The identification of a periplasmic nitrate reductase in Paracoccus denitrificans

Heather J. Sears, Stuart J. Ferguson, David J. Richardson, Stephen Spiro

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4 Citations (Scopus)


A nitrate reductase activity has been identified in periplasmic extracts of Paracoccus denitrificans. The enzyme is relatively insensitive to azide and does not reduce chlorate, features which distinguish it from the well-characterised membrane-associated nitrate reductase. The specific activity of the enzyme was higher in intact cells grown with butyrate rather than succinate as the sole source of carbon.

Original languageEnglish
Pages (from-to)107-111
Number of pages5
JournalFEMS Microbiology Letters
Issue number1
Publication statusPublished - 1 Oct 1993


  • Aerobic denitrification
  • Nitrate reductase
  • Paracoccus denitrificans
  • Periplasm

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