1
|
Shi H, Jiang X, Wen X, Hou C, Chen D, Mu Y, Shen J. Enhanced azo dye reduction at semiconductor-microbe interface: The key role of semiconductor band structure. WATER RESEARCH 2024; 248:120846. [PMID: 37952328 DOI: 10.1016/j.watres.2023.120846] [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: 03/26/2023] [Revised: 11/02/2023] [Accepted: 11/07/2023] [Indexed: 11/14/2023]
Abstract
Low-energy environmental remediation could be achieved by biocatalysis with assistance of light-excited semiconductor, in which the energy band structure of semiconductor has a significant influence on the metabolic process and electron transfer of microbes. In this study, direct Z-scheme and type II heterojunction semiconductor with different energy band structure were successfully synthesized for constructing semiconductor-microbe interface with Shewanella oneidensis MR-1 to achieve acid orange7 (AO7) biodegradation. UV-vis diffuse reflection spectroscopy, photoluminescence spectra and photoelectrochemical analysis revealed that the direct Z-scheme heterojunction semiconductor had stronger reduction power and faster separation of photoelectron-hole, which was beneficial for the AO7 biodegradation at semiconductor-microbe interface. Riboflavin was also involved in electron transfer between the semiconductor and microbes during AO7 reduction. Transcriptome results illustrated that functional gene expression of Shewanella oneidensis MR-1 was upregulated significantly with photo-stimulation of direct Z-scheme semiconductor, and Mtr pathway and conductive pili played the important roles in the photoelectron utilization by Shewanella oneidensis MR-1. This work is expected to provide alternative ideas for designing semiconductor-microbial interface with efficient electron transfer and broadening their applications in bioremediation.
Collapse
Affiliation(s)
- Hefei Shi
- Key Laboratory of Environmental Remediation and Ecological Health, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China; School of Resources and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, China
| | - Xinbai Jiang
- Key Laboratory of Environmental Remediation and Ecological Health, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Xiaojiao Wen
- Key Laboratory of Environmental Remediation and Ecological Health, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Cheng Hou
- Key Laboratory of Environmental Remediation and Ecological Health, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Dan Chen
- Key Laboratory of Environmental Remediation and Ecological Health, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yang Mu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei 230026, China
| | - Jinyou Shen
- Key Laboratory of Environmental Remediation and Ecological Health, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| |
Collapse
|
2
|
Rastkhah E, Fatemi F, Maghami P. Optimizing the Metal Bioreduction Process in Recombinant Shewanella azerbaijanica Bacteria: A Novel Approach via mtrC Gene Cloning and Nitrate-Reducing Pathway Destruction. Mol Biotechnol 2023:10.1007/s12033-023-00920-x. [PMID: 37917324 DOI: 10.1007/s12033-023-00920-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 09/22/2023] [Indexed: 11/04/2023]
Abstract
Environmental pollution is growing every day in terms of the increase in population, industrialization, and urbanization. Shewanella azerbaijanica is introduced as a highly potent bacterium in metal bioremediation. The mtrC gene was selected as a cloning target to improve electron flux chains in the EET (extracellular electron transfer) pathway. Using the SDM (site-directed mutagenesis) technique, the unique gene assembly featured the mtrC gene sandwiched between two napD/B genes to disrupt the nitrate reduction pathway, which serves as the primary metal reduction competitor. Shew-mtrC gene construction was transferred to expression plasmid pET28a (+) in the expression host bacteria (E. coli BL21 and S. azerbaijanica), in pUC57, cloning plasmid, which was transferred to the cloning host bacteria E. coli Top10 and S. azerbaijanica. All cloning procedures (i.e., synthesis, insertion, transformation, cloning, and protein expression) were verified and confirmed by precise tests. ATR-FTIR analysis, CD, western blotting, affinity chromatography, SDS-PAGE, and other techniques were used to confirm the expression and structure of the MtrC protein. The genome sequence and primers were designed according to the submitted Shewanella oneidensis MR-1 genome, the most similar bacteria to this native species. The performance of recombinant S. azerbaijanica bacterium in metal bioremediation, as sustainable strategy, has to be verified by more research.
Collapse
Affiliation(s)
- Elham Rastkhah
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Faezeh Fatemi
- Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, Tehran, Iran.
| | - Parvaneh Maghami
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| |
Collapse
|
3
|
Medin S, Schmitz AM, Pian B, Mini K, Reid MC, Holycross M, Gazel E, Wu M, Barstow B. Genomic characterization of rare earth binding by Shewanella oneidensis. Sci Rep 2023; 13:15975. [PMID: 37749198 PMCID: PMC10520059 DOI: 10.1038/s41598-023-42742-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 09/14/2023] [Indexed: 09/27/2023] Open
Abstract
Rare earth elements (REE) are essential ingredients of sustainable energy technologies, but separation of individual REE is one of the hardest problems in chemistry today. Biosorption, where molecules adsorb to the surface of biological materials, offers a sustainable alternative to environmentally harmful solvent extractions currently used for separation of rare earth elements (REE). The REE-biosorption capability of some microorganisms allows for REE separations that, under specialized conditions, are already competitive with solvent extractions, suggesting that genetic engineering could allow it to leapfrog existing technologies. To identify targets for genomic improvement we screened 3,373 mutants from the whole genome knockout collection of the known REE-biosorbing microorganism Shewanella oneidensis MR-1. We found 130 genes that increased biosorption of the middle REE europium, and 112 that reduced it. We verified biosorption changes from the screen for a mixed solution of three REE (La, Eu, Yb) using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) in solution conditions with a range of ionic strengths and REE concentrations. We identified 18 gene ontologies and 13 gene operons that make up key systems that affect biosorption. We found, among other things, that disruptions of a key regulatory component of the arc system (hptA), which regulates cellular response to anoxic environments and polysaccharide biosynthesis related genes (wbpQ, wbnJ, SO_3183) consistently increase biosorption across all our solution conditions. Our largest total biosorption change comes from our SO_4685, a capsular polysaccharide (CPS) synthesis gene, disruption of which results in an up to 79% increase in biosorption; and nusA, a transcriptional termination/anti-termination protein, disruption of which results in an up to 35% decrease in biosorption. Knockouts of glnA, pyrD, and SO_3183 produce small but significant increases (≈ 1%) in relative biosorption affinity for ytterbium over lanthanum in multiple solution conditions tested, while many other genes we explored have more complex binding affinity changes. Modeling suggests that while these changes to lanthanide biosorption selectivity are small, they could already reduce the length of repeated enrichment process by up to 27%. This broad exploratory study begins to elucidate how genetics affect REE-biosorption by S. oneidensis, suggests new areas of investigation for better mechanistic understanding of the membrane chemistry involved in REE binding, and offer potential targets for improving biosorption and separation of REE by genetic engineering.
