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Investigation on metallic elements in fungus Amanita muscaria (Fly Agaric) and the forest soils from the Mazurian Lakes District of Poland

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Abstract

In the current study, we determined concentrations and bioconcentration potential of Ag, AI, Ba, Ca, Cd, Co, Cu, Cr, Fe, Hg, K, Mg, Mn, Na, Ni, Rb, Sr and Zn by Fly Agaric fungus (Amanita muscaria). Caps and stipes of Fly Agaric and the upper 0-10 cm layer of the soils collected from the outskirts of Kȩtrzyn town in the Mazurian Lake District of Poland have been examined. The elements were determined using validated methods - inductively coupled plasma atomic emission spectroscopy (ICP-AES) and cold vapor atomic absorption spectrometry (CV-AAS). K, Mg, Ca and Zn were the most abundant among the elements determined in the fungus. Cd, K, Rb, Hg, Cu and Zn were effectively absorbed by the fungus underlining its biogeochemical role in their turnover in the forest ecosystems. Contrary, Ag, Al, Ba, Ca, Co, Cr, Fe, Mn, Mg, Na and Sr showed BCF <1, what implies on their exclusion by the fungus. In spite of low potential for bioconcentration of Ca, Fe, Mn and Mg, Fly Agaric can be also considered to be a species involved in their biogeochemical turnover in the forests ecosystems.
© by PSP Volume 22 – No 2. 2013 Fresenius Environmental Bulletin
455
INVESTIGATION ON METALLIC ELEMENTS IN FUNGUS
AMANITA MUSCARIA (FLY AGARIC) AND THE FOREST
SOILS FROM THE MAZURIAN LAKES DISTRICT OF POLAND
Małgorzata Drewnowska*, Krzysztof Lipka,
Grażyna Jarzyńska, Dorota Danisiewicz-Czupryńska and Jerzy Falandysz
Research Group of Environmental Chemistry, Ecotoxicology & Food Toxicology, Institute of
Environmental Sciences & Public Health, University of Gdańsk, 19 Sobieskiego Str., 80-952 Gdańsk, Poland
ABSTRACT
In the current study, we determined concentrations
and bioconcentration potential of Ag, Al, Ba, Ca, Cd, Co,
Cu, Cr, Fe, Hg, K, Mg, Mn, Na, Ni, Rb, Sr and Zn by Fly
Agaric fungus (Amanita muscaria). Caps and stipes of Fly
Agaric and the upper 0-10 cm layer of the soils collected
from the outskirts of Kętrzyn town in the Mazurian Lake
District of Poland have been examined. The elements
were determined using validated methods - inductively
coupled plasma atomic emission spectroscopy (ICP-AES)
and cold vapor atomic absorption spectrometry (CV-AAS).
K, Mg, Ca and Zn were the most abundant among the ele-
ments determined in the fungus. Cd, K, Rb, Hg, Cu and Zn
were effectively absorbed by the fungus underlining its
biogeochemical role in their turnover in the forest ecosys-
tems. Contrary, Ag, Al, Ba, Ca, Co, Cr, Fe, Mn, Mg, Na
and Sr showed BCF <1, what implies on their exclusion
by the fungus. In spite of low potential for bioconcentra-
tion of Ca, Fe, Mn and Mg, Fly Agaric can be also con-
sidered to be a species involved in their biogeochemical
turnover in the forests ecosystems.
KEYWORDS:
forest, Fly Agaric, fungi, metals, soil
1 INTRODUCTION
Macrofungi play a vital role in metallic elements and
metalloids turnover in the forest ecosystems [1-15]. Mush-
rooms are an important piece in the forest food chains,
because they are eaten by numerous animals and are rich in
mineral substances [7, 16-20]. An ability of fungi to dis-
solve, up-take and accumulate in their flesh metals that are
contained in mineral and humified fraction of soils, is of
primarily role in introducing them into the biosphere [2,
15]. The uptake process and sequestration of heavy metals
* Corresponding author
in fruiting bodies depend on environmental factors, and on
the particular genetic characteristics of each species [19,
21-31].
Edible wild mushrooms are considered to be delicacy
and they are source of many essential elements [32-39].
However, fungi can contain both the essential mineral
nutrients and hazardous metals at elevated concentrations
[40-43]. Mercury, cadmium and lead are considered as the
most hazardous ones [44, 45]. Compared to edible mush-
rooms, a much less attention is devoted to inedible spe-
cies. One of the most recognizable inedible mushrooms is
Amanita muscaria (Fly Agaric). This species occurs com-
monly in the forests of Europe and is easily recognizable as
having a beautiful red cap with white patches. Because of
the hallucinogenic properties of A. muscaria was used
during religious rites and rituals by shamans/sorcerers, e.g.
Tribal peoples of Siberia [46-48]. A. muscaria belongs to
the ectomycorrizal fungi, which have specific morphologi-
cal and physiological properties. The mineral compound
composition of the Basidiomycetes was a subject of wide
interest in the recent decade of years. Potassium and
phosphorous are major mineral compounds in flesh of
mushrooms but many others can be accumulated to ele-
vated concentrations also e.g. cadmium, mercury, lead
vanadium and selenium [15, 40, 49-51].
The aim of this study was to characterize a profile of
17 metals and their bioconcentration potential by Fly Aga-
ric collected from Mazury Lake District in the Kętrzyn
region in north-eastern part of Poland.
2 MATERIALS AND METHODS
Fifteen mature specimens of Fly Agaric (Amanita mus-
caria) and, beneath to them, surface layer of soils (0-10 cm;
100 g) were collected from forested areas localised at east
(Kwiedzina site) and south-east (Zalesie Kętrzyński site) to
town of Kętrzyn in Masuria land of Poland, in 1999. The
sampling site was situated far away from any pollution
sources, like plants or high-density traffic roads. The sam-
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456
ples were divided into caps and stalks, carefully hand-
cleaned using a plastic knife to remove the attached soil
particles and other debris (e.g. leaves), dried to constant
weight, crushed and pulverized in an agate mortar, and kept
in dry condition in sealed polyethylene bags until chemical
analysis. Next, the pulverized sub-samples (~0.5 g) of caps
and stipes were weighted into polytetrafluoroethylene
(PTFE) vessels, pre-digested for 24 h with 7 ml concen-
trated nitric acid (65%, Suprapure, Merck) at room tem-
perature, and further digested under pressure in an auto-
matic microwave digestion system type MARS 5 of CEM
corp., Matthews, NC, USA. The digest was diluted to 25
ml using deionized water and stored until instrumental
analysis.
