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Guan X, Jia D, Liu X, Ding C, Guo J, Yao M, Zhang Z, Zhou M, Sun J. Combined influence of the nanoplastics and polycyclic aromatic hydrocarbons exposure on microbial community in seawater environment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 945:173772. [PMID: 38871313 DOI: 10.1016/j.scitotenv.2024.173772] [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: 02/13/2024] [Revised: 05/21/2024] [Accepted: 06/02/2024] [Indexed: 06/15/2024]
Abstract
Nanoplastics (NPs) and polycyclic aromatic hydrocarbons (PAHs) are recognized as persistent organic pollutant (POPs) with demonstrated physiological toxicity. When present in aquatic environments, the two pollutants could combine with each other, resulting in cumulative toxicity to organisms. However, the combined impact of NPs and PAHs on microorganisms in seawater is not well understood. In this study, we conducted an exposure experiment to investigate the individual and synergistic effects of NPs and PAHs on the composition, biodiversity, co-occurrence networks of microbial communities in seawater. Exposure of individuals to PAHs led to a reduction in microbial community richness, but an increase in the relative abundance of species linked to PAHs degradation. These PAHs-degradation bacteria acting as keystone species, maintained a microbial network complexity similar to that of the control treatment. Exposure to individual NPs resulted in a reduction in the complexity of microbial networks. Furthermore, when PAHs and NPs were simultaneously present, the toxic effect of NPs hindered the presence of keystone species involved in PAHs degradation, subsequently limiting the degradation of PAHs by marine microorganisms, resulting in a decrease in community diversity and symbiotic network complexity. This situation potentially poses a heightened threat to the ecological stability of marine ecosystems. Our work strengthened the understanding of the combined impact of NPs and PAHs on microorganisms in seawater.
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Affiliation(s)
- Xin Guan
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin, China
| | - Dai Jia
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin, China.
| | - Xinyu Liu
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin, China
| | - Changling Ding
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin, China; Institute for Advanced Marine Research, China University of Geosciences (Wuhan), Guangzhou, China; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences (Wuhan), Wuhan, China
| | - Jinfei Guo
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin, China
| | - Min Yao
- Jiangsu Hydrology and Water Resources Survey Bureau, Nanjing, China
| | - Zhan Zhang
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin, China
| | - Mengxi Zhou
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin, China
| | - Jun Sun
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin, China; Institute for Advanced Marine Research, China University of Geosciences (Wuhan), Guangzhou, China; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences (Wuhan), Wuhan, China.
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2
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Embarcadero-Jiménez S, Araujo-Palomares CL, Moreno-Perlín T, Ramírez-Álvarez N, Quezada-Hernández C, Batista-García RA, Sanchez-Flores A, Calcáneo-Hernández G, Silva-Jiménez H. Physiology and comparative genomics of the haloalkalitolerant and hydrocarbonoclastic marine strain Rhodococcus ruber MSA14. Arch Microbiol 2024; 206:328. [PMID: 38935150 DOI: 10.1007/s00203-024-04050-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 06/07/2024] [Accepted: 06/12/2024] [Indexed: 06/28/2024]
Abstract
Marine hydrocarbonoclastic bacteria can use polycyclic aromatic hydrocarbons as carbon and energy sources, that makes these bacteria highly attractive for bioremediation in oil-polluted waters. However, genomic and metabolic differences between species are still the subject of study to understand the evolution and strategies to degrade PAHs. This study presents Rhodococcus ruber MSA14, an isolated bacterium from marine sediments in Baja California, Mexico, which exhibits adaptability to saline environments, a high level of intrinsic pyrene tolerance (> 5 g L- 1), and efficient degradation of pyrene (0.2 g L- 1) by 30% in 27 days. Additionally, this strain demonstrates versatility by using naphthalene and phenanthrene as individual carbon sources. The genome sequencing of R. ruber MSA14 revealed a genome spanning 5.45 Mbp, a plasmid of 72 kbp, and three putative megaplasmids, lengths between 110 and 470 Kbp. The bioinformatics analysis of the R. ruber MSA14 genome revealed 56 genes that encode enzymes involved in the peripheral and central pathways of aromatic hydrocarbon catabolism, alkane, alkene, and polymer degradation. Within its genome, R. ruber MSA14 possesses genes responsible for salt tolerance and siderophore production. In addition, the genomic analysis of R. ruber MSA14 against 13 reference genomes revealed that all compared strains have at least one gene involved in the alkanes and catechol degradation pathway. Overall, physiological assays and genomic analysis suggest that R. ruber MSA14 is a new haloalkalitolerant and hydrocarbonoclastic strain toward a wide range of hydrocarbons, making it a promising candidate for in-depth characterization studies and bioremediation processes as part of a synthetic microbial consortium, as well as having a better understanding of the catabolic potential and functional diversity among the Rhodococci group.
