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Notes: An Antibiotic Detected in Conifer Foliage and its Relation to Cenococcum graniforme Mycorrhizae

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Cenococcum graniforme formed abundant mycorrhizae with Pinus strobus, P. resinosa, and Picea abies growing in pure plantations on two soil types in central Pennsylvania. Roots of these species growing in Morrison sandy loam had more C. graniforme mycorrhizae than those in Calvin-Edom silty clay loam. Picea abies showed the greatest number of mycorrhizae per unit length of root and Pinus strobus the fewest. An antibiotic similar to that produced by C. graniforme in vitro was detected in needles of each species. Bioassay of the Cenococcum antibiotic with Bacillus cereus indicated a significantly greater antibiotic activity in P. strobus than in P. resinosa. Picea abies extracts contained the antibiotic but apparently not in sufficient quantity to inhibit B. cereus.
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Keywords: Picea abies; Pinus resinusa; Pinus strobus

Document Type: News

Affiliations: Professor of Silviculture, School of Natural Resources, Pa. State Univ.

Publication date: 1969-09-01

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    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.
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