ϵ-Proteobacteria form a globally ubiquitous group of ecologically significant organisms and comprise a diverse range of host-associated and free-living species. To grow by anaerobic respiration, many ϵ-proteobacteria reduce nitrate to nitrite followed by either nitrite ammonification or denitrification. Using the ammonifying model organisms Wolinella succinogenes and Campylobacter jejuni, the electron transport chains of nitrate respiration, respiratory nitrite ammonification and even N2O (nitrous oxide) respiration have been characterized in recent years, but knowledge on nitrosative stress defence, nitrogen compound-sensing and corresponding signal transduction pathways is limited. The potentially dominant role of NssR (nitrosative stress-sensing regulator)-type transcription regulators in ϵ-proteobacterial nitrogen metabolism is discussed.
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February 2011
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Conference Article|
January 19 2011
Respiratory nitrogen metabolism and nitrosative stress defence in ϵ-proteobacteria: the role of NssR-type transcription regulators
Melanie Kern;
Melanie Kern
1Institute of Microbiology and Genetics, Department of Biology, Technische Universität Darmstadt, Schnittspahnstrasse 10, 64287 Darmstadt, Germany
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Christine Winkler;
Christine Winkler
1Institute of Microbiology and Genetics, Department of Biology, Technische Universität Darmstadt, Schnittspahnstrasse 10, 64287 Darmstadt, Germany
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Jörg Simon
Jörg Simon
1
1Institute of Microbiology and Genetics, Department of Biology, Technische Universität Darmstadt, Schnittspahnstrasse 10, 64287 Darmstadt, Germany
1To whom correspondence should be addressed (email simon@bio.tu-darmstadt.de).
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Publisher: Portland Press Ltd
Received:
September 14 2010
Online ISSN: 1470-8752
Print ISSN: 0300-5127
© The Authors Journal compilation © 2011 Biochemical Society
2011
Biochem Soc Trans (2011) 39 (1): 299–302.
Article history
Received:
September 14 2010
Citation
Melanie Kern, Christine Winkler, Jörg Simon; Respiratory nitrogen metabolism and nitrosative stress defence in ϵ-proteobacteria: the role of NssR-type transcription regulators. Biochem Soc Trans 1 February 2011; 39 (1): 299–302. doi: https://doi.org/10.1042/BST0390299
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