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Comparative anatomy of ectomycorrhizas synthesized on Douglas fir by Rhizopogon spp. and the hypogeous relative Truncocolumella citrina

Published online by Cambridge University Press:  01 August 2000

HUGUES B. MASSICOTTE ,
LEWIS H. MELVILLE ,
R. LARRY PETERSON  and
RANDY MOLINA
HUGUES B. MASSICOTTE
Affiliation:
University of Northern British Columbia, College of Science and Management, Faculty of Natural Resources and Environmental Studies, 3333 University Way, Prince George, BC, Canada V2N 4Z9
LEWIS H. MELVILLE
Affiliation:
Department of Botany, University of Guelph, Guelph, Ontario, Canada N1G 2W1
R. LARRY PETERSON
Affiliation:
Department of Botany, University of Guelph, Guelph, Ontario, Canada N1G 2W1
RANDY MOLINA
Affiliation:
USDA Forest Service, Pacific Northwest Research Station, Forestry Sciences Laboratory, 3200 Jefferson Way, Corvallis, Oregon 97331, USA
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Abstract

The morphology and anatomy of ectomycorrhizas of Rhizopogon parksii, Rhizopogon vinicolor and Rhizopogon subcaerulescens, and a hypogeous relative, Truncocolumella citrina, synthesized on Douglas fir in glasshouse conditions using spore slurries as inoculum, are described and compared. Mycorrhizas formed with R. parksii and R. vinicolor did not exhibit their characteristic subtuberculate morphology in these tests, but rather had a pinnate form. All species had diagnostic features of ectomycorrhizas: a well-developed Hartig net and a fungal mantle. In addition, several species exhibited crystal inclusions in the outer mantle, usually at the interface between the mantle and soil. Truncocolumella citrina had crystal-like inclusions within the mantle but external to fungal hyphae, a feature rarely described in ectomycorrhizas.

Keywords

RhizopogonTruncocolumellaPseudotsuga menziesiianatomyscanning electron microscopy
Type
Research article
Information
The New Phytologist , Volume 147 , Issue 2 , August 2000 , pp. 389 - 400
Copyright
© Trustees of the New Phytologist 2000

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