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Title: Nitrification by Some Diazotrophic Enterobacteria
Authors: Kannan, V
Raju, P N
Keywords: Diazotrophs;Nitrification;Ammonia oxidation;Ammonia monooxygenase
Issue Date: Apr-2003
Publisher: NISCAIR-CSIR, India
Abstract: Biological nitrogen fixers in addition to their involvement in nitrogen fixation also take part in nitrification and denitrification processes. Some members of enterobacteria used in the present study besides fixing nitrogen also oxidized ammonia to hydroxylamine and nitrite. The whole cells as well as cell free extract of nitrogen fixing populations of these organisms showed oxidation of ammonia and this activity of ammonia monooxygenase was higher at high oxygen.conditions which was also confirmed by the calorimetric estimation of hydroxylamine and nitrite in the enzyme assay mixture.
Page(s): 240-245
ISSN: 0975-0967 (Online); 0972-5849 (Print)
Appears in Collections:IJBT Vol.02(2) [April 2003]

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