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Gagné F, Gauthier M, André C. Plastic Analysis with a Plasmonic Nano-Gold Sensor Coated with Plastic-Binding Peptides. J Xenobiot 2024; 14:690-700. [PMID: 38921649 PMCID: PMC11204973 DOI: 10.3390/jox14020040] [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: 03/28/2024] [Revised: 05/03/2024] [Accepted: 05/27/2024] [Indexed: 06/27/2024] Open
Abstract
Contamination with plastics of small dimensions (<1 µm) represents a health concern for many terrestrial and aquatic organisms. This study examined the use of plastic-binding peptides as a coating probe to detect various types of plastic using a plasmon nano-gold sensor. Plastic-binding peptides were selected for polyethylene (PE), polyethylene terephthalate (PET), polypropylene (PP), and polystyrene (PS) based on the reported literature. Using nAu with each of these peptides to test the target plastics revealed high signal, at 525/630 nm, suggesting that the target plastic limited HCl-induced nAu aggregation. Testing with other plastics revealed some lack of specificity but the signal was always lower than that of the target plastic. This suggests that these peptides, although reacting mainly with their target plastic, show partial reactivity with the other target plastics. By using a multiple regression model, the relative levels of a given plastic could be corrected by the presence of other plastics. This approach was tested in freshwater mussels caged for 3 months at sites suspected to release plastic materials: in rainfall overflow discharges, downstream a largely populated city, and in a municipal effluent dispersion plume. The data revealed that the digestive glands of the mussels contained higher levels of PP, PE, and PET plastic particles at the rainfall overflow and downstream city sites compared to the treated municipal effluent site. This corroborated earlier findings that wastewater treatment could remove nanoparticles, at least in part. A quick and inexpensive screening test for plastic nanoparticles in biological samples with plasmonic nAu-peptides is proposed.
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Affiliation(s)
- Francois Gagné
- Environment and Climate Change Canada, Aquatic Contaminants Research Division, 105 McGill, Montréal, QC H2Y 2E7, Canada; (M.G.); (C.A.)
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Tian K, Zhang Y, Chen R, Tan D, Zhong M, Yao D, Dong Y, Liu Y. Self-assembling a 1,4-dioxane-degrading consortium and identifying the key role of Shinella sp. through dilution-to-extinction and reculturing. Microbiol Spectr 2023; 11:e0178723. [PMID: 37882576 PMCID: PMC10714792 DOI: 10.1128/spectrum.01787-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 08/26/2023] [Indexed: 10/27/2023] Open
Abstract
IMPORTANCE Assembling a functional microbial consortium and identifying key degraders involved in the degradation of 1,4-dioxane are crucial for the design of synergistic consortia used in enhancing the bioremediation of 1,4-dioxane-contaminated sites. However, due to the vast diversity of microbes, assembling a functional consortium and identifying novel degraders through a simple method remain a challenge. In this study, we reassembled 1,4-dioxane-degrading microbial consortia using a simple and easy-to-operate method by combining dilution-to-extinction and reculture techniques. We combined differential analysis of community structure and metabolic function and confirmed that Shinella species have a stronger 1,4-dioxane degradation ability than Xanthobacter species in the enriched consortium. In addition, a new dioxane-degrading bacterium was isolated, Shinella yambaruensis, which verified our findings. These results demonstrate that DTE and reculture techniques can be used beyond diversity reduction to assemble functional microbial communities, particularly to identify key degraders in contaminant-degrading consortia.
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Affiliation(s)
- Kun Tian
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
- University of Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Nanjing, China
| | - Yue Zhang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
- College of Environment, Hohai University, Nanjing, China
| | - Ruihuan Chen
- College of Life and Environmental Science, Wenzhou University, Wenzhou, China
| | - Ding Tan
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
- University of Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Nanjing, China
| | - Ming Zhong
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
- University of Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Nanjing, China
| | - Dandan Yao
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
- University of Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Nanjing, China
| | - Yuanhua Dong
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
- University of Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Nanjing, China
| | - Yun Liu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
- University of Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Nanjing, China
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Wu S, Li X, Fan H, Dong Y, Wang Y, Bai Z, Zhuang X. Engineering artificial microbial consortia based on division of labor promoted simultaneous removal of Cr(VI)-atrazine combined pollution. JOURNAL OF HAZARDOUS MATERIALS 2023; 443:130221. [PMID: 36367470 DOI: 10.1016/j.jhazmat.2022.130221] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 10/04/2022] [Accepted: 10/18/2022] [Indexed: 06/16/2023]
Abstract
Combined pollution caused by organic pollutants and heavy metals is common in polluted sites and wastewater. Engineering artificial microbial consortia offers a promising approach to address this complex issue. However, the mutualistic interactions and the critical function of specific microbe within microbial consortia remain unclear. In this study, based on division of labor, we respectively co-cultured two Cr(VI)-reducing strains, Paenarthrobacter nitroguajacolicus C1 and Pseudomonas putida C2, with an atrazine-degrading strain, Paenarthrobacter ureafaciens AT. After 5 days, up to 95 % Cr(VI) and 100 % atrazine were removed from the cocultures. Strain AT degraded nearly all atrazine and contributed only to a fraction of Cr(VI) reduction, whereas C1 promoted 41 % Cr(VI) transformation to Cr(III) fixed in cells, and C2 promoted 91 % Cr(VI) transformation to soluble Cr(III). Metabolic analyses of the cocultures and monocultures demonstrated that AT provided C1 with isopropylamine by passive diffusion and C2 with other effective nitrogen resources by cell-cell surface contact to promote their growth. Soil experiments also showed that treatments with AT and C2 achieved the highest Cr(VI) reduction and no atrazine residue. Our results indicate that engineering artificial microbial consortia based on division of labor and metabolic interactions is effective in promoting highly efficient bioremediation of combined pollution.
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Affiliation(s)
- Shanghua Wu
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Xianglong Li
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haonan Fan
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuzhu Dong
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yaxin Wang
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhihui Bai
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xuliang Zhuang
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China.
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Escolà Casas M, Guivernau M, Viñas M, Fernández B, Cáceres R, Biel C, Matamoros V. Use of wood and cork in biofilters for the simultaneous removal of nitrates and pesticides from groundwater. CHEMOSPHERE 2023; 313:137502. [PMID: 36495981 DOI: 10.1016/j.chemosphere.2022.137502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 10/03/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
About 13% and 7% of monitored groundwater stations in Europe exceed the permitted levels of nitrates (50 mg NO3- L-1) or pesticides (0.1 μg L-1), respectively. Although slow sand filtration can remove nitrates via denitrification when oxygen is limited, it requires an organic carbon source. The present study evaluates the performance of the use of wood pellets and granulated cork as carbon sources in bench-scale biofilters operated under water-saturated and water-unsaturated conditions for more than 400 days. The biofilters were monitored for nitrate (200 mg L-1) and pesticide (mecoprop, diuron, atrazine, and bromacil, each at a concentration of 5 μg L-1) attenuation, as well as for the formation of nitrite and pesticide transformation products. Microbiological characterization of each biofilter was also performed. The water-saturated wood biofilter achieved the best nitrate removal (>99%), while the cork biofilters lost all denitrification power over time (from 38% to no removal). The unsaturated biofilter columns were not effective for removing nitrates (20-30% removal). As for pesticides, all the biofilters achieved high removal rates of mecoprop and diuron (>99% and >75%, respectively). Atrazine removal was better in the wood-pellet biofilters than the cork ones (68-96% vs. 31-38%). Bromacil was only removed in the water-unsaturated cork biofilter (67%). However, a bromacil transformation product was formed there. The water-saturated wood biofilter contained the highest number of denitrifying microorganisms, with Methyloversatilis as the characteristic genus. Microbial composition could explain the high removal of pesticides and nitrates achieved in the wood-pellet biofilter. Overall, the results indicate that wood-pellet biofilters operated under water-saturated conditions are a good solution for treating groundwater contaminated with nitrates and pesticides.
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Affiliation(s)
- Mònica Escolà Casas
- Department of Environmental Chemistry, IDAEA-CSIC, c/Jordi Girona, 18-26, E-08034, Barcelona, Spain.
| | - Miriam Guivernau
- Institute of Agrifood Research and Technology (IRTA), Sustainability in Biosystems Program, Torre Marimon, E-08140, Caldes de Montbui, Spain
| | - Marc Viñas
- Institute of Agrifood Research and Technology (IRTA), Sustainability in Biosystems Program, Torre Marimon, E-08140, Caldes de Montbui, Spain
| | - Belén Fernández
- Institute of Agrifood Research and Technology (IRTA), Sustainability in Biosystems Program, Torre Marimon, E-08140, Caldes de Montbui, Spain
| | - Rafaela Cáceres
- Institute of Agrifood Research and Technology (IRTA), Sustainability in Biosystems Program, Torre Marimon, E-08140, Caldes de Montbui, Spain
| | - Carme Biel
- Institute of Agrifood Research and Technology (IRTA), Sustainable Plant Protection Program, Ctra. de Cabrils, Km 2, E08348, Cabrils, Spain
| | - Víctor Matamoros
- Department of Environmental Chemistry, IDAEA-CSIC, c/Jordi Girona, 18-26, E-08034, Barcelona, Spain
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Kang CW, Lim HG, Won J, Cha S, Shin G, Yang JS, Sung J, Jung GY. Circuit-guided population acclimation of a synthetic microbial consortium for improved biochemical production. Nat Commun 2022; 13:6506. [PMID: 36344561 PMCID: PMC9640620 DOI: 10.1038/s41467-022-34190-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 10/14/2022] [Indexed: 11/09/2022] Open
Abstract
Microbial consortia have been considered potential platforms for bioprocessing applications. However, the complexity in process control owing to the use of multiple strains necessitates the use of an efficient population control strategy. Herein, we report circuit-guided synthetic acclimation as a strategy to improve biochemical production by a microbial consortium. We designed a consortium comprising alginate-utilizing Vibrio sp. dhg and 3-hydroxypropionic acid (3-HP)-producing Escherichia coli strains for the direct conversion of alginate to 3-HP. We introduced a genetic circuit, named "Population guider", in the E. coli strain, which degrades ampicillin only when 3-HP is produced. In the presence of ampicillin as a selection pressure, the consortium was successfully acclimated for increased 3-HP production by 4.3-fold compared to that by a simple co-culturing consortium during a 48-h fermentation. We believe this concept is a useful strategy for the development of robust consortium-based bioprocesses.
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Affiliation(s)
- Chae Won Kang
- grid.49100.3c0000 0001 0742 4007Department of Chemical Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673 Korea
| | - Hyun Gyu Lim
- grid.49100.3c0000 0001 0742 4007Department of Chemical Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673 Korea
| | - Jaehyuk Won
- grid.254224.70000 0001 0789 9563Creative Research Initiative Center for Chemical Dynamics in Living Cells, Chung-Ang University, 84 Heukseok-Ro, Dongjak-gu, Seoul 06974 Republic of Korea ,grid.254224.70000 0001 0789 9563Department of Chemistry, Chung-Ang University, 84 Heukseok-Ro, Dongjak-gu, Seoul 06974 Republic of Korea
| | - Sanghak Cha
- grid.49100.3c0000 0001 0742 4007Department of Chemical Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673 Korea
| | - Giyoung Shin
- grid.49100.3c0000 0001 0742 4007School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673 Korea
| | - Jae-Seong Yang
- grid.423637.70000 0004 1763 5862Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Campus UAB, Bellaterra, Barcelona, 08193 Spain
| | - Jaeyoung Sung
- grid.254224.70000 0001 0789 9563Creative Research Initiative Center for Chemical Dynamics in Living Cells, Chung-Ang University, 84 Heukseok-Ro, Dongjak-gu, Seoul 06974 Republic of Korea ,grid.254224.70000 0001 0789 9563Department of Chemistry, Chung-Ang University, 84 Heukseok-Ro, Dongjak-gu, Seoul 06974 Republic of Korea
| | - Gyoo Yeol Jung
- grid.49100.3c0000 0001 0742 4007Department of Chemical Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673 Korea ,grid.49100.3c0000 0001 0742 4007School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673 Korea
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6
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Sun Y, Ding A, Zhao X, Chang W, Ren L, Zhao Y, Song Z, Hao D, Liu Y, Jin N, Zhang D. Response of soil microbial communities to petroleum hydrocarbons at a multi-contaminated industrial site in Lanzhou, China. CHEMOSPHERE 2022; 306:135559. [PMID: 35787883 DOI: 10.1016/j.chemosphere.2022.135559] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/27/2022] [Accepted: 06/28/2022] [Indexed: 06/15/2023]
Abstract
Total petroleum hydrocarbon (TPH) contamination poses threats to ecological systems and human health. Many studies have reported its negative impacts on soil microbes, but limited information is known about microbial change and response to multiple TPH contamination events. In this study, we investigated TPH contamination level, microbial community structure and functional genes at a multi-contaminated industrial site in Lanzhou, where a benzene spill accident caused the drinking water crisis in 2014. TPHs distribution in soils and groundwater indicated multiple TPH contamination events in history, and identified the spill location where high TPH level (6549 mg kg-1) and high ratio of low-molecular-weight TPHs (>80%) were observed. In contrast, TPH level was moderate (349 mg kg-1) and the proportion of low-molecular-weight TPHs was 44% in soils with a long TPH contamination history. After the spill accident, soil bacterial communities became significant diverse (p = 0.047), but the dominant microbes remained the same as Pseudomonadaceae and Comamonadaceae. The abundance of hydrocarbon-degradation related genes increased by 10-1000 folds at the site where the spill accident occurred in multi-contaminated areas and was significantly related to 2-ring PAHs. Such changes of microbial community and hydrocarbon-degradation related genes together indicated the resilience of soil indigenous microbes toward multiple contamination events. Our results proved the significant change of bacterial community and huge shift of hydrocarbon-degradation related genes after the spill accident (multiple contamination events), and provided a deep insight into microbial response at industrial sites with a long period of contamination history.
