TABLE 3.

Bacterial characteristics before (PRE-GRAZ) and after (GRAZ) the addition of Ochromonas sp. to chemostat cultures of moderately motile P. rhodesiae CP-17 and highly motile Acidovorax sp. strain CP-2a

Bacterial strain and sampling timeBacteriaOchromonas sp.
Mean speed (μm s−1)Cell vol (μm3)Cell no. (106 ml−1)Cell no. (103 ml−1)Max growth rate (day−1)
CP-17
    PRE-GRAZ21.6 ± 3.70.23 ± 0.0513.4 ± 1.14
    GRAZ15.3 ± 4.60.21 ± 0.040.32 ± 0.0939.1 ± 3.001.40 ± 0.09
CP-2
    PRE-GRAZ47.0 ± 4.50.24 ± 0.0111.5 ± 0.85
    GRAZ54.2 ± 5.10.21 ± 0.031.20 ± 0.1425.6 ± 0.551.08 ± 0.06
  • a Values were averaged from 5 days of steady state and are given as mean ± range from two replicate reactors.