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Ganji F, Mojerlou S, Safaie N. Evaluation of copper-tolerant fungi isolated from Sarcheshmeh copper mine of Iran. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:110715-110724. [PMID: 37792187 DOI: 10.1007/s11356-023-30135-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 09/25/2023] [Indexed: 10/05/2023]
Abstract
Mycoremediation, a subset of bioremediation, is considered an advanced method to eliminate environmental contaminations. To identify tolerant fungi to copper contamination and study the related gene expression, sampling was carried out from the soil of "Sarcheshmeh Copper Mine," which is one of the biggest open-cast copper mines in the world. A total of 71 fungal isolates were obtained and purified. Afterward, the inhibitory effect of different concentrations (1000, 1500, 3500, 4000, and 5500 ppm) of copper sulfate on mycelial growth was evaluated. Results indicated that only 5500 ppm of copper sulfate inhibited fungal growth compared to the control. Based on the bioassay experiments, three isolates including S3-1, S3-21, and S1-7, which were able to grow on solid and broth medium containing 5500 ppm of copper sulfate at different pH conditions, were selected and identified using molecular approaches. Also, laccase and metallothionein gene expression has been assessed in these isolates. According to the molecular identification using ITS1-5.8S- ITS2 region, isolates S3-1 and S1-7 were identified as Pleurotus eryngii, and isolate S3-21 belonged to the genus Sarocladium. In addition, P. eryngii showed laccase gene expression reduction after 8 days of exposure to copper sulfate. While in the genus Sarocladium, it increased (almost 2 times) from 6 to 8 days. Besides, metallothionein gene expression has increased from 6 to 8 days of copper sulfate treatment compared to the control which reveals its role in copper tolerance of all studied isolates. In this study, Pleurotus eryngii and Sarocladium sp. are introduced as heavy metal tolerant fungi and the related gene expression to copper tolerance was studied for the first time in Iran.
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Affiliation(s)
- Ferdos Ganji
- Department of Biotechnology, Faculty of Agriculture, Shahrood University of Technology, Shahrood, Iran
| | - Shideh Mojerlou
- Department of Horticulture and Plant Protection, Faculty of Agriculture, Shahrood University of Technology, Shahrood, P. O. Box: 3619995161, Iran.
| | - Naser Safaie
- Department of Plant Pathology, Faculty of Agriculture, Tarbiat Modares University of Tehran, Tehran, Iran
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2
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Ma Y, Ankit, Tiwari J, Bauddh K. Plant-Mycorrhizal Fungi Interactions in Phytoremediation of Geogenic Contaminated Soils. Front Microbiol 2022; 13:843415. [PMID: 35283821 PMCID: PMC8908265 DOI: 10.3389/fmicb.2022.843415] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 01/25/2022] [Indexed: 11/26/2022] Open
Abstract
Soil contamination by geogenic contaminants (GCs) represents an imperative environmental problem. Various soil remediation methods have been successfully employed to ameliorate the health risks associated with GCs. Phytoremediation is considered as an eco-friendly and economical approach to revegetate GC-contaminated soils. However, it is a very slow process, as plants take a considerable amount of time to gain biomass. Also, the process is limited only to the depth and surface area of the root. Inoculation of arbuscular mycorrhizal fungi (AMF) with remediating plants has been found to accelerate the phytoremediation process by enhancing plant biomass and their metal accumulation potential while improving the soil physicochemical and biological characteristics. Progress in the field application is hindered by a lack of understanding of complex interactions between host plant and AMF that contribute to metal detoxification/(im)mobilization/accumulation/translocation. Thus, this review is an attempt to reveal the underlying mechanisms of plant-AMF interactions in phytoremediation.
