “Tukey HSD” columns indicate significant differences in each column according to the Tukey Test (p < 0.05). Tukey HSD: Honest Significant Difference. SD: standard deviation.