alkalitalea alkalitalea alkalitalea is a gram-positive and obligately anaerobic genus of bacteria from the family of marinilabiliaceae with one known species (alkalitalea saponilacus).alkalitalea saponilacus has been isolated from the soap lake in the united states. alkalitalea scientific classification domain: bacteria phylum: bacteroidota class: bacteroidia order: bacteroidales family: marinilabiliaceae genus: alkalitaleazhao and chen 2012 type species alkalitalea saponilacus species a. saponilacus