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Zhang R, Ye Z, Guo X, Yang Y, Li G. Microbial diversity and metabolic pathways linked to benzene degradation in petrochemical-polluted groundwater. ENVIRONMENT INTERNATIONAL 2024; 188:108755. [PMID: 38772206 DOI: 10.1016/j.envint.2024.108755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 05/13/2024] [Accepted: 05/15/2024] [Indexed: 05/23/2024]
Abstract
The rapid advance in shotgun metagenome sequencing has enabled us to identify uncultivated functional microorganisms in polluted environments. While aerobic petrochemical-degrading pathways have been extensively studied, the anaerobic mechanisms remain less explored. Here, we conducted a study at a petrochemical-polluted groundwater site in Henan Province, Central China. A total of twelve groundwater monitoring wells were installed to collect groundwater samples. Benzene appeared to be the predominant pollutant, detected in 10 out of 12 samples, with concentrations ranging from 1.4 μg/L to 5,280 μg/L. Due to the low aquifer permeability, pollutant migration occurred slowly, resulting in relatively low benzene concentrations downstream within the heavily polluted area. Deep metagenome sequencing revealed Proteobacteria as the dominant phylum, accounting for over 63 % of total abundances. Microbial α-diversity was low in heavily polluted samples, with community compositions substantially differing from those in lightly polluted samples. dmpK encoding the phenol/toluene 2-monooxygenase was detected across all samples, while the dioxygenase bedC1 was not detected, suggesting that aerobic benzene degradation might occur through monooxygenation. Sequence assembly and binning yielded 350 high-quality metagenome-assembled genomes (MAGs), with 30 MAGs harboring functional genes associated with aerobic or anaerobic benzene degradation. About 80 % of MAGs harboring functional genes associated with anaerobic benzene degradation remained taxonomically unclassified at the genus level, suggesting that our current database coverage of anaerobic benzene-degrading microorganisms is very limited. Furthermore, two genes integral to anaerobic benzene metabolism, i.e, benzoyl-CoA reductase (bamB) and glutaryl-CoA dehydrogenase (acd), were not annotated by metagenome functional analyses but were identified within the MAGs, signifying the importance of integrating both contig-based and MAG-based approaches. Together, our efforts of functional annotation and metagenome binning generate a robust blueprint of microbial functional potentials in petrochemical-polluted groundwater, which is crucial for designing proficient bioremediation strategies.
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Affiliation(s)
- Ruihuan Zhang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Zhencheng Ye
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Xue Guo
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China; State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yunfeng Yang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China; Institute of Environment and Ecology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.
| | - Guanghe Li
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
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Rendón-Castrillón L, Ramírez-Carmona M, Ocampo-López C, González-López F, Cuartas-Uribe B, Mendoza-Roca JA. Efficient bioremediation of indigo-dye contaminated textile wastewater using native microorganisms and combined bioaugmentation-biostimulation techniques. CHEMOSPHERE 2024; 353:141538. [PMID: 38428533 DOI: 10.1016/j.chemosphere.2024.141538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 01/18/2024] [Accepted: 02/23/2024] [Indexed: 03/03/2024]
Abstract
In this work, the bioremediation of wastewater from the textile industry with indigo dye content was carried out using combined bioaugmentation, bioventilation, and biostimulation techniques. Initially, the inoculum was prepared by isolating the microorganisms from the textile wastewater in a 2 L bioreactor. Then, the respirometry technique was implemented to determine the affinity of the microorganisms and the substrate by measuring CO2 and allowed the formulation of an empirical mathematical model for the growth kinetics of the microorganism. Finally, the bioremediation was carried out in a 3 L bioreactor obtaining an indigo dye removal efficiency of 20.7 ± 1.2%, 24.0 ± 1.5%, and 29.7 ± 1.1% for equivalent wavelengths of 436 nm, 525 nm, and 620 nm. The chemical oxygen demand showed an average reduction of 88.9 ± 2.5%, going from 470.7 ± 15.6 to 52.3 ± 10.7 ppm after 30 days under constant agitation and aeration. A negative generalized exponential model was fitted to assess the affinity of the microorganism with the wastewater as a substrate by evaluating the production of CO2 during the bioremediation. Bioremediation techniques improve water discharge parameters compared to chemical treatments implemented in the industry, reducing the use of substances that can generate secondary pollution. Bioaugmentation, biostimulation, and bioventing of the textile wastewater in this study demonstrate the potential of these combined techniques to serve as an efficient alternative for indigo-contaminated wastewater in the textile industry.
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Affiliation(s)
- Leidy Rendón-Castrillón
- Centro de Estudios y de Investigación en Biotecnología (CIBIOT), Facultad de Ingeniería Química, Universidad Pontificia Bolivariana, Circular 1(a) No. 70-01, Medellín, 050031, Colombia
| | - Margarita Ramírez-Carmona
- Centro de Estudios y de Investigación en Biotecnología (CIBIOT), Facultad de Ingeniería Química, Universidad Pontificia Bolivariana, Circular 1(a) No. 70-01, Medellín, 050031, Colombia
| | - Carlos Ocampo-López
- Centro de Estudios y de Investigación en Biotecnología (CIBIOT), Facultad de Ingeniería Química, Universidad Pontificia Bolivariana, Circular 1(a) No. 70-01, Medellín, 050031, Colombia.
| | - Federico González-López
- Centro de Estudios y de Investigación en Biotecnología (CIBIOT), Facultad de Ingeniería Química, Universidad Pontificia Bolivariana, Circular 1(a) No. 70-01, Medellín, 050031, Colombia
| | - Beatriz Cuartas-Uribe
- Instituto de Seguridad Industrial, Radiofísica y Medioambiental, Universitat Politècnica de València, 46022, Valencia, Spain
| | - José Antonio Mendoza-Roca
- Instituto de Seguridad Industrial, Radiofísica y Medioambiental, Universitat Politècnica de València, 46022, Valencia, Spain
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Eboibi BE, Ogbue MC, Udochukwu EC, Umukoro JE, Okan LO, Agarry SE, Aworanti OA, Ogunkunle O, Laseinde OT. Bio-sorptive remediation of crude oil polluted sea water using plantain ( Musa parasidiaca) leaves as bio-based sorbent: Parametric optimization by Taguchi technique, equilibrium isotherm and kinetic modelling studies. Heliyon 2023; 9:e21413. [PMID: 38027684 PMCID: PMC10665695 DOI: 10.1016/j.heliyon.2023.e21413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 10/10/2023] [Accepted: 10/20/2023] [Indexed: 12/01/2023] Open
Abstract
This study investigated the potential of employing plantain leaves as a natural bio-based sorbent for crude oil spill polluted seawater remediation. Type L9(34) Taguchi orthogonal array technique was used to evaluate the effect of four independent bio-sorption factors at three different levels (crude oil initial concentration (X1 7.8, 11.5 and 15.6 g/L), seawater-crude oil temperature (X2 25, 35 and 45 °C), bio-sorbent dosage (X3 1, 2 and 3 g) and bio-sorbent particle size (X4 1.18, 2.36 and 4.72 mm) on two response indices (bio-sorption efficiency (%) and bio-sorption capacity (g/g)). Taguchi optimization technique, numerical-desirability index function optimization technique and a proposed optimization method were utilized to determine the optimum bio-sorption factors needed for the optimum bio-sorption efficiency and bio-sorption capacity. The results demonstrated that the crude oil bio-sorption efficiency of the plantain leaves was significantly influenced by X1, X3 and X4 and the bio-sorption capacity was mainly influenced by X1 and X3. The optimum bio-sorption efficiency and the optimum bio-sorption capacity were 99.05 % and 12.82 g/g, respectively, obtained at optimum combination of factors and levels of X11 (7.8 g/L), X33 (3 g) and X41 (1.18 mm) for bio-sorption efficiency and X13 (15.6 g/L) X31 (1 g) for bio-sorption capacity. The Freundlich and Dubinin-Rudeshkevich isotherm models best explain the equilibrium bio-sorption data, while the pseudo-second order kinetic model best describes the bio-sorption kinetics. The bio-sorptive remediation mechanism followed dual mechanism of physical and chemical bio-sorption and the mass transfer controlled by film diffusion. The maximum bio-sorption capacity (K f ) was 14.0 gg-1.
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Affiliation(s)
- Blessing E. Eboibi
- Biochemical and Bioenvironmental Engineering Laboratory, Department of Chemical Engineering, Delta State University, Abraka, P. M. B. 22, Oleh Campus, Nigeria
- Department of Chemical Engineering, Federal University, Otuoke, Nigeria
| | - Michael C. Ogbue
- Department of Petroleum Engineering, Delta State University, Abraka, P. M. B. 22, Oleh Campus, Nigeria
| | | | - Judith E. Umukoro
- Biochemical and Bioenvironmental Engineering Laboratory, Department of Chemical Engineering, Delta State University, Abraka, P. M. B. 22, Oleh Campus, Nigeria
| | - Laura O. Okan
- Biochemical and Bioenvironmental Engineering Laboratory, Department of Chemical Engineering, Delta State University, Abraka, P. M. B. 22, Oleh Campus, Nigeria
| | - Samuel E. Agarry
- Department of Chemical Engineering, Federal University, Otuoke, Nigeria
- Biochemical and Bioenvironmental Engineering Research Group, Department of Chemical Engineering, Ladoke Akintola University of Technology, P. M. B. 4000, Ogbomoso, Nigeria
| | - Oluwafunmilayo A. Aworanti
- Biochemical and Bioenvironmental Engineering Research Group, Department of Chemical Engineering, Ladoke Akintola University of Technology, P. M. B. 4000, Ogbomoso, Nigeria
| | - Oyetola Ogunkunle
- Department of Mechanical and Industrial Engineering Technology, University of Johannesburg, South Africa
| | - Opeyeolu T. Laseinde
- Department of Mechanical and Industrial Engineering Technology, University of Johannesburg, South Africa
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4
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Patowary R, Devi A, Mukherjee AK. Advanced bioremediation by an amalgamation of nanotechnology and modern artificial intelligence for efficient restoration of crude petroleum oil-contaminated sites: a prospective study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:74459-74484. [PMID: 37219770 PMCID: PMC10204040 DOI: 10.1007/s11356-023-27698-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 05/11/2023] [Indexed: 05/24/2023]
Abstract
Crude petroleum oil spillage is becoming a global concern for environmental pollution and poses a severe threat to flora and fauna. Bioremediation is considered a clean, eco-friendly, and cost-effective process to achieve success among the several technologies adopted to mitigate fossil fuel pollution. However, due to the hydrophobic and recalcitrant nature of the oily components, they are not readily bioavailable to the biological components for the remediation process. In the last decade, nanoparticle-based restoration of oil-contaminated, owing to several attractive properties, has gained significant momentum. Thus, intertwining nano- and bioremediation can lead to a suitable technology termed 'nanobioremediation' expected to nullify bioremediation's drawbacks. Furthermore, artificial intelligence (AI), an advanced and sophisticated technique that utilizes digital brains or software to perform different tasks, may radically transfer the bioremediation process to develop an efficient, faster, robust, and more accurate method for rehabilitating oil-contaminated systems. The present review outlines the critical issues associated with the conventional bioremediation process. It analyses the significance of the nanobioremediation process in combination with AI to overcome such drawbacks of a traditional approach for efficiently remedying crude petroleum oil-contaminated sites.
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Affiliation(s)
- Rupshikha Patowary
- Environmental Chemistry Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology, Paschim Boragaon, Guwahati, 781 035, Assam, India
| | - Arundhuti Devi
- Environmental Chemistry Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology, Paschim Boragaon, Guwahati, 781 035, Assam, India
| | - Ashis K Mukherjee
- Microbial Biotechnology and Protein Research Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology, Paschim Boragaon, Guwahati, 781 035, Assam, India.
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Fernandez M, Gómez RJ, González PS, Barroso CN, Paisio CE. Sequential application of activated sludge and phytoremediation with aquatic macrophytes on tannery effluents: in search of a complete treatment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27718-3. [PMID: 37204583 DOI: 10.1007/s11356-023-27718-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 05/13/2023] [Indexed: 05/20/2023]
Abstract
Tannery effluents with a high organic matter load (indicated by their COD level) have to be treated before they are discharged, so as to minimize their negative impact on the environment. Using field mesocosm systems, this study evaluated the feasibility of treating such effluents through bioaugmentation with activated sludge, followed by phytoremediation with aquatic macrophytes (Lemnoideae subfamily). Regardless of its quality, the activated sludge was able to remove approximately 77% of the COD from effluents with a low initial organic load (up to 1500 mg/L). The macrophytes then enhanced removal (up to 86%), so the final COD values were permissible under the current legislation for effluent discharge. When the initial organic load in the undiluted effluents was higher (around 3000 mg/L), the COD values obtained after consecutive bioaugmentation and phytoremediation were close to the legally allowed limits (583 mg/L), which highlights the potential of phytoremediation as a tertiary treatment. This treatment also brought total coliform counts down to legally acceptable values, without plant biomass decreasing over time. Moreover, the plant biomass remained viable and capable of high COD removal efficiency (around 75%) throughout two additional reuse cycles. These findings indicate that the efficiency of the biological treatments assayed here depends largely on the initial organic load in the tannery effluents. In any case, the sequential application of activated sludge and aquatic macrophytes proved to be a successful alternative for remediation.
