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Liu Z, Wang J, Xie J, Yao D, Yang S, Ge J. Interactions among heavy metals and methane-metabolizing microorganisms and their effects on methane emissions in Dajiuhu peatland. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:37415-37426. [PMID: 36572772 DOI: 10.1007/s11356-022-24868-8] [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: 06/28/2022] [Accepted: 12/15/2022] [Indexed: 06/18/2023]
Abstract
Peatlands play a crucial role in mediating the emissions of methane through active biogeochemical cycling of accumulated carbon driven by methane-metabolizing microorganisms; meanwhile, they serve as vital archives of atmospheric heavy metal deposition. Despite many edaphic factors confirmed as determinants to modulate the structure of methanotrophic and methanogenic communities, recognition of interactions among them is limited. In this study, peat soils were collected from Dajiuhu peatland to assess the presence of heavy metals, and methanotrophs and methanogens were investigated via high-throughput sequencing for functional genes mcrA and pmoA. Further analyses of the correlations between methane-related functional groups were conducted. The results demonstrated that both methane-metabolizing microorganisms and heavy metals have prominent vertical heterogeneity upward and downward along the depth of 20 cm. Pb, Cd, and Hg strongly correlated with methanotrophs and methanogens across all seasons and depths, serving as forceful factors in structural variations of methanogenic and methanotrophic communities. Particularly, Pb, Cd, and Hg were identified as excessive elements in Dajiuhu peatland. Furthermore, seasonal variations of networks among methane-related functional groups and environmental factors significantly affected the changes of methane fluxes across different seasons. Concretely, the complicated interactions were detrimental to methane emissions in the Dajiuhu peatland, leading to the minimum methane emissions in winter. Our study identified the key heavy metals affecting the composition of methane-metabolizing microorganisms and linkages between seasonal variations of methane emissions and interaction among heavy metals and methane-metabolizing microorganisms, which provided much new reference and theoretical basis for integrated management of natural peatlands.
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Affiliation(s)
- Ziwei Liu
- School of Environmental Studies, China University of Geosciences (Wuhan), 68 Jincheng Street, Hongshan District, Wuhan, 430078, Hubei Province, China
- Laboratory of Basin Hydrology and Wetland Eco-Restoration, China University of Geosciences (Wuhan), Wuhan, 430078, China
- Hubei Key Laboratory of Wetland Evolution and Ecological Restoration, China University of Geosciences (Wuhan), Wuhan, 430078, China
- Institution of Ecology and Environmental Sciences, China University of Geosciences (Wuhan), Wuhan, 430078, China
| | - Jiumei Wang
- School of Environmental Studies, China University of Geosciences (Wuhan), 68 Jincheng Street, Hongshan District, Wuhan, 430078, Hubei Province, China
- Laboratory of Basin Hydrology and Wetland Eco-Restoration, China University of Geosciences (Wuhan), Wuhan, 430078, China
- Hubei Key Laboratory of Wetland Evolution and Ecological Restoration, China University of Geosciences (Wuhan), Wuhan, 430078, China
- Institution of Ecology and Environmental Sciences, China University of Geosciences (Wuhan), Wuhan, 430078, China
| | - Jinlin Xie
- School of Environmental Studies, China University of Geosciences (Wuhan), 68 Jincheng Street, Hongshan District, Wuhan, 430078, Hubei Province, China
- Laboratory of Basin Hydrology and Wetland Eco-Restoration, China University of Geosciences (Wuhan), Wuhan, 430078, China
- Hubei Key Laboratory of Wetland Evolution and Ecological Restoration, China University of Geosciences (Wuhan), Wuhan, 430078, China
- Institution of Ecology and Environmental Sciences, China University of Geosciences (Wuhan), Wuhan, 430078, China
| | - Dong Yao
- School of Environmental Studies, China University of Geosciences (Wuhan), 68 Jincheng Street, Hongshan District, Wuhan, 430078, Hubei Province, China
- Laboratory of Basin Hydrology and Wetland Eco-Restoration, China University of Geosciences (Wuhan), Wuhan, 430078, China
- Hubei Key Laboratory of Wetland Evolution and Ecological Restoration, China University of Geosciences (Wuhan), Wuhan, 430078, China
- Institution of Ecology and Environmental Sciences, China University of Geosciences (Wuhan), Wuhan, 430078, China
| | - Shiyu Yang
- School of Environmental Studies, China University of Geosciences (Wuhan), 68 Jincheng Street, Hongshan District, Wuhan, 430078, Hubei Province, China
- Laboratory of Basin Hydrology and Wetland Eco-Restoration, China University of Geosciences (Wuhan), Wuhan, 430078, China
- Hubei Key Laboratory of Wetland Evolution and Ecological Restoration, China University of Geosciences (Wuhan), Wuhan, 430078, China
- Institution of Ecology and Environmental Sciences, China University of Geosciences (Wuhan), Wuhan, 430078, China
| | - Jiwen Ge
- School of Environmental Studies, China University of Geosciences (Wuhan), 68 Jincheng Street, Hongshan District, Wuhan, 430078, Hubei Province, China.
- Laboratory of Basin Hydrology and Wetland Eco-Restoration, China University of Geosciences (Wuhan), Wuhan, 430078, China.
- Hubei Key Laboratory of Wetland Evolution and Ecological Restoration, China University of Geosciences (Wuhan), Wuhan, 430078, China.
- Institution of Ecology and Environmental Sciences, China University of Geosciences (Wuhan), Wuhan, 430078, China.
