Non-mercury methylating microbial taxa are integral to understanding links between mercury methylation and elemental cycles in marine and freshwater sediments

Wang, Yong-Li; Ikuma, Kaoru; Brooks, Scott C.; Varonka, Matthew S.; Deonarine, Amrika

doi:10.1016/j.envpol.2024.123573

Title: Non-mercury methylating microbial taxa are integral to understanding links between mercury methylation and elemental cycles in marine and freshwater sediments

Journal Article · 13 February 2024 · Environmental Pollution

DOI: https://doi.org/10.1016/j.envpol.2024.123573 · OSTI ID:2317791

^[1];

^[2]; Brooks, Scott C. ^[3]; Varonka, Matthew S. ^[4];

^[1]

Texas Tech Univ., Lubbock, TX (United States)
Iowa State Univ., Ames, IA (United States)
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
US Geological Survey, Reston, VA (United States)

The goal of this study was to explore the role of non-mercury (Hg) methylating taxa in mercury methylation and to identify potential links between elemental cycles and Hg methylation. Statistical approaches were utilized to investigate the microbial community and biochemical functions in relation to methylmercury (MeHg) concentrations in marine and freshwater sediments. Sediments were collected from the methylation zone (top 15 cm) in four Hg-contaminated sites. Both abiotic (e.g., sulfate, sulfide, iron, salinity, total organic matter, etc.) and biotic factors (e.g., hgcA, abundances of methylating and non-methylating taxa) were quantified. Random forest and stepwise regression were performed to assess whether non-methylating taxa were significantly associated with MeHg concentration. Co-occurrence and functional network analyses were constructed to explore associations between taxa by examining microbial community structure, composition, and biochemical functions across sites. Regression analysis showed that approximately 80% of the variability in sediment MeHg concentration was predicted by total mercury concentration, the abundances of Hg methylating taxa, and the abundances of the non-Hg methylating taxa. The co-occurrence networks identified Paludibacteraceae and Syntrophorhabdaceae as keystone non Hg methylating taxa in multiple sites, indicating the potential for syntrophic interactions with Hg methylators. Strong associations were also observed between methanogens and sulfate-reducing bacteria, which were likely symbiotic associations. The functional network results suggested that non-Hg methylating taxa play important roles in sulfur respiration, nitrogen respiration, and the carbon metabolism-related functions methylotrophy, methanotrophy, and chemoheterotrophy. Interestingly, keystone functions varied by site and did not involve carbon- and sulfur-related functions only. In conclusion, our findings highlight associations between methylating and non-methylating taxa and sulfur, carbon, and nitrogen cycles in sediment methylation zones, with implications for predicting and understanding the impact of climate and land/sea use changes on Hg methylation.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Biological and Environmental Research (BER)

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 2317791

Journal Information:: Environmental Pollution, Journal Name: Environmental Pollution Journal Issue: 4 Vol. 346; ISSN 0269-7491

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

References (74)

