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Effect of Storage in Darkness and in Light on the Content of Membrane Lipids of Potato Tubers
Author(s) -
LILJENBERG CONNY,
SANDELIUS ANNA STINA,
SELSTAM EVA
Publication year - 1978
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1978.tb01584.x
Subject(s) - galactolipids , thylakoid , greening , linolenic acid , darkness , composition (language) , chemistry , food science , linoleic acid , fatty acid , membrane lipids , botany , biochemistry , biology , membrane , chloroplast , ecology , linguistics , philosophy , gene
The lipid composition of tubers from the potato varieties Bintje and Desirée was investigated during storage. Storage in total dark ness after harvest gave only small changes in the amounts of triglycerides. monogalactosyl diglycerides and digalactosyl digtycerides. Storage in light resulted in changes in these lipids and in their fatty acid composition. The absolute amount and the relative content of linolenic acid in the galactolipids increased. A simultaneous and equivalent decrease in the percentage of linoleic acid took place without any marked percentage changes in the other major fatty acids. The light induced changes of the lipids, which occur simultaneously with greening of the tuber, are discussed and related to the development of thylakoid membrane systems in the plastids.