Germicidin B is a pyranone isolated from Streptomyces sp. Germicidin B is a potent autoregulator of the sporulation of the producing strain and spores of closely related species. Inhibition is detected at 0.1 ng/ml and is orders of magnitude more potent than a diverse range of antibiotics.
- Germicidin, an autoregulative germination inhibitor of Streptomyces viridochromogenes NRRL B-1551. Petersen, F. et al., J. Antibiot. 1993, 46, 1126.