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Affiliation(s)
- Yujiao Sun
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China
| | - Aizhong Ding
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China
| | - Xiaohui Zhao
- China Institute of Water Resources and Hydropower Research, Beijing, 100038, China
| | - Wonjae Chang
- Department of Civil, Geological, and Environmental Engineering, University of Saskatchewan, Saskatoon, SK, Canada
| | - Liangsuo Ren
- Institute of Geography and Oceangraphy, Nanning Normal University, Nanning, 530100, China
| | - Yinjun Zhao
- Institute of Geography and Oceangraphy, Nanning Normal University, Nanning, 530100, China
| | - Ziyu Song
- BCEG Environmental Remediation LTD, Beijing, 100015, China.
| | - Di Hao
- BCEG Environmental Remediation LTD, Beijing, 100015, China.
| | - Yueqiao Liu
- Experiment and Practice Innovation Education Center, Beijing Normal University at Zhuhai, Zhuhai, 519087, China.
| | - Naifu Jin
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China.
| | - Dayi Zhang
- College of New Energy and Environment, Jilin University, Changchun 130021, China; Key Laboratory of Groundwater Resources and Environment Ministry of Education, Jilin University, Changchun, 130021, China.
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Dutta N, Usman M, Ashraf MA, Luo G, Zhang S. A critical review of recent advances in the bio-remediation of chlorinated substances by microbial dechlorinators. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022. [DOI: 10.1016/j.ceja.2022.100359] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
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Roszak M, Jabłońska J, Stachurska X, Dubrowska K, Kajdanowicz J, Gołębiewska M, Kiepas-Kokot A, Osińska B, Augustyniak A, Karakulska J. Development of an Autochthonous Microbial Consortium for Enhanced Bioremediation of PAH-Contaminated Soil. Int J Mol Sci 2021; 22:13469. [PMID: 34948267 PMCID: PMC8708151 DOI: 10.3390/ijms222413469] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 12/08/2021] [Accepted: 12/13/2021] [Indexed: 11/26/2022] Open
Abstract
The main objectives of this study were to isolate bacteria from soil chronically contaminated with polycyclic aromatic hydrocarbons (PAHs), develop an autochthonous microbial consortium, and evaluate its ability to degrade PAHs in their native contaminated soil. Strains with the best bioremediation potential were selected during the multi-stage isolation process. Moreover, to choose bacteria with the highest bioremediation potential, the presence of PAH-degrading genes (pahE) was confirmed and the following tests were performed: tolerance to heavy metals, antagonistic behavior, phytotoxicity, and antimicrobial susceptibility. In vitro degradation of hydrocarbons led to the reduction of the total PAH content by 93.5% after the first day of incubation and by 99.22% after the eighth day. Bioremediation experiment conducted in situ in the contaminated area resulted in the average reduction of the total PAH concentration by 33.3% after 5 months and by over 72% after 13 months, compared to the concentration recorded before the intervention. Therefore, this study implicates that the development of an autochthonous microbial consortium isolated from long-term PAH-contaminated soil has the potential to enhance the bioremediation process.
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Affiliation(s)
- Marta Roszak
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Al. Piastów 45, 70-311 Szczecin, Poland; (M.R.); (J.J.); (X.S.); (K.D.); (J.K.); (M.G.); (J.K.)
- Department of Laboratory Medicine, Pomeranian Medical University in Szczecin, Al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Joanna Jabłońska
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Al. Piastów 45, 70-311 Szczecin, Poland; (M.R.); (J.J.); (X.S.); (K.D.); (J.K.); (M.G.); (J.K.)
- Department of Chemical and Process Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Al. Piastów 42, 71-065 Szczecin, Poland
| | - Xymena Stachurska
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Al. Piastów 45, 70-311 Szczecin, Poland; (M.R.); (J.J.); (X.S.); (K.D.); (J.K.); (M.G.); (J.K.)
| | - Kamila Dubrowska
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Al. Piastów 45, 70-311 Szczecin, Poland; (M.R.); (J.J.); (X.S.); (K.D.); (J.K.); (M.G.); (J.K.)
- Department of Chemical and Process Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Al. Piastów 42, 71-065 Szczecin, Poland
| | - Justyna Kajdanowicz
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Al. Piastów 45, 70-311 Szczecin, Poland; (M.R.); (J.J.); (X.S.); (K.D.); (J.K.); (M.G.); (J.K.)
| | - Marta Gołębiewska
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Al. Piastów 45, 70-311 Szczecin, Poland; (M.R.); (J.J.); (X.S.); (K.D.); (J.K.); (M.G.); (J.K.)
| | - Anna Kiepas-Kokot
- Department of Environmental Management, Faculty of Environmental Management and Agriculture, West Pomeranian University of Technology in Szczecin, ul. Słowackiego 17, 71-434 Szczecin, Poland;
| | - Beata Osińska
- Research Institute of Animal Production PIB Kołbacz Sp. z o.o., Warcisława Street 1, 74-106 Kołbacz, Poland;
| | - Adrian Augustyniak
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Al. Piastów 45, 70-311 Szczecin, Poland; (M.R.); (J.J.); (X.S.); (K.D.); (J.K.); (M.G.); (J.K.)
- Department of Chemical and Process Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Al. Piastów 42, 71-065 Szczecin, Poland
- Chair of Building Materials and Construction Chemistry, Technische Universität Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany
| | - Jolanta Karakulska
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Al. Piastów 45, 70-311 Szczecin, Poland; (M.R.); (J.J.); (X.S.); (K.D.); (J.K.); (M.G.); (J.K.)
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Naloka K, Polrit D, Muangchinda C, Thoetkiattikul H, Pinyakong O. Bioballs carrying a syntrophic Rhodococcus and Mycolicibacterium consortium for simultaneous sorption and biodegradation of fuel oil in contaminated freshwater. CHEMOSPHERE 2021; 282:130973. [PMID: 34091296 DOI: 10.1016/j.chemosphere.2021.130973] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 04/14/2021] [Accepted: 05/22/2021] [Indexed: 06/12/2023]
Abstract
Nonpathogenic effective bacterial hydrocarbon degraders, Rhodococcus ruber S103, Mycolicibacterium parafortuitum J101 and Mycolicibacterium austroafricanum Y502, were isolated from mixed polycyclic aromatic hydrocarbon (PAH)-enriched river sediments. They possessed broad substrate specificities toward various PAHs and aliphatic compounds as sole carbon sources. These strains exhibited promising characteristics, including biosurfactant production, high cell hydrophobicity, biofilm formation and no antagonistic interactions, and contained genes encoding hydrocarbon-degrading enzymes. The mixed bacterial consortium combining S103, J101 and Y502, showed more effective syntrophic degradation of two types of refined petroleum products, diesel and fuel oils, than monocultures. The defined consortium immobilized on plastic balls achieved over 50% removal efficiency of high fuel oil concentration (3000 mg L-1) in a synthetic medium and contaminated freshwater. Furthermore, the immobilized cells simultaneously degraded more than 46% of total fuel oil adsorbed on plastic balls in both culture systems. SEM imaging confirmed that the immobilized consortium exhibited biofilm formation with the bacterial community covering most of the bioball surface, resulting in high bacterial survival against toxic contaminants. The results of this study showed the potential use of the cooperative interaction between Rhodococcus and Mycolicibacterium as immobilized bioballs for the bioremediation of fuel oil-contaminated environments. Additionally, this research has motivated further investigations into the development of bioremediation products for fuel oil degradation.
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Affiliation(s)
- Kallayanee Naloka
- Microbial Technology for Marine Pollution Treatment Research Unit, Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Duangporn Polrit
- International Program in Hazardous Substance and Environmental Management, Graduate School, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Chanokporn Muangchinda
- Microbial Technology for Marine Pollution Treatment Research Unit, Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Honglada Thoetkiattikul
- Technology Management Center, National Science and Technology Development Agency, Pathum Thani, 12120, Thailand
| | - Onruthai Pinyakong
- Microbial Technology for Marine Pollution Treatment Research Unit, Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand; Research Program on Remediation Technologies for Petroleum Contamination, Center of Excellence on Hazardous Substance Management (HSM), Chulalongkorn University, Bangkok, 10330, Thailand.
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Acinetobacter tandoii ZM06 Assists Glutamicibacter nicotianae ZM05 in Resisting Cadmium Pressure to Preserve Dipropyl Phthalate Biodegradation. Microorganisms 2021; 9:microorganisms9071417. [PMID: 34209156 PMCID: PMC8307640 DOI: 10.3390/microorganisms9071417] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 06/23/2021] [Accepted: 06/28/2021] [Indexed: 12/13/2022] Open
Abstract
Dipropyl phthalate (DPrP) coexists with cadmium as cocontaminants in environmental media. A coculture system including the DPrP-degrading bacterium Glutamicibacter nicotianae ZM05 and the nondegrading bacterium Acinetobacter tandoii ZM06 was artificially established to degrade DPrP under Cd(II) stress. Strain ZM06 relieved the pressure of cadmium on strain ZM05 and accelerated DPrP degradation in the following three ways: first, strain ZM06 adsorbed Cd(II) on the cell surface (as observed by scanning electron microscopy) to decrease the concentration of Cd(II) in the coculture system; second, the downstream metabolites of ZM05 were utilized by strain ZM06 to reduce metabolite inhibition; and third, strain ZM06 supplied amino acids and fatty acids to strain ZM05 to relieve stress during DPrP degradation, which was demonstrated by comparative transcriptomic analysis. This study provides an elementary understanding of how microbial consortia improve the degradation efficiency of organic pollutants under heavy metals contamination.
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Cecchi G, Cutroneo L, Di Piazza S, Besio G, Capello M, Zotti M. Port Sediments: Problem or Resource? A Review Concerning the Treatment and Decontamination of Port Sediments by Fungi and Bacteria. Microorganisms 2021; 9:microorganisms9061279. [PMID: 34208305 PMCID: PMC8231108 DOI: 10.3390/microorganisms9061279] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/01/2021] [Accepted: 06/07/2021] [Indexed: 12/19/2022] Open
Abstract
Contamination of marine sediments by organic and/or inorganic compounds represents one of the most critical problems in marine environments. This issue affects not only biodiversity but also ecosystems, with negative impacts on sea water quality. The scientific community and the European Commission have recently discussed marine environment and ecosystem protection and restoration by sustainable green technologies among the main objectives of their scientific programmes. One of the primary goals of sustainable restoration and remediation of contaminated marine sediments is research regarding new biotechnologies employable in the decontamination of marine sediments, to consider sediments as a resource in many fields such as industry. In this context, microorganisms—in particular, fungi and bacteria—play a central and crucial role as the best tools of sustainable and green remediation processes. This review, carried out in the framework of the Interreg IT-FR Maritime GEREMIA Project, collects and shows the bioremediation and mycoremediation studies carried out on marine sediments contaminated with ecotoxic metals and organic pollutants. This work evidences the potentialities and limiting factors of these biotechnologies and outlines the possible future scenarios of the bioremediation of marine sediments, and also highlights the opportunities of an integrated approach that involves fungi and bacteria together.
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Affiliation(s)
- Grazia Cecchi
- DISTAV, University of Genoa, 26 Corso Europa, I-16132 Genoa, Italy; (G.C.); (L.C.); (S.D.P.); (M.Z.)
| | - Laura Cutroneo
- DISTAV, University of Genoa, 26 Corso Europa, I-16132 Genoa, Italy; (G.C.); (L.C.); (S.D.P.); (M.Z.)
| | - Simone Di Piazza
- DISTAV, University of Genoa, 26 Corso Europa, I-16132 Genoa, Italy; (G.C.); (L.C.); (S.D.P.); (M.Z.)
| | - Giovanni Besio
- DICCA, University of Genoa, 1 Via Montallegro, I-16145 Genoa, Italy;
| | - Marco Capello
- DISTAV, University of Genoa, 26 Corso Europa, I-16132 Genoa, Italy; (G.C.); (L.C.); (S.D.P.); (M.Z.)
- Correspondence:
| | - Mirca Zotti
- DISTAV, University of Genoa, 26 Corso Europa, I-16132 Genoa, Italy; (G.C.); (L.C.); (S.D.P.); (M.Z.)
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Ankati S, Srinivas V, Pratyusha S, Gopalakrishnan S. Streptomyces consortia-mediated plant defense against Fusarium wilt and plant growth-promotion in chickpea. Microb Pathog 2021; 157:104961. [PMID: 34033892 DOI: 10.1016/j.micpath.2021.104961] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/30/2021] [Accepted: 05/07/2021] [Indexed: 11/15/2022]
Abstract
Three strains of Streptomyces griseus (CAI-24, CAI-121 and CAI-127) and one strain each of Streptomyces africanus (KAI-32) and Streptomyces coelicolor (KAI-90) were reported by us as biocontrol agents against Fusarium wilt, caused by Fusarium oxysporum f. sp. ciceri (FOC), and as plant growth-promoters (PGP) in chickpea. In the present study, the combined effect of these Streptomyces strains as a consortium were assessed for their biocontrol potential against Fusarium wilt and PGP in chickpea. Based on their compatibility, biocontrol ability and PGP performance, two consortia were assembled, consortium-1 having all the five strains of Streptomyces sp. and consortium-2 having the two promising strains (CAI-127 and KAI-32). Under greenhouse conditions, consortium-1 and consortium-2 were found to reduce the Fusarium wilt disease incidence by 55% and 74%, while under field conditions, these were by 86% and 96% in year-1 and by 54% and 69% in year-2, respectively, when compared to the positive control (only FOC treated). Shoot samples treated with consortia + FOC contained significantly enhanced antioxidant enzymes such as superoxide dismutase, catalase, ascorbate peroxidase, guaiacol peroxidase, glutathione reductase and phenylalanine ammonia-lyase, when compared to the positive control (only FOC treated) or the negative control samples (neither FOC nor consortia treated). When the consortia were evaluated for their PGP traits under field conditions in two chickpea cultivars, JG11 and ICCV2, and in two consecutive years, nodule number was found to enhance up to 25%, nodule weight up to 49%, leaf area up to 37%, leaf weight up to 43%, root weight up to 23%, shoot weight up to 35%, seed weight up to 30%, seed number up to 29%, total dry matter up to 22% and grain yield up to 22% over the un-inoculated control plants. This study had demonstrated that the selected consortium of Streptomyces spp. has a greater potential for biological control of Fusarium wilt disease and PGP in chickpea.
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Affiliation(s)
- Sravani Ankati
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru 502 324, Telangana, India
| | - Vadlamudi Srinivas
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru 502 324, Telangana, India
| | - Sambangi Pratyusha
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru 502 324, Telangana, India
| | - Subramaniam Gopalakrishnan
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru 502 324, Telangana, India.