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Affiliation(s)
- Ying Ma
- College of Resources and Environment, Southwest University, Chongqing, China
| | - Ankit
- Department of Environmental Sciences, Central University of Jharkhand, Ranchi, India
| | - Jaya Tiwari
- Department of Community Medicine and School of Public Health, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Kuldeep Bauddh
- Department of Environmental Sciences, Central University of Jharkhand, Ranchi, India
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3
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Chatterjee S, Kumari S, Rath S, Priyadarshanee M, Das S. Diversity, structure and regulation of microbial metallothionein: metal resistance and possible applications in sequestration of toxic metals. Metallomics 2020; 12:1637-1655. [PMID: 32996528 DOI: 10.1039/d0mt00140f] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Metallothioneins (MTs) are a group of cysteine-rich, universal, low molecular weight proteins distributed widely in almost all major taxonomic groups ranging from tiny microbes to highly organized vertebrates. The primary function of this protein is storage, transportation and binding of metals, which enable microorganisms to detoxify heavy metals. In the microbial world, these peptides were first identified in a cyanobacterium Synechococcus as the SmtA protein which exhibits high affinity towards rising level of zinc and cadmium to preserve metal homeostasis in a cell. In yeast, MTs aid in reserving copper and confer protection against copper toxicity by chelating excess copper ions in a cell. Two MTs, CUP1 and Crs5, originating from Saccharomyces cerevisiae predominantly bind to copper though are capable of binding with zinc and cadmium ions. MT superfamily 7 is found in ciliated protozoa which show high affinity towards copper and cadmium. Several tools and techniques, such as western blot, capillary electrophoresis, inductively coupled plasma, atomic emission spectroscopy and high performance liquid chromatography, have been extensively utilized for the detection and quantification of microbial MTs which are utilized for the efficient remediation and sequestration of heavy metals from a contaminated environment.
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Affiliation(s)
- Shreosi Chatterjee
- Laboratory of Environmental Microbiology and Ecology (LEnME), Department of Life Science, National Institute of Technology, Rourkela 769 008, Odisha, India.
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Lorenzo-Gutiérrez D, Gómez-Gil L, Guarro J, Roncero MIG, Fernández-Bravo A, Capilla J, López-Fernández L. Role of the Fusarium oxysporum metallothionein Mt1 in resistance to metal toxicity and virulence. Metallomics 2019; 11:1230-1240. [DOI: 10.1039/c9mt00081j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Soil organisms exhibit high tolerance to heavy metals, probably acquired through evolutionary adaptation to contaminated environments.
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Affiliation(s)
- Damaris Lorenzo-Gutiérrez
- Unitat de Microbiologia
- Facultat de Medicina i Ciències de la Salut and Institut d'Investigació Sanitària Pere Virgili (IISPV)
- Universitat Rovira i Virgili
- Reus
- Spain
| | - Lucía Gómez-Gil
- Departamento de Genetica
- Facultad de Ciencias and Campus de Excelencia Internacional Agroalimentario ceiA3
- Universidad de Cordoba
- 14071 Cordoba
- Spain
| | - Josep Guarro
- Unitat de Microbiologia
- Facultat de Medicina i Ciències de la Salut and Institut d'Investigació Sanitària Pere Virgili (IISPV)
- Universitat Rovira i Virgili
- Reus
- Spain
| | - M. Isabel G. Roncero
- Departamento de Genetica
- Facultad de Ciencias and Campus de Excelencia Internacional Agroalimentario ceiA3
- Universidad de Cordoba
- 14071 Cordoba
- Spain
| | - Ana Fernández-Bravo
- Unitat de Microbiologia
- Facultat de Medicina i Ciències de la Salut and Institut d'Investigació Sanitària Pere Virgili (IISPV)
- Universitat Rovira i Virgili
- Reus
- Spain
| | - Javier Capilla
- Unitat de Microbiologia
- Facultat de Medicina i Ciències de la Salut and Institut d'Investigació Sanitària Pere Virgili (IISPV)
- Universitat Rovira i Virgili
- Reus
- Spain
| | - Loida López-Fernández
- Unitat de Microbiologia
- Facultat de Medicina i Ciències de la Salut and Institut d'Investigació Sanitària Pere Virgili (IISPV)
- Universitat Rovira i Virgili
- Reus
- Spain
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5
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Huang X, An G, Zhu S, Wang L, Ma F. Can Cd translocation in Oryza sativa L. be attenuated by arbuscular mycorrhizal fungi in the presence of EDTA? ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:9380-9390. [PMID: 29349740 DOI: 10.1007/s11356-017-1157-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 12/26/2017] [Indexed: 06/07/2023]
Abstract
Arbuscular mycorrhizal (AM) fungi play an important role in plant tolerance of heavy metal contamination. In this study, a pot experiment was conducted to illustrate the effects of the two AM fungi species Funneliformis mosseae (Fm) and Rhizophagus irregularis (Ri) on plant growth of Oryza sativa L. either with or without ethylenediamine tetraacetate (EDTA) addition and during exposure to five Cd concentrations (in the range of 0-5 mg kg-1). The results showed that Fm inoculation achieved greater mycorrhizal colonization and mycorrhizal dependency indexes than Ri inoculation. In addition, the effects of AM fungi on Cd biosorption and translocation in rice were also investigated in the presence of EDTA. Despite cooperative adsorption, the Freundlich isotherm could describe the biosorption effects of Cd on rice roots regardless of AM fungi inoculation or EDTA addition. Cd concentrations in mycorrhizal roots increased but decreased in mycorrhizal shoots in contrast to the control treatment. Although EDTA addition negatively inhibited the uptake of Cd to mycorrhizal shoots, lower translocation factor (TF) and bioconcentration factor (BCF) were still observed in treatments with EDTA compared to control treatment. Our findings suggest that Ri and Fm inoculation enhanced Cd immobilization in the roots, thus preventing Cd entry into the food chain during exposure to low and high Cd stress, respectively.
