Rhizomorph Production by Armillaria mellea Induced by Ethanol and Related Compounds

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Science  22 Nov 1963:
Vol. 142, Issue 3595, pp. 1065-1066
DOI: 10.1126/science.142.3595.1065


Armillaria mellea produced abundant rhizomorphs when grown on a chemically defined medium containing ethanol at concentrations as low as 50 parts per million. In the absence of ethanol no rhizomorphs were formed. Rhizomorph production was also stimulated by I-propanol, isopropanol, and 1-butanol as well as by acetaldehyde (to a lesser extent). Potassium acetate had very slight stimulating effect, and methanol was completely ineffective.