Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2010-6-29
pubmed:abstractText
The thermotropic transition of plasma membrane of Dactylis glomerata was studied by using fluorescence polarization of embedded fluorophore, 1,6-diphenyl-1,3,5-hexatriene. Under the presence of 35% ethylene glycol, reversible thermotropic transitions were observed in isolated plasma membrane vesicles in nearly the same temperature range as the temperature of freezing injury to cells. In liposomes prepared from isolated plasma membranes, however, the thermotropic transitions occurred at much lower temperatures in comparison with those of intact membrane vesicles. Following treatment with pronase, the thermotropic transition also shifted downward.Thus, the thermotropic properties of plasma membranes appeared to be dependent on the membrane proteins. In vitro freezing of the isolated plasma membrane vesicles without addition of any cryoprotectant, such as sorbitol, resulted in an irreversible alteration both in the fluorescence anisotropy values and the temperatures for the thermotropic transition, suggesting an irreversible alteration in the membrane structure, presumably changes in lipid-protein interactions and protein conformation.
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/16663597-13671378, http://linkedlifedata.com/resource/pubmed/commentcorrection/16663597-16662416, http://linkedlifedata.com/resource/pubmed/commentcorrection/16663597-16662553, http://linkedlifedata.com/resource/pubmed/commentcorrection/16663597-16662942, http://linkedlifedata.com/resource/pubmed/commentcorrection/16663597-16663596, http://linkedlifedata.com/resource/pubmed/commentcorrection/16663597-365237, http://linkedlifedata.com/resource/pubmed/commentcorrection/16663597-420797, http://linkedlifedata.com/resource/pubmed/commentcorrection/16663597-577184, http://linkedlifedata.com/resource/pubmed/commentcorrection/16663597-577185, http://linkedlifedata.com/resource/pubmed/commentcorrection/16663597-6249340, http://linkedlifedata.com/resource/pubmed/commentcorrection/16663597-6617234, http://linkedlifedata.com/resource/pubmed/commentcorrection/16663597-7171597, http://linkedlifedata.com/resource/pubmed/commentcorrection/16663597-7370232, http://linkedlifedata.com/resource/pubmed/commentcorrection/16663597-7430161, http://linkedlifedata.com/resource/pubmed/commentcorrection/16663597-99167
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
May
pubmed:issn
0032-0889
pubmed:author
pubmed:issnType
Print
pubmed:volume
75
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
38-42
pubmed:dateRevised
2010-9-15
pubmed:year
1984
pubmed:articleTitle
Studies on Freezing Injury of Plant Cells: I. Relation between Thermotropic Properties of Isolated Plasma Membrane Vesicles and Freezing Injury.
pubmed:affiliation
The Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan 060.
pubmed:publicationType
Journal Article