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Banerjee S, Gupta N, Pramanik K, Gope M, GhoshThakur R, Karmakar A, Gogoi N, Hoque RR, Mandal NC, Balachandran S. Microbes and microbial strategies in carcinogenic polycyclic aromatic hydrocarbons remediation: a systematic review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:1811-1840. [PMID: 38063960 DOI: 10.1007/s11356-023-31140-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 11/16/2023] [Indexed: 01/18/2024]
Abstract
Degradation, detoxification, or removal of the omnipresent polycyclic aromatic hydrocarbons (PAHs) from the ecosphere as well as their prevention from entering into food chain has never appeared simple. In this context, cost-effective, eco-friendly, and sustainable solutions like microbe-mediated strategies have been adopted worldwide. With this connection, measures have been taken by multifarious modes of microbial remedial strategies, i.e., enzymatic degradation, biofilm and biosurfactant production, application of biochar-immobilized microbes, lactic acid bacteria, rhizospheric-phyllospheric-endophytic microorganisms, genetically engineered microorganisms, and bioelectrochemical techniques like microbial fuel cell. In this review, a nine-way directional approach which is based on the microbial resources reported over the last couple of decades has been described. Fungi were found to be the most dominant taxa among the CPAH-degrading microbial community constituting 52.2%, while bacteria, algae, and yeasts occupied 37.4%, 9.1%, and 1.3%, respectively. In addition to these, category-wise CPAH degrading efficiencies of each microbial taxon, consortium-based applications, CPAH degradation-related molecular tools, and factors affecting CPAH degradation are the other important aspects of this review in light of their appropriate selection and application in the PAH-contaminated environment for better human-health management in order to achieve a sustainable ecosystem.
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Affiliation(s)
- Sandipan Banerjee
- Mycology and Plant Pathology Laboratory, Department of Botany, Visva-Bharati, Santiniketan, 731235, West Bengal, India
| | - Nitu Gupta
- Department of Environmental Science, Tezpur University, Napaam, Tezpur, Assam, 784028, India
| | - Krishnendu Pramanik
- Microbiology and Microbial Bioinformatics Laboratory, Department of Botany, Cooch Behar Panchanan Barma University, Panchanan Nagar, Vivekananda Street, Cooch Behar, 736101, West Bengal, India
| | - Manash Gope
- Department of Environmental Science, The University of Burdwan, Golapbag, 713104, West Bengal, India
| | - Richik GhoshThakur
- Department of Environmental Studies, Visva-Bharati, Santiniketan, 731235, West Bengal, India
| | - Animesh Karmakar
- Department of Chemistry, Visva-Bharati, Santiniketan, 731235, West Bengal, India
| | - Nayanmoni Gogoi
- Department of Environmental Science, Tezpur University, Napaam, Tezpur, Assam, 784028, India
| | - Raza Rafiqul Hoque
- Department of Environmental Science, Tezpur University, Napaam, Tezpur, Assam, 784028, India
| | - Narayan Chandra Mandal
- Mycology and Plant Pathology Laboratory, Department of Botany, Visva-Bharati, Santiniketan, 731235, West Bengal, India
| | - Srinivasan Balachandran
- Department of Environmental Studies, Visva-Bharati, Santiniketan, 731235, West Bengal, India.
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Vivier B, Faucheux-Bourlot C, Orvain F, Chasselin L, Jolly O, Navon M, Boutouil M, Goux D, Dauvin JC, Claquin P. Influence of nutrient enrichment on colonisation and photosynthetic parameters of hard substrate marine microphytobenthos. BIOFOULING 2023; 39:730-747. [PMID: 37781891 DOI: 10.1080/08927014.2023.2261852] [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: 04/27/2023] [Accepted: 09/17/2023] [Indexed: 10/03/2023]
Abstract
This study aimed to assess the influence of nutrient enrichment on the development of microalgal biofilm on concrete and PVC cubes. Three mesocosms were utilized to create a nutrient gradient over a period of 28 days. Various parameters including biomass, photosynthetic activity, microtopography, and extracellular polymeric substances (EPS) were measured. Imaging PAM techniques were employed to obtain surface-wide data. Results revealed that nutrient availability had no significant impact on Chl a biomass and the maximum quantum efficiency of PSII (F v /F m ). The photosynthetic capacity and efficiency were minimally affected by nutrient availability. Interestingly, the relationship between microphytobenthic (MPB) biomass and photosynthesis and surface rugosity exhibited distinct patterns. Negative reliefs showed a strong correlation with F v /F m , while no clear pattern emerged for biomass on rough concrete structures. Overall, our findings demonstrate that under conditions of heightened eutrophication, biofilm photosynthesis thrives in the fissures and crevasses of colonized structures regardless of nutrient levels. This investigation provides valuable insights into the interplay between nutrient availability and surface rugosity.
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Affiliation(s)
- Baptiste Vivier
- Normandie Université, Université de Caen Normandie, Caen, France
- Laboratoire Biologie des ORganismes et Ecosystèmes Aquatiques (BOREA, UMR CNRS 8067), Muséum National d'Histoire Naturelle, Sorbonne Université, Université de Caen Normandie, IRD 207, Université des Antilles. Centre de Recherches en Environnement Côtier (CREC) - Station Marine, Luc-sur-Mer, France
- HOLCIM Innovation Center, 95 rue du Montmurier, 38070 Saint-Quentin-Fallavier, France
| | - Caroline Faucheux-Bourlot
- Laboratoire Biologie des ORganismes et Ecosystèmes Aquatiques (BOREA, UMR CNRS 8067), Muséum National d'Histoire Naturelle, Sorbonne Université, Université de Caen Normandie, IRD 207, Université des Antilles. Centre de Recherches en Environnement Côtier (CREC) - Station Marine, Luc-sur-Mer, France
| | - Francis Orvain
- Normandie Université, Université de Caen Normandie, Caen, France
- Laboratoire Biologie des ORganismes et Ecosystèmes Aquatiques (BOREA, UMR CNRS 8067), Muséum National d'Histoire Naturelle, Sorbonne Université, Université de Caen Normandie, IRD 207, Université des Antilles. Centre de Recherches en Environnement Côtier (CREC) - Station Marine, Luc-sur-Mer, France
| | - Léo Chasselin
- Normandie Université, Université de Caen Normandie, Caen, France
| | - Orianne Jolly
- Normandie Université, Université de Caen Normandie, Caen, France
| | - Maxime Navon
- Normandie Université, Université de Caen Normandie, Caen, France
- Laboratoire Biologie des ORganismes et Ecosystèmes Aquatiques (BOREA, UMR CNRS 8067), Muséum National d'Histoire Naturelle, Sorbonne Université, Université de Caen Normandie, IRD 207, Université des Antilles. Centre de Recherches en Environnement Côtier (CREC) - Station Marine, Luc-sur-Mer, France
| | | | - Didier Goux
- Centre de Microscopie Appliquée à la Biologie, SF 4206 Interaction Cellule-Organisme-Environnement (ICORE), UNICAEN; and CRISMAT, Normandie Univ, ENSICAEN, UNICAEN, CNRS, CRISMAT, Caen, France
| | - Jean-Claude Dauvin
- Laboratoire Morphodynamique Continentale et Côtière, UMR CNRS 6143 M2C, Normandie Université, Université de Caen Normandie, UNIROUEN, Caen, France
| | - Pascal Claquin
- Normandie Université, Université de Caen Normandie, Caen, France
- Laboratoire Biologie des ORganismes et Ecosystèmes Aquatiques (BOREA, UMR CNRS 8067), Muséum National d'Histoire Naturelle, Sorbonne Université, Université de Caen Normandie, IRD 207, Université des Antilles. Centre de Recherches en Environnement Côtier (CREC) - Station Marine, Luc-sur-Mer, France
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Gildebrant AV, Sazykin IS, Sazykina MA. Formation of Biofilms by Natural Microbial Strains in the Presence of Naphtalene and Anthracene. APPL BIOCHEM MICRO+ 2022. [DOI: 10.1134/s0003683822090137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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4
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Saygin H, Baysal A. Interaction of nanoplastics with simulated biological fluids and their effect on the biofilm formation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:80775-80786. [PMID: 35727518 DOI: 10.1007/s11356-022-21468-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
Over the last decade, it has become clear that the pollution by plastic debris presents global societal, environmental, and human health challenges. Moreover, humans are exposed to plastic particles in daily life and very limited information is available concerning human health, especially interactions with biological fluids. Therefore, the aim of this study is to investigate the interaction of plastic particles with simulated biological fluids (e.g., artificial saliva, artificial lysosomal fluid, phagolysosomal simulant fluid, and Gamble's solution) using various exposure stages (2 h to 80 h) and the effect of plastic particles on the formation of Staphylococcus aureus biofilms under simulated biological conditions. The plastic particles incubating various simulated biological fluids were characterized using surface functional groups, zeta potentials, and elemental composition. The results indicated that functional group indices (C-O, C = O, C-H, C = C, C-N, S = O, and OH) decreased compared to the control group during the incubation periods, except for the hydroxyl group index. The FTIR results showed that the hydroxyl group formed with the artificial lysosomal fluid, the phagolysosomal simulant fluid, and Gamble's solution. With the impact of the declining functional groups, the zeta potentials were more negative than in the control. Moreover, EDX results showed the release of the components in the particles with the interaction of simulated biological fluids as well as new components like P and Ca introduced to the particles. The biofilms were formed in the presence of nanoplastic particles under both controlled conditions and simulated biological conditions. The amount of biofilm formation was mainly affected by the surface characteristics under simulated biological conditions. In addition, the biofilm characteristics were influenced by the O/C and N/C ratios of the plastic particles with the impact of simulated biological fluids.