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Affiliation(s)
- Salvador Embarcadero-Jiménez
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Carretera Tijuana-Ensenada, No. 3917, Fraccionamiento Playitas, Ensenada, Baja California, 22860, México
| | - Cynthia Lizzeth Araujo-Palomares
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Carretera Tijuana-Ensenada, No. 3917, Fraccionamiento Playitas, Ensenada, Baja California, 22860, México
| | - Tonatiuh Moreno-Perlín
- Centro de Investigación en Dinámica Celular, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, Cuernavaca, C.P. 62209, México
| | - Nancy Ramírez-Álvarez
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Carretera Tijuana-Ensenada, No. 3917, Fraccionamiento Playitas, Ensenada, Baja California, 22860, México
| | - Cristina Quezada-Hernández
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Carretera Tijuana-Ensenada, No. 3917, Fraccionamiento Playitas, Ensenada, Baja California, 22860, México
| | - Ramón Alberto Batista-García
- Centro de Investigación en Dinámica Celular, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, Cuernavaca, C.P. 62209, México
- Departamento de Biología Animal, Biología Vegetal y Ecología, Facultad de Ciencias Experimentales, Universidad de Jaén, Campus Las Lagunillas s/n, Jaén, 23071, España
| | - Alejandro Sanchez-Flores
- Instituto de Biotecnología, Unidad Universitaria de Secuenciación Masiva y Bioinformática, Universidad Nacional Autónoma de México, Av. Universidad 2001, Col. Chamilpa, Cuernavaca, C.P. 62210, México
| | - Gabriela Calcáneo-Hernández
- Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Coyoacán, Ciudad de México, C.P. 04510, México
| | - Hortencia Silva-Jiménez
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Carretera Tijuana-Ensenada, No. 3917, Fraccionamiento Playitas, Ensenada, Baja California, 22860, México.
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Putman LI, Schaerer LG, Wu R, Kulas DG, Zolghadr A, Ong RG, Shonnard DR, Techtmann SM. Deconstructed Plastic Substrate Preferences of Microbial Populations from the Natural Environment. Microbiol Spectr 2023; 11:e0036223. [PMID: 37260392 PMCID: PMC10433879 DOI: 10.1128/spectrum.00362-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 05/09/2023] [Indexed: 06/02/2023] Open
Abstract
Over half of the world's plastic waste is landfilled, where it is estimated to take hundreds of years to degrade. Given the continued use and disposal of plastic products, it is vital that we develop fast and effective ways to utilize plastic waste. Here, we explore the potential of tandem chemical and biological processing to process various plastics quickly and effectively. Four samples of compost or sediment were used to set up enrichment cultures grown on mixtures of compounds, including disodium terephthalate and terephthalic acid (monomers of polyethylene terephthalate), compounds derived from the chemical deconstruction of polycarbonate, and pyrolysis oil derived from high-density polyethylene plastics. Established enrichment communities were also grown on individual substrates to investigate the substrate preferences of different taxa. Biomass harvested from the cultures was characterized using 16S rRNA gene amplicon sequencing and shotgun metagenomic sequencing. These data reveal low-diversity microbial communities structured by differences in culture inoculum, culture substrate source plastic type, and time. Microbial populations from the classes Alphaproteobacteria, Gammaproteobacteria, Actinobacteria, and Acidobacteriae were significantly enriched when grown on substrates derived from high-density polyethylene and polycarbonate. The metagenomic data contain abundant aromatic and aliphatic hydrocarbon degradation genes relevant to the biodegradation of deconstructed plastic substrates used here. We show that microbial populations from diverse environments are capable of growth on substrates derived from the chemical deconstruction or pyrolysis of multiple plastic types and that paired chemical and biological processing of plastics should be further developed for industrial applications to manage plastic waste. IMPORTANCE The durability and impermeable nature of plastics have made them a popular material for numerous applications, but these same qualities make plastics difficult to dispose of, resulting in massive amounts of accumulated plastic waste in landfills and the natural environment. Since plastic use and disposal are projected to increase in the future, novel methods to effectively break down and dispose of current and future plastic waste are desperately needed. We show that the products of chemical deconstruction or pyrolysis of plastic can successfully sustain the growth of low-diversity microbial communities. These communities were enriched from multiple environmental sources and are capable of degrading complex xenobiotic carbon compounds. This study demonstrates that tandem chemical and biological processing can be used to degrade multiple types of plastics over a relatively short period of time and may be a future avenue for the mitigation of rapidly accumulating plastic waste.