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Zeng T, Hu Q, Rene ER, Lens PNL. Microbial community and extracellular polymeric substances analysis of anaerobic granular sludge exposed to selenate, cadmium and zinc. Microb Biotechnol 2022; 16:463-473. [PMID: 36478398 PMCID: PMC9871511 DOI: 10.1111/1751-7915.14187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 11/04/2022] [Accepted: 11/20/2022] [Indexed: 12/12/2022] Open
Abstract
The microbial community and extracellular polymeric substances composition of anaerobic granular sludge exposed to selenate (~10 mg/L), cadmium (Cd) and zinc (Zn) (~2 and 5 mg/L) were investigated by high-throughput sequencing and fluorescence excitation emission matrix (FEEM) spectra, respectively. As a response to selenate, Cd and/or Zn exposure, significant fluorescence quenching of fulvic-like acids and humic-like substances was observed. With selenate, Cd and/or Zn in the influent with respective concentrations of 10, 5 and 5 mg/L, the abundance of the phyla Proteobacteria, Firmicutes, Spirochaetae, Cloacimonetes and Synergistetes increased significantly, and the dominant taxa in the anaerobic granular sludge exposed to Se, Cd and/or Zn were Halothiobacillaceae (10.2%), Pseudomonas (8.8%), Synergistaceae (7.7%), Spirochaetaceae (7.2%), Blvii28 wastewater sludge group (6.7%), Telmatospirillum (4.6%), Veillonellaceae (4.3%), Geobacter (4.0%) and Enterobacteriaceae (3.0%). Compared with the inoculum, the abundance of the archaea Methanobacterium and Methanosaeta decreased to below detection limit in the UASB reactor after 116 days exposure to Se, Cd and Zn.
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Affiliation(s)
- Taotao Zeng
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse TechnologyUniversity of South ChinaHengyangChina
| | - Qing Hu
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse TechnologyUniversity of South ChinaHengyangChina
| | - Eldon R. Rene
- UNESCO‐IHE Institute for Water EducationDelftThe Netherlands
| | - Piet N. L. Lens
- UNESCO‐IHE Institute for Water EducationDelftThe Netherlands
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Abdel Azim A, Rittmann SKMR, Fino D, Bochmann G. The physiological effect of heavy metals and volatile fatty acids on Methanococcus maripaludis S2. BIOTECHNOLOGY FOR BIOFUELS 2018; 11:301. [PMID: 30410576 PMCID: PMC6214177 DOI: 10.1186/s13068-018-1302-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 10/25/2018] [Indexed: 05/16/2023]
Abstract
BACKGROUND Methanogenic archaea are of importance to the global C-cycle and to biological methane (CH4) production through anaerobic digestion and pure culture. Here, the individual and combined effects of copper (Cu), zinc (Zn), acetate, and propionate on the metabolism of the autotrophic, hydrogenotrophic methanogen Methanococcus maripaludis S2 were investigated. Cu, Zn, acetate, and propionate may interfere directly and indirectly with the acetyl-CoA synthesis and biological CH4 production. Thus, these compounds can compromise or improve the performance of M. maripaludis, an organism which can be applied as biocatalyst in the carbon dioxide (CO2)-based biological CH4 production (CO2-BMP) process or of methanogenic organisms applied in anaerobic digestion. RESULTS Here, we show that Cu concentration of 1.9 µmol L-1 reduced growth of M. maripaludis, whereas 4.4 and 6.3 µmol L-1 of Cu even further retarded biomass production. However, 1.0 mmol L-1 of Zn enhanced growth, but at Zn concentrations > 2.4 mmol L-1 no growth could be observed. When both, Cu and Zn, were supplemented to the medium, growth and CH4 production could even be observed at the highest tested concentration of Cu (6.3 µmol L-1). Hence, it seems that the addition of 1 mmol L-1 of Zn enhanced the ability of M. maripaludis to counteract the toxic effect of Cu. The physiological effect to rising concentrations of acetate (12.2, 60.9, 121.9 mmol L-1) and/or propionate (10.3, 52.0, 104.1 mmol L-1) was also investigated. When instead of acetate 10.3 mmol L-1 propionate was provided in the growth medium, M. maripaludis could grow without reduction of the specific growth rate (µ) or the specific CH4 productivity (qCH4). A combination of inorganic and/or organic compounds resulted in an increase of µ and qCH4 for Zn/Cu and Zn/acetate beyond the values that were observed if only the individual concentrations of Zn, Cu, acetate were used. CONCLUSIONS Our study sheds light on the physiological effect of VFAs and heavy metals on M. maripaludis. Differently from µ and qCH4, MER was not influenced by the presence of these compounds. This indicated that each of these compounds directly interacted with the C-fixation machinery of M. maripaludis. Until now, the uptake of VFAs other than acetate was not considered to enhance growth and CH4 production of methanogens. The finding of propionate uptake by M. maripaludis is important for the interpretation of VFA cycling in anaerobic microenvironments. Due to the importance of methanogens in natural and artificial anaerobic environments, our results help to enhance the understanding the physiological and biotechnological importance with respect to anaerobic digestion, anaerobic wastewater treatment, and CO2-BMP. Finally, we propose a possible mechanism for acetate uptake into M. maripaludis supported by in silico analyses.
