Planctomycetes are a group (phylum) of gram-negative bacteria that can be found in marine habitats including oceans, freshwater lakes, wastewater but also terrestrial habitats like soils. Approximately 11% of marine microbial communities is occupied by this phylum. They grow very slowly compared to other bacteria phylum. The majority of Planctomycetota species reproduce by binary fission which is when the bacterium divides into two (or more) and each part regenerates to become a new cell which resembles the original cell; however, they can also reproduce by budding which is when an organism reproduces by forming a ‘bud’, this bud develops into a full organism.