Superoxide radical production by sponges Sycon sp

Alexander V. Peskin, Yulii A. Labas, Alexander N. Tikhonov

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

Using the catechol Tiron as an O(-·)2 scavenger, we showed that sea sponges (Sycon sp.) produce superoxide radicals in sea water at a high rate without any stimuli added. The rate of O(-·)2 outflow from sponges to their water surroundings reaches a value of 0.5 nmol/min per sponge at pH 6.5. The generation of O(-·)2 was inhibited by Cu,Zn-superoxide dismutase, and restored by the addition of KCN. We also confirmed the abiotic production of O(-·)2 in sea water, detected earlier with a different method by Petasne and Zika [Nature 325 (1987) 516-518]. Copyright (C) 1998 Federation of European Biochemical Societies.

Original languageEnglish
Pages (from-to)201-204
Number of pages4
JournalFEBS Letters
Volume434
Issue number1-2
DOIs
Publication statusPublished - Aug 28 1998
Externally publishedYes

Keywords

  • Electron paramagnetic resonance
  • Free radical
  • Sea animal
  • Sea water
  • Sponge
  • Superoxide

ASJC Scopus subject areas

  • Biophysics
  • Structural Biology
  • Biochemistry
  • Molecular Biology
  • Genetics
  • Cell Biology

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