alkalibacterium iburiense alkalibacterium iburiense alkalibacterium iburiense is a gram-positive, obligately alkaliphilic, indigo-reducing, facultatively anaerobic and straight rod-shaped bacterium from the genus alkalibacterium. alkalibacterium iburiense scientific classification domain: bacteria phylum: bacillota class: bacilli order: lactobacillales family: carnobacteriaceae genus: alkalibacterium species: a. iburiense binomial name alkalibacterium iburiensenakajima et al. 2005 type strain m3 synonyms alkalibacterium iburiensis