Abstract
VIRIDIN, an antibiotic produced by a pigment-forming strain of the common soil fungus Trichoderma viride, was first described by Brian and McGowan1, and Brian, Curtis, Hemming and McGowan2. Viridin is not anti-bacterial but is highly antifungal. Its activity against certain fungi is remarkably high. Germination of the spores of, for example, Botrytis allii is prevented by a concentration of 0.019 p.p.m. of α-viridin or 0.156 p.p.m. of β-viridin. Among synthetic fungicides, only the organo-mercurials are of the same order of activity.
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Brian, P. W., and McGowan, J. C., Nature, 156, 144 (1945).
Brian, P. W., Curtis, P. J., Hemming, H. G., and McGowan, J. C., Ann. App. Biol., 33, 190 (1946).
Girard, A., and Sandulesco, G., Helv. Chem. Acta, 19, 1905 (1936).
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VISCHER, E., HOWLAND, S. & RAUDNITZ, H. Viridin. Nature 165, 528 (1950). https://doi.org/10.1038/165528a0
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DOI: https://doi.org/10.1038/165528a0
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