Identify the incorrect statement w.r.t Cyanobacteria.

The cyanobacteria are unicellular, colonial or filamentous, freshwater/marine or terrestrial algae.They can cause algal bloom in water bodies.Filamentous form of cyanobacteria consists of many cells in a row called trichome surrounded by mucilaginous sheath.The cytoplasm of cyanobacteria can be divided into the central centroplasm and the peripheral chromoplasm. The centroplasm contains the genetc material and the chromoplasm contains the pigments.