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Affiliation(s)
- Xiaochen Huang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China
| | - Guangnan An
- Appraisal Center for Environment & Engineering Ministry of Environmental Protection, Beijing, 100020, People's Republic of China
| | - Shishu Zhu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China
| | - Li Wang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China.
| | - Fang Ma
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China.
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Zhang H, Lv S, Xu H, Hou D, Li Y, Wang F. H₂O₂ Is Involved in the Metallothionein-Mediated Rice Tolerance to Copper and Cadmium Toxicity. Int J Mol Sci 2017; 18:ijms18102083. [PMID: 28974021 PMCID: PMC5666765 DOI: 10.3390/ijms18102083] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 09/27/2017] [Accepted: 09/27/2017] [Indexed: 11/16/2022] Open
Abstract
Cadmium (Cd) and excess copper (Cu) are toxic to plants, causing a wide range of deleterious effects including the formation of reactive oxygen species. Metallothioneins (MTs) may protect plant cells from heavy metal toxicity by chelating heavy metals via cysteine thiol groups. They may also function as antioxidants. The study investigated the relationship of H₂O₂ production and ricMT expression in rice radicles and rice suspension cells under Cu or Cd stress. The results showed that H₂O₂ production in the rice radicles increased before Cu-induced ricMT expression, and after Cd-induced ricMT expression. Rice suspension cells of sense- and antisense-ricMT transgenic lines were obtained by an Agrobacterium-mediated transformation. Overexpression of ricMT significantly decreased the death rate of rice cells, which was accompanied by blocked H₂O₂ accumulation in rice suspension cells subject to Cu and Cd stress. Our findings confirm that H₂O₂ is involved in the MT-mediated tolerance of Cu and Cd toxicity in rice.
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Affiliation(s)
- Hongxiao Zhang
- College of Agriculture, Henan University of Science and Technology, Luoyang 471023, China.
| | - Shufang Lv
- College of Agriculture, Henan University of Science and Technology, Luoyang 471023, China.
| | - Huawei Xu
- College of Agriculture, Henan University of Science and Technology, Luoyang 471023, China.
| | - Dianyun Hou
- College of Agriculture, Henan University of Science and Technology, Luoyang 471023, China.
| | - Youjun Li
- College of Agriculture, Henan University of Science and Technology, Luoyang 471023, China.
| | - Fayuan Wang
- College of Agriculture, Henan University of Science and Technology, Luoyang 471023, China.
