From a specimen of Acer saccharinus collected in a Prague park, 38 females of Tremex fuscicornis (Hymenoptera, Siricidae) were reared and sixteen isolates of a symbiotic basidiomycete were isolated from their mycangia. All isolates shared morphology and RAPD patterns. The fungus was identified using rDNA (regions ITS1, 5.8S, ITS2, and D1D2 part of the 28S rDNA) as Cerrena unicolor (Basidiomycota: Polyporales). The identification is discussed with respect to related horntail taxa and former identification attempts.
Pažoutová S., Šrůtka P. (2007): Symbiotic relationship between Cerrena unicolor and the horntail Tremex fuscicornis recorded in the Czech Republic. – Czech Mycology 59(1): 83–90.