Enzymatic defenses against oxygen toxicity in the hydrothermal vent animals Riftia pachyptila and Calyptogena magnifica

Janice Blum, Irwin Fridovich

Research output: Contribution to journalArticle

49 Scopus citations

Abstract

Two deep-sea hydrothermal vent organisms, the tube worm Riftia pachyptila and the clam Calyptogena magnifica, contain superoxide dismutase, dianisidine peroxidase, and glutathione peroxidase. The tube worm trophosome exhibits an iron-containing superoxide dismutase, ordinarily associated with prokaryotes and not previously seen in an animal tissue, in accord with the presence of symbiotic bacteria in this tissue. The enzymes which provide a defense against oxygen toxicity are thus present in these animals.

Original languageEnglish (US)
Pages (from-to)617-620
Number of pages4
JournalArchives of Biochemistry and Biophysics
Volume228
Issue number2
DOIs
StatePublished - Feb 1 1984
Externally publishedYes

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology

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