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Affiliation(s)
- Annalisa Abdel Azim
- Institute for Environmental Biotechnology, IFA Department Tulln, University of Natural Resources and Life Sciences, Vienna, Austria
- Archaea Physiology & Biotechnology Group, Archaea Biology and Ecogenomics Division, Department of Ecogenomics and Systems Biology, Universität Wien, Althanstraße 14, 1090 Vienna, Austria
- Department of Applied Science and Technology (DISAT), Politecnico di Torino, Turin, Italy
- Center for Sustainable Future Technologies, Istituto Italiano di Tecnologia, Turin, Italy
| | - Simon K.-M. R. Rittmann
- Archaea Physiology & Biotechnology Group, Archaea Biology and Ecogenomics Division, Department of Ecogenomics and Systems Biology, Universität Wien, Althanstraße 14, 1090 Vienna, Austria
| | - Debora Fino
- Department of Applied Science and Technology (DISAT), Politecnico di Torino, Turin, Italy
| | - Günther Bochmann
- Institute for Environmental Biotechnology, IFA Department Tulln, University of Natural Resources and Life Sciences, Vienna, Austria
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Copper stressed anaerobic fermentation: biogas properties, process stability, biodegradation and enzyme responses. Biodegradation 2017; 28:369-381. [DOI: 10.1007/s10532-017-9802-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 07/14/2017] [Indexed: 12/20/2022]
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Ramos-Ruiz A, Zeng C, Sierra-Alvarez R, Teixeira LH, Field JA. Microbial toxicity of ionic species leached from the II-VI semiconductor materials, cadmium telluride (CdTe) and cadmium selenide (CdSe). CHEMOSPHERE 2016; 162:131-8. [PMID: 27494313 PMCID: PMC5003732 DOI: 10.1016/j.chemosphere.2016.07.081] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 07/21/2016] [Accepted: 07/25/2016] [Indexed: 05/14/2023]
Abstract
This work investigated the microbial toxicity of soluble species that can potentially be leached from the II-VI semiconductor materials, cadmium telluride and cadmium selenide. The soluble ions tested included: cadmium, selenite, selenate, tellurite, and tellurate. Their toxicity towards the acetoclastic and hydrogen-consuming trophic groups in a methanogenic consortium as well as towards a bioluminescent marine bacterium, Aliivibrio fischeri (Microtox(®) test), was assessed. The acetoclastic methanogenic activity was the most affected as evidenced by the low 50% inhibiting concentrations (IC50) values obtained of 8.6 mg L(-1) for both cadmium and tellurite, 10.2 mg L(-1) for tellurate, and 24.1 mg L(-1) for selenite. Both tellurium oxyanions caused a strong inhibition of acetoclastic methanogenesis at low concentrations, each additional increment in concentration provided progressively less inhibition increase. In the case of the hydrogenotrophic methanogenesis, cadmium followed by selenite caused the greatest inhibition with IC50 values of 2.9 and 18.0 mg L(-1), respectively. Tellurite caused a moderate effect as evidenced by a 36.8% inhibition of the methanogenic activity at the highest concentration tested, and a very mild effect of tellurate was observed. Microtox(®) analyses showed a noteworthy inhibition of cadmium, selenite, and tellurite with 50% loss in bioluminescence after 30 min of exposure of 5.5, 171.1, and 458.6 mg L(-1), respectively. These results suggest that the leaching of cadmium, tellurium and selenium ions from semiconductor materials can potentially cause microbial toxicity.
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Affiliation(s)
- Adriana Ramos-Ruiz
- Department of Chemical and Environmental Engineering, University of Arizona, P.O. Box 210011, Tucson, AZ 85721-0011, USA
| | - Chao Zeng
- Department of Chemical and Environmental Engineering, University of Arizona, P.O. Box 210011, Tucson, AZ 85721-0011, USA
| | - Reyes Sierra-Alvarez
- Department of Chemical and Environmental Engineering, University of Arizona, P.O. Box 210011, Tucson, AZ 85721-0011, USA
| | - Luiz H Teixeira
- Department of Chemical and Environmental Engineering, University of Arizona, P.O. Box 210011, Tucson, AZ 85721-0011, USA
| | - Jim A Field
- Department of Chemical and Environmental Engineering, University of Arizona, P.O. Box 210011, Tucson, AZ 85721-0011, USA.
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6
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Improving Biomethane Production and Mass Bioconversion of Corn Stover Anaerobic Digestion by Adding NaOH Pretreatment and Trace Elements. BIOMED RESEARCH INTERNATIONAL 2015; 2015:125241. [PMID: 26137469 PMCID: PMC4468275 DOI: 10.1155/2015/125241] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 01/17/2015] [Accepted: 02/03/2015] [Indexed: 11/17/2022]
Abstract
This research applied sodium hydroxide (NaOH) pretreatment and trace elements to improve biomethane production when using corn stover for anaerobic digestion. Full-factor experimental tests identified the best combination of trace elements with the NaOH pretreatment, indicating that the best combination was with 1.0, 0.4, and 0.4 mg·L(-1)·d(-1) of elements Fe, Co, and Ni, respectively. The cumulative biomethane production adding NaOH pretreatment and trace elements was 11,367 mL; total solid bioconversion rate was 55.7%, which was 41.8%-62.2% higher than with NaOH-pretreatment alone and 22.2%-56.3% higher than with untreated corn stover. The best combination was obtained 5-9 days shorter than T90 and maintained good system operation stability. Only a fraction of the trace elements in the best combination was present in the resulting solution; more than 85% of the total amounts added were transferred into the solid fraction. Adding 0.897 g of Fe, 0.389 g of Co, and 0.349 g of Ni satisfied anaerobic digestion needs and enhanced biological activity at the beginning of the operation. The results showed that NaOH pretreatment and adding trace elements improve corn stover biodegradability and enhance biomethane production.
