Abstract
THE recent discovery that cobalt is essential for nitrogen fixation in leguminous root nodules1–5 suggested that there might be a similar requirement for that element in the fixation proceeding in the root nodules of several non-leguminous genera6 for which molybdenum has recently been shown to be needed7,8.
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BOND, G., HEWITT, E. Cobalt and the Fixation of Nitrogen by Root Nodules of Alnus and Casuarina. Nature 195, 94–95 (1962). https://doi.org/10.1038/195094a0
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DOI: https://doi.org/10.1038/195094a0
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