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Affiliation(s)
- Hasan Saygin
- Application and Research Center for Advanced Studies, T. C. Istanbul Aydin University, Sefakoy Kucukcekmece, 34295, Istanbul, Turkey
| | - Asli Baysal
- Health Services Vocational School of Higher Education, T. C. Istanbul Aydin University, Sefakoy Kucukcekmece, 34295, Istanbul, Turkey.
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Bourguignon N, Alessandrello M, Booth R, Lobo CB, Juárez Tomás MS, Cumbal L, Perez M, Bhansali S, Ferrero M, Lerner B. Bioremediation on a chip: A portable microfluidic device for efficient screening of bacterial biofilm with polycyclic aromatic hydrocarbon removal capacity. CHEMOSPHERE 2022; 303:135001. [PMID: 35605730 DOI: 10.1016/j.chemosphere.2022.135001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 04/11/2022] [Accepted: 05/14/2022] [Indexed: 06/15/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are pollutants of critical environmental and public health concern and their elimination from contaminated sites is significant for the environment. Biodegradation studies have demonstrated the ability of bacteria in biofilm conformation to enhance the biodegradation of pollutants. In this study, we used our newly developed microfluidic platform to explore biofilm development, properties, and applications of fluid flow, as a new technique for screening PAHs-degrading biofilms. The optimization and evaluation of the flow condition in the microchannels were performed through computational fluid dynamics (CFD). The formation of biofilms by PAHs-degrading bacteria Pseudomonas sp. P26 and Gordonia sp. H19, as pure cultures and co-culture, was obtained in the developed microchips. The removal efficiencies of acenaphthene, fluoranthene and pyrene were determined by HPLC. All the biofilms formed in the microchips removed all tested PAHs, with the higher removal percentages observed with the Pseudomonas sp. P26 biofilm (57.4% of acenaphthene, 40.9% of fluoranthene, and 28.9% of pyrene). Pseudomonas sp. P26 biofilm removed these compounds more efficiently than planktonic cultures. This work proved that the conformation of biofilms enhances the removal rate. It also provided a new tool to rapid and low-cost screen for effective pollutant-degrading biofilms.
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Affiliation(s)
- Natalia Bourguignon
- IREN Center, National Technological University, Buenos Aires, 1706, Argentina; Department of Electrical and Computer Engineering, Florida International University, Miami, FL, 33174, USA
| | - Mauricio Alessandrello
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI, CONICET), Tucumán, Argentina
| | - Ross Booth
- Roche Sequencing Solutions, Inc., 4300 Hacienda Dr, Pleasanton, CA, 94588, USA
| | - Constanza Belén Lobo
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI, CONICET), Tucumán, Argentina
| | | | - Luis Cumbal
- Centro de Nanociencia y Nanotecnologia, Universidad de Las Fuerzas Armadas ESPE, Av. Gral. Rumiñahui s/n, Sangolqui, P.O. BOX 171-5-231B, Ecuador
| | - Maximiliano Perez
- IREN Center, National Technological University, Buenos Aires, 1706, Argentina; Department of Electrical and Computer Engineering, Florida International University, Miami, FL, 33174, USA
| | - Shekhar Bhansali
- Department of Electrical and Computer Engineering, Florida International University, Miami, FL, 33174, USA
| | - Marcela Ferrero
- YPF Tecnologia, Av. del Petróleo Argentino, 900-1198, Berisso, Buenos Aires, Argentina.
| | - Betiana Lerner
- IREN Center, National Technological University, Buenos Aires, 1706, Argentina; Department of Electrical and Computer Engineering, Florida International University, Miami, FL, 33174, USA.
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Sahreen S, Mukhtar H, Imre K, Morar A, Herman V, Sharif S. Exploring the Function of Quorum Sensing Regulated Biofilms in Biological Wastewater Treatment: A Review. Int J Mol Sci 2022; 23:ijms23179751. [PMID: 36077148 PMCID: PMC9456111 DOI: 10.3390/ijms23179751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 08/21/2022] [Accepted: 08/26/2022] [Indexed: 11/26/2022] Open
Abstract
Quorum sensing (QS), a type of bacterial cell–cell communication, produces autoinducers which help in biofilm formation in response to cell population density. In this review, biofilm formation, the role of QS in biofilm formation and development with reference to biological wastewater treatment are discussed. Autoinducers, for example, acyl-homoserine lactones (AHLs), auto-inducing oligo-peptides (AIPs) and autoinducer 2, present in both Gram-negative and Gram-positive bacteria, with their mechanism, are also explained. Over the years, wastewater treatment (WWT) by QS-regulated biofilms and their optimization for WWT have gained much attention. This article gives a comprehensive review of QS regulation methods, QS enrichment methods and QS inhibition methods in biological waste treatment systems. Typical QS enrichment methods comprise adding QS molecules, adding QS accelerants and cultivating QS bacteria, while typical QS inhibition methods consist of additions of quorum quenching (QQ) bacteria, QS-degrading enzymes, QS-degrading oxidants, and QS inhibitors. Potential applications of QS regulated biofilms for WWT have also been summarized. At last, the knowledge gaps present in current researches are analyzed, and future study requirements are proposed.
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Affiliation(s)
- Sania Sahreen
- Institute of Industrial Biotechnology, Government College University, Lahore 54000, Pakistan
| | - Hamid Mukhtar
- Institute of Industrial Biotechnology, Government College University, Lahore 54000, Pakistan
- Correspondence: (H.M.); (K.I.); Tel.: +92-3334245581 (H.M.); +40-256277186 (K.I.)
| | - Kálmán Imre
- Department of Animal Production and Veterinary Public Health, Faculty of Veterinary Medicine, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania”, 300645 Timisoara, Romania
- Correspondence: (H.M.); (K.I.); Tel.: +92-3334245581 (H.M.); +40-256277186 (K.I.)
| | - Adriana Morar
- Department of Animal Production and Veterinary Public Health, Faculty of Veterinary Medicine, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania”, 300645 Timisoara, Romania
| | - Viorel Herman
- Department of Infectious Diseases and Preventive Medicine, Faculty of Veterinary Medicine, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania”, 300645 Timisoara, Romania
| | - Sundas Sharif
- Institute of Industrial Biotechnology, Government College University, Lahore 54000, Pakistan
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Wang J, Yang Z, Zhou X, Waigi MG, Gudda FO, Odinga ES, Mosa A, Ling W. Nitrogen addition enhanced the polycyclic aromatic hydrocarbons dissipation through increasing the abundance of related degrading genes in the soils. JOURNAL OF HAZARDOUS MATERIALS 2022; 435:129034. [PMID: 35525013 DOI: 10.1016/j.jhazmat.2022.129034] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 06/14/2023]
Abstract
High concentrations of Polycyclic Aromatic Hydrocarbons (PAHs) in the soils cause significant threats to human health. Since nitrogen plays a crucial role in controlling microbial composition and functions in terrestrial ecosystems, bio-stimulation based on nitrogen has been used in PAHs contaminated environments remediation. Recent studies show that microbial community composition and organic pollutants dissipation correlate with nitrogen addition. Here, we investigated the effect of nitrogen addition on the abundance of microbial community, degrading genes, and their relationship to PAHs dissipation. After a 32-day experiment, PAHs residues in nitrogen treatment soil were reduced by 23.23%-34.21%. The application of 80 mg·kg-1 nitrate and ammonium nitrogen resulted in higher PAHs removal efficiency, and the dissipation rate of PAHs was 59.61% and 62.09%, respectively. Nitrogen application could improve the abundance and the diversity of soil microbial community. Degrading genes involved in PAH detoxification were enhanced after nitrogen addition, particularly those encoding ring-hydroxylating and catechol dioxygenases such as nahAc and nidA, thus, accelerating PAH dissipation in the soil. The results will facilitate the development of beneficial microbiome-based remediation strategies and improve agricultural production safety in PAHs-contaminated soils.
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Affiliation(s)
- Jian Wang
- Institute of Organic Contaminant Control and Soil Remediation, College of Resource and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Zhiyao Yang
- Institute of Organic Contaminant Control and Soil Remediation, College of Resource and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Xian Zhou
- Institute of Organic Contaminant Control and Soil Remediation, College of Resource and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Michael Gatheru Waigi
- Institute of Organic Contaminant Control and Soil Remediation, College of Resource and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Fredrick Owino Gudda
- Institute of Organic Contaminant Control and Soil Remediation, College of Resource and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Emmanuel Stephen Odinga
- Institute of Organic Contaminant Control and Soil Remediation, College of Resource and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Ahmed Mosa
- Soils Department, Faculty of Agriculture, Mansoura University, 35516 Mansoura, Egypt
| | - Wanting Ling
- Institute of Organic Contaminant Control and Soil Remediation, College of Resource and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, PR China.
