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He H, Zhang D, Gao J. Bioaccumulation and physiological changes in the fruiting body of Agaricus bisporus (Large) sing in response to cadmium. Sci Rep 2022; 12:20079. [PMID: 36418499 PMCID: PMC9684502 DOI: 10.1038/s41598-022-24561-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 11/17/2022] [Indexed: 11/25/2022] Open
Abstract
The bioremediation of heavy metals contaminated soils with macrofungi is a new and promising approach; hence Agaricus bisporus (Large) sing has potentially shown accumulating ability to Cd contamination. This study focused on the tolerance response by A. bisporus to different contents of Cd in the closed cup and the flat stage of fruiting body development. The contents of Cd, soluble protein, sugar, low molecular weight organic acids (LMWOAs), and antioxidant activity were investigated. The bioaccumulation factor and transfer factor results revealed that Cd accumulated in the cap of A. bisporus more than that in the stipe with the highest content being 18.38 mg kg-1 dry weight at the closed cup stage under 414.28 mg kg-1 Cd stress. High Cd content stress increased soluble protein, proline, and malonaldehyde contents at both stages; while higher peroxidase, catalase, ascorbic acid peroxidase activities, and LMWOAs contents were only recorded at the closed cup stage. On the other hand, Superoxide dismutase activities and soluble sugar content showed a complex trend. Overall, these results have successfully established that A. bisporus could resort to modulating its metabolism to avoid the destructive effects of Cd stress and could successfully accumulate Cd in the soil, which is a promising prospect for the remediation of Cd-contaminated soils.
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Affiliation(s)
- Haiyan He
- grid.464376.40000 0004 1759 6007College of Geography and Resources Science, Neijiang Normal University, Neijiang, People’s Republic of China
| | - Dan Zhang
- grid.9227.e0000000119573309Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, People’s Republic of China
| | - Jianing Gao
- grid.9227.e0000000119573309Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, People’s Republic of China
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2
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Spencer PS, Palmer VS. Direct and Indirect Neurotoxic Potential of Metal/Metalloids in Plants and Fungi Used for Food, Dietary Supplements, and Herbal Medicine. TOXICS 2021; 9:57. [PMID: 33809439 PMCID: PMC7998285 DOI: 10.3390/toxics9030057] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/11/2021] [Accepted: 03/12/2021] [Indexed: 01/09/2023]
Abstract
Plants and mushrooms bioconcentrate metals/metalloids from soil and water such that high levels of potentially neurotoxic elements can occur in cultivated and wild species used for food. While the health effects of excessive exposure to metals/metalloids with neurotoxic potential are well established, overt neurological disease from prolonged ingestion of contaminated botanicals has not been recognized. However, the presence of metal elements may affect levels of botanical neurotoxins in certain plants and mushrooms that are established causes of acute and chronic neurological disease.
