Research Article
Bacterial Endo-Symbiont Inhabiting Tridax procumbens L. and Their Antimicrobial Potential
Table 1
Antimicrobial activity of crude ethyl acetate extract against test pathogens.
| | Sl no. | Test pathogens | Ethyl acetate extract | Standard | |
Zone of inhibition (mm) |
| | I | Human pathogenic bacteria | | | | | Bacillus subtilis (MTCC 121) | 13 ± 1.5 | 23 ± 1.5 (G) | | | Escherichia coli (MTCC 7410) | 12 ± 1.5 | 26 ± 1.5 (G) | | | Salmonella typhi (MTCC 733) | 18 ± 1.5 | 23 ± 1.5 (G) | | | Shigella flexneri (MTCC 731) | 27 ± 1.5 | 32 ± 1.5 (G) | | | Staphylococcus aureus (MTCC 7443) | 23 ± 1.5 | 31 ± 1.5 (G) | | | Staphylococcus epidermidis (MTCC 435) | 14 ± 1.5 | 20 ± 1.5 (G) |
| | II | Plant pathogenic bacteria | | | | | Xanthomonas campestris (MTCC 7908) | 10 ± 1.5 | 24 ± 1.5 (T) |
| | III | Human pathogenic fungi | | | | | Candida albicans (MTCC 183) | 16 ± 1.5 | 23 ± 1.5 (M) |
| | IV | Plant pathogenic fungi | | | | | Fusarium verticillioides | 14 ± 1.5 | 24 ± 1.5 (B) | | | Aspergillus niger | 10 ± 1.5 | 19 ± 1.5 (B) | | | Aspergillus flavus | 13 ± 1.5 | 22 ± 1.5 (B) |
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Values are zone of inhibition in mean ± standard error.
Note. G = gentamicin, T = tetracycline, M = miconazole, and B = Bavistin.
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