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7
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Chen JL, Ortiz R, Steele TWJ, Stuckey DC. Toxicants inhibiting anaerobic digestion: a review. Biotechnol Adv 2014; 32:1523-34. [PMID: 25457225 DOI: 10.1016/j.biotechadv.2014.10.005] [Citation(s) in RCA: 244] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 10/08/2014] [Accepted: 10/08/2014] [Indexed: 01/18/2023]
Abstract
Anaerobic digestion is increasingly being used to treat wastes from many sources because of its manifold advantages over aerobic treatment, e.g. low sludge production and low energy requirements. However, anaerobic digestion is sensitive to toxicants, and a wide range of compounds can inhibit the process and cause upset or failure. Substantial research has been carried out over the years to identify specific inhibitors/toxicants, and their mechanism of toxicity in anaerobic digestion. In this review we present a detailed and critical summary of research on the inhibition of anaerobic processes by specific organic toxicants (e.g., chlorophenols, halogenated aliphatics and long chain fatty acids), inorganic toxicants (e.g., ammonia, sulfide and heavy metals) and in particular, nanomaterials, focusing on the mechanism of their inhibition/toxicity. A better understanding of the fundamental mechanisms behind inhibition/toxicity will enhance the wider application of anaerobic digestion.
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Affiliation(s)
- Jian Lin Chen
- Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, Nanyang Technological University, Singapore 637141
| | - Raphael Ortiz
- School of Materials Science & Engineering, College of Engineering, Nanyang Technological University, Singapore 637141
| | - Terry W J Steele
- School of Materials Science & Engineering, College of Engineering, Nanyang Technological University, Singapore 637141.
| | - David C Stuckey
- Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, Nanyang Technological University, Singapore 637141; Department of Chemical Engineering, Imperial College London, London SW7 2AZ, UK.
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Kang S, Van Nostrand JD, Gough HL, He Z, Hazen TC, Stahl DA, Zhou J. Functional gene array-based analysis of microbial communities in heavy metals-contaminated lake sediments. FEMS Microbiol Ecol 2013; 86:200-14. [DOI: 10.1111/1574-6941.12152] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Revised: 05/19/2013] [Accepted: 05/21/2013] [Indexed: 11/28/2022] Open
Affiliation(s)
- Sanghoon Kang
- Department of Microbiology and Plant Biology; Institute for Environmental Genomics; University of Oklahoma; Norman; OK; USA
| | - Joy D. Van Nostrand
- Department of Microbiology and Plant Biology; Institute for Environmental Genomics; University of Oklahoma; Norman; OK; USA
| | - Heidi L. Gough
- Department of Civil and Environmental Engineering; University of Washington; Seattle; WA; USA
| | - Zhili He
- Department of Microbiology and Plant Biology; Institute for Environmental Genomics; University of Oklahoma; Norman; OK; USA
| | - Terry C. Hazen
- Department of Earth and Planetary Sciences; University of Tennessee; Knoxville; TN; USA
| | - David A. Stahl
- Department of Civil and Environmental Engineering; University of Washington; Seattle; WA; USA
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Lira-Silva E, Santiago-Martínez MG, Hernández-Juárez V, García-Contreras R, Moreno-Sánchez R, Jasso-Chávez R. Activation of methanogenesis by cadmium in the marine archaeon Methanosarcina acetivorans. PLoS One 2012; 7:e48779. [PMID: 23152802 PMCID: PMC3495967 DOI: 10.1371/journal.pone.0048779] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Accepted: 10/01/2012] [Indexed: 12/01/2022] Open
Abstract
Methanosarcina acetivorans was cultured in the presence of CdCl2 to determine the metal effect on cell growth and biogas production. With methanol as substrate, cell growth and methane synthesis were not altered by cadmium, whereas with acetate, cadmium slightly increased both, growth and methane rate synthesis. In cultures metabolically active, incubations for short-term (minutes) with 10 µM total cadmium increased the methanogenesis rate by 6 and 9 folds in methanol- and acetate-grown cells, respectively. Cobalt and zinc but not copper or iron also activated the methane production rate. Methanogenic carbonic anhydrase and acetate kinase were directly activated by cadmium. Indeed, cells cultured in 100 µM total cadmium removed 41–69% of the heavy metal from the culture and accumulated 231–539 nmol Cd/mg cell protein. This is the first report showing that (i) Cd2+ has an activating effect on methanogenesis, a biotechnological relevant process in the bio-fuels field; and (ii) a methanogenic archaea is able to remove a heavy metal from aquatic environments.
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Affiliation(s)
- Elizabeth Lira-Silva
- Departamento de Bioquímica, Instituto Nacional de Cardiología, Tlalpan, México D.F., México
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Besaury L, Ouddane B, Pavissich JP, Dubrulle-Brunaud C, González B, Quillet L. Impact of copper on the abundance and diversity of sulfate-reducing prokaryotes in two chilean marine sediments. MARINE POLLUTION BULLETIN 2012; 64:2135-2145. [PMID: 22921896 DOI: 10.1016/j.marpolbul.2012.07.042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Revised: 07/10/2012] [Accepted: 07/19/2012] [Indexed: 06/01/2023]
Abstract
We studied the abundance and diversity of the sulfate-reducing prokaryotes (SRPs) in two 30-cm marine chilean sediment cores, one with a long-term exposure to copper-mining residues, the other being a non-exposed reference sediment. The abundance of SRPs was quantified by qPCR of the dissimilatory sulfite reductase gene β-subunit (dsrB) and showed that SRPs are sensitive to high copper concentrations, as the mean number of SRPs all along the contaminated sediment was two orders of magnitude lower than in the reference sediment. SRP diversity was analyzed by using the dsrB-sequences-based PCR-DGGE method and constructing gene libraries for dsrB-sequences. Surprisingly, the diversity was comparable in both sediments, with dsrB sequences belonging to Desulfobacteraceae, Syntrophobacteraceae, and Desulfobulbaceae, SRP families previously described in marine sediments, and to a deep branching dsrAB lineage. The hypothesis of the presence of horizontal transfer of copper resistance genes in the microbial population of the polluted sediment is discussed.
