Different sensitivities to oxygen of nitrous oxide production by Nitrosomonas europaea and Nitrosolobus multiformis

L. Dundee; D. W. Hopkins

doi:10.1016/S0038-0717(01)00059-1

Different sensitivities to oxygen of nitrous oxide production by Nitrosomonas europaea and Nitrosolobus multiformis

L. Dundee, D. W. Hopkins^*

^*Corresponding author for this work

Research output: Contribution to journal › Short communication › peer-review

43 Citations (Scopus)

Abstract

We measured N₂O production by two species of primary chemoautotrophic nitrifying bacteria, Nitrosomonas europaea and Nitrosolobus multiformis, in media with different dissolved O₂ concentrations. Both species produced N₂O across a wide range of O₂ concentrations and after 48 h there was a large peak of N₂O production (3.2 nmol N₂O cm^-3 cell suspension) by N. europaea at a dissolved concentration of 2.1 mg O₂ 1^-1, whereas for N. multiformis the peak in N₂O production was much smaller (1.6 nmol N₂O cm^-1), but it also occurred at a dissolved O₂ concentration of 2.1 mg O₂ 1^-1. However at greater dissolved oxygen concentrations (between 24 and 37 mg O₂ 1^-1), N. multiformis produced more N₂O than N. europaea. The results are consistent with both species producing N₂O during NH₄⁺ oxidation and with N. europaea, producing a much larger amount of N₂O during denitrification than N. multiformis.

Original language	English
Pages (from-to)	1563-1565
Number of pages	3
Journal	Soil Biology and Biochemistry
Volume	33
Issue number	11
DOIs	https://doi.org/10.1016/S0038-0717(01)00059-1
Publication status	Print publication - 2001
Externally published	Yes

Keywords

Nitrifer denitrification
Nitrification
Nitrosolobus
Nitrosomonas
Nitrous oxide
Oxygen

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10.1016/S0038-0717(01)00059-1

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title = "Different sensitivities to oxygen of nitrous oxide production by Nitrosomonas europaea and Nitrosolobus multiformis",

abstract = "We measured N2O production by two species of primary chemoautotrophic nitrifying bacteria, Nitrosomonas europaea and Nitrosolobus multiformis, in media with different dissolved O2 concentrations. Both species produced N2O across a wide range of O2 concentrations and after 48 h there was a large peak of N2O production (3.2 nmol N2O cm-3 cell suspension) by N. europaea at a dissolved concentration of 2.1 mg O2 1-1, whereas for N. multiformis the peak in N2O production was much smaller (1.6 nmol N2O cm-1), but it also occurred at a dissolved O2 concentration of 2.1 mg O2 1-1. However at greater dissolved oxygen concentrations (between 24 and 37 mg O2 1-1), N. multiformis produced more N2O than N. europaea. The results are consistent with both species producing N2O during NH4+ oxidation and with N. europaea, producing a much larger amount of N2O during denitrification than N. multiformis.",

keywords = "Nitrifer denitrification, Nitrification, Nitrosolobus, Nitrosomonas, Nitrous oxide, Oxygen",

author = "L. Dundee and Hopkins, {D. W.}",

year = "2001",

doi = "10.1016/S0038-0717(01)00059-1",

language = "English",

volume = "33",

pages = "1563--1565",

journal = "Soil Biology and Biochemistry",

issn = "0038-0717",

publisher = "Elsevier",

number = "11",

}

TY - JOUR

T1 - Different sensitivities to oxygen of nitrous oxide production by Nitrosomonas europaea and Nitrosolobus multiformis

AU - Dundee, L.

AU - Hopkins, D. W.

PY - 2001

Y1 - 2001

N2 - We measured N2O production by two species of primary chemoautotrophic nitrifying bacteria, Nitrosomonas europaea and Nitrosolobus multiformis, in media with different dissolved O2 concentrations. Both species produced N2O across a wide range of O2 concentrations and after 48 h there was a large peak of N2O production (3.2 nmol N2O cm-3 cell suspension) by N. europaea at a dissolved concentration of 2.1 mg O2 1-1, whereas for N. multiformis the peak in N2O production was much smaller (1.6 nmol N2O cm-1), but it also occurred at a dissolved O2 concentration of 2.1 mg O2 1-1. However at greater dissolved oxygen concentrations (between 24 and 37 mg O2 1-1), N. multiformis produced more N2O than N. europaea. The results are consistent with both species producing N2O during NH4+ oxidation and with N. europaea, producing a much larger amount of N2O during denitrification than N. multiformis.

AB - We measured N2O production by two species of primary chemoautotrophic nitrifying bacteria, Nitrosomonas europaea and Nitrosolobus multiformis, in media with different dissolved O2 concentrations. Both species produced N2O across a wide range of O2 concentrations and after 48 h there was a large peak of N2O production (3.2 nmol N2O cm-3 cell suspension) by N. europaea at a dissolved concentration of 2.1 mg O2 1-1, whereas for N. multiformis the peak in N2O production was much smaller (1.6 nmol N2O cm-1), but it also occurred at a dissolved O2 concentration of 2.1 mg O2 1-1. However at greater dissolved oxygen concentrations (between 24 and 37 mg O2 1-1), N. multiformis produced more N2O than N. europaea. The results are consistent with both species producing N2O during NH4+ oxidation and with N. europaea, producing a much larger amount of N2O during denitrification than N. multiformis.

KW - Nitrifer denitrification

KW - Nitrification

KW - Nitrosolobus

KW - Nitrosomonas

KW - Nitrous oxide

KW - Oxygen

UR - http://www.scopus.com/inward/record.url?scp=0034846841&partnerID=8YFLogxK

U2 - 10.1016/S0038-0717(01)00059-1

DO - 10.1016/S0038-0717(01)00059-1

M3 - Short communication

AN - SCOPUS:0034846841

SN - 0038-0717

VL - 33

SP - 1563

EP - 1565

JO - Soil Biology and Biochemistry

JF - Soil Biology and Biochemistry

IS - 11

ER -

Different sensitivities to oxygen of nitrous oxide production by Nitrosomonas europaea and Nitrosolobus multiformis

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Keywords

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