genus that is motile
Salmonella. a genus of gram-negative, facultatively anaerobic, usually motile, rod-shaped bacteria; this genus is very complex and has been described by several different systems of nomenclature.ny of various gram-negative, rod-shaped bacteria of the genus Salmonella, many of which are pathogenic, causing food poisoning, typhoid, and paratyphoid fever in humans and other infectious diseases in domestic animals.