Does a species produce a capsule under all conditions of cultivation explain

Does species produce a capsule under all conditions of cultivation.

NO species does not produce a capsule under all condition of cultivation. some do it differently.

Explanation

For instance the bacteria zooglea secret fibres of cellulose that enmest the bacteria into floc that floats on the surface of liquid which keeps the bacteria exposed to air.

Air is a requirement for the metabolism of genus of bacteria.