Comparison of effects of nitrate, nitrite, and nitric oxide on reduction of nitrous oxide to dinitrogen by soil microorganisms
Conference
·
· Soil Sci. Soc. Am. J.; (United States)
OSTI ID:5737653
Recent work has shown that nitrate inhibits reduction of nitrous oxide (N/sub 2/O) to dinitrogen (N/sub 2/) by soil microorganisms under anaerobic conditions. Studies to investigate the possibility that this inhibition is caused by nitrite or nitric oxide (NO) formed through microbial reduction of nitrate showed that both NO and nitrite inhibit reduction of N/sub 2/O to N/sub 2/ by soil microorganisms under anaerobic conditions (helium atmosphere) but that the inhibitory effect of NO on N/sub 2/O reduction is much smaller than the effects of nitrate or nitrite. Comparison of the effects of nitrate, nitrite, and mixtures of nitrate and nitrite on reduction of N/sub 2/O to N/sub 2/ by soils incubated under He showed that nitrate per se inhibits N/sub 2/O reduction and did not confirm a recent suggestion that the inhibitory effect of nitrate on N/sub 2/O reduction is due to nitrite formed through microbial reduction of nitrate.
- Research Organization:
- Iowa State Univ., Ames
- OSTI ID:
- 5737653
- Conference Information:
- Journal Name: Soil Sci. Soc. Am. J.; (United States) Journal Volume: 45:6
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
510200* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
BIOLOGICAL EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
DENITRIFICATION
ELEMENTS
INHIBITION
MICROORGANISMS
NITRATES
NITRIC OXIDE
NITRITES
NITROGEN
NITROGEN COMPOUNDS
NITROGEN OXIDES
NITROUS OXIDE
NONMETALS
OXIDES
OXYGEN COMPOUNDS
REDUCTION
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
BIOLOGICAL EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
DENITRIFICATION
ELEMENTS
INHIBITION
MICROORGANISMS
NITRATES
NITRIC OXIDE
NITRITES
NITROGEN
NITROGEN COMPOUNDS
NITROGEN OXIDES
NITROUS OXIDE
NONMETALS
OXIDES
OXYGEN COMPOUNDS
REDUCTION