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Affiliation(s)
- Peter S. Spencer
- Department of Neurology, Oregon Health & Science University, Portland, OR 97239-3098, USA;
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR 97239-3098, USA
| | - Valerie S. Palmer
- Department of Neurology, Oregon Health & Science University, Portland, OR 97239-3098, USA;
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3
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Yu H, Li Q, Shen X, Zhang L, Liu J, Tan Q, Li Y, Lv B, Shang X. Transcriptomic Analysis of Two Lentinula edodes Genotypes With Different Cadmium Accumulation Ability. Front Microbiol 2020; 11:558104. [PMID: 33042065 PMCID: PMC7526509 DOI: 10.3389/fmicb.2020.558104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 08/24/2020] [Indexed: 01/26/2023] Open
Abstract
Lentinula edodes, also known as Xiang'gu, is commonly eaten in cultures around the world. However, L. edodes is particularly susceptible to enrichment with heavy metals, particularly cadmium (Cd), which is toxic to human health. Understanding the molecular mechanism and mining key genes involved in Cd enrichment will facilitate genetic modification of L. edodes strains. Two L. edodes genotypes, Le4625 (with higher Cd enrichment capability) and Le4606 (with lower Cd enrichment capability) were used in this study. The Cd concentrations in the mycelia of the tested genotypes differed significantly after Cd (0.1 mg/L) exposure; and the Cd content in Le4625 (1.390 ± 0.098 mg/kg) was approximately three-fold that in Le4606 (0.440 ± 0.038 mg/kg) after 7 h of Cd exposure. A total of 24,592 transcripts were assessed by RNA-Seq to explore variance in Cd accumulation. Firstly, differentially expressed genes (DEGs) were analyzed separately following Cd exposure. In comparison with Ld4625, Ld4606 showed a greater number of Cd-induced changes in transcription. In Ld4606, DEGs following Cd exposure were associated with transmembrane transport, glutathione transfer and cytochrome P450, indicating that these genes could be involved in Cd resistance in L. edodes. Next, Le4606 and Le4625 were exposed to Cd, after which DEGs were identified to explore genetic factors affecting Cd accumulation. After Cd exposure, DEGs between Le4606 and Le4625 encoded proteins involved in multiple biological pathways, including transporters on the membrane, cell wall modification, oxidative stress response, translation, degradation, and signaling pathways. Cadmium enrichment in cells may activate MAPK signaling and the anti-oxidative stress response, which can subsequently alter signal transduction and the intracellular oxidation/reduction balance. Furthermore, several possible candidate genes involved in the Cd accumulation were identified, including the major facilitator superfamily genes, heat shock proteins, and laccase 11, a multicopper oxidase. This comparison of the transcriptomes of two L. edodes strains with different capacities for Cd accumulation provides valuable insight into the cultivation of mushrooms with less Cd enrichment and also serves as a reference for the construction of engineered strains for environmental pollution control.
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Affiliation(s)
- Hailong Yu
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, National Engineering Research Center of Edible Fungi, Shanghai, China.,Engineering Research Centre of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, China
| | - Qiaozhen Li
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, National Engineering Research Center of Edible Fungi, Shanghai, China
| | - Xiufen Shen
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, National Engineering Research Center of Edible Fungi, Shanghai, China.,Engineering Research Centre of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, China
| | - Lujun Zhang
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, National Engineering Research Center of Edible Fungi, Shanghai, China
| | - Jianyu Liu
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, National Engineering Research Center of Edible Fungi, Shanghai, China
| | - Qi Tan
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, National Engineering Research Center of Edible Fungi, Shanghai, China
| | - Yu Li
- Engineering Research Centre of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, China
| | - Beibei Lv
- Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Xiaodong Shang
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, National Engineering Research Center of Edible Fungi, Shanghai, China
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Durand A, Maillard F, Foulon J, Chalot M. Interactions between Hg and soil microbes: microbial diversity and mechanisms, with an emphasis on fungal processes. Appl Microbiol Biotechnol 2020; 104:9855-9876. [PMID: 33043392 DOI: 10.1007/s00253-020-10795-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 07/06/2020] [Accepted: 07/21/2020] [Indexed: 11/25/2022]
Abstract
Mercury (Hg) is a highly toxic metal with no known biological function, and it can be highly bioavailable in terrestrial ecosystems. Although fungi are important contributors to a number of soil processes including plant nutrient uptake and decomposition, little is known about the effect of Hg on fungi. Fungi accumulate the largest amount of Hg and are the organisms capable of the highest bioaccumulation of Hg. While referring to detailed mechanisms in bacteria, this mini-review emphasizes the progress made recently on this topic and represents the first step towards a better understanding of the mechanisms underlying Hg tolerance and accumulation in fungal species and hence on the role of fungi within the Hg cycle at Hg-contaminated sites. KEY POINTS: • The fungal communities are more resilient than bacterial communities to Hg exposure. • The exposure to Hg is a threat to microbial soil functions involved in both C and nutrient cycles. • Fungal (hyper)accumulation of Hg may be important for the Hg cycle in terrestrial environments. • Understanding Hg tolerance and accumulation by fungi may lead to new remediation biotechnologies.
