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Table 2 The deaminase activity of 1-aminocyclopropane-1-carboxylate (ACC) and the indole-3-acetic acid (IAA) concentrations in different strains of Kosakonia sp. S1 (S1), Enterobacter sp. E5 (E5), Klebsiella sp. Kb (Kb), and the engineered strains of E5, S1, and Kb (designated as E5P, S1P, and KbP, respectively) by expressing deaminase on the bacterial cells

From: Engineering banana endosphere microbiome to improve Fusarium wilt resistance in banana

  Concentration of α-ketobutyrate (mM) Concentration of IAA (mg L−1) by Salkowski reagent
With toluene Without toluene Without Trp With Trp
Control 0.00 ± 0.00b 0.01 ± 0.00b 0.33 ± 0.04c 0.41 ± .005c
S1 0.06 ± 0.01b 0.03 ± 0.01b 27.1 ± 1.33b 39.5 ± 3.46b
S1P 4.94 ± 0.35a 2.05 ± 0.13a ND ND
E5 0.06 ± 0.01b 0.05 ± 0.01b 22.6 ± 2.10b 45.1 ± 2.73b
E5P 4.82 ± 0.17a 1.96 ± 0.35a ND ND
Kb 0.04 ± 0.01b 0.03 ± 0.01b 155 ± 11.2a 161 ± 12.9a
KbP 0.11 ± 0.01b 0.08 ± 0.01b ND ND
  1. The different letters within columns indicate that the values are significantly different at P < 0.05. Values are reported as mean ± SD (standard deviation) (n = 5)
  2. ND not determined