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Nitrification and Induction of Nitrate Reductase in Nitrogen-deficient Algae

Abstract

IT has been known for a long time that nitrogen-deficient algae can reduce added nitrate very rapidly1,2. In accordance with this observation, Morris and Syrett3,4 were able to demonstrate, in Chlorella grown in ammonium, the formation of nitrate reductase after the nitrogen source had been exhausted. This seems to contradict the well established fact that nitrate reductase in algae and all other plants studied is an adaptive enzyme which is formed only in the presence of its substrate5.

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KESSLER, E., OESTERHELD, H. Nitrification and Induction of Nitrate Reductase in Nitrogen-deficient Algae. Nature 228, 287–288 (1970). https://doi.org/10.1038/228287a0

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