Columbian exchange As the demand in the New World grew, so did the knowledge on how to cultivate it. The two primary species used were oryza glaberrima and oryza sativa; originating from West Africa and Southeast Asia respectively. Slave holders in the New World relied upon the skills of enslaved Africans to further cultivate both species. . North and South Carolina were key places where rice was grown during the slave trade, and islands of the Caribbean like Puerto Rico and Cuba were equally great centers of production. Enslaved Africans brought their knowledge of water control, milling, winnowing, and other general agrarian
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