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Affiliation(s)
- Alexis Durand
- Laboratoire Chrono-Environnement, UMR 6249, Université de Bourgogne Franche-Comté, Pôle Universitaire du Pays de Montbéliard, 4 place Tharradin, BP 71427, 25211, Montbéliard, France
- Laboratoire Sols et Environnement, UMR 1120, Université de Lorraine - INRAE, 2 avenue de la Forêt de Haye BP 20 163, 54505, Vandœuvre-lès-Nancy, France
| | - François Maillard
- Laboratoire Chrono-Environnement, UMR 6249, Université de Bourgogne Franche-Comté, Pôle Universitaire du Pays de Montbéliard, 4 place Tharradin, BP 71427, 25211, Montbéliard, France
- Department of Plant and Microbial Biology, University of Minnesota, St. Paul, MN, 55108, USA
| | - Julie Foulon
- Laboratoire Chrono-Environnement, UMR 6249, Université de Bourgogne Franche-Comté, Pôle Universitaire du Pays de Montbéliard, 4 place Tharradin, BP 71427, 25211, Montbéliard, France
- Institut des Sciences de la Mer de Rimouski, Université du Québec à Rimouski, 310 Allée des Ursulines, C.P. 3300, Rimouski, QC, G5L 3A1, Canada
| | - Michel Chalot
- Laboratoire Chrono-Environnement, UMR 6249, Université de Bourgogne Franche-Comté, Pôle Universitaire du Pays de Montbéliard, 4 place Tharradin, BP 71427, 25211, Montbéliard, France.
- Faculté des Sciences et Technologies, Université de Lorraine, BP 70239, 54506, Vandoeuvre-les-Nancy, France.
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5
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Sun Y, Cheng M, Dong L, Yang K, Ma Z, Yu S, Yan P, Bai K, Zhu X, Zhang Q. Agaricus blazei extract (FA-2-b-β) induces apoptosis in chronic myeloid leukemia cells. Oncol Lett 2020; 20:270. [PMID: 32989404 PMCID: PMC7517625 DOI: 10.3892/ol.2020.12133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 06/29/2020] [Indexed: 12/13/2022] Open
Abstract
Agaricus blazei Murill (AbM) is a mushroom belonging to the Basidiomycetes family, which is believed to have antitumor and antioxidative activities. Proteoglycans and ergosterol are considered the key compounds of AbM for antitumor properties and so are used in complementary and alternative medicine as an anticancer drug. AbM is used to avoid serious side effects that would inevitably affect patients. Currently, the efficacy of AbM against chronic myeloid leukemia (CML) has not been established. The present study aimed to investigate the antitumor activities of the acidic RNA protein complex, FA-2-b-β, extracted from wild edible AbM. The CML K562 cells or primary CML bone marrow (BM) cells were treated with FA-2-b-β at different concentrations and time points. CML cell line proliferation and apoptosis were determined using the CCK-8 assay or Annexin V/propidium iodide (PI) labeling, RT-qPCR and western blotting was performed to determine the involvement of the Wnt/β-catenin-associated apoptotic pathway. The results of the present study demonstrated that FA-2-b-β has a high anti-proliferative potency and strong pro-apoptotic effects. Thus, daily intake of mushrooms containing FA-2-b-β may be an adequate source as an alternative medicine in the management of CML, and may provide useful information for the development of a novel therapeutic target in this area.
