Radiocaesium pollution of fly agaric Amanita muscaria in fruiting bodies decreases with developmental stage
PBN-AR
Instytucja
Wydział Chemii (Uniwersytet Gdański)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Isotopes in Environmental and Health Studies
ISSN
1025-6016
EISSN
Wydawca
DOI
URL
Rok publikacji
2019
Numer zeszytu
3
Strony od-do
317-324
Numer tomu
55
Identyfikator DOI
Liczba arkuszy
0.5
Autorzy
(liczba autorów: 4)
Pozostali autorzy
+ 3
Autorzy przekładu
(liczba autorów przekładu: 0)
Słowa kluczowe
en
Caesium-137
potassium-40
mushrooms
natural radioactivity
radioactive pollution
Streszczenia
Język
en
Treść
Amanita muscaria collected from a forested area in northern Poland in 2015 were analysed for activity concentrations of 137Cs and 40K. Total K concentration values were calculated from 40K data. Mushrooms were grouped in six fruiting bodies size classes regarding to their developmental stage. The 137Cs activity concentrations declined in A. muscaria as the fruiting bodies maturated. The contents of 40K/K activity remained constant in caps at different developmental stage, while for stipes an increase was around twofold (40K from 925 ± 55 Bq kg−1 dry biomass in the baby individuals and 1600 ± 63–1700 ± 53 Bq kg−1 dry biomass in two oldest classes). A. muscaria is a weak accumulator of 137Cs, while a steep drop in activity concentrations of this nuclide in the fruiting bodies as they maturate has not been reported earlier for mushrooms. Clearly, a fate of 137Cs in A. muscaria is highly different from that of 40K/K that is an essential element to fungi. In parallel, an observed increase in the content of 40K/K in stipes of fruiting bodies with developmental state can be related to its ‘hardening’ and more fibrous nature with age and basic function to support the cap, but this has not been studied.
Inne
System-identifier
UOG70a6fd9c0b094433b2f11541bd6ecc72
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