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Notes: Inhibition of Poria weirii and Fomes annosus by Linoleic Acid

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The potassium salt of linoleic acid, a long-chain fatty acid, inhibited growth of Poria weirii and Fomes annosus in vitro when incorporated into synthetic liquid media at concentrations of 0 1 mg/ml or higher. Increasing concentrations (up to 4.0 g/ml) resulted in significantly increasing inhibition in both fungi. Inhibitory effects were particularly striking for Poria weirii: growth was negligible at concentrations of 1.0 mg/ml or higher. Resistance of Alnus rubra to infection by P. weirii is likely due in part to alder's ability to produce linoleic acid. Forest Sci. 16:329-330.
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Keywords: Alnus rubra; Biological control

Document Type: News

Affiliations: Principal Microbiologist, Forestry Sciences Lab., Pacific Northwest Forest and Range Exp. Sta., Forest Service, USDA, Corvallis, Professor, Dep. of Microbiology, Oregon State Univ.

Publication date: 1970-09-01

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2016 Impact Factor: 1.782 (Rank 17/64 in forestry)

    Average time from submission to first decision: 62.5 days*
    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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