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A study of moss (Marchantia polymorpha) thylakoid membrane lipids in monolayers.

Authors
  • Volchenkova, T A
  • Kalabina, N A
  • Schaefer, C
  • Zubov, V P
Type
Published Article
Journal
Membrane & cell biology
Publication Date
Jul 01, 2001
Volume
14
Issue
5
Pages
579–585
Identifiers
PMID: 11699862
Source
Medline
License
Unknown

Abstract

Monolayers of seven fractions of natural lipids (phosphatidyl inositol, sulfoquinovosyl diacylglycerol, phosphatidylcholine, digalactosyl diacylglycerol, phosphatidyl glycerol, phosphatidylethanolamine, monogalactosyl diacylglycerol), isolated from the photoautotrophic cell culture of the moss Marchantia polymorpha grown under normal and light-stress conditions, have been prepared for the first time. We have shown that the high-intensity light affects the area occupied by the lipid molecule. In the case of digalactosyl diacylglycerol and phosphatidyl glycerol fractions, after the light stress the area significantly increased from 0.50 to 0.80 nm2 and from 0.47 to 0.63 nm2, respectively, and in the case of the sulfoquinovosyl diacylglycerol fraction, the area decreased from 0.40 to 0.32 nm2. These results are in agreement with our previous data on the redistribution of the double bonds in the aliphatic chains of these lipids and can be used to characterize the state of the lipid bilayer of the thylakoid membranes.

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