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Maya-Yescas ME, Gutiérrez-Rojas M, García-Rivero M. Enhancing biodegradation of aged hydrocarbon-contaminated soils through toluene addition: assessing effects on solid and slurry phase treatments. Biodegradation 2024:10.1007/s10532-024-10089-y. [PMID: 38910213 DOI: 10.1007/s10532-024-10089-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 06/13/2024] [Indexed: 06/25/2024]
Abstract
The main challenge in treating aged soils highly contaminated with total petroleum hydrocarbons (TPH) is to enhance their bioavailability for microbial degradation. Hydrocarbons in soils undergo chemical changes that make them more resistant to biodegradation. This study investigates toluene's efficacy in enhancing the biodegradation of aged hydrocarbon-contaminated soil containing 292,000 mg TPH kg-1 dry soil. Toluene's effect was compared between solid phase (SOP) and slurry phase (SLP) treatments using a microbial consortium isolated from Cyperus laxus rhizosphere. TPH biodegradation and microbial respiration were measured, the latter to estimate the respiratory quotient (RQ, the ratio between moles of carbon dioxide released and moles of oxygen absorbed during respiration). Toluene significantly accelerated TPH biodegradation in both treatments, achieving ~ 30% higher removal than in a non-solvent control, possibly through improved bioavailability of aromatic compounds and other low molecular weight compounds. According to the RQ analysis, toluene enhanced microbial respiratory processes and hydrocarbon catabolism with higher hydrocarbon mineralization (RQ = ~ 0.5) in both SOP and SLP assays. Our results reveal toluene's potential to increase hydrocarbon availability and microbial degradation efficiency in aged contaminated soils; its use in various bioremediation techniques could be of broad applicability across diverse soil types and pollutants.
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Affiliation(s)
- M E Maya-Yescas
- Universidad Autónoma Metropolitana-Cuajimalpa, Vasco de Quiroga 4871, Cuajimalpa, 05348, Mexico City, Mexico
| | - M Gutiérrez-Rojas
- Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco No. 186, 09340, Mexico City, Mexico
| | - M García-Rivero
- División de Ingeniería Química y Bioquímica, Tecnológico Nacional de México/Tecnológico de Estudios Superiores de Ecatepec,, Av. Tecnológico S/N, 55210, Ecatepec de Morelos, Edo. de Mexico, Mexico.
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Guo KH, Chen PH, Lin C, Chen CF, Lee IR, Yeh YC. Determination of Gold Ions in Human Urine Using Genetically Engineered Microorganisms on a Paper Device. ACS Sens 2018; 3:744-748. [PMID: 29589435 DOI: 10.1021/acssensors.7b00931] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This paper presents a whole-cell biosensor that operates in conjunction with a smartphone-based fluorescence diagnostic system on a paper device to monitor the concentration of gold ions in human urine. The heavy metal-tolerant bacteria Cupriavidus metallidurans was genetically engineered for use as a chassis in a red fluorescent protein (RFP)-based microbial sensor. The biosensor is highly sensitive to gold ions, with a detection limit of 110 nM. The proposed smartphone-based analysis system provides a user-friendly approach to design tools of personal health monitoring for reporting the presence of gold ions in human urine.
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Affiliation(s)
- Kai-Hong Guo
- Department of Chemistry , National Taiwan Normal University , Taipei 116 , Taiwan
| | - Pei-Hsuan Chen
- Department of Chemistry , National Taiwan Normal University , Taipei 116 , Taiwan
| | - Chieh Lin
- Department of Chemistry , National Taiwan Normal University , Taipei 116 , Taiwan
| | - Chien-Fu Chen
- Institute of Applied Mechanics , National Taiwan University , Taipei 106 , Taiwan
| | - I-Ren Lee
- Department of Chemistry , National Taiwan Normal University , Taipei 116 , Taiwan
| | - Yi-Chun Yeh
- Department of Chemistry , National Taiwan Normal University , Taipei 116 , Taiwan
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Sun Y, Zhao X, Zhang D, Ding A, Chen C, Huang WE, Zhang H. New naphthalene whole-cell bioreporter for measuring and assessing naphthalene in polycyclic aromatic hydrocarbons contaminated site. CHEMOSPHERE 2017; 186:510-518. [PMID: 28810221 DOI: 10.1016/j.chemosphere.2017.08.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 07/22/2017] [Accepted: 08/07/2017] [Indexed: 06/07/2023]
Abstract
A new naphthalene bioreporter was designed and constructed in this work. A new vector, pWH1274_Nah, was constructed by the Gibson isothermal assembly fused with a 9 kb naphthalene-degrading gene nahAD (nahAa nahAb nahAc nahAd nahB nahF nahC nahQ nahE nahD) and cloned into Acinetobacter ADPWH_lux as the host, capable of responding to salicylate (the central metabolite of naphthalene). The ADPWH_Nah bioreporter could effectively metabolize naphthalene and evaluate the naphthalene in natural water and soil samples. This whole-cell bioreporter did not respond to other polycyclic aromatic hydrocarbons (PAHs; pyrene, anthracene, and phenanthrene) and demonstrated a positive response in the presence of 0.01 μM naphthalene, showing high specificity and sensitivity. The bioluminescent response was quantitatively measured after a 4 h exposure to naphthalene, and the model simulation further proved the naphthalene metabolism dynamics and the salicylate-activation mechanisms. The ADPWH_Nah bioreporter also achieved a rapid evaluation of the naphthalene in the PAH-contaminated site after chemical spill accidents, showing high consistency with chemical analysis. The engineered Acinetobacter variant had significant advantages in rapid naphthalene detection in the laboratory and potential in situ detection. The state-of-the-art concept of cloning PAHs-degrading pathway in salicylate bioreporter hosts led to the construction and assembly of high-throughput PAH bioreporter array, capable of crude oil contamination assessment and risk management.