The soil substrate samples were air-dried at room
temperature in clean conditions for a few weeks, and then
sieved (pore size 2 mm) and further dried in an electronic
oven at 40 ºC for 48 h. Metals from the soil samples (1.5 g)
were leached using 10 ml of 20% nitric acid solution (Su-
prapure, Merck) in open PTFE vessels, that were gently
heated up to 105 ºC for 2 h. After cooling, the leachates
obtained were filtered through Whatman No. 42 filter paper
- directly into a volumetric flask, and volume was brought
to 25 ml with deionised water [52, 53].
Contents of 16 metals in fungus and soil were deter-
mined by inductively coupled plasma - optical emission
spectroscopy (ICP-OES; Optima 2000 DV, Perkin Elmer,
USA) and yttrium was used as an internal standard. Mer-
cury was determined by cold-vapour atomic absorption
spectroscopy (CV-ASA) using fully automated mercury
monitor (Mercury monitor 3200, Thermo Separation Pro-
ducts, USA). Each spectroscopic measurement for each
individual sample was repeated in triplicate. Detection limits
were as follows: K, Mg, Na 5 µg/g; Rb 1 µg/g; Al, Ag, Ca,
Cd, Co, Cr, Fe, Zn 0.1 µg/g; Ba, Cu, Mn, Sr 0.05 µg/g, and
Hg 0.005 µg/g dry weight. Both methods were well validated
on several occasions by participation in intercalibration
trials and by periodic analysis of certified reference mate-
rials and detailed results were given to the public [52-55].
Duplicates and blanks followed with every examined set
of 10 mushroom or soil samples.
3 RESULTS AND DISCUSSION
3.1 Fruiting bodies
Data obtained on metallic elements of Fly Agaric and
the soils are given in Table 1. Concentrations were char-
acterised by arithmetical mean values, the corresponding
standard deviations (SD), median values and ranges, and
expressed in µg/g on a dry weight basis (dw). Potassium,
followed by Mg, Al, Rb, Fe, Ca and Zn, occurred in the
greatest concentrations in Fly Agaric. In caps, K concentra-
tions ranged from 32000 to 45000, and in stipes from
26000 to 53000 µg/g dw. These are the values like shown
by Vetter [51] for some Amanitaceae mushrooms. For Bay
Bolete (Xerocomus badius) in a study by Malinowska et
al. [42] and for Poison Pax (Paxillus involutus) in studies
by Brzostowski et al. [52, 53], concentrations of K were
roughly similar or smaller than determined in Fly Agaric,
respectively (Table 1).
Magnesium concentration in caps varied from 600 to
870 and in stipes from 330 to 820 µg/g dw. Metals,
such as Rb, Al and Ca, were noted in caps of Fly Agaric
in comparable concentrations (Table 1), and Ca in stipes
(210±420 µg/g dw) was twice more abundant compared
to caps (113±58 µg/g dw). In the reports by Müller et al.
[56] and Rudawska and Leski [57], Al concentrations in
mushrooms were in the range of the median values de-
termined in caps and stipes of Fly Agaric in this study, i.e.
170 and 130 µg/g dw, respectively. Also for Fe, the me-
dian concentration values of 120 µg/g dw in caps and 100
µg/g dw in stipes of Fly Agaric agree with observations
for this species by Vetter [51] and Rudawska and Leski
[57], on the average.
Zinc was next in its abundance amongst the metals
determined in Fly Agaric (its caps 97±46 and stipes
61±24 µg Zn/g dw; Table 1). This species, in studies from
Czech Republic, Hungary and Poland, contained Zn in
caps at 130, 120 and 200 µg/g dw (data rounded), respec-
tively [32, 51, 57]. The median concentration values of
essential trace elements, such as Na, Cu and Na, in caps
were 34, 30 and 18 µg/g dw but in stipes 21, 15 and 17
µg/g dw, respectively (Table 1). Vetter [51] stated that
essential Cu concentration in several species of Amanita-
ceae mushrooms is in a relatively narrow range from 23
to 73 µg/g dw, and variability was low.
Ag, Ba, Co, Cr and Sr evidenced concentrations close
to 1 µg/g dw in Fly Agaric but many other mushrooms
were richer in Ag [6, 7]. Borovička et al. [3], in a recent
study, found the Warted Amanita (Amanita strobiliformis)
and the European Solitary Lepidella (A. solitaria) to be
species hyperaccumulating Ag.
Cd and Hg are highly toxic metals that can be effi-
ciently accumulated by many fungi in their fruiting bodies
[27-29, 39, 43]. Fly Agaric contained Cd in caps in 2-fold
greater concentration compared to stipes, and the medians
were 11 and 5.3 µg/g dw, respectively. In a study on King
Bolete (Boletus edulis), Cd was the only metal for which,
at the unpolluted forested areas of Poland, a positive ten-
dency was noted between concentrations determined in
flesh and in the soil substrates [58]. Fly Agaric, in this
study, contained Hg in ca. 2-fold concentrations in caps
(median: 0.68 µg/g dw) and stipes (0.46 µg/g dw), when
compared to the specimens from Umeå in Sweden, having
0.39±0.54 (caps) and 0.22±0.30 µg/g dw (stipes) [8]. In a
study of Fly Agaric from the Mierzeja Wiślana sand-bar,
the median values of Hg in caps and stipes were 0.15 and
0.096 µg/g dw, respectively [55], and for several other
regions of Poland, the median values were between 0.19
and 1.4 µg/g dw in caps and between 0.18 and 0.67 µg/g
dw in stipes [50].