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13
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Macchi M, Festa S, Nieto E, Irazoqui JM, Vega-Vela NE, Junca H, Valacco MP, Amadio AF, Morelli IS, Coppotelli BM. Design and evaluation of synthetic bacterial consortia for optimized phenanthrene degradation through the integration of genomics and shotgun proteomics. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2021; 29:e00588. [PMID: 33489789 PMCID: PMC7809168 DOI: 10.1016/j.btre.2021.e00588] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 12/22/2020] [Accepted: 12/31/2020] [Indexed: 01/15/2023]
Abstract
Two synthetic bacterial consortia (SC) composed of bacterial strains Sphingobium sp. (AM), Klebsiella aerogenes (B), Pseudomonas sp. (Bc-h and T), Burkholderia sp. (Bk) and Inquilinus limosus (Inq) isolated from a natural phenanthrene (PHN)-degrading consortium (CON) were developed and evaluated as an alternative approach to PHN biodegradation in bioremediation processes. A metabolic network showing the potential role of strains was reconstructed by in silico study of the six genomes and classification of dioxygenase enzymes using RHObase and AromaDeg databases. Network analysis suggested that AM and Bk were responsible for PHN initial attack, while Inq, B, T and Bc-h would degrade PHN metabolites. The predicted roles were further confirmed by physiological, RT-qPCR and metaproteomic assays. SC-1 with AM as the sole PHN degrader was the most efficient. The ecological roles inferred in this study can be applied to optimize the design of bacterial consortia and tackle the biodegradation of complex environmental pollutants.
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Affiliation(s)
- Marianela Macchi
- Centro de Investigación y Desarrollo en Fermentaciones Industriales, CINDEFI (UNLP, CCT-La Plata, CONICET), La Plata, Argentina
| | - Sabrina Festa
- Centro de Investigación y Desarrollo en Fermentaciones Industriales, CINDEFI (UNLP, CCT-La Plata, CONICET), La Plata, Argentina
| | - Esteban Nieto
- Centro de Investigación y Desarrollo en Fermentaciones Industriales, CINDEFI (UNLP, CCT-La Plata, CONICET), La Plata, Argentina
| | - José M. Irazoqui
- E.E.A. Rafaela, Instituto Nacional de Tecnología Agropecuaria (INTA), CCT Santa Fe, CONICET, Rafaela, Argentina
| | - Nelson E. Vega-Vela
- Pontificia Universidad Javeriana, Bogotá, Colombia
- Universidad de Bogotá Jorge Tadeo Lozano, Bogotá, Colombia
| | - Howard Junca
- Microbiomas Foundation, Div. Ecogenomics & Holobionts, RG Microbial Ecology: Metabolism, Genomics & Evolution, Chía, Colombia
| | | | - Ariel F. Amadio
- E.E.A. Rafaela, Instituto Nacional de Tecnología Agropecuaria (INTA), CCT Santa Fe, CONICET, Rafaela, Argentina
| | - Irma S. Morelli
- Centro de Investigación y Desarrollo en Fermentaciones Industriales, CINDEFI (UNLP, CCT-La Plata, CONICET), La Plata, Argentina
- Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, La Plata, Argentina
| | - Bibiana M. Coppotelli
- Centro de Investigación y Desarrollo en Fermentaciones Industriales, CINDEFI (UNLP, CCT-La Plata, CONICET), La Plata, Argentina
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Wang S, Wang D, Yu Z, Dong X, Liu S, Cui H, Sun B. Advances in research on petroleum biodegradability in soil. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2021; 23:9-27. [PMID: 33393551 DOI: 10.1039/d0em00370k] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
With the increased demand for petroleum and petroleum products from all parts of the society, environmental pollution caused by petroleum development and production processes is becoming increasingly serious. Soil pollution caused by petroleum seriously affects environmental quality in addition to human lives and productivity. At present, petroleum in soil is mainly degraded by biological methods. In their natural state, native bacteria in the soil spontaneously degrade petroleum pollutants that enter the soil; however, when the pollution levels increase, the degradation rates decrease, and it is necessary to add nutrients, dissolved oxygen, biosurfactants and other additives to improve the degradation ability of the native bacteria in the soil. The degradation process can also be enhanced by adding exogenous petroleum-degrading bacteria, microbial immobilization technologies, and microbial fuel cell technologies.
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Affiliation(s)
- Song Wang
- School of Earth Science, Northeast Petroleum University, Daqing, China
| | - Dan Wang
- School of Earth Science, Northeast Petroleum University, Daqing, China
| | - Zhongchen Yu
- School of Civil Architecture Engineering, Northeast Petroleum University, Daqing, China.
| | - Xigui Dong
- 2nd Oil Production Plant Daqing Oilfield Co. Ltd, Daqing, China
| | - Shumeng Liu
- 2nd Oil Production Plant Daqing Oilfield Co. Ltd, Daqing, China
| | - Hongmei Cui
- School of Civil Architecture Engineering, Northeast Petroleum University, Daqing, China.
| | - Bing Sun
- 2nd Oil Production Plant Daqing Oilfield Co. Ltd, Daqing, China
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15
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Li N, Liu R, Chen J, Wang J, Hou L, Zhou Y. Enhanced phytoremediation of PAHs and cadmium contaminated soils by a Mycobacterium. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 754:141198. [PMID: 33254925 DOI: 10.1016/j.scitotenv.2020.141198] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 07/20/2020] [Accepted: 07/21/2020] [Indexed: 06/12/2023]
Abstract
This study investigated Fire Phoenix (Festuca L.) and Echinacea purpurea (L.) Moench inoculated with a Mycobacterium strain N12 in remediation of soils contaminated with both polycyclic aromatic hydrocarbons (PAHs) and cadmium (Cd). Plant growth and PAH and Cd removal were monitored in 60, 120, and 150 days after transplanting. Results showed that Fire Phoenix plants grown in soil containing 200 mg/kg PAHs and 15 mg/kg Cd inoculated with N12 were able to remove 76.3% PAHs compared to removal of 68.3% of PAHs by the plants without N12 inoculation. On day 150, the underground biomass of Fire Phoenix plants grown in soil inoculated with N12 increased 59.40% compared to that without N12 inoculation. The enhanced removal of PAH by Fire Phoenix and N12 was related to the improved rhizosphere microbial activities. However, inoculation of N12 to E. purpurea grown soil did not significantly improve the removal of PAHs and Cd. Our results showed that phytoremediation of PAHs and Cd can be enhanced by a Mycobacterium strain N12, especially when PLFA concentrations of bacteria and fungi exceeded 60% of the initial concentrations, but the enhancement is plant species dependent.
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Affiliation(s)
- Na Li
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, Liaoning, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Rui Liu
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, Liaoning, China; Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, China.
| | - Jianjun Chen
- Department of Environmental Horticulture and Mid-Florida Research & Education Center, University of Florida, Apopka, FL 32703, USA
| | - Jian Wang
- Institute of Biology, Shenyang Research Institute of Chemical Industry, Shenyang 110021, Liaoning, China
| | - Liqun Hou
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, Liaoning, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuemei Zhou
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, Liaoning, China
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16
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Dell'Anno A, Beolchini F, Corinaldesi C, Amato A, Becci A, Rastelli E, Hekeu M, Regoli F, Astarita E, Greco S, Musco L, Danovaro R. Assessing the efficiency and eco-sustainability of bioremediation strategies for the reclamation of highly contaminated marine sediments. MARINE ENVIRONMENTAL RESEARCH 2020; 162:105101. [PMID: 32846320 DOI: 10.1016/j.marenvres.2020.105101] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/29/2020] [Accepted: 08/03/2020] [Indexed: 06/11/2023]
Abstract
Coastal sediments subjected to high anthropogenic impacts can accumulate large amounts of polycyclic aromatic hydrocarbons (PAHs) and metals, demanding effective and eco-sustainable remediation solutions. In this study, we carried out bioremediation experiments on marine sediments highly contaminated with PAHs and metals. In particular, we investigated the effects of biostimulation (by the addition of inorganic nutrients), bioaugmentation (by the addition of fungi belonging to Aspergillus sp.) and microbial fuel cell-based strategies on PAH degradation and on changes in metal partitioning. Results reported here indicate that all biotreatments determined a significant decrease of PAH concentrations (at least 60%) in a relatively short time interval (few weeks) and that biostimulation was the most effective approach (>90%). Biostimulation determined a faster degradation rate of high than low molecular weight PAHs, indicating a preferential biodegradation of specific PAH congeners. At the same time, the biotreatments changed the partitioning of metals, including their solubilization, suggesting the need of parallel environmental risk assessment. Our findings also suggest that ex situ biotreatments can have a lower carbon footprint than current management options of contaminated sediments (i.e., landfill disposal and/or disposal in confined aquatic facilities), but integration with other strategies for metal removal (e.g. through bioleaching) from sediments is needed for their safe re-use. Overall, results presented here provide new insights into the development of effective and eco-sustainable bioremediation strategies for the reclamation of highly contaminated marine sediments.
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Affiliation(s)
- A Dell'Anno
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy.
| | - F Beolchini
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy
| | - C Corinaldesi
- Dipartimento di Scienze e Ingegneria della Materia, dell'Ambiente ed Urbanistica, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy
| | - A Amato
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy
| | - A Becci
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy
| | - E Rastelli
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Napoli, Italy
| | - M Hekeu
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy
| | - F Regoli
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy
| | - E Astarita
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy
| | - S Greco
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Napoli, Italy
| | - L Musco
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Napoli, Italy
| | - R Danovaro
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy; Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Napoli, Italy
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17
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Diesel-born organosulfur compounds stimulate community re-structuring in a diesel-biodesulfurizing consortium. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2020; 28:e00572. [PMID: 33365264 PMCID: PMC7749429 DOI: 10.1016/j.btre.2020.e00572] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 10/25/2020] [Accepted: 11/21/2020] [Indexed: 12/22/2022]
Abstract
We enriched and characterized a biodesulfurizing consortium (designated as MG1). The MG1 consortium reduced the total sulfur of diesel by 25 % and utilized each of the diesel-born compounds dibenzothiophene (DBT), benzothiophene (BT), 4-methyldibenzothiophene (4-MDBT) and 4, 6-dimethyldibenzothiophene (4, 6-DMDBT) as a sole sulfur source. MiSeq analysis revealed compositional shifts in the MG1 community according to the type of the sulfur source. A DBT-grown MG1 culture had Klebsiella, Pseudomonas, Rhodococcus and Sphingomonas as the most abundant genera. When diesel or 4, 6-DMDBT was provided as a sole sulfur source, Klebsiella and Pseudomonas spp. were the most abundant. In the BT culture, Rhodococcus spp. were the key biodesulfurizers, while Klebsiella, Pseudomonas and Sphingomonas spp. dominated the 4-MDBT-grown consortium. MG1 also utilized 2-hydroxybiphenyl (the product of the 4S biodesulfurization pathway) where Pseudomonas spp. uniquely dominated the consortium. The data improves our understanding of the sulfur source-driven structural adaptability of biodesulfurizing consortia.
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Rakkan T, Sangkharak K. Enhanced Decolourisation and Biodegradation of Textile Wastewater Using Single and Mixed Cultures of a Newly Isolated Enterobacter Strain. Curr Microbiol 2020; 77:4085-4094. [DOI: 10.1007/s00284-020-02246-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 10/06/2020] [Indexed: 10/23/2022]
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Woo S, Song I, Cha HJ. Fast and Facile Biodegradation of Polystyrene by the Gut Microbial Flora of Plesiophthalmus davidis Larvae. Appl Environ Microbiol 2020; 86:e01361-20. [PMID: 32631863 PMCID: PMC7480385 DOI: 10.1128/aem.01361-20] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 06/29/2020] [Indexed: 11/20/2022] Open
Abstract
Polystyrene (PS), which accounts for a significant fraction of plastic wastes, is difficult to biodegrade due to its unique molecular structure. Therefore, biodegradation and chemical modification of PS are limited. In this study, we report PS biodegradation by the larvae of the darkling beetle Plesiophthalmus davidis (Coleoptera: Tenebrionidae). In 14 days, P. davidis ingested 34.27 ± 4.04 mg of Styrofoam (PS foam) per larva and survived by feeding only on Styrofoam. Fourier transform infrared spectroscopy confirmed that the ingested Styrofoam was oxidized. Gel permeation chromatography analysis indicated the decrease in average molecular weight of the residual PS in the frass compared with the feed Styrofoam. When the extracted gut flora was cultured for 20 days with PS films, biofilm and cavities were observed by scanning electron microscopy and atomic force microscopy. X-ray photoelectron spectroscopy (XPS) studies revealed that C-O bonding was introduced into the biodegraded PS film. Serratia sp. strain WSW (KCTC 82146), which was isolated from the gut flora, also formed a biofilm and cavities on the PS film in 20 days, but its degradation was less prominent than the gut flora. XPS confirmed that C-O and C=O bonds were introduced into the biodegraded PS film by Serratia sp. WSW. Microbial community analysis revealed that Serratia was in the gut flora in significant amounts and increased sixfold when the larvae were fed Styrofoam for 2 weeks. This suggests that P. davidis larvae and its gut bacteria could be used to chemically modify and rapidly degrade PS.IMPORTANCE PS is widely produced in the modern world, but it is robust against biodegradation. A few studies reported the biodegradation of PS, but most of them merely observed its weight loss; fewer were able to find its chemical modifications, which are rather direct evidence of biodegradation, by using limited organisms. Therefore, it is required to find an effective way to decompose PS using various kinds of organisms. Herein, we discovered a new PS-degrading insect species and bacterial strain, and we found that the genus that includes the PS-degrading bacterial strain occurs in significant amounts in the larval gut flora, and the proportion of this genus increased as the larvae were fed Styrofoam. Our research offers a wider selection of PS-degrading insects and the possibility of using a certain mixture of bacteria that resemble the gut flora of a PS-degrading insect to biodegrade PS, and thus could contribute to solving the global plastic crisis.