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Affiliation(s)
- Ludovic Besaury
- Faculté des Sciences, Université de Rouen, CNRS UMR 6143-M2C, Groupe de Microbiologie, Place Emile Blondel, 76821 Mont Saint Aignan Cedex, France.
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11
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Survival of the fittest: overcoming oxidative stress at the extremes of Acid, heat and metal. Life (Basel) 2012; 2:229-42. [PMID: 25371104 PMCID: PMC4187130 DOI: 10.3390/life2030229] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Revised: 08/14/2012] [Accepted: 08/17/2012] [Indexed: 11/29/2022] Open
Abstract
The habitat of metal respiring acidothermophilic lithoautotrophs is perhaps the most oxidizing environment yet identified. Geothermal heat, sulfuric acid and transition metals contribute both individually and synergistically under aerobic conditions to create this niche. Sulfuric acid and metals originating from sulfidic ores catalyze oxidative reactions attacking microbial cell surfaces including lipids, proteins and glycosyl groups. Sulfuric acid also promotes hydrocarbon dehydration contributing to the formation of black “burnt” carbon. Oxidative reactions leading to abstraction of electrons is further impacted by heat through an increase in the proportion of reactant molecules with sufficient energy to react. Collectively these factors and particularly those related to metals must be overcome by thermoacidophilic lithoautotrophs in order for them to survive and proliferate. The necessary mechanisms to achieve this goal are largely unknown however mechanistics insights have been gained through genomic studies. This review focuses on the specific role of metals in this extreme environment with an emphasis on resistance mechanisms in Archaea.
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12
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Ochoa-Herrera V, León G, Banihani Q, Field JA, Sierra-Alvarez R. Toxicity of copper(II) ions to microorganisms in biological wastewater treatment systems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2011; 412-413:380-385. [PMID: 22030247 DOI: 10.1016/j.scitotenv.2011.09.072] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2010] [Revised: 09/16/2011] [Accepted: 09/19/2011] [Indexed: 05/31/2023]
Abstract
Copper is an essential element, however, this heavy metal is an inhibitor of microbial activity at relatively low concentrations. The objective of this study was to evaluate the inhibitory effect of copper(II) towards various microbial trophic groups responsible for the removal of organic constituents and nutrients in wastewater treatment processes. The results of the batch bioassays indicated that copper(II) caused severe inhibition of key microbial populations in wastewater treatment systems. Denitrifying bacteria were found to be very sensitive to the presence of copper(II). The concentrations of copper(II) causing 50% inhibition (IC(50)) on the metabolic activity of denitrifiers was 0.95 mg L(-1). Copper was also inhibitory to fermentative bacteria, aerobic glucose-degrading heterotrophs, and nitrifying bacteria (IC(50) values=3.5, 4.6 and 26.5 mg L(-1), respectively). Nonetheless, denitrifying and nitrifying bacteria showed considerable recovery of their metabolic activity after only several days of exposure to high copper levels (up to 25 and 100mg Cu(II) L(-1) for denitrification and nitrification, respectively). The recovery could be due to attenuation of soluble copper or to microbial adaptation.
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Affiliation(s)
- Valeria Ochoa-Herrera
- Department of Chemical and Environmental Engineering, University of Arizona, Tucson, AZ 85721-0011, USA.
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13
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Wu D, Yang Z, Tian G. Inhibitory effects of Cu (II) on fermentative methane production using bamboo wastewater as substrate. JOURNAL OF HAZARDOUS MATERIALS 2011; 195:170-174. [PMID: 21880423 DOI: 10.1016/j.jhazmat.2011.08.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2011] [Revised: 08/01/2011] [Accepted: 08/07/2011] [Indexed: 05/31/2023]
Abstract
The toxic effects of Cu (II) present in bamboo industry wastewater (BIWW) upon its anaerobic biodegradability of organic content were investigated. The analysis through the Modified Gompertz model indicated that the optimum chemical oxygen demand (COD) concentration for digestion was 22,780 mg L(-1) with a maximum R(m) (maximum CH(4) production rate) value of 2.8 mL h(-1), corresponding to a specific methanogenic activity (SMA) of 2.38 mL CH(4) g VSS(-1)h(-1). The inhibitory effects of Cu (II) on cumulative methane production depended on its concentration and contact time. Low concentrations (5 mg L(-1)) of Cu (II) showed a stimulating effect on methanogenesis. Methane was not detected when the Cu (II) concentration was increased beyond 300 mg L(-1). The IC(50) value of Cu (II), the Cu (II) concentration that causes a 50% reduction in the cumulative methane production, was 18.32 mg L(-1) (15.9 mg Cu(II) gVSS(-1)).
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Affiliation(s)
- Donglei Wu
- College of Environmental and Resources, Zhejiang University, Hangzhou 310029, PR China.
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14
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Carbon monoxide as an electron donor for the biological reduction of sulphate. Int J Microbiol 2010; 2010:319527. [PMID: 20628586 PMCID: PMC2901600 DOI: 10.1155/2010/319527] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2009] [Revised: 03/10/2010] [Accepted: 03/31/2010] [Indexed: 11/17/2022] Open
Abstract
Several strains of Gram-negative and Gram-positive sulphate-reducing bacteria (SRB) are able to use carbon monoxide (CO) as a carbon source and electron donor for biological sulphate reduction. These strains exhibit variable resistance to CO toxicity. The most resistant SRB can grow and use CO as an electron donor at concentrations up to 100%, whereas others are already severely inhibited at CO concentrations as low as 1-2%. Here, the utilization, inhibition characteristics, and enzymology of CO metabolism as well as the current state of genomics of CO-oxidizing SRB are reviewed. Carboxydotrophic sulphate-reducing bacteria can be applied for biological sulphate reduction with synthesis gas (a mixture of hydrogen and carbon monoxide) as an electron donor.
