Fatty acid (FA) composition of total lipids in embryogenic and nonembryogenic calli of Siberian larch (Larix sibirica Ledeb.) was investigated by the method of GC-MS. We detected a high content of oleic acid in total lipids of embryogenic cell culture (32–56% by weight of total FA), which apparently depends on a high activity of acyl carrier protein (stearoyl-ACP-Δ9-desat-urase). At the same time, activity of Δ12-desaturase in the cells of embryogenic calli was considerably (2–3 times) lower than in nonembryogenic calli. We discuss a possibility that concentration of FA (oleic and linoleic acids) may be used as a marker of embryogenic potential when promising cell lines of Siberian larch are screened in the stage of early embryogenesis.
Russian Journal of Plant Physiology – Springer Journals
Published: Apr 1, 2016
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