pseudoalteromonas ulvae pseudoalteromonas ulvae pseudoalteromonas ulvae is a marine bacterium isolated from the alga ulva lactuca at the intertidal zone near sydney. pseudoalteromonas ulvae scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: alteromonadales family: pseudoalteromonadaceae genus: pseudoalteromonas binomial name pseudoalteromonas ulvaeegan et al., 2001