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Affiliation(s)
- Lindsay I. Putman
- Department of Biological Sciences, Michigan Technological University, Houghton, Michigan, USA
| | - Laura G. Schaerer
- Department of Biological Sciences, Michigan Technological University, Houghton, Michigan, USA
| | - Ruochen Wu
- Department of Chemical Engineering, Michigan Technological University, Houghton, Michigan, USA
| | - Daniel G. Kulas
- Department of Chemical Engineering, Michigan Technological University, Houghton, Michigan, USA
| | - Ali Zolghadr
- Department of Chemical Engineering, Michigan Technological University, Houghton, Michigan, USA
| | - Rebecca G. Ong
- Department of Chemical Engineering, Michigan Technological University, Houghton, Michigan, USA
| | - David R. Shonnard
- Department of Chemical Engineering, Michigan Technological University, Houghton, Michigan, USA
| | - Stephen M. Techtmann
- Department of Biological Sciences, Michigan Technological University, Houghton, Michigan, USA
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Panwar R, Mathur J. Microbial-assisted phytodegradation for the amelioration of pyrene-contaminated soil using Pseudomonas aeruginosa and Aspergillus oryzae with alfalfa and sunflower. 3 Biotech 2023; 13:251. [PMID: 37388857 PMCID: PMC10299988 DOI: 10.1007/s13205-023-03664-2] [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: 11/16/2022] [Accepted: 06/06/2023] [Indexed: 07/01/2023] Open
Abstract
Environmental pollution caused by polycyclic aromatic hydrocarbons (PAHs) jeopardizes nature. PAHs are the most toxic, mutagenic, and carcinogenic pollutants and their cleanup is important for the environment. In the current research, to assess and evaluate three remediation strategies for pyrene removal from the soil, a pot experiment was performed: (a) bioremediation with Pseudomonas aeruginosa and Aspergillus oryzae, (b) phytoremediation with sunflower (Helianthus annuus) and alfalfa (Medicago sativa L.) and (c) microbial-assisted phytoremediation for the treatment of pyrene (700 mg kg-1). Results depict that P. aeruginosa significantly promoted the growth and tolerance of taken plants and reduced pyrene concentration in soil. Compared with those planted in pyrene-contaminated soil without inoculation. The highest percentage of pyrene removal was observed in P. aeruginosa inoculated alfalfa (91%), alfalfa inoculated with A. oryzae (83.96%), and without inoculation (78.20%). Moreover, alfalfa planted in P. aeruginosa augmented soil had the highest dehydrogenase activity (37.83 μg TPF g-1 soil h-1), and fluorescein diacetate hydrolysis (91.67 μg fluorescein g-1 dry soil). DHA and FDA are the indicators of bioaugmentation influence on the indigenous microbial activity of contaminated soil. As a result of the findings, the rhizospheric association of plants and microbes is beneficial for pyrene removal. Therefore, P. aeruginosa-assisted phytodegradation might be a more successful remediation technique for pyrene-contaminated soil than bioremediation and phytodegradation solely.
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Affiliation(s)
- Ritu Panwar
- Department of Bioscience and Biotechnology, Banasthali Vidyapith, Banasthali, Rajasthan 304022 India
| | - Jyoti Mathur
- Department of Bioscience and Biotechnology, Banasthali Vidyapith, Banasthali, Rajasthan 304022 India
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Jiménez-Volkerink SN, Jordán M, Singleton DR, Grifoll M, Vila J. Bacterial benz(a)anthracene catabolic networks in contaminated soils and their modulation by other co-occurring HMW-PAHs. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 328:121624. [PMID: 37059172 DOI: 10.1016/j.envpol.2023.121624] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 04/04/2023] [Accepted: 04/09/2023] [Indexed: 05/09/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are major environmental pollutants in a number of point source contaminated sites, where they are found embedded in complex mixtures containing different polyaromatic compounds. The application of bioremediation technologies is often constrained by unpredictable end-point concentrations enriched in recalcitrant high molecular weight (HMW)-PAHs. The aim of this study was to elucidate the microbial populations and potential interactions involved in the biodegradation of benz(a)anthracene (BaA) in PAH-contaminated soils. The combination of DNA stable isotope probing (DNA-SIP) and shotgun metagenomics of 13C-labeled DNA identified a member of the recently described genus Immundisolibacter as the key BaA-degrading population. Analysis of the corresponding metagenome assembled genome (MAG) revealed a highly conserved and unique genetic organization in this genus, including novel aromatic ring-hydroxylating dioxygenases (RHD). The influence of other HMW-PAHs on BaA degradation was ascertained in soil microcosms spiked with BaA and fluoranthene (FT), pyrene (PY) or chrysene (CHY) in binary mixtures. The co-occurrence of PAHs resulted in a significant delay in the removal of PAHs that were more resistant to biodegradation, and this delay was associated with relevant microbial interactions. Members of Immundisolibacter, associated with the biodegradation of BaA and CHY, were outcompeted by Sphingobium and Mycobacterium, triggered by the presence of FT and PY, respectively. Our findings highlight that interacting microbial populations modulate the fate of PAHs during the biodegradation of contaminant mixtures in soils.
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Affiliation(s)
- Sara N Jiménez-Volkerink
- Department of Genetics, Microbiology and Statistics, University of Barcelona, Av. Diagonal, 643, 08028, Barcelona, Spain
| | - Maria Jordán
- Department of Genetics, Microbiology and Statistics, University of Barcelona, Av. Diagonal, 643, 08028, Barcelona, Spain
| | - David R Singleton
- Department of Civil and Environmental Engineering, Pratt School of Engineering, Duke University, Durham, NC, 27708-0287, USA
| | - Magdalena Grifoll
- Department of Genetics, Microbiology and Statistics, University of Barcelona, Av. Diagonal, 643, 08028, Barcelona, Spain.