Caps of Fly Agaric, on the average, contained Al, Cd,
Co, Cr, Cu, Fe, Hg, Mg and Rb in more or less greater
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457
TABLE 1 - Metallic elements content (µg/g dry weight; mean±SD, range and median values) of A. muscaria samples (n=15) and their cap to
stipe concentration quotient (QC/S) and bioconcentration (BCF) values
Metal Cap Stipe QC/S Soil BCFC BCFS
Ag 0.84±0.12
0.79
0.71-1.0
1.2±0.4
1.0
0.66-1.9
0.79±0.32
0.71
0.40-1.4
2.4±0.9
2.4
1.3-3.5
0.75±0.63
0.79
0.30-1.2
0.74±0.79
0.62
0.18-1.3
Al 200±97
170
88-460
160±72
130
79-330
1.3±0.4
1.2
0.67-2.4
17000±2000
16000
13000-21000
0.019±0.003
0.018
0.017-0.02
0.008±0.002
0.008
0.007-0.009
Ba 1.3±0.6
1.2
0.64-2.5
1.2±0.4
1.1
0.82-2.2
1.0±0.4
1.0
0.48-1.7
170±44
160
120-250
0.005±0.003
0.005
0.003-0.008
0.006±0.001
0.006
0.005-0.006
Ca 110±58
120
41-240
210±420
100
42-1800
1.1±0.5
0.92
0.07-2.0
510±140
550
240-630
0.17±0.09
0.15
0.11-0.24
0.15±0.04
0.15
0.12-0.18
Cd 11±3
11
4-14
5.5±1.8
5.3
1.5-7.7
2.0±0.4
1.9
1.4-2.5
0.045±0.020
0.040
0.027-0.076
260±140
290
16-350
160±99
180
89-230
Co 0.81±0.43
0.62
0.45-1.7
0.64±0.30
0.55
0.36-1.3
1.2±0.1
1.2
1.0-1.4
1.0±0.3
1.1
0.60-1.5
0.22±0.10
0.20
0.15-0.29
0.13±0.02
0.13
0.12-0.15
Cr 0.78±0.20
0.77
0.56-1.2
0.55±0.13
0.51
0.40-0.83
1.4±0.2
1.4
1.1-1.7
7.1±1.5
6.7
5.4-9.0
0.031±0.035
0.046
0.007-0.056
0.017±0.009
0.014
0.011-0.023
Cu 30±9
30
20-55
17±7
15
6.0-35
2.0±1.0
1.8
0.58-5.4
1.5±0.5
1.4
0.94-2.1
18±10
14
11-25
11±8
12
6-17
Fe 150±80
120
66-380
130±67
100
65-290
1.3±0.4
1.31
0,52-2,15
3400±790
3200
2620-4520
0.049±0.043
0.028
0.019-0.079
0.030±0.010
0.030
0.023-0.037
Hg 0.79±0.33
0.68
0.33-1.4
0.51±0.28
0.46
0.16-1.3
1.8±1.0
1.6
0.32-4.3
0.027±0.008
0.028
0.021-0.037
38±23
29
15-47
32±18
21
16-42
K 38000±3100
37000
32000-45000
36000±7300
36000
26000-53000
1.1±0.1
1.0
0.75-1.3
710±200
690
460-1020
45±19
49
32-58
44±26
41
25-62
Mn 17±7
18
8-29
20±17
17
8-81
1.1±0.3
1.1
0.14-1.7
130±55
140
56-190
0.062±0.045
0.060
0.030-0.094
0.078±0.061
0.053
0.035-0.12
Mg 710±74
710
600-870
510±110
500
330-820
1.4±0.2
1.4
0.90-1.9
1260±360
1200
870-1820
0.60±0.37
0.49
0.34-0.86
0.46±0.35
0.27
0.21-0.71
Na 36±25
34
12-119
20±9
21
12-36
0.71±0.38
0.64
0.28-1.9
24±6
23
16-34
0.76±0.51
0.73
0.40-1.1
0.82±0.32
0.81
0.60-1.0
Rb 180±180
110
38-620
110±110
65
28-350
1.6±0.2
1.7
1.3-2.0
5.8±1.9
5.5
3.5-8.7
20±20
25
6.0-35
14±15
17
3.0-24
Sr 0.41±0.17
0.40
0.23-0.73
0.40±0.23
0.34
0.22-1.2
1.1±0.4
1.1
0.38-2.0
27±5
26
22-35
0.011±0.005
0.011
0.007-0.014
0.010±0.001
0.010
0.009-0.011
Zn 97±46
65
37-210
61±24
77
26-110
0.97±0.56
0.93
0.16-2.1
12±1
12
9-13
8.6±4.0
7.5
5.7-11
5.8±3.1
5.1
3.6-8.0
concentrations compared to stipes whereas stipes were
enriched in Ag and Na compared to caps for Ag, Ba, Ca,
K, Mn, Sr and Zn, distribution was similar between these
two morphological parts (Table 1).
3.2 Soil
Al, Fe, Mg and K in upper soil layer at the unpolluted
sites are mainly supplied from the bed rock or the original
material of the soil [31]. In this study, the upper layer of
soils sampled at the stands of Fly Agaric collection con-
tained Al, Fe, Mg and K in median concentrations of 6000,
3200, 1200 and 690 µg/g dw, respectively (Table 1).
Toxic Cd and Hg in the soil examined were trace con-
taminants (median concentration of 0.040 and 0.028 µg/g
dw) (Table 1). Mercury, found in the soils of various
types, ranged between 0.050.2 µg/g dw, usually consid-
ered to be a “natural” level [44]. A surface of the forest
floor (humifying and mineral layers) is a known site of
airborne Hg accumulation while in the soil profile, Hg is
decreasing with increasing depth [59]. Several hundreds of
forest soils sampled across Poland contained Hg in theup-
per layer (0-10 cm) in concentrations between 0.011-
0.057 µg/g dw (range of median values) while at some
sites, median were noted, e.g. 0.098 (Rogalin), 0.14 (Sta-
© by PSP Volume 22 – No 2. 2013 Fresenius Environmental Bulletin
458
rachowice forest), 0.15 (Kłodzka Dale), 0.35 (Złotoryja),
or 0.45 µg/g dw (Karpacz) implying that there are con-
tamination problems ([16, 17, 38], unpublished data).
3.3 Bioconcentration
A potential of fungi, plants or animals to accumulate
chemical substances in their body is estimated by biocon-
centration factor (BCF). This parameter is calculated as
quotient of substance concentrations in the whole fruiting
body (carpophore, mushroom) or its parts such as cap or
stalk, compared to substratum colonized by mycelium,
and is expressed on dry weight basis. BCF >1 means the
ability to accumulate a substance but BCF <1 refers to
bio-exclusion. In this study, Cd, found at ultra-trace
amongst the metals determined in the soil, exhibited the
highest values of BCF (averaged 290 (caps) and 180 (sti-
pes)) (Table 1). A significance of Fly Agaric as a species
involved in the biogeochemical turnover of Cd and V in
the forest ecosystem was high-lined by Lepp et al. [15].
