Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: "Strain specific differences in ribosomal DNA from the ectomycorrhizal fungi Laccaria bicolor (Maire) Orton and Laccaria laccata (Scop ex Fr) Br. | 297 Ann Sci For 1991 48 297-305 Elsevier INRA Original article Strain specific differences in ribosomal DNA from the ectomycorrhizal fungi Laccaria bicolor Maire Orton and Laccaria laccata Scop ex Fr Br F Martin 1 M Zaiou 1 F Le Tacon 1 p Rygiewicz 2 INRA Laboratoire de Microbiologie Forestibres Champenoux 54280 Seichamps France 2 US Environmental Protection Agency Environmental Research Laboratory 200 sw 35 th st Corvallis OR 97333 USA Received 6 August 1990 accepted 24 January 1991 Summary The restriction fragment length polymorphism patterns of the ribosomal RNA genes of 14 isolates belonging to various ectomycorrhizal fungus species including the related basidiomyce-tous ectomycorrhizal fungi Laccaria laccata Scop ex Fr Br and Laccaria bicolor Maire Orton have been determined. The isolates were obtained from various geographical sources in France the United Kingdom and North America. Total DNA of vegetative mycelium was cleaved with a series of restriction enzymes electrophoretically separated and probed with radiolabelled rDNA gene from Copri-nus cinereus Schaeff Fr SF Gray. Results indicate that isolates belonging to different species had different restriction enzyme sites in the rDNA. Although distinct patterns were observed within species a core of common bands could be discerned within each species. Since various patterns were observed within L bicolor and L laccata rRNA gene restriction patterns may have epidemiological as well as taxonomic interest. Laccarla bicolor Laccaria laccata restriction fragment length polymorphism I RFLP I ribosomal DNA taxonomy epidemiology Résumé Étude du polymorphisme de I ADN ribosomal Chez dittérentes souches de champignons ectomycorhlziens Laccaria bicolor et Laccaria laccata. Afin de caractéríser la diversite génétique au sein des champignons ectomycorhiziens appartenant aux espbces Laccaria bicolor et L laccata une étude du polymorphisme de I ADN ribosomal ADNr de 14 souches appartenant à plusieurs espbces et de .
