Tags: Bacteria.
Planctobacteria is a taxon created by Cavalier-Smith specifically a division (phylum). However it is not followed by the larger scientific community.Cavalier-Smith postulated that the Planctobacteria probably lost or reduced their peptidoglycan cell wall twice.In the Cavalier-Smith bacterial megaclassification it is within the bacterial Gracilicutes infrakingdom and comprises three classes Chlamydiae Lentisphaerae Planctomycetes Verrucomicrobia.