Polynucleotide compositions encoding S-adenosyl-L-methionine:phosphoethanolamine N-methyltransferase and methods for modulating lipid biosynthesis in plants
US6979732B1 · kind B1 · utility
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Key dates
| Filing date | Mar 15, 2000 |
| Grant date | Dec 27, 2005 |
| Priority date | — |
| Expiry date | Mar 15, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N15/8247
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Disclosed are compositions and methods for increasing the nutritional value of plants and plant parts. In illustrative embodiments PEAMT and ΔPEAMT polynucleotide and polypeptide compositions are disclosed as well as their use in modulating the levels of lipid compounds, and particularly, regulating the level of phosphatidylcholine, and its precursors in plants and seeds derived therefrom. Also disclosed are methods for modulating the level of glycine betaine and choline-O-sulfate in cells, and increasing the tolerance of transformed plants to osmotic and cryogenic stress.
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