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15
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Sokolova TG, Henstra AM, Sipma J, Parshina SN, Stams AJM, Lebedinsky AV. Diversity and ecophysiological features of thermophilic carboxydotrophic anaerobes. FEMS Microbiol Ecol 2009; 68:131-41. [PMID: 19573196 DOI: 10.1111/j.1574-6941.2009.00663.x] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Both natural and anthropogenic hot environments contain appreciable levels of carbon monoxide (CO). Anaerobic microbial communities play an important role in CO conversion in such environments. CO is involved in a number of redox reactions. It is biotransformed by thermophilic methanogens, acetogens, hydrogenogens, sulfate reducers, and ferric iron reducers. Most thermophilic CO-oxidizing anaerobes have diverse metabolic capacities, but two hydrogenogenic species are obligate carboxydotrophs. Among known thermophilic carboxydotrophic anaerobes, hydrogenogens are most numerous, and based on available data they are most important in CO biotransformation in hot environments.
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Affiliation(s)
- Tatyana G Sokolova
- Winogradsky Institute of Microbiology, Russian Academy of Sciences, Prospect 60 Let Oktyabrya 7/2, Moscow, Russia.
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16
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Gough HL, Dahl AL, Tribou E, Noble PA, Gaillard JF, Stahl DA. Elevated sulfate reduction in metal-contaminated freshwater lake sediments. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2008jg000738] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Heidi L. Gough
- Department of Civil and Environmental Engineering; Northwestern University; Evanston Illinois USA
- Department of Civil and Environmental Engineering; University of Washington; Seattle Washington USA
| | - Amy L. Dahl
- Department of Civil and Environmental Engineering; Northwestern University; Evanston Illinois USA
| | - Erik Tribou
- Department of Civil and Environmental Engineering; University of Washington; Seattle Washington USA
| | - Peter A. Noble
- Department of Civil and Environmental Engineering; University of Washington; Seattle Washington USA
| | - Jean-François Gaillard
- Department of Civil and Environmental Engineering; Northwestern University; Evanston Illinois USA
| | - David A. Stahl
- Department of Civil and Environmental Engineering; University of Washington; Seattle Washington USA
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17
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Zukauskaite A, Jakubauskaite V, Belous O, Ambrazaitiene D, Stasiskiene Z. Impact of heavy metals on the oil products biodegradation process. WASTE MANAGEMENT & RESEARCH : THE JOURNAL OF THE INTERNATIONAL SOLID WASTES AND PUBLIC CLEANSING ASSOCIATION, ISWA 2008; 26:500-507. [PMID: 19039065 DOI: 10.1177/0734242x08089838] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Oil products continue to be used as a principal source of energy. Wide-scale production, transport, global use and disposal of petroleum have made them major contaminants in prevalence and quantity in the environment. In accidental spills, actions are taken to remove or remediate or recover the contaminants immediately, especially if they occur in environmentally sensitive areas, for example, in coastal zones. Traditional methods to cope with oil spills are confined to physical containment. Biological methods can have an advantage over the physical-chemical treatment regimes in removing spills in situ as they offer biodegradation of oil fractions by the micro-organisms. Recently, biological methods have been known to play a significant role in bioremediation of oil-polluted coastal areas. Such systems are likely to be of significance in the effective management of sensitive coastal ecosystems chronically subjected to oil spillage. For this reason the aim of this paper is to present an impact of Mn, Cu, Co and Mo quantities on oil biodegradation effectiveness in coastal soil and to determine the relationship between metal concentrations and degradation of two oil products (black oil and diesel fuel). Soil was collected in the Baltic Sea coastal zone oil products degradation area (Klaipeda, Lithuania). The experiment consisted of two parts: study on the influence of micro-elements on the oil product biodegradation process; and analysis of the influence of metal concentration on the number of HDMs. The analysis performed and results obtained address the following areas: impact of metal on a population of hydrocarbon degrading micro-organisms, impact of metals on residual concentrations of oil products, influence of metals on the growth of micro-organisms, inter-relation of metal concentrations with degradation rates. Statistical analysis was made using ;Statgraphics plus' software. The influence of metals on the growth of micro-organisms, the biodegradation process rate and the oil product concentrations were evaluated with analysis of variance. The impact has been investigated separately and synergetically.
