The ratio in fungi as an indicator of the major mycelium location in forest soil

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

doi:10.1016/s0265-931x(96)00051-3

Cited by 53 publications

(19 citation statements)

References 14 publications

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“…However, taking into account that all sampled mushrooms species are of mycorrhizal type it was assumed that their mycelia are located in AoH horizon. This is in accordance with data reported by [5]. It is known that mosses are characterised by air type of nutrition, however some nutrients such as potassium and calcium are also transferred to mosses via rizosphere from litter.…”

Section: Correlation Between Exchangeable and Available Fractions Of supporting

confidence: 93%

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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Section: Correlation Between Exchangeable and Available Fractions Of supporting

confidence: 93%

Comparative analysis of¹³⁷Cs bioavailability in forest ecosystems of different type

2002

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“…In this site, the soil layers from which certain species of mushrooms take up radiocesium were estimated by using the l "Cs/ li4 Cs ratios [10]. Totally 25 soil profiles were randomly taken within an area of about 100 x 100 m 2 of the investigated site in 1993, 1995 and 1996.…”

Section: Sampling and Measurementsmentioning

confidence: 99%

“…For comparison, samples of a berry plant were also sampled. Further details of sampling methods in Germany are given elsewhere [10,11].…”

Section: Sampling and Measurementsmentioning

confidence: 99%

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Stable elements - as a key to predict radionuclide transport in forest ecosystems

Yoshida¹,

Muramatsu²,

Steiner

et al. 2002

Radioprotection

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Abstract. As the chemical behavior of radiocesium is expected to be almost identical to that of stable Cs, analyses of stable Cs and related stable elements should be useful to understand the long-term behavior of radiocesium and its equilibrium distribution in forest ecosystems. In this study, the concentrations of stable Cs and related alkali and alkaline earth elements in mushrooms, plants and soils were determined by inductively coupled plasma-mass spectrometry (ICP-MS) or inductively coupled plasma-atomic emission spectrometry (ICP-AES). Samples were collected in forests with different contamination levels in Japan. Germany, Finland, Italy, Ireland and Belarus. Vertical distributions in soils, and concentrations in mushrooms and plants were summarized for radiocesium and related stable elements. Relationship between radiocesium and stable Cs in mushrooms and plants, and transfer from soil to vegetation were also discussed. The results indicated that the ratio between radiocesium and stable Cs is useful for judging the equilibrium of deposited radiocesium in different parts of a forest ecosystem. The stable Cs analyses might be also useful to predict the long-term radiocesium contamination of mushrooms and plants.

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“…Radioactive 137 Cs presented similar to 133 Cs behavior, where 137 Cs activity increased in the order soil<mycelium<fungal sporocarps (Vinichuk & Johanson, 2003;Vinichuk et al, 2004). The differences between fungal species in their preferences for uptake of 137 Cs or stable 133 Cs appear to reflect the location of the fungal mycelium relative to that of cesium within the soil profile (Rühm et al, 1997 Cs (Yoshida & Muramatsu, 1998). The differing behavior of the natural and radioactive forms of 133 Cs may derive from their disequilibrium in the ecosystem (Horyna & Řanad, 1988).…”

Section: Methodsmentioning

confidence: 96%

Cesium (137Cs and 133Cs), Potassium and Rubidium in Macromycete Fungi and Sphagnum Plants

Vinichuk¹,

Dahlberg²,

Rosén³

2011

Radioisotopes - Applications in Physical Sciences

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The ratio in fungi as an indicator of the major mycelium location in forest soil

Cited by 53 publications

References 14 publications

Comparative analysis of¹³⁷Cs bioavailability in forest ecosystems of different type

Comparative analysis of¹³⁷Cs bioavailability in forest ecosystems of different type

Stable elements - as a key to predict radionuclide transport in forest ecosystems

Cesium (137Cs and 133Cs), Potassium and Rubidium in Macromycete Fungi and Sphagnum Plants

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The ratio in fungi as an indicator of the major mycelium location in forest soil

Cited by 53 publications

References 14 publications

Comparative analysis of137Cs bioavailability in forest ecosystems of different type

Comparative analysis of137Cs bioavailability in forest ecosystems of different type

Stable elements - as a key to predict radionuclide transport in forest ecosystems

Cesium (137Cs and 133Cs), Potassium and Rubidium in Macromycete Fungi and Sphagnum Plants

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Comparative analysis of¹³⁷Cs bioavailability in forest ecosystems of different type

Comparative analysis of¹³⁷Cs bioavailability in forest ecosystems of different type