Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1997-6-24
pubmed:databankReference
pubmed:abstractText
Subpopulations of mutant mitochondria appear to play important roles in degenerative processes associated with aging and are characteristic of many mitochondrial diseases. We have generated mutants carrying plasmid insertions in the Dictyostelium discoideum mitochondrial genome and have shown that phototaxis and thermotaxis in these mutants is more sensitive than growth and division to the presence of a subpopulation of defective mitochondria. This could result from direct impairment of a mitochondrial role in signal transduction, or indirectly from the effects of energy depletion. Either way, signal transduction may be the first cellular activity to be compromised by the accumulation of defective mitochondria in age-related tissue dysfunction and in mitochondrial disease.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
8
pubmed:volume
234
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
39-43
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Mitochondrial mutations impair signal transduction in Dictyostelium discoideum slugs.
pubmed:affiliation
School of Microbiology, La Trobe University, Bundoora, Victoria, Australia.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't