| | - Joaquim Vila
- Department of Genetics, Microbiology and Statistics, University of Barcelona, Av. Diagonal, 643, 08028, Barcelona, Spain
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Vijayanand M, Ramakrishnan A, Subramanian R, Issac PK, Nasr M, Khoo KS, Rajagopal R, Greff B, Wan Azelee NI, Jeon BH, Chang SW, Ravindran B. Polyaromatic hydrocarbons (PAHs) in the water environment: A review on toxicity, microbial biodegradation, systematic biological advancements, and environmental fate. ENVIRONMENTAL RESEARCH 2023; 227:115716. [PMID: 36940816 DOI: 10.1016/j.envres.2023.115716] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/04/2023] [Accepted: 03/16/2023] [Indexed: 05/08/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are considered a major class of organic contaminants or pollutants, which are poisonous, mutagenic, genotoxic, and/or carcinogenic. Due to their ubiquitous occurrence and recalcitrance, PAHs-related pollution possesses significant public health and environmental concerns. Increasing the understanding of PAHs' negative impacts on ecosystems and human health has encouraged more researchers to focus on eliminating these pollutants from the environment. Nutrients available in the aqueous phase, the amount and type of microbes in the culture, and the PAHs' nature and molecular characteristics are the common factors influencing the microbial breakdown of PAHs. In recent decades, microbial community analyses, biochemical pathways, enzyme systems, gene organization, and genetic regulation related to PAH degradation have been intensively researched. Although xenobiotic-degrading microbes have a lot of potential for restoring the damaged ecosystems in a cost-effective and efficient manner, their role and strength to eliminate the refractory PAH compounds using innovative technologies are still to be explored. Recent analytical biochemistry and genetically engineered technologies have aided in improving the effectiveness of PAHs' breakdown by microorganisms, creating and developing advanced bioremediation techniques. Optimizing the key characteristics like the adsorption, bioavailability, and mass transfer of PAH boosts the microorganisms' bioremediation performance, especially in the natural aquatic water bodies. This review's primary goal is to provide an understanding of recent information about how PAHs are degraded and/or transformed in the aquatic environment by halophilic archaea, bacteria, algae, and fungi. Furthermore, the removal mechanisms of PAH in the marine/aquatic environment are discussed in terms of the recent systemic advancements in microbial degradation methodologies. The review outputs would assist in facilitating the development of new insights into PAH bioremediation.
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Affiliation(s)
- Madhumitha Vijayanand
- Department of Medical Biotechnology and Integrative Physiology, Institute of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Thandalam, Chennai, 602 105, Tamil Nadu, India
| | - Abiraami Ramakrishnan
- Department of Civil Engineering, Christian College of Engineering and Technology Oddanchatram, 624619,Dindigul District, Tamilnadu, India
| | - Ramakrishnan Subramanian
- Department of Civil Engineering, Sri Krishna College of Engineering and Technology, Kuniamuthur, Coimbatore, 641008, Tamilnadu, India
| | - Praveen Kumar Issac
- Department of Medical Biotechnology and Integrative Physiology, Institute of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Thandalam, Chennai, 602 105, Tamil Nadu, India.
| | - Mahmoud Nasr
- Environmental Engineering Department, Egypt-Japan University of Science and Technology (E-JUST), Alexandria, 21934, Egypt; Sanitary Engineering Department, Faculty of Engineering, Alexandria University, 21544, Alexandria, Egypt
| | - Kuan Shiong Khoo
- Biorefinery and Bioprocess Engineering Laboratory, Department of Chemical Engineering and Material Science, Yuan Ze University, Taoyuan, Taiwan
| | - Rajinikanth Rajagopal
- Sherbrooke Research and Development Center, Agriculture and Agri-Food Canada, 2000 College Street, Sherbrooke, QC J1M 0C8, Canada
| | - Babett Greff
- Department of Food Science, Albert Casimir Faculty at Mosonmagyaróvár, Széchenyi István University, 15-17 Lucsony Street, 9200, Mosonmagyaróvár, Hungary
| | - Nur Izyan Wan Azelee
- Institute of Bioproduct Development, Universiti Teknologi Malaysia, 81310, UTM Skudai, Johor Bahru, Johor Darul Takzim, Malaysia
| | - Byong-Hun Jeon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, South Korea
| | - Soon Woong Chang
- Department of Environmental Energy & Engineering, Kyonggi University, Suwon-si, Gyeonggi-do, 16227, South Korea
| | - Balasubramani Ravindran
- Department of Medical Biotechnology and Integrative Physiology, Institute of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Thandalam, Chennai, 602 105, Tamil Nadu, India; Department of Environmental Energy & Engineering, Kyonggi University, Suwon-si, Gyeonggi-do, 16227, South Korea.
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Silva NM, Romagnoli CL, Santiago CRDN, de Lacerda JPA, Leão SC, Digiampietri LA, Viana-Niero C. Multi-Approach Characterization of Novel Pyrene-Degrading Mycolicibacterium austroafricanum Isolates Lacking nid Genes. Microorganisms 2023; 11:1413. [PMID: 37374915 DOI: 10.3390/microorganisms11061413] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/21/2023] [Accepted: 05/22/2023] [Indexed: 06/29/2023] Open
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are chemical compounds that are widespread in the environment, arising from the incomplete combustion of organic material, as well as from human activities involving petrol exploitation, petrochemical industrial waste, gas stations, and environmental disasters. PAHs of high molecular weight, such as pyrene, have carcinogenic and mutagenic effects and are considered pollutants. The microbial degradation of PAHs occurs through the action of multiple dioxygenase genes (nid), which are localized in genomic island denominate region A, and cytochrome P450 monooxygenases genes (cyp) dispersed in the bacterial genome. This study evaluated pyrene degradation by five isolates of Mycolicibacterium austroafricanum using 2,6-dichlorophenol indophenol (DCPIP assay), gas chromatography/mass spectrometry (CG/MS), and genomic analyses. Two isolates (MYC038 and MYC040) exhibited pyrene degradation indexes of 96% and 88%, respectively, over a seven-day incubation period. Interestingly, the genomic analyses showed that the isolates do not have nid genes, which are involved in PAH biodegradation, despite their ability to degrade pyrene, suggesting that degradation may occur due to the presence of cyp150 genes, or even genes that have not yet been described. To the best of our knowledge, this is the first report of isolates without nid genes demonstrating the ability to degrade pyrene.