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Affiliation(s)
- Yanqing Sun
- Department of Hematology, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China.,Department of Clinical Medicine, Gansu University of Traditional Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| | - Mingxia Cheng
- Department of Hematology, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China.,Department of Clinical Medicine, Gansu University of Traditional Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| | - Li Dong
- Department of Clinical Medicine, Gansu University of Traditional Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| | - Kehu Yang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,Institute of Clinical Research and Evidence Based Medicine, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Zhiyuan Ma
- Department of Gastroenterology, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Shangrui Yu
- Department of Gastroenterology, The Second Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Peijing Yan
- Institute of Clinical Research and Evidence Based Medicine, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Kuntian Bai
- Department of Clinical Medicine, Gansu University of Traditional Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| | - Xiaolong Zhu
- Department of Hematology, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Qike Zhang
- Department of Hematology, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China
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6
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Dong XB, Liu Y, Feng X, Shi D, Bian YB, Ibrahim SA, Huang W. Purification and Characterization of a Cadmium-Binding Protein from Lentinula edodes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:1261-1268. [PMID: 30623660 DOI: 10.1021/acs.jafc.8b05924] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Many organisms possess the ability to produce metal-binding proteins to absorb cadmium. Metallothioneins, an important family of cysteine-rich metal-binding proteins, have been isolated and well characterized. However, Lentinula edodes may have a different type of cadmium-binding protein that contains fewer cysteine residues. In the present study, we purified a cadmium-binding protein from L. edodes (LECBP) by gel filtration and anion exchange chromatography and then identified LECBP by LC-MS/MS. We found LECBP to be a novel cadmium-binding protein, which contained 220 amino acid residues but no cysteine residue. LECBP had a high binding affinity for Cd(II) with a Kd value of 97.3 μM. The percentages of α-helix, β-sheet, β-turn, and random coil in LECBP were 15.7%, 39.4%, 8.0%, and 37.1%, respectively. In addition, high temperatures and an acidic environment influenced the conformation of LECBP. Our results will thus provide a new perspective to understand the mechanism of cadmium accumulation in L. edodes.
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Affiliation(s)
| | | | - Xi Feng
- Department of Nutrition, Food Science and Packaging , California State University , San Jose , California 95192 , United States
| | - Defang Shi
- Research Institute of Agricultural Products Processing and Nuclear-Agricultural Technology , Hubei Academy of Agricultural Sciences , Wuhan , Hubei 430064 , China
| | | | - Salam A Ibrahim
- Department of Family and Consumer Sciences , North Carolina A&T State University , 171 Carver Hall , Greensboro , North Carolina 27411 , United States
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7
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Pantoja Munoz L, Purchase D, Jones H, Raab A, Urgast D, Feldmann J, Garelick H. The mechanisms of detoxification of As(III), dimethylarsinic acid (DMA) and As(V) in the microalga Chlorella vulgaris. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 175:56-72. [PMID: 26994369 DOI: 10.1016/j.aquatox.2016.02.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 02/24/2016] [Accepted: 02/26/2016] [Indexed: 06/05/2023]
Abstract
The response of Chlorella vulgaris when challenged by As(III), As(V) and dimethylarsinic acid (DMA) was assessed through experiments on adsorption, efflux and speciation of arsenic (reduction, oxidation, methylation and chelation with glutathione/phytochelatin [GSH/PC]). Our study indicates that at high concentrations of phosphate (1.62mM of HPO4(2-)), upon exposure to As(V), cells are able to shift towards methylation of As(V) rather than PC formation. Treatment with As(V) caused a moderate decrease in intracellular pH and a strong increase in the concentration of free thiols (GSH). Passive surface adsorption was found to be negligible for living cells exposed to DMA and As(V). However, adsorption of As(III) was observed to be an active process in C. vulgaris, because it did not show saturation at any of the exposure periods. Chelation of As(III) with GS/PC and to a lesser extent hGS/hPC is a major detoxification mechanism employed by C. vulgaris cells when exposed to As(III). The increase of bound As-GS/PC complexes was found to be strongly related to an increase in concentration of As(III) in media. C. vulgaris cells did not produce any As-GS/PC complex when exposed to As(V). This may indicate that a reduction step is needed for As(V) complexation with GSH/PC. C. vulgaris cells formed DMAS(V)-GS upon exposure to DMA independent of the exposure period. As(III) triggers the formation of arsenic complexes with PC and homophytochelatins (hPC) and their compartmentalisation to vacuoles. A conceptual model was devised to explain the mechanisms involving ABCC1/2 transport. The potential of C. vulgaris to bio-remediate arsenic from water appeared to be highly selective and effective without the potential hazard of reducing As(V) to As(III), which is more toxic to humans.
