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. 2020 Jun 26;11:1424. doi: 10.3389/fmicb.2020.01424

TABLE 3.

PGPR traits of selected bacterial strains representing the 41 ribotype-groups of isolates obtained from Echinocacthus platyacanthus rhizosphere.

Origin Strain Indoles production (μg mL–1) Phosphate solubilization (P-PO4 mL–1) Inhibition of Fusarium (%) Production of siderophore vs. different metal ions
Fe Ni Cu K Zn Mo V Cd Co Pb
Wild Bacillus (P25) 21.220.37rs 15.520.49fgh 39.172.89ef
Bacillus (P35) 57.920.62j 27.256.69de 49.171.44de
B. subtilis (P2.2) 19.230.58st 66.831.76b 0 + + + + +
B. subtilis (P37) 66.660.16g 16.473.22fgh 0
B. subtilis (P39) 17.780.26t 15.971.49fgh 0
B. subtilis (P26.2) 20.140.28rs 2.731.56j 0 + + + + + + + + + +
B. velezensis (P34) 64.27.041h 15.741.83fgh 41.673.82ef
B. velezensis (P38) 81.220.69c 18.372.07fg 0
B. velezensis (P9) 29.280.73p 18.241.08fg 78.332.89a
Pseudomonas (P16) 68.090.26fg 17.702.03fg 0
Pseudomonas (P18.1) 66.880.65g 11.400.26ghi 34.171.44f
Pseudomonas (P41) 36.610.30n 65.081.54b 49.171.44de + + + + + + + + + +
P. granadensis (P32) 76.261.47d 20.122.68ef 34.171.44f
P. koreensis (P1.1) 77.620.32d 3.610.86j 0
P. koreensis (P1.2) 50.431.59kl 68.861.52ab 47.502.5de + + + + + + + + + +
P. koreensis (P18.2) 24.520.75q 71.381.56ab 73.331.44ab + + + +
Stenotrophomonas (P36) 37.050.32n 17.022.35fgh 49.171.44de
S. maltophilia (P31) 58.440.41j 4.960.79ij 47.502.5de + + + + + + + + + +
S. rhizophila (P12) 92.520.90a 36.124.76c 61.675.20c
Cultivated Bacillus (P26.1) 13.670.43u 18.006.49gf 41.880.76ef
Bacillus (P28) 60.990.74i 6.400.13ij 54.173.82cd
Bacillus (P4) 48.830.22l 3.150.56j 54.482.75cd
B. aryabhattai (P15) 46.170.65m 20.651.66ef 0
B. paramycoides (P40) 83.630.66b 75.390.63a 0
B. siamensis (P13) 67.570.68fg 9.770.67hij 0
B. subtilis (P2.1) 33.550.48o 28.872.63cd 0
B. subtilis (P14) 30.330.32p 19.355.05f 0
B. subtilis (P23) 67.980.38fg 6.260.83ij 45.837.22de
B. subtilis (P6) 91.320.92a 5.521.09ij 41.673.82ef
B. subtilis (P7) 51.080.06k 7.330.83ij 0
B. tequilensis (P29) 35.570.08n 7.390.92ij 64.172.89bc
Brevibacterium (P8) 72.010.02e 5.231.37ij 40.832.89ef
Cutibacterium (P22) 13.420.32u 11.650.41ghi 47.500de
Paenibacillus (P5) 21.040.32rs 3.480.91j 54.211.39cd
P. lautus (P3) 21.990.77r 15.700.99fgh 48.679.42de

Different superscript letters denote groups of statistically significant values, according to ANOVA, followed by Tukey tests.