alkalibacter alkalibacter alkalibacter is a gram-positive, rod-shaped, strictly anaerobic and non-motile bacterial genus from the family of carnobacteriaceae, with one known species (alkalibacter saccharofermentans). alkalibacter scientific classification domain: bacteria phylum: bacillota class: bacilli order: lactobacillales family: carnobacteriaceae genus: alkalibactergarnova et al. 2005 type species alkalibacter saccharofermentans species a. saccharofermentans