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Bacterial Denitrification: Asset or Defect?

W. J. Payne
BioScience
Vol. 33, No. 5 (May, 1983), pp. 319-325
DOI: 10.2307/1309319
Stable URL: http://www.jstor.org/stable/1309319
Page Count: 7
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Bacterial Denitrification: Asset or Defect?
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Abstract

Certain bacteria substitute nitrate for O2 in a form of anaerobic respiration called denitrification. Nitrite and N2 O are confirmed intermediates; NO may be too, and N2 is the final product. Specific reductases catalyze each step after electrons pass the cytochrome b level. Much plant nutrient nitrogen is lost to denitrification, but unknown benefits may also result.

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