malikia spinosa malikia spinosa malikia spinosa is a gram-negative soil bacterium. malikia spinosa scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: comamonadaceae genus: malikia binomial name malikia spinosa(leifson 1962) spring et al. 2005 synonyms pseudomonas spinosa leifson 1962