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Affiliation(s)
- Marilina Fernandez
- Departamento de Biología Molecular- FCEFQyN, Universidad Nacional de Río Cuarto, UNRC, 5800 Río Cuarto, Córdoba, Argentina
- Instituto de Biotecnología Ambiental y Salud (INBIAS) CONICET, Río Cuarto, Córdoba, Argentina
| | - Roxana J Gómez
- Departamento de Biología Molecular- FCEFQyN, Universidad Nacional de Río Cuarto, UNRC, 5800 Río Cuarto, Córdoba, Argentina
| | - Paola S González
- Departamento de Biología Molecular- FCEFQyN, Universidad Nacional de Río Cuarto, UNRC, 5800 Río Cuarto, Córdoba, Argentina
- Instituto de Biotecnología Ambiental y Salud (INBIAS) CONICET, Río Cuarto, Córdoba, Argentina
| | - Cintia N Barroso
- Departamento de Biología Molecular- FCEFQyN, Universidad Nacional de Río Cuarto, UNRC, 5800 Río Cuarto, Córdoba, Argentina
- Instituto de Biotecnología Ambiental y Salud (INBIAS) CONICET, Río Cuarto, Córdoba, Argentina
| | - Cintia E Paisio
- Departamento de Biología Molecular- FCEFQyN, Universidad Nacional de Río Cuarto, UNRC, 5800 Río Cuarto, Córdoba, Argentina.
- Instituto de Biotecnología Ambiental y Salud (INBIAS) CONICET, Río Cuarto, Córdoba, Argentina.
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6
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Freitas-Silva J, de Oliveira BFR, Dias GR, de Carvalho MM, Laport MS. Unravelling the sponge microbiome as a promising source of biosurfactants. Crit Rev Microbiol 2023; 49:101-116. [PMID: 35176944 DOI: 10.1080/1040841x.2022.2037507] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Microbial surfactants are particularly useful in bioremediation and heavy metal removal from soil and aquatic environments, amongst other highly valued uses in different economic and biomedical sectors. Marine sponge-associated bacteria are well-known producers of bioactive compounds with a wide array of potential applications. However, little progress has been made on investigating biosurfactants produced by these bacteria, especially when compared with other groups of biologically active molecules harnessed from the sponge microbiome. Using a thorough literature search in eight databases, the purpose of the review was to compile the current knowledge on biosurfactants from sponge-associated bacteria, with a focus on their relevant biotechnological applications. From the publications between the years 1995 and 2021, lipopeptides and glycolipids were the most identified chemical classes of biosurfactants. Firmicutes was the dominant phylum of biosurfactant-producing strains, followed by Actinobacteria and Proteobacteria. Bioremediation led as the most promising application field for the studied surface-active molecules in sponge-derived bacteria, despite the reports endorsed their use as antimicrobial and antibiofilm agents. Finally, we appoint some key strategies to instigate the research appetite on the isolation and characterization of novel biosurfactants from the poriferan microbiome.
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Affiliation(s)
- Jéssyca Freitas-Silva
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Bruno Francesco Rodrigues de Oliveira
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Instituto Biomédico, Universidade Federal Fluminense, Niterói, Brazil
| | - Gabriel Rodrigues Dias
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Marinella Silva Laport
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Muthukumar B, Surya S, Sivakumar K, AlSalhi MS, Rao TN, Devanesan S, Arunkumar P, Rajasekar A. Influence of bioaugmentation in crude oil contaminated soil by Pseudomonas species on the removal of total petroleum hydrocarbon. CHEMOSPHERE 2023; 310:136826. [PMID: 36243087 DOI: 10.1016/j.chemosphere.2022.136826] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/04/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
This study aimed to carry out the bioaugmentation of crude oil/motor oil contaminated soil. The mixture of novel strains Pseudomonas aeruginosa PP3 and Pseudomonas aeruginosa PP4 were used in this bioaugmentation studies. The four different bioaugmentation systems (BS 1-4) were carried out in this experiment labelled as BS 1 (Crude oil contaminated soil), BS 2 (BS 1 + bacterial consortia), BS 3 (Motor oil sludge contaminated soil), and BS 4 (BS 3 + bacterial consortia). The total petroleum hydrocarbon (TPH) was investigated for monitor the effectiveness of bioaugmentation process. The highest TPH removal rate was recorded on BS 4 (9091 mg Kg -1) was about 67% followed by 52% on BS 2 (8584 mg Kg -1) respectively. The percentage of biodegradation efficiency (BE) of residual crude and motor oil contaminated soil were evaluated by GCMS analysis and the results showed that 65% (BS 2) and 83% (BS 4) respectively. Further the bioaugmented soil was subjected to the plant cultivation (Lablab purpureus) and the results revealed that the L. purpureus was rapidly grown in the systems BS 4 and BS 2 than the system BS 1 and BS 2 which was due to the lesser biodegradation of the crude oil contents. In resultant, it can be concluded that the soil was suitable for the cultivation of plant. Overall, this study revealed that the selected bacterial consortia were effectively degraded the hydrocarbon and act as a potential bioremediator in the hydrocarbon polluted soil in a short period.
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Affiliation(s)
- Balakrishnan Muthukumar
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu, 632115, India
| | - Saravanan Surya
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu, 632115, India
| | - Krithiga Sivakumar
- Department of Community Medicine, Government Stanley Medical College, Chennai, Tamil Nadu, India
| | - Mohamad S AlSalhi
- Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box-2455, Riyadh, 11451, Saudi Arabia
| | - Tentu Nageswara Rao
- Department of Chemistry, Krishna University, Machilipatnam, AP, 521001, India
| | - Sandhanasamy Devanesan
- Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box-2455, Riyadh, 11451, Saudi Arabia
| | - Paulraj Arunkumar
- School of Chemical Engineering, Chonnam National University, Gwangju, 61186, South Korea
| | - Aruliah Rajasekar
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu, 632115, India.
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8
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Chuah LF, Chew KW, Bokhari A, Mubashir M, Show PL. Biodegradation of crude oil in seawater by using a consortium of symbiotic bacteria. ENVIRONMENTAL RESEARCH 2022; 213:113721. [PMID: 35738420 DOI: 10.1016/j.envres.2022.113721] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 05/06/2022] [Accepted: 06/15/2022] [Indexed: 06/15/2023]
Abstract
This work presents the enhancement of oil biodegradation in seawater using a mixture of oil and microorganisms. Retardation of crude oil biodegradation in seawater is hypothetically due to the inhibiting of metabolites produced by the oil bacterium which inhibit its enzymes. For this purpose, the bacteria consortium consisting of an active oil-oxidizing bacterium (AR3-Pseudomonas pseudoalcaligenes) and two oil-resistant and active heterotrophic bacteria (OG1 and OG2-Erythrobacter citreus) were formed. The heterotrophic bacteria, OG1 and OG2 were able to remove metabolites produced during oil degradation. It was found that AR3 was retarded by metabolites, while OG1 and OG2 were able to grow in the metabolites. OG1 and OG2 were applied together to enhance growth and removal of the metabolites. About 59.9% of crude oil degradation was degraded by AR3 pure culture, while 68.6% was degraded by the bacteria consortium. About 31.4% of the crude oil was found to remain in seawater due to the presence of asphaltenes and resin hydrocarbons. The bacteria consortium was able to degrade 84.1% of total hydrocarbons while 67.0% was degraded by AR3. A total of 99.8% of the aliphatic content and 38.4% of the total aromatic hydrocarbons were degraded by the bacteria consortium, while a lower 79.4% of total aliphatic and 31.0% of total aromatic were degraded by AR3 under the same experimental conditions. The results which were obtained from this study support the hypothesis that the retardation of oil degradation by AR3 is due to the inhibition of metabolites on the growth.
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Affiliation(s)
- Lai Fatt Chuah
- Faculty of Maritime Studies, Universiti Malaysia Terengganu, Terengganu, Malaysia.
| | - Kit Wayne Chew
- School of Energy and Chemical Engineering, Xiamen University Malaysia, 43900, Sepang, Selangor, Malaysia; College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China
| | - Awais Bokhari
- Chemical Engineering Department, COMSATS Institute of Information Technology, Lahore, Pakistan
| | - Muhammad Mubashir
- Department of Petroleum Engineering, School of Engineering, Asia Pacific University of Technology and Innovation, 57000, Kuala Lumpur, Malaysia
| | - Pau Loke Show
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, 43500, Semenyih, Selangor, Malaysia.
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9
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Jimoh AA, Ikhimiukor OO, Adeleke R. Prospects in the bioremediation of petroleum hydrocarbon contaminants from hypersaline environments: A review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:35615-35642. [PMID: 35247173 DOI: 10.1007/s11356-022-19299-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 02/15/2022] [Indexed: 06/14/2023]
Abstract
Hypersaline environments are underappreciated and are frequently exposed to pollution from petroleum hydrocarbons. Unlike other environs, the high salinity conditions present are a deterrent to various remediation techniques. There is also production of hypersaline waters from oil-polluted ecosystems which contain toxic hydrophobic pollutants that are threat to public health, environmental protection, and sustainability. Currently, innovative advances are being proposed for the remediation of oil-contaminated hypersaline regions. Such advancements include the exploration and stimulation of native microbial communities capable of utilizing and degrading petroleum hydrocarbons. However, prevailing salinity in these environments is unfavourable for the growth of non-halophylic microorganisms, thus limiting effective bioremediation options. An in-depth understanding of the potentials of various remediation technologies of hydrocarbon-polluted hypersaline environments is lacking. Thus, we present an overview of petroleum hydrocarbon pollution in hypersaline ecosystems and discuss the challenges and prospects associated with several technologies that may be employed in remediation of hydrocarbon pollution in the presence of delimiting high salinities. The application of biological remediation technologies including the utilization of halophilic and halotolerant microorganisms is also discussed.
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Affiliation(s)
- Abdullahi Adekilekun Jimoh
- Unit for Environmental Sciences and Management, North-West University (Potchefstroom Campus), Potchefstroom, 2520, South Africa.
- Institute for Microbial Biotechnology and Metagenomics, Department of Biotechnology, University of the Western Cape, Bellville, Cape Town, 7535, South Africa.
| | - Odion Osebhahiemen Ikhimiukor
- Environmental Microbiology and Biotechnology Laboratory, Department of Microbiology, University of Ibadan, Ibadan, Nigeria
| | - Rasheed Adeleke
- Unit for Environmental Sciences and Management, North-West University (Potchefstroom Campus), Potchefstroom, 2520, South Africa
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Zare N, Hassanshahian M, Thangavelu L, Jabar NAA, Abed Jawad M. Screening and Identification of Naphthalene-Degrading Bacteria from the Coastal Regions of Makran Sea. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2053173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Nahal Zare
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Mehdi Hassanshahian
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Lakshmi Thangavelu
- Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Science, Saveetha University, Chennai, India
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Nwankwegu AS, Zhang L, Xie D, Onwosi CO, Muhammad WI, Odoh CK, Sam K, Idenyi JN. Bioaugmentation as a green technology for hydrocarbon pollution remediation. Problems and prospects. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 304:114313. [PMID: 34942548 DOI: 10.1016/j.jenvman.2021.114313] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 10/26/2021] [Accepted: 12/13/2021] [Indexed: 06/14/2023]
Abstract
Environmental pollution mitigation measure involving bioremediation technology is a sustainable intervention for a greener ecosystem biorecovery, especially the obnoxious hydrocarbons, xenobiotics, and other environmental pollutants induced by anthropogenic stressors. Several successful case studies have provided evidence to this paradigm including the putative adoption that the technology is eco-friendly, cost-effective, and shows a high tendency for total contaminants mineralization into innocuous bye-products. The present review reports advances in bioremediation, types, and strategies conventionally adopted in contaminant clean-up. It identified that natural attenuation and biostimulation are faced with notable limitations including the poor remedial outcome under the natural attenuation system and the residual contamination occasion following a biostimulation operation. It remarks that the use of genetically engineered microorganisms shows a potentially promising insight as a prudent remedial approach but is currently challenged by few ethical restrictions and the rural unavailability of the technology. It underscores that bioaugmentation, particularly the use of high cell density assemblages referred to as microbial consortia possess promising remedial prospects thus offers a more sustainable environmental security. The authors, therefore, recommend bioaugmentation for large scale contaminated sites in regions where environmental degradation is commonplace.
