Part of the resting spores of E. virulenta, E. thaxteriana, and E. destruens germinate still after 72 hours of treatment with concentrated ajatin. A culture 14 days old may furnish a viable inoculum after being submerged in concentrated ajatin for 96 hours. The resting spores of all three species are at optimum state in a 14 days old culture, or during the first two months, stored at dry state in the refrigerator (7–15 °C).
Fragner P., Hejzlar J. (1973): „Graphiosis“- eine neue Erkrankung des Menschen? – Česká Mykologie 27(2): 98–106.
