The Bioaccumulation of Some Heavy Metals in the Fruiting Body of Wild Growing Mushrooms

Notulae Botanicae Horti Agrobotanici Cluj-Napoca 01/2010;
Source: DOAJ

ABSTRACT Due to their effective mechanism of accumulation of heavy metals from soil, the macrofungi show high concentrations of metals in their fruiting body. According with this ability, the mushrooms can be used to evaluate and control the level of environmental pollution, but also represent danger for human ingestion. We analyzed some macrofungi species from a wooded area to establish the heavy metal concentrations and ability of bioaccumulation and translocation for Zn, Cu and Sn in fruiting body. The metallic content was established by the Inductively Coupled Plasma-Atomic Emission Spectrometry method (ICP-AES). The minimal detection limits of method is 0.4 mg/kg for Zn and Cu and 0.6 mg/kg for Sn. Heavy metals concentrations in the fruiting body ranged between 6.98-20.10 mg/kg for Zn (the higher value was for Tapinella atrotomentosa); 16.13-144.94 mg/kg for Cu (the higher value was for Hypholoma fasciculare); and 24.36-150.85 mg/kg for Sn (the higher value was for Paxillus involutus). The bioaccumulation factor has important values (higher than 1) only for copper in all the analyzed species (between 1.30 and 8.86) and for tin in Paxillus involutus species (1.19). The translocation factor shows that zinc and tin were accumulated in higher concentrations in cap of mushrooms and the copper had higher concentrations in stipe.

  • [Show abstract] [Hide abstract]
    ABSTRACT: Many previous studies revealed a high ability of mushrooms to accumulate heavy metals from environment. This paper concerns the capacity of some wild macromycetes belonging to Russula genus to accumulate heavy metals in natural condition of pH (between 6.5 and 6.8) and the pattern of metal translocation in the fruiting body. The studied Russula species are Russula virescens, Russula cyanoxantha, Russula foetens, and Russula nigrescens, which were harvested from forestry ecosystem from South Romania. The metal concentration in mushrooms and their substrate was established by EDXRF method. The concentrations of iron (Fe), zinc (Zn), and copper (Cu) in the fruiting body depends on species and vary between 58.83-340.34, 19.70-99.62, and 5.03-9.37 mg/kg for Fe, Zn, and Cu, respectively. The bioaccumulation factor has subunit values for the three studied trace metals, which show the low capacity of these species of mushrooms to accumulate metals if the concentrations in soil increase over the normal threshold for these elements. The high values of translocation factor demonstrate the mobility of Fe, Zn, and Cu in the studied mushrooms.
    Environmental Science and Pollution Research 01/2011; 18(6):890-6. · 2.76 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Many of mushrooms species from the Kichevo area (Republic of Macedonia) are consumed by the native population regardless on the heavy metals content and uptake in the human body. For the analyses of heavy metals concentration we chose 12 species of common wild mushrooms species, most of them edible and part with uncertain edibility: Amanita rubescens, Amanita vaginata, Boletus aestivalis, Boletus aereus, Boletus erythropus, Boletus, regius, Cantharellus cibarius, Marasmius oreades, Pleurotus ostreatus, Russula cyanoxantha, Suillus granulatus and Suillus luteus. Heavy metals concentration was determined by wet digestion in HNO3 and H2O2 followed by atomic absorption spectrometry. Heavy metals concentration in the fruiting body differed significantly between analyzed mushrooms species. The highest value of Cd (over 1 mg·kg-1) was recorded in Russula cyanoxantha (over European Union limit value) while Amanita rubescens, Amanita vaginata, Boletus aestivalis had Cd concentrations of ~0.6 mg·kg-1. Cantharellus cibarius and Boletus regius had highest Ni content (above 10 mg·kg-1). High Cu content (over 35 mg·kg-1) was found in Marasmius oreades and Amanita vaginata. These two species and Boletus aestivalis accumulated also Mn and Zn.
    4th International Conference of Ecosystems, Tirana, Albania, May 23 - 26, 2014, Tirana, Albania; 05/2014
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: The patterns of uptake and distribution of Co, Ni, Cu, Zn, Cd, and Pb in the soil-mycelium-sporocarps compartments in various transfer steps are presented. I attempted to find out whether there is a difference between the uptake of metals from soil to fungi (mycelium/soil ratio) and transport within fungal thalli (sporocarps/mycelium ratio). The concentration of Cu, Zn, and Cd increased in the order bulk soil < soil-root interface (or rhizosphere) < fungal mycelium < fungal sporocarps. The concentration of Co, Ni, and Pb decreased in the order bulk soil (or rhizosphere) < fungal mycelium < soil-root interface < fungal sporocarps. The uptake of Cu, Zn, and Cd during the entire transfer process in natural conditions between soil and sporocarps occurred against a concentration gradient. Mycorrhizal fungi (mycelium and sporocarps) only absorbed Co, Ni, and Pb but did not accumulate these elements in their thalli. Metal accumulation within fungal mycelium biomass in the top forest soil layer (0–5 cm) may account for about 5% of the total amount of Co, 4% Ni, 7% Cu, 8% Zn, 24% Cd, and 3% Pb.
    ISRN Ecology. 07/2012; 2012.

Full-text (2 Sources)

Available from
Jun 2, 2014