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Notes: Anthocyanins in Autumn Leaves of Quaking Aspen in Colorado

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Two to three natural clones of quaking aspen (Populus tremuloides Michx.), selected for their yellow-, orange-, and red-colored autumn foliage, were observed during late summer and early autumn for 5 years. Pigments were extracted from both colored and green leaves and the extracts analyzed by paper chromatography. The timing and change of color varied with elevation, between clones at similar elevations, and between years, some clones reaching different peak colors in different years. An apparent, unidentified carotenoid pigment was found to be synthesized in all colored leaves during autumn. Two anthocyanin pigments, previously unreported for quaking aspen, cyanidin-3-glucoside and very probably cyanidin-3-galactoside, were found in both orange- and red-colored leaves but were lacking in yellow-colored leaves. For. Sci. 35(1):229-236.

Keywords: Anthocyanin; carotenoid; chromatography; clone

Document Type: Miscellaneous

Affiliations: Professor of Wood Chemistry, Department of Forest and Wood Sciences, Colorado State University, Fort Collins, Colorado 80523

Publication date: 1989-03-01

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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.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 in forestry

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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