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Table 1 Physiological parameters of co-cultivation of P. chrysogenum and B. subtilis

From: Functional characterization of a Penicillium chrysogenum mutanase gene induced upon co-cultivation with Bacillus subtilis

Time elapsed since inoculation with B. subtilis(h)

Total biomass concentrationa(g l-1)

qO2 a,b(mmol g-1 h-1)

qCO2 a,b(mmol g-1 h-1)

0

4.04 ± 0.11

0.93 ± 0.02

0.85 ± 0.04

24

4.32 ± 0.07

0.90 ± 0.01

0.81 ± 0.06

48

4.69 ± 0.17

0.78 ± 0.03

0.75 ± 0.04

72

4.98 ± 0.29

0.75 ± 0.05

0.71 ± 0.05

  1. At t = 0 h, a steady-state, glucose-limited chemostat culture of P. chrysogenum, grown in the absence of phenylacetate and at a dilution rate of 0.03 h-1, was inoculated with B. subtilis cultures. Physiological parameters are presented as average and mean deviation of three independent replicate experiments.
  2. aTotal biomass is the sum of P. chrysogenum and B. subtilis biomass. bSpecific rates of oxygen consumption and carbon dioxide production (qO2 and qCO2) were calculated from biomass concentrations and manual analysis of the gas composition and gas-flow.