Record ID No. |
63 |
Author(s) |
Kjoller R. , 2006 |
Affiliation |
University of Copenhagen, Institute of Biology, Department of Microbiology, Oster Farimagsgade 2D, DK-1353 Copenhagen K, Denmark |
Title |
Disproportionate abundance between ectomycorrhizal root tips and their associated mycelia |
Source. Vol.(no):Page |
Fems microbiology ecology. 58(2-3): 214-224p. |
Categories |
Ectomycorrhiza |
Subjects |
Ecology |
Host |
n.a. |
Organism |
Boletoid species, Russuloid, Cortinarius species, Tomentella species |
Country |
Denmark, Europe |
Abstracts |
Extensive knowledge of various ectomycorrhizal fungal
communities has been obtained over the past 10 years based on
molecular identification of the fungi colonizing fine roots. In
contrast, only limited information exists about the species
composition of ectomycorrhizal hyphae in soil. This study
compared the ectomycorrhizal external mycelial community with
the adjacent root-tip community in a Danish beech forest.
Sand-filled in-growth mesh bags were used to trap external
mycelia by incubating the mesh bags in the soil for 70 days. The
adjacent ectomycorrhizal root-tip communities were recorded at
the times of insertion and retrieval of the mesh bags.
Ectomycorrhizal fungi were identified by sequencing the internal
transcribed spacer region. In total, 20, 31 and 24
ectomycorrhizal species were recorded from the two root-tip
harvests and from the mesh bags, respectively. Boletoid species
were significantly more frequent as mycelia than as root tips,
while russuloid and Cortinarius species appeared to be less dominant as mycelia than as root tips. Tomentella species were
equally frequent as root tips and as mycelia. These
discrepancies between the root-tip and the mycelial view of the
ectomycorrhizal fungal community are discussed within the
framework of ectomycorrrhizal exploration types
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