halopseudomonas pachastrellae halopseudomonas pachastrellae halopseudomonas pachastrellae is a gram-negative bacterium found in deep-sea sponges. the type strain is jcm 12285. halopseudomonas pachastrellae scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: pseudomonadales family: pseudomonadaceae genus: halopseudomonas species: h. pachastrellae binomial name halopseudomonas pachastrellae(romanenko et al. 2005) rudra and gupta 2021 synonyms neopseudomonas pachastrellae (romanenko et al. 2005) saati-santamaría et al. 2021 pseudomonas pachastrellae romanenko et al. 2005