Collapse
Affiliation(s)
- Sean Medin
- Department of Biological and Environmental Engineering, Cornell University, Cornell University, 228 Riley-Robb Hall, Ithaca, NY, 14853, USA
| | - Alexa M Schmitz
- Department of Biological and Environmental Engineering, Cornell University, Cornell University, 228 Riley-Robb Hall, Ithaca, NY, 14853, USA
| | - Brooke Pian
- Department of Biological and Environmental Engineering, Cornell University, Cornell University, 228 Riley-Robb Hall, Ithaca, NY, 14853, USA
| | - Kuunemuebari Mini
- Department of Sciences and Technology Studies, Cornell University, Ithaca, NY, 14853, USA
| | - Matthew C Reid
- School of Civil and Environmental Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Megan Holycross
- Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, NY, 14853, USA
| | - Esteban Gazel
- Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, NY, 14853, USA
| | - Mingming Wu
- Department of Biological and Environmental Engineering, Cornell University, Cornell University, 228 Riley-Robb Hall, Ithaca, NY, 14853, USA
| | - Buz Barstow
- Department of Biological and Environmental Engineering, Cornell University, Cornell University, 228 Riley-Robb Hall, Ithaca, NY, 14853, USA.
| |
Collapse
|
4
|
Insoluble carbonaceous materials as electron shuttles enhance the anaerobic/anoxic bioremediation of redox pollutants: Recent advances. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.06.064] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
5
|
Condition-Specific Molecular Network Analysis Revealed That Flagellar Proteins Are Involved in Electron Transfer Processes of Shewanella piezotolerans WP3. Genet Res (Camb) 2021; 2021:9953783. [PMID: 34456634 PMCID: PMC8371737 DOI: 10.1155/2021/9953783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 05/28/2021] [Accepted: 07/20/2021] [Indexed: 12/01/2022] Open
Abstract
Because of the ability to metabolize a large number of electron acceptors such as nitrate, nitrite, fumarate, and metal oxides, Shewanella species have attracted much attention in recent years. Generally, the use of these electron acceptors is mainly achieved through electron transfer proteins and their interactions which will dynamically change across different environmental conditions in cells. Therefore, functional analysis of condition-specific molecular networks can reveal biological information on electron transfer processes. By integrating expression data and molecular networks, we constructed condition-specific molecular networks for Shewanella piezotolerans WP3. We then identified condition-specific key genes and studied their potential functions with an emphasis on their roles in electron transfer processes. Functional module analysis showed that different flagellar assembly modules appeared under these conditions and suggested that flagellar proteins are important for these conditions. We also identified the electron transfer modules underlying these various environmental conditions. The present results could help with screening electron transfer genes and understanding electron transfer processes under various environmental conditions for the Shewanella species.
Collapse
|
6
|
Lebov JF, Bohannan BJM. Msh Pilus Mutations Increase the Ability of a Free-Living Bacterium to Colonize a Piscine Host. Genes (Basel) 2021; 12:genes12020127. [PMID: 33498301 PMCID: PMC7909257 DOI: 10.3390/genes12020127] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/12/2021] [Accepted: 01/18/2021] [Indexed: 02/07/2023] Open
Abstract
Symbioses between animals and bacteria are ubiquitous. To better understand these relationships, it is essential to unravel how bacteria evolve to colonize hosts. Previously, we serially passaged the free-living bacterium, Shewanella oneidensis, through the digestive tracts of germ-free larval zebrafish (Danio rerio) to uncover the evolutionary changes involved in the initiation of a novel symbiosis with a vertebrate host. After 20 passages, we discovered an adaptive missense mutation in the mshL gene of the msh pilus operon, which improved host colonization, increased swimming motility, and reduced surface adhesion. In the present study, we determined that this mutation was a loss-of-function mutation and found that it improved zebrafish colonization by augmenting S. oneidensis representation in the water column outside larvae through a reduced association with environmental surfaces. Additionally, we found that strains containing the mshL mutation were able to immigrate into host digestive tracts at higher rates per capita. However, mutant and evolved strains exhibited no evidence of a competitive advantage after colonizing hosts. Our results demonstrate that bacterial behaviors outside the host can play a dominant role in facilitating the onset of novel host associations.
