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Translocation and Persistence of Cycloheximide and Phytoactin in Eastern White Pine

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The antibiotics, cycloheximide and Phytoactin, moved systemically in Pinus strobus L. They were absorbed by seedling roots from aqueous dips; by foliage, when sprayed with water solutions; and by trunks, when basally sprayed with fuel oil. After basal stem applications, the antibiotics were translocated both upward and downward in the phloem and xylem. In the tissues of forest pines, cycloheximide persisted longer and in larger quantities than Phytoactin. Spring treatment resulted in more absorption and translocation than fall treatment. Detectable amounts of the antibiotics disappeared rapidly from the pine tissues during the first 2 months after application, then more slowly for the next 2 years. Cycloheximide was still detected in the treated outer and inner bark 3 years after treatment.
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Document Type: Journal Article

Affiliations: Research Technician, The Institute of Forest Genetics, North Central Forest Expt. Sta., Forest Service, U.S. Dept. of Agriculture, Rhinelander, Wisconsin

Publication date: 1967-03-01

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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