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Affiliation(s)
- Seongwook Woo
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, Republic of Korea
| | - Intek Song
- Department of Applied Chemistry, Andong National University, Andong, Republic of Korea
| | - Hyung Joon Cha
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, Republic of Korea
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20
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Recent advances in the biodegradation of polychlorinated biphenyls. World J Microbiol Biotechnol 2020; 36:145. [PMID: 32862310 DOI: 10.1007/s11274-020-02922-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 08/22/2020] [Indexed: 12/22/2022]
Abstract
Polychlorinated biphenyls (PCBs) are typical lasting organic pollutants. Persistence and recalcitrance to biodegradation of PCBs have hampered the transformation of PCB congeners from the environment. Biological transformation of polychlorinated biphenyls could take place through anaerobic dechlorination, aerobic microbial degradation, and a combination of transformation of anaerobic dechlorination and aerobic degradation. Under anaerobic conditions, microbial dechlorination is an important degradation mode for PCBs, especially high-chlorinated congeners. The low-chlorinated compounds formed after reductive dechlorination could be further aerobically degraded and completely mineralized. This paper reviews the recent advances in biological degradation of PCBs, introduces the functional bacteria and enzymes involved in the anaerobic and aerobic degradation of PCBs, and discusses the synergistic action of anaerobic reduction and aerobic degradation. In addition, the different ways to the microbial remediation of PCBs-contaminated environments are discussed. This review provides a theoretical foundation and practical basis to use PCBs-degrading microorganisms for bioremediation.
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21
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Purnomo AS, Sariwati A, Kamei I. Synergistic interaction of a consortium of the brown-rot fungus Fomitopsis pinicola and the bacterium Ralstonia pickettii for DDT biodegradation. Heliyon 2020; 6:e04027. [PMID: 32548317 PMCID: PMC7284076 DOI: 10.1016/j.heliyon.2020.e04027] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 01/08/2020] [Accepted: 05/15/2020] [Indexed: 01/31/2023] Open
Abstract
1,1,1-Trichloro-2,2-bis (4-chlorophenyl) ethane (DDT) is a toxic and recalcitrant pesticide that has been greatly used to eradicate malaria mosquitos since the 1940s. However, the US Environmental Protection Agency banned and classified DDT as priority pollutants due to its negative impact on wildlife and human health. Considering its negative effects, it is necessary to develop effective methods of DDT degradation. A synergistic interaction of a consortium consisting of the brown-rot fungus Fomitopsis pinicola and the bacterium Ralstonia pickettii was adopted to degrade DDT. For the microbial consortia, F. pinicola was mixed with R. pickettii at 1, 3, 5, 7 and 10 ml (1 ml ≈ 1.44 × 1013 CFU) in a potato dextrose broth (PDB) medium to degrade DDT throughout the seven days incubation period. The degradation of DDT by only the fungus F. pinicola was roughly 42%, while by only R. pickettii was 31%. The addition of 3 ml of R. pickettii into F. pinicola culture presented appropriate optimization for efficient DDT degradation at roughly 61%. The DDT transformation pathway by co-inoculation of F. pinicola and R. pickettii showed that DDT was converted to 1,1-dichloro-2,2-bis(4-chlorophenyl) ethane (DDD), further transformed to 1,1-dichloro-2,2-bis(4-chlorophenyl) ethylene (DDE), and then ultimately transformed to 1-chloro-2,2-bis(4-chlorophenyl) ethylene (DDMU). These metabolites are less toxic than DDT. This research showed that R. picketti synergistically interacts with F. pinicola by enhancing DDT degradation.
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Affiliation(s)
- Adi Setyo Purnomo
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember (ITS), Kampus ITS Sukolilo, Surabaya, 60111, Indonesia
| | - Atmira Sariwati
- Department of Tiongkok Traditional Medicine, Faculty of Health Science, Institut Ilmu Kesehatan Bhakti Wiyata Kediri, Jalan KH Wahid Hasyim 65, Kediri, 64114, Indonesia
| | - Ichiro Kamei
- Department of Forest and Environmental Sciences, Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen-kibanadai-nishi, Miyazaki, 889-2192, Japan
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22
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From Laboratory Tests to the Ecoremedial System: The Importance of Microorganisms in the Recovery of PPCPs-Disturbed Ecosystems. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10103391] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The presence of a wide variety of emerging pollutants in natural water resources is an important global water quality challenge. Pharmaceuticals and personal care products (PPCPs) are known as emerging contaminants, widely used by modern society. This objective ensures availability and sustainable management of water and sanitation for all, according to the 2030 Agenda. Wastewater treatment plants (WWTP) do not always mitigate the presence of these emerging contaminants in effluents discharged into the environment, although the removal efficiency of WWTP varies based on the techniques used. This main subject is framed within a broader environmental paradigm, such as the transition to a circular economy. The research and innovation within the WWTP will play a key role in improving the water resource management and its surrounding industrial and natural ecosystems. Even though bioremediation is a green technology, its integration into the bio-economy strategy, which improves the quality of the environment, is surprisingly rare if we compare to other corrective techniques (physical and chemical). This work carries out a bibliographic review, since the beginning of the 21st century, on the biological remediation of some PPCPs, focusing on organisms (or their by-products) used at the scale of laboratory or scale-up. PPCPs have been selected on the basics of their occurrence in water resources. The data reveal that, despite the advantages that are associated with bioremediation, it is not the first option in the case of the recovery of systems contaminated with PPCPs. The results also show that fungi and bacteria are the most frequently studied microorganisms, with the latter being more easily implanted in complex biotechnological systems (78% of bacterial manuscripts vs. 40% fungi). A total of 52 works has been published while using microalgae and only in 7% of them, these organisms were used on a large scale. Special emphasis is made on the advantages that are provided by biotechnological systems in series, as well as on the need for eco-toxicological control that is associated with any process of recovery of contaminated systems.
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Sajjad W, Zheng G, Ma X, Xu W, Ali B, Rafiq M, Zada S, Irfan M, Zeman J. Dissolution of Cu and Zn-bearing ore by indigenous iron-oxidizing bacterial consortia supplemented with dried bamboo sawdust and variations in bacterial structural dynamics: A new concept in bioleaching. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 709:136136. [PMID: 31884267 DOI: 10.1016/j.scitotenv.2019.136136] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 11/19/2019] [Accepted: 12/14/2019] [Indexed: 06/10/2023]
Abstract
Disposing of low-grade ores involves numerous environmental issues. Bioleaching with acidophilic bacteria is the preferred solution to process these ores for metals recovery. In this study, indigenous iron-oxidizing bacteria Acidithiobacillus ferrooxidans, Leptospirillum ferriphilum, and Leptospirillum ferrooxidans were used in consortia supplemented with acid-treated bamboo sawdust (BSD) for copper and zinc recovery. Findings showed the extreme catalytic response of BSD with the best recovery of metals. Maximum of 92.2 ± 4.0% copper (0.35%) and 90.0 ± 5.4% zinc (0.33%) were recovered after 8 days of processing in the presence of 2 g/L BSD. Significant variations were reported in physicochemical parameters during bioleaching in the presence of a different concentration of BSD. Fourier Transform Infrared spectroscopy results of bioleached residues showed significant variations in spectral pattern and maximum variations were reported in 2.0 g/L BSD, which indicates maximum metals dissolutions. The impact of bacterial consortia and BSD on iron speciation of bioleached ores was analyzed by using Mössbauer spectroscopy and clear variations in iron speciation were reported. Furthermore, the bacterial community structure dynamics revealed significant variations in the individual bacterial proportion in each experiment. This finding shows that the dosage concentration of BSD influenced the microenvironment, which effect the bacterial abundance and these variations in the bacterial structural communities were not associated with the initial proportion of bacterial cells inoculated in the bioleaching process. Moreover, the mechanism of chemical reactions was proposed by explaining the possible role of BSD as a reductant under micro-aerophilic conditions that facilitates the bacterial reduction of ferric iron. This type of bioleaching process with indigenous iron-oxidizing bacteria and BSD has significant potential to further upscale the bioleaching process for recalcitrant ore bodies in an environment friendly and cost-effective way.
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Affiliation(s)
- Wasim Sajjad
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Petroleum Resources, Gansu Province, Lanzhou 730000, China; State Key Laboratory of Cryosphere Science, Northwest Institute of Eco-Environment and Resources, University of Chinese Academy of Sciences, Lanzhou, China
| | - Guodong Zheng
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Petroleum Resources, Gansu Province, Lanzhou 730000, China.
| | - Xiangxian Ma
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Petroleum Resources, Gansu Province, Lanzhou 730000, China
| | - Wang Xu
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Petroleum Resources, Gansu Province, Lanzhou 730000, China
| | - Barkat Ali
- State Key Laboratory of Cryosphere Science, Northwest Institute of Eco-Environment and Resources, University of Chinese Academy of Sciences, Lanzhou, China
| | - Muhammad Rafiq
- Department of Microbiology, Faculty of Life Sciences and Informatics, Balochistan University of IT, Engineering and Management Sciences, Quetta, Pakistan
| | - Sahib Zada
- Department of Biology, College of Science, Shantou University, Shantou, China
| | - Muhammad Irfan
- Department of Microbiology and Cell Science Genetics Institute and Institute of Food and Agricultural Science, University of Florida, Gainesville, FL, United States of America
| | - Josef Zeman
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Petroleum Resources, Gansu Province, Lanzhou 730000, China; Department of Geological Sciences, Faculty of Science, Masaryk University, Kotlářská 267/2, 611 37 Brno, Czech Republic
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Šlosarčíková P, Plachá D, Malachová K, Rybková Z, Novotný Č. Biodegradation of Reactive Orange 16 azo dye by simultaneous action of Pleurotus ostreatus and the yeast Candida zeylanoides. Folia Microbiol (Praha) 2020; 65:629-638. [PMID: 31970597 DOI: 10.1007/s12223-019-00767-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 12/23/2019] [Indexed: 02/06/2023]
Abstract
The purpose was to investigate a simultaneous biodegradation of the recalcitrant monoazo dye Reactive Orange 16 (RO16) in a mixed culture consisting of a biofilm of Pleurotus ostreatus-colonizing polyamide carrier and a suspension of the yeast Candida zeylanoides to see their biological interactions and possible synergistic action during degradation. Decolorization in the mixed culture was more effective than in the fungal monoculture, the respective decolorizations reaching 87.5% and 70% on day 11. The proliferation of yeast was reduced compared with the C. zeylanoides monoculture but enabled the yeast to participate in decolorization. The interaction of P. ostreatus with the yeast resulted in a gradual decrease of fungal manganese-dependent peroxidase (MnP) and laccase activities. Gas chromatography-mass spectrometry (GC-MS) analysis of the degradation products brought evidence that P. ostreatus split the dye molecule asymmetrically to provide 4-(ethenylsulfonyl) benzene whose concentration was much decreased in the mixed culture suggesting its increased metabolization in the presence of the yeast. In contrast, C. zeylanoides split the azo bond symmetrically producing the metabolites 4-(ethenylsulfonyl) aniline and α-hydroxybenzenepropanoic acid. Those metabolites were rapidly degraded in the mixed culture. A novel aspect is represented by the evidence of a mutual cooperative action of the fungal and yeast microorganisms in the mixed culture resulting in rapid decolorization and degradation of the dye.
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Affiliation(s)
- Pavlína Šlosarčíková
- Department of Biology and Ecology, Faculty of Science, University of Ostrava, Chittussiho 10, 710 00, Slezská Ostrava, Czech Republic.
| | - Daniela Plachá
- Nanotechnology Centre VŠB-Technical University of Ostrava, 17. listopadu 15/2172, 708 33, Ostrava-Poruba, Czech Republic
| | - Kateřina Malachová
- Department of Biology and Ecology, Faculty of Science, University of Ostrava, Chittussiho 10, 710 00, Slezská Ostrava, Czech Republic
| | - Zuzana Rybková
- Department of Biology and Ecology, Faculty of Science, University of Ostrava, Chittussiho 10, 710 00, Slezská Ostrava, Czech Republic
| | - Čeněk Novotný
- Department of Biology and Ecology, Faculty of Science, University of Ostrava, Chittussiho 10, 710 00, Slezská Ostrava, Czech Republic.,Laboratory of Environmental Biotechnology, Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague 4, Czech Republic
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25
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Kang D, Jacquiod S, Herschend J, Wei S, Nesme J, Sørensen SJ. Construction of Simplified Microbial Consortia to Degrade Recalcitrant Materials Based on Enrichment and Dilution-to-Extinction Cultures. Front Microbiol 2020; 10:3010. [PMID: 31998278 PMCID: PMC6968696 DOI: 10.3389/fmicb.2019.03010] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 12/16/2019] [Indexed: 01/21/2023] Open
Abstract
The capacity of microbes to degrade recalcitrant materials has been extensively explored for environmental remediation and industrial production. Significant achievements have been made with single strains, but focus is now going toward the use of microbial consortia owning to their functional stability and efficiency. However, assembly of simplified microbial consortia (SMC) from complex environmental communities is still far from trivial due to large diversity and the effect of biotic interactions. Here we propose a strategy, based on enrichment and dilution-to-extinction cultures, to construct SMC with reduced diversity for degradation of keratinous materials. Serial dilutions were performed on a keratinolytic microbial consortium pre-enriched from a soil sample, monitoring the dilution effect on community growth and enzymatic activities. An appropriate dilution regime (10-9) was selected to construct a SMC library from the enriched microbial consortium. Further sequencing analysis and keratinolytic activity assays demonstrated that obtained SMC displayed actual reduced microbial diversity, together with various taxonomic composition, and biodegradation capabilities. More importantly, several SMC possessed equivalent levels of keratinolytic efficiency compared to the initial consortium, showing that simplification can be achieved without loss of function and efficiency. This methodology is also applicable to other types of recalcitrant material degradation involving microbial consortia, thus considerably broadening its application scope.