Fly Agaric is a spectacular example of ability to accumu-
late vanadium, identified as the metalorganic compound
amavadine.
Also K, Rb, Hg, Cu and Zn exhibited BCF >1 in caps
and stipes of Fly Agaric. For K and Rb, the median BCFs
for caps were 49 and 25, and for Cu and Zn 14 and 7.5,
respectively. The median BCF values for Hg were 29
(caps) and 21 (stipes) showing good availability of this
element to Fly Agaric in the soils surveyed. In earlier
studies of Fly Agaric and the soils from Mierzeja Wiślana
(1993-94) and Zaborski Landscape Park (1997-98), the
BCF values of Hg in caps were between 9.033, and in
stipes between 4.719 [26, 55]. The median BCF values for
Ag, Al, Ba, Ca, Co, Cr, Fe, Mn, Mg, Na and Sr were <1,
implying a limited up-take/availability and bio-exclusion
(Table 1).
In conclusion, Fly Agaric, apart from Cd and V, due
to high BCF values noted, plays also a biogeochemical
role in turnover of K, Rb, Hg, Cu and Zn in unpolluted
forests. Ca, Fe, Mn and Mg, inspite of low BCF values,
are also substances relatively abundant in fruiting bodies of
Fly Agaric, signifying its involvement in biogeochemical
turnover of forests ecosystems.
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Received: June 26, 2012
Revised: August 23, 2012
Accepted: August 27, 2012
CORRESPONDING AUTHOR
Małgorzata Drewnowska
University of Gdańsk
Institute of Environmental Sciences & Public Health
19 Sobieskiego Str.
80-952 Gdańsk
POLAND
Phone: +48 58 523 54 72, +48 58 34 504 45
Fax: +48 58 523 54 72
E-mail: malgorzata.drewnowska@gmail.com
FEB/ Vol 22/ No 2/ 2013 – pages 455 - 460
... The metallic and metalloid elements such as Ag, As, Cd, Cs, Cu, Fe, Hg, K, Mg, Rb, Se, and Zn are favorably distributed in caps and Cr, Na, Li, Cr, and U in stipes of fruiting bodies, while Ba, Co, Ni, Pb, Sr, Tl, and V shows an equal distribution between morphological parts of A. muscaria, but this may be influenced by some site-specific geochemical conditions of the soil substrata which can be mirrored in the BCF values for the sites (Drewnowska et al. 2013;Falandysz et al. 2007a, Falandysz et al. 2020Lipka et al. 2018;Lipka and Falandysz 2017). ...
... It is worth noting that each data point represents up to many tens of samples, with a low variability of measurement (the uncertainty is generally ± 0.01 mg kg -1 dw). The other potential source of variability in the metal content of (Drewnowska et al. 2013) and occur at all development stages with a cap to stipe concentration quotient (Q C/S ) of 1.8 which is the same as that reported earlier by Drewnowska et al. (2013). This is consistent with the functionality of the stipes which consist of sterile hyphal tissue that provides structural support and also serves to transport nutrients to the cap. ...
... It is worth noting that each data point represents up to many tens of samples, with a low variability of measurement (the uncertainty is generally ± 0.01 mg kg -1 dw). The other potential source of variability in the metal content of (Drewnowska et al. 2013) and occur at all development stages with a cap to stipe concentration quotient (Q C/S ) of 1.8 which is the same as that reported earlier by Drewnowska et al. (2013). This is consistent with the functionality of the stipes which consist of sterile hyphal tissue that provides structural support and also serves to transport nutrients to the cap. ...
Article
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Both mercury (Hg) and selenium (Se) occur in many mushroom species, but the morphological distribution of these elements during different developmental stages of the fruiting bodies is not known. Although Amanita muscaria can be consumed after suitable processing, they are often ignored by mushroom foragers, leaving an abundance for investigative study. Multiple specimens in each of six developmental stages (button to fully mature) were collected in excellent condition during a single morning from the same forested location and composited. With an average of 30 specimens per composite, and low temporal, spatial, and measurement uncertainty, the data are likely to be representative of the typical concentrations of Hg and Se for each developmental stage. Hg (range 0.58–0.74 mg kg ⁻¹ dry weight cap; 0.33 to 0.44 mg kg ⁻¹ dw stipe) and Se (range 8.3–11 mg kg ⁻¹ dw cap; 2.2 to 4.3 mg kg ⁻¹ dw stipe) levels were observed to vary during the developmental stages, and the variability may relate to the demands in growth. In common with some other species, the lower stipe concentrations may be consistent with nutrient/contant transport and support functions. Both Hg and Se levels were lowest during periods of maximum sporocarp growth. Selenium occurs at almost an order of magnitude greater levels than Hg. Due to its role in mitigating the effects of Hg toxicity, this property is of significance to those who consume the species either for nutritional, medicinal, or recreational purposes, although the losses of both these elements during processing are not known.
... On the other hand, Fe concentrations of G. fimbriatum and S. imbricatus were found to be higher than all the literature data regarding these species (Colak et al. 2009;Sesli and Dalman 2006). Additionally, the data on the Fe content of A. muscaria, A. mellea, F. pinicola, and H. fasciculare were higher than some published data (Colak et al. 2009;Demirbaş 2001a;Drewnowska et al. 2013;Falandysz et al. 2007Falandysz et al. , 2018Falandysz and Treu 2019;Konuk et al. 2007;Lipka and Falandysz 2017;Rudawska and Leski 2005;Sevindik et al. 2017;Tüzen et al. 1998;Wang et al. 2017). As a result of analysis of Mn contents of mushroom samples, the sample with the lowest Mn concentration was F. pinicola (3.0 mg/kg). ...
