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Influence of spatial scale on population structure of Stereum sanguinolentum in Northern Europe

Published online by Cambridge University Press:  01 January 1998

RIMVYDAS VASILIAUSKAS  and
JAN STENLID
RIMVYDAS VASILIAUSKAS
Affiliation:
Department of Plant Protection, Lithuanian University of Agriculture, 4324 Kaunas, Lithuania
JAN STENLID
Affiliation:
Department of Forest Mycology & Pathology, Swedish University of Agricultural Sciences, Box 7026, S–750 07 Uppsala, Sweden
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Abstract

Mycelial interactions on Hagem agar between 156 isolates of Stereum sanguinolentum obtained from wounded Picea abies or from slash in 12 sample plots located in Sweden, Finland and Lithuania revealed 97 vegetative compatibility groups (VCGs). Of the 23 VCGs that consisted of two or more (maximum, 23) isolates, 13 came from different sample plots, and sometimes from two or all three countries, whereas 10 were confined to a single sample plot. Some variation was observed in cultural characteristics among isolates belonging to the same VCG. Within a sample plot compatible isolates were randomly distributed indicating that distances up to 180 m in a forest stand have little influence on spread of S. sanguinolentum VCGs. Proportions of compatible pairings decreased among isolates collected within the bigger spatial scale. Occurrence of compatibility and consequent grouping of the isolates into VCGs was more pronounced in Swedish populations then Finnish and Lithuanian populations.

Type
Research Article
Information
Mycological Research , Volume 102 , Issue 1 , January 1998 , pp. 93 - 98
Copyright
© The British Mycological Society 1998

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