Gymnomyces xerophilus sp. nov. (sequestrate Russulaceae), an ectomycorrhizal associate of Quercus in California

Matthew E Smith; James M Trappe; David M Rizzo; Steven L Miller

doi:10.1016/j.mycres.2006.03.001

Gymnomyces xerophilus sp. nov. (sequestrate Russulaceae), an ectomycorrhizal associate of Quercus in California

Mycol Res. 2006 May;110(Pt 5):575-82. doi: 10.1016/j.mycres.2006.03.001.

Authors

Matthew E Smith¹, James M Trappe, David M Rizzo, Steven L Miller

Affiliation

¹ Department of Plant Pathology, University of California at Davis, Davis CA 95616, USA. mesmith@ucdavis.edu

PMID: 16769510
DOI: 10.1016/j.mycres.2006.03.001

Abstract

Gymnomyces xerophilus sp. nov., a sequestrate species in the Russulaceae, is characterized and described morphologically as a new species from Quercus-dominated woodlands in California. ITS sequences recovered from healthy, ectomycorrhizal roots of Quercus douglasii and Q. wislizeni matched those of G. xerophilus basidiomata, confirming the ectomycorrhizal status of this fungus. Phylogenetic analysis of the ITS region places G. xerophilus in a clade with both agaricoid (Russula in the section Polychromae) and sequestrate (Gymnomyces, Cystangium) relatives. We include a dichotomous key to the species of Gymnomyces associated with Quercus.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

Basidiomycota / classification*
Basidiomycota / genetics
Phylogeny
Plant Roots / microbiology*
Quercus / microbiology*