Table 5 Organic acid production by fluorescent Pseudomonas during North Carolina 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 | 191.3 ± 1.0 | 3.70 | 14.7 ± 0.6 | 3810.0 ± 7.6 | 10.2 ± 1.0 | ND | ND | ND | ND | ND | 3834.9 |
BIHB 736 | 172.0 ± 0.3 | 3.72 | 9.1 ± 1.3 | 4672.3 ± 6.4 | ND | 42.7 ± 1.2 | ND | ND | ND | ND | 4724.1 |
BIHB 745 | 168.2 ± 0.4 | 3.73 | 10.8 ± 0.5 | 3880.7 ± 5.2 | 10.1 ± 0.8 | ND | ND | ND | ND | ND | 3901.6 |
BIHB 747 | 173.0 ± 0.4 | 3.81 | 16.6 ± 1.0 | 6035.0 ± 4.2 | 11.0 ± 1.8 | 40.3 ± 2.9 | ND | ND | ND | ND | 6102.9 |
BIHB 749 | 177.3 ± 0.6 | 3.73 | 17.1 ± 0.9 | 4587.0 ± 4.7 | ND | 42.7 ± 2.2 | ND | ND | ND | 113.2 ± 2.7 | 4760.0 |
BIHB 750 | 145.7 ± 1.2 | 3.88 | 10.3 ± 0.6 | 4395.3 ± 7.7 | ND | ND | ND | ND | ND | ND | 4405.6 |
BIHB 757 | 175.0 ± 0.3 | 3.92 | 13.6 ± 2.3 | 4649.0 ± 5.5 | 13.3 ± 1.1 | ND | ND | ND | ND | ND | 4675.9 |
BIHB 759 | 178.0 ± 0.6 | 3.81 | 11.0 ± 1.4 | 5331.0 ± 6.1 | ND | ND | ND | ND | ND | ND | 5342.0 |
BIHB 763 | 161.2 ± 0.2 | 3.80 | 11.5 ± 1.3 | 4362.0 ± 4.6 | 10.8 ± 1.0 | ND | ND | ND | ND | ND | 4384.3 |
BIHB 769 | 224.0 ± 0.7 | 3.55 | 10.8 ± 0.8 | 4448.0 ± 5.3 | ND | ND | ND | ND | ND | ND | 4458.8 |
P. poae | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
BIHB 730 | 163.8 ± 1.1 | 3.90 | 10.1 ± 1.2 | 3770.0 ± 6.4 | ND | ND | ND | ND | ND | ND | 3780.1 |
BIHB 752 | 204.3 ± 0.7 | 3.72 | 12.7 ± 1.5 | 4947.0 ± 6.0 | 10.3 ± 1.0 | ND | ND | ND | 26.1 ± 2.0 | ND | 4996.1 |
BIHB 808 | 193.4 ± 0.7 | 3.65 | 11.5 ± 1.2 | 4420.3 ± 2.9 | 10.9 ± 0.8 | ND | 45.1 ± 4.3 | ND | ND | ND | 4442.7 |
P. fluorescens | |||||||||||
BIHB 740 | 236.8 ± 0.6 | 3.48 | 9.8 ± 1.1 | 4762.7 ± 4.3 | 31.3 ± 2.0 | ND | 46.7 ± 3.2 | 59.3 ± 3.5 | ND | 104.8 ± 3.0 | 5014.6 |
Pseudomonas spp. | |||||||||||
BIHB 751 | 123.3 ± 1.4 | 3.89 | 9.1 ± 1.1 | 3241.0 ± 2.6 | 22.3 ± 1.9 | ND | ND | ND | ND | 415.0 ± 4.0 | 3687.4 |
BIHB 756 | 164.2 ± 0.8 | 3.82 | 11.3 ± 0.6 | 4975.0 ± 7.5 | ND | 41.7 ± 1.4 | ND | ND | 29.5 ± 2.2 | ND | 5057.5 |
BIHB 804 | 161.5 ± 1.0 | 3.78 | 15.7 ± 1.2 | 4542.0 ± 5.3 | 10.5 ± 1.0 | 39.3 ± 2.0 | ND | ND | ND | 33.0 ± 1.2 | 4640.5 |
BIHB 811 | 173.0 ± 1.1 | 3.92 | 15.5 ± 0.8 | 2549.0 ± 5.9 | 32.7 ± 0.9 | 54.3 ± 2.0 | 75.1 ± 4.6 | ND | ND | 265.0 ± 3.6 | 2991.6 |
BIHB 813 | 92.7 ± 1.2 | 4.07 | 8.9 ± 1.2 | 4633.3 ± 5.5 | ND | 38.8 ± 2.0 | ND | ND | ND | ND | 4681.0 |
Total organic acids (μg/ml) | 230.1 | 84010.6 | 173.4 | 299.8 | 121.8 | 59.3 | 55.6 | 931 | 85881.6 | ||