Phomalactone CAS NO.28921-94-0

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Phomalactone, a fungal metabolite produced by the fungus Nigrospora sphaerica, has activity against strains of the plant pathogenic fungi C. sasaki, P. graminicola, M. griesea, P. capsica, and P. infestans (IC50s = 200, 120, 83, 120, and 0.83 mg/L, respectively), but no F. oxysporum, A. alternate, B. cinerea, or C. gloeosporioides (IC50s = >200 mg/L for all). It is phytotoxic to Z. elegans and other plant species by inhibiting seedling growth and causing electrolyte leakage in the photosynthetic tissues of both Z. elegans leaves and cucumber cotyledons.