Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2000-12-28
pubmed:abstractText
Changes in the cell envelopes in response to acidity were studied in two strains of Mesorhizobium loti differing in their tolerance to pH. When the less acid-tolerant strain LL22 was grown at pH 5.5, membrane phosphatidylglycerol decreased and phosphatidylcholine increased, compared with cells grown at pH 7.0. On the other hand, when the more acid-tolerant strain LL56 was grown at pH 5.5, phosphatidylglycerol, phosphatidylethanolamine, and lysophospholipid decreased 25%, 39%, and 51% respectively, while phosphatidyl-N-methylethanolamine and cardiolipin increased 26% and 65% respectively compared with cells grown at pH 7.0. The longest-chain fatty acids (19:0 cy and 20:0) increased in both strains at pH 5.5, while in LL56 these fatty acids increased still further at pH 4.0. Variations in other wall and membrane properties such as cell hydrophobicity, lypopolysaccharides, and protein composition of the outer membrane in relation to acid pH are also discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0343-8651
pubmed:author
pubmed:issnType
Print
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
329-34
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Cellular envelopes and tolerance to acid pH in Mesorhizobium loti.
pubmed:affiliation
CIBYF.Cátedra de Microbiología, Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, 1417 Buenos Aires, Argentina.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't