发明名称 |
4-KETOCAROTENOIDS IN FLOWER PETALS |
摘要 |
<p>The formation of a carotenoid compound containing a 4-keto-.beta.-ionene rin g such as astaxanthin or canthaxanthin in flowers, and particularly in the corolla and reproductive parts of a flower of a higher plant whose flowers produce a carotenoid compound containing a .beta.-ionene ring such as .beta. - carotene or zeaxanthin, but otherwise do not produce astaxanthin or canthaxanthin is disclosed. One or more genes controlled by a promoter are inserted (transformed) into a higher plant. The inserted gene encodes a chimeric enzyme including (a) a carotenoid-forming enzyme that is at least a ketolase. That gene is operatively linked to (b) a plastid-directed transit peptide. Some higher plants to be transformed produce at least zeaxanthin or .beta.-carotene in their flowers prior to transformation, whereas other plan ts produce little if any colored carotenoid pigments prior to transformation an d are transformed with a cassette of carotenoids-forming genes. Methods of transformation and use of the transformed plants are described.</p> |
申请公布号 |
CA2479365(A1) |
申请公布日期 |
2003.10.02 |
申请号 |
CA20032479365 |
申请日期 |
2003.03.21 |
申请人 |
BALL HORTICULTURAL COMPANY |
发明人 |
HAUPTMANN, RANDAL;ESCHENFELDT, WILLIAM;EISENREICH, ROBERT;KHAMBATTA, ZUBIN |
分类号 |
A01H5/00;C12N15/09;C12N15/82;(IPC1-7):A01H5/00;C12N15/52;C12P23/00 |
主分类号 |
A01H5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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