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Affiliation(s)
- Dingrong Kang
- Section of Microbiology, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Samuel Jacquiod
- Section of Microbiology, Department of Biology, University of Copenhagen, Copenhagen, Denmark
- Agroécologie, AgroSup Dijon, INRAE Centre Dijon, Université de Bourgogne, Université de Bourgogne Franche-Comté, Besançon, France
| | - Jakob Herschend
- Section of Microbiology, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Shaodong Wei
- Section of Microbiology, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Joseph Nesme
- Section of Microbiology, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Søren J. Sørensen
- Section of Microbiology, Department of Biology, University of Copenhagen, Copenhagen, Denmark
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26
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Distinct Bacterial Consortia Established in ETBE-Degrading Enrichments from a Polluted Aquifer. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9204247] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Ethyl tert-butyl ether (ETBE) is a gasoline additive that became an important aquifer pollutant. The information about natural bacterial consortia with a capacity for complete ETBE degradation is limited. Here we assess the taxonomical composition of bacterial communities and diversity of the ethB gene (involved in ETBE biodegradation) in ETBE-enrichment cultures that were established from a gasoline-polluted aquifer, either from anoxic ETBE-polluted plume water (PW), or from an upstream non-polluted water (UW). We used a 16S rRNA microarray, and 16S rRNA and ethB gene sequencing. Despite the dissimilar initial chemical conditions and microbial composition, ETBE-degrading consortia were obtained from both PW and UW. The composition of ETBE-enrichment cultures was distinct from their initial water samples, reflecting the importance of the rare biosphere as a reservoir of potential ETBE degraders. No convergence was observed between the enrichment cultures originating from UW and PW, which were dominated by Mesorhizobium and Hydrogenophaga, respectively, indicating that distinct consortia with the same functional properties may be present at one site. Conserved ethB genes were evidenced in both PW and UW ETBE-enrichment cultures and in PW water. Our results suggest that the presence of ethB genes rather than the taxonomical composition of in situ bacterial communities indicate the potential for the ETBE degradation at a given site.
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27
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Qi M, Huang H, Zhang Y, Wang H, Li H, Lu Z. Novel tetrahydrofuran (THF) degradation-associated genes and cooperation patterns of a THF-degrading microbial community as revealed by metagenomic. CHEMOSPHERE 2019; 231:173-183. [PMID: 31129398 DOI: 10.1016/j.chemosphere.2019.05.137] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/29/2019] [Accepted: 05/17/2019] [Indexed: 06/09/2023]
Abstract
Our understanding of the tetrahydrofuran (THF) degradation in complex environment is limited. The majority of THF degrading genes reported are group V soluble diiron monooxygenases and share greater than 95% homology with one another. In this study, we used sole-carbon-source incubation combined with high-throughput metagenomic sequencing to investigate this contaminant's degradation in environmental samples. We identified as-yet-uncultivated microbe from the genera Pseudonocardia and fungi Scedosporium sp. (Scedosporium sp. was successfully isolated) as THF degraders as containing THF degradation genes, while microbes from the genera Bordetella, Pandoraea and Rhodanobacter functioned as main cooperators by utilizing acidic intermediates and providing anti-acid mechanisms. Furthermore, a 9387-bp THF degradation cluster designated thmX from the as-yet-uncultivated Pseudonocardia (with 6 main ORFs and with 79-93% amino acid sequence identity with previously reported clusters) was discovered. We also found a THF-degrading related cytochrome P450 monooxygenase from the genus Scedosporium and predicted its cognate reductase for the first time. All the genes and clusters mentioned above were successfully amplified from samples and cloned into the suitable expression vectors. This study will provide novel insights for understanding of THF degradation mechanisms under acid stress conditions and mining new THF degradation genes.
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Affiliation(s)
- Minbo Qi
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Hui Huang
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Ying Zhang
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Haixia Wang
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Hanbo Li
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Zhenmei Lu
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, 310058, PR China. http://
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28
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Patel AB, Singh S, Patel A, Jain K, Amin S, Madamwar D. Synergistic biodegradation of phenanthrene and fluoranthene by mixed bacterial cultures. BIORESOURCE TECHNOLOGY 2019; 284:115-120. [PMID: 30927648 DOI: 10.1016/j.biortech.2019.03.097] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 03/16/2019] [Accepted: 03/19/2019] [Indexed: 05/22/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are highly recalcitrant compounds and difficult to degrade. Therefore in this work, using a bioremediation approach, mixed bacterial cultures (ASPF) was developed and enriched from polluted marine sediments capable of degrading 400 mg/L of phenanthrene and fluoranthene in Bushnell Hass medium. ASPF consists of 22 bacterial genera dominated by Azoarcus and Chelativorans. The biostimulation effect of three water soluble fertilizers (NPK, urea, and ammonium sulfate) showed that NPK and ammonium sulfate have enhanced the degradation, whereas urea has decreased their degradation. ASPF was also able to degrade phenanthrene and fluoranthene in the presence of petroleum hydrocarbons. But degradation was found to decrease in the presence of pathway intermediates (phthalic acid and catechol) due to enzymatic feedback inhibition. Optimum degradation of both PAHs was observed under room temperature, suggesting the practical applicability of ASPF.
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Affiliation(s)
- Avani Bharatkumar Patel
- Department of Biosciences, UGC Center of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol 388 315, Anand, Gujarat, India
| | - Shilpi Singh
- Department of Biosciences, UGC Center of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol 388 315, Anand, Gujarat, India
| | - Aaishwarya Patel
- P D Patel Institute of Applied Sciences, Charotar University of Science and Technology, Charusat Campus, Changa 388 421, Anand, Gujarat, India
| | - Kunal Jain
- Department of Biosciences, UGC Center of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol 388 315, Anand, Gujarat, India
| | - Seema Amin
- P D Patel Institute of Applied Sciences, Charotar University of Science and Technology, Charusat Campus, Changa 388 421, Anand, Gujarat, India
| | - Datta Madamwar
- Department of Biosciences, UGC Center of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol 388 315, Anand, Gujarat, India.
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Xia M, Fu D, Chakraborty R, Singh RP, Terry N. Enhanced crude oil depletion by constructed bacterial consortium comprising bioemulsifier producer and petroleum hydrocarbon degraders. BIORESOURCE TECHNOLOGY 2019; 282:456-463. [PMID: 30889537 DOI: 10.1016/j.biortech.2019.01.131] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 01/25/2019] [Accepted: 01/28/2019] [Indexed: 05/26/2023]
Abstract
The aim of this work was to study the production of bioemulsifier by Rhodococcus erythropolis OSDS1, and the improvement of crude oil depletion efficiency using a consortium of petroleum hydrocarbon degraders and OSDS1. The results showed that R. erythropolis OSDS1 produced highly stable bioemulsifier under various salinity (0-35 g/L NaCl) and pH (5.0-9.0) conditions; more than 90% of the initial emulsification activity was retained after 168 h. Emulsification capacity of the bioemulsifier on different petroleum hydrocarbons was diesel > mineral oil/crude oil > gasoline. A mixed bacterial consortium combining OSDS1 and four other petroleum hydrocarbon degraders was constructed. GC-MS results revealed that the constructed consortium achieved 85.26% depletion efficiency of crude oil in 15 days, which was significantly higher than that of individual strains. During the process, alkane hydroxylase gene (alkB) was successfully amplified from the consortium, confirming presence of crude oil degrading enzymes.
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Affiliation(s)
- Mingqian Xia
- School of Civil Engineering, Southeast University, Nanjing, Jiangsu 210096, China; Lawrence Berkeley National Laboratory, Berkeley, CA, United States; Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720-3102, United States
| | - Dafang Fu
- School of Civil Engineering, Southeast University, Nanjing, Jiangsu 210096, China.
| | - Romy Chakraborty
- Lawrence Berkeley National Laboratory, Berkeley, CA, United States
| | | | - Norman Terry
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720-3102, United States
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Mir-Tutusaus JA, Parladé E, Villagrasa M, Barceló D, Rodríguez-Mozaz S, Martínez-Alonso M, Gaju N, Sarrà M, Caminal G. Long-term continuous treatment of non-sterile real hospital wastewater by Trametes versicolor. J Biol Eng 2019; 13:47. [PMID: 31160922 PMCID: PMC6542094 DOI: 10.1186/s13036-019-0179-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 05/15/2019] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Hospital wastewater is commonly polluted with high loads of pharmaceutically active compounds, which pass through wastewater treatment plants (WWTPs) and end up in water bodies, posing ecological and health risks. White-rot fungal treatments can cope with the elimination of a wide variety of micropollutants while remaining ecologically and economically attractive. Unfortunately, bacterial contamination has impeded so far a successful implementation of fungal treatment for real applications. RESULTS This work embodied a 91-day long-term robust continuous fungal operation treating real non-sterile hospital wastewater in an air pulsed fluidized bed bioreactor retaining the biomass. The hydraulic retention time was 3 days and the ageing of the biomass was avoided through partial periodic biomass renovation resulting in a cellular retention time of 21 days. Evolution of microbial community and Trametes abundance were evaluated. CONCLUSIONS The operation was able to maintain an average pharmaceutical load removal of over 70% while keeping the white-rot fungus active and predominant through the operation.
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Affiliation(s)
- Josep Anton Mir-Tutusaus
- Departament d’Enginyeria Química Biològica i Ambiental, Escola d’Enginyeria, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Eloi Parladé
- Departament de Genètica i Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Marta Villagrasa
- Catalan Institute for Water Research (ICRA), Scientific and Technological Park of the University of Girona, H2O Building, Emili Grahit 101, 17003 Girona, Spain
| | - Damià Barceló
- Catalan Institute for Water Research (ICRA), Scientific and Technological Park of the University of Girona, H2O Building, Emili Grahit 101, 17003 Girona, Spain
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA), Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Sara Rodríguez-Mozaz
- Catalan Institute for Water Research (ICRA), Scientific and Technological Park of the University of Girona, H2O Building, Emili Grahit 101, 17003 Girona, Spain
| | - Maira Martínez-Alonso
- Departament de Genètica i Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Núria Gaju
- Departament de Genètica i Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Montserrat Sarrà
- Departament d’Enginyeria Química Biològica i Ambiental, Escola d’Enginyeria, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Glòria Caminal
- Institut de Química Avançada de Catalunya (IQAC) CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
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Ogawa N, Kato H, Kishida K, Ichihashi E, Ishige T, Yoshikawa H, Nagata Y, Ohtsubo Y, Tsuda M. Suppression of substrate inhibition in phenanthrene-degrading Mycobacterium by co-cultivation with a non-degrading Burkholderia strain. MICROBIOLOGY-SGM 2019; 165:625-637. [PMID: 30994434 DOI: 10.1099/mic.0.000801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In natural environments contaminated by recalcitrant organic pollutants, efficient biodegradation of such pollutants has been suggested to occur through the cooperation of different bacterial species. A phenanthrene-degrading bacterial consortium, MixEPa4, from polluted soil was previously shown to include a phenanthrene-degrading strain, Mycobacterium sp. EPa45, and a non-polycyclic aromatic hydrocarbon (PAH)-degrading strain, Burkholderia sp. Bcrs1W. In this study, we show that addition of phenanthrene to rich liquid medium resulted in the transient growth arrest of EPa45 during its degradation of phenanthrene. RNA-sequencing analysis of the growth-arrested cells showed the phenanthrene-dependent induction of genes that were predicted to be involved in the catabolism of this compound, and many other cell systems, such as a ferric iron-uptake, were up-regulated, implying iron deficiency of the cells. This negative effect of phenanthrene became much more apparent when using phenanthrene-containing minimal agar medium; colony formation of EPa45 on such agar was significantly inhibited in the presence of phenanthrene and its intermediate degradation products. However, growth inhibition was suppressed by the co-residence of viable Bcrs1W cells. Various Gram-negative bacterial strains, including the three other strains from MixEPa4, also exhibited varying degrees of suppression of the growth inhibition effect on EPa45, strongly suggesting that this effect is not strain-specific. Growth inhibition of EPa45 was also observed by other PAHs, biphenyl and naphthalene, and these two compounds and phenanthrene also inhibited the growth of another mycobacterial strain, M. vanbaalenii PYR-1, that can use them as carbon sources. These phenomena of growth inhibition were also suppressed by Bcrs1W. Our findings suggest that, in natural environments, various non-PAH-degrading bacterial strains play potentially important roles in the facilitation of PAH degradation by the co-residing mycobacteria.
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Affiliation(s)
- Natsumi Ogawa
- 1 Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan
| | - Hiromi Kato
- 1 Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan
| | - Kouhei Kishida
- 1 Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan
| | - Eikichi Ichihashi
- 1 Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan
| | - Taichiro Ishige
- 2 Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Tokyo 156-8502, Japan
| | - Hirofumi Yoshikawa
- 2 Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Tokyo 156-8502, Japan
| | - Yuji Nagata
- 1 Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan
| | - Yoshiyuki Ohtsubo
- 1 Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan
| | - Masataka Tsuda
- 1 Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan
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Copete-Pertuz LS, Alandete-Novoa F, Plácido J, Correa-Londoño GA, Mora-Martínez AL. Enhancement of ligninolytic enzymes production and decolourising activity in Leptosphaerulina sp. by co-cultivation with Trichoderma viride and Aspergillus terreus. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 646:1536-1545. [PMID: 30235638 DOI: 10.1016/j.scitotenv.2018.07.387] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 07/27/2018] [Accepted: 07/27/2018] [Indexed: 06/08/2023]
Abstract
This work investigated fungal co-culture as inducer of ligninolytic enzymes and decolourising activity in the Colombian strain Leptosphaerulina sp., an ascomycete white-rot fungus isolated from lignocellulosic material. Aspergillus niger, Aspergillus fumigatus, Aspergillus terreus, Trichoderma viride, Fusarium sp. and Penicillium chrysogenum were tested as Leptosphaerulina sp. inducers. The best fungal combinations in terms of enzyme production, fungal growth and decolourising activity were selected from solid media experiments. Response surface methodology (RSM) was utilised to optimise enzyme production and decolourising activity in liquid media. Solid media assays evidenced T. viride and A. terreus as the best Leptosphaerulina sp. inducers. The RSM identified a triple co-culture inoculated with T. viride (1000 μL) and A. terreus (1000 μL) into a 7-day culture of Leptosphaerulina sp. as the best treatment. This triple combination significantly improved ligninolytic enzymes production and Reactive Black 5 dye removal when compared to the Leptosphaerulina sp. monoculture and previously used chemical inducers. These results demonstrated the potential of fungal co-culture as an environmentally-friendly method to enhance Leptosphaerulina sp. enzymes production and decolourising activity.
