@misc{oai:repo.qst.go.jp:00067312,
 author = {Ban-nai, Tadaaki and Yoshida, Satoshi and Muramatsu, Yasuyuki and 坂内 忠明 and 吉田 聡 and 村松 康行},
 month = {Dec},
 note = {After the Chernobyl accident, high concentration of radiocesium in mushroom was reported. It is important for radiation protection and radioecology to understand the behavior of radionuclides in mushrooms. Our laboratory experiments, using Cs-137 as a radiotracer, showed that fruit bodies of some basidiomycetes accumulate Cs from medium. However, there is almost no information on the Cs accumulation in hypha. Behavior of radiocesium between hypha and fruit bodies is also unclear. In this study, transfer of Cs-137 from medium to hypha of basidiomycetes was estimated by using cultivation experiments in flasks. Zn-65 is also used for comparison. Four species, Hebeloma vinosophyllum, Agrocybe cylindracea, Lentinula edodes and Pleurotus ostreatus were used. Accumulations of Cs-137 and Zn-65 in hypha were observed in some species. The concentration ratio of Cs-137 between hypha (Bq/g, wet wt.) and medium (Bq/g, wet wt.) ranged from 0.40 to 3.9. The highest value of 3.9 was observed for P. ostreatus. The ratios for hypha were lower than those observed for fruit bodies in previous studies. These findings suggested that Cs taken up by hypha was moved and accumulated into fruit body during fruit body formation., The 8th International Symposium of the Mycological Society of Japan (Part II) -New frontiers in health science assosiated with the fungi-},
 title = {Uptake of radiocesium by hypha of basidiomycetes -radiotracer experiments-},
 year = {2002}
}