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Affiliation(s)
- Audrone Zukauskaite
- Department of Technological Processes, Marine Engineering Faculty, Klaipeda University, Lithuania
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18
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Moser DP, Gihring TM, Brockman FJ, Fredrickson JK, Balkwill DL, Dollhopf ME, Lollar BS, Pratt LM, Boice E, Southam G, Wanger G, Baker BJ, Pfiffner SM, Lin LH, Onstott TC. Desulfotomaculum and Methanobacterium spp. dominate a 4- to 5-kilometer-deep fault. Appl Environ Microbiol 2006; 71:8773-83. [PMID: 16332873 PMCID: PMC1317344 DOI: 10.1128/aem.71.12.8773-8783.2005] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Alkaline, sulfidic, 54 to 60 degrees C, 4 to 53 million-year-old meteoric water emanating from a borehole intersecting quartzite-hosted fractures >3.3 km beneath the surface supported a microbial community dominated by a bacterial species affiliated with Desulfotomaculum spp. and an archaeal species related to Methanobacterium spp. The geochemical homogeneity over the 650-m length of the borehole, the lack of dividing cells, and the absence of these microorganisms in mine service water support an indigenous origin for the microbial community. The coexistence of these two microorganisms is consistent with a limiting flux of inorganic carbon and SO4(2-) in the presence of high pH, high concentrations of H2 and CH4, and minimal free energy for autotrophic methanogenesis. Sulfide isotopic compositions were highly enriched, consistent with microbial SO4(2-) reduction under hydrologic isolation. An analogous microbial couple and similar abiogenic gas chemistry have been reported recently for hydrothermal carbonate vents of the Lost City near the Mid-Atlantic Ridge (D. S. Kelly et al., Science 307:1428-1434, 2005), suggesting that these features may be common to deep subsurface habitats (continental and marine) bearing this geochemical signature. The geochemical setting and microbial communities described here are notably different from microbial ecosystems reported for shallower continental subsurface environments.
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Affiliation(s)
- Duane P Moser
- Environmental Microbiology Group, Pacific Northwest National Laboratory, Richland, Washington 99352, USA.
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Karri S, Sierra-Alvarez R, Field JA. Toxicity of copper to acetoclastic and hydrogenotrophic activities of methanogens and sulfate reducers in anaerobic sludge. CHEMOSPHERE 2006; 62:121-7. [PMID: 15936054 DOI: 10.1016/j.chemosphere.2005.04.016] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2004] [Revised: 03/31/2005] [Accepted: 04/06/2005] [Indexed: 05/02/2023]
Abstract
Heavy metals could potentially negatively impact microorganisms in anaerobic sulfate reducing bioreactors. The objective of this is study was to evaluate the inhibitory effect of copper to acetoclastic and hydrogenotrophic activities of methanogens and sulfate reducers in sludge obtained from a full-scale sulfate reducing bioreactor. The 50% inhibiting concentration (50%IC) of Cu(2+) to acetoclastic and hydrogenotrophic methanogens was 20.7 and 8.9 mg l(-1), respectively. The 50%IC of Cu(2+) to acetoclastic sulfate reduction was 32.3 mg l(-1). The hydrogenotrophic sulfate reducers were only inhibited by 27% at the highest concentration of Cu(2+) tested, 200 mg l(-1), indicating a high level of tolerance. The soluble Cu(2+) was observed to decrease rapidly in both the methanogenic and sulfate reducing assays. The highest level of decrease was observed in the hydrogenotrophic sulfate reducing assay which was over 99% in 5h. The results of this study indicate that sulfate reducing biotechnologies would be robust at relatively high inlet concentrations of Cu(2+).
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Affiliation(s)
- Srilakshmi Karri
- Department of Chemical and Environmental Engineering, University of Arizona, P.O. Box 210011, Tucson, AZ, United States
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20
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Parshina SN, Sipma J, Nakashimada Y, Henstra AM, Smidt H, Lysenko AM, Lens PNL, Lettinga G, Stams AJM. Desulfotomaculum carboxydivorans sp. nov., a novel sulfate-reducing bacterium capable of growth at 100% CO. Int J Syst Evol Microbiol 2005; 55:2159-2165. [PMID: 16166725 DOI: 10.1099/ijs.0.63780-0] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A moderately thermophilic, anaerobic, chemolithoheterotrophic, sulfate-reducing bacterium, strain CO-1-SRB(T), was isolated from sludge from an anaerobic bioreactor treating paper mill wastewater. Cells were Gram-positive, motile, spore-forming rods. The temperature range for growth was 30-68 degrees C, with an optimum at 55 degrees C. The NaCl concentration range for growth was 0-17 g l(-1); there was no change in growth rate until the NaCl concentration reached 8 g l(-1). The pH range for growth was 6.0-8.0, with an optimum of 6.8-7.2. The bacterium could grow with 100% CO in the gas phase. With sulfate, CO was converted to H(2) and CO(2) and part of the H(2) was used for sulfate reduction; without sulfate, CO was completely converted to H(2) and CO(2). With sulfate, strain CO-1-SRB(T) utilized H(2)/CO(2), pyruvate, glucose, fructose, maltose, lactate, serine, alanine, ethanol and glycerol. The strain fermented pyruvate, lactate, glucose and fructose. Yeast extract was necessary for growth. Sulfate, thiosulfate and sulfite were used as electron acceptors, whereas elemental sulfur and nitrate were not. A phylogenetic analysis of 16S rRNA gene sequences placed strain CO-1-SRB(T) in the genus Desulfotomaculum, closely resembling Desulfotomaculum nigrificans DSM 574(T) and Desulfotomaculum sp. RHT-3 (99 and 100% similarity, respectively). However, the latter strains were completely inhibited above 20 and 50% CO in the gas phase, respectively, and were unable to ferment CO, lactate or glucose in the absence of sulfate. DNA-DNA hybridization of strain CO-1-SRB(T) with D. nigrificans and Desulfotomaculum sp. RHT-3 showed 53 and 60% relatedness, respectively. On the basis of phylogenetic and physiological features, it is suggested that strain CO-1-SRB(T) represents a novel species within the genus Desulfotomaculum, for which the name Desulfotomaculum carboxydivorans is proposed. This is the first description of a sulfate-reducing micro-organism that is capable of growth under an atmosphere of pure CO with and without sulfate. The type strain is CO-1-SRB(T) (=DSM 14880(T)=VKM B-2319(T)).
