Kinetics of biological hydrogen peroxide production
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Reactive oxygen species (ROS) such as hydrogen peroxide (H2O2), superoxide (O2-), and hydroxyl radical (HO•) are important to the biogeochemical cycling of trace metals and carbon and could potentially have significant effects on marine processes. This study includes projects that examine both biological production and decay rates of H2O2 (and, to a lesser extent, O2-) at both the macroscopic (ecosystem) and microscopic (cellular) level. Dark production rates (PH2O2) and decay rate coefficients (kloss,H2O2) were determined by spiked batch incubations in the Prochlorococcus-dominated waters of ...