•Planctomyceteslack peptidoglycan in their cell walls resulting in the ability to resist antibiotics such as penicillin and cephalosporin. •Verrucomicrobiahas symbiotic association with protists.
•Planctomyceteslack peptidoglycan in their cell walls resulting in the ability to resist antibiotics such as penicillin and cephalosporin.•Verrucomicrobiahas symbiotic association with protists.