Sediment quality assessment survey and toxicity identification evaluation studies in Lavaca Bay, Texas, a marine superfund site Carr, R. Scott; Biedenbach, James M.; Hooten, Russell L. Environmental Toxicology, Vol. 16, Issue 1 https://doi.org/10.1002/1522-7278(2001)16:1<20::AID-TOX30>3.0.CO;2-1	journal	January 2001
Biotic formation of methylmercury: A bio–physico–chemical conundrum Bravo, Andrea G.; Cosio, Claudia Limnology and Oceanography, Vol. 65, Issue 5 https://doi.org/10.1002/lno.11366	journal	November 2019
ggplot2: ggplot2 Wickham, Hadley Wiley Interdisciplinary Reviews: Computational Statistics, Vol. 3, Issue 2 https://doi.org/10.1002/wics.147	journal	February 2011
Microbial Recovery of Sulfur from Thiosulfate-Bearing Wastewater with Phototrophic and Sulfur-Reducing Bacteria Khanna, P.; Rajkumar, B.; Jothikumar, N. Current Microbiology, Vol. 32, Issue 1 https://doi.org/10.1007/s002849900006	journal	January 1996
Quantification of chlorophyll a, chlorophyll b and pheopigments a in lake sediments through deconvolution of bulk UV–VIS absorption spectra Sanchini, Andrea; Grosjean, Martin Journal of Paleolimnology, Vol. 64, Issue 3 https://doi.org/10.1007/s10933-020-00135-z	journal	June 2020
Mercury-methylating genes dsrB and hgcA in soils/sediments of the Three Gorges Reservoir Du, Hongxia; Ma, Ming; Sun, Tao Environmental Science and Pollution Research, Vol. 24, Issue 5 https://doi.org/10.1007/s11356-016-8213-9	journal	December 2016
Investigation of legacy industrial mercury in floodplain soils: South River, Virginia, USA Lazareva, Olesya; Sparks, Donald L.; Landis, Richard Environmental Earth Sciences, Vol. 78, Issue 8 https://doi.org/10.1007/s12665-019-8253-9	journal	April 2019
Determination of accurate extinction coefficients and simultaneous equations for assaying chlorophylls a and b extracted with four different solvents: verification of the concentration of chlorophyll standards by atomic absorption spectroscopy Porra, R. J.; Thompson, W. A.; Kriedemann, P. E. Biochimica et Biophysica Acta (BBA) - Bioenergetics, Vol. 975, Issue 3 https://doi.org/10.1016/S0005-2728(89)80347-0	journal	August 1989
The roles of natural organic matter in chemical and microbial reduction of ferric iron Chen, J.; Gu, B.; Royer, R. The Science of The Total Environment, Vol. 307, Issue 1-3 https://doi.org/10.1016/S0048-9697(02)00538-7	journal	May 2003
Differential responses of stream water and bed sediment microbial communities to watershed degradation Liao, Hehuan; Yen, Jiun Yang; Guan, Yingjie Environment International, Vol. 134 https://doi.org/10.1016/j.envint.2019.105198	journal	January 2020
Symbiosis of sulfate-reducing bacteria and methanogenic archaea in sewer systems Shi, Xuan; Gao, Ge; Tian, Jiameng Environment International, Vol. 143 https://doi.org/10.1016/j.envint.2020.105923	journal	October 2020
Impact of river overflowing on trace element contamination of volcanic soils in south Italy: Part II. Soil biological and biochemical properties in relation to trace element speciation D'Ascoli, R.; Rao, M. A.; Adamo, P. Environmental Pollution, Vol. 144, Issue 1 https://doi.org/10.1016/j.envpol.2005.11.017	journal	November 2006
History of mercury use and environmental contamination at the Oak Ridge Y-12 Plant Brooks, Scott C.; Southworth, George R. Environmental Pollution, Vol. 159, Issue 1 https://doi.org/10.1016/j.envpol.2010.09.009	journal	January 2011
Statistical determination of crucial taxa indicative of pollution gradients in sediments of Lake Taihu, China Li, Yi; Wu, Hainan; Shen, Yun Environmental Pollution, Vol. 246 https://doi.org/10.1016/j.envpol.2018.12.087	journal	March 2019
