Rice production in the United States by 382 pounds per acre. Six states now account for over 99% of all rice grown in the US. These are Arkansas, California, Louisiana, Mississippi, Missouri and Texas. As of 2003, Arkansas topped the list with a production level of 213 million bushels against a total production of 443 million bushels in the country, and the annual per capita consumption reported is in excess of 28 pounds. The earliest types grown in Carolina were the African "Oryza glaberrima", the prized "Carolina Gold". Asian "Oryza sativa" was "Carolina White". After the total decline of rice cultivation in Carolina, "Carolina Gold" is
12-oxophytodienoate reductase 12-oxophytodienoate reductase 12-oxophytodienoate reductase (OPRs) is an enzyme of the family of Old Yellow Enzymes (OYE). OPRs are grouped into two groups: OPRI and OPRII – the second group is the focus of this article, as the function of the first group is unknown, but is the subject of current research. The OPR enzyme utilizes the cofactor flavin mononucleotide (FMN) and catalyzes the following reaction in the jasmonic acid synthesis pathway: This reaction occurs in peroxisomes in plants. Several isozymes have been discovered, with varying substrate stereospecificity: three in "Lycopersicon esculentum", 13 in "Oryza sativa", and five in "Arabidopsis thaliana".