Uptake of radiocaesium by different species of mushrooms

Kammerer, L.; Hiersche, L.; Wirth, E.

doi:10.1016/0265-931x(94)90057-4

Cited by 75 publications

(30 citation statements)

References 4 publications

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“…High concentrations of radioactivity incorporation may be induced by widespread distribution of mycelia near the litter surface. Because radiocesium activity at each soil depth changes with time, radiocesium activity in different fungal species at different mycelial depths are also expected to vary with time (Rühm et al 1998 ; Cs migrates very slowly into the A horizon (Kammerer et al 1994 ;Pietrzak-Flis et al 1996 ;Rühm et al 1998 ). Thus, the changes are expected to be different between P. lubrica and other fungal species.…”

Section: Relationship Between Mushroom Contamination and Radiocesium mentioning

confidence: 99%

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Mushrooms: Radioactive Contamination of Widespread Mushrooms in Japan

Yamada

2013

Agricultural Implications of the Fukushima Nuclear Accident

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High concentrations of radionuclide contamination of wild mushrooms occurred near the Fukushima Daiichi nuclear power plant and along the path of radioactive plumes. This is a serious problem for the forest ecosystem and commercial wild mushroom production. Radioactivity in wild mushrooms collected from low-level contamination forest areas throughout Japan was measured approximately 6 months after the accident. In general, the radioactivity in mushrooms did not exceed those in the neighboring forest litter. However, further accumulation of 137 Cs is expected in mushrooms; therefore, continuous monitoring is necessary even in low-contamination areas. We also found that residual 137 Cs radioactivity due to nuclear weapons tests, mainly in 1950s, besides fallout from the Fukushima nuclear accident still remained in soil and was accumulated by mushrooms.

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Section: Relationship Between Mushroom Contamination and Radiocesium mentioning

confidence: 99%

“…Mushrooms have been reported to accumulate radiocesium (Byrne 1988 ;Kammerer et al 1994 ;Mascanzoni 1987 ;Muramatsu et al 1991 ;Sugiyama et al 1990Sugiyama et al , 1994. For example, the transfer factors (TF) for radiocesium in mushrooms were reported to be 2.6-21 in several culture tests (Muramatsu et al 1991 ;Ban-nai et al 1994 ).…”

Section: Introductionmentioning

confidence: 99%

Mushrooms: Radioactive Contamination of Widespread Mushrooms in Japan

Yamada

2013

Agricultural Implications of the Fukushima Nuclear Accident

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“…Quantitatively, mycorrhizal transport is most important for plant nutrients like NH 4 and PO 4 , but both essential and nonessential trace elements may take the same route (23). It is well known that many ectomycorrhizal fungi accumulate radiocesium, and during the years following the Chernobyl nuclear accident in April 1986, fruiting bodies of many ectomycorrhizal fungi were found to contain high levels of radiocesium (1,10,20). In certain soils, radiocesium held in belowground fungal biomass was found to account for a large part of the soil's radiocesium content (9,26,27).…”

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confidence: 99%

No Significant Contribution of Arbuscular Mycorrhizal Fungi to Transfer of Radiocesium from Soil to Plants

Joner

Roos²,

Jansa

et al. 2004

Appl Environ Microbiol

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The diffuse pollution by fission and activation products following nuclear accidents and weapons testing is of major public concern. Among the nuclides that pose a serious risk if they enter the human food chain are the cesium isotopes 137 Cs and 134 Cs (with half-lives of 30 and 2 years, respectively). The biogeochemical cycling of these isotopes in forest ecosystems is strongly affected by their preferential absorption in a range of ectomycorrhiza-forming basidiomycetes. An even more widely distributed group of symbiotic fungi are the arbuscular mycorrhizal fungi, which colonize most herbaceous plants, including many agricultural crops. These fungi are known to be more efficient than ectomycorrhizas in transporting mineral elements from soil to plants. Their role in the biogeochemical cycling of Cs is poorly known, in spite of the consequences that fungal Cs transport may have for transfer of Cs into the human food chain. This report presents the first data on transport of Cs by these fungi by use of radiotracers and compartmented growth systems where uptake by roots and mycorrhizal hyphae is distinguished. Independent experiments in three laboratories that used different combinations of fungi and host plants all demonstrated that these fungi do not contribute significantly to plant uptake of Cs. The implications of these findings for the bioavailability of radiocesium in different terrestrial ecosystems are discussed.

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“…Depending on hydrological regime of forest soils the radiocaesium Tag for trees, mushrooms, berries and shrubs can vary over a range of more than three orders of magnitude ( [2,1,3,7]). Several another factors that can cause the observed variation in Tag have been identified.…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of¹³⁷Cs bioavailability in forest ecosystems of different type

2002

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Abstract.A quantitative analysis of ,37 Cs bioavailability in forest soils in the long term after the Chernobyl NPP accident based on a 3 years (1996-1998) investigation is presented. Five sites with different trees composition and properties of soil were studied to identify factors determining radiocaesium transfer to trees and different under story species. The following parameters were investigated: ,,7 Cs activity concentrations and its speciation in various horizons of forest soil, accumulation of this radionuclide by different species of under story vegetation and distribution of their root biomass in the soil profile. It has been shown that one decade after the deposition maximum l37 Cs activity in soil of the experimental sites considered is located in different soil layers dependent on moisture regime, characteristics of litter and soil properties. High level of heterogeneity of 137 Cs specific activity in different parts of tree, which is related to physiological peculiarities of their functions, has been shown. The data obtained have demonstrated a non-uniform character for i37 Cs distribution along trunks, which can be explained by radionuclide fixation by walls of xylem vessels and by changes in geometry along the tree trunk. It has been found that the radial distribution of l37 Cs in the tree trunk is dependent on the availability of 137 Cs in soil, which governs the transfer of this radionuclide via xylem sap, and on the properties of the xylem. The accumulation of m Cs by both trees and under story species was influenced by J7 Cs vertical distribution and availability in soil as well as by the root (mycelia) biomass distribution in different soil horizons. A "bioavailability factor", which takes into account the above factors, is proposed for comparative analyses of l37 Cs transfer from soil to plants in different types of forest ecosystems.

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Uptake of radiocaesium by different species of mushrooms

Cited by 75 publications

References 4 publications

Mushrooms: Radioactive Contamination of Widespread Mushrooms in Japan

Mushrooms: Radioactive Contamination of Widespread Mushrooms in Japan

No Significant Contribution of Arbuscular Mycorrhizal Fungi to Transfer of Radiocesium from Soil to Plants

Comparative analysis of¹³⁷Cs bioavailability in forest ecosystems of different type

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Uptake of radiocaesium by different species of mushrooms

Cited by 75 publications

References 4 publications

Mushrooms: Radioactive Contamination of Widespread Mushrooms in Japan

Mushrooms: Radioactive Contamination of Widespread Mushrooms in Japan

No Significant Contribution of Arbuscular Mycorrhizal Fungi to Transfer of Radiocesium from Soil to Plants

Comparative analysis of137Cs bioavailability in forest ecosystems of different type

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Comparative analysis of¹³⁷Cs bioavailability in forest ecosystems of different type