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Wu CC, Connell M, Zarb A, Akemann C, Morgan S, McElmurry SP, Love NG, Baker TR. Point-of-use carbon-block drinking water filters change gut microbiome of larval zebrafish. ENVIRONMENTAL MICROBIOLOGY REPORTS 2022; 14:655-663. [PMID: 35521795 PMCID: PMC11106719 DOI: 10.1111/1758-2229.13077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 03/09/2022] [Accepted: 04/20/2022] [Indexed: 06/14/2023]
Abstract
Activated carbon block (ACB) point-of-use (PoU) drinking water filters can change the bacterial composition in drinking water. Consuming ACB PoU filtered water may also influence gut microbiomes. This study uses the zebrafish model to evaluate how the ACB PoU filter affects the gut microbiomes and phenotypic responses in larvae and adulthood. An ACB PoU filter manifold system was constructed to feed larval and adult zebrafish tap and filtered water at the early and late stages of the filter operation period. Adult zebrafish gut microbiomes were not affected by exposure to water types and filter stages. Unlike the adult, gut microbiomes of the larvae exposed to filtered water at the late stage of filter operation were dominated by more filter-relevant bacterial taxa, including Comamonadaceae and Brevundimonas, than the early stage-filtered-water- and tap water-exposed larvae. We also found some fish that were either exposed to filtered water at early and late stages or tap water supplied to the filter toward the end of the experiment showed hyperactive locomotion behaviour, and had significantly lower relative abundances of a Pseudomonas spp. (OTU3) than the normally behaved fish. Our findings indicate that ACB PoU filtered water can alter gut microbiomes and affect the behaviour patterns in larval zebrafish.
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Affiliation(s)
- Chia-Chen Wu
- Department of Environmental and Global Health, University of Florida, Gainesville, FL
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI
| | - Mackenzie Connell
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI
| | - Audrey Zarb
- Department of Civil and Environmental Engineering, Wayne State University, Detroit, MI
| | - Camille Akemann
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI
- Department of Pharmacology, Wayne State University, Detroit, MI
| | - Stephanie Morgan
- Department of Civil and Environmental Engineering, Wayne State University, Detroit, MI
| | - Shawn P. McElmurry
- Department of Civil and Environmental Engineering, Wayne State University, Detroit, MI
| | - Nancy G. Love
- Department of Civil and Environmental Engineering, University of Michigan, Ann Arbor, MI
| | - Tracie R. Baker
- Department of Environmental and Global Health, University of Florida, Gainesville, FL
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI
- Department of Pharmacology, Wayne State University, Detroit, MI
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Roy AS, Sharma A, Thapa BS, Pandit S, Lahiri D, Nag M, Sarkar T, Pati S, Ray RR, Shariati MA, Wilairatana P, Mubarak MS. Microbiomics for enhancing electron transfer in an electrochemical system. Front Microbiol 2022; 13:868220. [PMID: 35966693 PMCID: PMC9372394 DOI: 10.3389/fmicb.2022.868220] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 06/27/2022] [Indexed: 11/13/2022] Open
Abstract
In microbial electrochemical systems, microorganisms catalyze chemical reactions converting chemical energy present in organic and inorganic molecules into electrical energy. The concept of microbial electrochemistry has been gaining tremendous attention for the past two decades, mainly due to its numerous applications. This technology offers a wide range of applications in areas such as the environment, industries, and sensors. The biocatalysts governing the reactions could be cell secretion, cell component, or a whole cell. The electroactive bacteria can interact with insoluble materials such as electrodes for exchanging electrons through colonization and biofilm formation. Though biofilm formation is one of the major modes for extracellular electron transfer with the electrode, there are other few mechanisms through which the process can occur. Apart from biofilm formation electron exchange can take place through flavins, cytochromes, cell surface appendages, and other metabolites. The present article targets the various mechanisms of electron exchange for microbiome-induced electron transfer activity, proteins, and secretory molecules involved in the electron transfer. This review also focuses on various proteomics and genetics strategies implemented and developed to enhance the exo-electron transfer process in electroactive bacteria. Recent progress and reports on synthetic biology and genetic engineering in exploring the direct and indirect electron transfer phenomenon have also been emphasized.
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Affiliation(s)
- Ayush Singha Roy
- Amity Institute of Biotechnology, Amity University, Mumbai, Maharashtra, India
| | - Aparna Sharma
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, India
| | - Bhim Sen Thapa
- Department of Biological Sciences, WEHR Life Sciences, Marquette University, Milwaukee, WI, United States
| | - Soumya Pandit
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, India
- *Correspondence: Soumya Pandit,
| | - Dibyajit Lahiri
- Department of Biotechnology, University of Engineering and Management, Kolkata, WB, India
| | - Moupriya Nag
- Department of Biotechnology, University of Engineering and Management, Kolkata, WB, India
| | - Tanmay Sarkar
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, Haringhata, WB, India
| | - Siddhartha Pati
- NatNov Bioscience Private Ltd., Balasore, India
- Association for Biodiversity Conservation and Research Balasore (ABC), Balasore, India
| | - Rina Rani Ray
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, Haringhata, WB, India
| | - Mohammad Ali Shariati
- Department of Scientific Research, K.G. Razumovsky Moscow State University of Technologies and Management (The First Cossack University), Moscow, Russia
| | - Polrat Wilairatana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
- Polrat Wilairatana,
| | - Mohammad S. Mubarak
- Department of Chemistry, The University of Jordan, Amman, Jordan
- Mohammad S. Mubarak,
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Sonawane JM, Rai AK, Sharma M, Tripathi M, Prasad R. Microbial biofilms: Recent advances and progress in environmental bioremediation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 824:153843. [PMID: 35176385 DOI: 10.1016/j.scitotenv.2022.153843] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/15/2022] [Accepted: 02/09/2022] [Indexed: 05/21/2023]
Abstract
Microbial biofilms are formed by adherence of the bacteria through their secreted polymer matrices. The major constituents of the polymer matrices are extracellular DNAs, proteins, polysaccharides. Biofilms have exhibited a promising role in the area of bioremediation. These activities can be further improved by tuning the parameters like quorum sensing, characteristics of the adhesion surface, and other environmental factors. Organic pollutants have created a global concern because of their long-term toxicity on human, marine, and animal life. These contaminants are not easily degradable and continue to prevail in the environment for an extended period. Biofilms are being used for the remediation of different pollutants, among which organic pollutants have been of significance. The bioremediation of organic contaminants using biofilms is an eco-friendly, cheap, and green process. However, the development of this technology demands knowledge on the mechanism of action of the microbes to form the biofilm, types of specific bacteria or fungi responsible for the degradation of a particular organic compound, and the mechanistic role of the biofilm in the degradation of the pollutants. This review puts forth a comprehensive summary of the role of microbial biofilms in the bioremediation of different environment-threatening organic pollutants.
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Affiliation(s)
- Jayesh M Sonawane
- Department of Chemistry, Alexandre-Vachon Pavilion, Laval University, Quebec G1V 0A6, Canada
| | - Ashutosh Kumar Rai
- Department of Biochemistry, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia
| | - Minaxi Sharma
- Department of Applied Biology, University of Science and Technology, Meghalaya, 793101, India
| | - Manikant Tripathi
- Biotechnology Program, Dr. Rammanohar Lohia Avadh University, Ayodhya 224001, Uttar Pradesh, India
| | - Ram Prasad
- Department of Botany, Mahatma Gandhi Central University, Motihari 845401, Bihar, India.
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Shukla SK, Manobala T, Rao TS. The role of S-layer Protein (SlpA) in biofilm-formation of Deinococcus radiodurans. J Appl Microbiol 2022; 133:796-807. [PMID: 35507240 DOI: 10.1111/jam.15613] [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: 02/14/2022] [Revised: 04/29/2022] [Accepted: 04/29/2022] [Indexed: 11/28/2022]
Abstract
AIMS To investigate the molecular basis of biofilm formation in a recombinant lab strain of Deinococcus radiodurans with a plasmid harbouring gfp and kanR that acquired the biofilm-forming ability. METHODS AND RESULTS D. radiodurans R1 is known as a non-biofilm former bacterium and so far there are no reports on its biofilm-producing capabilities. In this study, we investigated the molecular basis of biofilm formation in a recombinant strain of D. radiodurans using classical biofilm assays, confocal laser scanning microscopy, and real-time PCR. Biochemical analysis of D. radiodurans biofilm matrix revealed that it consisted predominantly of protein and carbohydrate complexes with a little amount of extracellular DNA (eDNA). Further, studies showed that D. radiodurans biofilm formation was enhanced in the presence of 25 mM Ca2+ , which enhanced the exopolysaccharide and protein content in the biofilm matrix. Enzymatic treatments with proteinase K, alginate lyase, and DNase I indicated the involvement of some proteinaceous components to be critical in the biofilm formation. RT-PCR studies showed that enhanced expression of a surface layer protein SlpA conferred the biofilm ability to D. radiodurans. CONCLUSION Overexpression of SlpA in D. radiodurans conferred the biofilm formation ability to the bacterium, in which a partial role was also played by the recombinant plasmid pKG. It was also shown that the presence of Ca2+ in the growth medium enhanced SlpA production, thus improving biofilm stability and biofilm maturation of D. radiodurans. SIGNIFICANCE AND IMPACT This study shows how biofilm formation can be augmented in D. radiodurans. The finding has implications for the development of D. radiodurans biofilm-based biotechnological applications.