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Affiliation(s)
- Natalia Maria Silva
- Department of Microbiology, Immunology and Parasitology, Federal University of São Paulo, São Paulo 04023-901, Brazil
| | - Camila Lopes Romagnoli
- Department of Microbiology, Immunology and Parasitology, Federal University of São Paulo, São Paulo 04023-901, Brazil
| | | | - João Paulo Amorim de Lacerda
- Laboratory of Chemistry and Manufactured Products, Institute of Technological Research, São Paulo 05508-901, Brazil
| | - Sylvia Cardoso Leão
- Department of Microbiology, Immunology and Parasitology, Federal University of São Paulo, São Paulo 04023-901, Brazil
| | | | - Cristina Viana-Niero
- Department of Microbiology, Immunology and Parasitology, Federal University of São Paulo, São Paulo 04023-901, Brazil
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Diversity of Microbial Communities, PAHs, and Metals in Road and Leaf Dust of Functional Zones of Moscow and Murmansk. Microorganisms 2023; 11:microorganisms11020526. [PMID: 36838491 PMCID: PMC9965023 DOI: 10.3390/microorganisms11020526] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/06/2023] [Accepted: 02/15/2023] [Indexed: 02/22/2023] Open
Abstract
The impact of geographical factors, functional zoning, and biotope type on the diversity of microbial communities and chemical components in the dust of urban ecosystems was studied. Comprehensive analyses of bacterial and fungal communities, polycyclic aromatic hydrocarbons (PAHs), and metals in road and leaf dust in three urban zones of Murmansk and Moscow with contrasting anthropogenic load were conducted. We found that the structure of bacterial communities affected the functional zoning of the city, biotope type, and geographical components. Fungal communities were instead impacted only by biotope type. Our findings revealed that the structure of fungal communities was mostly impacted by PAHs whereas bacterial communities were sensitive to metals. Bacteria of the genus Sphingomonas in road and leaf dust as indicators of the ecological state of the urban ecosystems were proposed.
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Marzuki I, Rosmiati R, Mustafa A, Sahabuddin S, Tarunamulia T, Susianingsih E, Hendrajat EA, Sahrijanna A, Muslimin M, Ratnawati E, Kamariah K, Nisaa K, Herlambang S, Gunawan S, Santi IS, Isnawan BH, Kaseng ES, Septiningsih E, Asaf R, Athirah A, Basri B. Potential Utilization of Bacterial Consortium of Symbionts Marine Sponges in Removing Polyaromatic Hydrocarbons and Heavy Metals, Review. BIOLOGY 2023; 12:86. [PMID: 36671778 PMCID: PMC9855174 DOI: 10.3390/biology12010086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/17/2022] [Accepted: 12/08/2022] [Indexed: 01/07/2023]
Abstract
Toxic materials in waste generally contain several components of the global trending pollutant category, especially PAHs and heavy metals. Bioremediation technology for waste management that utilizes microorganisms (bacteria) has not been fully capable of breaking down these toxic materials into simple and environmentally friendly chemical products. This review paper examines the potential application of a consortium of marine sponge symbionts with high performance and efficiency in removing PAHs and heavy metal contaminants. The method was carried out through a review of several related research articles by the author and published by other researchers. The results of the study conclude that the development of global trending pollutant (GTP) bioremediation technology could be carried out to increase the efficiency of remediation. Several types of marine sponge symbiont bacteria, hydrocarbonoclastic (R-1), metalloclastic (R-2), and metallo-hydro-carbonoclastic (R-3), have the potential to be applied to improve waste removal performance. A consortium of crystalline bacterial preparations is required to mobilize into GTP-exposed sites rapidly. Bacterial symbionts of marine sponges can be traced mainly to sea sponges, whose body surface is covered with mucus.
