Not all diatoms are solitary. The photomicrograph above shows a typical colony of pennate diatoms. Colonies may be attached to eachother via connections in their silica cell walls, or by means of a mucilage that the diatoms produce.
Not all diatoms are solitary. The photomicrograph above shows a typical colony of pennate diatoms. Colonies may be attached to eachother via connections in their silica cell walls, or by means of a mucilage that the diatoms produce.