Phenanthrene-degrading phenotype of Alcaligenes faecalis AFK2

Appl Environ Microbiol. 1982 Feb;43(2):458-61. doi: 10.1128/aem.43.2.458-461.1982.


A phenanthrene-degrading bacterium that assimilated a wide range of organic compounds was isolated from a soil sample and identified as Alcaligenes faecalis strain AFK2. The strain degraded phenanthrene through protocatechuate, but did not utilize naphthalene. The phenanthrene-degrading phenotype (Phn+) of AFK2 disappeared after 20 successive subcultures in a mineral salts medium containing o-phthalate or after subculture in nutrient broth containing mitomycin C. The results suggested that the Phn+ phenotype of this strain might be encoded by extrachromosomal genes.

MeSH terms

  • Alcaligenes / growth & development
  • Alcaligenes / metabolism*
  • Culture Media
  • Hydroxybenzoates / metabolism
  • Phenanthrenes / metabolism*
  • Phenotype


  • Culture Media
  • Hydroxybenzoates
  • Phenanthrenes
  • protocatechuic acid
  • phenanthrene