Collapse
Affiliation(s)
- Jarrett F. Lebov
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- Department of Biology, Institute of Ecology and Evolution, University of Oregon, Eugene, OR 97403-5289, USA;
- Correspondence:
| | - Brendan J. M. Bohannan
- Department of Biology, Institute of Ecology and Evolution, University of Oregon, Eugene, OR 97403-5289, USA;
| |
Collapse
|
7
|
Phenotypic Parallelism during Experimental Adaptation of a Free-Living Bacterium to the Zebrafish Gut. mBio 2020; 11:mBio.01519-20. [PMID: 32817106 PMCID: PMC7439477 DOI: 10.1128/mbio.01519-20] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Although animals encounter many bacterial species throughout their lives, only a subset colonize vertebrate digestive tracts, and these bacteria can profoundly influence the health and development of their animal hosts. We used experimental evolution to study a free-living bacterium as it adapts to a novel vertebrate host by serially passaging replicate populations of Shewanella oneidensis through the intestines of larval zebrafish (Danio rerio). Our results demonstrate that adaptation to the zebrafish gut is complex, with multiple evolutionary pathways capable of improving colonization, but that motility plays an important role during the onset of host association. Although animals encounter a plethora of bacterial species throughout their lives, only a subset colonize vertebrate digestive tracts, and these bacteria can profoundly influence the health and development of their animal hosts. However, our understanding of how bacteria initiate symbioses with animal hosts remains underexplored, and this process is central to the assembly and function of gut bacterial communities. Therefore, we used experimental evolution to study a free-living bacterium as it adapts to a novel vertebrate host by serially passaging replicate populations of Shewanella oneidensis through the intestines of larval zebrafish (Danio rerio). After approximately 200 bacterial generations, isolates from evolved populations improved their ability to colonize larval zebrafish during competition against their unpassaged ancestor. Genome sequencing revealed unique sets of mutations in the two evolved isolates exhibiting the highest mean competitive fitness. One isolate exhibited increased swimming motility and decreased biofilm formation compared to the ancestor, and we identified a missense mutation in the mannose-sensitive hemagglutinin pilus operon that is sufficient to increase fitness and reproduce these phenotypes. The second isolate exhibited enhanced swimming motility but unchanged biofilm formation, and here the genetic basis for adaptation is less clear. These parallel enhancements in motility and fitness resemble the behavior of a closely related Shewanella strain previously isolated from larval zebrafish and suggest phenotypic convergence with this isolate. Our results demonstrate that adaptation to the zebrafish gut is complex, with multiple evolutionary pathways capable of improving colonization, but that motility plays an important role during the onset of host association.
Collapse
|
8
|
Denise R, Abby SS, Rocha EPC. Diversification of the type IV filament superfamily into machines for adhesion, protein secretion, DNA uptake, and motility. PLoS Biol 2019; 17:e3000390. [PMID: 31323028 PMCID: PMC6668835 DOI: 10.1371/journal.pbio.3000390] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 07/31/2019] [Accepted: 07/03/2019] [Indexed: 12/21/2022] Open
Abstract
Processes of molecular innovation require tinkering and shifting in the function of existing genes. How this occurs in terms of molecular evolution at long evolutionary scales remains poorly understood. Here, we analyse the natural history of a vast group of membrane-associated molecular systems in Bacteria and Archaea-the type IV filament (TFF) superfamily-that diversified in systems involved in flagellar or twitching motility, adhesion, protein secretion, and DNA uptake. The phylogeny of the thousands of detected systems suggests they may have been present in the last universal common ancestor. From there, two lineages-a bacterial and an archaeal-diversified by multiple gene duplications, gene fissions and deletions, and accretion of novel components. Surprisingly, we find that the 'tight adherence' (Tad) systems originated from the interkingdom transfer from Archaea to Bacteria of a system resembling the 'EppA-dependent' (Epd) pilus and were associated with the acquisition of a secretin. The phylogeny and content of ancestral systems suggest that initial bacterial pili were engaged in cell motility and/or DNA uptake. In contrast, specialised protein secretion systems arose several times independently and much later in natural history. The functional diversification of the TFF superfamily was accompanied by genetic rearrangements with implications for genetic regulation and horizontal gene transfer: systems encoded in fewer loci were more frequently exchanged between taxa. This may have contributed to their rapid evolution and spread across Bacteria and Archaea. Hence, the evolutionary history of the superfamily reveals an impressive catalogue of molecular evolution mechanisms that resulted in remarkable functional innovation and specialisation from a relatively small set of components.
