National Research Council of Canada

Adrian John Cutler

Suzanne R Abrams

Patricia A Rose

Ken M Nelson

Kenneth M Nelson

Fengling Li

Michele C Loewen

Bo Lei

Jason Boyd

John J Balsevich

James Nyangulu

Yuanzhu Gai

Bicyclic abscisic acid (ABA) analogs of Formula (I) and (II) and the process for their production are disclosed. The bicyclic ABA analogs include the structural elements and functional groups of the parent molecule that are required for activity, and have an aromatic ring fused to the ring replacing the vinyl methyl group of absicisie acid. Methods for using the bicyclic ABA analogs to inhibit cell growth and seed germination are also disclosed. 

Synthesis and biological activity of bicyclic ABA analogs

The present invention describes a novel plant hydroxysteroid dehydrogenase gene, (HSD) that is involved in a variety of physiological processes in higher plants. The novel gene product has a degree of similarity to mammalian &#x3b2;-11-hydroxysteroid dehydrogenase genes, known to control the conversion of steroids from active to inactive forms. In plants, the over expression of the HSD gene results in transgenic plants with significantly greater biomass and vigor, increased seed yield, increased tolerance to salt and a suppression of ABA mediated seed dormancy.

Hydroxysteroid dehydrogenase gene for alteration of plant phenotype

Inhibitors of a 9-cis epoxycarotenoid dioxygenase

Hyperabas: biologically active abscisic acid analogs with unsaturated

Growing community of inventors

Saskatoon, Canada

Adrian John Cutler