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Polar Biology

, Volume 24, Issue 5, pp 386–388 | Cite as

Maintenance of membrane fluidity in Antarctic bacteria

  •  M. Chattopadhyay
  •  M. Jagannadham
Short Note

Abstract.

Increase in the synthesis of membrane-fluidizing (such as unsaturated) fatty acids in cold-adapted bacteria is well documented. More recently, a polar carotenoid was found to rigidify synthetic membranes in an in vitro study. Enhanced biosynthesis of some fatty acids that increase membrane fluidity, and also of polar carotenoids has been evidenced in one Gram-positive and one Gram-negative psychrotrophic bacterium, isolated from Antarctic soil. A role of carotenoids in homeoviscous adaptation of membrane fluidity has been postulated.

Keywords

Carotenoid Membrane Fluidity Antarctic Soil Synthetic Membrane Psychrotrophic Bacterium 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2001

Authors and Affiliations

  •  M. Chattopadhyay
    • 1
  •  M. Jagannadham
    • 1
  1. 1.Centre for Cellular and Molecular Biology, Hyderabad 500 007, India

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