article · Journal of Environmental Science and Health Part B
This research evaluates the accumulation of mercury in the wild mushroom Amanita vaginata, commonly known as the Grisette, alongside the underlying soil. Samples were gathered between 2000 and 2008 across seven distinct locations in Poland and analysed using cold atomic absorption spectrometry. Across the sampled sites, average mercury concentrations in mushroom caps ranged from 0.096 to 0.48 milligrams per kilogram of dry matter, while stipes contained lower amounts, ranging from 0.047 to 0.23 milligrams per kilogram. The underlying soil exhibited mean mercury levels between 0.035 and 0.096 milligrams per kilogram. Ratios comparing caps to stipes confirmed that mercury preferentially accumulates in the mushroom caps. Based on bioconcentration factors reaching up to 11 for caps and 7.4 for stipes, the species demonstrates a clear capacity to bioconcentrate mercury from soil into its fruiting bodies.
Wild mushrooms can absorb and concentrate heavy metals from their environment, posing potential toxicological concerns for food safety and environmental health. Understanding how specific fungi like Amanita vaginata take up mercury from the soil helps researchers assess baseline metal accumulation patterns and track environmental contamination in natural ecosystems.
The abstract does not indicate an application pathway or commercial use for these baseline environmental findings.
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This study examined the mercury concentration in the Grisette Amanita vaginata Fr. and soil below the fruiting bodies collected between 2000 and 2008 from the wild at seven distant sites across Poland. The Hg content in samples was determined by cold atomic absorption method (CV-AAS) at a wavelength of 253.7 nm. Mean Hg contents varied from 0.096 ± 0.052 to 0.48 ± 0.13 mg kg(-1) dry matter (dm) in caps (range, 0.043-0.73 mg kg(-1)), from 0.047 ± 0.02 to 0.23 ± 0.07 mg kg(-1) dm (range, 0.028-0.47 mg kg(-1)) in stipes, and in underlying soil were from 0.035 ± 0.018 to 0.096 ± 0.036 mg kg(-1) dm (range, 0.017 to 0.16 mg kg(-1)). The median Qc/s values ranged from 1.2 to 2.2 (mean 1.2 ± 0.4 to 2.1 ± 0.5) indicating that Hg content in stipes was generally lower than in caps. This mushroom species has some potential to bioconcentrate Hg in the fruiting bodies, as the values of the bioconcentration factor (BCF) varied for the sites between 1.2 ± 0.6 to 11 ± 5 for caps and 0.61 ± 0.26 to 7.4 ± 3.9 for stipes. Also available literature data on Hg in A. vaginata are reviewed and discussed.
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DOI: 10.1080/03601234.2014.896677
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