pseudomonas delhiensis pseudomonas delhiensis pseudomonas delhiensis is a gram-negative bacterium isolated from the dumping site of fly ash of a power plant in delhi, india. the type strain is mtcc 7601. pseudomonas delhiensis scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: pseudomonadales family: pseudomonadaceae genus: pseudomonas species: p. delhiensis binomial name pseudomonas delhiensisprakash, et al. 2007