Record ID No. |
900 |
Author(s) |
Muhlmann,O., Gobl,F , 2006 |
Affiliation |
Institute of Microbiology, University of Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria. |
Title |
Mycorrhiza of the host-specific Lactarius deterrimus on the roots of Picea abies and Arctostaphylos uva-ursi |
Source. Vol.(no):Page |
Mycorrhiza. 16(4): 245-250p. |
Categories |
Ectomycorrhiza |
Subjects |
Soil plant relations |
Sub-subjects |
Dependency |
Host |
Picea abies, Arctostaphylos uva-ursi |
Organism |
Lactarius deterrimus |
Country |
Austria, Europe |
Abstracts |
The ectomycorrhizal basidiomycete species Lactarius deterrimus Groger is considered to be a strictly host-specific mycobiont of Picea abies (L.) Karst. However, we identified arbutoid mycorrhiza formed by this fungus on the roots of Arctostaphylos uva-ursi (L.) Spreng. in a mixed stand at the alpine timberline; typical ectomycorrhiza of P. abies were found in close relation. A. uva-ursi is known as an extremely unspecific phytobiont. The mycorrhizas of both associations are described and compared morphologically. The mycorrhiza formed by L. deterrimus on both A. uva-ursi and P. abies show typical ectomycorrhizal features such as a hyphal mantle and a Hartig net. The main difference between the mycorrhizal symbioses with the different phytobionts is the occurrence of intracellular hyphae in the epidermal cells of A. uva-ursi. This emphasizes the importance of the plant partner for mycorrhizal anatomy. This is the first report of a previously considered host-specific ectomycorrhizal fungus in association with A. uva-ursi under natural conditions. The advantages of this loose specificity between the fungus and plant species is discussed. |