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Affiliation(s)
- L Pantoja Munoz
- Department of Natural Sciences, School of Science and Technology, Middlesex University, The Burroughs, London NW4 4BT, United Kingdom
| | - D Purchase
- Department of Natural Sciences, School of Science and Technology, Middlesex University, The Burroughs, London NW4 4BT, United Kingdom
| | - H Jones
- Department of Natural Sciences, School of Science and Technology, Middlesex University, The Burroughs, London NW4 4BT, United Kingdom
| | - A Raab
- College of Physical Sciences - Chemistry, Trace Element Speciation Laboratory (TESLA), University of Aberdeen, Meston Walk, Aberdeen AB24 3UE, United Kingdom
| | - D Urgast
- College of Physical Sciences - Chemistry, Trace Element Speciation Laboratory (TESLA), University of Aberdeen, Meston Walk, Aberdeen AB24 3UE, United Kingdom
| | - J Feldmann
- College of Physical Sciences - Chemistry, Trace Element Speciation Laboratory (TESLA), University of Aberdeen, Meston Walk, Aberdeen AB24 3UE, United Kingdom
| | - H Garelick
- Department of Natural Sciences, School of Science and Technology, Middlesex University, The Burroughs, London NW4 4BT, United Kingdom.
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8
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Sácký J, Leonhardt T, Borovička J, Gryndler M, Briksí A, Kotrba P. Intracellular sequestration of zinc, cadmium and silver in Hebeloma mesophaeum and characterization of its metallothionein genes. Fungal Genet Biol 2014; 67:3-14. [PMID: 24674773 DOI: 10.1016/j.fgb.2014.03.003] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 03/12/2014] [Accepted: 03/14/2014] [Indexed: 12/19/2022]
Abstract
Sequestration of intracellular heavy metals in eukaryotes involves compartmentalization and binding with cytosolic, cysteine-rich metallothionein (MT) peptides. We examined the roles of these processes in handling of zinc (Zn), cadmium (Cd) and silver (Ag) in sporocarps and a metal-exposed extraradical mycelium of Hebeloma mesophaeum, the Zn-accumulating ectomycorrhizal (EM) species frequently associated with metal disturbed sites. Size exclusion chromatography revealed that the majority of Zn and Cd in the sporocarps and mycelium was contained in a low molecular mass fraction attributable to compartmentalized metal. The staining of hyphal cells with the Zn-specific Zinquin and Cd-specific Leadmium fluorescent tracers labeled Zn and Cd in small, punctuated vesicles and vacuoles, respectively. By contrast, the sporocarp and mycelium Ag was associated with cysteine-rich, 5-kDa peptides. The peptides of the same size were also identified in minor Zn and Cd complexes from the metal-exposed mycelium. We have further isolated and characterized HmMT1, HmMT2 and HmMT3 genes coding for different 5-kDa MTs of H. mesophaeum collected at a lead smelter site. Heterologous complementation assays in metal-sensitive yeast mutants indicated that HmMTs encode functional, metal-specific peptides: only HmMT1 was able to complement sensitivity to Zn; HmMT1 conferred higher tolerance to Cd and Cu than HmMT2 or HmMT3; and both HmMT2 and HmMT3, but not HmMT1, conferred increased tolerance to Ag. The presence of HmMT1 and HmMT3, but not HmMT2, was also confirmed in a H. mesophaeum isolate from an unpolluted site. Gene expression analysis in the extraradical mycelium of this isolate revealed that the transcription of HmMT1 was preferentially induced in the presence of Zn and Cd, while Ag was a stronger inducer of HmMT3. Altogether, these results improve our understanding of the handling of intracellular Zn, Cd and Ag in Hebeloma and represent the first evidence suggesting involvement of MTs in sequestration of Zn in EM fungi.
