Taxonomy of Armillaria in the Patagonian forests of Argentina

The taxonomy of Armillaria in southern South America has received little attention since the work of Singer and others. In this study we examine the morphological traits and cultural features for taxa representing the lineages revealed based on molecular phylogeny, and we link them to previously described taxa based on morphology. Lineages I–IV were identified as Armillaria novaezelandiae, A. montagnei, A. umbrinobrunnea comb. nov. and A. sparrei respectively. They could be differentiated morphologically based on dimension, features of the epicutis, annulus, stipe, hymenophoral trama and flavor and characteristics in culture. Furthermore there was no evidence of host preference for the species recognized. This is the first study integrating the phylogeny and morphology of Armillaria species from Patagonia, and it provides a foundation for future research on these fungi in South America.

[1]  M. Wingfield,et al.  Molecular phylogeny of Armillaria from the Patagonian Andes , 2009, Mycological Progress.

[2]  M. Capelari,et al.  Armillaria paulensis: a new South American species. , 2008, Mycological research.

[3]  M. Wingfield,et al.  Armillaria species on tea in Kenya identified using isozyme and DNA sequence comparisons , 2006 .

[4]  J. Elkinton,et al.  Pathogenicity and virulence. , 2004, Journal of invertebrate pathology.

[5]  M. Wingfield,et al.  Molecular identification and phylogeny of Armillaria isolates from South America and Indo-Malaysia , 2003, Mycologia.

[6]  M. Wingfield,et al.  Phylogenetic relationships of Australian and New Zealand Armillaria species , 2001 .

[7]  R. Fox.  Armillaria root rot : biology and control of honey fungus , 2000 .

[8]  E. Nagasawa,et al.  Biological Species of Armillaria in Japan. , 1998, Plant disease.

[9]  B. Wingfield,et al.  A PCR-based identification method for species of Armillaria , 1995 .

[10]  H. H. Burdsall,et al.  A nomenclatural study of armillaria and armillariella species : Basidiomycotina, Tricholomataceae , 1995 .

[11]  R. Singer.  New taxa and new combinations of Agaricales: (Diagnoses fungorum novorum Agaricalium IV) , 1989 .

[12]  I. Hood,et al.  OCCURRENCE OF ARMILLARIA RHIZOMORPH POPULATIONS IN THE SOIL BENEATH INDIGENOUS FORESTS IN THE BAY OF PLENTY, NEW ZEALAND , 1987 .

[13]  R. Singer,et al.  Index Agaricalium Chilensium , 1986 .

[14]  R. Watling,et al.  Armillaria species from south-eastern Australia , 1983 .

[15]  R. Watling,et al.  Spread and effects of Armillaria luteobubalina sp. nov. in an Australian Eucalyptus regnans plantation. , 1978 .

[16]  Greta B. Stevenson.  The Agaricales of New Zealand: III , 1962 .

[17]  F. A. Stafleu,et al.  Index herbariorum : the herbaria of the world , 1956 .

[18]  R. Singer.  Four years of mycological work in southern South America. , 1953 .