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
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7
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Fomina M, Bowen AD, Charnock JM, Podgorsky VS, Gadd GM. Biogeochemical spatio-temporal transformation of copper in A
spergillus niger
colonies grown on malachite with different inorganic nitrogen sources. Environ Microbiol 2017; 19:1310-1321. [DOI: 10.1111/1462-2920.13664] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 12/13/2016] [Accepted: 01/02/2017] [Indexed: 11/28/2022]
Affiliation(s)
- Marina Fomina
- Geomicrobiology Group, School of Life Sciences; University of Dundee; Dundee DD1 5EH UK
- Institute of Microbiology and Virology; NASU; Zabolotnogo st. 154 Kiev 03680 Ukraine
| | - Andrew D. Bowen
- Geomicrobiology Group, School of Life Sciences; University of Dundee; Dundee DD1 5EH UK
| | - John M. Charnock
- School of Earth, Atmospheric and Environmental Sciences; University of Manchester; Williamson Building, Oxford Road Manchester M13 9PL UK
| | - Valentin S. Podgorsky
- Institute of Microbiology and Virology; NASU; Zabolotnogo st. 154 Kiev 03680 Ukraine
| | - Geoffrey M. Gadd
- Geomicrobiology Group, School of Life Sciences; University of Dundee; Dundee DD1 5EH UK
- Laboratory of Environmental Pollution and Bioremediation; Xinjiang Institute of Ecology and Geography', Chinese Academy of Sciences; Urumqi 830011 China
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8
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Chen F, Luo Z, Chen GH, Shi X, Liu X, Song YF, Pan YX. Effects of waterborne Cu exposure on intestinal copper transport and lipid metabolism of Synechogobius hasta. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 178:171-181. [PMID: 27509383 DOI: 10.1016/j.aquatox.2016.08.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 08/01/2016] [Accepted: 08/03/2016] [Indexed: 06/06/2023]
Abstract
The present study was conducted to explore the effects of waterborne Cu exposure on intestinal Cu transport and lipid metabolism of Synechogobius hasta. S. hasta were exposed to 0, 0.4721 and 0.9442μM Cu, respectively. Sampling occurred on days 0, 21 and 42, respectively. Growth performance, intestinal lipid deposition, Cu content, and activities and mRNA expression of enzymes and genes involved in Cu transport and lipid metabolism were analyzed. Cu exposure decreased WG and SGR on days 21 and 42. Cu exposure increased intestinal Cu and lipid contents. Increased Cu accumulation was attributable to increased enzymatic activities (Cu-ATPase and Cu, Zn-SOD) and genes' (CTR1, CTR2, DMT1, ATP7a, ATP7b, MT1 and MT2) expression involved in Cu transport. Waterborne Cu exposure also increased activities of lipogenic enzymes (6PGD and ICDH on both days 21 and 42, ME on day 42), up-regulated mRNA levels of lipogenic genes (G6PD, 6PGD, ME, ICDH, FAS and ACCa), lipolytic genes (ACCb, CPT I and HSLa) and genes involved in intestinal fatty acid uptake (IFABP and FATP4) on both days 21 and 42. The up-regulation of lipolysis may result from the increased metabolic expenditure for detoxification and maintenance of the normal body functions in a response to Cu exposure. Meantime, Cu exposure increased lipogenesis and fatty acid uptake, leading to net lipid accumulation in the intestine despite increased lipolysis. To our knowledge, this is the first report involved in intestinal lipid metabolism in combination with intestinal Cu absorption following waterborne Cu exposure, which provides new insights and evidence into Cu toxicity in fish.
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Affiliation(s)
- Feng Chen
- Laboratory of Nutrition and Feed Formulation for Aquatic Economic Animals, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhi Luo
- Laboratory of Nutrition and Feed Formulation for Aquatic Economic Animals, Fishery College, Huazhong Agricultural University, Wuhan 430070, China; Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, Changde 415000, China; Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, China.
| | - Guang-Hui Chen
- Laboratory of Nutrition and Feed Formulation for Aquatic Economic Animals, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Xi Shi
- Laboratory of Nutrition and Feed Formulation for Aquatic Economic Animals, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Xu Liu
- Postgraduate Research Base, Panjin Guanghe Fishery Co. Ltd., Panjin 124200, China
| | - Yu-Feng Song
- Laboratory of Nutrition and Feed Formulation for Aquatic Economic Animals, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Ya-Xiong Pan
- Laboratory of Nutrition and Feed Formulation for Aquatic Economic Animals, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
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9
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Liu J, Shi X, Qian M, Zheng L, Lian C, Xia Y, Shen Z. Copper-induced hydrogen peroxide upregulation of a metallothionein gene, OsMT2c, from Oryza sativa L. confers copper tolerance in Arabidopsis thaliana. JOURNAL OF HAZARDOUS MATERIALS 2015; 294:99-108. [PMID: 25867584 DOI: 10.1016/j.jhazmat.2015.03.060] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Revised: 03/20/2015] [Accepted: 03/27/2015] [Indexed: 05/29/2023]
Abstract
Metallothioneins (MTs) are low-molecular-weight, cysteine-rich metal-binding proteins found in numerous genera and species, but their functions in abiotic stress tolerance remain unclear. Here, a MT gene from Oryza sativa, OsMT2c, was isolated and characterized, encoding a type 2 MT, and observed expression in the roots, leaf sheathes, and leaves, but only weak expression in seeds. OsMT2c was upregulated by copper (Cu) and hydrogen peroxide (H2O2) treatments. Excessive Cu elicited a rapid and sustained production and release of H2O2 in rice, and exogenous H2O2 scavengers N,N'-dimethylthiourea (DMTU) and ascorbic acid (Asc) decreased H2O2 production and OsMT2c expression. Furthermore, the expression of OsMT2c increased in the osapx2 mutant in which the H2O2 levels were higher than in wild-type (WT) plants. These results showed that Cu increased MT2c expression through the production and accumulation of Cu-induced H2O2 in O. sativa. In addition, the transgenic OsMT2c-overexpressing Arabidopsis displayed improved tolerance to Cu stress and exhibited increased reactive oxygen species (ROS) scavenging ability compared to WT and empty-vector (Ev) seedlings.