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Affiliation(s)
- Jan Sácký
- Department of Biochemistry and Microbiology, Institute of Chemical Technology, Prague, Technická 3, 166 28 Prague, Czech Republic
| | - Tereza Leonhardt
- Department of Biochemistry and Microbiology, Institute of Chemical Technology, Prague, Technická 3, 166 28 Prague, Czech Republic
| | - Jan Borovička
- Nuclear Physics Institute, v.v.i., Academy of Sciences of the Czech Republic, 250 68 Řež 130, Czech Republic
| | - Milan Gryndler
- Institute of Microbiology, v.v.i., Academy of Sciences of the Czech Republic, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - Aleš Briksí
- Department of Biochemistry and Microbiology, Institute of Chemical Technology, Prague, Technická 3, 166 28 Prague, Czech Republic
| | - Pavel Kotrba
- Department of Biochemistry and Microbiology, Institute of Chemical Technology, Prague, Technická 3, 166 28 Prague, Czech Republic.
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Falandysz J, Borovička J. Macro and trace mineral constituents and radionuclides in mushrooms: health benefits and risks. Appl Microbiol Biotechnol 2013; 97:477-501. [PMID: 23179616 PMCID: PMC3546300 DOI: 10.1007/s00253-012-4552-8] [Citation(s) in RCA: 233] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Revised: 10/23/2012] [Accepted: 10/24/2012] [Indexed: 11/29/2022]
Abstract
This article reviews and updates data on macro and trace elements and radionuclides in edible wild-grown and cultivated mushrooms. A huge biodiversity of mushrooms and spread of certain species over different continents makes the study on their multi-element constituents highly challenging. A few edible mushrooms are widely cultivated and efforts are on to employ them (largely Agaricus spp., Pleurotus spp., and Lentinula edodes) in the production of selenium-enriched food (mushrooms) or nutraceuticals (by using mycelia) and less on species used by traditional medicine, e.g., Ganoderma lucidum. There are also attempts to enrich mushrooms with other elements than Se and a good example is enrichment with lithium. Since minerals of nutritional value are common constituents of mushrooms collected from natural habitats, the problem is however their co-occurrence with some hazardous elements including Cd, Pb, Hg, Ag, As, and radionuclides. Discussed is also the problem of erroneous data on mineral compounds determined in mushrooms.
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Affiliation(s)
- Jerzy Falandysz
- Institute of Environmental Sciences & Public Health, University of Gdańsk, Gdańsk, Poland.
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10
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Falandysz J, Borovička J. Macro and trace mineral constituents and radionuclides in mushrooms: health benefits and risks. Appl Microbiol Biotechnol 2013. [PMID: 23179616 DOI: 10.1007/s00253012-4552-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
This article reviews and updates data on macro and trace elements and radionuclides in edible wild-grown and cultivated mushrooms. A huge biodiversity of mushrooms and spread of certain species over different continents makes the study on their multi-element constituents highly challenging. A few edible mushrooms are widely cultivated and efforts are on to employ them (largely Agaricus spp., Pleurotus spp., and Lentinula edodes) in the production of selenium-enriched food (mushrooms) or nutraceuticals (by using mycelia) and less on species used by traditional medicine, e.g., Ganoderma lucidum. There are also attempts to enrich mushrooms with other elements than Se and a good example is enrichment with lithium. Since minerals of nutritional value are common constituents of mushrooms collected from natural habitats, the problem is however their co-occurrence with some hazardous elements including Cd, Pb, Hg, Ag, As, and radionuclides. Discussed is also the problem of erroneous data on mineral compounds determined in mushrooms.
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Affiliation(s)
- Jerzy Falandysz
- Institute of Environmental Sciences & Public Health, University of Gdańsk, Gdańsk, Poland.