Collapse
Affiliation(s)
- Rémi Denise
- Microbial Evolutionary Genomics, Institut Pasteur, CNRS, UMR3525, Paris, France
- Sorbonne Université, Collège doctoral, Paris, France
| | - Sophie S. Abby
- Université Grenoble Alpes, CNRS, Grenoble INP, TIMC-IMAG, Grenoble, France
| | - Eduardo P. C. Rocha
- Microbial Evolutionary Genomics, Institut Pasteur, CNRS, UMR3525, Paris, France
| |
Collapse
|
9
|
Gonzalez-Aravena AC, Yunus K, Zhang L, Norling B, Fisher AC. Tapping into cyanobacteria electron transfer for higher exoelectrogenic activity by imposing iron limited growth. RSC Adv 2018; 8:20263-20274. [PMID: 35541668 PMCID: PMC9080828 DOI: 10.1039/c8ra00951a] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 05/14/2018] [Indexed: 11/21/2022] Open
Abstract
The exoelectrogenic capacity of the cyanobacterium Synechococcus elongatus PCC7942 was studied in iron limited growth in order to establish conditions favouring extracellular electron transfer in cyanobacteria for photo-bioelectricity generation. Investigation into extracellular reduction of ferricyanide by Synechococcus elongatus PCC7942 demonstrated enhanced capability for the iron limited conditions in comparison to the iron sufficient conditions. Furtheremore, the significance of pH showed that higher rates of ferricyanide reduction occurred at pH 7, with a 2.7-fold increase with respect to pH 9.5 for iron sufficient cultures and 24-fold increase for iron limited cultures. The strategy presented induced exoelectrogenesis driven mainly by photosynthesis and an estimated redirection of the 28% of electrons from photosynthetic activity was achieved by the iron limited conditions. In addition, ferricyanide reduction in the dark by iron limited cultures also presented a significant improvement, with a 6-fold increase in comparison to iron sufficient cultures. Synechococcus elongatus PCC7942 ferricyanide reduction rates are unprecedented for cyanobacteria and they are comparable to those of microalgae. The redox activity of biofilms directly on ITO-coated glass, in the absence of any artificial mediator, was also enhanced under the iron limited conditions, implying that iron limitation increased exoelectrogenesis at the outer membrane level. Cyclic voltammetry of Synechococcus elongatus PCC7942 biofilms on ITO-coated glass showed a midpoint potential around 0.22 V vs. Ag/AgCl and iron limited biofilms had the capability to sustain currents in a saturated-like fashion. The present work proposes an iron related exoelectrogenic capacity of Synechococcus elongatus PCC7942 and sets a starting point for the study of this strain in order to improve photo-bioelectricity and dark-bioelectricity generation by cyanobacteria, including more sustainable mediatorless systems. Iron limited growth induces unprecedented rates of extracellular electron transport in cyanobacteria delivering enhanced photosynthesis driven bioelectricity in electrochemical platforms.![]()
Collapse
Affiliation(s)
| | - K. Yunus
- Department of Chemical Engineering and Biotechnology
- University of Cambridge
- Cambridge
- UK
| | - L. Zhang
- School of Biological Sciences
- Nanyang Technological University
- Singapore
| | - B. Norling
- School of Biological Sciences
- Nanyang Technological University
- Singapore
| | - A. C. Fisher
- Department of Chemical Engineering and Biotechnology
- University of Cambridge
- Cambridge
- UK
| |
Collapse
|
10
|
Saratale GD, Saratale RG, Shahid MK, Zhen G, Kumar G, Shin HS, Choi YG, Kim SH. A comprehensive overview on electro-active biofilms, role of exo-electrogens and their microbial niches in microbial fuel cells (MFCs). CHEMOSPHERE 2017; 178:534-547. [PMID: 28351012 DOI: 10.1016/j.chemosphere.2017.03.066] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 03/14/2017] [Accepted: 03/16/2017] [Indexed: 06/06/2023]
Abstract
Microbial fuel cells (MFCs) are biocatalyzed systems which can drive electrical energy by directly converting chemical energy using microbial biocatalyst and are considered as one of the important propitious technologies for sustainable energy production. Much research on MFCs experiments is under way with great potential to become an alternative to produce clean energy from renewable waste. MFCs have been one of the most promising technologies for generating clean energy industry in the future. This article summarizes the important findings in electro-active biofilm formation and the role of exo-electrogens in electron transfer in MFCs. This study provides and brings special attention on the effects of various operating and biological parameters on the biofilm formation in MFCs. In addition, it also highlights the significance of different molecular techniques used in the microbial community analysis of electro-active biofilm. It reviews the challenges as well as the emerging opportunities required to develop MFCs at commercial level, electro-active biofilms and to understand potential application of microbiological niches are also depicted. Thus, this review is believed to widen the efforts towards the development of electro-active biofilm and will provide the research directions to overcome energy and environmental challenges.
Collapse
Affiliation(s)
- Ganesh Dattatraya Saratale
- Department of Food Science and Biotechnology, Dongguk University-Seoul, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
| | - Rijuta Ganesh Saratale
- Research Institute of Biotechnology and Medical Converged Science, Dongguk University-Seoul, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
| | | | - Guangyin Zhen
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Dongchuan Rd. 500, Shanghai 200241, China
| | - Gopalakrishnan Kumar
- Sustainable Management of Natural Resources and Environment Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
| | - Han-Seung Shin
- Department of Food Science and Biotechnology, Dongguk University-Seoul, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
| | - Young-Gyun Choi
- Department of Environmental Engineering, Daegu university, Gyeongsan, Republic of Korea
| | - Sang-Hyoun Kim
- Department of Environmental Engineering, Daegu university, Gyeongsan, Republic of Korea
| |
Collapse
|
11
|
Sudek LA, Wanger G, Templeton AS, Staudigel H, Tebo BM. Submarine Basaltic Glass Colonization by the Heterotrophic Fe(II)-Oxidizing and Siderophore-Producing Deep-Sea Bacterium Pseudomonas stutzeri VS-10: The Potential Role of Basalt in Enhancing Growth. Front Microbiol 2017; 8:363. [PMID: 28344573 PMCID: PMC5345036 DOI: 10.3389/fmicb.2017.00363] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 02/21/2017] [Indexed: 11/13/2022] Open
Abstract
Phylogenetically and metabolically diverse bacterial communities have been found in association with submarine basaltic glass surfaces. The driving forces behind basalt colonization are for the most part unknown. It remains ambiguous if basalt provides ecological advantages beyond representing a substrate for surface colonization, such as supplying nutrients and/or energy. Pseudomonas stutzeri VS-10, a metabolically versatile bacterium isolated from Vailulu'u Seamount, was used as a model organism to investigate the physiological responses observed when biofilms are established on basaltic glasses. In Fe-limited heterotrophic media, P. stutzeri VS-10 exhibited elevated growth in the presence of basaltic glass. Diffusion chamber experiments demonstrated that physical attachment or contact of soluble metabolites such as siderophores with the basaltic glass plays a pivotal role in this process. Electrochemical data indicated that P. stutzeri VS-10 is able to use solid substrates (electrodes) as terminal electron donors and acceptors. Siderophore production and heterotrophic Fe(II) oxidation are discussed as potential mechanisms enhancing growth of P. stutzeri VS-10 on glass surfaces. In correlation with that we discuss the possibility that metabolic versatility could represent a common and beneficial physiological trait in marine microbial communities being subject to oligotrophic and rapidly changing deep-sea conditions.
