Antibacterial activity of a substance produced by the fungus Pycnoporus sanguineus (Fr.) Murr.
A fraction obtained from the culture fluids of Pycnoporus sanguineus fungus was shown to contain a compound with biological activity against strains of Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Salmonella typhi, Staphylococcus aureus and members of the genus Streptococcus. The fraction was clearly more active on Gram-positive cocci than on Gram-negative bacilli.