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 language | English |
|---|---|
| Pages (from-to) | 201-204 |
| Number of pages | 4 |
| Journal | FEBS Letters |
| Volume | 434 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - Aug 28 1998 |
| Externally published | Yes |
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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Cite this
Peskin, A. V., Labas, Y. A., & Tikhonov, A. N. (1998). Superoxide radical production by sponges Sycon sp. FEBS Letters, 434(1-2), 201-204. https://doi.org/10.1016/S0014-5793(98)00981-8