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Affiliation(s)
- Sudhir K Shukla
- Biofouling & Biofilm Processes Section, Water & Steam Chemistry Division, BARC Facilities, Kalpakkam, 603 102, India.,Homi Bhabha National Institute, Mumbai 400094, India
| | - T Manobala
- Department of Applied Science and Technology, Anna University, Chennai, Tamil Nadu 600 025, India
| | - T Subba Rao
- Biofouling & Biofilm Processes Section, Water & Steam Chemistry Division, BARC Facilities, Kalpakkam, 603 102, India.,Homi Bhabha National Institute, Mumbai 400094, India
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12
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Chattopadhyay I, J RB, Usman TMM, Varjani S. Exploring the role of microbial biofilm for industrial effluents treatment. Bioengineered 2022; 13:6420-6440. [PMID: 35227160 PMCID: PMC8974063 DOI: 10.1080/21655979.2022.2044250] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Biofilm formation on biotic or abiotic surfaces is caused by microbial cells of a single or heterogeneous species. Biofilm protects microbes from stressful environmental conditions, toxic action of chemicals, and antimicrobial substances. Quorum sensing (QS) is the generation of autoinducers (AIs) by bacteria in a biofilm to communicate with one other. QS is responsible for the growth of biofilm, synthesis of exopolysaccharides (EPS), and bioremediation of environmental pollutants. EPS is used for wastewater treatment due to its three-dimensional matrix which is composed of proteins, polysaccharides, humic-like substances, and nucleic acids. Autoinducers mediate significantly the degradation of environmental pollutants. Acyl-homoserine lactone (AHL) producing bacteria as well as quorum quenching enzyme or bacteria can effectively improve the performance of wastewater treatment. Biofilms-based reactors due to their economic and ecofriendly nature are used for the treatment of industrial wastewaters. Electrodes coated with electro-active biofilm (EAB) which are obtained from sewage sludge, activated sludge, or industrial and domestic effluents are getting popularity in bioremediation. Microbial fuel cells are involved in wastewater treatment and production of energy from wastewater. Synthetic biological systems such as genome editing by CRISPR-Cas can be used for the advanced bioremediation process through modification of metabolic pathways in quorum sensing within microbial communities. This narrative review discusses the impacts of QS regulatory approaches on biofilm formation, extracellular polymeric substance synthesis, and role of microbial community in bioremediation of pollutants from industrial effluents.
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Affiliation(s)
| | - Rajesh Banu J
- Department of Life Sciences, Central University of Tamil Nadu, Thiruvarur, India
| | - T M Mohamed Usman
- Department of Civil Engineering, PET Engineering College, Vallioor, Tirunelveli, India
| | - Sunita Varjani
- Paryavaran Bhavan, Gujarat Pollution Control Board, Gandhinagar, India
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Mahto KU, Kumari S, Das S. Unraveling the complex regulatory networks in biofilm formation in bacteria and relevance of biofilms in environmental remediation. Crit Rev Biochem Mol Biol 2021; 57:305-332. [PMID: 34937434 DOI: 10.1080/10409238.2021.2015747] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Biofilms are assemblages of bacteria embedded within a matrix of extracellular polymeric substances (EPS) attached to a substratum. The process of biofilm formation is a complex phenomenon regulated by the intracellular and intercellular signaling systems. Various secondary messenger molecules such as cyclic dimeric guanosine 3',5'-monophosphate (c-di-GMP), cyclic adenosine 3',5'-monophosphate (cAMP), and cyclic dimeric adenosine 3',5'-monophosphate (c-di-AMP) are involved in complex signaling networks to regulate biofilm development in several bacteria. Moreover, the cell to cell communication system known as Quorum Sensing (QS) also regulates biofilm formation via diverse mechanisms in various bacterial species. Bacteria often switch to the biofilm lifestyle in the presence of toxic pollutants to improve their survivability. Bacteria within a biofilm possess several advantages with regard to the degradation of harmful pollutants, such as increased protection within the biofilm to resist the toxic pollutants, synthesis of extracellular polymeric substances (EPS) that helps in the sequestration of pollutants, elevated catabolic gene expression within the biofilm microenvironment, higher cell density possessing a large pool of genetic resources, adhesion ability to a wide range of substrata, and metabolic heterogeneity. Therefore, a comprehensive account of the various factors regulating biofilm development would provide valuable insights to modulate biofilm formation for improved bioremediation practices. This review summarizes the complex regulatory networks that influence biofilm development in bacteria, with a major focus on the applications of bacterial biofilms for environmental restoration.
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Affiliation(s)
- Kumari Uma Mahto
- Department of Life Science, Laboratory of Environmental Microbiology and Ecology (LEnME), National Institute of Technology, Odisha, India
| | - Swetambari Kumari
- Department of Life Science, Laboratory of Environmental Microbiology and Ecology (LEnME), National Institute of Technology, Odisha, India
| | - Surajit Das
- Department of Life Science, Laboratory of Environmental Microbiology and Ecology (LEnME), National Institute of Technology, Odisha, India
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14
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Premnath N, Mohanrasu K, Guru Raj Rao R, Dinesh GH, Prakash GS, Ananthi V, Ponnuchamy K, Muthusamy G, Arun A. A crucial review on polycyclic aromatic Hydrocarbons - Environmental occurrence and strategies for microbial degradation. CHEMOSPHERE 2021; 280:130608. [PMID: 33962296 DOI: 10.1016/j.chemosphere.2021.130608] [Citation(s) in RCA: 112] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/31/2021] [Accepted: 04/12/2021] [Indexed: 05/15/2023]
Abstract
Over the last century, contamination of polycyclic aromatic hydrocarbons (PAHs) has risen tremendously due to the intensified industrial activities like petrochemical, pharmaceutical, insecticides and fertilizers applications. PAHs are a group of organic pollutants with adverse effects on both humans and the environment. These PAHs are widely distributed in various ecosystems including air, soil, marine water and sediments. Degradation of PAHs generally occurs through processes like photolysis, adsorption, volatilization, chemical degradation and microbial degradation. Microbial degradation of PAHs is done by the utilization of diverse microorganisms like algae, bacteria, fungi which are readily compatible with biodegrading/bio transforming PAHs into H2O, CO2 under aerobic, or CH4 under anaerobic environment. The rate of PAHs degradation using microbes is mainly governed by various cultivation conditions like temperature, pH, nutrients availability, microbial population, chemical nature of PAHs, oxygen and degree of acclimation. Several microbial species including Selenastrum capricornutum, Ralstonia basilensis, Acinetobacter haemolyticus, Pseudomonas migulae, Sphingomonas yanoikuyae and Chlorella sorokiniana are known to degrade PAHs via biosorption and enzyme-mediated degradation. Numerous bacterial mediated PAHs degradation methods are studied globally. Among them, PAHs degradation by bacterial species like Pseudomonas fluorescence, Pseudomonas aeruginosa, Rhodococcus spp., Paenibacillus spp., Mycobacterium spp., and Haemophilus spp., by various degradation modes like biosurfactant, bioaugmentation, biostimulation and biofilms mediated are also investigated. In contrarily, PAHs degradation by fungal species such as Pleurotus ostreatus, Polyporus sulphureus, Fusarium oxysporum occurs using the activity of its ligninolytic enzymes such as lignin peroxidase, laccase, and manganese peroxidase. The present review highlighted on the PAHs degradation activity by the algal, fungal, bacterial species and also focused on their mode of degradation.
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Affiliation(s)
- N Premnath
- Department of Energy Science, Alagappa University, Karaikudi, Tamil Nadu, India; Department of Microbiology, Alagappa University, Karaikudi, Tamil Nadu, India
| | - K Mohanrasu
- Department of Microbiology, Alagappa University, Karaikudi, Tamil Nadu, India
| | - R Guru Raj Rao
- Department of Bioinformatics, Alagappa University, Karaikudi, Tamil Nadu, India
| | - G H Dinesh
- Department of Microbiology, Alagappa University, Karaikudi, Tamil Nadu, India
| | - G Siva Prakash
- Department of Microbiology, Alagappa University, Karaikudi, Tamil Nadu, India
| | - V Ananthi
- Department of Microbiology, Alagappa University, Karaikudi, Tamil Nadu, India; Department of Microbiology, PRIST University, Madurai, Tamil Nadu, India
| | - Kumar Ponnuchamy
- Department of Animal Health and Management, Alagappa University, Karaikudi, Tamil Nadu, 630003, India
| | - Govarthanan Muthusamy
- Department of Environmental Engineering, Kyungpook National University, 41566, Daegu, Republic of Korea
| | - A Arun
- Department of Microbiology, Alagappa University, Karaikudi, Tamil Nadu, India.
