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Table 1 Metabolites significantly changed under hyperosmotic stress in Caulobacter crescentus

From: A comprehensive genomic, transcriptomic and proteomic analysis of a hyperosmotic stress sensitive α-proteobacterium

  Condition a t-test b
Metabolite Control NaCl stress Sucrose stress NaCl vs control Sucrose vs control
Glucose 11.85 53.15 64.55 0.002 0.003
L-glutamate 17.12 78.54 57.92 <0.001 0.001
L-phenylalanine 0.06 0.14 0.15 0.008 0.020
L-isoleucine 0.20 0.21 0.59 0.851 0.010
L-leucine 0.38 0.64 0.86 0.145 0.026
L-proline 0.20 0.36 0.48 0.144 0.035
  1. aQuantification of metabolites according to GC-MS analysis. Values refer to area-substrate peak relative to the area-ribitol peak [20 nM] and are mean of three independent experiments.
  2. bStudents’ t-test. Values were calculated by comparing relative quantification measured in extract from stressed cells (either 60 mM NaCl or 110 mM sucrose) with that performed in cells growing under non-stress condition. p < 0.05 was considered as statistical significance and values are shown in bold and italic.