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Table 3 Quantitative estimation of phosphate solubilization, ammonia and siderophore production

From: Endophytic bacteria from Euphorbia antiquorum L. protect Solanum lycopersicum L. against bacterial wilt caused by Ralstonia solanacearum

Bacterial species

Phosphate solubilization (mm)a

Ammonia (µmol/ml)b

Siderophores (%)c

Catecholate

Hydroxamate

carboxylic

Bacillus velezensis CBv_BE1

6.0

0.761

100

100

63.13

Bacillus amyloliquefaciens CBa_BFL2

3.0

0.751

100

100

27.96

Bacillus amyloliquefaciens CBa_BFL1

0.0

0.71

89.75

77.85

6.22

Bacillus amyloliquefaciens CBa_RA37

4.0

0.814

100

100

20.20

Lysinibacillus fusiformis CBa_LPR19

0.0

0.532

44.58

61.02

7.18

Bacillus Megaterium CBm_RR10

1.5

0.607

55.43

44.84

19.26

  1. aMean diameter of clear halo around the bacterium colony
  2. bRelative ammonia production in water peptone medium
  3. cPercent production of each siderophore type relative to the control treatment