Abstract:
:Under anaerobic conditions, Klebsiella pneumoniae reduced nitrite (NO2-), yielding nitrous oxide (N2O) and ammonium ions (NH4+) as products. Nitrous oxide formation accounted for about 5% of the total NO2- reduced, and NH4+ production accounted for the remainder. Glucose and pyruvate were the electron donors for NO2- reduction to N2O by whole cells, whereas glucose, NADH, and NADPH were found to be the electron donors when cell extracts were used. On the one hand, formate failed to serve as an electron donor for NO2- reduction to N2O and NH4+, whereas on the other hand, formate was the best electron donor for nitrate reduction in either whole cells or cell extracts. Mutants that are defective in the reduction of NO2- to NH4+ were isolated, and these strains were found to produce N2O at rates comparable to that of the parent strain. These results suggest that the nitrite reductase producing N2O is distinct from that producing NH4+. Nitrous oxide production from nitric oxide (NO) occurred in all mutants tested, at rates comparable to that of the parent strain. This result suggests that NO reduction to N2O, which also uses NADH as the electron donor, is independent of the protein(s) catalyzing the reduction of NO2- to N2O.
journal_name
J Bacterioljournal_title
Journal of bacteriologyauthors
Satoh T,Hom SS,Shanmugam KTdoi
10.1128/JB.155.2.454-458.1983subject
Has Abstractpub_date
1983-08-01 00:00:00pages
454-8issue
2eissn
0021-9193issn
1098-5530journal_volume
155pub_type
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doi:10.1128/JB.99.2.552-557.1969
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.109.1.262-265.1972
更新日期:1972-01-01 00:00:00
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journal_title:Journal of bacteriology
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pub_type: 杂志文章
doi:10.1128/jb.168.3.1392-1401.1986
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doi:10.1128/JB.102.1.85-96.1970
更新日期:1970-04-01 00:00:00
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journal_title:Journal of bacteriology
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doi:10.1128/JB.01347-08
更新日期:2009-01-01 00:00:00
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更新日期:1987-08-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
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更新日期:1986-11-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
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更新日期:1993-08-01 00:00:00
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pub_type: 杂志文章
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更新日期:1993-01-01 00:00:00
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journal_title:Journal of bacteriology
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更新日期:1962-08-01 00:00:00
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pub_type: 杂志文章
doi:10.1128/jb.171.7.3696-3703.1989
更新日期:1989-07-01 00:00:00
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pub_type: 杂志文章
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更新日期:2008-10-01 00:00:00
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pub_type: 杂志文章
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更新日期:1987-09-01 00:00:00