Chemistry: molecular biology and microbiology – Treatment of micro-organisms or enzymes with electrical or... – Modification of viruses
Patent
1994-01-11
1998-03-31
Rories, Charles C. P.
Chemistry: molecular biology and microbiology
Treatment of micro-organisms or enzymes with electrical or...
Modification of viruses
435 911, 4351721, 435183, 4353201, 435375, 435377, 800200, 800205, 800230, 800235, 800250, 47 58, 47DIG1, C12N 1582, C12N 510, C12N 900, A01H 100
Patent
active
057337594
ABSTRACT:
Plants in which flavonol activity has been impaired are conditionally male fertile (CMF), and male fertility can be rescued or restored by providing fertility restoring flavonols at pollen sites in the plant. Although viable pollen is produced by flavonol deficient plants, pollen germination and tube growth are severely reduced both in vivo and in vitro, resulting in plants which are self sterile. However, by contacting pollen of the plant with an amount of a fertility restoring flavonol effective to enhance germination of the pollen, full pollen germination and tube growth may be restored. Useful fertility restoring flavonols include 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 3 carbon atoms. Particularly preferred flavonols include galangin, kaempferol, iso-rhamnetin, quercetin and morin.
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Mo Yinyuan
Taylor Loverine P.
Rories Charles C. P.
Washington State University Research Foundation
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