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Literature DB >> 11948173

Nitrite reductase of Nitrosomonas europaea is not essential for production of gaseous nitrogen oxides and confers tolerance to nitrite.

Hubertus J E Beaumont¹, Norman G Hommes, Luis A Sayavedra-Soto, Daniel J Arp, David M Arciero, Alan B Hooper, Hans V Westerhoff, Rob J M van Spanning.

Abstract

A gene that encodes a periplasmic copper-type nitrite reductase (NirK) was identified in Nitrosomonas europaea. Disruption of this gene resulted in the disappearance of Nir activity in cell extracts. The nitrite tolerance of NirK-deficient cells was lower than that of wild-type cells. Unexpectedly, NirK-deficient cells still produced nitric oxide (NO) and nitrous oxide (N(2)O), the latter in greater amounts than that of wild-type cells. This demonstrates that NirK is not essential for the production of NO and N(2)O by N. europaea. Inactivation of the putative fnr gene showed that Fnr is not essential for the expression of nirK.

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Year: 2002 PMID： 11948173 PMCID： PMC134999 DOI： 10.1128/JB.184.9.2557-2560.2002

Source DB: PubMed Journal: J Bacteriol ISSN： 0021-9193 Impact factor: 3.490

19 in total

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32 in total

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Authors: Christopher J Sedlacek; Brian McGowan; Yuichi Suwa; Luis Sayavedra-Soto; Hendrikus J Laanbroek; Lisa Y Stein; Jeanette M Norton; Martin G Klotz; Annette Bollmann
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7. Achromobacter denitrificans strain YD35 pyruvate dehydrogenase controls NADH production to allow tolerance to extremely high nitrite levels.

Authors: Yuki Doi; Motoyuki Shimizu; Tomoya Fujita; Akira Nakamura; Noboru Takizawa; Naoki Takaya
Journal: Appl Environ Microbiol Date: 2014-01-10 Impact factor: 4.792