Marine mercury-methylating microbial communities from coastal to Capbreton Canyon sediments (North Atlantic Ocean) Azaroff, Alyssa; Goñi Urriza, Marisol; Gassie, Claire Environmental Pollution, Vol. 262 https://doi.org/10.1016/j.envpol.2020.114333	journal	July 2020
Linear regression and the normality assumption Schmidt, Amand F.; Finan, Chris Journal of Clinical Epidemiology, Vol. 98 https://doi.org/10.1016/j.jclinepi.2017.12.006	journal	June 2018
Bioassessment of heavy metal toxicity and enhancement of heavy metal removal by sulfate-reducing bacteria in the presence of zero valent iron Guo, Jing; Kang, Yong; Feng, Ying Journal of Environmental Management, Vol. 203 https://doi.org/10.1016/j.jenvman.2017.07.075	journal	December 2017
Amendments of nitrogen and sulfur mitigate carbon-promoting effect on microbial mercury methylation in paddy soils Li, Yunyun; Dai, Shu-Shen; Zhao, Jiating Journal of Hazardous Materials, Vol. 448 https://doi.org/10.1016/j.jhazmat.2023.130983	journal	April 2023
The divergent effects of nitrate and ammonium application on mercury methylation, demethylation, and reduction in flooded paddy slurries Chen, Ji; Hu, Gongren; Liu, Jiang Journal of Hazardous Materials, Vol. 460 https://doi.org/10.1016/j.jhazmat.2023.132457	journal	October 2023
Mercury methylation linked to nitrification in the tropical North Atlantic Ocean Starr, Lindsay D.; McCarthy, Mark J.; Hammerschmidt, Chad R. Marine Chemistry, Vol. 247 https://doi.org/10.1016/j.marchem.2022.104174	journal	December 2022
Current Trends in Methylotrophy Chistoserdova, Ludmila; Kalyuzhnaya, Marina G. Trends in Microbiology, Vol. 26, Issue 8 https://doi.org/10.1016/j.tim.2018.01.011	journal	August 2018
Microbial Communities Associated with Methylmercury Degradation in Paddy Soils Zhou, Xin-Quan; Hao, Yun-Yun; Gu, Baohua Environmental Science & Technology, Vol. 54, Issue 13 https://doi.org/10.1021/acs.est.0c00181	journal	May 2020
Mercury Methylation Genes Identified across Diverse Anaerobic Microbial Guilds in a Eutrophic Sulfate-Enriched Lake Peterson, Benjamin D.; McDaniel, Elizabeth A.; Schmidt, Anna G. Environmental Science & Technology, Vol. 54, Issue 24 https://doi.org/10.1021/acs.est.0c05435	journal	November 2020
Impacts of Sediment Particle Grain Size and Mercury Speciation on Mercury Bioavailability Potential Xu, Jiang; Bland, Garret D.; Gu, Yuan Environmental Science & Technology, Vol. 55, Issue 18 https://doi.org/10.1021/acs.est.1c03572	journal	September 2021
Contrasting Effects of Dissolved Organic Matter on Mercury Methylation by Geobacter sulfurreducens PCA and Desulfovibrio desulfuricans ND132 Zhao, Linduo; Chen, Hongmei; Lu, Xia Environmental Science & Technology, Vol. 51, Issue 18 https://doi.org/10.1021/acs.est.7b02518	journal	August 2017
Sulfurization of Dissolved Organic Matter Increases Hg–Sulfide–Dissolved Organic Matter Bioavailability to a Hg-Methylating Bacterium Graham, Andrew M.; Cameron-Burr, Keaton T.; Hajic, Hayley A. Environmental Science & Technology, Vol. 51, Issue 16 https://doi.org/10.1021/acs.est.7b02781	journal	July 2017
Unraveling Microbial Communities Associated with Methylmercury Production in Paddy Soils Liu, Yu-Rong; Johs, Alexander; Bi, Li Environmental Science & Technology, Vol. 52, Issue 22 https://doi.org/10.1021/acs.est.8b03052	journal	October 2018
Determining the Reliability of Measuring Mercury Cycling Gene Abundance with Correlations with Mercury and Methylmercury Concentrations Christensen, Geoff A.; Gionfriddo, Caitlin M.; King, Andrew J. Environmental Science & Technology, Vol. 53, Issue 15 https://doi.org/10.1021/acs.est.8b06389	journal	July 2019
Microbial Biosynthesis of Thiol Compounds: Implications for Speciation, Cellular Uptake, and Methylation of Hg(II) Adediran, Gbotemi A.; Liem-Nguyen, Van; Song, Yu Environmental Science & Technology, Vol. 53, Issue 14 https://doi.org/10.1021/acs.est.9b01502	journal	June 2019
