bacillus pseudalcalophilus bacillus pseudalcalophilus bacillus pseudalcalophilus is a facultative anaerobe bacterium. it is a gram positive, alkaliphilic and alkalitolerant, aerobic endospore-forming bacteria. bacillus pseudalcalophilus scientific classification domain: bacteria phylum: bacillota class: bacilli order: bacillales family: bacillaceae genus: bacillus species: b. pseudalcalophilus binomial name bacillus pseudalcalophilusnielsen et al. 1995