Mycorrhiza

, Volume 16, Issue 4, pp 245–250

Mycorrhiza of the host-specific Lactarius deterrimus on the roots of Picea abies and Arctostaphylos uva-ursi

Original Paper

DOI: 10.1007/s00572-006-0038-9

Cite this article as:
Mühlmann, O. & Göbl, F. Mycorrhiza (2006) 16: 245. doi:10.1007/s00572-006-0038-9

Abstract

The ectomycorrhizal basidiomycete species Lactarius deterrimus Gröger 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 mycorrhizae 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.

Keywords

Arctostaphylos uva-ursi Picea abies Lactarius deterrimus Arbutoid mycorrhiza Ectomycorrhiza 

Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  1. 1.Institute of MicrobiologyUniversity of InnsbruckInnsbruckAustria
  2. 2.Schneeburggasse 43aInnsbruckAustria

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