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Affiliation(s)
- Amechi S Nwankwegu
- College of Resources and Environment, Southwest University, 1 Tiansheng Road, Beibei District, Chongqing, 400716, China; Organization of African Academic Doctors, Off Kamiti Road, P.O. Box 25305-00100, Nairobi, Kenya.
| | - Lei Zhang
- College of Resources and Environment, Southwest University, 1 Tiansheng Road, Beibei District, Chongqing, 400716, China
| | - Deti Xie
- College of Resources and Environment, Southwest University, 1 Tiansheng Road, Beibei District, Chongqing, 400716, China
| | - Chukwudi O Onwosi
- Department of Microbiology, Faculty of Biological Sciences, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - Wada I Muhammad
- Organization of African Academic Doctors, Off Kamiti Road, P.O. Box 25305-00100, Nairobi, Kenya; College of Water Conservancy, Hohai University, No.1 Xikang Road, Gulou District, Nanjing, 210098, China
| | - Chuks K Odoh
- Organization of African Academic Doctors, Off Kamiti Road, P.O. Box 25305-00100, Nairobi, Kenya; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Beijing, China
| | - Kabari Sam
- Faculty of Environmental Management, Department of Marine Environment and Pollution Control, Nigeria Maritime University, Okerenkoko, Delta State, Nigeria
| | - John N Idenyi
- Department of Biotechnology, Ebonyi State University Abakaliki, Nigeria
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12
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Geospatial Synthesis of Biogeochemical Attributions of Porphyrins to Oil Pollution in Marine Sediments of the Gulf of México. GEOSCIENCES 2022. [DOI: 10.3390/geosciences12020077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Porphyrins are highly persistent in the environment and represent a helpful biogeochemical attribute to assess the spatial distribution of the effects of oil spills on ecosystems and their resilience. In areas prone to natural and human-originated oil spills, the measurement of VO– and nickel–porphyrins in marine–sediment samples can identify the effects of oil pollution across spatiotemporal scales. The goal is to explore whether or not these compounds can be useful indicators of the geospatial attributions of oil contamination in the surficial sediments. We hypothesize that the geospatial gradients of porphyrins in marine sediments from petroleum spills and seepage activities—related to traditional indices of oil pollution, such as heavy metals and polycyclic aromatic hydrocarbons—can be identified in small sediment samples and concentrations. The objectives are two-fold: (1) extract and measure VO– and nickel–porphyrins from small marine sediment samples using high-pressure liquid chromatography, and (2) use cluster analysis and the canonical correlation analysis to identify the biogeochemical and geospatial attributions between VO–porphyrins and another index of oil pollution extracted and analyzed from sediments of the Campeche Shelf, in the Gulf of Mexico. High-pressure liquid chromatography with diode array detectors, two inverse phase columns and an isocratic separation method, was used to analyze the marine sediments. We identified 5.1 ng/g to 240.3 ng/g to VO–porphyrins concentrations with gradients toward areas identified as potential sources of oil pollution. Similar patterns were present for nickel–porphyrins, with values two orders of magnitude below those for the VO–porphyrins. The results represent a valuable opportunity to measure the biomarkers associated with oil pollution in small sediment samples. Furthermore, the results can find the potential drawbacks of benthic ecosystem resilience.
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13
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Kazemzadeh S, Emami‐Karvani Z, Naghavi NS, Emtiazi G. Production of surface‐active sophorolipid biosurfactant and crude oil degradability by novel
Rhodotorula mucilaginosa
strain
SKF2. J SURFACTANTS DETERG 2022. [DOI: 10.1002/jsde.12572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Somayeh Kazemzadeh
- Department of Microbiology, Falavarjan Branch Islamic Azad University Isfahan Iran
| | | | | | - Giti Emtiazi
- Department of Biotechnology, Faculty of Biological Science and Technology Shahid Ashrafi Esfahani University Isfahan Iran
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14
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Kong X, Dong R, King T, Chen F, Li H. Biodegradation Potential of Bacillus sp. PAH-2 on PAHs for Oil-Contaminated Seawater. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27030687. [PMID: 35163953 PMCID: PMC8839208 DOI: 10.3390/molecules27030687] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/12/2022] [Accepted: 01/18/2022] [Indexed: 11/17/2022]
Abstract
Microbial degradation is a useful tool for inhibiting or preventing polycyclic aromatic hydrocarbons (PAHs) widely distributed in marine environment after oil spill accidents. This study aimed to evaluate the potential and diversity of bacteria Bacillus sp. PAH-2 on Benzo (a) anthracene (BaA), Pyrene (Pyr), and Benzo (a) pyrene (BaP), their composite system, aromatic components system, and crude oil. The seven-day degradation rates against BaA, Pyr, and BaP were 20.6%, 12.83%, and 17.49%, respectively. Further degradation study of aromatic components demonstrated PAH-2 had a high degradation rate of substances with poor stability of molecular structure. In addition, the degradation of PAHs in crude oil suggested PAH-2 not only made good use of PAHs in such a more complex structure of pollutants but the saturated hydrocarbons in the crude oil also showed a good application potential.
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Affiliation(s)
- Xianghui Kong
- Fisheries College, Ocean University of China, Qingdao 266003, China;
| | - Ranran Dong
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China; (R.D.); (F.C.)
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Thomas King
- Department of Fisheries and Oceans, Bedford Institute of Oceanography, Dartmouth, NS B2Y 4A2, Canada;
| | - Feifei Chen
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China; (R.D.); (F.C.)
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Haoshuai Li
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China; (R.D.); (F.C.)
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
- Correspondence:
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15
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Luo Q, Liu L, Hou D. Bioremediation of oily seawater by Bacteria immobilization on a novel carrier material containing nutrients. J Microbiol Methods 2021; 192:106392. [PMID: 34915068 DOI: 10.1016/j.mimet.2021.106392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 12/05/2021] [Accepted: 12/09/2021] [Indexed: 11/18/2022]
Abstract
A novel carrier material was obtained by coating puffed rhubarb rice (PRR) with calcium alginate (CA) membrane. The carrier material was prepared to contain oil-degrading bacterial strains and inorganic nutrients through entrapping them in different locations. This formulation possessed floatability, biodegradability and nutrient slow-release properties. Therefore, it could be applied for oil biodegradation on seawater surfaces. For controlling the release rate of nutrients, the optimal preparation technique was established. The number of viable cells immobilized on the carrier material reached 2 × 109 CFU/g. This formulation could be stored at -20 °C for three months without a significant decrease in the number of viable immobilized cells (4 × 108 CFU/g). Scanning electron microscope (SEM) results showed that the cells were immobilized on the outer CA membrane, and the inorganic nutrients were entrapped in the inner PRR and CA membrane. The immobilized cells were able to remove 86% of the diesel oil at an initial diesel oil concentration of 1% (v/v), an incubation temperature of 37 °C, during three days of incubation. Gas chromatography-mass spectrometry (GC-MS) analysis results showed that most components of diesel oil were degraded by the formulations.
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Affiliation(s)
- Qun Luo
- Naval Medical Center of Chinese People's Liberation Army, Shanghai 200433, China
| | - Lina Liu
- Naval Medical Center of Chinese People's Liberation Army, Shanghai 200433, China
| | - Dengyong Hou
- Naval Medical Center of Chinese People's Liberation Army, Shanghai 200433, China.
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16
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Perdigão R, Almeida CMR, Magalhães C, Ramos S, Carolas AL, Ferreira BS, Carvalho MF, Mucha AP. Bioremediation of Petroleum Hydrocarbons in Seawater: Prospects of Using Lyophilized Native Hydrocarbon-Degrading Bacteria. Microorganisms 2021; 9:2285. [PMID: 34835411 PMCID: PMC8617842 DOI: 10.3390/microorganisms9112285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/29/2021] [Accepted: 10/30/2021] [Indexed: 11/16/2022] Open
Abstract
This work aimed to develop a bioremediation product of lyophilized native bacteria to respond to marine oil spills. Three oil-degrading bacterial strains (two strains of Rhodococcus erythropolis and one Pseudomonas sp.), isolated from the NW Portuguese coast, were selected for lyophilization after biomass growth optimization (tested with alternative carbon sources). Results indicated that the bacterial strains remained viable after the lyophilization process, without losing their biodegradation potential. The biomass/petroleum ratio was optimized, and the bioremediation efficiency of the lyophilized bacterial consortium was tested in microcosms with natural seawater and petroleum. An acceleration of the natural oil degradation process was observed, with an increased abundance of oil-degraders after 24 h, an emulsion of the oil/water layer after 7 days, and an increased removal of total petroleum hydrocarbons (47%) after 15 days. This study provides an insight into the formulation and optimization of lyophilized bacterial agents for application in autochthonous oil bioremediation.
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Affiliation(s)
- Rafaela Perdigão
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (C.M.R.A.); (C.M.); (S.R.); (M.F.C.); (A.P.M.)
- School of Medicine and Biomedical Sciences (ICBAS), University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - C. Marisa R. Almeida
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (C.M.R.A.); (C.M.); (S.R.); (M.F.C.); (A.P.M.)
| | - Catarina Magalhães
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (C.M.R.A.); (C.M.); (S.R.); (M.F.C.); (A.P.M.)
- Faculty of Sciences, University of Porto (FCUP), Rua do Campo Alegre 790, 4150-171 Porto, Portugal
| | - Sandra Ramos
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (C.M.R.A.); (C.M.); (S.R.); (M.F.C.); (A.P.M.)
| | - Ana L. Carolas
- Biotrend S.A., Biocant Park, Núcleo 04 Lote 2, 3060-197 Cantanhede, Portugal; (A.L.C.); (B.S.F.)
| | - Bruno S. Ferreira
- Biotrend S.A., Biocant Park, Núcleo 04 Lote 2, 3060-197 Cantanhede, Portugal; (A.L.C.); (B.S.F.)
| | - Maria F. Carvalho
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (C.M.R.A.); (C.M.); (S.R.); (M.F.C.); (A.P.M.)
- School of Medicine and Biomedical Sciences (ICBAS), University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Ana P. Mucha
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (C.M.R.A.); (C.M.); (S.R.); (M.F.C.); (A.P.M.)
- Faculty of Sciences, University of Porto (FCUP), Rua do Campo Alegre 790, 4150-171 Porto, Portugal
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17
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Nandy S, Arora U, Tarar P, Viggor S, Jõesaar M, Kivisaar M, Kapley A. Monitoring the growth, survival and phenol utilization of the fluorescent-tagged Pseudomonas oleovorans immobilized and free cells. BIORESOURCE TECHNOLOGY 2021; 338:125568. [PMID: 34274579 DOI: 10.1016/j.biortech.2021.125568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 07/09/2021] [Accepted: 07/10/2021] [Indexed: 06/13/2023]
Abstract
Bioaugmentation in wastewater treatment plants (WWTPs) is challenging due to low survival and persistence of applied microbes. This study aimed to track the capacity and survival of fluorescent-tagged Pseudomonas oleovoransICTN13 as a model organism applicable in bioaugmentation of phenol-containing wastewater. The isolate was immobilized in alginate biopolymer, and enhanced efficacy and survival for biodegradation of phenol against free cells were studied. Encapsulated cells resulted in enhanced phenol removal efficiency (~94%) compared to free cells (~72%). Encapsulation of cells facilitated an extended storage time of 30 days. Remarkably, phenol and COD removal efficacy of encapsulated cells was sustained up to ~ 92-93% in a reactor after 45 days, while free cells could produce ~ 80-84% removal efficiency. Fluorescence microscopy showed high survival of the encapsulated cells, whereas gradual deterioration of free cells was observed. Thus, the findings highlight the importance of bio augmented strain in WWTPs where encapsulation is a crucial factor.
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Affiliation(s)
- Sampurna Nandy
- Director's Research Cell, CSIR-National Environmental Engineering Research Institute, Nagpur 440020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Upasana Arora
- Director's Research Cell, CSIR-National Environmental Engineering Research Institute, Nagpur 440020, India
| | - Pranay Tarar
- Director's Research Cell, CSIR-National Environmental Engineering Research Institute, Nagpur 440020, India
| | - Signe Viggor
- Institute of Molecular and Cell Biology, University of Tartu, Tartu 51010, Estonia
| | - Merike Jõesaar
- Institute of Molecular and Cell Biology, University of Tartu, Tartu 51010, Estonia
| | - Maia Kivisaar
- Institute of Molecular and Cell Biology, University of Tartu, Tartu 51010, Estonia
| | - Atya Kapley
- Director's Research Cell, CSIR-National Environmental Engineering Research Institute, Nagpur 440020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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18
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Martins VR, Freitas CJB, Castro AR, Silva RM, Gudiña EJ, Sequeira JC, Salvador AF, Pereira MA, Cavaleiro AJ. Corksorb Enhances Alkane Degradation by Hydrocarbonoclastic Bacteria. Front Microbiol 2021; 12:618270. [PMID: 34489874 PMCID: PMC8417381 DOI: 10.3389/fmicb.2021.618270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 07/26/2021] [Indexed: 11/13/2022] Open
Abstract
Biosorbent materials are effective in the removal of spilled oil from water, but their effect on hydrocarbonoclastic bacteria is not known. Here, we show that corksorb, a cork-based biosorbent, enhances growth and alkane degradation by Rhodococcus opacus B4 (Ro) and Alcanivorax borkumensis SK2 (Ab). Ro and Ab degraded 96 ± 1% and 72 ± 2%, respectively, of a mixture of n-alkanes (2 g L–1) in the presence of corksorb. These values represent an increase of 6 and 24%, respectively, relative to the assays without corksorb. The biosorbent also increased the growth of Ab by 51%. However, no significant changes were detected in the expression of genes involved in alkane uptake and degradation in the presence of corksorb relative to the control without the biosorbent. Nevertheless, transcriptomics analysis revealed an increased expression of rRNA and tRNA coding genes, which confirms the higher metabolic activity of Ab in the presence of corksorb. The effect of corksorb is not related to the release of soluble stimulating compounds, but rather to the presence of the biosorbent, which was shown to be essential. Indeed, scanning electron microscopy images and downregulation of pili formation coding genes, which are involved in cell mobility, suggest that cell attachment on corksorb is a determinant for the improved activity. Furthermore, the existence of native alkane-degrading bacteria in corksorb was revealed, which may assist in situ bioremediation. Hence, the use of corksorb in marine oil spills may induce a combined effect of sorption and stimulated biodegradation, with high potential for enhancing in situ bioremediation processes.
