Nitrogen Fixation in Some Anoxic Lacustrine Environments

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Science  13 Jun 1969:
Vol. 164, Issue 3885, pp. 1277-1279
DOI: 10.1126/science.164.3885.1277


Low rates of acetylene reduction to ethylene in water samples from two dystrophic lakes indicate the presence of nitrogenase and in situ nitrogen fixation. Highest rates were found in anoxic water from the aphotic zone. Environmental conditions in these lakes suggest the agents of fixation were bacteria.

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