Collapse
Affiliation(s)
- Lisa A Sudek
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla CA, USA
| | - Greg Wanger
- Jet Propulsion Laboratory, California Institute of Technology, University of Southern California, Pasadena CA, USA
| | - Alexis S Templeton
- Department of Geological Sciences, University of Colorado Boulder, Boulder CO, USA
| | - Hubert Staudigel
- Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, University of California, San Diego, La Jolla CA, USA
| | - Bradley M Tebo
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla CA, USA
| |
Collapse
|
12
|
|
13
|
Fowler GJS, Pereira-Medrano AG, Jaffe S, Pasternak G, Pham TK, Ledezma P, Hall STE, Ieropoulos IA, Wright PC. An iTRAQ characterisation of the role of TolC during electron transfer from Shewanella oneidensis MR-1. Proteomics 2016; 16:2764-2775. [PMID: 27599463 DOI: 10.1002/pmic.201500538] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 07/20/2016] [Accepted: 09/02/2016] [Indexed: 02/04/2023]
Abstract
Anodophilic bacteria have the ability to generate electricity in microbial fuel cells (MFCs) by extracellular electron transfer to the anode. We investigated the anode-specific responses of Shewanella oneidensis MR-1, an exoelectroactive Gammaproteobacterium, using for the first time iTRAQ and 2D-LC MS/MS driven membrane proteomics to compare protein abundances in S. oneidensis when generating power in MFCs, and growing in a continuous culture. The regulated dataset produced was enriched in membrane proteins. Proteins shown to be more abundant in anaerobic electroactive anodic cells included efflux pump TolC and an uncharacterised tetratricopeptide repeat (TPR) protein, whilst the TonB2 system and associated uncharacterised proteins such as TtpC2 and DUF3450 were more abundant in microaerobic planktonic cells. In order to validate the iTRAQ data, the functional role for TolC was examined using a δTolC knockout mutant of S. oneidensis. Possible roles for the uncharacterised proteins were identified using comparative bioinformatics. We demonstrate that employing an insoluble extracellular electron acceptor requires multiple proteins involved in cell surface properties. All MS and processed data are available via ProteomeXchange with identifier PXD004090.
Collapse
Affiliation(s)
- Gregory J S Fowler
- Biological and Environmental Systems Group, ChELSI Institute, Department of Chemical and Biological Engineering, The University of Sheffield, Sheffield, UK
| | - Ana G Pereira-Medrano
- Biological and Environmental Systems Group, ChELSI Institute, Department of Chemical and Biological Engineering, The University of Sheffield, Sheffield, UK
| | - Stephen Jaffe
- Biological and Environmental Systems Group, ChELSI Institute, Department of Chemical and Biological Engineering, The University of Sheffield, Sheffield, UK
| | - Grzegorz Pasternak
- Bristol Robotics Laboratory, Universities of Bristol and of the West of England, , Frenchay Campus, Bristol, UK
| | - Trong Khoa Pham
- Biological and Environmental Systems Group, ChELSI Institute, Department of Chemical and Biological Engineering, The University of Sheffield, Sheffield, UK
| | - Pablo Ledezma
- Bristol Robotics Laboratory, Universities of Bristol and of the West of England, , Frenchay Campus, Bristol, UK
| | - Simon T E Hall
- Biological and Environmental Systems Group, ChELSI Institute, Department of Chemical and Biological Engineering, The University of Sheffield, Sheffield, UK
| | - Ioannis A Ieropoulos
- Bristol Robotics Laboratory, Universities of Bristol and of the West of England, , Frenchay Campus, Bristol, UK
| | - Phillip C Wright
- Biological and Environmental Systems Group, ChELSI Institute, Department of Chemical and Biological Engineering, The University of Sheffield, Sheffield, UK. .,Faculty of Science, Agriculture & Engineering, Newcastle University, Devonshire Building, Newcastle upon Tyne, UK.