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Affiliation(s)
- Valdo R Martins
- CEB - Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Carlos J B Freitas
- CEB - Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - A Rita Castro
- CEB - Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Rita M Silva
- CEB - Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Eduardo J Gudiña
- CEB - Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - João C Sequeira
- CEB - Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Andreia F Salvador
- CEB - Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - M Alcina Pereira
- CEB - Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Ana J Cavaleiro
- CEB - Centre of Biological Engineering, University of Minho, Braga, Portugal
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19
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Biodegradation of crude oil by immobilized Exiguobacterium sp. AO-11 and shelf life evaluation. Sci Rep 2021; 11:12990. [PMID: 34155247 PMCID: PMC8217171 DOI: 10.1038/s41598-021-92122-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 06/04/2021] [Indexed: 01/17/2023] Open
Abstract
Exiguobacterium sp. AO-11 was immobilized on bio-cord at 109 CFU g−1 carrier for the removal of crude oil from marine environments. To prepare a ready-to-use bioremediation product, the shelf life of the immobilized cells was calculated. Approximately 90% of 0.25% (v/v) crude oil removal was achieved within 9 days when the starved state of immobilized cells was used. The oil removal activity of the immobilized cells was maintained in the presence of oil dispersant (89%) and at pH values of 7–9. Meanwhile, pH, oil concentration and salinity affected the oil removal efficacy. The immobilized cells could be reused for at least 5 cycles. The Arrhenius equation describing the relationship between the rate of reaction and temperature was validated as a useful model of the kinetics of retention of activity by an immobilized biocatalyst. It was estimated that the immobilized cells could be stored in a non-vacuum bag containing phosphate buffer (pH 7.0) at 30 °C for 39 days to retain the cells at 107 CFU g−1 carrier and more than 50% degradation activity. These results indicated the potential of using bio-cord-immobilized crude oil-degrading Exiguobacterium sp. AO-11 as a bioremediation product in a marine environment.
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20
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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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21
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Mahjoubi M, Aliyu H, Neifar M, Cappello S, Chouchane H, Souissi Y, Masmoudi AS, Cowan DA, Cherif A. Genomic characterization of a polyvalent hydrocarbonoclastic bacterium Pseudomonas sp. strain BUN14. Sci Rep 2021; 11:8124. [PMID: 33854112 PMCID: PMC8046798 DOI: 10.1038/s41598-021-87487-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 02/12/2021] [Indexed: 02/02/2023] Open
Abstract
Bioremediation offers a viable alternative for the reduction of contaminants from the environment, particularly petroleum and its recalcitrant derivatives. In this study, the ability of a strain of Pseudomonas BUN14 to degrade crude oil, pristane and dioxin compounds, and to produce biosurfactants, was investigated. BUN14 is a halotolerant strain isolated from polluted sediment recovered from the refinery harbor on the Bizerte coast, north Tunisia and capable of producing surfactants. The strain BUN14 was assembled into 22 contigs of 4,898,053 bp with a mean GC content of 62.4%. Whole genome phylogeny and comparative genome analyses showed that strain BUN14 could be affiliated with two validly described Pseudomonas Type Strains, P. kunmingensis DSM 25974T and P. chloritidismutans AW-1T. The current study, however, revealed that the two Type Strains are probably conspecific and, given the priority of the latter, we proposed that P. kunmingensis DSM 25974 is a heteronym of P. chloritidismutans AW-1T. Using GC-FID analysis, we determined that BUN14 was able to use a range of hydrocarbons (crude oil, pristane, dibenzofuran, dibenzothiophene, naphthalene) as a sole carbon source. Genome analysis of BUN14 revealed the presence of a large repertoire of proteins (154) related to xenobiotic biodegradation and metabolism. Thus, 44 proteins were linked to the pathways for complete degradation of benzoate and naphthalene. The annotation of conserved functional domains led to the detection of putative genes encoding enzymes of the rhamnolipid biosynthesis pathway. Overall, the polyvalent hydrocarbon degradation capacity of BUN14 makes it a promising candidate for application in the bioremediation of polluted saline environments.
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Affiliation(s)
- Mouna Mahjoubi
- grid.424444.60000 0001 1103 8547University of Manouba, ISBST, BVBGR-LR11ES31, Biotechpole SidiThabet, 2020 Ariana, Tunisia
| | - Habibu Aliyu
- grid.7892.40000 0001 0075 5874Institute of Process Engineering in Life Science 2: Technical Biology, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Mohamed Neifar
- grid.424444.60000 0001 1103 8547University of Manouba, ISBST, BVBGR-LR11ES31, Biotechpole SidiThabet, 2020 Ariana, Tunisia
| | - Simone Cappello
- Istituto per le Risorse Biologiche e le Biotecnologie Marine (IRBIM)-CNR of Messina, Sp. San Raineri, 86, 98122 Messina, Italy
| | - Habib Chouchane
- grid.424444.60000 0001 1103 8547University of Manouba, ISBST, BVBGR-LR11ES31, Biotechpole SidiThabet, 2020 Ariana, Tunisia
| | - Yasmine Souissi
- grid.424444.60000 0001 1103 8547University of Manouba, ISBST, BVBGR-LR11ES31, Biotechpole SidiThabet, 2020 Ariana, Tunisia
| | - Ahmed Salaheddine Masmoudi
- grid.424444.60000 0001 1103 8547University of Manouba, ISBST, BVBGR-LR11ES31, Biotechpole SidiThabet, 2020 Ariana, Tunisia
| | - Don A. Cowan
- grid.49697.350000 0001 2107 2298Centre for Microbial Ecology and Genomics, University of Pretoria, Pretoria, 0002 South Africa
| | - Ameur Cherif
- grid.424444.60000 0001 1103 8547University of Manouba, ISBST, BVBGR-LR11ES31, Biotechpole SidiThabet, 2020 Ariana, Tunisia
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22
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Sayed K, Baloo L, Sharma NK. Bioremediation of Total Petroleum Hydrocarbons (TPH) by Bioaugmentation and Biostimulation in Water with Floating Oil Spill Containment Booms as Bioreactor Basin. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18052226. [PMID: 33668225 PMCID: PMC7956214 DOI: 10.3390/ijerph18052226] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 02/17/2021] [Accepted: 02/17/2021] [Indexed: 11/30/2022]
Abstract
A crude oil spill is a common issue during offshore oil drilling, transport and transfer to onshore. Second, the production of petroleum refinery effluent is known to cause pollution due to its toxic effluent discharge. Sea habitats and onshore soil biota are affected by total petroleum hydrocarbons (TPH) as a pollutant in their natural environment. Crude oil pollution in seawater, estuaries and beaches requires an efficient process of cleaning. To remove crude oil pollutants from seawater, various physicochemical and biological treatment methods have been applied worldwide. A biological treatment method using bacteria, fungi and algae has recently gained a lot of attention due to its efficiency and lower cost. This review introduces various studies related to the bioremediation of crude oil, TPH and related petroleum products by bioaugmentation and biostimulation or both together. Bioremediation studies mentioned in this paper can be used for treatment such as emulsified residual spilled oil in seawater with floating oil spill containment booms as an enclosed basin such as a bioreactor, for petroleum hydrocarbons as a pollutant that will help environmental researchers solve these problems and completely clean-up oil spills in seawater.
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Affiliation(s)
- Khalid Sayed
- Civil and Environmental Engineering Department, Universiti Teknologi Petronas, Seri Iskandar, Perak 32610, Malaysia;
- Correspondence: ; Tel.: +60-0102547454
| | - Lavania Baloo
- Civil and Environmental Engineering Department, Universiti Teknologi Petronas, Seri Iskandar, Perak 32610, Malaysia;
| | - Naresh Kumar Sharma
- Kalasalingam Academy of Research and Education, Krishnankoil, Srivilliputhur, Tamil Nadu 626128, India;
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23
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Andreolli M, Lampis S, Brignoli P, Vallini G. Mesocosm-based simulations to optimize a bioremediation strategy for the effective restoration of wildfire-impacted soils contaminated with high-molecular-weight hydrocarbons. J Appl Microbiol 2021; 131:1249-1260. [PMID: 33507603 DOI: 10.1111/jam.15018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 01/03/2021] [Accepted: 01/23/2021] [Indexed: 11/29/2022]
Abstract
AIMS We obtained four microbial isolates from soil exposed to forest fire and evaluated their potential bioremediation activity when combined with a biosurfactant-producing bacterial strain for the decontamination of wildfire-impacted soil polluted with high-molecular-weight (HMW) hydrocarbons. METHODS AND RESULTS We established mesocosm trials to compare three bioremediation strategies: natural attenuation, bioaugmentation and biostimulation. Chemical analysis, culture-dependent and culture-independent methods were used to evaluate the bioremediation efficiency and speciation of the microbial cenoses based on these approaches. After treatment for 90 days, bioaugmentation removed 75·2-75·9% of the HMW hydrocarbons, biostimulation removed 63·2-69·5% and natural attenuation removed ~22·5%. Hydrocarbon degradation was significantly enhanced in the mesocosm supplemented with the biosurfactant-producing bacterial strain after 20 and 50 days of treatment compared to the other bioremediation strategies. CONCLUSIONS We found that the bioaugmentation approach was more effective than biostimulation and natural attenuation for the removal of HMW hydrocarbons from fire-impacted soil. SIGNIFICANCE AND IMPACT OF THE STUDY Our study showed that micro-organisms from wildfire-impacted soil show significant potential for bioremediation, and that biosurfactant-producing bacterial strains can be combined with them as part of an effective bioremediation strategy.
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Affiliation(s)
- M Andreolli
- Department of Biotechnology, University of Verona, Verona, Italy
| | - S Lampis
- Department of Biotechnology, University of Verona, Verona, Italy
| | - P Brignoli
- Centre for Geotechnologies, University of Siena, San Giovanni Valdarno, Italy
| | - G Vallini
- Department of Biotechnology, University of Verona, Verona, Italy
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24
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Hassanshahian M, Amirinejad N, Askarinejad Behzadi M. Crude oil pollution and biodegradation at the Persian Gulf: A comprehensive and review study. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2020; 18:1415-1435. [PMID: 33312652 PMCID: PMC7721969 DOI: 10.1007/s40201-020-00557-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 09/29/2020] [Indexed: 06/01/2023]
Abstract
The Persian Gulf consider as the fundamental biological marine condition between the seas. There is a different assortment of marine life forms including corals, wipes, and fish in this marine condition. Mangrove timberlands are found all through this sea-going biological system. Sullying of the Persian Gulf to oil-based goods is the principle of danger to this marine condition and this contamination can effectively affect this differing marine condition. Numerous specialists examined the result of oil contamination on Persian Gulf marine creatures including corals sponges, bivalves, and fishes. These analysts affirmed this oil contamination on the Persian Gulf significantly diminished biodiversity. Diverse microorganisms fit to consume oil-based commodities detailed by various scientists from the Persian Gulf and their capacity to the debasement of unrefined petroleum has been examined. There has additionally been little exploration of cyanobacteria, yeast, and unrefined petroleum debasing organisms in this sea-going environment. Biosurfactants are amphipathic molecules that upgrade the disintegration of oil and increment their bioavailability to corrupt microscopic organisms. Additionally, biosurfactant-producing bacteria were discovered from the Persian Gulf, and the capability to degradation of crude oil in microscale was evaluated. The current review article aims to collect the finding of various researches performed in the Persian Gulf on oil pollution and crude-oil biodegradation. It is expected that by applying biological methods in combination with mechanical and chemical methods, the hazard consequences of crude-oil contamination on this important aquatic ecosystem at the world will be mitigated and a step towards preserving this diverse marine environment.
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Affiliation(s)
- Mehdi Hassanshahian
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Nazanin Amirinejad
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
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25
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Hassanshahi N, Hu G, Li J. Application of Ionic Liquids for Chemical Demulsification: A Review. Molecules 2020; 25:E4915. [PMID: 33114253 PMCID: PMC7660632 DOI: 10.3390/molecules25214915] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 10/16/2020] [Accepted: 10/19/2020] [Indexed: 01/17/2023] Open
Abstract
In recent years, ionic liquids have received increasing interests as an effective demulsifier due to their characteristics of non-flammability, thermal stability, recyclability, and low vapor pressure. In this study, emulsion formation and types, chemical demulsification system, the application of ionic liquids as a chemical demulsifier, and key factors affecting their performance were comprehensively reviewed. Future challenges and opportunities of ionic liquids application for chemical demulsification were also discussed. The review indicted that the demulsification performance was affected by the type, molecular weight, and concentration of ionic liquids. Moreover, other factors, including the salinity of aqueous phase, temperature, and oil types, could affect the demulsification process. It can be concluded that ionic liquids can be used as a suitable substitute for commercial demulsifiers, but future efforts should be required to develop non-toxic and less expensive ionic liquids with low viscosity, and the demulsification efficiency could be improved through the application of ionic liquids with other methods such as organic solvents.
