PMID: 9431681Jan 1, 1997Paper

Fatty acid distribution and lipid metabolism in developing seeds of laurate-producing rape (Brassica napus L.)

Planta
E WibergS Stymne

Abstract

The fatty acid composition and content of membrane and storage lipids of two transgenic laurate-producing rape (Brassica napus L.) lines were monitored during seed development. The two lines, the medium-laurate (ML) line and the high-laurate (HL) line, accumulated 34 mol% and 55 mol% of laurate in their seed triacylglycerols, respectively. The diacylglycerols contained about 17 and 33 mol% of laurate in the ML- and HL-lines, respectively, from the mid-stage of seed development up to seed maturity. The ML-line showed a maximal relative laurate content in phosphatidylcholine (17 mol%) at the mid-stage of seed development whereafter the content decreased to 2.7 mol% with seed maturity. The laurate content in phosphatidylcholine was observed to remain high (26 mol%) in the HL-line from the mid-stage to the end of triacylglycerol deposition. Thereafter, the relative content decreased and reached 6.6 mol% in the mature seeds. There was an enhanced activity of lauroyl-phosphatidylcholine-metabolizing enzymes in the seed membranes from laurate-producing lines compared with control lines, which might explain the decrease seen in laurate content in phosphatidylcholine during seed maturation. A comparison of the laurate distribution in th...Continue Reading

Citations

Dec 7, 2000·Progress in Lipid Research·J P Hazebroek
Apr 21, 1999·Current Opinion in Biotechnology·D J Murphy
Oct 29, 1999·European Journal of Biochemistry·K Athenstaedt, G Daum
May 5, 2001·Annual Review of Plant Physiology and Plant Molecular Biology·Toni Voelker, Anthony J Kinney
Mar 9, 2000·Trends in Plant Science·A A MillarL Kunst
Jun 24, 2020·The Plant Journal : for Cell and Molecular Biology·Yongtai YinMaoteng Li

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