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Affiliation(s)
- Ismail Marzuki
- Department of Chemical Engineering, Fajar University, Makassar 90231, South Sulawesi, Indonesia
| | - Rosmiati Rosmiati
- Research Center for Fishery National Research and Innovation Agency, Cibinong 16911, West Java, Indonesia
| | - Akhmad Mustafa
- Research Center for Fishery National Research and Innovation Agency, Cibinong 16911, West Java, Indonesia
| | - Sahabuddin Sahabuddin
- Research Center for Fishery National Research and Innovation Agency, Cibinong 16911, West Java, Indonesia
| | - Tarunamulia Tarunamulia
- Research Center for Fishery National Research and Innovation Agency, Cibinong 16911, West Java, Indonesia
| | - Endang Susianingsih
- Research Center for Fishery National Research and Innovation Agency, Cibinong 16911, West Java, Indonesia
| | - Erfan Andi Hendrajat
- Research Center for Fishery National Research and Innovation Agency, Cibinong 16911, West Java, Indonesia
| | - Andi Sahrijanna
- Research Center for Fishery National Research and Innovation Agency, Cibinong 16911, West Java, Indonesia
| | - Muslimin Muslimin
- Research Center for Fishery National Research and Innovation Agency, Cibinong 16911, West Java, Indonesia
| | - Erna Ratnawati
- Research Center for Fishery National Research and Innovation Agency, Cibinong 16911, West Java, Indonesia
| | - Kamariah Kamariah
- Research Center for Fishery National Research and Innovation Agency, Cibinong 16911, West Java, Indonesia
| | - Khairun Nisaa
- Research Center for Fishery National Research and Innovation Agency, Cibinong 16911, West Java, Indonesia
| | - Susila Herlambang
- Soil Science Departement of Agriculture Faculty Universitas Pembangunan Nasional Veteran, Yogyakarta 55283, DI Yogyakarta, Indonesia
| | - Sri Gunawan
- Department of Agrotechnology, Institut Pertanian Stiper, Yogyakarta 55283, DI Yogyakarta, Indonesia
| | - Idum Satia Santi
- Department of Agrotechnology, Institut Pertanian Stiper, Yogyakarta 55283, DI Yogyakarta, Indonesia
| | - Bambang Heri Isnawan
- Department of Agrotechnology, Universitas Muhammadiyah Yogyakarta, Bantul 55183, DI Yogyakarta, Indonesia
| | - Ernawati Syahruddin Kaseng
- Agricultural Technology Education Department, Faculty of Engineering, Makassar State University, Makassar 90222, South Sulawesi, Indonesia
| | - Early Septiningsih
- Research Center for Conservation of Marine and Inland Water Resources, National Research and Innovation Agency, Cibinong 16911, West Java, Indonesia
| | - Ruzkiah Asaf
- Research Center for Conservation of Marine and Inland Water Resources, National Research and Innovation Agency, Cibinong 16911, West Java, Indonesia
| | - Admi Athirah
- Research Center for Conservation of Marine and Inland Water Resources, National Research and Innovation Agency, Cibinong 16911, West Java, Indonesia
| | - Basri Basri
- Institute of Health Science (STIK), Makassar 90231, South Sulawesi, Indonesia
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10
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Srivastava A, Verma D. Ganga River sediments of India predominate with aerobic and chemo-heterotrophic bacteria majorly engaged in the degradation of xenobiotic compounds. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:752-772. [PMID: 35904740 DOI: 10.1007/s11356-022-22198-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 07/21/2022] [Indexed: 06/15/2023]
Abstract
Sediment provides a stagnant habitat to microbes that accumulate organic matter and other industrial pollutants from the upper layer of the water. The sediment of the Ganga River of India is overlooked for exploring the bacterial diversity despite their taxon richness over the water counterpart. To enrich the limited information on the bacterial diversity of the Ganga River sediment, the present study was planned that relies on amplicon-based bacterial diversity of the Ganga River sediment by using bacterial-specific 16S hypervariable region (V3-V4). The Illumina MiSeq2500 platform generated 1,769,226 raw reads from the metagenomes of various samples obtained from ten sites in five major cities of Uttar Pradesh and Uttarakhand regions traversing the Ganga River. Taxonomy level analysis assigned 58 phyla, 366 order, and 715 genera of bacterial type. The high values of various diversity indices (Chao1, Shannon, and Simpson) in Kanpur sediment indicate the high bacterial richness compared to the Rishikesh sediment. However, several other ecological parameters (Shannon index, Simpson index, enspie _vector, and Faith_pd) were comparatively higher in Rishikesh sediment which is a comparatively less disturbed region by human activities over the other sediments samples studied here. Ganga River sediment dominates with Gram-negative, chemo-heterotrophic, and aerobic bacteria that chiefly belong to Proteobacteria, Acidobacteria, Chloroflexi, and Bacteroidota. The abundance of Nitrospira, Hydrogenophaga, Thauera, Vicinamibacteraceae, and Latescibacterota in the Ganga River sediment could be considered as the ecological indicators that find a significant role in the degradation of xenobiotic compounds. The PICRUSt-based analysis showed that ~ 35% of genes were involved in benzoate and aminobenzoate degradation where a significant portion of genes belong to nitrotoluene degradation (14%). Thus, the study uncovers a new perspective in the lineage of bacterial communities and their functional characterization of the Ganga River sediment.
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Affiliation(s)
- Ankita Srivastava
- Department of Environmental Microbiology, Babasaheb Bhimrao Ambedkar University, Lucknow, India, 226025
| | - Digvijay Verma
- Department of Environmental Microbiology, Babasaheb Bhimrao Ambedkar University, Lucknow, India, 226025.
