Table 4.
Antibiotic susceptibility pattern of different Gram-positive bacterial isolates. For analysis, three set of plates for each strain or antibiotic were incubated at 37 °C for 24 h.
| Strains | Antibiotics | |||||||
|---|---|---|---|---|---|---|---|---|
| AK | AX | CL | CN | NA | TOB | TE | C | |
| Zones of Inhibition (mm) * | ||||||||
| Bacillus cereus BPc-4 | 18 (S) | 10 (R) | 8 (R) | 14 (I) | 14 (I) | 15 (S) | 22 (S) | 10 (R) |
| Staphylococcus equorum BPt-5 | 26 (S) | 24 (R) | 11 (R) | 20 (S) | 0 (R) | 16 (S) | 16 (I) | 26 (S) |
| S. aureus BPb-5 | 18 (S) | 8 (R) | 18 (S) | 18 (S) | 14 (I) | 16 (S) | 26 (S) | 24 (S) |
| B. anthracis EMc-3 | 20 (S) | 16 (I) | 14 (I) | 24 (S) | 16 (I) | 24 (S) | 24 (S) | 24 (S) |
| B. cereus Eb-9 | 16 (S) | 20 (S) | 0 (R) | 22 (S) | 20 (S) | 12 (R) | 18 (I) | 24 (S) |
| B. thuringiensis Eb-10 | 18 (S) | 20 (S) | 0 (R) | 14 (I) | 0 (R) | 12 (R) | 20 (S) | 12 (R) |
| S. xylosus Lt-41 | 20 (S) | 24 (R) | 22 (S) | 20 (S) | 0 (R) | 18 (S) | 22 (S) | 20 (S) |
| S. warneri Lt-73 | 20 (S) | 0 (R) | 0 (R) | 12 (R) | 0 (R) | 10 (R) | 16 (I) | 24 (S) |
| Arthrobacter nicotianae Lb-41 | 22 (S) | 26 (S) | 16 (S) | 16 (S) | 0 (R) | 14 (I) | 20 (S) | 30 (S) |
| B. subtilis Lb-61 | 28 (S) | 20 (S) | 14 (I) | 30 (S) | 12 (R) | 22 (S) | 26 (S) | 14 (I) |
| B. cereus LCw-22 | 16 (I) | 14 (I) | 20 (S) | 16 (S) | 10 (R) | 16 (S) | 24 (S) | 18 (S) |
| S. arlettae MCb-3 | 32 (S) | 14 (I) | 22 (S) | 28 (S) | 0 (R) | 22 (S) | 8 (R) | 24 (S) |
| Exiguobacterium mexicanum MCb-4 | 22 (S) | 38 (S) | 28 (S) | 20 (S) | 18 (I) | 16 (S) | 26 (S) | 24 (S) |
| B. cereus MCb-6 | 20 (S) | 14 (I) | 18 (S) | 16 (S) | 0 (R) | 14 (I) | 24 (S) | 16 (I) |
| B. subtilis MCb-8 | 16 (I) | 0 (R) | 0 (R) | 10 (R) | 12 (R) | 10 (R) | 16 (I) | 10 (R) |
| S. xylosus MSt-1 | 24 (S) | 22 (R) | 10 (R) | 20 (S) | 0 (R) | 20 (S) | 20 (S) | 24 (S) |
| S. gallinarum MSt-3 | 14 (I) | 12 (R) | 16 (S) | 14 (I) | 0 (R) | 10 (R) | 20 (S) | 18 (S) |
| B. cereus MSt-7 | 26 (S) | 14 (I) | 32 (S) | 24 (S) | 18 (I) | 18 (S) | 14 (R) | 20 (S) |
| B. cereus MSt-8 | 18 (S) | 8 (R) | 14 (I) | 12 (R) | 16 (I) | 18 (S) | 24 (S) | 28 (S) |
| B. cereus MSb-3 | 34 (S) | 42 (S) | 24 (S) | 30 (S) | 12 (R) | 18 (S) | 24 (S) | 30 (S) |
| B. anthracis MSb-4 | 14 (I) | 16 (I) | 12 (I) | 14 (I) | 14 (I) | 20 (S) | 18 (I) | 20 (S) |
| S. warneri MSc-5 | 24 (S) | 40 (S) | 38 (S) | 30 (S) | 14 (I) | 24 (S) | 28 (S) | 24 (S) |
| B. cereus PCt-1 | 18 (S) | 0 (R) | 0 (R) | 14 (I) | 16 (I) | 12 (R) | 16 (I) | 16 (I) |
| S. xylosus Xt-1 | 20 (S) | 20 (R) | 20 (S) | 18 (S) | 0 (R) | 18 (S) | 22 (S) | 20 (S) |
| Lysinibacillus fusiformis Xt-6 | 16 (I) | 0 (R) | 0 (R) | 14 (I) | 14 (I) | 12 (R) | 18 (I) | 20 (S) |
| B. anthracis Xb-6 | 22 (S) | 12 (R) | 14 (I) | 16 (S) | 12 (R) | 16 (S) | 20 (S) | 20 (S) |
| L. fusiformis Xc-7 | 34 (S) | 0 (R) | 0 (R) | 25 (S) | 0 (R) | 8 (R) | 32 (S) | 40 (S) |
* Letters in parenthesis indicate the level of sensitivity of the respective antibiotics. Abbreviations: R = resistant, I = intermediate, S = sensitive. Antibiotics: AK = Amikacin; AX = Amoxicillin; CL = Cephalexin; CN = Gentamicin; NA = Nalidixic acid; TOB = Tobramycin; TE = Tetracycline; C = Chloramphenicol.