%0 Article
%T Labelling of Fomes annosus basidiospores with radioactive isotopes 3H, 33P and 125I
%A Kallio, Tauno
%A Selander, Jukka
%A Uusi-Rauva, Antti
%D 1974
%J Silva Fennica
%V 8
%N 1
%R doi:10.14214/sf.a14737
%U https://silvafennica.fi/article/4893
%X <p>The purpose of the study was to find out whether <em>Fomes annosus</em> (now <em>Heterobasidion annosum</em>) growing in a Norway spruce (<em>Picea abies</em> (L.) H. Karst.) stump can, with its mycelium, take up the radioactive isotopes <sup>3</sup>H, <sup>33</sup>P and <sup>125</sup>I in the heading, and whether it transfers them via the sporophores <em>in situ</em> to its basidiospores. Wood material in close proximity to active sporophores was injected with radioactive isotopes. All isotopes could be verified from the basidiospores. The production of viable basidiospores by sporophore was reduced by the isotope injections. This latter result may be of importance e.g. in meteorology for observation of the movements of air masses.</p>
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