... In addition, the data presented in Table 2 regarding the Zn content of A. muscaria, A. mellea, and H. fasciculare were also found to be lower than some literature data (Ayaz et al. 2011;Colak et al. 2009;Cuny et al. 2001;Demirbaş 2002;Falandysz et al. 2007Falandysz et al. , 2018Falandysz and Treu 2019;Huang et al. 2015;Isildak et al. 2004;Lipka and Falandysz 2017;Mazur et al. 2015;Mititelu et al. 2012;Rasalanavho et al. 2019;Rudawska and Leski 2005;Sesli and Dalman 2006;Sesli and Tuzen 2006;Sesli et al. 2008;Zavastin et al. 2018). However, some published data on the Zn concentration of A. muscaria (Demirbaş 2001a, b;Drewnowska et al. 2013), A. mellea (Kaya and Bag 2010;Konuk et al. 2007;Ouzouni et al. 2009;Sesli et al. 2008;Wang et al. 2017), and H. fasciculare (Demirbaş 2001a, b;Murati et al. 2019;Radulescu et al. 2010;Tüzen et al. 1998) appeared to be lower than in the current study. ...
... The data regarding the Cd contents of G. fimbriatum and S. imbricatus in the current study were found to be lower than all Cd concentration data published on these mushrooms (Mędyk et al. 2017;Sesli and Dalman 2006). Also, the data obtained regarding the Cd content of A. muscaria (Drewnowska et al. 2013;Falandysz et al. 2007Falandysz et al. , 2018Falandysz and Treu 2019;Kalač and Stašková 1991;Lipka and Falandysz 2017;Rudawska and Leski 2005), A. mellea (Petkovšek and Pokorny 2013), H. fasciculare (Demirbaş 2001a, b;Sesli and Dalman 2006;Tüzen et al. (Sesli and Dalman 2006) in the current study were lower than some literature data. However, the value obtained for the Cd content of A. mellea in the current study was higher than many literature data (Ayaz et al. 2011;Cuny et al. 2001;Demirbaş 2002;Huang et al. 2015;Isildak et al. 2004;Konuk et al. 2007;Mititelu et al. 2012;Ouzouni et al. 2009;Sesli and Tuzen 2006;Wang et al. 2017;Zavastin et al. 2018). ...
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The ability of mushrooms to accumulate heavy metals has increased concerns over their toxic effects on human health in recent years. The aim of this study was to determine the metal contents (Zn, Fe, Co, Mn, Cu, Pb, Ni, and Cd), daily intake of metal (DIM) and health risk index (HRI) values of nineteen different mushroom species (edible, inedible, and poisonous) collected from Uzungol, Trabzon (Turkey). Although the area where mushrooms were collected has the status of “Natural Park,” there has been an excessive human settlement in recent years. Elemental analyses have shown that Fe, Mn, Cu, Zn, Co, Cd, Pb, and Ni concentrations in mushrooms were in the following ranges: 49.0–1713.0, 3.0–425.0, 3.0–154.0, 16.0–134.0, 0.17–1.79, 0.28–7.88, 0.07–5.68, and 0.24–6.82 mg/kg dry weight, respectively. As a result of DIM analysis, while it was determined that the daily consumption of Hygrophorus pudorinus, Meripilus giganteus, and Sarcodon imbricatus was safe for all the metals examined, HRI analysis showed that only M. giganteus and S. imbricatus can be consumed safely. The content of Cd was found to be above the legal limits determined by the competent authorities. According to Pearson correlation analysis, the correlations between Fe-Pb, Cu-Zn, Cd-Co, Pb-Co, Cd-Fe, Co-Fe, Cd-Pb, and Fe-Mn pairs were statistically significant (p < 0.01). Although the data obtained from this study did not provide clear data on environmental pollution in the area where the samples were collected, it was concluded that the competent authorities should take measures regarding possible environmental pollution at this location.
... For example, Ag has been noted at 0.79 mg kg −1 dm in caps and 1.0 mg kg −1 dm in stipes in unpolluted forests, while in whole fruiting bodies in the range 0.68 ± 0.04-6.0 ± 0.2 mg kg −1 dm, and from polluted sites up to 16-48 mg kg −1 dm (Borovička et al. 2010;Drewnowska et al. 2013;Řanda and Kučera 2004;Vetter 2005). ...
... Barium in A. muscaria has been reported by other authors in concentrations similar to results from present study, i.e., they were at 3.4 ± 0.8 mg kg −1 dm in whole fruiting bodies or with medians of 1.2 mg kg −1 dm in caps and 1.1 mg kg −1 dm in stipes (Drewnowska et al. 2013;Vetter 2005). Also results for cadmium, which was reported at median concentrations of 12 mg kg −1 dm (range 2.3-28 mg kg −1 dm), at 30 mg kg −1 dm, 15 ± 1-25 ± 1 mg kg −1 dm and 11 ± 6 mg kg −1 dm in whole fruiting bodies as well as at 11 mg kg −1 dm in caps and 5.3 mg kg −1 dm in stipes (Drewnowska et al. 2013;Lepp et al. 1987;Quinche 1988;Řanda and Kučera 2004;Vetter 2005). ...
... Barium in A. muscaria has been reported by other authors in concentrations similar to results from present study, i.e., they were at 3.4 ± 0.8 mg kg −1 dm in whole fruiting bodies or with medians of 1.2 mg kg −1 dm in caps and 1.1 mg kg −1 dm in stipes (Drewnowska et al. 2013;Vetter 2005). Also results for cadmium, which was reported at median concentrations of 12 mg kg −1 dm (range 2.3-28 mg kg −1 dm), at 30 mg kg −1 dm, 15 ± 1-25 ± 1 mg kg −1 dm and 11 ± 6 mg kg −1 dm in whole fruiting bodies as well as at 11 mg kg −1 dm in caps and 5.3 mg kg −1 dm in stipes (Drewnowska et al. 2013;Lepp et al. 1987;Quinche 1988;Řanda and Kučera 2004;Vetter 2005). ...
