Soil around the castle was discovered to contain a bright red compound produced by a strain of the bacterium Streptomyces peucetius.
A new strain of Streptomyces peucetius which produced a red pigment was isolated, and an antibiotic was produced from this bacterium that was found to have good activity against murine tumors.
Streptomyces | Streptomyces peucetius | Streptomyces pentaticus | Streptomyces nodosus | Streptomyces hygroscopicus |