A range of isolates of Serpula lacrymans show identical molecular prof
iles by Western Blotting or lectin staining. One isolate, BF-050, show
ed differences in silver stained protein profiles from old mycelium bu
t profiles from young mycelium of BF-050 were identical to the type st
rain of S. lacrymans FPRL 12C. Both S. lacrymans and the related organ
ism, Serpula himantoides, shared different profiles for old and young
mycelium confirming that growth phase antigens/proteins are not limite
d to S. lacrymans. Lectin staining profiles could distinguish between
S. lacrymans FPRL 12C, BF-015B, S. himantoides and all other basidiomy
cete organisms tested. Differences between strains of S. lacrymans inc
luding BF-050, were not apparent.