Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2010-6-29
pubmed:abstractText
This study was undertaken to quantify the effect of aluminum and calcium on membrane permeability. The influence of Ca(2+) (0.2-3.7 millimolar) and Al(3+) (0-3.7 millimolar) on the permeability of root cortical cells of Quercus rubra was measured using three nonelectrolytes (urea, methyl urea, and ethyl urea) as permeators of progressively increasing lipid solubility. Water permeability was also measured. Al(3+) (a) increased membrane permeability to the nonelectrolytes, (b) decreased the membrane's partiality for lipid permeators, and (c) decreased membrane permeability to water. Ca(2+) had effects on permeability that were opposite to those of Al(3+). When Al(3+) and Ca(2+) were tested in combination, these opposite effects counteracted each other. The results suggest that Al(3+) altered the architecture of membrane lipids.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Jan
pubmed:issn
0032-0889
pubmed:author
pubmed:issnType
Print
pubmed:volume
83
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
159-62
pubmed:dateRevised
2010-9-14
pubmed:year
1987
pubmed:articleTitle
Al and Ca Alteration of Membrane Permeability of Quercus rubra Root Cortex Cells.
pubmed:affiliation
Department of Biology, Nankai University, Tianjin, Peoples Republic of China.
pubmed:publicationType
Journal Article