Distribution of fatty acids during germination of cottonseeds

Abstract

Gas chromatographic determination of the fatty acids in the seeds of cottonseed (Gossypium sp.) showed linoleic, palmitic, oleic, and stearic acids, with linoleic acid being the major component. Changes in the composition of fatty acids during various stages of germination were measured in the cotyledons and in the roots. A decrease in the content of all the fatty acids and an 8-fold increase in the moisture content of the cotyledons were observed during the 10 days of germination. There were no significant changes in the fatty acid contents of the roots with the exception of those in linoleic acid which increased by 50 percent during 4-10 days of germination. The possible significance of these changes is discussed.

Triacylglycerol Metabolization during Germination of Sea Buckthorn Seeds

“…Earlier, similar results were obtained in the experiments with cotton, hazel, and yellow foxtail seeds, in which this value increased 3-8-fold during germination [16,22,23]. At the same time, a dry weight decrease, caused by reserve consumption during the sea buckthorn seedling growth, proceeded steadily, but at a slow rate.…”

“…At the same time, a dry weight decrease, caused by reserve consumption during the sea buckthorn seedling growth, proceeded steadily, but at a slow rate. A slow mobilization of cotyledon reserves was also observed in the experiments with linseed [12], hazel [16], tobacco [24], yellow foxtail [23], and two cruciferous species [11]; however, in corn [25], cotton [22], nut pine [9], and water melon [26] seeds, their dry weight contents decreased two-or even threefold by the end of germination. The causes for differences between various plant species in this respect are still unknown at present.…”