Overlooked Role of Putative Non-Hg Methylators in Predicting Methylmercury Production in Paddy Soils Liu, Yu-Rong; Yang, Ziming; Zhou, Xinquan Environmental Science & Technology, Vol. 53, Issue 21 https://doi.org/10.1021/acs.est.9b03013	journal	October 2019
Acid Volatile Sulfides (AVS) in Sediment: An Environmental Chemistry Experiment Brouwer, Henry Journal of Chemical Education, Vol. 72, Issue 2 https://doi.org/10.1021/ed072p182	journal	February 1995
Importance of Dissolved Neutral Mercury Sulfides for Methyl Mercury Production in Contaminated Sediments Drott, Andreas; Lambertsson, Lars; Björn, Erik Environmental Science & Technology, Vol. 41, Issue 7 https://doi.org/10.1021/es061724z	journal	April 2007
Methylation of Mercury by Bacteria Exposed to Dissolved, Nanoparticulate, and Microparticulate Mercuric Sulfides Zhang, Tong; Kim, Bojeong; Levard, Clément Environmental Science & Technology, Vol. 46, Issue 13 https://doi.org/10.1021/es203181m	journal	January 2012
Dissolved Organic Matter Enhances Microbial Mercury Methylation Under Sulfidic Conditions Graham, Andrew M.; Aiken, George R.; Gilmour, Cynthia C. Environmental Science & Technology, Vol. 46, Issue 5 https://doi.org/10.1021/es203658f	journal	February 2012
Mechanisms Regulating Mercury Bioavailability for Methylating Microorganisms in the Aquatic Environment: A Critical Review Hsu-Kim, Heileen; Kucharzyk, Katarzyna H.; Zhang, Tong Environmental Science & Technology, Vol. 47, Issue 6 https://doi.org/10.1021/es304370g	journal	February 2013
Relationship between Extracellular Low-Molecular-Weight Thiols and Mercury Species in Natural Lake Periphytic Biofilms Leclerc, Maxime; Planas, Dolors; Amyot, Marc Environmental Science & Technology, Vol. 49, Issue 13 https://doi.org/10.1021/es505952x	journal	June 2015
Precipitation of Mercuric Sulfide Nanoparticles in NOM-Containing Water: Implications for the Natural Environment Deonarine, Amrika; Hsu-Kim, Heileen Environmental Science & Technology, Vol. 43, Issue 7 https://doi.org/10.1021/es803130h	journal	April 2009
Historical Interrelated Variations of Mercury and Aquatic Organic Matter in Lake Sediment Cores from a Subarctic Lake in Yukon, Canada: Further Evidence toward the Algal-Mercury Scavenging Hypothesis Stern, G. A.; Sanei, H.; Roach, P. Environmental Science & Technology, Vol. 43, Issue 20 https://doi.org/10.1021/es902186s	journal	October 2009
Random Forests Breiman, Leo Machine Learning, Vol. 45, Issue 1, p. 5-32 https://doi.org/10.1023/A:1010933404324	journal	January 2001
Global ecological patterns in uncultured Archaea Auguet, Jean-Christophe; Barberan, Albert; Casamayor, Emilio O. The ISME Journal, Vol. 4, Issue 2 https://doi.org/10.1038/ismej.2009.109	journal	October 2009
Geobacteraceae are important members of mercury-methylating microbial communities of sediments impacted by waste water releases Bravo, Andrea G.; Zopfi, Jakob; Buck, Moritz The ISME Journal, Vol. 12, Issue 3 https://doi.org/10.1038/s41396-017-0007-7	journal	January 2018
Crystalline iron oxides stimulate methanogenic benzoate degradation in marine sediment-derived enrichment cultures Aromokeye, David A.; Oni, Oluwatobi E.; Tebben, Jan The ISME Journal, Vol. 15, Issue 4 https://doi.org/10.1038/s41396-020-00824-7	journal	November 2020
Keystone taxa as drivers of microbiome structure and functioning Banerjee, Samiran; Schlaeppi, Klaus; van der Heijden, Marcel G. A. Nature Reviews Microbiology, Vol. 16, Issue 9 https://doi.org/10.1038/s41579-018-0024-1	journal	May 2018
Modularity and community structure in networks Newman, M. E. J. Proceedings of the National Academy of Sciences, Vol. 103, Issue 23 https://doi.org/10.1073/pnas.0601602103	journal	May 2006
