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Carbohydrate and Amino Acid Concentrations During Adventitious Root Primordium Development in Pinus Banksiana Lamb. Cuttings

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Pinus banksiana Lamb. seedling cuttings were propagated with and without naphthaleneacetic acid (NAA) treatment for 24 days. Needles, upper stems, and basal (1 cm) stems were sampled each 3 days and analyzed for total soluble amino acids, sucrose, glucose, total soluble reducing sugars, and starch. Total carbohydrate was calculated from data for starch, reducing sugars, and sucrose. Results indicated that the effects of auxin retarded translocation of amino acids from needles to upper stems, where use of amino acids was enhanced by auxin, during callusing-primordium development. Amino acid levels were always constant in basal stems. Total carbohydrate increased with time in needles, from where sugar was translocated to and accumulated in upper and basal stems. Auxin treatment enhanced the basipetal translocation of sugar and callusing-primordium development. Callusing-primordium development was positively related to total carbohydrate but not total amino acid concentrations in basal stems. Sucrose levels were the first to increase in basal stems, followed by levels of reducing sugars other than glucose. Results suggested that auxin directed basipetal transport of sugar. Forest Sci. 28:813-821.
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Keywords: Vegetative propagation; auxin; jack pine; metabolism; naphthaleneacetic acid

Document Type: Journal Article

Affiliations: Principal Plant Physiologist, USDA Forest Service, North Central Forest Experiment Station, Forestry Sciences Laboratory, P.O. Box 898, Rhinelander, WI 54501

Publication date: 1982-12-01

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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