B. G. Pummer, L. Atanasova, H. Bauer, J. Bernardi, I. Druzhinina, H. Grothe:
"Spores of most common airborne fungi reveal no ice nucleation activity";
Biogeosciences Discussion, 10 (2013), 6; S. 10125 - 10141.

Kurzfassung englisch:
Fungal spores are ubiquitous biological aerosols, which are considered to show ice nucleation (IN) activity. In this study the respective IN activity was tested in oil emulsion in the immersion freezing mode. The focus was laid on species of economical, ecological or sanitary significance. For the first time, not only common coulds, but also edible mushrooms (Basidiomycota, Agaricomycetes) were investigated, as they contribute massively to the total amount of fungal spores in the atmosphere. Only Fusarium avenaceum showed freezing events at low subzero-temperatures, while the other investigated fungal spores showed no significant IN activity. Furthermore, we selected a set of fungal strains from different sites and exposed them to occasional freezing stress during cultivation. Although the total protein expression was altered by this treatment, it had no significant impact on the IN activity.

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