Accumulation of trace elements by wild mushrooms in West part of Russia (South-Eastern Baltic)

Abstract

Trace elements accumulating capacity of wild mushrooms are discussing in this paper. Metals such as Ag, Cd, Co, Cu, Cr, Fe, Mn, Ni, Pb, were determined using AAS techniques in samples of fruiting bodies of 30 wild-growing mushrooms species. The concentration factors of elements were calculated. Data analyses have shown that some species of mushrooms have a high selective ability to cadmium and silver despite of negligible concentration of these elements in the substrate. B.edilis accumulated cadmium and silver extremely. There were no obvious relationships between the contents of the observed metals in fruiting bodies and the contents of total metals in the upper layer of soil. But the mass fraction of metals depended of the distance from industrial plants and cities.Mots-clés Keywords trace elements, toxic metals, accumulation, wild mushrooms. RésuméLa capacité des champignons sauvages à accumuler les éléments traces est discutée ici. Des métaux tels que Ag, Cd, Co, Cu, Cr, Fe, Mn, Ni, Pb, ont été détectés par AAS dans des échantillons de 30 espèces de champignons sauvages (fructi cations). Les facteurs de concentration des éléments traces ont été calculés. L'analyse des données a montré que certaines espèces de champignons ont une capacité d'accumulation très sélective au cadmium et à l'argent, alors que la concentration pour ces éléments est négligeable dans le substrat. B.edilis accumule de façon importante le cadmium et l'argent. Il n'y avait pas de relations évidentes entre le contenu en métaux observés dans les organes de fructi cation des champignons et le contenu en métaux totaux dans la couche supérieure du sol. La fraction massique en métaux est toutefois proportionnelle à la distance aux industries et aux villes.

Update on element content profiles in eleven wild edible mushrooms from family Boletaceae

“…In analyzed species, concentration of silver was different from one species to another, ranging between 0.14 mg/kg in X. chrysenteron and 6.08 mg/kg in B. rhodoxanthus species. In samples collected in west part of Russia, the Ag values were in range of 1.3-4.3 mg/kg for B. edulis and 1.4 mg/kg for X. chrysenteron [25]. The Ag concentration in examined B. edulis (2.11 mg/kg) agrees well with concentration reported in the literature for B. edulis by Falandysz et al [10] (0.16-2.6 mg/kg).…”

Air Pollution Monitoring in the south-east baltic using the epiphytic lichen hypogymnia physodes

“…With the use of existing monitoring grid, samples of the lichen H. physodes were collected from 54 forest plots measuring 50 × 50 m ( Figure 1). This grid has been employed since 1999 to monitor trace elements in the atmospheric transport and deposition [36][37][38]. Sampling points should be located at sites representative of non-urban areas, at least 300 m from main roads, villages and industries, and at least 100 m away from smaller roads and houses [39].…”

Direct and Indirect Neurotoxic Potential of Metal/Metalloids in Plants and Fungi Used for Food, Dietary Supplements, and Herbal Medicine

“…Fungi are particularly effective in changing the solubility mushroom) collected in Croatia [31]. Cadmium and silver are also taken up by B. edulis [32]. Analysis of 14 wild edible mushrooms collected in Yunnan, China, identified high concentrations of manganese (13.5-113 mg/kg) and iron (67.5-843 mg/kg) [33].…”

“…Reports focused on tissue mercury content [ 28 , 29 ] found high levels (4.9–22 mg kg dw) in edible Boletus species in the mercuriferous belt of southwestern China [ 30 ] and lower levels (2.28 mg/kg) in B. edulis (edible Penny Bun mushroom) collected in Croatia [ 31 ]. Cadmium and silver are also taken up by B. edulis [ 32 ]. Analysis of 14 wild edible mushrooms collected in Yunnan, China, identified high concentrations of manganese (13.5–113 mg/kg) and iron (67.5–843 mg/kg) [ 33 ].…”