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11
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Giannaccini G, Betti L, Palego L, Mascia G, Schmid L, Lanza M, Mela A, Fabbrini L, Biondi L, Lucacchini A. The trace element content of top-soil and wild edible mushroom samples collected in Tuscany, Italy. ENVIRONMENTAL MONITORING AND ASSESSMENT 2012; 184:7579-95. [PMID: 22371035 DOI: 10.1007/s10661-012-2520-5] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Accepted: 01/02/2012] [Indexed: 05/08/2023]
Abstract
The amount of the trace elements As, Ba, Cd, Cr, Cu, Hg, Li, Mn, Ni, Pb, Rb, Se, Sr, and Zn was measured in top soils and edible mushrooms, Boletus edulis, Macrolepiota procera, collected at five distinct green microhabitats inside the Lucca province, North-Central Italy (years 2008-2009). Results showed a top soil element content within the Italian statutory limits. Concerning the amount of mushroom elements, we observed significant species-differences obtaining higher levels of Ni, Rb, and Se in B. edulis or As, Pb, Cu in M. procera. Bioaccumulation factors (BCFs: element in mushroom/element in soil) resulted species-dependent and element-selective: in particular, B. edulis preferentially accumulated Se (BCFs varying from 14 to 153), while M. procera mainly concentrated Cu (BCFs varying from 5 to 15). As well, both species displayed between-site BCF differences. By a multivariate principal component approach, cluster analysis (CA), we could resolve two main clusters of soil element composition, corresponding to the most ecologically divergent sites. Besides, CA showed no cluster relating to element contents of B. edulis at the different collection sites, while a separation in groups was found for M. procera composition with respect to harvesting locations, suggesting uptake systems, in this saprotrophic species, sensitive to microhabitat. Regarding consumer safety, Cd, Hg, Pb levels resulted sometime relevant in present samples, never reaching values from current literature on mushrooms collected in urban-polluted areas. Our findings encourage a deeper assessment of the molecular mechanisms of metal intake by edible mushrooms, encompassing genetic biochemical and geo-ecological variables, with particular awareness to element bioavailability in soils and fungi.
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Affiliation(s)
- Gino Giannaccini
- Department of Psychiatry, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy.
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Osobová M, Urban V, Jedelský PL, Borovička J, Gryndler M, Ruml T, Kotrba P. Three metallothionein isoforms and sequestration of intracellular silver in the hyperaccumulator Amanita strobiliformis. THE NEW PHYTOLOGIST 2011; 190:916-926. [PMID: 21261626 DOI: 10.1111/j.1469-8137.2010.03634.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Metallothioneins (MTs) are cysteine-rich peptides involved in heavy metal tolerance of many eukaryotes. Here, we examined their involvement in intracellular binding of silver (Ag) in the ectomycorrhizal fungus Amanita strobiliformis. The Ag complexes and their peptide ligands were characterized using chromatography and mass spectrometry. The full-length coding sequences obtained from a cDNA library were used for complementation assays in yeast mutant strains. Abundance of respective transcripts in A. strobiliformis was measured by quantitative real-time reverse-transcribed polymerase chain reaction (qRT-PCR). Ag-speciation analyses showed that intracellular Ag was in wild-grown fruit bodies and cultured extraradical mycelia of A. strobiliformis sequestered by metallothioneins. The determined sequence of the peptide facilitated isolation of three cDNA clones, AsMT1a, AsMT1b and AsMT1c. These encode isomorphic MTs consisting of 34 amino acid residues and sharing 82% identity. In mycelia the expression of AsMT1s is induced by Ag. All AsMT1s expressed in yeasts complemented hypersensitivity of mutants to cadmium (Cd) and copper (Cu) and formed Ag complexes. Only the Ag-AsMT1a complex was detected in the A. strobiliformis fruit body in which AsMT1a was the prevailing transcript. The present study identified the existence of metallothionein isoforms in ectomycorrhizal fungi. We demonstrated that intracellular sequestration of Ag in fruit bodies and mycelia of hyperaccumulating A. strobiliformis is dominated by metallothioneins.
