Oxidative and hydrolytic transformations of hydroxylamine compounds in cyanobacteria

T. M. Shakila, N. S. Rao, S. N. Bagchi

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Ammonia-incubated cyanobacteria liberated H2O2, accumulated hydroxylamine compounds and nitrite and catalyzed dismutation of hydroxylamine as well as oxidations of ammonia, glutamine, and oximes. Ethyl acetohydroximate-adapted Phormidium released excess H2O2 and phototrophically metabolized the oxime via hydrolysis and dismutation to nitrite and ammonia, which were consumed by nitrite reductase and glutamine synthetase. Added ammonia stimulated H2O2 production and oxime metabolism via glutamate dehydrogenase pathway.

Original languageEnglish (US)
Pages (from-to)282-285
Number of pages4
JournalArchives of Microbiology
Volume162
Issue number4
DOIs
StatePublished - Oct 1 1994

Keywords

  • Ammonia metabolism
  • Cyanobacteria (Phormidium uncinatum)
  • Hydrogen peroxide production
  • Oxidation and dismutation of nitrogen compounds
  • Oxime metabolism

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