Fully Deuterated Euglena gracilis

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Science  06 Nov 1964:
Vol. 146, Issue 3645, pp. 769-770
DOI: 10.1126/science.146.3645.769


Euglena gracilis has been grown in 99.4 percent D2O on fully deuterated substrates. It is the first organism with distinct animal characteristics in which at least 99 percent of the hydrogen normally present has been replaced by deuterium.