Table 4 Organic acid production by fluorescent Pseudomonas during Mussoorie rock phosphate solubilization.
|  |  |  | Organic acid (μg/ml) |  | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Strain | P-liberated (μg/ml) | Final pH | Oxalic | Gluconic | 2-KGA | Lactic | Succinic | Formic | Citric | Malic | Total organic acids (μg/ml) |
P. trivialis | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
BIHB 728 | 11.0 ± 0.3 | 3.52 | 15.1 ± 1.4 | 8443.3 ± 6.0 | ND | 44.9 ± 1.7 | ND | ND | ND | ND | 8503.3 |
BIHB 736 | 13.1 ± 0.1 | 3.52 | 15.6 ± 1.4 | 9314.3 ± 7.4 | ND | ND | ND | ND | ND | ND | 9329.9 |
BIHB 745 | 5.8 ± 0.3 | 3.63 | 14.8 ± 1.4 | 9394.0 ± 8.3 | ND | ND | ND | 84.0 ± 3.1 | ND | 930.0 ± 4.2 | 10422.8 |
BIHB 747 | 12.0 ± 0.2 | 3.49 | 16.3 ± 0.7 | 10016.7 ± 4.4 | ND | 36.8 ± 2.0 | ND | 70.4 ± 2.7 | ND | ND | 10140.2 |
BIHB 749 | 8.0 ± 0.04 | 3.59 | 15.8 ± 0.7 | 12027.0 ± 5.7 | ND | ND | ND | ND | ND | ND | 12042.8 |
BIHB 750 | 4.8 ± 0.4 | 3.67 | 11.7 ± 0.9 | 8460.0 ± 5.8 | ND | ND | ND | ND | ND | 32.3 ± 2.1 | 8504.0 |
BIHB 757 | 9.0 ± 0.04 | 3.63 | 10.6 ± 1.0 | 9460.0 ± 5.5 | ND | 39.4 ± 2.8 | ND | ND | ND | ND | 9510.0 |
BIHB 759 | 11.0 ± 0.2 | 3.52 | 16.7 ± 1.3 | 13854.0 ± 4.9 | ND | 39.7 ± 1.3 | ND | ND | ND | ND | 13910.4 |
BIHB 763 | 12.9 ± 0.02 | 3.50 | 18.2 ± 0.5 | 13444.0 ± 5.5 | ND | ND | ND | 87.7 ± 3.0 | ND | ND | 13549.9 |
BIHB 769 | 6.1 ± 0.4 | 3.65 | 16.4 ± 0.7 | 11633.7 ± 5.4 | ND | 40.5 ± 2.6 | ND | ND | ND | ND | 11690.6 |
P. poae | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
BIHB 730 | 4.0 ± 0.06 | 4.62 | 12.5 ± 1.3 | 7871.0 ± 8.5 | 19.9 ± 1.4 | 37.8 ± 2.1 | ND | ND | ND | ND | 7941.2 |
BIHB 752 | 6.0 ± 0.03 | 3.62 | 19.6 ± 2.1 | 15727.0 ± 5.9 | ND | ND | ND | ND | ND | 293.0 ± 4.7 | 16039.6 |
BIHB 808 | 8.6 ± 0.6 | 3.53 | 15.3 ± 1.2 | 13749.7 ± 3.4 | ND | ND | ND | ND | ND | ND | 13765.0 |
P. fluorescens | |||||||||||
BIHB 740 | 3.0 ± 0.1 | 5.90 | 14.3 ± 0.9 | 8051.0 ± 6.1 | 468.0 ± 3.1 | ND | ND | 114.4 ± 4.9 | ND | 183.2 ± 4.9 | 8830.9 |
Pseudomonas spp. | |||||||||||
BIHB 751 | 2.4 ± 0.1 | 3.89 | 11.7 ± 0.4 | 7076.3 ± 4.6 | 126.3 ± 7.2 | ND | ND | ND | ND | 2802.0 ± 4.7 | 10016.3 |
BIHB 756 | 12.7 ± 0.4 | 3.53 | 14.7 ± 1.2 | 9120.0 ± 6.4 | 153.0 ± 3.1 | ND | 142.0 ± 3.5 | ND | ND | 264.0 ± 4.6 | 9693.7 |
BIHB 804 | 8.1 ± 0.3 | 3.55 | 39.3 ± 1.5 | 8997.0 ± 7.2 | 18.4 ± 0.9 | 39.6 ± 1.1 | ND | ND | ND | 34.1 ± 2.9 | 9128.4 |
BIHB 811 | 2.9 ± 0.03 | 4.00 | 42.0 ± 1.7 | 10007.0 ± 3.8 | 234.3 ± 2.0 | 50.8 ± 2.3 | 349.7 ± 2.7 | ND | 22.3 ± 2.2 | 36.1 ± 2.8 | 10742.2 |
BIHB 813 | 2.2 ± 0.4 | 4.05 | 14.2 ± 0.7 | 10396.0 ± 5.6 | ND | 40.5 ± 2.0 | 136.0 ± 2.1 | ND | ND | ND | 10586.7 |
Total organic acids (μg/ml) | 334.8 | 197042.0 | 1019.9 | 370.0 | 627.7 | 356.5 | 22.3 | 4574.7 | 204347.9 | ||