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Affiliation(s)
- Jia Liu
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Xiaoting Shi
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Meng Qian
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Luqing Zheng
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Chunlan Lian
- Asian Natural Environmental Science Center, The University of Tokyo, Tokyo 188-0002, Japan
| | - Yan Xia
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China.
| | - Zhenguo Shen
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China.
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Cabral L, Soares CRFS, Giachini AJ, Siqueira JO. Arbuscular mycorrhizal fungi in phytoremediation of contaminated areas by trace elements: mechanisms and major benefits of their applications. World J Microbiol Biotechnol 2015; 31:1655-64. [PMID: 26250548 DOI: 10.1007/s11274-015-1918-y] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Accepted: 07/30/2015] [Indexed: 02/07/2023]
Abstract
In recent decades, the concentration of trace elements has increased in soil and water, mainly by industrialization and urbanization. Recovery of contaminated areas is generally complex. In that respect, microorganisms can be of vital importance by making significant contributions towards the establishment of plants and the stabilization of impacted areas. Among the available strategies for environmental recovery, bioremediation and phytoremediation outstand. Arbuscular mycorrhizal fungi (AMF) are considered the most important type of mycorrhizae for phytoremediation. AMF have broad occurrence in contaminated soils, and evidences suggest they improve plant tolerance to excess of certain trace elements. In this review, the use of AMF in phytoremediation and mechanisms involved in their trace element tolerance are discussed. Additionally, we present some techniques used to study the retention of trace elements by AMF, as well as a summary of studies showing major benefits of AMF for phytoremediation.
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Affiliation(s)
- Lucélia Cabral
- Research Center for Chemistry, Biology and Agriculture - CPQBA, University of Campinas - UNICAMP, Mailbox: 6171, Campinas, SP, 13081-970, Brazil.
| | - Claúdio Roberto Fonsêca Sousa Soares
- Department of Microbiology, Immunology and Parasitology (CCB/MIP), Center of Biological Science, Federal University of Santa Catarina, Trindade, Florianópolis, SC, 88040-900, Brazil
| | - Admir José Giachini
- Department of Microbiology, Immunology and Parasitology (CCB/MIP), Center of Biological Science, Federal University of Santa Catarina, Trindade, Florianópolis, SC, 88040-900, Brazil
| | - José Oswaldo Siqueira
- Vale Institute of Technology Sustainable Development, Rua Boaventura da Silva, 955 (Nazaré), Belém, PA, 66055-090, Brazil
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Gao C, Zhu L, Zhu F, Sun J, Zhu Z. Effects of different sources of copper on Ctr1, ATP7A, ATP7B, MT and DMT1 protein and gene expression in Caco-2 cells. J Trace Elem Med Biol 2014; 28:344-50. [PMID: 24815816 DOI: 10.1016/j.jtemb.2014.04.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Revised: 03/17/2014] [Accepted: 04/14/2014] [Indexed: 01/04/2023]
Abstract
Copper sulfate (CuSO4), micron copper oxide (micron CuO) and nano copper oxide (nano CuO) at different concentrations were, respectively, added to culture media containing Caco-2 cells and their effects on Ctr1, ATP7A/7B, MT and DMT1 gene expression and protein expression were investigated and compared. The results showed that nano CuO promoted mRNA expression of Ctr1 in Caco-2 cells, and the difference was significant compared with micron CuO and CuSO4. Nano CuO was more effective in promoting the expression of Ctr1 protein than CuSO4 and micron CuO at the same concentration. Nano CuO at a concentration of 62.5 μM increased the mRNA expression levels of ATP7A and ATP7B, and the difference was significant compared with CuSO4. The addition of CuSO4 and nano CuO to the culture media promoted the expression of ATP7B proteins. CuSO4 at a concentration of 125 μM increased the mRNA expression level of MT in Caco-2 cells, and the difference was significant compared with nano CuO and micron CuO. Nano CuO at a concentration of 62.5 μM inhibited the mRNA expression of DMT1, and the difference was significant compared with CuSO4 and micron CuO. Thus, the effects of CuSO4, micron CuO and nano CuO on the expression of copper transport proteins and the genes encoding these proteins differed considerably. Nano CuO has a different uptake and transport mechanism in Caco-2 cells to those of CuSO4 and micron CuO.