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15
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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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16
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Mahto KU, Das S. Microscopic techniques to evaluate the biofilm formation ability of a marine bacterium Pseudomonas aeruginosa PFL-P1 on different substrata. Microsc Res Tech 2021; 84:2451-2461. [PMID: 33908128 DOI: 10.1002/jemt.23799] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 03/26/2021] [Accepted: 04/13/2021] [Indexed: 12/13/2022]
Abstract
Biofilm formation in bacteria is strongly affected by the nature of substrata. Different substrata such as glass, polystyrene, steel, ceramic, and rubber were used to assess the biofilm forming ability of a marine bacterium Pseudomonas aeruginosa PFL-P1 using a scanning electron microscope (SEM), atomic force microscope (AFM), and confocal laser scanning microscope (CLSM). The bacterium formed dense biofilms with varied aggregation on different substrata. SEM study revealed small rod-shaped cells with diverse arrangements within the biofilms on all the substrata under study. The AFM study revealed the highest roughness of 545 nm on the ceramic substratum. The biofilms formed on ceramic substratum were characterized with maximum roughness (742 nm), maximum peak height (1,480 nm), and maximum arithmetic mean height (611 nm), significantly higher than all the other substrata (p < .05). AFM studies confirmed that P. aeruginosa PFL-P1 exhibited biofilm heterogeneity on all the substrata. The CLSM study indicated a higher fraction of nucleic acids to α-polysaccharides ratio in the biofilms. COMSTAT analysis revealed the highest biofilm biomass of ~18 μm3 /μm2 on the ceramic substratum. The maximum biofilm thickness of ~50 μm in the native state on the ceramic substratum was significantly higher than glass (p = .0015), polystyrene (p = .0001), steel (p = .0035), and rubber substrata (p = .0001). The higher surface roughness of ceramic substratum is accountable for more area for colonization, as evident from higher biomass and thickness of the biofilm. This study provides insight into the substratum properties, which modulate the biofilm forming ability in bacteria.
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Affiliation(s)
- Kumari Uma Mahto
- Laboratory of Environmental Microbiology and Ecology (LEnME), Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - Surajit Das
- Laboratory of Environmental Microbiology and Ecology (LEnME), Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
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17
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Premnath N, Mohanrasu K, Guru Raj Rao R, Dinesh GH, Siva Prakash G, Pugazhendhi A, Jeyakanthan J, Govarthanan M, Kumar P, Arun A. Effect of C/N substrates for enhanced extracellular polymeric substances (EPS) production and Poly Cyclic Aromatic Hydrocarbons (PAHs) degradation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 275:116035. [PMID: 33581631 DOI: 10.1016/j.envpol.2020.116035] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 09/18/2020] [Accepted: 09/20/2020] [Indexed: 05/22/2023]
Abstract
Extracellular Polymeric Substances (EPS) influenced Poly Cyclic Aromatic Hydrocarbons (PAHs) degrading Klebsiella pneumoniae was isolated from the marine environment. To increase the EPS production by Klebsiella pneumoniae, several physicochemical parameters were tweaked such as different carbon sources (arabinose, glucose, glycerol, lactose, lactic acid, mannitol, sodium acetate, starch, and sucrose at 20 g/L), nitrogen sources (ammonium chloride, ammonium sulphate, glycine, potassium nitrate, protease peptone and urea at 2 g/L), different pH, carbon/nitrogen ratio, temperature, and salt concentration were examined. Maximum EPS growth and biodegradation of Anthracene (74.31%), Acenaphthene (67.28%), Fluorene (62.48%), Naphthalene (57.84%), and mixed PAHs (55.85%) were obtained using optimized conditions such as glucose (10 g/L) as carbon source, potassium nitrate (2 g/L) as the nitrogen source at pH 8, growth temperature of 37 °C, 3% NaCl concentration and 72 h incubation period. The Klebsiella pneumoniae biofilm architecture was studied by confocal laser scanning microscopy (CLSM) and scanning electron microscope (SEM). The present study demonstrates the EPS influenced PAHs degradation of Klebsiella pneumoniae.
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Affiliation(s)
- N Premnath
- Department of Energy Science, Alagappa University, Karaikudi, Tamil Nadu, India; Department of Microbiology, Alagappa University, Karaikudi, Tamil Nadu, India
| | - K Mohanrasu
- Department of Energy Science, Alagappa University, Karaikudi, Tamil Nadu, India; Department of Microbiology, Alagappa University, Karaikudi, Tamil Nadu, India
| | - R Guru Raj Rao
- Department of Bioinformatics, Alagappa University, Karaikudi, Tamil Nadu, India
| | - G H Dinesh
- Department of Energy Science, Alagappa University, Karaikudi, Tamil Nadu, India; Department of Microbiology, Alagappa University, Karaikudi, Tamil Nadu, India
| | - G Siva Prakash
- Department of Energy Science, Alagappa University, Karaikudi, Tamil Nadu, India
| | - Arivalagan Pugazhendhi
- Innovative Green Product Synthesis and Renewable Environment Development Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho, Chi Minh City, Viet Nam.
| | - J Jeyakanthan
- Department of Bioinformatics, Alagappa University, Karaikudi, Tamil Nadu, India
| | - Muthusamy Govarthanan
- Department of Environmental Engineering, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Ponnuchamy Kumar
- Department of Animal Health and Management, Alagappa University, Karaikudi, Tamil Nadu, India
| | - A Arun
- Department of Microbiology, Alagappa University, Karaikudi, Tamil Nadu, India.
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18
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Clemente A, Alba-Patiño A, Rojo-Molinero E, Russell SM, Borges M, Oliver A, de la Rica R. Rapid Detection of Pseudomonas aeruginosa Biofilms via Enzymatic Liquefaction of Respiratory Samples. ACS Sens 2020; 5:3956-3963. [PMID: 33232131 DOI: 10.1021/acssensors.0c01618] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Respiratory infections caused by multi-drug-resistant Pseudomonas aeruginosa often yield poor outcomes if not detected right away. However, detecting this pathogen in respiratory samples with a rapid diagnostic test is challenging because the protective biofilms created by the pathogen are themselves surrounded by a high-viscosity sputum matrix. Here, we introduce a method for liquefying respiratory samples and disrupting bacterial biofilms on the spot within a minute. It relies on the generation of oxygen bubbles by bacterial catalase through the addition of hydrogen peroxide. When coupled with a mobile biosensor made of paper, the resulting diagnostic kit was able to detect P. aeruginosa infections in sputa from patients with excellent sensitivity and specificity within 8 min. The quick turnaround time along with few infrastructure requirements make this method ideal for the rapid screening of P. aeruginosa infections at the point of care.
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Affiliation(s)
- Antonio Clemente
- Multidisciplinary Sepsis Group, Health Research Institute of the Balearic Islands (IdISBa), 07120 Palma de Mallorca, Spain
| | - Alejandra Alba-Patiño
- Multidisciplinary Sepsis Group, Health Research Institute of the Balearic Islands (IdISBa), 07120 Palma de Mallorca, Spain
| | - Estrella Rojo-Molinero
- Servicio de Microbiología, Hospital Son Espases, Health Research Institute of the Balearic Islands (IdISBa), 07120 Palma de Mallorca, Spain
| | - Steven M. Russell
- Multidisciplinary Sepsis Group, Health Research Institute of the Balearic Islands (IdISBa), 07120 Palma de Mallorca, Spain
| | - Marcio Borges
- Multidisciplinary Sepsis Group, Health Research Institute of the Balearic Islands (IdISBa), 07120 Palma de Mallorca, Spain
- Multidisciplinary Sepsis Unit, ICU, Son Llàtzer University Hospital, 07198 Palma de Mallorca, Spain
| | - Antonio Oliver
- Servicio de Microbiología, Hospital Son Espases, Health Research Institute of the Balearic Islands (IdISBa), 07120 Palma de Mallorca, Spain
| | - Roberto de la Rica
- Multidisciplinary Sepsis Group, Health Research Institute of the Balearic Islands (IdISBa), 07120 Palma de Mallorca, Spain
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Wang T, Su D, Wang X, He Z. Adsorption-Degradation of Polycyclic Aromatic Hydrocarbons in Soil by Immobilized Mixed Bacteria and Its Effect on Microbial Communities. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:14907-14916. [PMID: 33274638 DOI: 10.1021/acs.jafc.0c04752] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The combined action of biosorption and biodegradation can achieve a remarkable reduction of organic pollutants. In this study, Pseudomonas sp. SDR4 and Mortierella alpina JDR7 were selected as the representative microorganisms to investigate adsorption and degradation of polycyclic aromatic hydrocarbons (PAHs) in soil using immobilization technology and the subsequent change of the microbial community structure. The results showed that the adsorption capacity of immobilized carriers was much higher than that of dead microorganisms and that the addition of dead microorganisms did not affect the adsorption characteristics of immobilized carriers. The chemical reaction was the major factor controlling the adsorption rate of PAHs in sterilized soil (CK), nonsterilized soil (CK-1), and soil amended with dead body immobilized JDR7 and SDR4 mixed bacteria (MB-D). The growth and metabolism of Pseudomonas sp. SDR4 and M. alpina JDR7 are the main reason for enhanced PAH degradation in the soil amended with living body immobilized JDR7, SDR4 mixed bacteria (MB).
