Amycolatopsis orientalisAmycolatopsis orientalis is a Gram-positive bacterium in the phylum Actinomycetota. It produces several substances with antimicrobial properties, including the antibiotic drug vancomycin.HistoryA. orientalis was originally discovered by Edmund Kornfeld, an organic chemist at Eli [Lilly and Company], in a soil sample gathered by a missionary from forests on the island of Borneo. The antibiotic vancomycin was first isolated from the bacteria in 1953.