| |
Collapse
|
14
|
Lee CK, Kim AJ, Santos GS, Lai PY, Lee SY, Qiao DF, Anda JD, Young TD, Chen Y, Rowe AR, Nealson KH, Weiss PS, Wong GCL. Evolution of Cell Size Homeostasis and Growth Rate Diversity during Initial Surface Colonization of Shewanella oneidensis. ACS NANO 2016; 10:9183-9192. [PMID: 27571459 DOI: 10.1021/acsnano.6b05123] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Cell size control and homeostasis are fundamental features of bacterial metabolism. Recent work suggests that cells add a constant size between birth and division ("adder" model). However, it is not known how cell size homeostasis is influenced by the existence of heterogeneous microenvironments, such as those during biofilm formation. Shewanella oneidensis MR-1 can use diverse energy sources on a range of surfaces via extracellular electron transport (EET), which can impact growth, metabolism, and size diversity. Here, we track bacterial surface communities at single-cell resolution to show that not only do bacterial motility appendages influence the transition from two- to three-dimensional biofilm growth and control postdivisional cell fates, they strongly impact cell size homeostasis. For every generation, we find that the average growth rate for cells that stay on the surface and continue to divide (nondetaching population) and that for cells that detach before their next division (detaching population) are roughly constant. However, the growth rate distribution is narrow for the nondetaching population, but broad for the detaching population in each generation. Interestingly, the appendage deletion mutants (ΔpilA, ΔmshA-D, Δflg) have significantly broader growth rate distributions than that of the wild type for both detaching and nondetaching populations, which suggests that Shewanella appendages are important for sensing and integrating environmental inputs that contribute to size homeostasis. Moreover, our results suggest multiplexing of appendages for sensing and motility functions contributes to cell size dysregulation. These results can potentially provide a framework for generating metabolic diversity in S. oneidensis populations to optimize EET in heterogeneous environments.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Annette R Rowe
- Department of Earth Sciences & Biological Sciences, University of Southern California , Los Angeles, California 90089, United States
| | - Kenneth H Nealson
- Department of Earth Sciences & Biological Sciences, University of Southern California , Los Angeles, California 90089, United States
| | | | | |
Collapse
|
15
|
Yuan Y, Guo T, Qiu X, Tang J, Huang Y, Zhuang L, Zhou S, Li Z, Guan BO, Zhang X, Albert J. Electrochemical Surface Plasmon Resonance Fiber-Optic Sensor: In Situ Detection of Electroactive Biofilms. Anal Chem 2016; 88:7609-16. [DOI: 10.1021/acs.analchem.6b01314] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yong Yuan
- Guangdong
Key Laboratory of Agricultural Environment Pollution Integrated Control, Guangdong Institute of Eco-Environmental and Soil Sciences, Guangzhou 510650, China
| | - Tuan Guo
- Guangdong
Key Laboratory of Optical Fiber Sensing and Communications, Institute
of Photonics Technology, Jinan University, Guangzhou 510632, China
| | - Xuhui Qiu
- Guangdong
Key Laboratory of Optical Fiber Sensing and Communications, Institute
of Photonics Technology, Jinan University, Guangzhou 510632, China
| | - Jiahuan Tang
- Guangdong
Key Laboratory of Agricultural Environment Pollution Integrated Control, Guangdong Institute of Eco-Environmental and Soil Sciences, Guangzhou 510650, China
| | - Yunyun Huang
- Guangdong
Key Laboratory of Optical Fiber Sensing and Communications, Institute
of Photonics Technology, Jinan University, Guangzhou 510632, China
| | - Li Zhuang
- Guangdong
Key Laboratory of Agricultural Environment Pollution Integrated Control, Guangdong Institute of Eco-Environmental and Soil Sciences, Guangzhou 510650, China
| | - Shungui Zhou
- Guangdong
Key Laboratory of Agricultural Environment Pollution Integrated Control, Guangdong Institute of Eco-Environmental and Soil Sciences, Guangzhou 510650, China
| | - Zhaohui Li
- Guangdong
Key Laboratory of Optical Fiber Sensing and Communications, Institute
of Photonics Technology, Jinan University, Guangzhou 510632, China
| | - Bai-Ou Guan
- Guangdong
Key Laboratory of Optical Fiber Sensing and Communications, Institute
of Photonics Technology, Jinan University, Guangzhou 510632, China
| | - Xuming Zhang
- Department
of Applied Physics, Hong Kong Polytechnic University, Hong Kong, People’s Republic of China
| | - Jacques Albert
- Department
of Electronics, Carleton University, Ottawa K1S5B6, Canada
| |
Collapse
|
16
|
White GF, Edwards MJ, Gomez-Perez L, Richardson DJ, Butt JN, Clarke TA. Mechanisms of Bacterial Extracellular Electron Exchange. Adv Microb Physiol 2016; 68:87-138. [PMID: 27134022 DOI: 10.1016/bs.ampbs.2016.02.002] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The biochemical mechanisms by which microbes interact with extracellular soluble metal ions and insoluble redox-active minerals have been the focus of intense research over the last three decades. The process presents two challenges to the microorganism. Firstly, electrons have to be transported at the cell surface, which in Gram-negative bacteria presents an additional problem of electron transfer across the ~6nm of the outer membrane. Secondly, the electrons must be transferred to or from the terminal electron acceptors or donors. This review covers the known mechanisms that bacteria use to transport electrons across the cell envelope to external electron donors/acceptors. In Gram-negative bacteria, electron transfer across the outer membrane involves the use of an outer membrane β-barrel and cytochrome. These can be in the form of a porin-cytochrome protein, such as Cyc2 of Acidithiobacillus ferrooxidans, or a multiprotein porin-cytochrome complex like MtrCAB of Shewanella oneidensis MR-1. For mineral-respiring organisms, there is the additional challenge of transferring the electrons from the cell to mineral surface. For the strict anaerobe Geobacter sulfurreducens this requires electron transfer through conductive pili to associated cytochrome OmcS that directly reduces Fe(III)oxides, while the facultative anaerobe S. oneidensis MR-1 accomplishes mineral reduction through direct membrane contact, contact through filamentous extensions and soluble flavin shuttles, all of which require the outer membrane cytochromes MtrC and OmcA in addition to secreted flavin.
