Table 1.
Characteristics of PSB.
| Strain | NCBI Accession | D/d | P (mg L−1) | Oxygen | Oxidase | Catalase | Starch | Methyl-Red | Indole Reduction |
|---|---|---|---|---|---|---|---|---|---|
| Pseudomonas sp. | KX387357 | 3.17±0.13bc | 131.6±1.79c | + | + | + | + | + | + |
| RC01 | |||||||||
| Sinorhizobium sp. | KX387354 | 2.32±0.18d | 90.9±1.56e | + | + | + | − | + | − |
| RC02 | |||||||||
| Staphylococcus sp. | KX387355 | 2.58±0.16cd | 112.5±1.91d | + | − | + | − | + | − |
| RC03 | |||||||||
| Acinetobacter sp. | KX387359 | 4.08±0.13a | 168.5±1.27a | + | + | + | − | − | + |
| RC04 | |||||||||
| Pseudomonas sp. | KX387358 | 3.33±0.12b | 157.2±1.21b | + | + | + | − | + | + |
| RC05 | |||||||||
| Enterobacter sp. | KX387356 | 2.35±0.19d | 92.4±0.75e | + | − | + | − | − | − |
| RC06 |
Six PSB strains were identified and their 16S rRNA gene sequences were deposited in the NCBI nucleotide sequence database. D, diameter of phosphate solubilization circle around the colony; d, diameter of the colony. P, phosphate solubilization. Values are the mean and standard error (n = 5). Means marked with different letters were significantly different (TukeyHSD, P < 0.05). The results of oxygen utilization, oxidase test, catalase test, starch utilization, methyl red test and indole reduction were given. +, tested positive or used as substrate; −, tested negative or not used as substrate.