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Affiliation(s)
- Nahid Hassanshahi
- Environmental Engineering Program, University of Northern British Columbia, Prince George, BC V2N 4Z9, Canada;
| | - Guangji Hu
- School of Engineering, University of British Columbia, Kelowna, BC V1V 1V7, Canada
| | - Jianbing Li
- Environmental Engineering Program, University of Northern British Columbia, Prince George, BC V2N 4Z9, Canada;
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26
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Blanton AG, Peterson BF. Symbiont-Mediated Insecticide Detoxification as an Emerging Problem in Insect Pests. Front Microbiol 2020; 11:547108. [PMID: 33101225 PMCID: PMC7554331 DOI: 10.3389/fmicb.2020.547108] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 09/09/2020] [Indexed: 01/01/2023] Open
Abstract
Pesticide use is prevalent with applications from the backyard gardener to large-scale agriculture and combatting pests in homes and industrial settings. Alongside the need to control unwanted pests comes the selective pressure generated by sustained pesticide use has become a concern leading to environmental contamination, pest resistance, and, thus, reduced pesticide efficacy. Despite efforts to improve the environmental impact and reduce off-target effects, chemical pesticides are relied on and control failures are costly. Though pesticide resistance mechanisms vary, one pattern that has recently emerged is symbiont-mediated detoxification within insect pests. The localization within the insect host, the identity of the symbiotic partner, and the stability of the associations across different systems vary. The diversity of insects and ecological settings linked to this phenomenon are broad. In this mini-review, we summarize the recent trend of insecticide detoxification modulated by symbiotic associations between bacteria and insects, as well as highlight the implications for pesticide development, pest management strategies, and pesticide bioremediation.
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Affiliation(s)
- Alison G Blanton
- Department of Biological Sciences, Southern Illinois University Edwardsville, Edwardsville, IL, United States
| | - Brittany F Peterson
- Department of Biological Sciences, Southern Illinois University Edwardsville, Edwardsville, IL, United States
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27
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Araújo WJ, Oliveira JS, Araújo SCS, Minnicelli CF, Silva-Portela RCB, da Fonseca MMB, Freitas JF, Silva-Barbalho KK, Napp AP, Pereira JES, Peralba MCR, Passaglia LMP, Vainstein MH, Agnez-Lima LF. Microbial Culture in Minimal Medium With Oil Favors Enrichment of Biosurfactant Producing Genes. Front Bioeng Biotechnol 2020; 8:962. [PMID: 32850771 PMCID: PMC7431673 DOI: 10.3389/fbioe.2020.00962] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 07/24/2020] [Indexed: 11/29/2022] Open
Abstract
The waste produced by petrochemical industries has a significant environmental impact. Biotechnological approaches offer promising alternatives for waste treatment in a sustainable and environment-friendly manner. Microbial consortia potentially clean up the wastes through degradation of hydrocarbons using biosurfactants as adjuvants. In this work, microbial consortia were obtained from a production water (PW) sample from a Brazilian oil reservoir using enrichment and selection approaches in the presence of oil as carbon source. A consortium was obtained using Bushnell-Haas (BH) mineral medium with petroleum. In parallel, another consortium was obtained in yeast extract peptone dextrose (YPD)-rich medium and was subsequently compared to the BH mineral medium with petroleum. Metagenomic sequencing of these microbial communities showed that the BH consortium was less diverse and predominantly composed of Brevibacillus genus members, while the YPD consortium was taxonomically more diverse. Functional annotation revealed that the BH consortium was enriched with genes involved in biosurfactant synthesis, while the YPD consortium presented higher abundance of hydrocarbon degradation genes. The comparison of these two consortia against consortia available in public databases confirmed the enrichment of biosurfactant genes in the BH consortium. Functional assays showed that the BH consortium exhibits high cellular hydrophobicity and formation of stable emulsions, suggesting that oil uptake by microorganisms might be favored by biosurfactants. In contrast, the YPD consortium was more efficient than the BH consortium in reducing interfacial tension. Despite the genetic differences between the consortia, analysis by a gas chromatography-flame ionization detector showed few significant differences regarding the hydrocarbon degradation rates. Specifically, the YPD consortium presented higher degradation rates of C12 to C14 alkanes, while the BH consortium showed a significant increase in the degradation of some polycyclic aromatic hydrocarbons (PAHs). These data suggest that the enrichment of biosurfactant genes in the BH consortium could promote efficient hydrocarbon degradation, despite its lower taxonomical diversity compared to the consortium enriched in YPD medium. Together, these results showed that cultivation in a minimal medium supplemented with oil was an efficient strategy in selecting biosurfactant-producing microorganisms and highlighted the biotechnological potential of these bacterial consortia in waste treatment and bioremediation of impacted areas.
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Affiliation(s)
- W J Araújo
- Laboratório de Biologia Molecular e Genômica, Departamento de Biologia Celular e Genética, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Brazi
| | - J S Oliveira
- INESC-ID/IST - Instituto de Engenharia de Sistemas e Computadores/Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - S C S Araújo
- Laboratório de Biologia Molecular e Genômica, Departamento de Biologia Celular e Genética, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Brazi
| | - C F Minnicelli
- Laboratório de Biologia Molecular e Genômica, Departamento de Biologia Celular e Genética, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Brazi
| | - R C B Silva-Portela
- Laboratório de Biologia Molecular e Genômica, Departamento de Biologia Celular e Genética, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Brazi
| | - M M B da Fonseca
- Laboratório de Biologia Molecular e Genômica, Departamento de Biologia Celular e Genética, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Brazi
| | - J F Freitas
- Laboratório de Biologia Molecular e Genômica, Departamento de Biologia Celular e Genética, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Brazi
| | - K K Silva-Barbalho
- Laboratório de Biologia Molecular e Genômica, Departamento de Biologia Celular e Genética, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Brazi
| | - A P Napp
- Laboratório de Fungos de Importância Médica e Biotecnológica, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - J E S Pereira
- Laboratório de Fungos de Importância Médica e Biotecnológica, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - M C R Peralba
- Laboratório de Química Analítica e Ambiental, Departamento de Química, Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - L M P Passaglia
- Laboratório de Genética Molecular Vegetal, Departamento de Genética, Instituto de Biociência, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - M H Vainstein
- Laboratório de Fungos de Importância Médica e Biotecnológica, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - L F Agnez-Lima
- Laboratório de Biologia Molecular e Genômica, Departamento de Biologia Celular e Genética, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Brazi
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Tanzadeh J, Ghasemi MF, Anvari M, Issazadeh K. Biological removal of crude oil with the use of native bacterial consortia isolated from the shorelines of the Caspian Sea. BIOTECHNOL BIOTEC EQ 2020. [DOI: 10.1080/13102818.2020.1756408] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Affiliation(s)
- Jina Tanzadeh
- Department of Microbiology, Faculty of Basic Sciences, Lahijan Branch, Islamic Azad University, Lahijan, Iran
| | - Mohammad Faezi Ghasemi
- Department of Microbiology, Faculty of Basic Sciences, Lahijan Branch, Islamic Azad University, Lahijan, Iran
| | - Masumeh Anvari
- Department of Microbiology, Faculty of Basic Sciences, Rasht Branch, Islamic Azad University, Rasht, Iran
| | - Khosro Issazadeh
- Department of Microbiology, Faculty of Basic Sciences, Lahijan Branch, Islamic Azad University, Lahijan, Iran
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29
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Shinde VL, Suneel V, Rathore C, Shenoy BD. Degradation of tarballs using associated bacterial consortia. 3 Biotech 2020; 10:109. [PMID: 32099747 DOI: 10.1007/s13205-020-2095-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 01/23/2020] [Indexed: 10/25/2022] Open
Abstract
Tarballs are semi-solid blobs of crude-oil formed in marine environment. Microbial degradation of tarballs is poorly understood, though there are indications that tarball-associated microbes can degrade recalcitrant hydrocarbons present in tarballs. In this study, 38 tarball-associated bacteria from Betul beach, Goa, India were initially screened for crude oil degradation. Based on preliminary studies and literature survey, four bacterial strains, Alcanivorax sp. Betul-O, Marinobacter sp. Betul-26, Pseudomonas sp. Betul-14, and Pseudomonas sp. Betul-M were selected for bacterial consortia preparation. Eleven bacterial consortia were prepared and studied for degradation of n-alkanes and polycyclic aromatic hydrocarbon compounds (PAHs) of tarballs based on gravimetric and GC-MS-MS analyses. The bacterial consortia depleted 53.69-97.78% and 22.78-61.98% of n-alkanes and PAH compounds, respectively, within 45 days. Bacterial consortium comprising Pseudomonas sp. Betul-14, Pseudomonas sp. Betul-M, and Alcanivorax sp. Betul-O exhibited promising tarball degradation abilities with 97.78% and 61.98% degradation of n-alkanes and PAH, respectively, within 45 days. Further research is required to obtain insights into degradation products and possible pathways involved.
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30
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Valencia-Agami SS, Cerqueda-García D, Putzeys S, Uribe-Flores MM, García-Cruz NU, Pech D, Herrera-Silveira J, Aguirre-Macedo ML, García-Maldonado JQ. Changes in the Bacterioplankton Community Structure from Southern Gulf of Mexico During a Simulated Crude Oil Spill at Mesocosm Scale. Microorganisms 2019; 7:microorganisms7100441. [PMID: 31614583 PMCID: PMC6843455 DOI: 10.3390/microorganisms7100441] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 09/28/2019] [Accepted: 10/10/2019] [Indexed: 12/24/2022] Open
Abstract
The southern Gulf of Mexico (sGoM) is highly susceptible to receiving environmental impacts due to the recent increase in oil-related activities. In this study, we assessed the changes in the bacterioplankton community structure caused by a simulated oil spill at mesocosms scale. The 16S rRNA gene sequencing analysis indicated that the initial bacterial community was mainly represented by Gamma-proteobacteria, Alpha-proteobacteria, Flavobacteriia, and Cyanobacteria. The hydrocarbon degradation activity, measured as the number of culturable hydrocarbonoclastic bacteria (CHB) and by the copy number of the alkB gene, was relatively low at the beginning of the experiment. However, after four days, the hydrocarbonoclastic activity reached its maximum values and was accompanied by increases in the relative abundance of the well-known hydrocarbonoclastic Alteromonas. At the end of the experiment, the diversity was restored to similar values as those observed in the initial time, although the community structure and composition were clearly different, where Marivita, Pseudohongiella, and Oleibacter were detected to have differential abundances on days eight–14. These changes were related with total nitrogen (p value = 0.030 and r2 = 0.22) and polycyclic aromatic hydrocarbons (p value = 0.048 and r2 = 0.25), according to PERMANOVA. The results of this study contribute to the understanding of the potential response of the bacterioplankton from sGoM to crude oil spills.
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Affiliation(s)
- Sonia S Valencia-Agami
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mérida, Yucatán 97310, Mexico.
| | - Daniel Cerqueda-García
- Consorcio de Investigación del Golfo de México (CIGoM)-Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mérida, Yucatán 97310, Mexico.
| | - Sébastien Putzeys
- Consorcio de Investigación del Golfo de México (CIGoM)-Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mérida, Yucatán 97310, Mexico.
| | - María Magdalena Uribe-Flores
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mérida, Yucatán 97310, Mexico.
| | - Norberto Ulises García-Cruz
- Consorcio de Investigación del Golfo de México (CIGoM)-Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mérida, Yucatán 97310, Mexico.
| | - Daniel Pech
- Laboratorio de Biodiversidad Marina y Cambio Climático, El Colegio de la Frontera Sur, Lerma Campeche, Campeche 24500, Mexico.
| | - Jorge Herrera-Silveira
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mérida, Yucatán 97310, Mexico.
| | - M Leopoldina Aguirre-Macedo
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mérida, Yucatán 97310, Mexico.
| | - José Q García-Maldonado
- CONACYT - Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mérida, Yucatán 97310, Mexico.
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Mahjoubi M, Aliyu H, Cappello S, Naifer M, Souissi Y, Cowan DA, Cherif A. The genome of Alcaligenes aquatilis strain BU33N: Insights into hydrocarbon degradation capacity. PLoS One 2019; 14:e0221574. [PMID: 31550268 PMCID: PMC6759156 DOI: 10.1371/journal.pone.0221574] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Accepted: 08/10/2019] [Indexed: 01/12/2023] Open
Abstract
Environmental contamination with hydrocarbons though natural and anthropogenic activities is a serious threat to biodiversity and human health. Microbial bioremediation is considered as the effective means of treating such contamination. This study describes a biosurfactant producing bacterium capable of utilizing crude oil and various hydrocarbons as the sole carbon source. Strain BU33N was isolated from hydrocarbon polluted sediments from the Bizerte coast (northern Tunisia) and was identified as Alcaligenes aquatilis on the basis of 16S rRNA gene sequence analysis. When grown on crude oil and phenanthrene as sole carbon and energy sources, isolate BU33N was able to degrade ~86%, ~56% and 70% of TERHc, n-alkanes and phenanthrene, respectively. The draft genome sequence of the A. aquatilis strain BU33N was assembled into one scaffold of 3,838,299 bp (G+C content of 56.1%). Annotation of the BU33N genome resulted in 3,506 protein-coding genes and 56 rRNA genes. A large repertoire of genes related to the metabolism of aromatic compounds including genes encoding enzymes involved in the complete degradation of benzoate were identified. Also genes associated with resistance to heavy metals such as copper tolerance and cobalt-zinc-cadmium resistance were identified in BU33N. This work provides insight into the genomic basis of biodegradation capabilities and bioremediation/detoxification potential of A. aquatilis BU33N.