Collapse
Affiliation(s)
- G F White
- School of Biological Sciences and School of Chemistry, University of East Anglia, Norwich, United Kingdom
| | - M J Edwards
- School of Biological Sciences and School of Chemistry, University of East Anglia, Norwich, United Kingdom
| | - L Gomez-Perez
- School of Biological Sciences and School of Chemistry, University of East Anglia, Norwich, United Kingdom
| | - D J Richardson
- School of Biological Sciences and School of Chemistry, University of East Anglia, Norwich, United Kingdom
| | - J N Butt
- School of Biological Sciences and School of Chemistry, University of East Anglia, Norwich, United Kingdom
| | - T A Clarke
- School of Biological Sciences and School of Chemistry, University of East Anglia, Norwich, United Kingdom.
| |
Collapse
|
17
|
|
18
|
Zhao CE, Chen J, Ding Y, Wang VB, Bao B, Kjelleberg S, Cao B, Loo SCJ, Wang L, Huang W, Zhang Q. Chemically Functionalized Conjugated Oligoelectrolyte Nanoparticles for Enhancement of Current Generation in Microbial Fuel Cells. ACS APPLIED MATERIALS & INTERFACES 2015; 7:14501-14505. [PMID: 26079170 DOI: 10.1021/acsami.5b03990] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Water-soluble conjugated oligoelectrolyte nanoparticles (COE NPs), consisting of a cage-like polyhedral oligomeric silsesquioxanes (POSS) core equipped at each end with pendant groups (oligo(p-phenylenevinylene) electrolyte, OPVE), have been designed and demonstrated as an efficient strategy in increasing the current generation in Escherichia coli microbial fuel cells (MFCs). The as-prepared COE NPs take advantage of the structure of POSS and the optical properties of the pendant groups, OPVE. Confocal laser scanning microscopy showed strong photoluminescence of the stained cells, indicating spontaneous accumulation of COE NPs within cell membranes. Moreover, the electrochemical performance of the COE NPs is superior to that of an established membrane intercommunicating COE, DSSN+ in increasing current generation, suggesting that these COE NPs thus hold great potential to boost the performance of MFCs.
Collapse
Affiliation(s)
- Cui-e Zhao
- †School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Jia Chen
- †School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Yuanzhao Ding
- §Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551, Singapore
| | - Victor Bochuan Wang
- †School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
- §Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551, Singapore
| | | | - Staffan Kjelleberg
- §Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551, Singapore
- ∥School of Biotechnology and Biomolecular Sciences and Centre for Marine Bio-innovation, The University of New South Wales, Sydney New South Wales 2052, Australia
| | - Bin Cao
- §Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551, Singapore
- ⊥School of Civil and Environmental Engineering, Nanyang Technological University, Singapore 637551, Singapore
| | - Say Chye Joachim Loo
- †School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
- §Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551, Singapore
| | | | | | - Qichun Zhang
- †School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
- ∇Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| |
Collapse
|
19
|
|
20
|
Ya-li F, Wei-da W, Xin-hua T, Hao-ran L, Zhuwei D, Zhi-chao Y, Yun-long D. Isolation and characterization of an electrochemically active and cyanide-degrading bacterium isolated from a microbial fuel cell. RSC Adv 2014. [DOI: 10.1039/c4ra04090b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
21
|
Liang B, Cheng H, Van Nostrand JD, Ma J, Yu H, Kong D, Liu W, Ren N, Wu L, Wang A, Lee DJ, Zhou J. Microbial community structure and function of nitrobenzene reduction biocathode in response to carbon source switchover. WATER RESEARCH 2014; 54:137-148. [PMID: 24565804 DOI: 10.1016/j.watres.2014.01.052] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Revised: 01/23/2014] [Accepted: 01/24/2014] [Indexed: 06/03/2023]
Abstract
The stress of poised cathode potential condition and carbon source switchover for functional biocathode microbial community influences is poorly understood. Using high-throughput functional gene array (GeoChip v4.2) and Illumina 16S rRNA gene MiSeq sequencing, we investigated the phylogenetic and functional microbial community of the initial inoculum and biocathode for bioelectrochemical reduction of nitrobenzene to less toxic aniline in response to carbon source switchover (from organic glucose to inorganic bicarbonate). Selective transformation of nitrobenzene to aniline maintained in the bicarbonate fed biocathode although nitrobenzene reduction rate and aniline formation rate were significantly decreased compared to those of the glucose-fed biocathode. When the electrical circuit of the glucose-fed biocathode was disconnected, both rates of nitrobenzene reduction and of aniline formation were markedly decreased, confirming the essential role of an applied electric field for the enhancement of nitrobenzene reduction. The stress of poised cathode potential condition led to clear succession of microbial communities from the initial inoculum to biocathode and the carbon source switchover obviously changed the microbial community structure of biocathode. Most of the dominant genera were capable of reducing nitroaromatics to the corresponding aromatic amines regardless of the performance mode. Heterotrophic Enterococcus was dominant in the glucose-fed biocathode while autotrophic Paracoccus and Variovorax were dominant in the bicarbonate-fed biocathode. Relatively higher intensity of diverse multi-heme cytochrome c (putatively involved in electrons transfer) and carbon fixation genes was observed in the biocarbonate-fed biocathode, likely met the requirement of the energy conservation and maintained the nitrobenzene selective reduction capability after carbon source switchover. Extracellular pilin, which are important for biofilm formation and potential conductivity, had a higher gene abundance in the glucose-fed biocathode might explain the enhancement of electro-catalysis activity for nitrobenzene reduction with glucose supply. Dominant nitroaromatics-reducing or electrochemically active bacteria and diverse functional genes related to electrons transfer and nitroaromatics reduction were associated with nitrobenzene reduction efficiency of biocathode communities in response to carbon source switchover.
Collapse
Affiliation(s)
- Bin Liang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Haoyi Cheng
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China
| | - Joy D Van Nostrand
- Institute for Environmental Genomics and Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK 73019, USA
| | - Jincai Ma
- Institute for Environmental Genomics and Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK 73019, USA
| | - Hao Yu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Deyong Kong
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Wenzong Liu
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China
| | - Nanqi Ren
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Liyou Wu
- Institute for Environmental Genomics and Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK 73019, USA
| | - Aijie Wang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China; Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China.
| | - Duu-Jong Lee
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China; Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan.
| | - Jizhong Zhou
- Institute for Environmental Genomics and Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK 73019, USA; State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, PR China; Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| |
Collapse
|
22
|
Kirchhofer ND, Chen X, Marsili E, Sumner JJ, Dahlquist FW, Bazan GC. The conjugated oligoelectrolyte DSSN+ enables exceptional coulombic efficiency via direct electron transfer for anode-respiring Shewanella oneidensis MR-1—a mechanistic study. Phys Chem Chem Phys 2014; 16:20436-43. [DOI: 10.1039/c4cp03197k] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Biofilm electrochemistry reveals that DSSN+ increases coulombic efficiency by enhancing the native direct electron transfer pathway of S. oneidensis MR-1.
