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3.3. Isolation of myxobacteria
Small samples of soil (approx. 0.5 g)
were placed on streaks of live cells of E. coli
(grown in nutrient broth for 24 h at 37¡ãC, harvested
by centrifugation and washed twice by
centrifugation and resuspension in distilled water)
or Sac. cerevisiae (grown in Saboraud-dextrose
broth for 48 h at 25"C and treated as for E.coli, on WA (1.0 g/! CaCI,. 2H_,O, 15 g/I Difco
Bacto-agar).  Pure cultures were
obtained by repeated sub-culture on RDA (WA
plus one rabbit dung pellet per plate, autoclaved
separately and added before the medium solidified).

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