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11
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Li H, Wang X, Peng S, Lai Z, Mai Y. Seasonal variation of temperature affects HMW-PAH accumulation in fishery species by bacterially mediated LMW-PAH degradation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 853:158617. [PMID: 36084776 DOI: 10.1016/j.scitotenv.2022.158617] [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: 08/17/2022] [Revised: 09/03/2022] [Accepted: 09/04/2022] [Indexed: 06/15/2023]
Abstract
Currently, the specific mechanism generating seasonal variation in polycyclic aromatic hydrocarbons (PAHs) via bacterial biodegradation remains unclear, and whether this alteration affects PAH bioaccumulation is unknown. Therefore, we performed a study between 2015 and 2020 to investigate the effects of seasonal variation on bacterial communities and PAH bioaccumulation in the Pearl River Estuary. Significantly high PAH concentrations in both aquatic and fishery species were determined in dry seasons (the mean ∑16PAH concentration: water, 37.24 ng/L (2015), 30.83 ng/L (2020); fish, 51.01 ng/L (2015) and 72.60 ng/L (2020)) compared to wet seasons (the mean ∑16PAH concentration: water, 22.38 ng/L (2015), 19.40 ng/L(2020); fish, 25.28 ng/L (2015) and 32.59 ng/L (2020)). Distinct differences in taxonomic and functional composition of bacterial communities related to biodegradation of low molecular weight PAHs (LMW-PAHs) were observed between seasons, and the concentrations of PAHs were negatively correlated with seasonal variation in temperature. Temperature-related specific bacterial taxa (e.g., Stenotrophomonas) directly or indirectly participated in LMW-PAH degradation via encoding PAH degradation enzymes (e.g., protocatechuate 4,5-dioxygenase) that subsequently led to bioaccumulation of high molecular weight PAHs (HMW-PAHs) in wild and fishery species due to LMW-PAHs in the water. Based on this alteration, the ecological risk posed by PAHs decreased in wet seasons, and an unbalanced spatio-temporal distribution of PAHs was observed in this estuary. These results suggest that seasonal variation of temperature affects HMW-PAH accumulation in fishery species via bacterially mediated LMW-PAH biodegradation.
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Affiliation(s)
- Haiyan Li
- Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China
| | - Xuesong Wang
- Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology, Guangdong Provincial Engineering Research Center for Ambient Mass Spectrometry, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou 510070, China.
| | - Songyao Peng
- Pearl River Water Resources Research Institute, Guangzhou 510611, China
| | - Zini Lai
- Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China
| | - Yongzhan Mai
- Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China.
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12
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Lu Q, Sun X, Jiang Z, Cui Y, Li X, Cui J. Effects of Comamonas testosteroni on dissipation of polycyclic aromatic hydrocarbons and the response of endogenous bacteria for soil bioremediation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:82351-82364. [PMID: 35750914 DOI: 10.1007/s11356-022-21497-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 06/12/2022] [Indexed: 06/15/2023]
Abstract
Bioremediation is a promising method of treating polycyclic aromatic hydrocarbons (PAHs) in contaminated soil; however, the understanding of the efficiency and the way of microbial inoculants work in complex soil environments is limited. Comamonas testosteroni (Ct) strains could efficiently degrade PAHs, especially naphthalene (Nap) and phenanthrene (Phe). This study aimed to explore the functional role of Ct in soil indigenous microorganisms and analyze the effect of Ct addition on PAHs concentration in PAH-contaminated soil. The results showed that inoculation with Ct degraded naphthalene (Nap), phenanthrene (Phe), and benzo [α] pyrene (BaP) significantly; the degradation rates were 63.38%, 81.18%, and 37.98% on day 25, respectively, suggesting that the low molecular weights of Nap and Phe were more easily degraded by microorganisms than those of BaP. We speculated that BaP and Phe might be converted into Nap for further degradation, which is the main reason for the low degradation rate of Nap detected after 10-25 days. Network analysis showed that inoculation with Ct significantly increased bacteria community abundance closely related to PAHs. Structural equation models confirmed that Steroidobacter, as functional bacteria, could affect the degradation of Nap and BaP. Inoculated Ct effectively enhanced the synergy among indigenous bacteria to degrade PAHs. This finding will help understand the function of inoculated Ct strains in PAH-contaminated soil at the laboratory level.
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Affiliation(s)
- Qian Lu
- College of Life Sciences and Technology, Harbin Normal University, Harbin, 150025, China
| | - Xueting Sun
- College of Life Sciences and Technology, Harbin Normal University, Harbin, 150025, China
| | - Ziwei Jiang
- College of Life Sciences and Technology, Harbin Normal University, Harbin, 150025, China
| | - Yue Cui
- College of Life Sciences and Technology, Harbin Normal University, Harbin, 150025, China
| | - Xin Li
- College of Life Sciences and Technology, Harbin Normal University, Harbin, 150025, China
| | - Jizhe Cui
- College of Life Sciences and Technology, Harbin Normal University, Harbin, 150025, China.
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13
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Li S, Shen W, Lian S, Wu Y, Qu Y, Deng Y. DARHD: A sequence database for aromatic ring-hydroxylating dioxygenase analysis and primer evaluation. JOURNAL OF HAZARDOUS MATERIALS 2022; 436:129230. [PMID: 35739750 DOI: 10.1016/j.jhazmat.2022.129230] [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: 02/20/2022] [Revised: 05/19/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
Biodegradation of aromatic compounds is ubiquitous in the environment and important for controlling organic pollutants. Aromatic ring-hydroxylating dioxygenases (ARHDs) are responsible for the first and rate-limiting step of aerobic biodegradation of aromatic compounds. The ARHD α subunit is a good biomarker for studying functional microorganisms in the environment, however their diversity and corresponding primer coverage are unclear, both of which require a comprehensive sequence database for the ARHD α subunit. Here amino acid sequences of the ARHD α subunit were collected, and a total of 103 sequences were selected as seed sequences that were distributed in 72 bacterial genera with 34 gene names. Based on both homolog search and keyword confirmation against the GenBank, a sequence database of ARHD (DARHD) has been established and 6367 highly credible sequences were retrieved. DARHD contained 407 bacterial genera capable of degrading 38 aromatic substrates, and intricate relationships among the gene name, aromatic substrate and microbial taxa were observed. Thereafter, a total of 136 pairs of primers were collected and assessed. Results showed coverages of most published primers were low. Our research provides new insights for understanding the diversity of ARHD α subunit, and gives guidance on the design and application of primers in the future.
