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Lipid-metabolism in the brown marine-algae fucus-vesiculosus and ascophyllum-nodosum

Jones, Lesley ORCID: https://orcid.org/0000-0002-3007-4612 and Harwood, J. 1993. Lipid-metabolism in the brown marine-algae fucus-vesiculosus and ascophyllum-nodosum. Journal of Experimental Botany 44 (264) , pp. 1203-1210. 10.1093/jxb/44.7.1203

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Abstract

Lipid metabolism and environmental effects on this process have been studied in the marine brown algae Fucus vesiculosus and Ascophyllum nodosum. These algae showed very similar patterns of lipid metabolism during 24 h incubations. Labelling from [1-C-14]acetate showed the major labelled lipids to be the beta-alanine ether lipid and the neutral lipid fraction in both algae. Of the glycolipids, only sulphoquinovosyldiacylglycerol was well labelled and the phosphoglycerides were all poorly labelled. The major labelled fatty acids were palmitate and oleate, again in both algae, although Fucus vesiculosus also showed significant labelling of stearate and behenate. Although the amount of fatty acid labelling increased with time, the proportion of label in palmitate and oleate remained approximately constant. Very long chain fatty acids (arachidic, behenic) were increasingly labelled with time. Lowered incubation temperatures decreased labelling of the saturated fatty acids. Cu2+ increased the proportion of oleate labelled in both algae, and of linoleate in Fucus vesiculosus. This cation decreased the percentage labelling of stearate and myristate in Ascophyllum nodosum. Lipid metabolism in Ascophyllum nodosum was more sensitive to raised Cu2+ levels than in Fucus vesiculosus.

Item Type: Article
Date Type: Publication
Status: Published
Schools: MRC Centre for Neuropsychiatric Genetics and Genomics (CNGG)
Medicine
Subjects: R Medicine > R Medicine (General)
Publisher: Oxford University Press
ISSN: 0022-0957
Last Modified: 04 Mar 2023 03:00
URI: https://orca.cardiff.ac.uk/id/eprint/80777

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