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Production of superoxide ions within tissues of the symbiotic sea anemone Aiptasia pulchella was detected using SOD-inhibitable cytochrome c reduction and quantified by SOD-inhibitable reduction of nitro blue tetrazolium (NBT). Intact aposymbiotic and symbiotic specimens of A. pulchella produced
Cnidarians living in symbiosis with photosynthetic cells--called zooxanthellae--are submitted to high oxygen levels generated by photosynthesis. To cope with this hyperoxic state, symbiotic cnidarians present a high diversity of superoxide dismutases (SOD) isoforms. To understand better the
Depending on their size and morphology, anthozoan polyps and colonies may be diffusion-limited in their oxygen consumption, even under well-stirred, air-saturated conditions. This is indicated by an enhancement of oxygen consumption under steady-state hyperoxic conditions that simulate the levels of