Membrane Phase Transitions in Synechococcus sp. PCC7942 Cells Can be Probed with Chlorophyll a Fluorescence

  • R Gasanov
  • K Starnatakis
  • G C Papageorgiou


The temperatures for liquid-crystalline to phase-separated state transitions of cyanobacterial membrane lipids have been determined by several methods and were found to lie 6–11 °C higher in thylakoid membranes (TM) than in plasma membranes (PM). PM and TM transition temperatures were higher in cells cultured at a higher temperature and lower in cells cultured at a lower temperature (1). Unsaturated fatty acids are more abundant, and membranes more fluid at lower culturing temperature (2).

Key words

membrane fluidity plasma membranes thylakoid membranes temperature acclimation osmotic quenching 


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Copyright information

© Springer Science+Business Media Dordrecht 1998

Authors and Affiliations

  • R Gasanov
    • 1
    • 2
  • K Starnatakis
    • 1
  • G C Papageorgiou
    • 1
  1. 1.NRC DemokritosInstitute of BiologyAthensGreece
  2. 2.Department of BioenergeticsInstitute of Botany Azerbaijan Academy of SciencesBakuAzerbaijan

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