D

Poth, Ludwig G.; Poth, Gudrun S.

doi:10.1007/978-3-322-94510-5_4

Cited by 2 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The role of the denitrification activity by ammonia oxidizers has evolved from being recognized as a side aspect of metabolism to a process of high importance for anaerobic growth (Poth & Focht, 1985;Bock et al, 1995;Schmidt et al, 2001a) as well as a pathway supplying the cells with NO (NO x cycle) (Schmidt et al, 2001a, b, 2004). Furthermore, the denitrification activity seems to be important for energy generation under oxic conditions (Table 1).…”

Section: Discussionmentioning

confidence: 99%

“…Nitrite, but not nitrate, is used as the terminal electron acceptor. Nitric oxide, nitrous oxide and dinitrogen are well-documented gaseous products of the metabolic activity of Nitrosomonas (Hooper, 1968;Poth & Focht, 1985;Poth, 1986;Abeliovich & Vonshak, 1992;Bock et al, 1995;Bodelier et al, 1996;Kester et al, 1997;Beaumont et al, 2002). Under anoxic conditions nitrite is the only electron acceptor available, and energy generation depends on the denitrification activity.…”

Section: Introductionmentioning

confidence: 99%

“…This mutant had a lower tolerance against nitrite than the wildtype cells. The denitrification activity of ammonia oxidizers has already been discussed to serve as a protection mechanism against negative effects of high nitrite concentrations (Poth & Focht, 1985;Stein & Arp, 1998). Surprisingly, the NirK-deficient strain produced more N 2 O than the wild-type strain.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Denitrification and ammonia oxidation by Nitrosomonas europaea wild-type, and NirK- and NorB-deficient mutants

Spanning²,

2004

View full text Add to dashboard Cite

The phenotypes of three different Nitrosomonas europaea strains -wild-type, nitrite reductase (NirK)-deficient and nitric oxide reductase (NorB)-deficient strains -were characterized in chemostat cell cultures, and the effect of nitric oxide (NO) on metabolic activities was evaluated. All strains revealed similar aerobic ammonia oxidation activities, but the growth rates and yields of the knock-out mutants were significantly reduced. Dinitrogen (N 2 ) was the main gaseous product of the wild-type, produced via its denitrification activity. The mutants were unable to reduce nitrite to N 2 , but excreted more hydroxylamine leading to the formation of almost equal amounts of NO, nitrous oxide (N 2 O) and N 2 by chemical auto-oxidation and chemodenitrification of hydroxylamine. Under anoxic conditions Nsm. europaea wild-type gains energy for growth via nitrogen dioxide (NO 2 )-dependent ammonia oxidation or hydrogen-dependent denitrification using nitrite as electron acceptor. The mutant strains were restricted to NO and/or N 2 O as electron acceptor and consequently their growth rates and yields were much lower compared with the wild-type. When cells were transferred from anoxic (denitrification) to oxic conditions, the wild-type strain endogenously produced NO and recovered ammonia oxidation within 8 h. In contrast, the mutant strains remained inactive.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Denitrification and ammonia oxidation by Nitrosomonas europaea wild-type, and NirK- and NorB-deficient mutants

Spanning²,

2004

View full text Add to dashboard Cite

show abstract

“…In this model, NH 2 OH oxidation to NO is modelled as consuming oxygen to maintain COD mass balance continuity, but this is in contradiction with the fact that no oxygen is actually consumed in this reaction. 11,16 Hence, the Pocquet model implies that NH 2 OH oxidation is only feasible under aerobic conditions. The ND pathway is described as a one-step process wherein HNO 2 is reduced directly to N 2 O, and the intermediate NO is ignored.…”

Section: Aob Driven N 2 O Modelsmentioning

confidence: 99%

A consilience model to describe N₂O production during biological N removal

Domingo-Félez

Smets

2016

Environ. Sci.: Water Res. Technol.

View full text Add to dashboard Cite

A mathematical model congruent with the current understanding of the biological processes occurring during wastewater treatment operations is proposed.Please check this proof carefully. Our staff will not read it in detail after you have returned it.Translation errors between word-processor files and typesetting systems can occur so the whole proof needs to be read. Please pay particular attention to: tabulated material; equations; numerical data; figures and graphics; and references. If you have not already indicated the corresponding author(s) please mark their name(s) with an asterisk. Please e-mail a list of corrections or the PDF with electronic notes attached -do not change the text within the PDF file or send a revised manuscript. Corrections at this stage should be minor and not involve extensive changes. All corrections must be sent at the same time.Please bear in mind that minor layout improvements, e.g. in line breaking, table widths and graphic placement, are routinely applied to the final version.Please note that, in the typefaces we use, an italic vee looks like this: n, and a Greek nu looks like this: ν.We will publish articles on the web as soon as possible after receiving your corrections; no late corrections will be made.Please return your final corrections, where possible within 48 hours of receipt, by e-mail to: eswater@rsc.org Queries for the attention of the authors Q3The sections have been renumbered so that they appear in numerical order. Please check that this is correct. Q4The sentence beginning "Second, the true…" has been altered for clarity, please check that the meaning is correct. Q5In the sentence beginning "The actual concentrations…", please check that all of the characters are presented correctly. Q6Ref

show abstract

D

Cited by 2 publications

References 0 publications

Denitrification and ammonia oxidation by Nitrosomonas europaea wild-type, and NirK- and NorB-deficient mutants

Denitrification and ammonia oxidation by Nitrosomonas europaea wild-type, and NirK- and NorB-deficient mutants

A consilience model to describe N₂O production during biological N removal

Contact Info

Product

Resources

About

D

Cited by 2 publications

References 0 publications

Denitrification and ammonia oxidation by Nitrosomonas europaea wild-type, and NirK- and NorB-deficient mutants

Denitrification and ammonia oxidation by Nitrosomonas europaea wild-type, and NirK- and NorB-deficient mutants

A consilience model to describe N2O production during biological N removal

Contact Info

Product

Resources

About

A consilience model to describe N₂O production during biological N removal