This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Citing Articles via Web of Science (76) Citing Articles via Google Scholar Google Scholar Articles by Wada, H. Articles by Murata, N. Search for Related Content PubMed PubMed Citation Articles by Wada, H. Articles by Murata, N. Agricola Articles by Wada, H. Articles by Murata, N.

Environmental and Stress Physiology

Temperature-Induced Changes in the Fatty Acid Composition of the Cyanobacterium, Synechocystis PCC6803 ¹

National Institute for Basic Biology, Myodaiji, Okazaki 444, Japan

Changes in glycerolipid and fatty acid composition with a change in growth temperature were studied in the cyanobacterium, Synechocystis PCC6803. Under isothermal growth conditions, temperature did not significantly affect the composition of the various classes of lipids, but a decrease in temperature altered the degree of unsaturation of C₁₈ acids at the sn-1 position, but not that of C₁₆ acids at the sn-2 position of the glycerol moiety in each class of lipids. When the growth temperature was shifted from 38°C to 22°C, the desaturation of C₁₈ acids, but not that of C₁₆ acids, was stimulated. The desaturation of fatty acids occurred only in the light and was inhibited by chloramphenicol, rifampicin and 3-(3,4-dichlorophenyl)-1, 1-dimethylurea, but not by cerulenin, an inhibitor for fatty acid synthesis. These findings suggest that desaturase activities are induced after a shift from a higher to a lower temperature, and that the desaturation of fatty acids is connected with the reactions involved in photosynthetic electron transport.

This article has been cited by other articles:

				W. Yamori, K. Noguchi, Y. Kashino, and I. Terashima The Role of Electron Transport in Determining the Temperature Dependence of the Photosynthetic Rate in Spinach Leaves Grown at Contrasting Temperatures Plant Cell Physiol., April 1, 2008; 49(4): 583 - 591. [Abstract] [Full Text] [PDF]

				M. Kis, O. Zsiros, T. Farkas, H. Wada, F. Nagy, and Z. Gombos Light-induced expression of fatty acid desaturase genes PNAS, April 14, 1998; 95(8): 4209 - 4214. [Abstract] [Full Text] [PDF]

				Y. Yano, A. Nakayama, K. Ishihara, and H. Saito Adaptive Changes in Membrane Lipids of Barophilic Bacteria in Response to Changes in Growth Pressure Appl. Envir. Microbiol., February 1, 1998; 64(2): 479 - 485. [Abstract] [Full Text]

				C. SOMERVILLE and J. BROWSE Plant Lipids: Metabolism, Mutants, and Membranes Science, April 5, 1991; 252(5002): 80 - 87. [Abstract] [PDF]

				A. M. Calvo, H. W. Gardner, and N. P. Keller Genetic Connection between Fatty Acid Metabolism and Sporulation in Aspergillus nidulans J. Biol. Chem., July 6, 2001; 276(28): 25766 - 25774. [Abstract] [Full Text] [PDF]