Braunschweig, Germany
Braunschweig, Germany

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Benjamin Stielow J.,Cultures GmbH DSMZ | Vaas L.A.,Cultures GmbH DSMZ | Goker M.,Cultures GmbH DSMZ | Hoffmann P.,Cultures GmbH DSMZ | Klenk H.-P.,Cultures GmbH DSMZ
Mycologia | Year: 2012

We assessed viability of 18 strains of filamentous ectomycorrhizal and saprotrophic basidiomycetes and ascomycetes after cryopreservation with a novel technique based on charcoal filter paper strips (CFS). The results indicate that axenic fungal cultures grown on CFS recovered from freezing within a few days, even though none survived cryopreservation by the conventional straw method. Fungal growth on CFS was more vigorous, with morphological differentiations such as rhizomorphs and an increased amount of aerial mycelia compared to the unamended culture media. Accordingly CFS allows the cryopreservation of a wide range of rare and important ectomycorrhizal and saprotrophic fungi, which hitherto were difficult to revive from liquid nitrogen storage with the conventional and widely applied straw technique. © 2012 by The Mycological Society of America.

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