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Affiliation(s)
- Chen Gao
- College of Veterinary Medicine, Jilin University, Changchun 130062, China; College of Animal Science and Veterinary Medicine, Qingdao Agricultural University, Qingdao 266109, China; College of Agriculture, Dezhou University, Dezhou 253023, China
| | - Lianqin Zhu
- College of Veterinary Medicine, Jilin University, Changchun 130062, China; College of Animal Science and Veterinary Medicine, Qingdao Agricultural University, Qingdao 266109, China.
| | - Fenghua Zhu
- College of Animal Science and Veterinary Medicine, Qingdao Agricultural University, Qingdao 266109, China
| | - Jinquan Sun
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Zuxian Zhu
- College of Animal Science and Veterinary Medicine, Qingdao Agricultural University, Qingdao 266109, China
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Fomina MO. VARIABILITY OF COORDINATION COMPLEXES OF COPPER ACCUMULATED WITHIN FUNGAL COLONY IN THE PRESENCE OF COPPER-CONTAINING MINERALS. BIOTECHNOLOGIA ACTA 2014. [DOI: 10.15407/biotech7.02.063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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13
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Krauss GJ, Solé M, Krauss G, Schlosser D, Wesenberg D, Bärlocher F. Fungi in freshwaters: ecology, physiology and biochemical potential. FEMS Microbiol Rev 2011; 35:620-51. [DOI: 10.1111/j.1574-6976.2011.00266.x] [Citation(s) in RCA: 204] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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14
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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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15
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Miransari M. Hyperaccumulators, arbuscular mycorrhizal fungi and stress of heavy metals. Biotechnol Adv 2011; 29:645-53. [PMID: 21557996 DOI: 10.1016/j.biotechadv.2011.04.006] [Citation(s) in RCA: 148] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Revised: 04/02/2011] [Accepted: 04/21/2011] [Indexed: 10/18/2022]
Abstract
Use of plants, with hyperaccumulating ability or in association with soil microbes including the symbiotic fungi, arbuscular mycorrhiza (AM), are among the most common biological methods of treating heavy metals in soil. Both hyperaccumulating plants and AM fungi have some unique abilities, which make them suitable to treat heavy metals. Hyperaccumulator plants have some genes, being expressed at the time of heavy metal pollution, and can accordingly localize high concentration of heavy metals to their tissues, without showing the toxicity symptoms. A key solution to the issue of heavy metal pollution may be the proper integration of hyperaccumulator plants and AM fungi. The interactions between the soil microbes and the host plant can also be important for the treatment of soils polluted with heavy metals.
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Affiliation(s)
- Mohammad Miransari
- Department of Soil Science, College of Agricultural Sciences, Shahed University, Tehran, Qom Highway, Tehran 18151/159, Iran.
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16
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EGG MARGIT, HÖCKNER MARTINA, BRANDSTÄTTER ANITA, SCHULER DIETMAR, DALLINGER REINHARD. Structural and bioinformatic analysis of the Roman snail Cd-Metallothionein gene uncovers molecular adaptation towards plasticity in coping with multifarious environmental stress. Mol Ecol 2009; 18:2426-43. [DOI: 10.1111/j.1365-294x.2009.04191.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Ramesh G, Podila GK, Gay G, Marmeisse R, Reddy MS. Different patterns of regulation for the copper and cadmium metallothioneins of the ectomycorrhizal fungus Hebeloma cylindrosporum. Appl Environ Microbiol 2009; 75:2266-74. [PMID: 19233951 PMCID: PMC2675211 DOI: 10.1128/aem.02142-08] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2008] [Accepted: 02/08/2009] [Indexed: 11/20/2022] Open
Abstract
Metallothioneins (MTs) are small cysteine-rich peptides involved in metal homeostasis and detoxification. We have characterized two MT genes, HcMT1 and HcMT2, from the ectomycorrhizal fungus Hebeloma cylindrosporum in this study. Expression of HcMT1 and HcMT2 in H. cylindrosporum under metal stress conditions was studied by competitive reverse transcription-PCR analysis. The full-length cDNAs were used to perform functional complementation in mutant strains of Saccharomyces cerevisiae. As revealed by heterologous complementation assays in yeast, HcMT1 and HcMT2 each encode a functional polypeptide capable of conferring increased tolerance against Cd and Cu, respectively. The expression levels of HcMT1 were observed to be at their maximum at 24 h, and they increased as a function of Cu concentration. HcMT2 was also induced by Cu, but the expression levels were lower than those for HcMT1. The mRNA accumulation of HcMT1 was not influenced by Cd, whereas Cd induced the transcription of HcMT2. Zn, Pb, and Ni did not affect the transcription of HcMT1 or of HcMT2. Southern blot analysis revealed that both of these genes are present as a single copy in H. cylindrosporum. While the promoters of both HcMT1 and HcMT2 contained the standard stress response elements implicated in the metal response, the numbers and varieties of potential regulatory elements were different in these promoters. These results show that ectomycorrhizal fungi encode different MTs and that each of them has a particular pattern of expression, suggesting that they play critical specific roles in improving the survival and growth of ectomycorrhizal trees in ecosystems contaminated by heavy metals.
