delftia tsuruhatensis delftia tsuruhatensis delftia tsuruhatensis is a gram-negative, rod-shaped, catalase- and oxidase-positive, motile bacterium from the comamonadaceae family, which was isolated from a domestic wastewater treatment plant in japan. d. tsuruhatensis is an opportunistic and emergent pathogen. all documented infections are healthcare-associated. delftia tsuruhatensis scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: comamonadaceae genus: delftia species: d. tsuruhatensis binomial name delftia tsuruhatensisshigematsu et al. 2003, sp. nov. type strain atcc baa-554, dsm 17581, ifo 16741, nbrc 16741, t7 biology and biochemistry cells are slightly curved, short rod-shaped cells that occur singly or in pairs. cells are 0.7-1.2 μm wide and 2.4-4.0 μm long. delftia tsuruhatensis can degrade phenolic compounds and aniline, which are often pollutants of soil and water. biofilm interactions delftia tsuruhatensis can inhibit quorum sensing and biofilm formation, which could inform new therapeutic drugs against antibiotic-resistant bacteria. d. tsuruhatensis demonstrated significant quorum sensing inhibition and suppression of biofilm formation against pseudomonas aeruginosa and other pathogens. these activities also cause p. aeruginosa to be 2-3 times more susceptible to antibiotics.