Mercury reduction and complexation by natural organic matter in anoxic environments Gu, B.; Bian, Y.; Miller, C. L. Proceedings of the National Academy of Sciences, Vol. 108, Issue 4 https://doi.org/10.1073/pnas.1008747108	journal	January 2011
Racemicystis crocea gen. nov., sp. nov., a soil myxobacterium in the family Polyangiaceae Awal, Ram Prasad; Garcia, Ronald; Müller, Rolf International Journal of Systematic and Evolutionary Microbiology, Vol. 66, Issue 6 https://doi.org/10.1099/ijsem.0.001045	journal	June 2016
Soil organic matter availability and climate drive latitudinal patterns in bacterial diversity from tropical to cold temperate forests Tian, Jing; He, Nianpeng; Hale, Lauren Functional Ecology, Vol. 32, Issue 1 https://doi.org/10.1111/1365-2435.12952	journal	September 2017
A protocol for data exploration to avoid common statistical problems: Data exploration Zuur, Alain F.; Ieno, Elena N.; Elphick, Chris S. Methods in Ecology and Evolution, Vol. 1, Issue 1 https://doi.org/10.1111/j.2041-210X.2009.00001.x	journal	November 2009
Global prevalence and distribution of genes and microorganisms involved in mercury methylation Podar, Mircea; Gilmour, Cynthia C.; Brandt, Craig C. Science Advances, Vol. 1, Issue 9 https://doi.org/10.1126/sciadv.1500675	journal	October 2015
The Genetic Basis for Bacterial Mercury Methylation Parks, J. M.; Johs, A.; Podar, M. Science, Vol. 339, Issue 6125, p. 1332-1335 https://doi.org/10.1126/science.1230667	journal	February 2013
Decoupling function and taxonomy in the global ocean microbiome Louca, S.; Parfrey, L. W.; Doebeli, M. Science, Vol. 353, Issue 6305 https://doi.org/10.1126/science.aaf4507	journal	September 2016
Carbon Amendments Alter Microbial Community Structure and Net Mercury Methylation Potential in Sediments Christensen, Geoff A.; Somenahally, Anil C.; Moberly, James G. Applied and Environmental Microbiology, Vol. 84, Issue 3 https://doi.org/10.1128/AEM.01049-17	journal	November 2017
Development and Validation of Broad-Range Qualitative and Clade-Specific Quantitative Molecular Probes for Assessing Mercury Methylation in the Environment Christensen, Geoff A.; Wymore, Ann M.; King, Andrew J. Applied and Environmental Microbiology, Vol. 82, Issue 19 https://doi.org/10.1128/AEM.01271-16	journal	July 2016
Syntrophs Dominate Sequences Associated with the Mercury Methylation-Related Gene hgcA in the Water Conservation Areas of the Florida Everglades Bae, Hee-Sung; Dierberg, Forrest E.; Ogram, Andrew Applied and Environmental Microbiology, Vol. 80, Issue 20 https://doi.org/10.1128/AEM.01666-14	journal	August 2014
Analysis of the Microbial Community Structure by Monitoring an Hg Methylation Gene (hgcA) in Paddy Soils along an Hg Gradient Liu, Y. -R.; Yu, R. -Q.; Zheng, Y. -M. Applied and Environmental Microbiology, Vol. 80, Issue 9 https://doi.org/10.1128/AEM.04225-13	journal	February 2014
Aspects of Bioavailability of Mercury for Methylation in Pure Cultures of Desulfobulbus propionicus (1pr3) Benoit, J. M.; Gilmour, C. C.; Mason, R. P. Applied and Environmental Microbiology, Vol. 67, Issue 1 https://doi.org/10.1128/AEM.67.1.51-58.2001	journal	January 2001
Microbial Community Resilience across Ecosystems and Multiple Disturbances Philippot, Laurent; Griffiths, Bryan S.; Langenheder, Silke Microbiology and Molecular Biology Reviews, Vol. 85, Issue 2 https://doi.org/10.1128/MMBR.00026-20	journal	May 2021
Sulfate-Reducing Bacteria: Principal Methylators of Mercury in Anoxic Estuarine Sediment † Compeau, G. C.; Bartha, R. Applied and Environmental Microbiology, Vol. 50, Issue 2 https://doi.org/10.1128/aem.50.2.498-502.1985	journal	January 1985
The Structure and Function of Complex Networks Newman, M. E. J. SIAM Review, Vol. 45, Issue 2 https://doi.org/10.1137/S003614450342480	journal	January 2003
