Linked Life Data

11959441

Source:http://linkedlifedata.com/resource/pubmed/id/11959441

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2002-4-17
pubmed:abstractText
Salt tolerance in Saccharomyces cerevisiae is a complex trait, involving regulation of membrane polarization, Na(+) efflux and sequestration of Na(+) in the vacuole. Since transmembrane transport energized by H(+)-adenosine triphosphatases (ATPases) is common to all of these tolerance mechanisms, the objective of this study was to characterize the responses of the plasma membrane H(+)-ATPase, vacuolar H(+)-ATPase and mitochondrial F(1)F(0)-ATPase to NaCl stress. We hypothesized that since the vacuolar ATPase is responsible for generating the proton motive force required for import of cations (such as Na(+)) into the vacuole, strains lacking this activity should be hypersensitive to NaCl. We found that strains lacking vacuolar ATPase activity were in fact hypersensitive to NaCl, while strains lacking ATP synthase were not. This effect was specific to the ionic component of NaCl stress, since the mutant strains were indistinguishable from wild-type and complemented strains in the presence of sorbitol.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0378-1097
pubmed:author
pubmed:issnType
Print
pubmed:day
5
pubmed:volume
208
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
227-32
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Vacuolar H(+)-ATPase, but not mitochondrial F(1)F(0)-ATPase, is required for NaCl tolerance in Saccharomyces cerevisiae.
pubmed:affiliation
Department of Biological Sciences, CW-405 Biological Sciences Building, University of Alberta, Edmonton, AB, Canada T6G 2E9.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't