pseudomonas lutea pseudomonas lutea pseudomonas lutea is a gram-negative, strictly aerobic, non-spore-forming, motile, rod-shaped bacterium originally isolated from the rhizosphere of grasses in spain. the type strain is lmg 21974. pseudomonas lutea scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: pseudomonadales family: pseudomonadaceae genus: pseudomonas species: p. lutea binomial name pseudomonas luteapeix, et al. 2004