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Affiliation(s)
- Tianjie Wang
- College of Environment Science, Liaoning University, 66 Chongshan Middle Street, Huanggu District, Shenyang 110036, P. R. China
| | - Dan Su
- College of Environment Science, Liaoning University, 66 Chongshan Middle Street, Huanggu District, Shenyang 110036, P. R. China
| | - Xin Wang
- Key Laboratory of Eco-Remediation of Regional Contaminated Environment, Ministry of Education, Shenyang University, Shenyang 110044, P. R. China
| | - Zhenli He
- University of Florida-IFAS, Indian River Research and Education Center, Fort Pierce, Florida 34945-3138, United States
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20
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Mahto KU, Das S. Whole genome characterization and phenanthrene catabolic pathway of a biofilm forming marine bacterium Pseudomonas aeruginosa PFL-P1. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 206:111087. [PMID: 32871516 DOI: 10.1016/j.ecoenv.2020.111087] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 07/23/2020] [Accepted: 07/27/2020] [Indexed: 05/02/2023]
Abstract
Pseudomonas aeruginosa is a small rod shaped Gram-negative bacterium of Gammaproteobacteria class known for its metabolic versatility. P. aeruginosa PFL-P1 was isolated from Polycyclic Aromatic Hydrocarbons (PAHs) contaminated site of Paradip Port, Odisha Coast, India. The strain showed excellent biofilm formation and could retain its ability to form biofilm grown with different PAHs in monoculture as well as co-cultures. To explore mechanistic insights of PAHs metabolism, the whole genome of the strain was sequenced. Next generation sequencing unfolded a genome size of 6,333,060 bp encoding 5857 CDSs. Gene ontology distribution assigned to a total of 2862 genes, wherein 2235 genes were allocated to biological process, 1549 genes to cellular component and 2339 genes to molecular function. A total of 318 horizontally transferred genes were identified when the genome was compared with the reference genomes of P. aeruginosa PAO1 and P. aeruginosa DSM 50071. Further comparison of P. aeruginosa PFL-P1 genome with P. putida containing TOL plasmids revealed similarities in the meta cleavage pathway employed for degradation of aromatic compounds like xylene and toluene. Gene annotation and pathway analysis unveiled 145 genes involved in xenobiotic biodegradation and metabolism. The biofilm cultures of P. aeruginosa PFL-P1 could degrade ~74% phenanthrene within 120 h while degradation increased up to ~76% in co-culture condition. GC-MS analysis indicated presence of diverse metabolites indicating the involvement of multiple pathways for one of the PAHs (phenanthrene) degradation. The strain also possesses the genetic machinery to utilize diverse toxic aromatic compounds such as naphthalene, benzoate, aminobenzoate, fluorobenzoate, toluene, xylene, styrene, atrazine, caprolactam etc. Common catabolic gene clusters such as benABCD, xylXYZ and catAB were observed within the genome of P. aeruginosa PFL-P1 which play key roles in the degradation of various toxic aromatic compounds.
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Affiliation(s)
- Kumari Uma Mahto
- Laboratory of Environmental Microbiology and Ecology (LEnME), Department of Life Science, National Institute of Technology, Rourkela, 769008, Odisha, India
| | - Surajit Das
- Laboratory of Environmental Microbiology and Ecology (LEnME), Department of Life Science, National Institute of Technology, Rourkela, 769008, Odisha, India.
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Hasanzadeh R, Abbasi Souraki B, Pendashteh A, Khayati G, Ahmadun FR. Application of isolated halophilic microorganisms suspended and immobilized on walnut shell as biocarrier for treatment of oilfield produced water. JOURNAL OF HAZARDOUS MATERIALS 2020; 400:123197. [PMID: 32947738 DOI: 10.1016/j.jhazmat.2020.123197] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/09/2020] [Accepted: 06/10/2020] [Indexed: 06/11/2023]
Abstract
Salinity expressed as total dissolved solids (TDS), is the most challenging parameter in bioremediation of produced water which may inhibit the microbial activities and cause sedimentation problems. The present study explores the feasibility of using walnut shell as an inexpensive and accessible adsorbent-carrier for the immobilization of isolated halophilic microorganisms for treatment of synthetic oilfield produced water. The moving bed biofilm reactor (MBBR) was examined with influent chemical oxygen demand (COD) concentrations from 900 to 3600 mg L-1, TDS concentrations from 35,000-200,000 mg L-1, and cycle times from 24 to 72 h. Comparison of the MBBR with the conventional sequencing batch reactor (SBR) indicated that both systems operated at lower influent COD and TDS concentrations satisfactorily; but at higher TDSs (above 150,000 mg L-1) the MBBR was more resistant to the shocks of toxicity (salinity) and organic load relative to the SBR. Also, the effluent turbidity was lower and the free sludge settling property was more favorable in the MBBR with average sludge volume index (SVI) of 38.8 mL g-1 compared to the SBR with SVI of 98.09 mL g-1. Microbial identification confirmed the presence of eight dominant halophilic species which were hydrocarbon degraders and/or denitrifiers.
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Affiliation(s)
- Reyhaneh Hasanzadeh
- Department of Chemical Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran; Department of Water and Environmental Engineering, Caspian Sea Basin Research Center, University of Guilan, Rasht, Iran..
| | - Behrooz Abbasi Souraki
- Department of Chemical Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran
| | - Alireza Pendashteh
- Department of Chemical Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran; Department of Water and Environmental Engineering, Caspian Sea Basin Research Center, University of Guilan, Rasht, Iran..
| | - Gholam Khayati
- Department of Chemical Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran
| | - Fakhru'l-Razi Ahmadun
- Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang, Selangor D.E., Malaysia; Department of Civil Engineering, National Defence University of Malaysia, Sungai Besi Camp, Malaysia
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Kumari S, Mangwani N, Das S. Naphthalene catabolism by biofilm forming marine bacterium Pseudomonas aeruginosa N6P6 and the role of quorum sensing in regulation of dioxygenase gene. J Appl Microbiol 2020; 130:1217-1231. [PMID: 33025721 DOI: 10.1111/jam.14867] [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: 03/24/2020] [Revised: 08/31/2020] [Accepted: 09/17/2020] [Indexed: 11/27/2022]
Abstract
AIM This study aims to establish the role of quorum sensing (QS) system on the regulation of naphthalene ring cleaving gene ndo (encoding naphthalene dioxygenase) in biofilm forming marine bacterium Pseudomonas aeruginosa N6P6 for naphthalene degradation. METHODS AND RESULTS Total cell count of P. aeruginosa N6P6 during biofilm mode of growth was slightly higher (7·3 × 108 CFU per ml) than its planktonic mid-exponential phase culture (4·7 × 108 CFU per ml). Naphthalene degradation in 20h by biofilm (48-h old) and planktonic culture was 99·4 ± 0·002% and 77 ± 3·25%, respectively. Pseudomonas aeruginosa N6P6 was able to degrade 64·3 ± 4·7% naphthalene in sterile soil microcosm in 24 h. The bacterium showed the presence of 136 bp ndo gene which was upregulated in a dose-dependent manner in presence of naphthalene. QS inhibitor (QSI) tannic acid downregulated the expression of ndo gene, naphthalene 1, 2-dioxygenase (N12O) enzyme activity and naphthalene degradation (by biofilm culture). CONCLUSIONS P. aeruginosa N6P6 shows chemotaxis towards naphthalene and adapts well in terrestrial environment for naphthalene degradation. SIGNIFICANCE AND IMPACT THE OF STUDY This study provides the information that the QS plays crucial role in biofilm formation in P. aeruginosa N6P6 and QS regulatory genes subsequently control the ndo gene for enzymatic degradation of naphthalene.
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Affiliation(s)
- S Kumari
- Laboratory of Environmental Microbiology and Ecology (LEnME), Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - N Mangwani
- Laboratory of Environmental Microbiology and Ecology (LEnME), Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - S Das
- Laboratory of Environmental Microbiology and Ecology (LEnME), Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
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French KE, Zhou Z, Terry N. Horizontal 'gene drives' harness indigenous bacteria for bioremediation. Sci Rep 2020; 10:15091. [PMID: 32934307 PMCID: PMC7492276 DOI: 10.1038/s41598-020-72138-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 08/24/2020] [Indexed: 01/21/2023] Open
Abstract
Engineering bacteria to clean-up oil spills is rapidly advancing but faces regulatory hurdles and environmental concerns. Here, we develop a new technology to harness indigenous soil microbial communities for bioremediation by flooding local populations with catabolic genes for petroleum hydrocarbon degradation. Overexpressing three enzymes (almA, xylE, p450cam) in Escherichia coli led to degradation of 60-99% of target hydrocarbon substrates. Mating experiments, fluorescence microscopy and TEM revealed indigenous bacteria could obtain these vectors from E. coli through several mechanisms of horizontal gene transfer (HGT), including conjugation and cytoplasmic exchange through nanotubes. Inoculating petroleum-polluted sediments with E. coli carrying the vector pSF-OXB15-p450camfusion showed that the E. coli cells died after five days but a variety of bacteria received and carried the vector for over 60 days after inoculation. Within 60 days, the total petroleum hydrocarbon content of the polluted soil was reduced by 46%. Pilot experiments show that vectors only persist in indigenous populations when under selection pressure, disappearing when this carbon source is removed. This approach to remediation could prime indigenous bacteria for degrading pollutants while providing minimal ecosystem disturbance.
