Table 2.
Screening of activities associated with plant growth promotion or biocontrol in the selected rhizospheric bacteria.
| Isolate IDa | Bacteria | Siderophoreb | Chitinase | β-endo-1, 4-glucanase | Protease | Lipase | Pi ISc | IAA µg mL−1 |
Biofilm |
|---|---|---|---|---|---|---|---|---|---|
| BsiDA2 | Bacillus siamensis | + | – | – | – | – | 1.22 | 0.04 | Md |
| BsTA16 | B. subtilis | +++ | – | – | – | – | – | – | M |
| BaMA26 | B. amyloliquefaciens | +++ | – | + | + | – | – | – | M |
| AcDB3 | Acinetobacter calcoaceticus | ++ | – | – | – | – | – | 1.25 | M |
| BtMB9 | B. thuringiensis | +++ | – | – | – | – | 1.53 | – | M |
aID: identification. All enzymatic tests were recorded as either positive (+) or negative (-). For glucanase and protease activities, (+) indicates positive results based on the presence of clear halos surrounding the bacterial colonies. bFor siderophores, (+) = <2 mm, (++) = 2.01 to 4 mm, and (+++) = >4 mm halos surrounding the bacterial colonies. cPi IS: index of phosphate solubilization. dM indicates a moderate capability of biofilm formation (0.1 ≤ OD600 < 1).