Studies of the antifungal compounds produced by Erwinia herbicola.
The organic phase of a wide spectrum, antimycotic and diffusable toxin from Erwinia herbicola showed a highly significant inhibitory activity against Pyricularia oryzae spores in spore well bioassay. Germ tube lengths were inhibited more in wells containing 5 microliters equivalent of bacterial toxin than 1 microliter. No significant difference between the germ tube in an equal mixture of Dimethyl sulphoxide: ethanol and controls. Thin layer chromatography using the chloroform extraction of the organic phase showed a significant antagonism on Cladosporium cucumerinum. The retardation factor values for inhibitory zones in solvent 1 were 0.07 for lower spot and 0.26 for upper spot.
Department of Human Environmental Science, King's College London.
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Adetuyi
D000935:Antifungal Agents / Q000494:pharmacology*; D001427:Bacterial Toxins / Q000494:pharmacology*; D002963:Cladosporium / Q000187:drug effects*; D004885:Erwinia / Q000378:metabolism*; D003904:Mitosporic Fungi / Q000187:drug effects*; D010935:Plant Diseases; D013172:Spores, Fungal / Q000187:drug effects
D000935:Antifungal Agents; D001427:Bacterial Toxins