Linked Life Data

11713252

Source:http://linkedlifedata.com/resource/pubmed/id/11713252

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2002-1-14
pubmed:abstractText
The induction of fungal denitrification by Fusarium oxysporum requires a minimal amount of O(2), although excess O(2) completely represses this process (Zhou, Z., Takaya, N., Sakairi, M. A. C., and Shoun, H. (2001) Arch. Microbiol. 175, 19-25). Here we describe another metabolic mechanism of nitrate in fungal cells, termed ammonia fermentation, that supports growth under conditions more anoxic than those of denitrification. The novel nitrate metabolism of eukaryotes consists of the reduction of nitrate to ammonium coupled with the catabolic oxidation of electron donors to acetate and substrate-level phosphorylation. F. oxysporum thus has two pathways of dissimilatory nitrate reduction that are alternatively expressed in response to environmental O(2) tension. F. oxysporum prefers O(2) respiration when the O(2) supply is sufficient. We discovered that this fungus is the first eukaryotic, facultative anaerobe known to express one of three distinct metabolic energy mechanisms closely depending on environmental O(2) tension. We also showed that ammonia fermentation occurs in many other fungi that are common in soil, suggesting that facultative anaerobes are widely distributed among fungi that have been considered aerobic organisms.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
18
pubmed:volume
277
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1892-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Ammonia fermentation, a novel anoxic metabolism of nitrate by fungi.
pubmed:affiliation
Institute of Applied Biochemistry, University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't