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Affiliation(s)
- Katherine E French
- Department of Plant and Microbial Biology, University of California Berkeley, Koshland Hall, Berkeley, CA, 94720, USA.
| | - Zhongrui Zhou
- QB3, University of California Berkeley, Stanley Hall, Berkeley, CA, 94720, USA
| | - Norman Terry
- Department of Plant and Microbial Biology, University of California Berkeley, Koshland Hall, Berkeley, CA, 94720, USA
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Microbial biofilm ecology, in silico study of quorum sensing receptor-ligand interactions and biofilm mediated bioremediation. Arch Microbiol 2020; 203:13-30. [PMID: 32785735 DOI: 10.1007/s00203-020-02012-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 07/17/2020] [Accepted: 08/04/2020] [Indexed: 12/15/2022]
Abstract
Biofilms are structured microbial communities of single or multiple populations in which microbial cells adhere to a surface and get embedded in extracellular polymeric substances (EPS). This review attempts to explain biofilm architecture, development phases, and forces that drive bacteria to promote biofilm mode of growth. Bacterial chemical communication, also known as Quorum sensing (QS), which involves the production, detection, and response to small molecules called autoinducers, is highlighted. The review also provides a brief outline of interspecies and intraspecies cell-cell communication. Additionally, we have performed docking studies using Discovery Studio 4.0, which has enabled our understanding of the prominent interactions between autoinducers and their receptors in different bacterial species while also scoring their interaction energies. Receptors, such as LuxN (Phosphoreceiver domain and RecA domain), LuxP, and LuxR, interacted with their ligands (AI-1, AI-2, and AHL) with a CDocker interaction energy of - 31.6083 kcal/mole; - 34.5821 kcal/mole, - 48.2226 kcal/mole and - 41.5885 kcal/mole, respectively. Since biofilms are ideal for the remediation of contaminants due to their high microbial biomass and their potential to immobilize pollutants, this article also provides an overview of biofilm-mediated bioremediation.
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25
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Vimala RTV, Lija Escaline J, Sivaramakrishnan S. Characterization of self-assembled bioflocculant from the microbial consortium and its applications. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 258:110000. [PMID: 31929048 DOI: 10.1016/j.jenvman.2019.110000] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 11/17/2019] [Accepted: 12/12/2019] [Indexed: 06/10/2023]
Abstract
Bioflocculant has been recently exploited in various research activities. In this research, we report for the first time that a novel bioflocculant can self-assemble into nanoparticles with an irregular structure in solution. Bioflocculant has been developed from novel consortium encompassing Enterococcus faecalis, Proteus mirabilis, Lysini bacillus sp., inoculated into the modified medium such as hydrolyzed wheat bran and rice bran extract. Characterization of bioflocculant shows that it is made up of mannose, fructose, raffinose, and galactose with a slightly negative charges. They are further characterized by FTIR and XPS. 3D-EEM and MALDITOF-MS are confirmed the proteoglycan nature of the bioflocculant. These bioflocculant not only exhibits greater biosorption of heavy metals by self-flocculating (or) self-aggregating activity, but also possesses mosquitocidal and anti-biofilm activity due to its cell surface modification. Further research have to be carried out regarding the mechanism of self-assembly nature of bioflocculant into nanoparticle in solution which provide a new path for bioremediation and biomedical application.
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Affiliation(s)
- R T V Vimala
- Department of Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, India
| | - J Lija Escaline
- Department of Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, India
| | - S Sivaramakrishnan
- Department of Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, India.
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26
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Staninska-Pięta J, Czarny J, Piotrowska-Cyplik A, Juzwa W, Wolko Ł, Nowak J, Cyplik P. Heavy Metals as a Factor Increasing the Functional Genetic Potential of Bacterial Community for Polycyclic Aromatic Hydrocarbon Biodegradation. Molecules 2020; 25:molecules25020319. [PMID: 31941126 PMCID: PMC7024319 DOI: 10.3390/molecules25020319] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/01/2020] [Accepted: 01/10/2020] [Indexed: 01/23/2023] Open
Abstract
The bioremediation of areas contaminated with hydrocarbon compounds and heavy metals is challenging due to the synergistic toxic effects of these contaminants. On the other hand, the phenomenon of the induction of microbial secretion of exopolysaccharides (EPS) under the influence of heavy metals may contribute to affect the interaction between hydrophobic hydrocarbons and microbial cells, thus increasing the bioavailability of hydrophobic organic pollutants. The purpose of this study was to analyze the impact of heavy metals on the changes in the metapopulation structure of an environmental consortium, with particular emphasis on the number of copies of orthologous genes involved in exopolysaccharide synthesis pathways and the biodegradation of hydrocarbons. The results of the experiment confirmed that the presence of heavy metals at concentrations of 50 mg·L-1 and 150 mg·L-1 resulted in a decrease in the metabolic activity of the microbial consortium and its biodiversity. Despite this, an increase in the biological degradation rate of polycyclic aromatic hydrocarbons was noted of 17.9% and 16.9%, respectively. An assessment of the estimated number of genes crucial for EPS synthesis and biodegradation of polycyclic aromatic hydrocarbons confirmed the relationship between the activation of EPS synthesis pathways and polyaromatic hydrocarbon biodegradation pathways. It was established that microorganisms that belong to the Burkholderiales order are characterized by a high representation of the analyzed orthologs and high application potential in areas contaminated with heavy metals and hydrocarbons.
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Affiliation(s)
- Justyna Staninska-Pięta
- Institute of Food Technology of Plant Origin, Poznan University of Life Sciences, Wojska Polskiego 31, 60-624 Poznań, Poland; (J.S.-P.); (A.P.-C.); (J.N.)
| | - Jakub Czarny
- Institute of Forensic Genetics, Al. Mickiewicza 3/4, 85-071 Bydgoszcz, Poland;
| | - Agnieszka Piotrowska-Cyplik
- Institute of Food Technology of Plant Origin, Poznan University of Life Sciences, Wojska Polskiego 31, 60-624 Poznań, Poland; (J.S.-P.); (A.P.-C.); (J.N.)
| | - Wojciech Juzwa
- Department Biotechnology and Food Microbiology, Poznan University of Life Sciences, Wojska Polskiego 48, 60-627 Poznan, Poland;
| | - Łukasz Wolko
- Department of Biochemistry and Biotechnology, Poznan University of Life Sciences, Dojazd 11, 60-632 Poznań, Poland;
| | - Jacek Nowak
- Institute of Food Technology of Plant Origin, Poznan University of Life Sciences, Wojska Polskiego 31, 60-624 Poznań, Poland; (J.S.-P.); (A.P.-C.); (J.N.)
| | - Paweł Cyplik
- Department Biotechnology and Food Microbiology, Poznan University of Life Sciences, Wojska Polskiego 48, 60-627 Poznan, Poland;
- Correspondence: ; Tel.: +48-618466025
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27
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Solvent free synthesis of ferrocene based rhodamine – hydrazone molecular probe with improved bioaccumulation for sensing and imaging applications. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.120999] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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28
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Mangwani N, Kumari S, Das S. Taxonomy and Characterization of Biofilm Forming Polycyclic Aromatic Hydrocarbon Degrading Bacteria from Marine Environments. Polycycl Aromat Compd 2019. [DOI: 10.1080/10406638.2019.1666890] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Neelam Mangwani
- Laboratory of Environmental Microbiology and Ecology (LEnME), Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - Supriya Kumari
- Laboratory of Environmental Microbiology and Ecology (LEnME), Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - Surajit Das
- Laboratory of Environmental Microbiology and Ecology (LEnME), Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
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29
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Karley D, Shukla SK, Rao TS. Microbiota of spent nuclear fuel pool water with emphasis on their biofilm forming ability on stainless steel (SS-304L). J Biosci 2019. [DOI: 10.1007/s12038-019-9937-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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30
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Zhou Y, Gao X. Characterization of Biofilm Formed by Phenanthrene-Degrading Bacteria on Rice Root Surfaces for Reduction of PAH Contamination in Rice. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E2002. [PMID: 31195653 PMCID: PMC6603869 DOI: 10.3390/ijerph16112002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 05/28/2019] [Accepted: 05/31/2019] [Indexed: 01/13/2023]
Abstract
One effective method in to reduce the uptake of organic contaminants by plants is the development of a root barrier. In this study, the characterization of biofilm structure and function by phenanthrene-degrading Pseudomonas sp. JM2-gfp on rice root surfaces were carried out. Our results showed that root surfaces from three rice species, namely Liaojing401, Koshihikari, and Zhenzhuhong all present hydrophobicity and a high initial adhesion of strain JM2-gfp. Matured robust biofilm formation occurred at 48 h on the root surfaces. The biofilm exhibited cell dense aggregates and biomass embedded in the extracellular polymeric substance (EPS) matrix. EPS composition results showed that the proteins, carbohydrates, lipids and nucleic acids are produced in the biofilm, while the content varied with rice species. Under the initial concentration of phenanthrene 50 mg·L-1, the residual phenanthrene in plant roots from 'Zhengzhuhong', 'Koshihikari' and 'Liaojing401' with biofilm mediated were significantly decreased by 71.9%, 69.3% and 58.7%, respectively, compared to those without biofilm groups after 10 days of exposure. Thus, the biofilm colonized on roots plays an important role of degradation in order to reduce the level of phenanthrene uptake of plants. Thereby, the present work provides significant new insights into lowering the environmental risks of polycyclic aromatic hydrocarbons (PAHs) in crop products from contaminated agriculture soils.
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Affiliation(s)
- Yuman Zhou
- Liaoning Key Laboratory of Molecular Recognition and Imaging, School of Bioengineering, Dalian University of Technology, Dalian 116023, China.
| | - Xiaorong Gao
- Liaoning Key Laboratory of Molecular Recognition and Imaging, School of Bioengineering, Dalian University of Technology, Dalian 116023, China.
