Abstract
A laboratory investigation was conducted to study the toxicity and bioaccumulation of seleno-L-methionine, selenate and selenite in the cyanobacteriumAnabaena flos-aquae. The first sub-lethal effects of seleno-L-methionine, selenite and selenate occurred at 0.1, 3.0, and 3.0 mg/L, respectively with a decrease in chlorophylla concentration (P < 0.0001). Selenium bioconcentration factors (BCF) were in the order of seleno-L-methionine, selenite, and selenate. Significant decreases in intracellular selenium concentration were observed at both the no effect (NOEL) and low effect levels (LOEL) at each oxidation state tested in the given experiment (p < 0.0001). Mechanisms for the assimilation, toxicity and regulation of selenium are presented.
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Kiffney, P., Knight, A. The toxicity and bioaccumulation of selenate, selenite and seleno-L-methionine in the cyanobacteriumAnabaena flos-aquae . Arch. Environ. Contam. Toxicol. 19, 488–494 (1990). https://doi.org/10.1007/BF01059066
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DOI: https://doi.org/10.1007/BF01059066