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Applied and Environmental Microbiology, July 2008, p. 4543-4549, Vol. 74, No. 14
0099-2240/08/$08.00+0     doi:10.1128/AEM.02041-07
Copyright © 2008, American Society for Microbiology. All Rights Reserved.

Coordinated Regulation of Cold-Induced Changes in Fatty Acids with Cardiolipin and Phosphatidylglycerol Composition among Phospholipid Species for the Food Pathogen Listeria monocytogenes{triangledown},{dagger}

S. K. Mastronicolis,1* N. Arvanitis,1 A. Karaliota,2 P. Magiatis,3 G. Heropoulos,4 C. Litos,2 H. Moustaka,1 A. Tsakirakis,1 E. Paramera,1 and P. Papastavrou1

Food Chemistry Laboratory,1 Inorganic Chemistry Laboratory, Chemistry Department,2 Laboratory of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, University of Athens, Panepistimiopolis Zografou 15771, Athens, Greece,3 National Hellenic Research Foundation, Institute of Organic and Pharmaceutical Chemistry, 48 Vas. Constantinou Ave., Athens, Greece4

Received 6 September 2007/ Accepted 14 May 2008

We present here the structural identification of four phospholipid (Phl) classes in Listeria monocytogenes, the fatty acid (FA) composition for each individual Phl species, and a description of cold-induced FA changes. Cardiolipin (48.5%) and phosphatidylglycerol (18.1%) are dominated by anteiso-FA, and the previously recognized branched FA chain shortening by cold was observed singularly in these Phls. Phosploaminolipid (19.9%) and phosphatidylinositol, (9.1%) are significantly different, containing significant amounts of straight-chain FA. These findings are supported by nuclear magnetic resonance analysis.

* Corresponding author. Mailing address: Food Chemistry Laboratory, Department of Chemistry, Panepistimiopolis Zografou 15771, Athens, Greece. Phone: 30 210 7274326. Fax: 30 210 7274476. E-mail: smastro{at}chem.uoa.gr

{triangledown} Published ahead of print on 23 May 2008.

{dagger} Supplemental material for this article may be found at http://aem.asm.org/.

Applied and Environmental Microbiology, July 2008, p. 4543-4549, Vol. 74, No. 14
0099-2240/08/$08.00+0     doi:10.1128/AEM.02041-07
Copyright © 2008, American Society for Microbiology. All Rights Reserved.





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