[Age and changes in the cell wall of Cunninghamella japonica].

Changes in the composition of cell walls were studied in hyphae of Cunninghamella japonica in the course of aging. The content of neutral sugars, uronic acids and lipids remained virtually the same while the content of protein, aminosugars and chitin changed in the course of the cultural growth. The presence of chitosan in the cell wall of Cun. japonica is discussed.