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Table 2 Growth of C. glutamicum WT and ΔphoRS on different phosphorus sources

From: Regulation of the pstSCAB operon in Corynebacterium glutamicum by the regulator of acetate metabolism RamB

Phosphorus source Strain Biomass formed [g/l] μ [h−1] Duration of lag phase [h] UDP-glucose hydrolase activity in supernatants [nmol min−1 ml−1] a
Low Pi, 0.065 mMb WT 2 0.14 0 27
  ΔphoRS 1 0.07 6 39
Glycerol-3-phosphate, 1 mM WT 11 0.16 0 9
  ΔphoRS 9 0.11 9 13
5’AMP, 1 mM WT 9 0.08 11 6
  ΔphoRS 7 0.08 34 12
UDP-glucose, 1 mM WT 9 0.06 39 6
  ΔphoRS 8 0.09 63 3
  1. aUDP-glucose hydrolase activity was measured after 180 h of cultivation. No UDP-glucose hydrolase activity was detectable (<1 nmol min−1 ml−1) in supernatants of cells grown under Pi sufficient conditions (13 mM)
  2. bThis concentration is below the Pi concentration of 0.1 mM which supports the half-maximal growth rate in C. glutamicum [31]