New Rice for Africa the Fourth Tokyo International Conference on African Development (TICAD-IV) in 2008. The new rice varieties, which are suited to drylands, were distributed and sown on more than 200,000 hectares during the last five years in several African countries, notably Guinea, Nigeria, Mali, Benin, Côte d'Ivoire, and Uganda, according to the Africa Rice Center. Though this represents a major advance, it is still projected to fall short of meeting the growing demand for rice as a food staple. African rice "Oryza glaberrima" has been cultivated for 3,500 years and is well adapted to the African environment. African rice has profuse vegetative
Arogenate dehydratase hybrida", "Sorghum bicolor"", "and "Oryza sativa"", "which are all considered higher-order plants. "Erwinia herbicola"" and Pseudomonas aeruginosa"" "are known to" "have homologues for cyclohexadienyl dehydratase. Of the plants with ADT homologues, both "Arabidopsis thaliana "and "Petunia hybrida "are known to have paralogues for the gene (six and three, respectively). Arogenate dehydratase Arogenate dehydratase (ADT) (EC 4.2.1.91) is an enzyme that catalyzes the chemical reaction Hence, this enzyme has one substrate, L-arogenate, but 3 products:L-phenylalanine, HO, and CO. Certain forms of the protein have the potential to catalyze a second reaction, L-prephenate → L-phenylpyruvate + HO + CO This enzyme participates