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Affiliation(s)
- Ledys S Copete-Pertuz
- Grupo de Investigación Producción, Estructura y Aplicación de Biomoléculas (PROBIOM), Escuela de Química, Facultad de Ciencias, Universidad Nacional de Colombia - Sede Medellín, Calle 59A No 63 - 20, Medellín, Colombia
| | - Felipe Alandete-Novoa
- Grupo de Investigación Producción, Estructura y Aplicación de Biomoléculas (PROBIOM), Escuela de Química, Facultad de Ciencias, Universidad Nacional de Colombia - Sede Medellín, Calle 59A No 63 - 20, Medellín, Colombia
| | - Jersson Plácido
- Centre for Cytochrome P450 Biodiversity, Institute of Life Science, Medical School, Swansea University, Swansea SA2 8PP, Wales, UK
| | - Guillermo A Correa-Londoño
- Departamento de Ciencias Agronómicas, Facultad de Ciencias Agrarias, Universidad Nacional de Colombia - Sede Medellín, Calle 59A No 63 - 20, Medellín, Colombia
| | - Amanda L Mora-Martínez
- Grupo de Investigación Producción, Estructura y Aplicación de Biomoléculas (PROBIOM), Escuela de Química, Facultad de Ciencias, Universidad Nacional de Colombia - Sede Medellín, Calle 59A No 63 - 20, Medellín, Colombia.
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Aldhafiri S, Mahmoud H, Al-Sarawi M, Ismail WA. Natural Attenuation Potential of Polychlorinated Biphenyl-Polluted Marine Sediments. Pol J Microbiol 2018; 67:37-48. [DOI: 10.5604/01.3001.0011.6140] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/25/2017] [Indexed: 12/23/2022] Open
Abstract
The marine environment in Kuwait is polluted with various hazardous chemicals of industrial origin. These include petroleum hydrocarbons, halogenated compounds and heavy metals. Bioremediation with dedicated microorganisms can be effectively applied for reclamation of the polluted marine sediments. However, information on the autochthonous microbes and their ecophysiology is largely lacking. We analyzed sediments from Shuwaikh harbor to detect polychlorinated biphenyls (PCBs) and total petroleum hydrocarbons (TPHs). Then we adopted both culture-dependent and culture-independent (PCR-DGGE) approaches to identify bacterial inhabitants of the polluted marine sediments from Shuwaikh harbor. The chemical analysis revealed spatial variation among the sampling stations in terms of total amount of PCBs, TPHs and the PCB congener fingerprints. Moreover, in all analyzed sediments, the medium-chlorine PCB congeners were more abundant than the low-chlorine and high-chlorine counterparts. PCR-DGGE showed the presence of members of the Proteobacteria, Spirochaetes, Firmicutes and Bacteroidetes in the analyzed sediments. However, Chloroflexi-related bacteria dominated the detected bacterial community. We also enriched a biphenyl-utilizing mixed culture using the W2 station sediment as an inoculum in chemically defined medium using biphenyl as a sole carbon and energy source. The enriched mixed culture consisted mainly of the Firmicute Paenibacillus spp. Sequences of genes encoding putative aromatic ring-hydroxylating dioxygenases were detected in sediments from most sampling stations and the enriched mixed culture. The results suggest the potential of bioremediation as a means for natural attenuation of Shuwaikh harbor sediments polluted with PCBs and TPHs.
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Affiliation(s)
- Sarah Aldhafiri
- Environmental Biotechnology Program, Life Sciences Department, College of Graduate Studies, Arabian Gulf University, Manama, Kingdom of Bahrain
| | - Huda Mahmoud
- Department of Biological Sciences, College of Science, Kuwait University, Kuwait
| | - Mohammed Al-Sarawi
- Department of Earth and Environmental Sciences, College of Science, Kuwait University, Kuwait
| | - Wael A. Ismail
- Environmental Biotechnology Program, Life Sciences Department, College of Graduate Studies, Arabian Gulf University, Manama, Kingdom of Bahrain
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Maganha de Almeida AC, Backhaus J, Corso CR. Recycling food waste to clean water: the use of a biodigester's residual liquid inoculum (RLI) to decolourise textile azo dyes. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2018; 77:398-408. [PMID: 29377824 DOI: 10.2166/wst.2017.546] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A residual liquid inoculum (RLI) was used to decolourise solutions of Acid Yellow 25 (AY25) and Direct Violet 51 (DV51) azo dyes. The RLI was obtained through anaerobic digestion of food waste from a university restaurant. The concentration of bacteria in the RLI was 8.45 × 107 CFU mL-1. Dye solutions (50 μg mL-1) were inoculated with the RLI (20% v/v) and incubated at room temperature. The decolourisation studies took place at microaerophilic and in-batch conditions and at pH = 2.50. Initially, the dyes were taken up from solution by biosorption; maximum colour removal was achieved after 3 hours of incubation, with 88.66% for AY25 and 77.65% of DV51. At prolonged incubation times (3-96 hours) decolourisation was mainly attributed to biodegradation of the azo solutions, with breakage of the azo bond, as detected by UV-VIS spectroscopy and Fourier transform infrared (FT-IR) analysis. Analysis of UV-VIS absorption rates of dyes showed, however, that AY25 was more readily biodegradable whereas DV51 was more recalcitrant to the action of the RLI.
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Affiliation(s)
- A C Maganha de Almeida
- Biochemistry and Microbiology Department, Biological Sciences Institute, São Paulo State University - UNESP - Av 24A, 1515 CEP 13.506-900, Rio Claro, São Paulo, Brazil E-mail:
| | - J Backhaus
- Institute for Instrumental Analysis and Bioanalysis, Mannheim University of Applied Sciences, Windeckstraße 110, Mannheim 68163, Germany
| | - C R Corso
- Biochemistry and Microbiology Department, Biological Sciences Institute, São Paulo State University - UNESP - Av 24A, 1515 CEP 13.506-900, Rio Claro, São Paulo, Brazil E-mail:
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Liu Z, He Z, Huang H, Ran X, Oluwafunmilayo AO, Lu Z. pH Stress-Induced Cooperation between Rhodococcus ruber YYL and Bacillus cereus MLY1 in Biodegradation of Tetrahydrofuran. Front Microbiol 2017; 8:2297. [PMID: 29209303 PMCID: PMC5702389 DOI: 10.3389/fmicb.2017.02297] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 11/07/2017] [Indexed: 11/28/2022] Open
Abstract
Microbial consortia consisting of cooperational strains exhibit biodegradation performance superior to that of single microbial strains and improved remediation efficiency by relieving the environmental stress. Tetrahydrofuran (THF), a universal solvent widely used in chemical and pharmaceutical synthesis, significantly affects the environment. As a refractory pollutant, THF can be degraded by some microbial strains under suitable conditions. There are often a variety of stresses, especially pH stress, that inhibit the THF-degradation efficiency of microbial consortia. Therefore, it is necessary to study the molecular mechanisms of microbial cooperational degradation of THF. In this study, under conditions of low pH (initial pH = 7.0) stress, a synergistic promotion of the THF degradation capability of the strain Rhodococcus ruber YYL was found in the presence of a non-THF degrading strain Bacillus cereus MLY1. Metatranscriptome analysis revealed that the low pH stress induced the strain YYL to up-regulate the genes involved in anti-oxidation, mutation, steroid and bile acid metabolism, and translation, while simultaneously down-regulating the genes involved in ATP production. In the co-culture system, strain MLY1 provides fatty acids, ATP, and amino acids for strain YYL in response to low pH stress during THF degradation. In return, YYL shares the metabolic intermediates of THF with MLY1 as carbon sources. This study provides the preliminary mechanism to understand how microbial consortia improve the degradation efficiency of refractory furan pollutants under environmental stress conditions.
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Affiliation(s)
- Zubi Liu
- College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Zhixing He
- College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Hui Huang
- College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Xuebin Ran
- College of Life Sciences, Zhejiang University, Hangzhou, China
| | | | - Zhenmei Lu
- College of Life Sciences, Zhejiang University, Hangzhou, China
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Antwis RE, Griffiths SM, Harrison XA, Aranega-Bou P, Arce A, Bettridge AS, Brailsford FL, de Menezes A, Devaynes A, Forbes KM, Fry EL, Goodhead I, Haskell E, Heys C, James C, Johnston SR, Lewis GR, Lewis Z, Macey MC, McCarthy A, McDonald JE, Mejia-Florez NL, O'Brien D, Orland C, Pautasso M, Reid WDK, Robinson HA, Wilson K, Sutherland WJ. Fifty important research questions in microbial ecology. FEMS Microbiol Ecol 2017; 93:3098413. [PMID: 28379446 DOI: 10.1093/femsec/fix044] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 03/31/2017] [Indexed: 11/13/2022] Open
Abstract
Microbial ecology provides insights into the ecological and evolutionary dynamics of microbial communities underpinning every ecosystem on Earth. Microbial communities can now be investigated in unprecedented detail, although there is still a wealth of open questions to be tackled. Here we identify 50 research questions of fundamental importance to the science or application of microbial ecology, with the intention of summarising the field and bringing focus to new research avenues. Questions are categorised into seven themes: host-microbiome interactions; health and infectious diseases; human health and food security; microbial ecology in a changing world; environmental processes; functional diversity; and evolutionary processes. Many questions recognise that microbes provide an extraordinary array of functional diversity that can be harnessed to solve real-world problems. Our limited knowledge of spatial and temporal variation in microbial diversity and function is also reflected, as is the need to integrate micro- and macro-ecological concepts, and knowledge derived from studies with humans and other diverse organisms. Although not exhaustive, the questions presented are intended to stimulate discussion and provide focus for researchers, funders and policy makers, informing the future research agenda in microbial ecology.
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Affiliation(s)
- Rachael E Antwis
- School of Environment and Life Sciences, University of Salford, The Crescent, Salford M5 4WT, UK
| | - Sarah M Griffiths
- School of Science and the Environment, Manchester Metropolitan University, Manchester, Greater Manchester M1 5GD, UK
| | - Xavier A Harrison
- Institute of Zoology, Zoological Society of London, London, London NW1 4RY, UK
| | - Paz Aranega-Bou
- School of Environment and Life Sciences, University of Salford, The Crescent, Salford M5 4WT, UK
| | - Andres Arce
- Silwood Park, Faculty of Natural Sciences, Imperial College London, London, London SW7 2AZ, UK
| | - Aimee S Bettridge
- School of Biosciences, Cardiff University, Cardiff, South Glamorgan CF10 3XQ, UK
| | - Francesca L Brailsford
- School of Environment, Natural Resources and Geography, Bangor University, Bangor, Gwynedd LL57 2DG, UK
| | - Alexandre de Menezes
- School of Environment and Life Sciences, University of Salford, The Crescent, Salford M5 4WT, UK
| | - Andrew Devaynes
- Biosciences, Edge Hill University, Ormskirk, Lancashire L39 4QP, UK
| | - Kristian M Forbes
- Department of Virology, University of Helsinki, Helsinki 00014, Finland
| | - Ellen L Fry
- School of Earth and Environmental Sciences, Faculty of Science and Engineering, University of Manchester, Manchester M13 9PT, UK
| | - Ian Goodhead
- School of Environment and Life Sciences, University of Salford, The Crescent, Salford M5 4WT, UK
| | - Erin Haskell
- Department of Biology, University of York, York, North Yorkshire YO10 5DD, UK
| | - Chloe Heys
- Institute of Integrative Biology/School of Life Sciences, University of Liverpool, Liverpool, Merseyside L69 3BX, UK
| | - Chloe James
- School of Environment and Life Sciences, University of Salford, The Crescent, Salford M5 4WT, UK
| | - Sarah R Johnston
- School of Biosciences, Cardiff University, Cardiff, South Glamorgan CF10 3XQ, UK
| | - Gillian R Lewis
- Biosciences, Edge Hill University, Ormskirk, Lancashire L39 4QP, UK
| | - Zenobia Lewis
- Institute of Integrative Biology/School of Life Sciences, University of Liverpool, Liverpool, Merseyside L69 3BX, UK
| | - Michael C Macey
- School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, UK
| | - Alan McCarthy
- Institute of Integrative Biology/School of Life Sciences, University of Liverpool, Liverpool, Merseyside L69 3BX, UK
| | - James E McDonald
- School of Biological Sciences, Bangor University, Bangor, Gwynedd LL57 2DG, UK
| | | | | | - Chloé Orland
- Department of Plant Sciences, University of Cambridge, Cambridge, Cambridgeshire CB2 1TN, UK
| | - Marco Pautasso
- Animal and Plant Health Unit, European Food Safety Authority, Parma 43126, Italy
| | - William D K Reid
- School of Biology, Newcastle University, Newcastle upon Tyne, Tyne and Wear NE1 7RU, UK
| | - Heather A Robinson
- School of Earth and Environmental Sciences, Faculty of Science and Engineering, University of Manchester, Manchester M13 9PT, UK
| | - Kenneth Wilson
- Lancaster Environment Centre, Lancaster University, Lancaster, Lancashire LA1 4YW, UK
| | - William J Sutherland
- Conservation Science Group, Department of Zoology, University of Cambridge, Cambridge, Cambridgeshire CB2 1TN, UK
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Cortes-Tolalpa L, Salles JF, van Elsas JD. Bacterial Synergism in Lignocellulose Biomass Degradation - Complementary Roles of Degraders As Influenced by Complexity of the Carbon Source. Front Microbiol 2017; 8:1628. [PMID: 29067002 PMCID: PMC5641323 DOI: 10.3389/fmicb.2017.01628] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 08/10/2017] [Indexed: 01/23/2023] Open
Abstract
Lignocellulosic biomass (LCB) is an attractive source of carbon for the production of sugars and other chemicals. Due to its inherent complexity and heterogeneity, efficient biodegradation requires the actions of different types of hydrolytic enzymes. In nature, complex microbial communities that work efficiently and often synergistically accomplish degradation. Studying such synergisms in LCB degradation is fundamental for the establishment of an optimal biological degradation process. Here, we examine the wheat straw degradation potential of synthetic microbial consortia composed of bacteria and fungi. Growth of, and enzyme secretion by, monocultures of degrader strains were studied in aerobic cultures using wheat straw as the sole carbon and energy source. To investigate synergism, co-cultures were constructed from selected strains and their performance was tested in comparison with the respective monocultures. In monoculture, each organism – with a typical enzymatic profile – was found to mainly consume the cellulose part of the substrate. One strain, Flavobacterium ginsengisoli so9, displayed an extremely high degradation capacity, as measured by its secreted enzymes. Among 13 different co-cultures, five presented synergisms. These included four bacterial bicultures and one bacterial–fungal triculture. The highest level of synergism was found in a Citrobacter freundii/Sphingobacterium multivorum biculture, which revealed an 18.2-fold increase of the produced biomass. As compared to both monocultures, this bacterial pair showed significantly increased enzymatic activities, in particular of cellobiohydrolases, mannosidases, and xylosidases. Moreover, the synergism was unique to growth on wheat straw, as it was completely absent in glucose-grown bicultures. Spent supernatants of either of the two partners were found to stimulate the growth on wheat straw of the counterpart organism, in a directional manner. Thus, the basis of the LCB-specific synergism might lie in the specific release of compounds or agents by S. multivorum w15 that promote the activity of C. freundii so4 and vice versa.
