Polynucleotides encoding choline monooxygenase and plants transformed therewith
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United States of America Patent
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Oct 30, 2001
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N/A
app pub date -
Jan 8, 1998
filing date -
Jan 8, 1997
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Abstract
A full length choline monooxygenase (CMO) cDNA was cloned from spinach and used to transform plants which do not naturally express CMO. A method is presented to improve stress tolerance of crops following engineering of CMO and BADH in plants that lack glycine betaine accumulation. Also provided are fragments useful as probes to isolate other CMO-type genes, and antisense sequences which inhibit the production of CMO. Reduction of glycine betaine as a consequence of antisense expression of CMO in species naturally accumulating glycine betaine, improves the transgenic plant's tolerance toward pathogens and pests and/or enhances its nutritional quality.
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