Oryza glaberrima conditions, filling, and has a distinct nutty flavour. It is also grown for cultural reasons; for instance, it is sacred to awasena followers among the Jola people, and is a heritage variety in the United States. Crossbreeding between African and Asian rice is difficult, but there exist some crosses. Humans have independently domesticated two different rice species. African rice was domesticated from wild African rice, "Oryza barthii", while Asian rice ("Oryza sativa"), was domesticated from wild Asian rice, "Oryza rufipogon". "Oryza barthii" still grows wild in Africa, in a wide variety of open habitats. The Sahara was formerly wetter, with
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