Article
Full-text available
We examined the bio-concentration of and the bio-indicative potential for 16 metallic elements (Ag, Al, Ba, Ca, Cd, Co, Cu, Fe, Hg, K, Mg, Mn, Na, Rb, Sr and Zn) by Amanita muscaria (L.) Lam. using validated methods including inductively coupled plasma optical emission spectroscopy (ICP-OES) with an ultrasonic cross flow nebulizer and cold-vapor atomic absorption spectroscopy (CV-AAS). Mushrooms and top soil samples were collected from the large forest complexes of the Gostynińsko-Włocławskie Forests, the Warciańska-Notecka Forests and the Lubraniec site in the central region, as well as from the Poniatowa site in the Chodel river valley in the south-eastern region of Poland. For topsoil both the leachable and the “pseudo-total” fractions of minerals have been determined. A. muscaria is a good bio-concentrator of toxic Hg, and highly effective for labile forms of Cd, K and Rb, while it bio-excludes Ag, Al, Ba, Fe, Mn and Sr. The bioavailability of several elements, e.g. Ag, Ba, Cd, Hg and Sr, as demonstrated by the bioconcentration factor (BCF) values (the quotient of the element content in mushrooms to the content in soil, calculated on dry weight basis), and their content in fruiting bodies differed between the sites; however, this was not the case for the soils. This forest fungus is omitted by mushroomers, while due to a seasonal abundance, large size of fruiting bodies and high bioconcentration potential of Cd (medians of BCF for the leachable fraction up to > 1000 for caps and > 500 for stipes) and Hg (up to 27 for caps and to 21 for stipes) play a role in transfer of those toxic elements to forest biota feeding on it. Particularly important can be Cd, the median concentrations of which in caps were in the range 13–22 mg kg⁻¹ dry matter for the sites, while medians for Hg were up to 0.58 mg kg⁻¹ dm, and for Ag up to 0.87 mg kg⁻¹ dm. As a source of protein for animal life, it extracts from soil and transfers to fruiting bodies further to consumers also essential minerals, which occurred (median values for caps per site in mg kg⁻¹ dm) in the range: K (35,000–42,000), Mg (810–1000), Ca (76–100), Co (0.24–0.39), Cu (26–58), Fe (82–240), Mn (12–43), Na (37–110) and Zn (120–220). Elements without a specific biological role were: Al (130–620 mg kg⁻¹ dm), Rb (260–910 mg kg⁻¹ dm), Ba (0.52–2.9 mg kg⁻¹ dm) and Sr (0.27–0.64 mg kg⁻¹ dm). The caps usually showed the elements in greater concentration than stipes, and exception was Na that at average was threefold greater in stipes, and for Al, Ba, Ca, Co and Sr, distribution between both morphological structures was near unity.
... (Amanitaceae, Agaricomycetes), the Fly Agaric, is an ectomycorrhizal mushroom well-known for its distinctive sporocarps, psychotropic effects, and a remarkable role in human cultural history (Michelot and Melendez-Howell, 2003). In Europe, it has been reported for decades from heavy metal-polluted sites (Kalač et al., 1991;Kuehnelt et al., 1998;Cejpková et al., 2016) and it is also known to accumulate high or elevated concentrations of metal(loid) elements like As, Cd, Cu, V, and Zn in its sporocarps (Table 1 and references therein; Drewnowska et al., 2013;Malinovsky and Kashulin, 2016;Lipka and Falandysz, 2017;Falandysz et al., 2020) and ectomycorrhizae (Cejpková et al., 2016). Like in yeasts and molds (Robinson et al., 2021), the detoxification of intracellular heavy metals in Agaricomycetes generally encompasses metal exclusion including reduced uptake and efflux out of the cells (Ruytinx et al., 2013;Sácký et al., 2016), transport of the metal into cellular compartments Ruytinx et al., 2017), and complexation of cytosolic metal with peptides. ...
... It has been recently reported that H. mesophaeum growing there has adapted to the increased concentrations of heavy metals in the soil . The total concentrations of Cd, Zn, and Cu in the Prib sporocarps of A. muscaria were elevated when compared to unpolluted environments and alike the levels reported in other studies on this species at polluted sites (Table 1; Lepšová and Král, 1988;Drewnowska et al., 2013;Lipka and Falandysz, 2017;Falandysz et al. 2020). To attest whether there would be a difference in the sequestration of Cd and Zn in A. muscaria from Prib and the unpolluted site, the intracellular metal was liberated from PAKO89 to 91 and PAKO102 sporocarps, respectively, and the extracts were fractionated by SEC. ...
Article
Amanita muscaria is an ectomycorrhizal mushroom that commonly grows at metal-polluted sites. Sporocarps from the lead smelter-polluted area near Příbram (Central Bohemia, Czech Republic) showed elevated concentrations of Cd and Zn. Size exclusion chromatography of the cell extracts of the sporocarps from both polluted and unpolluted sites indicated that substantial part of intracellular Cd and Zn was sequestered in 6-kDa complexes, presumably with metallothionein(s) (MT). When the cultured mycelial isolates were compared, those from Příbram were more Cd-tolerant and accumulated slightly less Cd and Zn than those from the unpolluted site. The analysis of the available A. muscaria sequence data returned a 67-amino acid (AA) MT encoded by the AmMT1 gene. Weak Cd and Zn responsiveness of AmMT1 in the mycelia suggested its metal homeostasis function in A. muscaria, rather than a major role in detoxification. The AmMT1 belongs to a ubiquitous peptide group in the Agaricomycetes consisting of 60-70-AA MTs containing seven cysteinyl domains and a conserved histidyl, features observed also in a newly predicted, atypical 45-AA RaMT1 of the Zn-accumulator Russula bresadolae in which the C-terminal cysteinyl domains VI and VII are missing. Heterologous expression in metal-sensitive yeast mutants indicated that AmMT1 and RaMT1 encode functional peptides that can protect cells against Cd, Zn, and Cu toxicity. The metal protection phenotype observed in yeasts with mutant variants of AmMT1 and RaMT1 further indicated that the conserved histidyl seems to play a structural, not metal binding role, and the cysteinyls of the C-terminal domains VI and VII are important for Cu binding. The data provide an important insight into the metal handling of site-associated ectomycorrhizal species disturbed by excess metals and the properties of MTs common in Agaricomycetes.
... (Amanitaceae, Agaricomycetes), the Fly Agaric, is an ectomycorrhizal mushroom well-known for its distinctive sporocarps, psychotropic effects, and a remarkable role in human cultural history (Michelot and Melendez-Howell, 2003). In Europe, it has been reported for decades from heavy metal-polluted sites (Kalač et al., 1991;Kuehnelt et al., 1998;Cejpková et al., 2016) and it is also known to accumulate high or elevated concentrations of metal(loid) elements like As, Cd, Cu, V, and Zn in its sporocarps (Table 1 and references therein; Drewnowska et al., 2013;Malinovsky and Kashulin, 2016;Lipka and Falandysz, 2017;Falandysz et al., 2020) and ectomycorrhizae (Cejpková et al., 2016). Like in yeasts and molds (Robinson et al., 2021), the detoxification of intracellular heavy metals in Agaricomycetes generally encompasses metal exclusion including reduced uptake and efflux out of the cells (Ruytinx et al., 2013;Sácký et al., 2016), transport of the metal into cellular compartments Ruytinx et al., 2017), and complexation of cytosolic metal with peptides. ...
