Linked Life Data

15176741

Source:http://linkedlifedata.com/resource/pubmed/id/15176741

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2004-6-4
pubmed:abstractText
We herein report the diversity and relative abundance of chemolithotrophic nitrifying bacteria in a continuous-flow bioreactor using 16S-ribosomal RNA quantitative dot-blot hybridizations. About 14.9% of the total bacterial population, determined by epifluorescence microscopy in the bioreactor suspended phase, was represented by nitrifying bacteria. Of this fraction, ammonia- and nitrite-oxidizing bacteria accounted for 10% and 90%, respectively, the latter group being mostly Nitrospira-like. On the other hand, the nitrifiers adhesion/colonization capacity on polyethylene surfaces as evaluated by scanning electron microscopy and hybridizations analyses was 12.6% of the total bacterial community adhered. Finally, in spite of the relatively small contribution of nitrifiers to the total bacterial abundance in the bioreactor, we determined a mean ammonia removal rate of 170.48 +/- 8.29 mg N l(-1) d(-1); thus, the low percentage of ammonia-oxidizing bacteria, was not limiting the bioreactor performance.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0959-3330
pubmed:author
pubmed:issnType
Print
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
261-72
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Molecular analysis of the community structure of nitrifying bacteria in a continuous-flow bioreactor.
pubmed:affiliation
Departamento de Microbiologá, Casilla 160-C, Correo 3, Universidad de Concepción, Concepción, Chile.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't