| | 1 | Author
| Günter Datz, GünterD. Öhler | Requires cookie* | | | Title
| Light-Dependent Changes in the Lipid and Fatty Acid Composition of Phycocyanin-Free Photosynthetic Lamellae of Synechococcus  | | | | Abstract
| The growth o f Synechococcus at different intensities o f white and red light caused changes in the pigment composition. The ratio of chlorophyll a to phycocyanin varied from 1:8,2 in LWLI-grown cells to 1:1,4 in cells grown at HW LI and to 1:15,7 in cultures exposed to HRLI. Acyl lipids were quantitatively determ ined and fatty acids o f the individual lipid classes analysed by GLC. Phycocyanin-free photosynthetic lam ellae were obtained by fractional centrifugation. No variation was found in the acyl lipid composition of the m em brane preparations. These all contained M G D G , D G D G , SQDG and PG as components. In all the lipids investigated, palmitic, hexadecenoic and octadecenoic acids m ade up to more than 90% of total fatty acids. The pattern Of these "m^jor components w ithin the lipids from the different cultures depended on the light used. N o large differences were detected between zones obtained from LWLI and HRLI isolated membranes, whereas density gradient centrifugation of those from HWLI-grown cells resulted in a completely different pattern o f bands. The variations in lipid and fatty acid composition are discussed with respect to changes observed in lipid composition of whole cells and the results reported on tem perature dependent shifts in lipid fluidity in cyanobacteria. | | | |
Reference
| Z. Naturforsch. 36c, 856—862 (1981); recieved May 25 1981 | | | |
Published
| 1981 | | | |
Keywords
| Pigmentation, Phycocyanin-Free Lamellae, Lipid and Fatty Acid Composition, Synechococcus | | | |
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| default:Reihe_C/36/ZNC-1981-36c-0856.pdf | | | | Identifier
| ZNC-1981-36c-0856 | | | | Volume
| 36 | |
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