Abstract
ALTHOUGH numerous investigators have shown that molybdenum is important for the utilization of nitrate nitrogen by fungi and higher plants1,2, the role of the micronutrient element in the enzyme systems involved has not been determined. We have recently been able to show that the concentrations of nitrate reductase in cell-free extracts of molybdenum-deficient Neurospora and Aspergillus are markedly decreased to the extent of one-fifth to one-thirtieth of that of normal tissue. However, the nitrite activity, designated as nitrite reductase3, of these extracts was significantly increased in Neurospora (5297a) and Aspergillus compared to that of the controls.
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NICHOLAS, D., NASON, A. & McELROY, W. Effect of Molybdenum Deficiency on Nitrate Reductase in Cell-free Extracts of Neurospora and Aspergillus. Nature 172, 34 (1953). https://doi.org/10.1038/172034a0
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DOI: https://doi.org/10.1038/172034a0
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