Table 4.
Indole acetic acid (IAA) production by bacterial strains in the presence and absence of L-tryptophan.
| Bacterial Strains | IAA Production without L-Tryptophan (µg mL−1) |
IAA Production with L-Tryptophan (µg mL−1) |
|---|---|---|
| SM2 | 5.12 ± 1.91 ab | 17.89 ± 2.51 c |
| SM4 | 5.76 ± 1.61 a | 26.87 ± 3.14 a |
| SM5 | 4.96 ± 0.43 ab | 22.39 ± 1.55 b |
| SM7 | 3.60 ± 1.66 bcd | 13.94 ± 1.40 de |
| MS1 | 2.37 ± 1.71 d | 7.38 ± 0.36 f |
| MS2 | 2.92 ± 1.86 cd | 12.48 ± 1.75 e |
| MS4 | 4.07 ± 1.09 bc | 15.87 ± 2.90 cd |
| MS7 | 5.02 ± 0.55 ab | 23.74 ± 2.18 b |
| CVC | 1.6539 | 2.5692 |
CVC stands for critical value for comparison at p ≤ 0.05; The means sharing the same alphabet letters were non-significant from each other.