👉 Benthobacteria, a group of bacteria that inhabit the bottom layers of aquatic environments, primarily found in saltwater and freshwater bodies. They are characterized by their unique cellular structure, which is composed of a cell wall made up of cellulose, with a complex network of pores for gas exchange and nutrient absorption. Benthobacteria play crucial roles in water purification, as they can remove harmful bacteria and nutrients from the water, making it suitable for drinking and irrigation purposes.