Nitrogen metabolism in marine methanotrophs

Veronica Lees, Nicholas J.P. Owens, J. Colin Murrell

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)


Two new methane-oxidizing bacteria have been isolated from seawater samples from Plymouth Sound. These marine methanotrophs have an obligate requirement for NaCl and exhibit many properties of typical Type I methanotrophs previously isolated from freshwater environments. However, they are different from all other methanotrophs thus far described in that they failed to grow on all solid media tested. The nitrogen metabolism of both strains was investigated. They were not N2-fixers nor would they use ammonia as nitrogen source. They appeared to utilize the glutamate dehydrogenase pathway for the assimilation of ammonia under all growth conditions tested.

Original languageEnglish
Pages (from-to)60-65
Number of pages6
JournalArchives of Microbiology
Issue number1
Publication statusPublished - 1 Dec 1991


  • Ammonia assimilation
  • Marine methanotroph
  • Methane oxidation
  • Methylomonas
  • Nitrogen metabolism


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