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Affiliation(s)
- G Ramesh
- Thapar University, Department of Biotechnology, Bhadson Road, Patiala 147 004, India
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18
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Scheckhuber CQ, Grief J, Boilan E, Luce K, Debacq-Chainiaux F, Rittmeyer C, Gredilla R, Kolbesen BO, Toussaint O, Osiewacz HD. Age-related cellular copper dynamics in the fungal ageing model Podospora anserina and in ageing human fibroblasts. PLoS One 2009; 4:e4919. [PMID: 19305496 PMCID: PMC2654708 DOI: 10.1371/journal.pone.0004919] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2009] [Accepted: 02/11/2009] [Indexed: 12/14/2022] Open
Abstract
In previous investigations an impact of cellular copper homeostasis on ageing of the ascomycete Podospora anserina has been demonstrated. Here we provide new data indicating that mitochondria play a major role in this process. Determination of copper in the cytosolic fraction using total reflection X-ray fluorescence spectroscopy analysis and eGfp reporter gene studies indicate an age-related increase of cytosolic copper levels. We show that components of the mitochondrial matrix (i.e. eGFP targeted to mitochondria) become released from the organelle during ageing. Decreasing the accessibility of mitochondrial copper in P. anserina via targeting a copper metallothionein to the mitochondrial matrix was found to result in a switch from a copper-dependent cytochrome-c oxidase to a copper-independent alternative oxidase type of respiration and results in lifespan extension. In addition, we demonstrate that increased copper concentrations in the culture medium lead to the appearance of senescence biomarkers in human diploid fibroblasts (HDFs). Significantly, expression of copper-regulated genes is induced during in vitro ageing in medium devoid of excess copper suggesting that cytosolic copper levels also increase during senescence of HDFs. These data suggest that the identified molecular pathway of age-dependent copper dynamics may not be restricted to P. anserina but may be conserved from lower eukaryotes to humans.
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Affiliation(s)
- Christian Q. Scheckhuber
- Institute of Molecular Biosciences, Johann Wolfgang Goethe University, Frankfurt am Main, Germany
| | - Jürgen Grief
- Institute of Molecular Biosciences, Johann Wolfgang Goethe University, Frankfurt am Main, Germany
| | - Emmanuelle Boilan
- Research Unit on Cellular Biology, University of Namur, Namur, Belgium
| | - Karin Luce
- Institute of Molecular Biosciences, Johann Wolfgang Goethe University, Frankfurt am Main, Germany
| | | | - Claudia Rittmeyer
- Institute of Inorganic Chemistry/Analytical Chemistry, Johann Wolfgang Goethe University, Frankfurt am Main, Germany
| | - Ricardo Gredilla
- Institute of Molecular Biosciences, Johann Wolfgang Goethe University, Frankfurt am Main, Germany
| | - Bernd O. Kolbesen
- Institute of Inorganic Chemistry/Analytical Chemistry, Johann Wolfgang Goethe University, Frankfurt am Main, Germany
| | - Olivier Toussaint
- Research Unit on Cellular Biology, University of Namur, Namur, Belgium
| | - Heinz D. Osiewacz
- Institute of Molecular Biosciences, Johann Wolfgang Goethe University, Frankfurt am Main, Germany
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19
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Fomina M, Charnock J, Bowen AD, Gadd GM. X-ray absorption spectroscopy (XAS) of toxic metal mineral transformations by fungi. Environ Microbiol 2007; 9:308-21. [PMID: 17222130 DOI: 10.1111/j.1462-2920.2006.01139.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Fungi can be highly efficient biogeochemical agents and accumulators of soluble and particulate forms of metals. This work aims to understand some of the physico-chemical mechanisms involved in toxic metal transformations focusing on the speciation of metals accumulated by fungi and mycorrhizal associations. The amorphous state or poor crystallinity of metal complexes within biomass and relatively low metal concentrations make the determination of metal speciation in biological systems a challenging problem but this can be overcome by using synchrotron-based element-specific X-ray absorption spectroscopy (XAS) techniques. In this research, we have exposed fungi and ectomycorrhizas to a variety of copper-, zinc- and lead-containing minerals. X-ray absorption spectroscopy studies revealed that oxygen ligands (phosphate, carboxylate) played a major role in toxic metal coordination within the fungal and ectomycorrhizal biomass during the accumulation of mobilized toxic metals. Coordination of toxic metals within biomass depended on the fungal species, initial mineral composition, the nitrogen source, and the physiological state/age of the fungal mycelium.
