Phenotypical divergences between populations of soil bacteria isolated on different media

  title={Phenotypical divergences between populations of soil bacteria isolated on different media},
  author={Roald S\orheim and Vigdis Lid Torsvik and Jostein Goks\oyr},
  journal={Microbial Ecology},
Bacterial strains were randomly isolated from soil using three different media with glucose (TG), Tryptone Soya Broth (TTS), and succinate (TS) as carbon sources. Plate counts obtained were 12.0×107, 4.5 ×107, and 1.5×107 g−1 soil dry weight, respectively. The strains were characterized phenotypically by the API 20B test system. A cluster analysis of all isolates revealed 40 biotypes at 80% similarity, 23 in TG, 29 in TTS, and 27 in TS. Each of the 10 most common biotypes contained 10 to 2.5… CONTINUE READING
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