... It has been recently reported that H. mesophaeum growing there has adapted to the increased concentrations of heavy metals in the soil . The total concentrations of Cd, Zn, and Cu in the Prib sporocarps of A. muscaria were elevated when compared to unpolluted environments and alike the levels reported in other studies on this species at polluted sites (Table 1; Lepšová and Král, 1988;Drewnowska et al., 2013;Lipka and Falandysz, 2017;Falandysz et al. 2020). To attest whether there would be a difference in the sequestration of Cd and Zn in A. muscaria from Prib and the unpolluted site, the intracellular metal was liberated from PAKO89 to 91 and PAKO102 sporocarps, respectively, and the extracts were fractionated by SEC. ...
... A number of studies focus primarily on Hg determination in mushrooms and the dose assessment from dietary intake (Falandysz et al., 2019a(Falandysz et al., , 2019d. Generally, the wide range of variation in the Hg contents of foraged edible, medicinal and entheogenic mushrooms has been determined and it can often exceeded 1.0 mg kg À1 dry matter (dm) in unpolluted sites; indeed concentrations can reach up to 22 mg kg 1 dm (Alonso et al., 2000;Demirbas, 2001;Tüzen and Soylak, 2005;Melgar et al., 2009;Jarzy nska and Falandysz, 2012;Ma ckiewicz and Falandysz, 2012;Drewnowska et al., 2013;Falandysz, 2014;Falandysz and Drewnowska, 2015;Siri c et al., 2016Siri c et al., , 2017Falandysz et al., 2015aFalandysz et al., , 2015b2016Kojta et al., 2015;Saba et al., 2016aSaba et al., , 2016b2016c;Lipka et al., 2018). This can lead to contamination of prepared food, e.g. ...
... Other species that are efficient at sequestering mercury are Amanita muscaria (Demirbas, 2001;Drewnowska et al., 2013;Falandysz and Treu, 2019); Boletus edulis (Melgar et al., 2009;Siri c et al., 2016); Boletus reticulatus ( Siri c et al., 2016( Siri c et al., , 2017 and some other Boletus species from China (Falandysz et al., 2019a(Falandysz et al., , 2019d; Imleria badia (previous name Xerocomus badius) Mleczek et al., 2015), Macrolepiota procera (Gucia et al., 2012;Siri c et al., 2017); Rugiboletus extremiorientalis (previous name Leccinum extremiorientalis) (Falandysz et al., 2019a(Falandysz et al., , 2019d; Suillus gravillei (Chudzy nski et al., 2009), Xerocomus spp. (Falandysz et al., 2019a). ...
... Fly agaric is widely known as psychoactive due to the hallucinogenic effects of some of its compounds. This mycorrhizal species is considered as specifically efficient for the bioconcentration of vanadium and cadmium in fruiting bodies (Drewnowska et al. 2013;Falandysz et al. 2007a, b;Lepp et al. 1987;Vetter 2005). Amanita muscaria is considered as a toadstool, i.e., an inedible or poisonous mushroom. ...
... It is well known that Rb can be an abundant element in fruiting bodies of A. muscaria and in other mushrooms. For example, the median values of Rb were at 110 mg kg −1 dm in caps and 65 mg kg −1 dm in stipes of A. muscaria fruiting bodies (Drewnowska et al. 2013), and at 500 (21-1600) mg kg −1 dm in whole fruiting bodies of Amanita rubescens Pers. (Tyler 1982). ...
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Fruiting bodies of Amanita muscaria and topsoil beneath from six background areas in northern regions of Poland were investigated for the concentration levels of Ag, Al, Ba, Ca, Cd, Co, Cu, Fe, Hg, K, Mg, Mn, Na, Rb, Sr, and Zn. In addition, the bioconcentration factors (BCF values) were studied for each of these metallic elements. Similar to studies from other basidiomycetes, A. muscaria showed species-specific affinities to some elements, resulting in their bioconcentration in mycelium and fruiting bodies. This mushroom growing in soils with different levels of the geogenic metallic elements (Ag, Al, Ba, Ca, Co, Cu, Fe, Hg, K, Mg, Mn, Na, Rb, Sr, and Zn) showed signs of homeostatic accumulation in fruiting bodies of several of these elements, while Cd appeared to be accumulated at a rate dependent of the concentration level in the soil substrate. This species is an efficient bio-concentrator of K, Mg, Cd, Cu, Hg, Rb, and Zn and hence also contributes to the natural cycling of these metallic elements in forest ecosystems.
... [12] Potassium was noted in A. muscaria (L.) Lam., at 33000 § 6300 mg kg ¡1 dry biomass (db), while almost equally distributed between pileus and stipes in fruiting bodies, with 38000 § 3100 and 36000 § 7300 mg kg ¡1 db. [13,14] A. muscaria collected from different locations contained potassium in caps in the range from 37000 § 7000 to 45000 § 7000 mg kg ¡1 db and in stipes between 2,000 § 5000 and 31000 § 7000 mg kg ¡1 db. [15] The genus Amanita is rich in species that are commonly considered poisonous or highly poisonous, while certain species from this genus are edible (A. ...
... The species was able to bio-concentrate Hg (median values of BCF at 29 for the caps and 21 for the stipes) better from less contaminated soil (median value at 0.028 mg kg ¡1 db). [14] Better bio-concentrators of Hg than A. muscaria from soil polluted at < 0.1 mg kg ¡1 dm are as the species Macrolepiota procera (Scop.) Singer (median value of BCF for caps at > 100 and for stipes at > 50. ...