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Affiliation(s)
- Marina Fomina
- Division of Environmental and Applied Biology, Biological Sciences Institute, School of Life Sciences, University of Dundee, Dundee, DD1 4HN, UK
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20
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Kumar KS, Ravi Kumar B, Siddavattam D, Subramanyam C. Characterization of calcineurin-dependent response element binding protein and its involvement in copper-metallothionein gene expression in Neurospora. Biochem Biophys Res Commun 2006; 345:1010-3. [PMID: 16707100 DOI: 10.1016/j.bbrc.2006.05.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2006] [Accepted: 05/03/2006] [Indexed: 11/27/2022]
Abstract
In continuation of our recent observations indicating the presence of a lone calcineurin-dependent response element (CDRE) in the -3730bp upstream region of copper-induced metallothionein (CuMT) gene of Neurospora [K.S. Kumar, S. Dayananda, C. Subramanyam, Copper alone, but not oxidative stress, induces copper-metallothionein gene in Neurospora crassa, FEMS Microbiol. Lett. 242 (2005) 45-50], we isolated and characterized the CDRE-binding protein. The cloned upstream region of CuMT gene was used as the template to specifically amplify CDRE element, which was immobilized on CNBr-activated Sepharose 4B for use as the affinity matrix to purify the CDRE binding protein from nuclear extracts obtained from Neurospora cultures grown in presence of copper. Two-dimensional gel electrophoresis of the affinity purified protein revealed the presence of a single 17kDa protein, which was identified and characterized by MALDI-TOF. Peptide mass finger printing of tryptic digests and analysis of the 17kDa protein matched with the regulatory beta-subunit of calcineurin (Ca(2+)-calmodulin dependent protein phosphatase). Parallel identification of nuclear localization signals in this protein by in silico analysis suggests a putative role for calcineurin in the regulation of CuMT gene expression.
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21
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Jaeckel P, Krauss G, Menge S, Schierhorn A, Rücknagel P, Krauss GJ. Cadmium induces a novel metallothionein and phytochelatin 2 in an aquatic fungus. Biochem Biophys Res Commun 2005; 333:150-5. [PMID: 15939401 DOI: 10.1016/j.bbrc.2005.05.083] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2005] [Accepted: 05/17/2005] [Indexed: 11/21/2022]
Abstract
Cadmium stress response was measured at the thiol peptide level in an aquatic hyphomycete (Heliscus lugdunensis). In liquid culture, 0.1 mM cadmium increased the glutathione (GSH) content and induced the synthesis of additional thiol peptides. HPLC, electrospray ionization mass spectrometry, and Edman degradation confirmed that a novel small metallothionein as well as phytochelatin (PC2) were synthesized. The metallothionein has a high homology to family 8 metallothioneins (http://www.expasy.ch/cgi-bin/lists?metallo.txt). The bonding of at least two cadmium ions to the metallothionein was demonstrated by mass spectrometry (MALDI MS). This is the first time that simultaneous induction of metallothionein and phytochelatin accompanied by an increase in GSH level has been shown in a fungus under cadmium stress, indicating a potential function of these complexing agents for in vivo heavy metal detoxification. The method presented here should be applicable as biomarker tool.
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Affiliation(s)
- Petra Jaeckel
- UFZ Centre for Environmental Research Leipzig-Halle in the Helmholtz Association, Department of Environmental Microbiology, Halle/Saale, Germany
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