Anatomical aspects of field ectomycorrhizas on Polygonum viviparum (Polygonaceae) and Kobresia bellardii (Cyperaceae) |
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| Authors: | H B Massicotte L H Melville R L Peterson D L Luoma |
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| Institution: | (1) College of Science and Management, Faculty of Natural Resources and Environmental Studies, University of Northern British Columbia, Prince George, British Columbia, Canada V2N 4Z9 Fax: +1-250-960-5538; e-mail: hugues@unbc.ca, CA;(2) Department of Botany, University of Guelph, Guelph, Ontario, Canada, N1G 2W1, CA;(3) Department of Forest Science, Oregon State University, Corvallis, OR 97331-5705, USA, US |
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| Abstract: | Root systems of the herbaceous species Polygonum viviparum and Kobresia bellardii were excavated from an alpine site in the Rocky Mountains, Colorado, and processed for microscopic examination. Several ectomycorrhizal
morphotypes were present on root systems of both species;K. bellardii often had complex clusters of mycorrhizal roots present. A mantle and Hartig net were present on all mycorrhizal root tips
processed. The Hartig net was confined to the epidermis, and the parenchyma cells of this layer were radially elongated, vacuolated
and contained densely staining inclusions. Intracellular hyphae and structures typical for vesicular-arbuscular mycorrhizas
were never observed. Both herbaceous species, therefore, had ectomycorrhizal associations comparable to those described for
woody angiosperm species.
Accepted: 14 February 1998 |
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| Keywords: | Kobresia Polygonum Ectomycorrhiza Alpine Anatomy |
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