planctopirus hydrillae planctopirus hydrillae planctopirus hydrillae is a gram-negative bacterium from the genus of planctopirus which has been isolated from the plant hydrilla verticillata from hyderabad in india. planctopirus hydrillae scientific classification domain: bacteria phylum: planctomycetota class: planctomycetia order: planctomycetales family: planctomycetaceae genus: planctopirus species: p. hydrillae binomial name planctopirus hydrillaeyadav et al. 2018 type strain kctc 42880, lmg 29153, jc280