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Affiliation(s)
- Sofiya N Parshina
- Laboratory of Microbiology of Anthropogenic Environments, Winogradsky Institute of Microbiology, Russian Academy of Sciences, Prospect 60 let Oktyabrya 7 b. 2, Moscow, Russia
| | - Jan Sipma
- Sub-Department of Environmental Technology, Wageningen University, Bomenweg 2, PO Box 8129, 6700 EV Wageningen, The Netherlands
| | - Yutaka Nakashimada
- Laboratory of Microbiology, Wageningen University, Hesselink van Suchtelenweg 4, 6703 CT Wageningen, The Netherlands
| | - Anne Meint Henstra
- Laboratory of Microbiology, Wageningen University, Hesselink van Suchtelenweg 4, 6703 CT Wageningen, The Netherlands
| | - Hauke Smidt
- Laboratory of Microbiology, Wageningen University, Hesselink van Suchtelenweg 4, 6703 CT Wageningen, The Netherlands
| | - Anatoly M Lysenko
- Laboratory of Microbiology of Anthropogenic Environments, Winogradsky Institute of Microbiology, Russian Academy of Sciences, Prospect 60 let Oktyabrya 7 b. 2, Moscow, Russia
| | - Piet N L Lens
- Sub-Department of Environmental Technology, Wageningen University, Bomenweg 2, PO Box 8129, 6700 EV Wageningen, The Netherlands
| | - Gatze Lettinga
- Sub-Department of Environmental Technology, Wageningen University, Bomenweg 2, PO Box 8129, 6700 EV Wageningen, The Netherlands
| | - Alfons J M Stams
- Laboratory of Microbiology, Wageningen University, Hesselink van Suchtelenweg 4, 6703 CT Wageningen, The Netherlands
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Hollingsworth J, Sierra-Alvarez R, Zhou M, Ogden KL, Field JA. Anaerobic biodegradability and methanogenic toxicity of key constituents in copper chemical mechanical planarization effluents of the semiconductor industry. CHEMOSPHERE 2005; 59:1219-28. [PMID: 15857633 DOI: 10.1016/j.chemosphere.2004.11.067] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2004] [Revised: 11/22/2004] [Accepted: 11/25/2004] [Indexed: 05/02/2023]
Abstract
Copper chemical mechanical planarization (CMP) effluents can account for 30-40% of the water discharge in semiconductor manufacturing. CMP effluents contain high concentrations of soluble copper and a complex mixture of organic constituents. The aim of this study is to perform a preliminary assessment of the treatability of CMP effluents in anaerobic sulfidogenic bioreactors inoculated with anaerobic granular sludge by testing individual compounds expected in the CMP effluents. Of all the compounds tested (copper (II), benzotriazoles, polyethylene glycol (M(n) 300), polyethylene glycol (M(n) 860) monooleate, perfluoro-1-octane sulfonate, citric acid, oxalic acid and isopropanol) only copper was found to be inhibitory to methanogenic activity at the concentrations tested. Most of the organic compounds tested were biodegradable with the exception of perfluoro-1-octane sulfonate and benzotriazoles under sulfate reducing conditions and with the exception of the same compounds as well as Triton X-100 under methanogenic conditions. The susceptibility of key components in CMP effluents to anaerobic biodegradation combined with their low microbial inhibition suggest that CMP effluents should be amenable to biological treatment in sulfate reducing bioreactors.
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Affiliation(s)
- Jeremy Hollingsworth
- Department of Chemical and Environmental Engineering, University of Arizona, P.O. Box 210011, Tucson, AZ 85721-0011, USA
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Mori K, Sparling R, Hatsu M, Takamizawa K. Quantification and diversity of the archaeal community in a landfill site. Can J Microbiol 2003; 49:28-36. [PMID: 12674345 DOI: 10.1139/w03-006] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
At a sea-based, solid waste disposal site, methanogenic organisms were quantified by molecular approaches. The samples collected for analysis were from anaerobic leachate of the landfill site. When the DNA extracted from the leachate was examined by a quantitative PCR method using domain-specific 16S rDNA primers, archaeal DNA represented 2-3% of the total extracted DNA. On the basis of cloning and sequence comparison of the archaeal PCR products, more than half of the sequences belonged to Euryarchaeota, particularly relatives of the genus Methanosaeta. The cloning analysis suggested that the majority of methane emitted from the landfill site originated from the acetate-utilizing Methanosaeta.
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Affiliation(s)
- Koji Mori
- Department of Bioprocessing, Faculty of Agriculture, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
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Riis V, Babel W, Pucci OH. Influence of heavy metals on the microbial degradation of diesel fuel. CHEMOSPHERE 2002; 49:559-568. [PMID: 12430643 DOI: 10.1016/s0045-6535(02)00386-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The degradation of diesel fuel by a microbial community from a soil polluted by heavy metals (h.m.) in the presence of Cu, Ni, Zn, Pb, Cd, Hg and Cr (as chromate) was investigated. Experiments were conducted with soil slurries and the extracted community in liquid cultivation. The concentrations applied were in the sub-mM and mM range. Whereas the slurries displayed no significant effect, degradation in liquid culture was increasingly inhibited by higher metal concentrations. The course of degradation in suspension was demonstrated by the oxygen consumption. The order of toxicity was found to be: Hg > Cr(VI) > Cu > Cd > Ni > Pb > Zn. The absence of any effect for slurries was due to the non-availability of the metals in the soil, and to precipitation or adsorption to the soil in the case of amendment. The paper also includes results on the availability of h.m. and changes to the community after exposure.
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Affiliation(s)
- Volker Riis
- Department of Environmental Microbiology, UFZ Centre for Environmental Research Leipzig-Halle GmbH, Leipzig, Germany.
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