Linked Life Data

20202830

Source:http://linkedlifedata.com/resource/pubmed/id/20202830

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
14
pubmed:dateCreated
2010-4-12
pubmed:abstractText
Strain HNR, isolated from a Membrane Bioreactor (MBR), demonstrates a surprising ability to convert ammonium to nitrogen gas under aerobic conditions while growing heterotrophically. On the basis of phylogenetic analysis of the 16S rRNA gene sequence, strain HNR was related to Acinetobacter calcoaceticus (98.9% identity). Nitrogen balance during heterotrophic growth with 120mg/l of NH(4)(+)-N showed that 40.2% of NH(4)(+)-N was in the form of N(2) and 52.1% was found in biomass. Only a trace production was either nitrite or nitrate. Further tests demonstrated that nitrite and nitrate were not reduced by strain HNR under aerobic conditions. Neither nitrate reductase (NR) nor nitrite reductase (NiR) activity was detectable in the aerobic reaction mixtures. However, a 0.051 U activity of hydroxylamine oxidase (HAO) was observed. The nitrogen removal was speculated to be via a hydroxylamine intermediate instead of nitrite, which was different from the conventional nitrogen removal pathway.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1873-2976
pubmed:author
pubmed:copyrightInfo
Copyright (c) 2010 Elsevier Ltd. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
101
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5194-200
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Heterotrophic nitrogen removal by a newly isolated Acinetobacter calcoaceticus HNR.
pubmed:affiliation
School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't