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Affiliation(s)
- Yujiao Sun
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China
| | - Xiaohui Zhao
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China; Department of Water Environment, China Institute of Water Resources and Hydropower Research, Beijing, 100038, China.
| | - Dayi Zhang
- Lancaster Environment Centre, Lancaster University, Lancaster, LA1 4YQ, UK
| | - Aizhong Ding
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China
| | - Cheng Chen
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China
| | - Wei E Huang
- Kroto Research Institute, University of Sheffield, Sheffield, S3 7HQ, United Kingdom
| | - Huichun Zhang
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China
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Bhaganna P, Bielecka A, Molinari G, Hallsworth JE. Protective role of glycerol against benzene stress: insights from the Pseudomonas putida proteome. Curr Genet 2015; 62:419-29. [PMID: 26612269 DOI: 10.1007/s00294-015-0539-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 11/04/2015] [Accepted: 11/05/2015] [Indexed: 01/09/2023]
Abstract
Chemical activities of hydrophobic substances can determine the windows of environmental conditions over which microbial systems function and the metabolic inhibition of microorganisms by benzene and other hydrophobes can, paradoxically, be reduced by compounds that protect against cellular water stress (Bhaganna et al. in Microb Biotechnol 3:701-716, 2010; Cray et al. in Curr Opin Biotechnol 33:228-259, 2015a). We hypothesized that this protective effect operates at the macromolecule structure-function level and is facilitated, in part at least, by genome-mediated adaptations. Based on proteome profiling of the soil bacterium Pseudomonas putida, we present evidence that (1) benzene induces a chaotrope-stress response, whereas (2) cells cultured in media supplemented with benzene plus glycerol were protected against chaotrope stress. Chaotrope-stress response proteins, such as those involved in lipid and compatible-solute metabolism and removal of reactive oxygen species, were increased by up to 15-fold in benzene-stressed cells relative to those of control cultures (no benzene added). By contrast, cells grown in the presence of benzene + glycerol, even though the latter grew more slowly, exhibited only a weak chaotrope-stress response. These findings provide evidence to support the hypothesis that hydrophobic substances induce a chaotropicity-mediated water stress, that cells respond via genome-mediated adaptations, and that glycerol protects the cell's macromolecular systems. We discuss the possibility of using compatible solutes to mitigate hydrocarbon-induced stresses in lignocellulosic biofuel fermentations and for industrial and environmental applications.
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Affiliation(s)
- Prashanth Bhaganna
- MBC, School of Biological Sciences, Institute for Global Food Security, Queen's University Belfast, Belfast, BT9 7BL, Northern Ireland, UK
| | - Agata Bielecka
- Environmental Microbiology Laboratory, Helmholtz Centre for Infection Research, D-38124, Braunschweig, Germany
- Molecular Biology Department, Helmholtz Centre for Infection Research, D-38124, Braunschweig, Germany
| | - Gabriella Molinari
- Environmental Microbiology Laboratory, Helmholtz Centre for Infection Research, D-38124, Braunschweig, Germany
- Central Facility for Microscopy, Helmholtz Centre for Infection Research, D-38124, Braunschweig, Germany
| | - John E Hallsworth
- MBC, School of Biological Sciences, Institute for Global Food Security, Queen's University Belfast, Belfast, BT9 7BL, Northern Ireland, UK.
