A denitrifying strain of Rhodobacter capsulatus

David J. Richardson, Louise C. Bell, James W.B. Moir, Stuart J. Ferguson

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Repeated subculturing of Rhodobacter capsulatus strain BK5 under phototrophic conditions on a medium containing butyrate and nitrate led to the appearance of cultures that, unlike the original, produced gas. Isolation of a pure culture of the gas-forming organism revealed that it was a derivative of R. capsulatus BK5 that by virtue of expressing a nitrite reductase can catalyse the complete sequence of the denitrification reactions. The nitrite reductase is of the type that contains copper rather than haem.

Original languageEnglish
Pages (from-to)323-328
Number of pages6
JournalFEMS Microbiology Letters
Issue number3
Publication statusPublished - 15 Jul 1994


  • Denitrification
  • Nitrite reductase
  • Rhodobacter capsulatus

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