A mutation in Aspergillus nidulans producing hyphal walls which lack chitin.

Amino Sugars/metabolism Aspergillus/growth & development,metabolism Cell Wall/analysis Chitin/metabolism Genes, Recessive Glucosamine/metabolism Hot Temperature Infrared Rays Mutation Osmolar Concentration Phenotype Polysaccharides/metabolism Sodium Chloride Spectrophotometry Sucrose X-Ray Diffraction

Amino Sugars Polysaccharides Chitin Sodium Chloride Sucrose Glucosamine