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Table 3 The band frequencies and absorption intensity of various functional groups in the  Acidovorax oryzae  (Ao) and  Acidovorax citrulli  (Ac) strains

From: Differentiation in MALDI-TOF MS and FTIR spectra between two closely related species Acidovorax oryzae and Acidovorax citrulli

Functional groups Frequency (cm-1) Intensity
Ao (n = 10) Ac (n = 10)  P -value Ao (n = 10) Ac (n = 10)  P -value
CH3 asymmetric stretching 2965.25 ± 0.35 2962.68 ± 0.14 *** 1.14 ± 0.02 1.19 ± 0.02 *
CH2 asymmetric stretching 2930.14 ± 0.26 2927.85 ± 0.23 *** 1.23 ± 0.02 1.25 ± 0.01 *
CH3 symmetric stretching 2873.22 ± 0.47 2875.97 ± 0.36 *** 0.83 ± 0.01 0.89 ± 0.02 *
CH2 symmetric stretching 2853.15 ± 0.36 2855.22 ± 0.56 *** 0.74 ± 0.05 0.86 ± 0.07 **
Amide I 1653.85 ± 0.21 1651.61 ± 0.14 *** 2.97 ± 0.15 1.84 ± 0.25 ***
Amide II 1542.53 ± 0.33 1539.82 ± 0.11 *** 1.98 ± 0.25 1.57 ± 0.36 **
CH2 bending 1453.61 ± 0.43 1452.14 ± 0.14 ** 0.90 ± 0.03 0.96 ± 0.02 *
COO- symmetric stretch 1394.20 ± 0.36 1397.09 ± 0.25 *** 0.98 ± 0.02 0.92 ± 0.05 *
PO2- asymmetric stretching 1239.61 ± 0.12 1239.48 ± 0.19 0.12 1.01 ± 0.02 0.91 ± 0.02 *
PO2- symmetric stretching 1058.65 ± 1.78 1080.02 ± 0.56 *** 1.14 ± 0.19 0.89 ± 0.08 ***
  1. Data are the mean of the 10 strains. *: p < 0.05, **: p < 0.01, ***: p < 0.001.