Superoxide radical production by sponges Sycon sp

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

doi:10.1016/S0014-5793(98)00981-8

Superoxide radical production by sponges Sycon sp

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

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	201-204
Number of pages	4
Journal	FEBS Letters
Volume	434
Issue number	1-2
DOIs	https://doi.org/10.1016/S0014-5793(98)00981-8
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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10.1016/S0014-5793(98)00981-8

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title = "Superoxide radical production by sponges Sycon sp",

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.",

keywords = "Electron paramagnetic resonance, Free radical, Sea animal, Sea water, Sponge, Superoxide",

author = "Peskin, {Alexander V.} and Labas, {Yulii A.} and Tikhonov, {Alexander N.}",

note = "Funding Information: We thank all the members of the sea aquarium department of the Moscow Zoo headed by Vladimir Emanov for the generous supply of sponges. This work was supported in part by grants from the Russian Foundation for Basic Research.",

year = "1998",

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T1 - Superoxide radical production by sponges Sycon sp

AU - Peskin, Alexander V.

AU - Labas, Yulii A.

AU - Tikhonov, Alexander N.

N1 - Funding Information: We thank all the members of the sea aquarium department of the Moscow Zoo headed by Vladimir Emanov for the generous supply of sponges. This work was supported in part by grants from the Russian Foundation for Basic Research.

PY - 1998/8/28

Y1 - 1998/8/28

N2 - 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.

AB - 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.

KW - Electron paramagnetic resonance

KW - Free radical

KW - Sea animal

KW - Sea water

KW - Sponge

KW - Superoxide

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