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31
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Cattò C, Secundo F, James G, Villa F, Cappitelli F. α-Chymotrypsin Immobilized on a Low-Density Polyethylene Surface Successfully Weakens Escherichia coli Biofilm Formation. Int J Mol Sci 2018; 19:E4003. [PMID: 30545074 PMCID: PMC6321288 DOI: 10.3390/ijms19124003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 11/23/2018] [Accepted: 12/10/2018] [Indexed: 12/25/2022] Open
Abstract
The protease α-chymotrypsin (α-CT) was covalently immobilized on a low-density polyethylene (LDPE) surface, providing a new non-leaching material (LDPE-α-CT) able to preserve surfaces from biofilm growth over a long working timescale. The immobilized enzyme showed a transesterification activity of 1.24 nmol/h, confirming that the immobilization protocol did not negatively affect α-CT activity. Plate count viability assays, as well as confocal laser scanner microscopy (CLSM) analysis, showed that LDPE-α-CT significantly impacts Escherichia coli biofilm formation by (i) reducing the number of adhered cells (-70.7 ± 5.0%); (ii) significantly affecting biofilm thickness (-81.8 ± 16.7%), roughness (-13.8 ± 2.8%), substratum coverage (-63.1 ± 1.8%), and surface to bio-volume ratio (+7.1 ± 0.2-fold); and (iii) decreasing the matrix polysaccharide bio-volume (80.2 ± 23.2%). Additionally, CLSM images showed a destabilized biofilm with many cells dispersing from it. Notably, biofilm stained for live and dead cells confirmed that the reduction in the biomass was achieved by a mechanism that did not affect bacterial viability, reducing the chances for the evolution of resistant strains.
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Affiliation(s)
- Cristina Cattò
- Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, Milano 20133, Italy.
| | - Francesco Secundo
- Institute of Chemistry of Molecular Recognition, National Research Council, Milano 20131, Italy.
| | - Garth James
- Center for Biofilm Engineering, Montana State University, Bozeman, MT 59717, USA.
| | - Federica Villa
- Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, Milano 20133, Italy.
| | - Francesca Cappitelli
- Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, Milano 20133, Italy.
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32
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Cattò C, James G, Villa F, Villa S, Cappitelli F. Zosteric acid and salicylic acid bound to a low density polyethylene surface successfully control bacterial biofilm formation. BIOFOULING 2018; 34:440-452. [PMID: 29726716 DOI: 10.1080/08927014.2018.1462342] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 03/27/2018] [Indexed: 06/08/2023]
Abstract
The active moieties of the anti-biofilm natural compounds zosteric (ZA) and salicylic (SA) acids have been covalently immobilized on a low density polyethylene (LDPE) surface. The grafting procedure provided new non-toxic eco-friendly materials (LDPE-CA and LDPE-SA) with anti-biofilm properties superior to the conventional biocide-based approaches and with features suitable for applications in challenging fields where the use of antimicrobial agents is limited. Microbiological investigation proved that LDPE-CA and LDPE-SA: (1) reduced Escherichia coli biofilm biomass by up to 61% with a mechanism that did not affect bacterial viability; (2) significantly affected biofilm morphology, decreasing biofilm thickness, roughness, substratum coverage, cell and matrix polysaccharide bio-volumes by >80% and increasing the surface to bio-volume ratio; (3) made the biofilm more susceptible to ampicillin and ethanol. Since no molecules were leached from the surface, they remained constantly effective and below the lethal level; therefore, the risk of inducing resistance was minimized.
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Affiliation(s)
- C Cattò
- a Department of Food Environmental and Nutritional Sciences , Università degli Studi di Milano , Milan , Italy
- b Center for Biofilm Engineering , Montana State University , Bozeman , MT , USA
| | - G James
- b Center for Biofilm Engineering , Montana State University , Bozeman , MT , USA
| | - F Villa
- a Department of Food Environmental and Nutritional Sciences , Università degli Studi di Milano , Milan , Italy
| | - S Villa
- c Department of Pharmaceutical Sciences , Università degli Studi di Milano , Milan , Italy
| | - F Cappitelli
- a Department of Food Environmental and Nutritional Sciences , Università degli Studi di Milano , Milan , Italy
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33
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Saba, Andreasen R, Li Y, Rehman Y, Ahmed M, Meyer R, Sabri A. Prospective role of indigenousExiguobacterium profundumPT2 in arsenic biotransformation and biosorption by planktonic cultures and biofilms. J Appl Microbiol 2018; 124:431-443. [DOI: 10.1111/jam.13636] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 10/10/2017] [Accepted: 11/02/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Saba
- Department of Microbiology and Molecular Genetics; University of the Punjab; Lahore Pakistan
- Interdisciplinary Nanoscience Centre; Aarhus University; Aarhus Denmark
- The Women University Multan; Multan Pakistan
| | - R. Andreasen
- Department of Geoscience; Aarhus University; Aarhus Denmark
| | - Y. Li
- Bio-Optics Institute; School of Physics and Electronics; Henan University; Henan China
| | - Y. Rehman
- Department of Microbiology and Molecular Genetics; University of the Punjab; Lahore Pakistan
| | - M. Ahmed
- Department of Microbiology and Molecular Genetics; University of the Punjab; Lahore Pakistan
| | - R.L. Meyer
- Interdisciplinary Nanoscience Centre; Aarhus University; Aarhus Denmark
| | - A.N. Sabri
- Department of Microbiology and Molecular Genetics; University of the Punjab; Lahore Pakistan
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34
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Xie Y, Gu Z, Herath HMSK, Gu M, He C, Wang F, Jiang X, Zhang J, Zhang Y. Evaluation of bacterial biodegradation and accumulation of phenanthrene in the presence of humic acid. CHEMOSPHERE 2017; 184:482-488. [PMID: 28618280 DOI: 10.1016/j.chemosphere.2017.06.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2017] [Revised: 05/17/2017] [Accepted: 06/07/2017] [Indexed: 06/07/2023]
Abstract
This study evaluated the effect of humic acid (HA) on physicochemical properties of bacterial surfaces and on mass transfer of polycyclic aromatic hydrocarbons (PAHs) from aqueous phase into intracellular bacteria. Due to this process' potential for bacterial degradation, using Sphingobium sp. PHE3, degradation of phenanthrene (PHE) was compared in HA and non-HA sets. The results showed that approximately 51.1% of PHE at a concentration of 102.0 mg L-1 was biodegraded in the non-HA sets, whereas almost all PHE was biodegraded with HA after 72 h. Interestingly, PHE that accumulated in the intracellular bacteria reached 3.80 mg L-1 for the HA sets, which was significantly higher than that of non-HA. Lipid inclusion bodies appeared when Sphingobium sp. PHE3 was treated with HA. The results were further confirmed by the enhanced bacterial surface sorption capacity for the HA sets. Therefore, we concluded that added HA not only act as carriers and biosurfactants facilitating PHE uptake but also adjust bacteria cell wall properties for internalizing PHE, which ultimately overcame the PHE bioavailability resulting in enhanced biodegradation.
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Affiliation(s)
- Yun Xie
- Nanjing Normal University, School of Chemistry and Materials Science, Center for Analysis and Testing, Nanjing 210046, China; Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Zhenggui Gu
- Nanjing Normal University, School of Chemistry and Materials Science, Center for Analysis and Testing, Nanjing 210046, China
| | - H M S K Herath
- Department of Export Agriculture, Faculty of Animal Science and Export Agriculture, Uva Wellassa University, Passara Road, Badulla, 90 000, Sri Lanka
| | - Minfen Gu
- Nanjing Normal University, School of Chemistry and Materials Science, Center for Analysis and Testing, Nanjing 210046, China
| | - Chang He
- Nanjing Normal University, School of Chemistry and Materials Science, Center for Analysis and Testing, Nanjing 210046, China
| | - Fang Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Xin Jiang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Jie Zhang
- Nanjing Normal University, School of Chemistry and Materials Science, Center for Analysis and Testing, Nanjing 210046, China.
| | - Yinping Zhang
- Nanjing Normal University, School of Chemistry and Materials Science, Center for Analysis and Testing, Nanjing 210046, China; Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
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35
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Wang Z, Chen Z, Yang L, Tan F, Wang Y, Li Q, Chang YI, Zhong CJ, He N. Effect of surface physicochemical properties on the flocculation behavior of Bacillus licheniformis. RSC Adv 2017. [DOI: 10.1039/c6ra28057a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Flocculation model ofB. licheniformisCGMCC 2876 deduced by XDLVO and surface thermodynamic characterization.
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Affiliation(s)
- Zhi Wang
- Department of Chemical and Biochemical Engineering
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
- P. R. China
| | - Zhen Chen
- Department of Chemical and Biochemical Engineering
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
- P. R. China
| | - Lijie Yang
- Department of Chemical and Biochemical Engineering
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
- P. R. China
| | - Fen Tan
- Department of Chemical and Biochemical Engineering
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
- P. R. China
| | - Yuanpeng Wang
- Department of Chemical and Biochemical Engineering
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
- P. R. China
| | - Qingbiao Li
- Department of Chemical and Biochemical Engineering
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
- P. R. China
| | - You-Im Chang
- Department of Chemical and Material Engineering
- Tunghai University
- Taichung 40704
- Taiwan
| | - Chuan-Jian Zhong
- Department of Chemistry
- State University of New York at Binghamton
- Binghamton
- USA
| | - Ning He
- Department of Chemical and Biochemical Engineering
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
- P. R. China
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