Role of nitrogen oxides in the metabolism of ammonia-oxidizing bacteria

M. J. Kampschreur; N. C.G. Tan; C. Picioreanu; M. S.M. Jetten; I. Schmidt; M. C.M. Van Loosdrecht

doi:10.1042/BST0340179

Role of nitrogen oxides in the metabolism of ammonia-oxidizing bacteria

M. J. Kampschreur, N. C.G. Tan, C. Picioreanu, M. S.M. Jetten, I. Schmidt, M. C.M. Van Loosdrecht

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

29 Scopus citations

Abstract

Ammonia-oxidizing bacteria (AOB) can use oxygen and nitrite as electron acceptors. Nitrite reduction by Nitrosomonas is observed under three conditions: (i) hydrogen-dependent denitrification, (ii) anoxic ammonia oxidation with nitrogen dioxide (NO2) and (iii) NOx-induced aerobic ammonia oxidation. NOx molecules play an important role in the conversion of ammonia and nitrite by AOB. Absence of nitric oxide (NO), which is generally detectable during ammonia oxidation, severely impairs ammonia oxidation by AOB. The lag phase of recovery of aerobic ammonia oxidation was significantly reduced by NO2 addition. Acetylene inhibition tests showed that NO2-dependent and oxygen-dependent ammonia oxidation can be distinguished. Addition of NOx increased specific activity of ammonia oxidation, growth rate and denitrification capacity. Together, these findings resulted in a hypothetical model on the role of NOx in ammonia oxidation: the NOx cycle. ©2006 Biochemical Society.

Original language	English (US)
Title of host publication	Biochemical Society Transactions
Pages	179-181
Number of pages	3
DOIs	https://doi.org/10.1042/BST0340179
State	Published - Feb 1 2006
Externally published	Yes

ASJC Scopus subject areas

Biochemistry

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10.1042/BST0340179

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title = "Role of nitrogen oxides in the metabolism of ammonia-oxidizing bacteria",

abstract = "Ammonia-oxidizing bacteria (AOB) can use oxygen and nitrite as electron acceptors. Nitrite reduction by Nitrosomonas is observed under three conditions: (i) hydrogen-dependent denitrification, (ii) anoxic ammonia oxidation with nitrogen dioxide (NO2) and (iii) NOx-induced aerobic ammonia oxidation. NOx molecules play an important role in the conversion of ammonia and nitrite by AOB. Absence of nitric oxide (NO), which is generally detectable during ammonia oxidation, severely impairs ammonia oxidation by AOB. The lag phase of recovery of aerobic ammonia oxidation was significantly reduced by NO2 addition. Acetylene inhibition tests showed that NO2-dependent and oxygen-dependent ammonia oxidation can be distinguished. Addition of NOx increased specific activity of ammonia oxidation, growth rate and denitrification capacity. Together, these findings resulted in a hypothetical model on the role of NOx in ammonia oxidation: the NOx cycle. {\textcopyright}2006 Biochemical Society.",

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AU - Tan, N. C.G.

AU - Picioreanu, C.

AU - Jetten, M. S.M.

AU - Schmidt, I.

AU - Van Loosdrecht, M. C.M.

N1 - Generated from Scopus record by KAUST IRTS on 2022-09-13

PY - 2006/2/1

Y1 - 2006/2/1

N2 - Ammonia-oxidizing bacteria (AOB) can use oxygen and nitrite as electron acceptors. Nitrite reduction by Nitrosomonas is observed under three conditions: (i) hydrogen-dependent denitrification, (ii) anoxic ammonia oxidation with nitrogen dioxide (NO2) and (iii) NOx-induced aerobic ammonia oxidation. NOx molecules play an important role in the conversion of ammonia and nitrite by AOB. Absence of nitric oxide (NO), which is generally detectable during ammonia oxidation, severely impairs ammonia oxidation by AOB. The lag phase of recovery of aerobic ammonia oxidation was significantly reduced by NO2 addition. Acetylene inhibition tests showed that NO2-dependent and oxygen-dependent ammonia oxidation can be distinguished. Addition of NOx increased specific activity of ammonia oxidation, growth rate and denitrification capacity. Together, these findings resulted in a hypothetical model on the role of NOx in ammonia oxidation: the NOx cycle. ©2006 Biochemical Society.

AB - Ammonia-oxidizing bacteria (AOB) can use oxygen and nitrite as electron acceptors. Nitrite reduction by Nitrosomonas is observed under three conditions: (i) hydrogen-dependent denitrification, (ii) anoxic ammonia oxidation with nitrogen dioxide (NO2) and (iii) NOx-induced aerobic ammonia oxidation. NOx molecules play an important role in the conversion of ammonia and nitrite by AOB. Absence of nitric oxide (NO), which is generally detectable during ammonia oxidation, severely impairs ammonia oxidation by AOB. The lag phase of recovery of aerobic ammonia oxidation was significantly reduced by NO2 addition. Acetylene inhibition tests showed that NO2-dependent and oxygen-dependent ammonia oxidation can be distinguished. Addition of NOx increased specific activity of ammonia oxidation, growth rate and denitrification capacity. Together, these findings resulted in a hypothetical model on the role of NOx in ammonia oxidation: the NOx cycle. ©2006 Biochemical Society.

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M3 - Conference contribution

SP - 179

EP - 181

BT - Biochemical Society Transactions

ER -

Role of nitrogen oxides in the metabolism of ammonia-oxidizing bacteria

Abstract

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