“…Methane-oxidizing microorganisms have been described by several authors (Kaserer, 1906;Sohngen, 1906;Harper, 1939;Leadbetter & Foster, 1960;Brown et al, 1964;Nyns & Wiaux, 1969). The organisms mentioned in literature are for example Bacillus methanicus (Sohngen, 1906), Methanonomas methanooxidans (Brown et al, 1964), Methylococcus capsulatus (Foster & Davis, 1966) and Pseudomonas methanica (Dworkin & Foster, 1956;Leadbetter & Foster, 1958).…”