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Table 2 Organic acid production by fluorescent Pseudomonas during tricalcium phosphate solubilization.

From: Organic acid production in vitro and plant growth promotion in maize under controlled environment by phosphate-solubilizing fluorescent Pseudomonas

    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            
BIHB 728 771.3 ± 1.2 3.63 ND 18350.0 ± 5.8 257.0 ± 4.9 49.3 ± 1.8 987.7 ± 3.0 ND 30.5 ± 2.8 2051.8 ± 5.2 21726.3
BIHB 736 778.7 ± 2.4 3.90 ND 18035.3 ± 9.0 177.0 ± 2.6 ND 583.7 ± 4.1 96.0 ± 2.3 ND 1042.0 ± 3.8 19934.0
BIHB 745 827.4 ± 1.8 3.65 ND 18054.3 ± 8.1 210.0 ± 2.9 ND 2249.0 ± 4.4 ND 65.2 ± 2.6 1654.5 ± 3.8 22233.0
BIHB 747 743.0 ± 1.7 3.52 ND 18216.7 ± 3.5 330.7 ± 2.9 ND 1307.7 ± 4.6 ND 25.5 ± 2.1 667.0 ± 3.2 20547.6
BIHB 749 801.0 ± 2.1 3.42 ND 17745.3 ± 7.2 193.7 ± 3.3 ND 797.6 ± 1.9 117.5 ± 2.0 ND 1236.0 ± 6.2 20090.1
BIHB 750 774.3 ± 1.9 3.82 ND 18624.0 ± 4.6 172.3 ± 3.7 ND 509.9 ± 2.7 93.5 ± 1.7 ND 2012.3 ± 3.9 21412.0
BIHB 757 775.3 ± 2.3 3.92 ND 17819.0 ± 6.7 224.5 ± 2.6 ND 772.3 ± 3.4 132.0 ± 3.5 ND 911.0 ± 6.1 19858.8
BIHB 759 751.3 ± 3.7 3.72 ND 18336.3 ± 4.5 179.0 ± 2.9 ND 779.0 ± 5.0 116.0 ± 3.2 ND 2551.0 ± 4.9 21961.3
BIHB 763 718.0 ± 1.5 4.00 ND 17901.3 ± 5.9 173.7 ± 2.6 ND 659.7 ± 4.1 106.0 ± 5.0 ND 2656.0 ± 2.7 21496.7
BIHB 769 806.4 ± 2.3 3.70 ND 19340.0 ± 5.8 154.0 ± 2.5 ND 207.7 ± 3.8 ND ND 1965.0 ± 5.1 21666.7
P. poae            
BIHB 730 768.3 ± 1.8 3.40 ND 17464.7 ± 5.5 251.0 ± 3.1 ND 1172.7 ± 5.9 ND ND 1718.8 ± 3.4 20607.2
BIHB 752 805.0 ± 1.7 3.50 ND 18800.7 ± 6.4 217.0 ± 4.2 ND 321.3 ± 4.1 ND ND 3128.0 ± 4.5 22467.0
BIHB 808 821.4 ± 1.7 3.58 ND 18840.3 ± 7.3 176.3 ± 2.3 ND 475.7 ± 6.6 ND 44.3 ± 2.9 75.0 ± 3.6 19611.6
P. fluorescens
BIHB 740 768.3 ± 2.6 3.97 ND 17038.7 ± 3.8 175.3 ± 4.4 ND 163.3 ± 3.5 129.0 ± 3.8 46.0 ± 3.2 3178.0 ± 3.8 20730.3
Pseudomonas spp.
BIHB 751 318.7 ± 2.0 4.20 7.7 ± 0.6 216.7 ± 3.5 532.3 ± 4.3 ND ND 23.8 ± 1.7 ND 1181.0 ± 5.9 1961.5
BIHB 756 802.3 ± 2.1 3.53 ND 17937.3 ± 6.2 378.0 ± 3.6 ND 209.4 ± 3.2 ND ND 4215.0 ± 3.2 22739.7
BIHB 804 805.1 ± 2.2 3.55 ND 17929.7 ± 4.1 122.7 ± 2.4 53.7 ± 1.8 96.0 ± 2.5 ND ND 1520.0 ± 3.8 19722.1
BIHB 811 717.3 ± 1.9 3.98 ND 14427.3 ± 2.3 14.3 ± 0.4 ND 195.3 ± 4.3 ND 28.5 ± 1.8 ND 14665.4
BIHB 813 631.7 ± 2.5 3.93 ND 18057.7 ± 5.4 175.3 ± 5.9 ND 536.3 ± 4.5 114.4 ± 4.4 ND 913.7 ± 3.7 19797.4
Total organic acids (μg/ml) 7.7 323135.3 4114.1 103.0 12024.3 928.2 240.0 32676.1 373228.7
  1. Values are the mean of three replicates ± standard error of the mean; ND = not detected; 2-KGA = 2-ketogluconic acid.