Article
Concentrations of Al, Ba, Cd, Ca, Co, Cu, Fe, K, Mg, Mn, Hg, Rb, Ag, Na, Sr and Zn were analysed in fruiting bodies of A. muscaria. This mushroom is considered conditionally edible, since parboiling can detoxify its fruiting bodies from the hallucinogens and render it edible. The specific purpose of the research is the little-known phenomenon of the variability of mineral composition of mushrooms for generations harvested in the same forest areas – both in terms of their nutritional value and anthropogenic influences. Fungal materials were digested in nitric acid and analysed by a validated methods using inductively coupled plasma optical emission spectrometer (ICP-OES) and cold – vapor atomic absorption spectroscopy (CV-AAS). A. muscaria collected in the same area over the period of four years showed fluctuations in the concentrations of the essential elements Co, Cu, Fe, K, Mn, Na and Zn (p < 0.05; U Mann-Whitney test), while only Ca and Mg (p > 0.05) levels were similar. In addition, concentrations of Ag, Al, Ba, Cd, Rb and Sr in fruiting bodies fluctuated, while remained at a similar level for Hg. It is important to note that statistically significant variations in levels of several inorganic elements accumulated in A. muscaria would imply a more careful consideration would be required when assessing the nutritional value of mushroom species.
... Metallic elements such as K, Zn, Cu, Mg or Na that are essential to macrofungi are usually bioconcentrated. For example, Amanita muscaria has numerous data on its elemental composition and BCF values, but these do not include REE (Collin-Hansen, 2002;Drewnowska et al. 2013;Falandysz, Kunito, et al., 2007;Falandysz et al. 2020;Falandysz & Treu, 2019;Hanć et al. 2021;Lepp et al. 1987;Lipka et al. 2018;Lipka & Falandysz, 2017;Matoso et al. 1998;Quinche, 1988;Tyler, 1980;Vetter, 2005). This species bioconcentrates essential K (median BCF in caps up to 1700 for labile fraction in soil), Zn (BCF up to 68) and Cu (BCF up to 160), Mg (BCF up to 13), Na (BCF up to 48) Falandysz & Treu, 2019;Lipka et al. 2018), and also V which is essential to the species (Tyler, 1980). ...
... Previous research shows that A. muscaria has high contents of vanadium (means in the range 99e340 mg kg À1 dry biomass, db), zirconium (Zr) (mean 4.7 and total range 0.05e19 mg kg À1 db), Cd (means 11e30 mg kg À1 db), chlorine (5200 mg kg À1 db), bromine (16e23 mg kg À1 db) and fluorine (13 mg kg À1 db) (Cenci et al., 2010;Lepp et al., 1987;Stijve, 1984;Vetter, 2005). Cadmium in fruiting bodies of A. muscaria is usually about 2e3 times greater in caps than stipes and less higher is mercury (Hg), while for V there is no difference (Drewnowska et al., 2013;Falandysz et al., 2007aFalandysz et al., , 2007bFalandysz et al., and 2018Lipka and Falandysz, 2017;Lipka et al., 2018). ...
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This report provides, using a validated analytical method, data on a baseline concentrations and bioconcentration potential of Ag, Al, Ba, Ca, Cd, Co, Cr, Cu, Fe, Hg, K, Mn, Mg, Na, Ni, P, Pb, Rb, Sr and Zn by Parasol Mushroom collected from two spatially related sites - the stands in the Augustowska Forest and the stands in the outskirts of the Elk town in north-eastern part of Poland. The total elements content was determined by ICP-AES and CV-AAS for Hg. Parasol Mushroom efficiently accumulated Ag, Hg, Cu and K in fruiting bodies and moderately of Ca, Cd, Mg, Na, P, Rb, Zn. Tasty caps of Parasol Mushroom from forested areas in north-eastern Poland are rich in essential elements such as Rb, K, P, Cu, Zn, Mg and Na. Nevertheless, a portion of specimens collected can contain in flesh Cd and Pb in concentrations exceeding tolerance limits set in the European Union for mushrooms. Eating these caps can result in an exceeding the safety intake margins of Hg (a slightly), and more of Cd, and especially, if eaten more than once per week. Measured elements concentration in soil samples confirmed that fruiting bodies were collected from unpolluted areas. The data obtained are consistent with the data resulting from the various studies carried out on unpolluted areas. Received data about elements concentration in both soil and flesh of the mushroom were statistically analyzed, including multifunction analysis (e.g. Mann-Whitney U test, CA, PCA).
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This study aimed to provide basic data on the composition of metallic elements, including toxicologically important Cd and Hg, in popular and prized wild King Bolete mushrooms. We investigated the importance of soil substratum as a source of these metals. ICP-OES and CV-AAS were applied to determine the profile of Al, Ba, Ca, Cd, Cu, Fe, Hg, K, Mg, Mn, Na, Sr and Zn in caps and stipes of King Bolete mushroom and in the surface layer of soil (0-10 cm) from the Płocka Dale area of Poland. Hg, Cu, Cd, Zn, Mg and K exhibited bioconcentration factors (BCF) > 1. Specifically, Hg, Cu and Cd (mean BCFs for caps were 110, 19 and 16, respectively) were efficiently bioconcentrated by King Bolete, while other elements were bioexcluded (BCF < 1). Cadmium was present in the caps at mean levels of 5.5 ± 2.4 mg kg(- 1) dry weight (dw) and mercury at levels of 4.9 ± 1.4 mg kg(-1) dw, both occurring at elevated concentrations in those King Bolete mushrooms surveyed.
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Inductively coupled plasma-mass spectrometry (ICP-MS) and inductively coupled plasma-atomic emission spectrometry (ICP-AES) were used to measure many major and trace elements in plant, mushroom and soil samples collected in Japanese forests. Sample preparation and analytical conditions were investigated to set up a simple routine procedure for measuring a large range of elements. Fifty elements were determined for soil samples. For plant and mushroom samples, 25 elements v ere determined.Concentrations of some trace elements such as Zn, Pb, Cd, Bi, Sn and Sb in forest soils tended to be the highest in the surface soil layer, indicating the importance of atmospheric deposition on the total contents in the soils of these elements. In comparison with the element contents of plants, the mushroom contents could be characterized by low Mg, Ca, Sr and Ba amounts. Transfer factors (TFs) were estimated from the ratio of “concentration in plant or mushroom on dry weight basis” to “concentration in the surface soil on dry weight basis”. The TFs of lanthanide elements, Th and U were very low in all plant and mushroom samples. Mushrooms tended to accumulate Cu, Zn, Rb, Cd and Cs. The TFs of Cs for mushrooms were one or two orders higher than those for other plants growing in the same forest. This result was consistent with the high concentrations of radiocesium in mushrooms reported by researchers in many countries.