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Affiliation(s)
- Michaela Osobová
- Department of Biochemistry and Microbiology, Institute of Chemical Technology, Prague, Technická 3, Prague, 166 28 Czech Republic
| | - Václav Urban
- Department of Biochemistry and Microbiology, Institute of Chemical Technology, Prague, Technická 3, Prague, 166 28 Czech Republic
| | - Petr L Jedelský
- Department of Parasitology, Faculty of Science, Charles University in Prague, Viničná 7, Prague, 128 44 Czech Republic
| | - Jan Borovička
- Nuclear Physics Institute, v.v.i, Academy of Sciences of the Czech Republic, 250 68 Řež, Czech Republic
| | - Milan Gryndler
- Institute of Microbiology, v.v.i., Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ-142 20 Prague 4, Czech Republic
| | - Tomas Ruml
- Department of Biochemistry and Microbiology, Institute of Chemical Technology, Prague, Technická 3, Prague, 166 28 Czech Republic
| | - Pavel Kotrba
- Department of Biochemistry and Microbiology, Institute of Chemical Technology, Prague, Technická 3, Prague, 166 28 Czech Republic
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Kalač P. Trace element contents in European species of wild growing edible mushrooms: A review for the period 2000–2009. Food Chem 2010. [DOI: 10.1016/j.foodchem.2010.02.045] [Citation(s) in RCA: 192] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Effect of Heavy Metals on Mycelial Growth of Color Mutants at Pleurotus ostreatus. THE KOREAN JOURNAL OF MYCOLOGY 2008. [DOI: 10.4489/kjm.2008.36.2.172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Chudzyński K, Falandysz J. Multivariate analysis of elements content of Larch Bolete (Suillus grevillei) mushroom. CHEMOSPHERE 2008; 73:1230-9. [PMID: 18783817 DOI: 10.1016/j.chemosphere.2008.07.055] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2008] [Revised: 07/07/2008] [Accepted: 07/18/2008] [Indexed: 05/15/2023]
Abstract
Larch Bolete (Suillus grevillei) mushrooms collected at spatially distant sites in Poland showed on relative abundance of K, P, Mg, Rb, Al, Ca, Fe (at mg/g dw), Ag, Ba, Cd, Cu, Mn, Na and Zn (at microg/g dw) and less of Co, Cr, Ni, Pb and Sr (<1 microg/g dw). Amongst these elements Rb and K were highly bioconcentrated by Larch Bolete (BCF around 1000 and 300 for the caps), and weaker were Cu, Mg, Na, P and Zn (BCF between 4.1+/-2.5 and 62+/-21). Ag and Cd were bioconcentrated mainly in caps with BCF value of 25+/-16 and 13+/-10. Al, Ba, Ca, Co, Cr, Fe, Mn, Ni, Pb and Sr were excluded (BCF<1) by this species. Intake of meal prepared of 300 g of fresh fruiting bodies of Larch Bolete picked-up at the Western Beskid or Pogórze Wielickie sites in the south of Poland will result in exceeding of oral reference dose set for cadmium. In the case of silver, copper or zinc content a meal of 300 g of fresh or 30 g dried Larch Bolete will not result in exceeding reference doses for these elements. Extent of dose that customer would be exposed after eating of three 300 g fresh the Larch Bolete meals during a week will led to intake of lead and zinc within margin of 0.9-5.1% and 9-16% of PTWI for these elements, respectively. In the case of cadmium and specimens from the Western Beskid or Pogórze Wielickie sites in the south of Poland intake will slightly (around 10%) exceed PTWI value, and for other sites will not exceed (between 2% and 26% of PTWI).
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Affiliation(s)
- Krzysztof Chudzyński
- University of Gdańsk, Department of Environmental Chemistry, Ecotoxicology and Food Toxicology, 18 Sobieskiego Str., PL 80 - 952 Gdańsk, Poland.
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