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Song Y, Jiang B, Tian S, Tang H, Liu Z, Li C, Jia J, Huang WE, Zhang X, Li G. A whole-cell bioreporter approach for the genotoxicity assessment of bioavailability of toxic compounds in contaminated soil in China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2014; 195:178-184. [PMID: 25243386 DOI: 10.1016/j.envpol.2014.08.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 08/22/2014] [Accepted: 08/25/2014] [Indexed: 06/03/2023]
Abstract
A whole-cell bacterial bioreporter Acinetobacter baylyi strain ADP1_recA_lux that responds to genotoxins was employed to directly assess the adverse effects of the bioavailable fraction of mitomycin C (MMC), benzo[a]pyrene (BaP), chromium (VI) and lead (II) in amended soils and soil samples from two fragile areas in China without soil pre-treatment. The amended soils containing pollutants with the concentrations as low as 0.4 mg/kg MMC, 0.5 mg/kg BaP, 520 mg/kg Cr (VI) and 2072 mg/kg Pb (II) were found to be toxic. Soil particle-associated pollutants accounted for 86%, 100%, 29%, and 92% of the genotoxicity in the MMC, BaP, Cr (VI), and Pb (II) amended soil, respectively. The soils from contaminated sites were also valid to be genotoxic. The results suggest both free and soil particle-associated pollutants are bioavailable to soil organisms and a solid-phase contact bioreporter assay to soil contamination could provide a rapid screening tool for environmental risk assessment.
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Affiliation(s)
- Yizhi Song
- School of Environment, Tsinghua University, Beijing, 100084, PR China; State Key Joint Laboratory of Environment Simulation and Pollution Control, Beijing, 100084, PR China
| | - Bo Jiang
- School of Environment, Tsinghua University, Beijing, 100084, PR China; State Key Joint Laboratory of Environment Simulation and Pollution Control, Beijing, 100084, PR China
| | - Sicong Tian
- School of Environment, Tsinghua University, Beijing, 100084, PR China
| | - Hui Tang
- School of Chemical and Environmental Engineering, China University of Mining & Technology, Beijing, 100083, PR China
| | - Zengjun Liu
- School of Environment, Tsinghua University, Beijing, 100084, PR China; State Key Joint Laboratory of Environment Simulation and Pollution Control, Beijing, 100084, PR China
| | - Chuan Li
- School of Environment, Tsinghua University, Beijing, 100084, PR China; State Key Joint Laboratory of Environment Simulation and Pollution Control, Beijing, 100084, PR China
| | - Jianli Jia
- School of Chemical and Environmental Engineering, China University of Mining & Technology, Beijing, 100083, PR China
| | - Wei E Huang
- Kroto Research Institute, University of Sheffield, Sheffield, S3 7HQ, UK
| | - Xu Zhang
- School of Environment, Tsinghua University, Beijing, 100084, PR China; State Key Joint Laboratory of Environment Simulation and Pollution Control, Beijing, 100084, PR China
| | - Guanghe Li
- School of Environment, Tsinghua University, Beijing, 100084, PR China; State Key Joint Laboratory of Environment Simulation and Pollution Control, Beijing, 100084, PR China.
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Environmental applications of photoluminescence-based biosensors. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2014. [PMID: 19475374 DOI: 10.1007/10_2008_51] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register]
Abstract
For monitoring and treatment of soil and water, environmental scientists and engineers require measurements of the concentration of chemical contaminants. Although laboratory-based methods relying on gas or liquid chromatography can yield very accurate measurements, they are also complex, time consuming, expensive, and require sample pretreatment. Furthermore, they are not readily adapted for in situ measurements.Sensors are devices that can provide continuous, in situ measurements, ideally without the addition of reagents. A biosensor incorporates a biological component coupled to a transducer, which translates the interaction between the analyte and the biocomponent into a signal that can be processed and reported. A wide range of transducers have been employed in biosensors, the most common of which are electrochemical and optical. In this contribution, we focus on photoluminescence-based biosensors of potential use in the applications described above.Following a review of photoluminescence and a discussion of the optoelectronic hardware part of these biosensor systems, we provide explanations and examples of optical biosensors for specific chemical groups: hydrocarbons and alcohols, halogenated organics, nitro-, phospho-, sulfo-, and other substituted organics, and metals and other inorganics. We also describe approaches that have been taken to describe chemical mixtures as a whole (biological oxygen demand and toxicity) since most environmental samples contain mixtures of unknown (and changing) composition. Finally, we end with some thoughts on future research directions that are necessary to achieve the full potential of environmental biosensors.