Difficulty in inferring microbial community structure based on co-occurrence network approaches Hirano, Hokuto; Takemoto, Kazuhiro BMC Bioinformatics, Vol. 20, Issue 1 https://doi.org/10.1186/s12859-019-2915-1	journal	June 2019
Experimental and Natural Warming Elevates Mercury Concentrations in Estuarine Fish Dijkstra, Jennifer A.; Buckman, Kate L.; Ward, Darren PLoS ONE, Vol. 8, Issue 3 https://doi.org/10.1371/journal.pone.0058401	journal	March 2013
Strengths and Limitations of 16S rRNA Gene Amplicon Sequencing in Revealing Temporal Microbial Community Dynamics Poretsky, Rachel; Rodriguez-R, Luis M.; Luo, Chengwei PLoS ONE, Vol. 9, Issue 4 https://doi.org/10.1371/journal.pone.0093827	journal	April 2014
Methylmercury Exposure and Health Effects in Humans: A Worldwide Concern Mergler, Donna; Anderson, Henry A.; Chan, Laurie Hing Man AMBIO: A Journal of the Human Environment, Vol. 36, Issue 1 https://doi.org/10.1579/0044-7447(2007)36[3:MEAHEI]2.0.CO;2	journal	February 2007
What do Interaction Network Metrics tell us About Specialization and Biological Traits Blüthgen, Nico; Fründ, Jochen; Vázquez, Diego P. Ecology, Vol. 89, Issue 12 https://doi.org/10.1890/07-2121.1	journal	December 2008
Challenges in the Quest for Keystones Power, Mary E.; Tilman, David; Estes, James A. BioScience, Vol. 46, Issue 8 https://doi.org/10.2307/1312990	journal	September 1996
Global phylogenetic community structure and β-diversity patterns in surface bacterioplankton metacommunities Barberán, A.; Casamayor, Eo Aquatic Microbial Ecology, Vol. 59 https://doi.org/10.3354/ame01389	journal	March 2010
Deciphering microbial interactions and detecting keystone species with co-occurrence networks Berry, David; Widder, Stefanie Frontiers in Microbiology, Vol. 5 https://doi.org/10.3389/fmicb.2014.00219	journal	May 2014
Soil Application of a Formulated Biocontrol Rhizobacterium, Pseudomonas chlororaphis PCL1606, Induces Soil Suppressiveness by Impacting Specific Microbial Communities Tienda, Sandra; Vida, Carmen; Lagendijk, Ellen Frontiers in Microbiology, Vol. 11 https://doi.org/10.3389/fmicb.2020.01874	journal	August 2020
An Improved hgcAB Primer Set and Direct High-Throughput Sequencing Expand Hg-Methylator Diversity in Nature Gionfriddo, Caitlin M.; Wymore, Ann M.; Jones, Daniel S. Frontiers in Microbiology, Vol. 11 https://doi.org/10.3389/fmicb.2020.541554	journal	October 2020
Nutrient Exposure Alters Microbial Composition, Structure, and Mercury Methylating Activity in Periphyton in a Contaminated Watershed Carrell, Alyssa A.; Schwartz, Grace E.; Cregger, Melissa A. Frontiers in Microbiology, Vol. 12 https://doi.org/10.3389/fmicb.2021.647861	journal	March 2021
Nutrient Inputs Stimulate Mercury Methylation by Syntrophs in a Subarctic Peatland Roth, Spencer; Poulin, Brett A.; Baumann, Zofia Frontiers in Microbiology, Vol. 12 https://doi.org/10.3389/fmicb.2021.741523	journal	October 2021
Preliminary Assessment of Microbial Community Structure of Wind-Tidal Flats in the Laguna Madre, Texas, USA Huang, I. -Shuo; Pinnell, Lee J.; Turner, Jeffrey W. Biology, Vol. 9, Issue 8 https://doi.org/10.3390/biology9080183	journal	July 2020
Microbial Communities Involved in Methane, Sulfur, and Nitrogen Cycling in the Sediments of the Barents Sea Begmatov, Shahjahon; Savvichev, Alexander S.; Kadnikov, Vitaly V. Microorganisms, Vol. 9, Issue 11 https://doi.org/10.3390/microorganisms9112362	journal	November 2021
Geochemical Characterization of Base Metals in Stream Water and Sediments in the Caddo Lake Watershed, Cass, Harrison and Marion Counties, Texas Faulkner, Melinda S.; Ertons, Melanie L.; Watkins, Joseph W. Journal of Geoscience and Environment Protection, Vol. 08, Issue 09 https://doi.org/10.4236/gep.2020.89001	journal	January 2020

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