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Affiliation(s)
- Larisa Cortes-Tolalpa
- Department of Microbial Ecology, Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, Netherlands
| | - Joana F Salles
- Department of Microbial Ecology, Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, Netherlands
| | - Jan Dirk van Elsas
- Department of Microbial Ecology, Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, Netherlands
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Aissaoui S, Ouled-Haddar H, Sifour M, Beggah C, Benhamada F. Biological Removal of the Mixed Pharmaceuticals: Diclofenac, Ibuprofen, and Sulfamethoxazole Using a Bacterial Consortium. IRANIAN JOURNAL OF BIOTECHNOLOGY 2017; 15:135-142. [PMID: 29845061 DOI: 10.15171/ijb.1530] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 06/26/2016] [Accepted: 06/20/2017] [Indexed: 11/09/2022]
Abstract
Background: The presence of pharmaceuticals at low concentrations (ng to μg) in the environment has become a hot spot for researchers in the past decades due to the unknown environmental impact and the possible damages they might have to the plantae and fauna present in the aquatic systems, as well as to the other living organisms. Objectives: The aim of the present investigation was to develop a bacterial consortium isolated from different origins to evaluate the ability of such a consortium to remove a mixture of pharmaceuticals in the batch system at lab scale, as well as assessment of its resistance to the other micropollutants present in the environment. Material and Methods: Using a closed bottle test, biodegradation of the mixed pharmaceuticals including Diclofenac (DCF), Ibuprofen (IBU), and Sulfamethoxazole (SMX) (at a concentration of 3 mg.L-1 of each drug) by the bacterial consortium was investigated. The test was carried out under metabolic (pharmaceutical was used as the sole source of carbon) and co-metabolic condition (in the presence of glucose). Finally, the ability of the bacterial consortium to resist other micropollutants like antibiotics and heavy metals was investigated. Results: Under the metabolic condition, the mixed bacteria (i.e., consortium) were able to metabolize 23.08% and 9.12% of IBU, and DCF at a concentration of 3 mg.L-1 of each drug, respectively. Whereas, in co-metabolic conditions, IBU was eliminated totally, in addition, 56% of the total concentration of DCF was removed, as well. In both metabolic and cometabolic conditions, removal of SMX was not observed. The selected bacteria were able to resist to most of the applied antibiotics and the used heavy metals, except mercury, where only one strain (S4) was resistant to the later heavy metal. Conclusion: Results suggest that the developed consortium might be an excellent candidate for the application in the bioremediation process for treating ecosystems contaminated with the pharmaceutical.
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Affiliation(s)
- Salima Aissaoui
- Laboratory of Molecular Toxicology, Faculty of Nature and life Sciences, University of Mohammed Seddik Benyahia - Jijel, 98 Ouled Aissa-Jijel 1800-Algeria, Algeria
| | - Houria Ouled-Haddar
- Laboratory of Molecular Toxicology, Faculty of Nature and life Sciences, University of Mohammed Seddik Benyahia - Jijel, 98 Ouled Aissa-Jijel 1800-Algeria, Algeria.,Department of Applied Microbiology and Food Sciences, Faculty of Nature and Life Sciences, University of Mohammed Seddik BenyahiaJijel, 98 Ouled Aissa-Jijel 1800-Algeria, Algeria
| | - Mohamed Sifour
- Laboratory of Molecular Toxicology, Faculty of Nature and life Sciences, University of Mohammed Seddik Benyahia - Jijel, 98 Ouled Aissa-Jijel 1800-Algeria, Algeria.,Department of Applied Microbiology and Food Sciences, Faculty of Nature and Life Sciences, University of Mohammed Seddik BenyahiaJijel, 98 Ouled Aissa-Jijel 1800-Algeria, Algeria
| | - Chérifa Beggah
- Department of Applied Microbiology and Food Sciences, Faculty of Nature and Life Sciences, University of Mohammed Seddik BenyahiaJijel, 98 Ouled Aissa-Jijel 1800-Algeria, Algeria
| | - Farida Benhamada
- Department of Applied Microbiology and Food Sciences, Faculty of Nature and Life Sciences, University of Mohammed Seddik BenyahiaJijel, 98 Ouled Aissa-Jijel 1800-Algeria, Algeria
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Serebrennikova MK, Golovina EE, Kuyukina MS, Ivshina IB. A consortium of immobilized rhodococci for oilfield wastewater treatment in a column bioreactor. APPL BIOCHEM MICRO+ 2017. [DOI: 10.1134/s0003683817040123] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ismail WA, Van Hamme JD, Kilbane JJ, Gu JD. Editorial: Petroleum Microbial Biotechnology: Challenges and Prospects. Front Microbiol 2017; 8:833. [PMID: 28553269 PMCID: PMC5427579 DOI: 10.3389/fmicb.2017.00833] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 04/24/2017] [Indexed: 12/30/2022] Open
Affiliation(s)
- Wael A Ismail
- Environmental Biotechnology Program, Life Sciences Department, College of Graduate Studies, Arabian Gulf UniversityManama, Bahrain
| | - Jonathan D Van Hamme
- Department of Biological Sciences, Thompson Rivers UniversityKamloops, BC, Canada
| | - John J Kilbane
- Department of Biology, Illinois Institute of TechnologyChicago, IL, USA
| | - Ji-Dong Gu
- School of Biological Sciences, University of Hong KongHong Kong, Hong Kong
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Křesinová Z, Linhartová L, Filipová A, Ezechiáš M, Mašín P, Cajthaml T. Biodegradation of endocrine disruptors in urban wastewater using Pleurotus ostreatus bioreactor. N Biotechnol 2017; 43:53-61. [PMID: 28502780 DOI: 10.1016/j.nbt.2017.05.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 03/21/2017] [Accepted: 05/09/2017] [Indexed: 11/19/2022]
Abstract
The white rot fungus Pleurotus ostreatus HK 35, which is also an edible industrial mushroom commonly cultivated in farms, was tested in the degradation of typical representatives of endocrine disrupters (EDCs; bisphenol A, estrone, 17β-estradiol, estriol, 17α-ethinylestradiol, triclosan and 4-n-nonylphenol); its degradation efficiency under model laboratory conditions was greater than 90% within 12 days and better than that of another published strain P. ostreatus 3004. A spent mushroom substrate from a local farm was tested for its applicability in various batch and trickle-bed reactors in degrading EDCs in model fortified and real communal wastewater. The reactors were tested under various regimes including a pilot-scale trickle-bed reactor, which was finally tested at a wastewater treatment plant. The result revealed that the spent substrate is an efficient biodegradation agent, where the fungus was usually able to remove about 95% of EDCs together with suppression of the estrogenic activity of the sample. The results showed the fungus was able to operate in the presence of bacterial microflora in wastewater without any substantial negative effects on the degradation abilities. Finally, a pilot-scale trickle-bed reactor was installed in a wastewater treatment plant and successfully operated for 10days, where the bioreactor was able to remove more than 76% of EDCs present in the wastewater.
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Affiliation(s)
- Zdena Křesinová
- Institute of Microbiology, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, CZ-142 20 Prague 4, Czech Republic; Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, CZ-128 01 Prague 2, Czech Republic
| | - Lucie Linhartová
- Institute of Microbiology, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, CZ-142 20 Prague 4, Czech Republic
| | - Alena Filipová
- Institute of Microbiology, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, CZ-142 20 Prague 4, Czech Republic; Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, CZ-128 01 Prague 2, Czech Republic
| | - Martin Ezechiáš
- Institute of Microbiology, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, CZ-142 20 Prague 4, Czech Republic; Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, CZ-128 01 Prague 2, Czech Republic
| | - Pavel Mašín
- DEKONTA a.s., Dřetovice 109, CZ-273 42 Stehelčeves, Czech Republic
| | - Tomáš Cajthaml
- Institute of Microbiology, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, CZ-142 20 Prague 4, Czech Republic; Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, CZ-128 01 Prague 2, Czech Republic.
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Válková H, Novotný Č, Malachová K, Šlosarčíková P, Fojtík J. Effect of bacteria on the degradation ability of Pleurotus ostreatus. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 584-585:1114-1120. [PMID: 28187935 DOI: 10.1016/j.scitotenv.2017.01.171] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 12/30/2016] [Accepted: 01/25/2017] [Indexed: 05/20/2023]
Abstract
White-rot fungi are efficient degraders of lignin whose extracellular enzymes have a potential to degrade organopollutants. In natural conditions these fungi enter into interactions with other organisms, which may affect their biodegradation capacity. The aim was to investigate the ability of Pleurotus ostreatus to form stable biofilms and to test the capacity of the fungus to degrade Remazol Brilliant Blue R in mixed cultures with bacteria. Bacterial counts were determined to see the behavior of the bacterium in the mixed culture with the fungus. In axenic conditions, the homogenized fungal mycelium was able to form an active biofilm which quickly degraded the dye. The addition of Pseudomonas fluorescens or Bacillus licheniformis bacteria at 106CFU·mL-1 did not affect the decolorization rate by 7-d-old fungal biofilms where the decolorization rate reached 90%. In contrast, when fragments of the fungal mycelium were used for inoculation to pre-formed biofilm of P. fluorescens, the biofilm was allowed to develop for one week's time, no decolorization of RBBR was observed and low activities of MnP and laccase were detected. The use of agar disks covered with fungal mycelium for the inoculation to pre-formed biofilm of P. fluorescens resulted in a fully developed biofilm that decolorized RBBR with similar efficiency as the pure P. ostreatus. The difference between the agar-disk- and homogenized-mycelium inoculated fungal biofilms was corroborated by the measurement of total fungal biofilm biomass that was 6-fold lower in the latter biofilm. Capability of the fungus to overcome the competition of the bacterial biofilm thus depended on the type of fungal growth centres, where intact hyphae were superior to the fragments of mycelium. A similar effect was not observed with the biofilms of B. licheniformis where the bacterial growth was less massive. The ability of P. ostreatus biofilms to resist massive bacterial stress was demonstrated.
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Affiliation(s)
- Hana Válková
- Department of Biology and Ecology, Faculty of Science, University of Ostrava, Chittussiho 10, 710 00 Ostrava, Czech Republic.
| | - Čeněk Novotný
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague 4, Czech Republic.
| | - Kateřina Malachová
- Department of Biology and Ecology, Faculty of Science, University of Ostrava, Chittussiho 10, 710 00 Ostrava, Czech Republic.
| | - Pavlína Šlosarčíková
- Department of Biology and Ecology, Faculty of Science, University of Ostrava, Chittussiho 10, 710 00 Ostrava, Czech Republic.
| | - Jindřich Fojtík
- Department of Biology and Ecology, Faculty of Science, University of Ostrava, Chittussiho 10, 710 00 Ostrava, Czech Republic.
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Badia-Fabregat M, Lucas D, Tuomivirta T, Fritze H, Pennanen T, Rodríguez-Mozaz S, Barceló D, Caminal G, Vicent T. Study of the effect of the bacterial and fungal communities present in real wastewater effluents on the performance of fungal treatments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 579:366-377. [PMID: 27889212 DOI: 10.1016/j.scitotenv.2016.11.088] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 11/14/2016] [Accepted: 11/14/2016] [Indexed: 05/20/2023]
Abstract
The use of the ligninolytic fungi Trametes versicolor for the degradation of micropollutants has been widely studied. However, few studies have addressed the treatment of real wastewater containing pharmaceutically active compounds (PhAC) under non-sterile conditions. The main drawback of performing such treatments is the difficulty for the inoculated fungus to successfully compete with the other microorganisms growing in the bioreactor. In the present study, several fungal treatments were performed under non-sterile conditions in continuous operational mode with two types of real wastewater effluent, namely, a reverse osmosis concentrate (ROC) from a wastewater treatment plant and a veterinary hospital wastewater (VHW). In all cases, the setup consisted of two parallel reactors: one inoculated with T. versicolor and one non-inoculated, which was used as the control. The main objective of this work was to correlate the operational conditions and traditional monitoring parameters, such as laccase activity, with PhAC removal and the composition of the microbial communities developed inside the bioreactors. For that purpose a variety of biochemical and molecular biology analyses were performed: phospholipid fatty acids analysis (PLFA), quantitative PCR (qPCR) and denaturing gradient gel electrophoresis (DGGE) followed by sequencing. The results show that many indigenous fungi (and not only bacteria, which were the focus of the majority of previously published research) can successfully compete with the inoculated fungi (i.e., Trichoderma asperellum overtook T. versicolor in the ROC treatment). We also showed that the wastewater origin and the operational conditions had a stronger impact on the diversity of microbial communities developed in the bioreactors than the inoculation or not with T. versicolor.
