Triglyceride metabolism in germinating Andropogon gayanus seeds |
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Authors: | Paul M Williams Bernard N Bowden |
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Institution: | Department of Applied Biology, Chelsea College, Hortensia Road, London SW10 0QX UK |
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Abstract: | Seed triglycerides of Andropogon gayanus contained 17 fatty acid moieties, principally palmitic, oleic and linoleic acids. These were distributed in an essentially random manner amongst the triglycerides to form the following main types: POL, PLL, OOL, LLO and LLL. Triglycerides decreased during both light and dark germination but there was no evidence for selective hydrolysis. Free fatty acids appear to be derived from triglyceride hydrolysis but the free and triglyceride fatty acid composition differed. Less palmitic, oleic and linoleic acids and more stearic, linolenic and C20-acids were found in the free state than combined in the triglycerides. Free fatty acids did not accumulate during germination. |
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Keywords: | Gramineae savannah grass triglycerides metabolism germination |
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