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Affiliation(s)
- Mouna Mahjoubi
- Univ. Manouba, ISBST, BVBGR-LR11ES31, Biotechpole SidiThabet, Ariana, Tunisia
| | - Habibu Aliyu
- Institute of Process Engineering in Life Science 2: Technical Biology, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Simone Cappello
- Istituto per l’Ambiente Marino Costiero (IAMC)-CNR of Messina. Sp. San Raineri, Messina, Italy
| | - Mohamed Naifer
- Univ. Manouba, ISBST, BVBGR-LR11ES31, Biotechpole SidiThabet, Ariana, Tunisia
| | - Yasmine Souissi
- Univ. Manouba, ISBST, BVBGR-LR11ES31, Biotechpole SidiThabet, Ariana, Tunisia
| | - Don A. Cowan
- Centre for Microbial Ecology and Genomics, University of Pretoria, Pretoria, South Africa
| | - Ameur Cherif
- Univ. Manouba, ISBST, BVBGR-LR11ES31, Biotechpole SidiThabet, Ariana, Tunisia
- * E-mail:
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32
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Sampaio CJS, Souza JRBD, Carvalho GCD, Quintella CM, Roque MRDA. Analysis of petroleum biodegradation by a bacterial consortium isolated from worms of the polychaeta class (Annelida): Implications for NPK fertilizer supplementation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 246:617-624. [PMID: 31207500 DOI: 10.1016/j.jenvman.2019.06.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 05/28/2019] [Accepted: 06/05/2019] [Indexed: 06/09/2023]
Abstract
Degradation of petroleum hydrocarbons using bacterial consortia may be a means of optimizing bioremediation techniques. In this study, bacterial strains were isolated from the digestive tract of polychaete worms and evaluated concerning the potential of the bacteria to degrade petroleum compounds (Acinetobacter sp., Bacillus sp., Pantoea sp. and Enterobacter sp.). The strains were separately screened regarding their potential to degrade oil after 24 h. The main experiment was carried out for 30 days with the addition of nitrogen, phosphorus and potassium (NPK) after 15 days (Bact-NPK15) and 28 days (Bact-NPK28) and without NPK (Bact). The Bact treatment biomass remained stable until the 20th day of the experiment. C13-C40 n-alkanes were degraded with all treatments in the following order: Bact>Bact-NPK28>Bact-NPK15. Significant differences were observed between the controls and all treatments (p = 0.00031). Measurement of polycyclic aromatic hydrocarbons (PAHs) indicates a lower contribution of these compounds in the Bact-NPK28 treatment, although no significant difference between groups was observed. Bact-NPK28 was able to remove 40% of naphthalene, while Bact-NPK15 removed 20%; this effect was not observed in Bact. Higher hopane degradation levels were observed in Bact and, to a lesser extent, in Bact-NPK28. NPK application for 28 days mainly favored PAH degradation. The evaluated consortium thus exhibits potential in the bioremediation of petroleum-contaminated areas.
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Affiliation(s)
- Carla Jaqueline Silva Sampaio
- Laboratório de Microbiologia Aplicada e Bioprospecção, Instituto de Ciências da Saúde, Departamento de Biointeração, Universidade Federal da Bahia (UFBA), Campus Canela, 40110-100, Salvador, Bahia, Brazil; Centro Interdisciplinar Em Energia e Ambiente, Universidade Federal da Bahia (UFBA), Campus Federação/Ondina, 40170-115, Salvador, Bahia, Brazil
| | - José Roberto Bispo de Souza
- Laboratório de Física Nuclear Aplicada, Instituto de Física, Departamento de Física da Terra e Do Meio Ambiente, Universidade Federal da Bahia (UFBA), Campus Ondina, 40170-140, Salvador, Bahia, Brazil
| | - Gilson Correia de Carvalho
- Laboratório de Modelagem de Dados Biológicos, Instituto de Ciências da Saúde, Departamento de Biointeração, Universidade Federal da Bahia (UFBA), Campus Canela, 40110-100, Salvador, Bahia, Brazil
| | - Cristina Maria Quintella
- Laboratório de Cinética e Dinâmica Molecular, Instituto de Química, Departamento de Química Geral e Inorgânica, Universidade Federal da Bahia (UFBA), Campus Ondina, 40170-290, Salvador, Bahia, Brazil
| | - Milton Ricardo de Abreu Roque
- Laboratório de Microbiologia Aplicada e Bioprospecção, Instituto de Ciências da Saúde, Departamento de Biointeração, Universidade Federal da Bahia (UFBA), Campus Canela, 40110-100, Salvador, Bahia, Brazil; Centro Interdisciplinar Em Energia e Ambiente, Universidade Federal da Bahia (UFBA), Campus Federação/Ondina, 40170-115, Salvador, Bahia, Brazil.
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Dashtbozorg M, Riyahi Bakhtiari A, Shushizadeh MR, Taghavi L. Quantitative evaluation of n-alkanes, PAHs, and petroleum biomarker accumulation in beach-stranded tar balls and coastal surface sediments in the Bushehr Province, Persian Gulf (Iran). MARINE POLLUTION BULLETIN 2019; 146:801-815. [PMID: 31426222 DOI: 10.1016/j.marpolbul.2019.07.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 06/29/2019] [Accepted: 07/10/2019] [Indexed: 06/10/2023]
Abstract
Coastal areas within the Bushehr Province (BP), Persian Gulf, Iran, face great challenges due to the heavy organic contamination caused by rapid industrialization, and the presence of numerous oil fields. In addition, in 2014, a significant number of tar balls are found along the coasts of BP. A total of 96 samples (48 coastal sediments and 48 tar balls) were taken from eight sampling points at the BP coast during the summer of 2014. These samples were analyzed to identify the sources and characteristics of their organic matter using diagnostic ratios and fingerprint analysis based on the distribution of the source-specific biomarkers of n-alkanes, PAHs,1 hopanes and steranes. Mean concentration of n-alkanes (μg g-1 dw) and PAHs (ng g-1 dw) varied respectively from 405 to 220,626, and 267 to 23,568 in coastal sediments, while ranged respectively from 664 to 145,285 and 390 to 46,426 in tar balls. In addition, mean concentration of hopanes and steranes (ng g-1 dw) were between 18.17 and 3349 and 184.66 to 1578 in coastal sediments, whereas in tar balls were 235-1899 and 520-1504, respectively. Pri/Phy2 ratio was 0.25 to 1.51 (0.65) and 0.36 to 1 (0.63) in coastal sediment and tar ball samples, respectively, and the occurrence of UCM3 in both matrices, reflecting the petrogenic OM4 inputs and chronic oil contamination, respectively. The C30 and C29 homologues followed Gammacerane were detected in both matrices, in particular those collected from intensive industrial activities, suggesting petrogenic sources of OM. The coastal sediment PAHs profiles were significantly dominated by HMW5-PAHs in the Bahregan Beach (BAB) (78% of total PAHs), Bandare-Genaveh (GP) (66%), and Bandare-Bushehr (BUB) (61%) stations, while the Bashi Beach (BSB) (40%), Bandare-Kangan (KP) (57%), and Bandare-Asaluyeh (AP) (51%) stations exhibited higher proportion of LMW6-PAHs. PCA7 indicated that the tar ball and coastal sediment samples deposited along the Southwest of the BP beaches are most likely originated from the Abuzar oil. Based on the intensity of the anthropogenic activities, NPMDS8 analysis revealed that the GP, BAB, NNP, AP, and KP sampling sites had a high concentration of detected organic pollutants. To the best of our knowledge, this is the first study that investigates oil pollution in costal sediments and tar balls in the BP, providing insights in to the fate of oil in the coastal areas of the Persian Gulf, Iran.
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Affiliation(s)
- Mehdi Dashtbozorg
- Department of Environmental Science, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Alireza Riyahi Bakhtiari
- Department of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Noor, Mazandaran, Iran.
| | - Mohammad Reza Shushizadeh
- Marine Pharmaceutical Science Research Center and Department of Medicinal Chemistry, Ahvaz Jundishahpour University of Medical Science, Ahvaz, Iran
| | - Lobat Taghavi
- Department of Environmental Science, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Louvado A, Coelho FJRC, Oliveira V, Gomes H, Cleary DFR, Simões MMQ, Cunha A, Gomes NCM. Microcosm evaluation of the impact of oil contamination and chemical dispersant addition on bacterial communities and sediment remediation of an estuarine port environment. J Appl Microbiol 2019; 127:134-149. [PMID: 30907485 DOI: 10.1111/jam.14261] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 02/26/2019] [Accepted: 03/04/2019] [Indexed: 01/21/2023]
Abstract
AIM To evaluate the interactive effects of oil contamination and chemical dispersant application on bacterial composition and sediment remediation of an estuarine port environment. METHODS AND RESULTS A multifactorial controlled microcosm experiment was set up using sediment cores retrieved from an estuarine port area located at Ria de Aveiro lagoon (Aveiro, Portugal). An oil spill with and without chemical dispersant addition was simulated. Sediment oil hydrocarbon concentrations and benthic bacterial community structure were evaluated by GC-MS and 16S rRNA high-throughput sequencing respectively. Although initially (first 10 days) chemical dispersion of oil enhanced the concentrations of the heavier polycyclic aromatic hydrocarbons and of the C22 -C30 alkane group, with time (21 days), no significant differences in hydrocarbon concentrations were detected among treatments. Moreover, no significant changes were detected in the structure of sediment bacterial communities, which mainly consisted of operational taxonomic units related to hydrocarbon-contaminated marine environments. We hypothesize that the environmental background of the sampling site preconditioned the communities' response to additional contamination. CONCLUSION This experimental microcosm study showed that the chemical dispersion of oil did not influence sediment remediation or bacterial community composition. SIGNIFICANCE AND IMPACT OF THE STUDY Our study showed that chemical dispersion of oil may not improve the remediation of port sediments. Further studies are needed to investigate the impact of chemical dispersants in combination with bioremediation strategies on the process of sediment remediation in port areas.
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Affiliation(s)
- A Louvado
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | - F J R C Coelho
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | - V Oliveira
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | - H Gomes
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | - D F R Cleary
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | - M M Q Simões
- Department of Chemistry & QOPNA, University of Aveiro, Aveiro, Portugal
| | - A Cunha
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | - N C M Gomes
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
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Tian X, Wang X, Peng S, Wang Z, Zhou R, Tian H. Isolation, screening, and crude oil degradation characteristics of hydrocarbons-degrading bacteria for treatment of oily wastewater. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2018; 78:2626-2638. [PMID: 30767927 DOI: 10.2166/wst.2019.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The aim of this study was to isolate hydrocarbons-degrading bacteria for treatment of oily wastewater from long-standing petroleum-polluted sediments in Bohai Bay, China. Six hydrocarbons-degrading bacteria were screened and identified as Pseudomonas sp. and Bacillus sp. A new approach using a combination of various bacterial species in petroleum biodegradation was proposed and evaluated for its degradation characteristics. Gas chromatography-flame ionization detection (GC-FID) analysis showed that mixed bacterial agents (YJ01) degraded 80.64% of crude oil and 76.30% of crude oil alkanes, exhibiting good biodegradation effect. Besides, after 14 days of culture, the biodegradation assessment markers, pristane and phytane, showed significant degradation rates of 46.75% and 78.23%, respectively. Kinetic analysis indicated that the degradation trends followed a single first-order kinetics model and the degradation half-life (t1/2) of 15 g/L crude oil was significantly shorter (5.48 days). These results indicated that YJ01 could degrade a wider range of hydrocarbons as well as some recalcitrant hydrocarbon components, and can be applied for bioremediation and treatment of oil-contaminated environment.
