weissella koreensis weissella koreensis weissella koreensis is a species of gram-positive bacteria in the family leuconostocaceae. the bacteria has irregular cells, is tolerant of acid, and does not develop spores. it was described by lee et al. in 2002. weissella koreensis scientific classification domain: bacteria phylum: bacillota class: bacilli order: lactobacillales family: lactobacillaceae genus: weissella species: w. koreensis binomial name weissella koreensislee et al., 2002