Journal ArticleDOI
Studies on uptake of cesium by mycelium of the mushroom ( Pleurotus ostreatus ) by 133 Cs-NMR
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In this paper, the concentration and existing state of Cs in the cultured mycelium of the edible mushroom (Pleurotus ostreatus (Fr.) Kummer Y-1) using NMR.Abstract:
Sufficient information on the mechanisms of radiocesium translation from substrate to mushroom and long-term radiocesium accumulation is still not available, though high concentrations of radiocesium were reported in the fruiting bodies of various species of mushrooms especially after the Chernobyl accident. We studied the concentration and existing state of Cs in the cultured mycelium of the edible mushroom (Pleurotus ostreatus (Fr.) Kummer Y-1) using NMR. The133Cs NMR resulting spectra exhibited two resonance signals arising from the mycelium whereas one resonance signal from the external medium and CsCl standard solution. The chemical form of the signal in the downfield found in the only mycelium might be concerned with Cs accumulation in the mycelium.read more
Citations
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Journal ArticleDOI
Uptake of Radionuclides by Some Fungi
TL;DR: Mycobiota including Alternaria alternata, Fusarium verticillioides and Aspergillus pulvérulents were tested for their ability to uptake radiocobalt and radiocesium from radionuclide containing medium and A. alternata was the most efficient fungal species for uptake of radioisotopes.
Book ChapterDOI
Mushrooms: Radioactive Contamination of Widespread Mushrooms in Japan
TL;DR: In this article, the radioactivity in wild mushrooms collected from low-level contamination forest areas throughout Japan was measured approximately 6 months after the Fukushima nuclear accident and found that residual 137C radioactivity due to nuclear weapons tests, mainly in 1950s, still remained in soil and was accumulated by mushrooms.
Journal ArticleDOI
Enrichment and isolation of Flavobacterium strains with tolerance to high concentrations of cesium ion
Souichiro Kato,Eri Goya,Michiko Tanaka,Wataru Kitagawa,Wataru Kitagawa,Yoshitomo Kikuchi,Yoshitomo Kikuchi,Kozo Asano,Yoichi Kamagata,Yoichi Kamagata +9 more
TL;DR: Growth experiments clearly demonstrated that the isolate has significantly higher tolerance to Cs+ compared to its close relatives, suggesting the Cs-tolerance is a specific trait of this strain, but not a universal trait in the genus Flavobacterium.
Journal ArticleDOI
Correlations between potassium, rubidium and cesium (133Cs and 137Cs) in sporocarps of Suillus variegatus in a Swedish boreal forest
TL;DR: An analysis of sporocarps of ectomycorrhizal fungi Suillus variegatus assessed whether cesium ((133)Cs and (137)Cs) uptake was correlated with potassium (K) or rubidium (Rb) uptake, and found no differences between, within or, among genotypes in S.variegatus.
Journal ArticleDOI
Accumulation and localization of cesium in edible mushroom (Pleurotus ostreatus) mycelia.
Hideo Sugiyama,Mitsuko N. Takahashi,Hiroshi Terada,Chikako Kuwahara,Chika Maeda,Yojiro Anzai,Fumio Kato +6 more
TL;DR: It was observed that yellowish spots caused by the fluorescence of 4',6-diamidino-2-phenylindole (DAPI)-stained polyphosphate were localized in the mycelia, suggesting that Cs in theMycelia was trapped by polyph phosphate in vacuoles or other organelles.
References
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Book
Environmental chemistry of the elements
TL;DR: In this paper, the authors propose a method to solve the problem of how to find the shortest path between two points of interest in a set of images. Index Reference Record created on 2004-09-07, modified on 2016-08-08
Journal ArticleDOI
Accumulation of radiocesium in basidiomycetes collected from Japanese forests
S. Yoshida,Yasuyuki Muramatsu +1 more
TL;DR: The 137Cs concentrations in mycorrhizal fungi tended to be higher than those in saprophytes, although the concentration range of each type varied widely, and high concentrations in several Hebeloma species, ammonia fungi, were observed.
Journal ArticleDOI
Uptake and accumulation of 137Cs by upland grassland soil fungi: a potential pool of Cs immobilization
TL;DR: It is estimated that the fungal component of the soil could immobilize the total radiocaesium fallout received in upland grasslands following the Chernobyl accident.
Journal ArticleDOI
Radioactivity in fungi in Slovenia, Yugoslavia, following the Chernobyl accident
TL;DR: From the 137Cs/134Cs ratios, which reflect the depth of the mycelium and the excess 137Cs from historic pre-Chernobyl fallout, it may be surmised that radiocaesium levels in certain species will probably increase further next year and subsequently as Cs migrates down the soil profile.
Journal ArticleDOI
Uptake and transfer factors of 137Cs by mushrooms.
TL;DR: The137Cs content of 118 species of higher fungi collected in the period from August 1984 to October 1989 at three different locations in Styria, Austria, was determined by gamma-spectrometry.