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Affiliation(s)
- Xiumei Tian
- School of Environmental Science & Safety Engineering, Tianjin University of Technology, Tianjin 300384, China E-mail:
| | - Xiaoli Wang
- School of Environmental Science & Safety Engineering, Tianjin University of Technology, Tianjin 300384, China E-mail:
| | - Shitao Peng
- Laboratory of Environmental protection in Water Transport Engineering, Tianjin Research Institute for Water Transport Engineering, Ministry of Transport, Tianjin 300456, China
| | - Zhi Wang
- School of Environmental Science & Safety Engineering, Tianjin University of Technology, Tianjin 300384, China E-mail:
| | - Ran Zhou
- Laboratory of Environmental protection in Water Transport Engineering, Tianjin Research Institute for Water Transport Engineering, Ministry of Transport, Tianjin 300456, China
| | - He Tian
- Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control, School of Mechanical Engineering, Tianjin University of Technology, Tianjin 300384, China
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Abarian M, Hassanshahian M, Badoei Dalfard A. Study the Aromatic-Degrading Bacteria from Effluents of Sarcheshmeh Copper Mine, Iran. Polycycl Aromat Compd 2018. [DOI: 10.1080/10406638.2018.1509361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Moslem Abarian
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Mehdi Hassanshahian
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Arastoo Badoei Dalfard
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
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Kadri T, Magdouli S, Rouissi T, Brar SK, Daghrir R, Lauzon JM. Bench-scale production of enzymes from the hydrocarbonoclastic bacteria Alcanivorax borkumensis and biodegradation tests. J Biotechnol 2018; 283:105-114. [PMID: 30071247 DOI: 10.1016/j.jbiotec.2018.07.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 07/24/2018] [Accepted: 07/29/2018] [Indexed: 11/30/2022]
Abstract
This study investigates motor oil (3, 5, 7.5 and 10% (v v-1)) as a sole carbon source for the production of Alcanivorax borkumensis in shake flasks and a 5 L bench-scale fermenter in comparison to the standard media. Shake flask studies showed a significant and higher cell growth (p=0.000038), lipase (p = 0.006900) and alkane hydroxylase production (p = 0.000921) by Alcanivorax borkumensis when motor oil was used as the substrate. Based on Tukey post-hoc tests, 5% motor oil concentration was selected as the optimal substrate concentration. The 5 L fermenter experiments conducted using motor oil at 5% (v v-1) concentration, under controlled conditions exhibited significant and higher alkane hydroxylase and lipase activities (55.6 U mL-1 (p = 0.018418) and 208.30 U mL-1 (p = 0.020087), respectively) as compared with those of motor oil at 3% (v v-1) and n-hexadecane at 3% (v v-1) concentration which was used as control. Cell growth was significantly higher when motor oil (3 or 5%) was used as a substrate (p = 0.024705). Enzymatic degradation tested on two different polycyclic aromatic hydrocarbons (PAHs) contaminated groundwaters showed 37.4% removal after 5 days with a degradation rate of 196.6 ppb day-1 and 82.8% removal after 10 days with a degradation rate of 217.54 ppb day-1 for the 1st site and an almost complete biodegradation with 95% removal and 499.02 ppb day-1 removal rate after only 5 days for the 2nd site.
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Affiliation(s)
- Tayssir Kadri
- INRS-ETE, Université du Québec, 490, Rue de la Couronne, Québec, G1K 9A9, Canada
| | - Sara Magdouli
- INRS-ETE, Université du Québec, 490, Rue de la Couronne, Québec, G1K 9A9, Canada
| | - Tarek Rouissi
- INRS-ETE, Université du Québec, 490, Rue de la Couronne, Québec, G1K 9A9, Canada
| | - Satinder Kaur Brar
- INRS-ETE, Université du Québec, 490, Rue de la Couronne, Québec, G1K 9A9, Canada.
| | - Rimeh Daghrir
- 696, avenue Sainte Croix, Montréal, Québec, H4L 3Y2, Canada
| | - Jean-Marc Lauzon
- TechnoRem Inc., 4701, rue Louis-B.-Mayer, Laval, Québec, H7P 6G5, Canada
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Liu L, Wang L, Song W, Yang L, Yin L, Xia S, Wang H, Strong PJ, Song Z. Crude oil removal from aqueous solution using raw and carbonized Xanthoceras sorbifolia shells. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:29325-29334. [PMID: 30121766 DOI: 10.1007/s11356-018-2895-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 08/02/2018] [Indexed: 06/08/2023]
Abstract
Fruit shell residue from Xanthoceras sorbifolia was investigated as a potential biosorbent to remove crude oil from aqueous solution. The shell powder and its carbonized material were compared while assessing various factors that influenced oil removal capacity. The structure and sorption mechanism were characterized using scanning electron microscopy and Fourier-transform infrared spectroscopy. The oil removal capacity of the raw material (75.1 mg g-1) was better than the carbonized material (49.5 mg g-1). The oil removal capacity increased with greater saponin content, indicating that hydrophobic and lipophilic surface characteristics of the saponins improved adsorption by the raw X. sorbifolia shell. An orthogonal experimental design was used to optimize the adsorption. Using 4 g L-1 of raw X. sorbifolia shell (particle size of < 0.15 mm), the highest crude oil removal efficiency was obtained using an initial oil concentration of 400 mg L-1, adsorption temperature of 30 °C, adsorption time of 10 min at a shaking speed of 150 rpm. The adsorption of crude oil onto X. sorbifolia shell was best described using a pseudo-second-order kinetic model. Raw X. sorbifolia shell material was more efficient than the carbonized material at crude oil removal from aqueous solution. This was attributable to the functional groups of saponins in raw X. sorbifolia shell. This study highlights that some agricultural and forest residues could be a promising source of low-cost biosorbents for oil contaminants from water-without requiring additional processing such as carbonization.
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Affiliation(s)
- Linan Liu
- Institute of Surface-Earth System Science, Tianjin University, Tianjin, 300072, China
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning Province, 110016, People's Republic of China
| | - Lihua Wang
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning Province, 110016, People's Republic of China.
| | - Wenhong Song
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning Province, 110016, People's Republic of China
| | - Liang Yang
- College of Land and Environment, Shenyang Agricultural University, Shenyang, 110866, China
| | - Liming Yin
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning Province, 110016, People's Republic of China
| | - Shaopan Xia
- Institute of Surface-Earth System Science, Tianjin University, Tianjin, 300072, China
| | - Hailong Wang
- School of Environment and Chemical Engineering, Foshan University, Foshan, 528000, Guangdong, China
- School of Environmental and Resource Sciences, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China
| | - Peter James Strong
- Queensland University of Technology, GPO Box 2432, 2 George St, Brisbane, QLD, 4001, Australia
| | - Zhaoliang Song
- Institute of Surface-Earth System Science, Tianjin University, Tianjin, 300072, China.
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Kadri T, Cuprys A, Rouissi T, Brar SK, Daghrir R, Lauzon JM. Nanoencapsulation and release study of enzymes from Alkanivorax borkumensis in chitosan-tripolyphosphate formulation. Biochem Eng J 2018. [DOI: 10.1016/j.bej.2018.05.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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40
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Kadri T, Rouissi T, Magdouli S, Brar SK, Hegde K, Khiari Z, Daghrir R, Lauzon JM. Production and characterization of novel hydrocarbon degrading enzymes from Alcanivorax borkumensis. Int J Biol Macromol 2018; 112:230-240. [DOI: 10.1016/j.ijbiomac.2018.01.177] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Revised: 01/26/2018] [Accepted: 01/27/2018] [Indexed: 11/16/2022]
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Pirrone C, Rossi F, Cappello S, Borgese M, Mancini G, Bernardini G, Gornati R. Evaluation of biomarkers in Mytilus galloprovincialis as an integrated measure of biofilm-membrane bioreactor (BF-MBR) system efficiency in mitigating the impact of oily wastewater discharge to marine environment: a microcosm approach. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 198:49-62. [PMID: 29501937 DOI: 10.1016/j.aquatox.2018.02.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 02/02/2018] [Accepted: 02/23/2018] [Indexed: 06/08/2023]
Abstract
The large volumes of oily wastewater discharged to marine environment cause heavy impacts on the coastal marine ecosystem. The selection of an appropriate technology to reduce these impacts should be based on the respect of the discharge limits and on the effective assessment and monitoring of its effects on biological organism preservation. To this aim, we set up a controlled microcosm-scale system to compare the effects of a treated and untreated oily wastewater discharge in which the restore process is performed through a Membrane Bio-Reactor. The system is completed by other three microcosms to control and isolate any possible concurrent effect on the Mytilus galloprovincialis, used as sentinel organism. Mytilus galloprovincialis have been kept in all these microcosms, and then mRNA expression and morphology were evaluated on gills and digestive gland. The genes considered in this work are Heat Shock Protein 70 and Metallothionein 10, involved in response to physicochemical sublethal stressors, Superoxide dismutase 1, Catalase, and Cytochrome P450 involved in oxidative stress response. Our results evidenced a significant overexpression, both in gills and digestive gland, of HSP70 in samples maintained in the microcosm receiving the untreated effluent, and of MT10 in those animals kept in microcosm where the effluent was treated. Even though the mRNA modifications are considered "primary" and transient responses which do not always correspond to protein content, the study of these modifications can help to gain insights into the mechanisms of action of xenobiotic exposure. Morphological analysis suggested that, although different, depending on the microcosm, the most serious damages were found in the gill epithelium accompanied with severe haemocyte infiltration, whilst in digestive gland the tissue architecture alterations and the haemocyte infiltration were less pronounced. These observations suggest that the immune system was activated as a general response to stressful stimuli such as the presence of toxic compounds. Moreover, the results indicate that the treatment process is useful. In fact, samples derived from the microcosm receiving the treated effluent, even though presenting some signs of stress, seemed to partially recover the normal structure, although their mRNA expression indicated some cellular suffering.
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Affiliation(s)
- Cristina Pirrone
- Department of Biotechnology and Life Sciences, University of Insubria, Via Dunant 3, 21100, Varese, Italy
| | - Federica Rossi
- Department of Biotechnology and Life Sciences, University of Insubria, Via Dunant 3, 21100, Varese, Italy
| | - Simone Cappello
- Institute for Coastal Marine Environment, National Research Center, Via San Raineri 86, 98122 Messina, Italy
| | - Marina Borgese
- Department of Biotechnology and Life Sciences, University of Insubria, Via Dunant 3, 21100, Varese, Italy
| | - Giuseppe Mancini
- Electric, Electronics and Computer Engineering Department, University of Catania, Viale Andrea Doria 6, 95125, Catania, Italy
| | - Giovanni Bernardini
- Department of Biotechnology and Life Sciences, University of Insubria, Via Dunant 3, 21100, Varese, Italy; "The Protein Factory" Research Center, Politecnico di Milano, ICRM-CNR Milano and Università dell'Insubria, Via Mancinelli 7, 20131, Milano, Italy
| | - Rosalba Gornati
- Department of Biotechnology and Life Sciences, University of Insubria, Via Dunant 3, 21100, Varese, Italy; "The Protein Factory" Research Center, Politecnico di Milano, ICRM-CNR Milano and Università dell'Insubria, Via Mancinelli 7, 20131, Milano, Italy.
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Zoccali M, Cappello S, Mondello L. Multilevel characterization of marine microbial biodegradation potentiality by means of flow-modulated comprehensive two-dimensional gas chromatography combined with a triple quadrupole mass spectrometer. J Chromatogr A 2018; 1547:99-106. [DOI: 10.1016/j.chroma.2018.03.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 02/17/2018] [Accepted: 03/08/2018] [Indexed: 12/30/2022]
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Shift in microbial group during remediation by enhanced natural attenuation (RENA) of a crude oil-impacted soil: a case study of Ikarama Community, Bayelsa, Nigeria. 3 Biotech 2017; 7:152. [PMID: 28597163 DOI: 10.1007/s13205-017-0782-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 02/15/2017] [Indexed: 10/19/2022] Open
Abstract
Acute and chronic pollution of environments with crude oil does not bode well for biota living within the vicinity of polluted environments. This is due to environmental and public health concerns on the negative impact of crude oil pollution on living organisms. Enhancing microbial activities by adding nutrients and other amendments had proved effective in pollutant removal during bioremediation. This study was carried out to determine how microbial group respond during remediation by enhanced natural attenuation (RENA) during a field-scale bioremediation. Crude oil-polluted soil samples were collected (before, during, and after remediation) from a site undergoing remediation by enhanced natural attenuation (RENA) at Ikarama Community, Bayelsa State, Nigeria, and were analyzed for total petroleum hydrocarbon (TPH), polyaromatic hydrocarbon (PAH), and a shift in microbial community. The gas chromatography-flame ionization detector (GC-FID) results showed that the pollutant concentrations (TPH and PAH) reduced by 98 and 85%, respectively, after the remediation. Culturable hydrocarbon utilizing bacteria (CHUB) was highest (8.3 × 104 cfu/g) for sample collected during the remediation studies, whilst sample collected after remediation had low CHUB (6.1 × 104 cfu/g) compared to that collected before remediation (7.7 × 104 cfu/g). Analysis of 16S rRNA of the isolated CHUB showed they belonged to eight bacterial genera namely: Achromobacter, Alcaligenes, Azospirillus, Bacillus, Lysinibacillus, Ochrobactrum, Proteus, and Pusillimonas, with Alcaligenes as the dominant genus. In this study, it was observed that the bacterial community shifted from mixed group (Gram-positive and -negative) before and during the remediation, to only the latter group after the remediation studies. The betaproteobacteria groups were the dominant isolated bacterial phylotype. This study showed that RENA is an effective method of reducing pollutant concentration in crude oil-polluted sites, and could be applied to other polluted sites in the Niger Delta region of Nigeria to mitigate the devastating effects of crude oil pollution.
