Hydrogen Peroxide Production by the Red-tide FlagellateChattonella marina

Abstract
Chattonella marina is an ichthyotoxic red-tide plankton and the toxic mechanism of which has not been identified. Recently we reported that C. marina has a toxic effect against Vibrio alginolyticus mediated by oxygen radicals. In this study, we found that the amount of hydrogen peroxide increased 10- to 15-fold after the disruption of plankton cells. A small amount of H2O2 was constantly detected in plankton culture under normal growth conditions.

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