Collapse
Affiliation(s)
| | - Xiaofen Chen
- Department of Chemistry and Biochemistry
- University of California
- Santa Barbara, USA
| | - Enrico Marsili
- Marine and Environmental Sensing Technology Hub
- Dublin City University
- Dublin 9, Ireland
| | - James J. Sumner
- Sensors and Electron Devices Directorate
- U.S. Army Research Laboratory
- Adelphi, USA
| | | | - Guillermo C. Bazan
- Department of Materials
- University of California
- Santa Barbara, USA
- Department of Chemistry and Biochemistry
- University of California
| |
Collapse
|
23
|
Zhou M, Yang J, Wang H, Jin T, Xu D, Gu T. Microbial fuel cells and microbial electrolysis cells for the production of bioelectricity and biomaterials. ENVIRONMENTAL TECHNOLOGY 2013; 34:1915-1928. [PMID: 24350445 DOI: 10.1080/09593330.2013.813951] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Today's global energy crisis requires a multifaceted solution. Bioenergy is an important part of the solution. The microbial fuel cell (MFC) technology stands out as an attractive potential technology in bioenergy. MFCs can convert energy stored in organic matter directly into bioelectricity. MFCs can also be operated in the electrolysis mode as microbial electrolysis cells to produce bioproducts such as hydrogen and ethanol. Various wastewaters containing low-grade organic carbons that are otherwise unutilized can be used as feed streams for MFCs. Despite major advances in the past decade, further improvements in MFC power output and cost reduction are needed for MFCs to be practical. This paper analysed MFC operating principles using bioenergetics and bioelectrochemistry. Several major issues were explored to improve the MFC performance. An emphasis was placed on the use of catalytic materials for MFC electrodes. Recent advances in the production of various biomaterials using MFCs were also investigated.
Collapse
Affiliation(s)
- Minghua Zhou
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, People's Republic of China.
| | - Jie Yang
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, People's Republic of China
| | - Hongyu Wang
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, People's Republic of China
| | - Tao Jin
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, People's Republic of China
| | - Dake Xu
- Department of Chemical and Biomolecular Engineering, Ohio University, Athens, OH 45701, USA
| | - Tingyue Gu
- Department of Chemical and Biomolecular Engineering, Ohio University, Athens, OH 45701, USA
| |
Collapse
|
24
|
Fitzgerald LA, Petersen ER, Leary DH, Nadeau LJ, Soto CM, Ray RI, Little BJ, Ringeisen BR, Johnson GR, Vora GJ, Biffinger JC. Shewanella frigidimarina microbial fuel cells and the influence of divalent cations on current output. Biosens Bioelectron 2013; 40:102-9. [DOI: 10.1016/j.bios.2012.06.039] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2012] [Revised: 06/13/2012] [Accepted: 06/19/2012] [Indexed: 01/04/2023]
|
25
|
Patil SA, Hägerhäll C, Gorton L. Electron transfer mechanisms between microorganisms and electrodes in bioelectrochemical systems. ACTA ACUST UNITED AC 2012. [DOI: 10.1007/s12566-012-0033-x] [Citation(s) in RCA: 146] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
26
|
Malvankar NS, Lovley DR. Microbial nanowires: a new paradigm for biological electron transfer and bioelectronics. CHEMSUSCHEM 2012; 5:1039-1046. [PMID: 22614997 DOI: 10.1002/cssc.201100733] [Citation(s) in RCA: 124] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Revised: 03/06/2012] [Indexed: 06/01/2023]
Abstract
The discovery that Geobacter sulfurreducens can produce protein filaments with metallic-like conductivity, known as microbial nanowires, that facilitate long-range electron transport is a paradigm shift in biological electron transfer and has important implications for biogeochemistry, microbial ecology, and the emerging field of bioelectronics. Although filaments in a wide diversity of microorganisms have been called microbial nanowires, the type IV pili of G. sulfurreducens and G. metallireducens are the only filaments that have been shown to be required for extracellular electron transport to extracellular electron acceptors or for conduction of electrons through biofilms. Studies of G. sulfurreducens pili preparations and intact biofilms under physiologically relevant conditions have provided multiple lines of evidence for metallic-like conduction along the length of pili and for the possibility of pili networks to confer high conductivity within biofilms. This mechanism of electron conduction contrasts with the previously known mechanism for biological electron transfer via electron tunneling or hopping between closely associated molecules, a strategy unlikely to be well adapted for long-range electron transport outside the cell. In addition to promoting electron exchange with abiotic electron acceptors, microbial nanowires have recently been shown to be involved in direct interspecies electron transfer between syntrophic partners. An improved understanding of the mechanisms for metallic-like conductivity in microbial nanowires, as well as engineering microorganisms with desirable catalytic abilities with nanowires, could lead to new applications in microbial electrosynthesis and bioelectronics.
Collapse
Affiliation(s)
- Nikhil S Malvankar
- Department of Microbiology, University of Massachusetts, Amherst, 203, Morrill Science Center IVN, 639 North Pleasant Street, Amherst, MA 01003, USA
| | | |
Collapse
|