Plants expressing Δ6-desaturase genes and oils from these plants containing PUFAS and method for producing unsaturated fatty acids

摘要

The present invention relates to an improved process for the preparation of unsaturated fatty acids and to a process for the preparation of triglycerides with an increased content of unsaturated fatty acids. The invention relates to the generation of transgenic microorganism, with an increased content of fatty acids, oils or lipids with Δ6 double bonds owing to the expression of a moss Δ6-desaturase. The invention furthermore relates to transgenic organisms comprising a Δ6-desaturase gene, and to the use of unsaturated fatty acids ort of the triglycerides with an increased content if unsaturated fatty acids prepared in the process.

主权项

1. A process for producing oil, lipid or fatty acids containing unsaturated fatty acids, comprising:
obtaining seeds of a transgenic plant expressing a nucleic acid encoding a polypeptide with Δ6-desaturase activity; and b) extracting oil, lipid or fatty acids from the seeds, wherein said nucleic acid is selected from the group consisting of: i) a nucleic acid comprising the nucleotide sequence of SEQ ID NO: 1; ii) a nucleic acid encoding a polypeptide having the amino acid sequence of SEQ ID NO: 2; and iii) a nucleic acid encoding a polypeptide having at least 90% sequence identity to the amino acid sequence of SEQ ID NO: 2.