Characterization of the particulate nitrite oxidase and its component activities from the chemoautotroph Nitrobacter agilis

O'Kelley, Joseph C.; Becker, George E.; Nason, Alvin

doi:10.1016/0005-2728(70)90107-6

Cited by 36 publications

(6 citation statements)

References 17 publications

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“…Additionally, this research suggests that reactions other than nitrate reductase (11,14) may be important in energy conservation in dissimilatory nitrate reduction. Certainly, in terms of energy coupling, the H2-NO2-and H2-NH20H systems presented here are similar to the NADH+-NO2and NADH+-NH20H systems reported in aerobic nitrifying bacteria (18).…”

Section: Resultssupporting

confidence: 81%

Energy coupling to nitrite respiration in the sulfate-reducing bacterium Desulfovibrio gigas

Barton¹,

LeGall²,

Odom³

et al. 1983

J Bacteriol

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By use of a membrane fraction prepared from Desulfovibrio gigas grown in a lactate-sulfate medium, synthesis of ATP was demonstrated to be coupled to the oxidation of molecular hydrogen and reduction of either nitrite or hydroxylamine. This phosphorylation was uncoupled from electron transport by pentachlorophenol, methyl viologen, and gramicidin, but not by oligomycin. The extrusion of protons from the cells was shown to be coupled to the hydrogen-nitrite respiratory system, and, assuming the localization of nitrite reductase on the outer side of the plasma membrane, H+/2e-values of 2.0 ± 0.3 were obtained. Energy coupling observed with this system appears to be due to electron transfer-coupled proton translocation rather than vectorial electron transfer associated with hydrogen oxidation.

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Section: Resultssupporting

confidence: 81%

Energy coupling to nitrite respiration in the sulfate-reducing bacterium Desulfovibrio gigas

Barton¹,

LeGall²,

Odom³

et al. 1983

J Bacteriol

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“…Sufficient amounts of NaHCO3 were added to supply alkalinity and to act as a buffer and maintain the pH. The pH was regulated constantly at 7.5 ± 0.1, as the optimum pH for AOB and NOB is 7.0 ~ 8.5 (Groeneweg et al 1994) and 6.0 ~ 7.5 (O'Kelley et al 1970) respectively.…”

Section: Start-up Periodmentioning

confidence: 99%

High NH4+-N concentration wastewater treatment by shortcut nitriﬁcation–denitriﬁcation using a system of A/O inner loop fluidized bed biofilm reactors

Chen

Liao

et al. 2013

Water Science and Technology

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In this experiment, a rapid mass-transfer inner loop fluidized bed biofilm reactor (ILFBBR) was employed to treat synthetic high ammonia nitrogen-containing (NH(4)(+)-N) wastewater by shortcut nitriﬁcation-denitriﬁcation. The reactor operation was stable after a short start-up period. Ammonia oxidizing bacteria (AOB) were predominant and 65% nitrite (NO(2)(-)-N/NO(x)(-)-N) levels were achieved. During the nitriﬁcation-denitriﬁcation period, the removal rates of NH(4)(+)-N and total nitrogen (TN) reached 94 and 82%, respectively. From the material balance, it was indicated that 87% of NH(4)(+)-N was removed by shortcut nitrification. The features of ILFBBR and the beneﬁts of shortcut nitrification were combined in this experiment, and showed an excellent removal of NH(4)(+)-N from high-concentration NH(4)(+)-N wastewater.

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“…The suitable pH value for the growth of nitrate bacteria ranges from 6.0-7.5 [39]. In this study, the initial pH value was 8.18, and the final pH value was 7.5, indicating that the seawater pH value continually decreased under persistent influence from the respiration of terminal stolon after entering the dark period.…”

Section: Mechanism Of Nh 4 -N and No 2 -N Removalmentioning

confidence: 54%

Investigating the Role of Terminal Stolon of Marine Invasive Green Macroalga Caulerpa taxifolia in the Removal of Inorganic Nitrogen from Seawater

Bingxin

Wang

Chu

et al. 2022

JMSE

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The marine benthic green macroalga Caulerpa taxifolia is an invasive seaweed found in Europe, America, and Australia, and it forms into huge algal meadows on shallow seafloors with its stolon and rhizoid systems. It has bloomed along the coast of the South China Sea, causing serious environmental problems. However, its ecological impact has not been well studied. Therefore, this study investigated the changes in concentration of NH4-N and NO2-N in artificial seawater in which C. taxifolia was cultivated under laboratory conditions during the circadian rhythm. Results showed that concentrations of NH4-N and NO2-N decreased with the increase in culture time during the circadian rhythm. In 24 h, the NH4-N-removal efficiency increased during the light period, and the maximum reached 71.4%; that of NO2-N increased with time extension in the dark period, and the maximum reached 9.2%. The absorption of NH4-N and NO2-N by terminal stolon of C. taxifolia was different. NH4-N was absorbed more preferentially than NO2-N. However, there was no obvious correlation between NH4-N and NO2-N absorption. Therefore, the terminal stolon of C. taxifolia can be used to clean up inorganic nitrogen, and showed great application potential in the remediation of eutrophic waters as the algal-bacterial symbiotic system could facilitate NO2-N removal.

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Characterization of the particulate nitrite oxidase and its component activities from the chemoautotroph Nitrobacter agilis

Cited by 36 publications

References 17 publications

Energy coupling to nitrite respiration in the sulfate-reducing bacterium Desulfovibrio gigas

Energy coupling to nitrite respiration in the sulfate-reducing bacterium Desulfovibrio gigas

High NH4+-N concentration wastewater treatment by shortcut nitriﬁcation–denitriﬁcation using a system of A/O inner loop fluidized bed biofilm reactors

Investigating the Role of Terminal Stolon of Marine Invasive Green Macroalga Caulerpa taxifolia in the Removal of Inorganic Nitrogen from Seawater

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