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Affiliation(s)
- Marina Badia-Fabregat
- Departament d'Enginyeria Química, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Spain
| | - Daniel Lucas
- Catalan Institute for Water Research (ICRA), H2O Building, Scientific and Technological Park of the University of Girona, 101-E-17003 Girona, Spain
| | - Tero Tuomivirta
- Natural Resources Institute Finland (Luke), Jokiniemenkuja 1, FI-01370 Vantaa, Finland
| | - Hannu Fritze
- Natural Resources Institute Finland (Luke), Jokiniemenkuja 1, FI-01370 Vantaa, Finland
| | - Taina Pennanen
- Natural Resources Institute Finland (Luke), Jokiniemenkuja 1, FI-01370 Vantaa, Finland
| | - Sara Rodríguez-Mozaz
- Catalan Institute for Water Research (ICRA), H2O Building, Scientific and Technological Park of the University of Girona, 101-E-17003 Girona, Spain
| | - Damià Barceló
- Catalan Institute for Water Research (ICRA), H2O Building, Scientific and Technological Park of the University of Girona, 101-E-17003 Girona, Spain; Water and Soil Quality Research Group, Department of Environmental Chemistry (IDAEA-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Glòria Caminal
- Institut de Química Avançada de (IQAC) CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain.
| | - Teresa Vicent
- Departament d'Enginyeria Química, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Spain
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Thijs S, Sillen W, Weyens N, Vangronsveld J. Phytoremediation: State-of-the-art and a key role for the plant microbiome in future trends and research prospects. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2017; 19:23-38. [PMID: 27484694 DOI: 10.1080/15226514.2016.1216076] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Phytoremediation is increasingly adopted as a more sustainable approach for soil remediation. However, significant advances in efficiency are still necessary to attain higher levels of environmental and economic sustainability. Current interventions do not always give the expected outcomes in field settings due to an incomplete understanding of the multicomponent biological interactions. New advances in -omics are gradually implemented for studying microbial communities of polluted land in situ. This opens new perspectives for the discovery of biodegradative strains and provides us new ways of interfering with microbial communities to enhance bioremediation rates. This review presents retrospectives and future perspectives for plant microbiome studies relevant to phytoremediation, as well as some knowledge gaps in this promising research field. The implementation of phytoremediation in soil clean-up management systems is discussed, and an overview of the promoting factors that determine the growth of the phytoremediation market is given. Continuous growth is expected since elimination of contaminants from the environment is demanded. The evolution of scientific thought from a reductionist view to a more holistic approach will boost phytoremediation as an efficient and reliable phytotechnology. It is anticipated that phytoremediation will prove the most promising for organic contaminant degradation and bioenergy crop production on marginal land.
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Affiliation(s)
- Sofie Thijs
- a Centre for Environmental Sciences, Hasselt University , Diepenbeek , Belgium
| | - Wouter Sillen
- a Centre for Environmental Sciences, Hasselt University , Diepenbeek , Belgium
| | - Nele Weyens
- a Centre for Environmental Sciences, Hasselt University , Diepenbeek , Belgium
| | - Jaco Vangronsveld
- a Centre for Environmental Sciences, Hasselt University , Diepenbeek , Belgium
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Ma L, Wang X, Feng X, Liang Y, Xiao Y, Hao X, Yin H, Liu H, Liu X. Co-culture microorganisms with different initial proportions reveal the mechanism of chalcopyrite bioleaching coupling with microbial community succession. BIORESOURCE TECHNOLOGY 2017; 223:121-130. [PMID: 27788425 DOI: 10.1016/j.biortech.2016.10.056] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Revised: 10/12/2016] [Accepted: 10/19/2016] [Indexed: 06/06/2023]
Abstract
The effect of co-culture microorganisms with different initial proportions on chalcopyrite bioleaching was investigated. Communities were rebuilt by six typical strains isolated from the same habitat. The results indicated, by community with more sulfur oxidizers at both 30 and 40°C, the final copper extraction rate was 19.8% and 6.5% higher, respectively, than that with more ferrous oxidizers. The variations of pH, redox potential, ferrous and copper ions in leachate also provided evidences that community with more sulfur oxidizers was more efficient. Community succession of free and attached cells revealed that initial proportions played decisive roles on community dynamics at 30°C, while communities shared similar structures, not relevant to initial proportions at 40°C. X-ray diffraction analysis confirmed different microbial functions on mineral surface. A mechanism model for chalcopyrite bioleaching was established coupling with community succession. This will provide theoretical basis for reconstructing an efficient community in industrial application.
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Affiliation(s)
- Liyuan Ma
- School of Minerals Processing and Bioengineering, Central South University, 410083, China; Key Laboratory of Biometallurgy of Ministry of Education, 410083, China
| | - Xingjie Wang
- School of Minerals Processing and Bioengineering, Central South University, 410083, China
| | - Xue Feng
- School of Minerals Processing and Bioengineering, Central South University, 410083, China
| | - Yili Liang
- School of Minerals Processing and Bioengineering, Central South University, 410083, China; Key Laboratory of Biometallurgy of Ministry of Education, 410083, China
| | - Yunhua Xiao
- School of Minerals Processing and Bioengineering, Central South University, 410083, China; Key Laboratory of Biometallurgy of Ministry of Education, 410083, China
| | - Xiaodong Hao
- School of Minerals Processing and Bioengineering, Central South University, 410083, China; Key Laboratory of Biometallurgy of Ministry of Education, 410083, China
| | - Huaqun Yin
- School of Minerals Processing and Bioengineering, Central South University, 410083, China; Key Laboratory of Biometallurgy of Ministry of Education, 410083, China
| | - Hongwei Liu
- School of Minerals Processing and Bioengineering, Central South University, 410083, China; Key Laboratory of Biometallurgy of Ministry of Education, 410083, China
| | - Xueduan Liu
- School of Minerals Processing and Bioengineering, Central South University, 410083, China; Key Laboratory of Biometallurgy of Ministry of Education, 410083, China.
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Hechmi N, Bosso L, El-Bassi L, Scelza R, Testa A, Jedidi N, Rao MA. Depletion of pentachlorophenol in soil microcosms with Byssochlamys nivea and Scopulariopsis brumptii as detoxification agents. CHEMOSPHERE 2016; 165:547-554. [PMID: 27684593 DOI: 10.1016/j.chemosphere.2016.09.062] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 09/06/2016] [Accepted: 09/15/2016] [Indexed: 06/06/2023]
Abstract
Pentachlorophenol (PCP) is a toxic compound which is widely used as a wood preservative product and general biocide. It is persistent in the environment and has been classified as a persistent organic pollutant to be reclaimed in many countries. Fungal bioremediation is an emerging approach to rehabilitating areas fouled by recalcitrant xenobiotics. In the present study, we isolated two fungal strains from an artificially PCP-contaminated soil during a long-term bioremediation study and evaluated their potential as bioremediation agents in depletion and detoxification of PCP in soil microcosms. The two fungal strains were identified as: Byssochlamys nivea (Westling, 1909) and Scopulariopsis brumptii (Salvanet-Duval, 1935). PCP removal and toxicity were examined during 28 days of incubation. Bioaugmented microcosms revealed a 60% and 62% PCP removal by B. nivea and S. brumptii, respectively. Co-inoculation of B. nivea and S. brumptii showed a synergetic effect on PCP removal resulting in 95% and 80% PCP decrease when initial concentrations were 12.5 and 25 mg kg-1, respectively. Detoxification in bioaugmented soil and the efficient role of fungi in the rehabilitation of PCP contaminated soil were experimentally proven by toxicity assays. A decrease in inhibition of bioluminescence of Escherichia coli HB101 pUCD607 and an increase of germination index of mustard (Brassica alba) seeds were observed in the decontaminated soils.
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Affiliation(s)
- Nejla Hechmi
- Laboratory of Wastewater Treatment, Water Researches and Technologies Centre (CERTE), Technopole Borj Cedria BP 273, Soliman, 8020, Tunisia; National Agronomic Institute of Tunisia, 43, Avenue Charles Nicolle, 1082, Tunis-Mahrajène, Tunisia
| | - Luciano Bosso
- Dipartimento di Agraria, Università degli Studi di Napoli Federico II, via Università 100, 80055, Portici, Italy.
| | - Leila El-Bassi
- Laboratory of Wastewater Treatment, Water Researches and Technologies Centre (CERTE), Technopole Borj Cedria BP 273, Soliman, 8020, Tunisia; National Agronomic Institute of Tunisia, 43, Avenue Charles Nicolle, 1082, Tunis-Mahrajène, Tunisia
| | - Rosalia Scelza
- Dipartimento di Agraria, Università degli Studi di Napoli Federico II, via Università 100, 80055, Portici, Italy
| | - Antonino Testa
- Dipartimento di Agraria, Università degli Studi di Napoli Federico II, via Università 100, 80055, Portici, Italy
| | - Naceur Jedidi
- Laboratory of Wastewater Treatment, Water Researches and Technologies Centre (CERTE), Technopole Borj Cedria BP 273, Soliman, 8020, Tunisia
| | - Maria A Rao
- Dipartimento di Agraria, Università degli Studi di Napoli Federico II, via Università 100, 80055, Portici, Italy
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Ismail W, El-Sayed WS, Abdul Raheem AS, Mohamed ME, El Nayal AM. Biocatalytic Desulfurization Capabilities of a Mixed Culture during Non-Destructive Utilization of Recalcitrant Organosulfur Compounds. Front Microbiol 2016; 7:266. [PMID: 26973637 PMCID: PMC4776162 DOI: 10.3389/fmicb.2016.00266] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 02/18/2016] [Indexed: 01/16/2023] Open
Abstract
We investigated the biodesulfurization potential of a mixed culture AK6 enriched from petroleum hydrocarbons-polluted soil with dibenzothiophene (DBT) as a sulfur source. In addition to DBT, AK6 utilized the following compounds as sulfur sources: 4-methyldibenzothiophene (4-MDBT), benzothiophene (BT), and 4,6- dimethyldibenzothiophene (4,6-DM-DBT). None of these compounds supported the growth of AK6 as the sole carbon and sulfur source. AK6 could not grow on dibenzylsulfide (DBS) as a sulfur source. The AK6 community structure changed according to the provided sulfur source. The major DGGE bands represented members of the genera Sphingobacterium, Klebsiella, Pseudomonas, Stenotrophomonas, Arthrobacter, Mycobacterium, and Rhodococcus. Sphingobacterium sp. and Pseudomonas sp. were abundant across all cultures utilizing any of the tested thiophenic S-compounds. Mycobacterium/Rhodococcus spp. were restricted to the 4-MDBT culture. The 4-MDBT culture had the highest species richness and diversity. Biodesulfurization of DBT by resting cells of AK6 produced 2-hydroxybiphenyl (2-HBP) in addition to trace amounts of phenylacetate. AK6 transformed DBT to 2-hydroxybiphenyl with a specific activity of 9 ± 0.6 μM 2-HBP g dry cell weight−1 h−1. PCR confirmed the presence in the AK6 community of the sulfur-specific (4S) pathway genes dszB and dszC. Mixed cultures hold a better potential than axenic ones for the development of a biodesulfurization technology.
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Affiliation(s)
- Wael Ismail
- Environmental Biotechnology Program, Life Sciences Department, College of Graduate Studies, Arabian Gulf University Manama, Bahrain
| | - Wael S El-Sayed
- Biology Department, Faculty of Science, Taibah University Al-Madinah Al-Monawarah, Saudi Arabia
| | - Abdul Salam Abdul Raheem
- Environmental Biotechnology Program, Life Sciences Department, College of Graduate Studies, Arabian Gulf University Manama, Bahrain
| | - Magdy E Mohamed
- Botany and Microbiology Department, Faculty of Science, Cairo University Giza, Egypt
| | - Ashraf M El Nayal
- Environmental Biotechnology Program, Life Sciences Department, College of Graduate Studies, Arabian Gulf University Manama, Bahrain
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48
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Dorado-Morales P, Vilanova C, P Garay C, Martí JM, Porcar M. Unveiling Bacterial Interactions through Multidimensional Scaling and Dynamics Modeling. Sci Rep 2015; 5:18396. [PMID: 26671778 PMCID: PMC4680887 DOI: 10.1038/srep18396] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 11/17/2015] [Indexed: 01/29/2023] Open
Abstract
We propose a new strategy to identify and visualize bacterial consortia by conducting replicated culturing of environmental samples coupled with high-throughput sequencing and multidimensional scaling analysis, followed by identification of bacteria-bacteria correlations and interactions. We conducted a proof of concept assay with pine-tree resin-based media in ten replicates, which allowed detecting and visualizing dynamical bacterial associations in the form of statistically significant and yet biologically relevant bacterial consortia.
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Affiliation(s)
- Pedro Dorado-Morales
- Cavanilles Institute of Biodiversity and Evolutionary Biology (Universitat de València), 46020 Valencia, Spain
| | - Cristina Vilanova
- Cavanilles Institute of Biodiversity and Evolutionary Biology (Universitat de València), 46020 Valencia, Spain
| | - Carlos P Garay
- Instituto de Física Corpuscular, CSIC-UVEG, 46071, Valencia, Spain
| | | | - Manuel Porcar
- Cavanilles Institute of Biodiversity and Evolutionary Biology (Universitat de València), 46020 Valencia, Spain.,Fundació General de la Universitat de València, Spain
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49
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Continuous fungal treatment of non-sterile veterinary hospital effluent: pharmaceuticals removal and microbial community assessment. Appl Microbiol Biotechnol 2015; 100:2401-15. [DOI: 10.1007/s00253-015-7105-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 10/13/2015] [Accepted: 10/14/2015] [Indexed: 10/22/2022]
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50
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Bafana A, Kumar G, Kashyap SM, Kanade GS, Shinde VM. Dynamics of effluent treatment plant during commissioning of activated sludge process unit. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:3538-3546. [PMID: 25249053 DOI: 10.1007/s11356-014-3597-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2014] [Accepted: 09/11/2014] [Indexed: 06/03/2023]
Abstract
Industrial effluent treatment plants (ETPs) are very important in protecting the environment and different life forms from harmful industrial waste. Hence, the efficiency of ETPs must be regularly monitored, particularly after major repair or replacement work. Present study evaluated the performance of an ETP over a period of 4 months, during which aeration tank (T1) of the activated sludge unit was replaced with a new one (T2). System had to be maintained operational during this transition, which warranted close monitoring of the system performance due to the daily load of hazardous industrial wastewater. Analysis showed that the raw wastewater was highly variable in composition and contained many hazardous organic and inorganic pollutants, such as heavy metals, bisphenol A and cyanoacetylurea. It showed significant toxicity against HepG2 cells in vitro. However, the ETP was found to successfully treat and detoxify the wastewater. Denaturing gradient gel electrophoresis (DGGE) analysis showed large temporal fluctuations in the ETP microbial community, which is consistent with the variable composition of wastewater. It indicated that functional stability of the ETP was not associated with stability of the microbial community, probably due to high microbial biodiversity and consequently high functional redundancy. In conclusion, the CETP showed consistent level of detoxification and microbial community dynamics after switching to T2, indicating successful development, acclimatization and commissioning of T2.
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Affiliation(s)
- Amit Bafana
- CSIR-NEERI (National Environmental Engineering Research Institute), Environmental Health Division, Nagpur, 440 020, India,
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