Thirty fungal species from various taxonomic and ecologic groups were cultivated on two glucose-peptone media enriched with cystine (3 mmol/l). Nineteen species showed certain ability to utilize cystine not only as a source of sulfur but that of carbon and nitrogen as well; six species utilized cystine completely. Excess sulfur was excreted after oxidation in the form of inorganic sulfate and/or sulfite back into the medium. Cystine metabolization was on average more rapid and complete on the medium with higher peptone content and better growth. When compared with keratinolytic fungi studied previously, the present set of fungi showed a lower tendency to cystine utilization and comprised species not utilizing this amino acid at all.

• MeSH
• cystin metabolismus   MeSH
• dusík metabolismus   MeSH
• glukosa metabolismus   MeSH
• houby klasifikace   metabolismus   MeSH
• kultivační média MeSH
• peptony metabolismus   MeSH
• síra metabolismus   MeSH
• uhlík metabolismus   MeSH
• Publikační typ
• časopisecké články MeSH
• přehledy MeSH
• Názvy látek
• cystin MeSH
• dusík MeSH
• glukosa MeSH
• kultivační média MeSH
• peptony MeSH
• síra MeSH
• uhlík MeSH