Chemistry: molecular biology and microbiology – Treatment of micro-organisms or enzymes with electrical or... – Modification of viruses
Patent
1992-03-09
1995-07-11
Benzion, Gary
Chemistry: molecular biology and microbiology
Treatment of micro-organisms or enzymes with electrical or...
Modification of viruses
4351721, 47 58, 536 241, 536 245, C12N 1500, A01H 100
Patent
active
054320682
ABSTRACT:
An inducible promoter is used to regulate expression of a gene which is known to be critical to male fertility. The selected gene's control sequences are modified so that it is normally "off" and as a result the plants are male sterile. When it is desired to reproduce the male sterile plants, male fertility is restored by treating the plants with a non-phytotoxic chemical which induces expression of the critical gene. A critical gene is one which affects flavonol production and in particular compounds of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.7, and R.sub.8, are hydrogen, hydroxyl or alkoxy having from 1 to 4 carbon atoms. Particularly preferred flavonols include galangin, kaempferol, iso-rhamnetin, quercetin and morin.
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Albertsen Marc C.
Beach Larry R.
Howard John
Huffman Gary A.
Taylor Loverine
Benzion Gary
Pioneer Hi-Bred International , Inc.
Sweeney Patricia A.
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