Table 1 The physiological and biochemical profiles of the VNUA74 strain.

Temperature range for growth (^o C)

20–40 (optimum 25–37)

pH range for growth

4–12 (optimum 6–12)

NaCl tolerance for growth (%)

0–7 (optimum 0–5)

IAA production

51.24 ± 1.50 µg mL^− 1

Siderophore production index

4.22 ± 0.05

Phosphate solubilization index

2.43 ± 0.39

Zinc solubilization index

3.90 ± 0.09

Potassium solubilization

-

Chitinase

+

Cellulase

+

Xylanase

+

Protease

+

Pectinase

+

Amylase

+

Catalase

+

Indole production

-

H₂S production

+

Citrate utilization

+

Nitrate reduction

-

Gelatin liquefaction

+

Urea utilization

+

MR test

-

VP test

-