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Lacal J, Reyes-Darias JA, García-Fontana C, Ramos JL, Krell T. Tactic responses to pollutants and their potential to increase biodegradation efficiency. J Appl Microbiol 2012; 114:923-33. [PMID: 23163356 DOI: 10.1111/jam.12076] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Revised: 11/07/2012] [Accepted: 11/11/2012] [Indexed: 11/26/2022]
Abstract
A significant number of bacterial strains are able to use toxic aromatic hydrocarbons as carbon and energy sources. In a number of cases, the evolution of the corresponding degradation pathway was accompanied by the evolution of tactic behaviours either towards or away from these toxic carbon sources. Reports are reviewed which show that a chemoattraction to heterogeneously distributed aromatic pollutants increases the bioavailability of these compounds and their biodegradation efficiency. An extreme form of chemoattraction towards aromatic pollutants, termed 'hyperchemotaxis', was described for Pseudomonas putida DOT-T1E, which is based on the action of the plasmid-encoded McpT chemoreceptor. Cells with this phenotype were found of being able to approach and of establishing contact with undiluted crude oil samples. Although close McpT homologues are found on other degradation plasmids, the sequence of their ligand-binding domains does not share significant similarity with that of NahY, the other characterized chemoreceptor for aromatic hydrocarbons. This may suggest the existence of at least two families of chemoreceptors for aromatic pollutants. The use of receptor chimers comprising the ligand-binding region of McpT for biosensing purposes is discussed.
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Affiliation(s)
- J Lacal
- Department of Environmental Protection, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, Granada, Spain
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Bioavailability of organic compounds solubilized in nonionic surfactant micelles. Appl Microbiol Biotechnol 2010; 89:523-34. [DOI: 10.1007/s00253-010-2938-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2010] [Revised: 10/01/2010] [Accepted: 10/01/2010] [Indexed: 11/24/2022]
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Bhaganna P, Volkers RJM, Bell ANW, Kluge K, Timson DJ, McGrath JW, Ruijssenaars HJ, Hallsworth JE. Hydrophobic substances induce water stress in microbial cells. Microb Biotechnol 2010; 3:701-16. [PMID: 21255365 PMCID: PMC3815343 DOI: 10.1111/j.1751-7915.2010.00203.x] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Ubiquitous noxious hydrophobic substances, such as hydrocarbons, pesticides and diverse industrial chemicals, stress biological systems and thereby affect their ability to mediate biosphere functions like element and energy cycling vital to biosphere health. Such chemically diverse compounds may have distinct toxic activities for cellular systems; they may also share a common mechanism of stress induction mediated by their hydrophobicity. We hypothesized that the stressful effects of, and cellular adaptations to, hydrophobic stressors operate at the level of water : macromolecule interactions. Here, we present evidence that: (i) hydrocarbons reduce structural interactions within and between cellular macromolecules, (ii) organic compatible solutes – metabolites that protect against osmotic and chaotrope‐induced stresses – ameliorate this effect, (iii) toxic hydrophobic substances induce a potent form of water stress in macromolecular and cellular systems, and (iv) the stress mechanism of, and cellular responses to, hydrophobic substances are remarkably similar to those associated with chaotrope‐induced water stress. These findings suggest that it may be possible to devise new interventions for microbial processes in both natural environments and industrial reactors to expand microbial tolerance of hydrophobic substances, and hence the biotic windows for such processes.
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Affiliation(s)
- Prashanth Bhaganna
- Department of Biological Sciences, University of Essex, Colchester CO4 3SQ, UK
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Wang Z, Dai Z. Extractive microbial fermentation in cloud point system. Enzyme Microb Technol 2010; 46:407-18. [DOI: 10.1016/j.enzmictec.2010.02.004] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2009] [Accepted: 02/07/2010] [Indexed: 10/19/2022]
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Liu X, Germaine KJ, Ryan D, Dowling DN. Whole-cell fluorescent biosensors for bioavailability and biodegradation of polychlorinated biphenyls. SENSORS 2010; 10:1377-98. [PMID: 22205873 PMCID: PMC3244019 DOI: 10.3390/s100201377] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2009] [Revised: 01/14/2010] [Accepted: 01/29/2010] [Indexed: 11/30/2022]
Abstract
Whole-cell microbial biosensors are one of the newest molecular tools used in environmental monitoring. Such biosensors are constructed through fusing a reporter gene such as lux, gfp or lacZ, to a responsive promoter. There have been many reports of the applications of biosensors, particularly their use in assaying pollutant toxicity and bioavailability. This paper reviews the basic concepts behind the construction of whole-cell microbial biosensors for pollutant monitoring, and describes the applications of two such biosensors for detecting the bioavailability and biodegradation of Polychlorinated Biphenyls (PCBs).
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Affiliation(s)
- Xuemei Liu
- Department of Science and Health, Institute of Technology Carlow, Kilkenny Road, Carlow, Ireland.
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