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Pure Culture Synthesis of Ectomycorrhizae on Pinus ponderosa with Species of Amanita, Suillus, and Lactarius

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Pinus ponderosa seedlings were inoculated with pure cultures of 15 different fungal species, representing 13 Hymenomycetes and 2 Gasteromycetes. Mycorrhizae were formed during a 5-month period with Suillus granulatus, Amanita muscaria, A. pantherina, and Lactarius deliciosus. Morphological-anatomical characteristics of these mycorrhizae are described. Dichotomously branched short roots predominated on seedlings inoculated with two fungi that did not form mycorrhizae. The number of confirmed P. ponderosa mycorrhizal symbionts has been increased from six to ten from results of this investigation. Forest Sci. 19:242-250.

Keywords: Agaricus; Boletus; Calvatia; Clitocybe; Collybia; Cystoderma; Hygrophorus; Leucopaxillus; Lycoperdon; Ponderosa pine

Document Type: Journal Article

Affiliations: Plant Pathologist, Rocky Mountain Forest and Range Experiment Station, Forest Service, USDA, Fort Collins, in cooperation with Colorado State University

Publication date: December 1, 1973

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