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Chen Q, Li J, Liu M, Sun H, Bao M. Study on the biodegradation of crude oil by free and immobilized bacterial consortium in marine environment. PLoS One 2017; 12:e0174445. [PMID: 28346510 PMCID: PMC5367712 DOI: 10.1371/journal.pone.0174445] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 03/09/2017] [Indexed: 11/25/2022] Open
Abstract
Five strains of bacteria, namely, Exiguobacterium sp. ASW-1, Pseudomonas aeruginosa strain ASW-2, Alcaligenes sp. ASW-3, Alcaligenes sp. ASS-1, and Bacillus sp. ASS-2, were isolated from the Zhejiang coast in China. The mixed flora of the five strains performed well with degrading 75.1% crude oil (1%, w/v) in 7 days. The calcium alginate—activated carbon embedding carrier was used to immobilize bacterial consortium. Immobilized cells performed better than free ones in variations of environmental factors containing incubated temperature, initial pH, salinity of the medium and crude oil concentration. The degradation process of crude oil by immobilized bacteria was accelerated compared with that of the free ones. Bacterial consortium showed better performance on biodegradation of normal alkanes than that of PAHs. Improvement of immobilization on the biodegradation efficiency of normal alkanes (31.9%) was apparently high than that of PAHs (1.9%).
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Affiliation(s)
- Qingguo Chen
- College of Marine Science & Technology, Zhejiang Ocean University, Zhoushan, P. R. China
- * E-mail:
| | - Jingjing Li
- College of Marine Science & Technology, Zhejiang Ocean University, Zhoushan, P. R. China
| | - Mei Liu
- College of Marine Science & Technology, Zhejiang Ocean University, Zhoushan, P. R. China
| | - Huiling Sun
- College of Marine Science & Technology, Zhejiang Ocean University, Zhoushan, P. R. China
| | - Mutai Bao
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, P. R. China
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45
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Evaluating the Reliability of Counting Bacteria Using Epifluorescence Microscopy. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2017. [DOI: 10.3390/jmse5010004] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Barbato M, Scoma A, Mapelli F, De Smet R, Banat IM, Daffonchio D, Boon N, Borin S. Hydrocarbonoclastic Alcanivorax Isolates Exhibit Different Physiological and Expression Responses to n-dodecane. Front Microbiol 2016; 7:2056. [PMID: 28066376 PMCID: PMC5174103 DOI: 10.3389/fmicb.2016.02056] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 12/07/2016] [Indexed: 12/28/2022] Open
Abstract
Autochthonous microorganisms inhabiting hydrocarbon polluted marine environments play a fundamental role in natural attenuation and constitute promising resources for bioremediation approaches. Alcanivorax spp. members are ubiquitous in contaminated surface waters and are the first to flourish on a wide range of alkanes after an oil-spill. Following oil contamination, a transient community of different Alcanivorax spp. develop, but whether they use a similar physiological, cellular and transcriptomic response to hydrocarbon substrates is unknown. In order to identify which cellular mechanisms are implicated in alkane degradation, we investigated the response of two isolates belonging to different Alcanivorax species, A. dieselolei KS 293 and A. borkumensis SK2 growing on n-dodecane (C12) or on pyruvate. Both strains were equally able to grow on C12 but they activated different strategies to exploit it as carbon and energy source. The membrane morphology and hydrophobicity of SK2 changed remarkably, from neat and hydrophilic on pyruvate to indented and hydrophobic on C12, while no changes were observed in KS 293. In addition, SK2 accumulated a massive amount of intracellular grains when growing on pyruvate, which might constitute a carbon reservoir. Furthermore, SK2 significantly decreased medium surface tension with respect to KS 293 when growing on C12, as a putative result of higher production of biosurfactants. The transcriptomic responses of the two isolates were also highly different. KS 293 changes were relatively balanced when growing on C12 with respect to pyruvate, giving almost the same amount of upregulated (28%), downregulated (37%) and equally regulated (36%) genes, while SK2 transcription was upregulated for most of the genes (81%) when growing on pyruvate when compared to C12. While both strains, having similar genomic background in genes related to hydrocarbon metabolism, retained the same capability to grow on C12, they nevertheless presented very different physiological, cellular and transcriptomic landscapes.
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Affiliation(s)
- Marta Barbato
- Centre for Microbial Ecology and Technology, Ghent UniversityGhent, Belgium; Department of Food, Environmental and Nutritional Sciences, University of MilanMilan, Italy
| | - Alberto Scoma
- Centre for Microbial Ecology and Technology, Ghent University Ghent, Belgium
| | - Francesca Mapelli
- Department of Food, Environmental and Nutritional Sciences, University of Milan Milan, Italy
| | - Rebecca De Smet
- Department of Medical and Forensic Pathology, University of Ghent Ghent, Belgium
| | - Ibrahim M Banat
- School of Biomedical Sciences, University of Ulster Coleraine, UK
| | - Daniele Daffonchio
- Department of Food, Environmental and Nutritional Sciences, University of MilanMilan, Italy; Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and TechnologyThuwal, Saudi Arabia
| | - Nico Boon
- Centre for Microbial Ecology and Technology, Ghent University Ghent, Belgium
| | - Sara Borin
- Department of Food, Environmental and Nutritional Sciences, University of Milan Milan, Italy
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Pasumarthi R, Mutnuri S. Horizontal gene transfer versus biostimulation: A strategy for bioremediation in Goa. MARINE POLLUTION BULLETIN 2016; 113:271-276. [PMID: 28029340 DOI: 10.1016/j.marpolbul.2016.09.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 09/15/2016] [Accepted: 09/19/2016] [Indexed: 06/06/2023]
Abstract
Bioaugmentation, Biostimulation and Horizontal gene transfer (HGT) of catabolic genes have been proven for their role in bioremediation of hydrocarbons. It also has been proved that selection of either biostimulation or bioremediation varies for every contaminated site. The reliability of HGT compared to biostimulation and bioremediation was not tested. The present study focuses on reliability of biostimulatiion, bioaugmentation and HGT during biodegradation of Diesel oil and Non aqueous phase liquids (NAPL). Pseudomonas aeruginosa (AEBBITS1) having alkB and NDO genes was used for bioaugmentation and the experiment was conducted using seawater as medium. Based on Gas chromatography results diesel was found to be degraded to 100% in both presence and absence of AEBBITS1. Denturing gradient gel electrophoresis result showed same pattern in presence and absence of AEBBITS1 indicating no HGT. NAPL degradation was found to be more by Biostimulated Bioaugmentation compared to biostimulation and bioaugmentation alone. This proves that biostimulated bioaugmentation is better strategy for oil contamination (tarabll) in Velsao beach, Goa.
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Affiliation(s)
- Rajesh Pasumarthi
- Applied and Environmental Biotechnology Laboratory, Department of Biological Sciences, BITS-Pilani, K K Birla Goa Campus, India.
| | - Srikanth Mutnuri
- Applied and Environmental Biotechnology Laboratory, Department of Biological Sciences, BITS-Pilani, K K Birla Goa Campus, India.
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Matturro B, Frascadore E, Cappello S, Genovese M, Rossetti S. In situ detection of alkB2 gene involved in Alcanivorax borkumensis SK2(T) hydrocarbon biodegradation. MARINE POLLUTION BULLETIN 2016; 110:378-382. [PMID: 27315756 DOI: 10.1016/j.marpolbul.2016.06.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 06/08/2016] [Accepted: 06/10/2016] [Indexed: 06/06/2023]
Abstract
This study aimed to develop a new assay based on the whole cell hybridization in order to monitor alkane hydroxylase genes (alkB system) of the marine bacterium Alcanivorax borkumensis SK2(T) commonly reported as the predominant microorganism responsible for the biodegradation of n-alkanes which are the major fraction of petroleum hydrocarbons. The assay based on the whole cell hybridization targeting alkB2 gene was successfully developed and calibrated on a pure culture of Alcanivorax borkumensis SK2(T) with a detection efficiency up to 80%. The approach was further successfully validated on hydrocarbon-contaminated seawater and provided cells abundance (6.74E+04alkB2-carryingcellsmL(-1)) higher of about one order of magnitude than those obtained by qPCR (4.96E+03alkB2genecopiesmL(-1)). This study highlights the validity of the assay for the detection at single cell level of key-functional genes involved in the biodegradation of n-alkanes.
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Affiliation(s)
- Bruna Matturro
- Water Research Institute, IRSA-CNR, Via Salaria km 29,300, Monterotondo, RM, Italy
| | - Emanuela Frascadore
- Water Research Institute, IRSA-CNR, Via Salaria km 29,300, Monterotondo, RM, Italy
| | - Simone Cappello
- Institute of Marine and Coastal Environments, IAMC-CNR, Spianata S. Raineri, 86, Messina, ME, Italy
| | - Mariella Genovese
- Institute of Marine and Coastal Environments, IAMC-CNR, Spianata S. Raineri, 86, Messina, ME, Italy
| | - Simona Rossetti
- Water Research Institute, IRSA-CNR, Via Salaria km 29,300, Monterotondo, RM, Italy.
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49
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Hassanshahian M, Boroujeni NA. Enrichment and identification of naphthalene-degrading bacteria from the Persian Gulf. MARINE POLLUTION BULLETIN 2016; 107:59-65. [PMID: 27114087 DOI: 10.1016/j.marpolbul.2016.04.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 03/11/2016] [Accepted: 04/09/2016] [Indexed: 05/15/2023]
Abstract
Naphthalene is a ubiquitous pollutant of the marine environment, and naphthalene biodegradation has been receiving constant scientific consideration. For cleanup of aromatic contaminated sites, bioremediation methods are considered as economical and safe approaches for the marine environment. The aims of this research are isolation and characterization of naphthalene-degrading bacteria from some marine samples of the Persian Gulf. Fifty four naphthalene-degrading bacteria were isolated from marine samples (sediment and seawater) that are enriched in ONR7a medium with naphthalene as the only carbon source. Some screening tests such as growth at high concentration of naphthalene, bioemulsifier production and surface hydrophobicity were done to select the best and prevalent strains for naphthalene degradation. Determination of the nucleotide sequence of the gene encoding for 16S rRNA shows that these isolated strains belong to these genera: Shewanella, Salegentibacter, Halomonas, Marinobacter, Oceanicola, Idiomarina and Thalassospira. These strains can degrade half of the percentage of naphthalene in 10days of incubation. This research is the first report on isolation of these genera from the Persian Gulf as naphthalene-degrader.
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Affiliation(s)
- Mehdi Hassanshahian
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran.
| | - Negar Amini Boroujeni
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
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50
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Dellagnezze BM, Vasconcellos SP, Angelim AL, Melo VMM, Santisi S, Cappello S, Oliveira VM. Bioaugmentation strategy employing a microbial consortium immobilized in chitosan beads for oil degradation in mesocosm scale. MARINE POLLUTION BULLETIN 2016; 107:107-117. [PMID: 27158046 DOI: 10.1016/j.marpolbul.2016.04.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Revised: 04/06/2016] [Accepted: 04/08/2016] [Indexed: 05/22/2023]
Abstract
A bacterial consortium composed by four metagenomic clones and Bacillus subtilis strain CBMAI 707, all derived from petroleum reservoirs, was entrapped in chitosan beads and evaluated regarding hydrocarbon degradation capability. Experiments were carried out in mesocosm scale (3000L) with seawater artificially polluted with crude oil. At different time intervals, mesocosms were sampled and subjected to GC-FID and microbiological analyses, as total and heterotrophic culturable bacterial abundance (DAPI and CFU count), biological oxygen demand (BOD) and taxonomic diversity (massive sequencing of 16S rRNA genes). The results obtained showed that degradation of n-alkane hydrocarbons was similar between both treatments. However, aromatic compound degradation was more efficient in bioaugmentation treatment, with biodegradation percentages reaching up to 99% in 30days. Community dynamics was different between treatments and the consortium used in the bioaugmentation treatment contributed to a significant increase in aromatic hydrocarbon degradation.
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Affiliation(s)
- B M Dellagnezze
- Division of Microbial Resources, Research Center for Chemistry, Biology and Agriculture (CPQBA), Campinas University - UNICAMP, CP 6171, CEP 13081-970 Campinas, SP, Brazil.
| | - S P Vasconcellos
- Federal University of São Paulo (UNIFESP), Rua Prof. Artur Riedel, 275, CEP 09972-270, Jd. Eldorado, Diadema, SP, Brazil
| | - A L Angelim
- Lembiotech (UFC), Federal University of Ceará, Av. Humberto Monte, 2977, Campus do Pici, Bloco 909, 60455-000, Fortaleza, CE, Brazil
| | - V M M Melo
- Lembiotech (UFC), Federal University of Ceará, Av. Humberto Monte, 2977, Campus do Pici, Bloco 909, 60455-000, Fortaleza, CE, Brazil
| | - S Santisi
- Institute for Coastal Marine Environment (IAMC), Consiglio Nazionale delle Ricerche (CNR) of Messina, Messina, Italy
| | - S Cappello
- Institute for Coastal Marine Environment (IAMC), Consiglio Nazionale delle Ricerche (CNR) of Messina, Messina, Italy
| | - V M Oliveira
- Division of Microbial Resources, Research Center for Chemistry, Biology and Agriculture (CPQBA), Campinas University - UNICAMP, CP 6171, CEP 13081-970 Campinas, SP, Brazil
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