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Multiple‐host fungi are the most frequent and abundant ectomycorrhizal types in a mixed stand of Douglas fir ( Pseudotsuga menziesii ) and bishop pine ( Pinus muricata )
Author(s) -
HORTON THOMAS R.,
BRUNS THOMAS D.
Publication year - 1998
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1046/j.1469-8137.1998.00185.x
Subject(s) - douglas fir , biology , pinus <genus> , botany , host (biology) , ectomycorrhiza , biomass (ecology) , mycorrhiza , ecology , symbiosis , genetics , bacteria
The ectomycorrhizal fungal associations of Douglas fir ( Pseudotsuga menziesii D. Don) and bishop pine ( Pinus muricata D. Don) were investigated in a mixed forest stand. We identified fungi directly from field‐collected ectomycorrhizal (ECM) root tips using PCR‐based methods. Sixteen species of fungi were found, of which twelve associated with both hosts. Rhizopogon parksii Smith was specific to Douglas fir. Three other species colonized only one of the hosts, but were too infrequent to draw conclusions about specificity. Seventy‐four percent of the biomass of ECM root tips sampled in the stand were colonized by members of the Thelephoraceae and Russulaceae. All 12 species of fungi that associated with both tree species did so within a 10×40 cm soil volume, suggesting that individual fungal genotypes linked the putatively competing tree hosts.