Table 3 Organic acid production by fluorescent Pseudomonas during Udaipur 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 | 8.7 ± 0.04 | 3.78 | 14.3 ± 1.5 | 6676.7 ± 6.0 | ND | 52.8 ± 1.3 | ND | ND | ND | ND | 6743.8 |
BIHB 736 | 5.6 ± 0.10 | 3.79 | 10.6 ± 1.5 | 7116.0 ± 5.9 | ND | ND | ND | ND | ND | ND | 7126.6 |
BIHB 745 | 8.3 ± 0.30 | 3.78 | 11.1 ± 0.9 | 8190.0 ± 5.8 | ND | ND | ND | 35.1 ± 3.1 | ND | 53.4 ± 3.7 | 8289.6 |
BIHB 747 | 4.4 ± 0.01 | 3.71 | 10.3 ± 1.1 | 6962.3 ± 5.0 | ND | 41.3 ± 2.0 | ND | ND | ND | ND | 7013.9 |
BIHB 749 | 5.3 ± 0.01 | 3.60 | 11.4 ± 0.7 | 7921.7 ± 6.9 | ND | 41.3 ± 3.5 | ND | ND | ND | ND | 7974.4 |
BIHB 750 | 6.1 ± 0.02 | 3.87 | 9.4 ± 0.8 | 7496.7 ± 6.0 | ND | ND | ND | ND | ND | 34.5 ± 2.5 | 7540.6 |
BIHB 757 | 7.1 ± 0.04 | 3.72 | 8.7 ± 1.2 | 5459.0 ± 3.1 | ND | ND | ND | ND | ND | ND | 5467.7 |
BIHB 759 | 14.0 ± 0.90 | 3.62 | 9.5 ± 1.0 | 6850.0 ± 6.4 | ND | ND | ND | ND | ND | ND | 6859.5 |
BIHB 763 | 9.3 ± 0.04 | 3.78 | 26.6 ± 0.7 | 10903.0 ± 3.6 | ND | 42.8 ± 1.0 | ND | 93.6 ± 2.0 | ND | 103.6 ± 3.3 | 11169.6 |
BIHB 769 | 7.6 ± 0.50 | 3.70 | 12.4 ± 1.5 | 2964.0 ± 3.1 | 20.5 ± 2.3 | 92.3 ± 1.8 | 56.1 ± 4.6 | ND | ND | 383.0 ± 3.1 | 3528.3 |
P. poae | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
BIHB 730 | 5.0 ± 0.09 | 3.70 | 25.7 ± 1.4 | 5055.3 ± 5.0 | 16.4 ± 1.2 | ND | ND | ND | ND | ND | 5097.4 |
BIHB 752 | 7.7 ± 0.10 | 3.90 | 8.0 ± 0.8 | 7119.0 ± 3.8 | ND | ND | ND | ND | ND | 35.5 ± 3.4 | 7162.5 |
BIHB 808 | 7.6 ± 0.05 | 3.83 | 9.5 ± 1.3 | 7616.3 ± 3.5 | ND | ND | ND | ND | ND | 36.3 ± 3.3 | 7662.1 |
P. fluorescens | |||||||||||
BIHB 740 | 3.8 ± 0.05 | 4.00 | 12.7 ± 1.0 | 1117.7 ± 5.4 | 67.0 ± 2.6 | 164.0 ± 2.6 | 102.3 ± 1.5 | ND | ND | ND | 1463.7 |
Pseudomonas spp. | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
BIHB 751 | 1.4 ± 0.03 | 4.20 | 13.9 ± 0.8 | 631.7 ± 4.4 | 255.0 ± 5.1 | ND | ND | ND | ND | 4350.0 ± 2.5 | 5250.6 |
BIHB 756 | 9.4 ± 0.05 | 3.75 | 11.9 ± 0.8 | 5061.7 ± 9.4 | 51.7 ± 2.5 | ND | ND | ND | ND | 57.7 ± 2.7 | 5183.0 |
BIHB 804 | 3.8 ± 0.40 | 4.03 | 12.5 ± 0.9 | 5839.3 ± 7.8 | ND | 43.2 ± 2.0 | ND | ND | ND | 41.8 ± 2.5 | 5936.8 |
BIHB 811 | 6.1 ± 0.05 | 4.11 | 17.1 ± 1.2 | 4412.3 ± 5.2 | 138.8 ± 0.9 | 121.3 ± 1.5 | 108.0 ± 3.1 | ND | ND | 658.1 ± 2.3 | 5455.6 |
BIHB 813 | 5.2 ± 0.30 | 4.32 | 12.0 ± 1.5 | 5971.7 ± 5.2 | ND | ND | ND | ND | ND | ND | 5983.7 |
Total organic acids (μg/ml) | 235.6 | 97392.7 | 549.4 | 599 | 266.4 | 128.7 | 0 | 5753.9 | 104925.7 | ||