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Affiliation(s)
- Shuzhen Li
- CAS Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Aquatic EcoHealth Group, Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Wenli Shen
- Institute for Marine Science and Technology, Shandong University, Qingdao 266237, China
| | - Shengyang Lian
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) and Dalian POCT Laboratory, School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Yueni Wu
- CAS Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yuanyuan Qu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) and Dalian POCT Laboratory, School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Ye Deng
- CAS Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Institute for Marine Science and Technology, Shandong University, Qingdao 266237, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.
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14
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Romdhani I, De Marco G, Cappello T, Ibala S, Zitouni N, Boughattas I, Banni M. Impact of environmental microplastics alone and mixed with benzo[a]pyrene on cellular and molecular responses of Mytilus galloprovincialis. JOURNAL OF HAZARDOUS MATERIALS 2022; 435:128952. [PMID: 35472537 DOI: 10.1016/j.jhazmat.2022.128952] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 04/06/2022] [Accepted: 04/15/2022] [Indexed: 06/14/2023]
Abstract
The hazard of microplastic (MP) pollution in marine environments is a current concern. However, the effects of environmental microplastics combined with other pollutants are still poorly investigated. Herein, impact of ecologically relevant concentrations of environmental MP alone (50 µg/L) or combined with B[a]P (1 µg/L) was assessed in mussel Mytilus galloprovincialis after a short-term exposure (1 and 3 days) to environmental MP collected from a north-Mediterranean beach. Raman Microspectroscopy (RMS) revealed bioaccumulation in mussel hemolymph of MP, characterized by polyethylene (PE), polyethylene terephthalate (PET), polypropylene (PP), polyethylene vinyl acetate (PEVA) and high-density polyethylene (HDPE), with abundance of MP sized 1.22-0.45 µm. An increase of B[a]P was detected in mussels after 3-day exposure, particularly when mixed with MP. Both contaminants induced cytotoxic and genotoxic effects on hemocytes as determined by lysosomal membrane stability (LMS), micronuclei frequency (FMN), and DNA fragmentation rate by terminal dUTP nick-end labeling (TUNEL). About apoptosis/DNA repair processes, P53 and DNA-ligase increased at 1-day exposure in all conditions, whereas after 3 days increase of bax, Cas-3 and P53 and decrease of Bcl-2 and DNA-ligase were revealed, suggesting a shift towards a cell apoptotic event in exposed mussels. Overall, this study provides new insights on the risk of MP for the marine ecosystem, their ability to accumulate xenobiotics and transfer them to marine biota, with potential adverse repercussion on their health status.
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Affiliation(s)
- Ilef Romdhani
- Laboratory of Agrobiodiversity and Ecotoxicology LR20AGR02, ISA, University of Sousse, Tunisia and Higher Institute of Biotechnology, ISBM, University of Monastir, Tunisia
| | - Giuseppe De Marco
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina 98166, Italy
| | - Tiziana Cappello
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina 98166, Italy.
| | - Samira Ibala
- Faculty of Medicine of Sousse, University of Sousse, Tunisia
| | - Nesrine Zitouni
- Laboratory of Agrobiodiversity and Ecotoxicology LR20AGR02, ISA, University of Sousse, Tunisia and Higher Institute of Biotechnology, ISBM, University of Monastir, Tunisia
| | - Iteb Boughattas
- Laboratory of Agrobiodiversity and Ecotoxicology LR20AGR02, ISA, University of Sousse, Tunisia and Higher Institute of Biotechnology, ISBM, University of Monastir, Tunisia
| | - Mohamed Banni
- Laboratory of Agrobiodiversity and Ecotoxicology LR20AGR02, ISA, University of Sousse, Tunisia and Higher Institute of Biotechnology, ISBM, University of Monastir, Tunisia
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15
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Jamal M, Awadasseid A, Su X. Exploring potential bacterial populations for enhanced anthraquinone dyes biodegradation: a critical review. Biotechnol Lett 2022; 44:1011-1025. [DOI: 10.1007/s10529-022-03279-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 07/04/2022] [Indexed: 11/02/2022]
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16
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Ibrar M, Khan S, Hasan F, Yang X. Biosurfactants and chemotaxis interplay in microbial consortium-based hydrocarbons degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:24391-24410. [PMID: 35061186 DOI: 10.1007/s11356-022-18492-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 12/30/2021] [Indexed: 06/14/2023]
Abstract
Hydrocarbons are routinely detected at low concentrations, despite the degrading metabolic potential of ubiquitous microorganisms. The potential drivers of hydrocarbons persistence are lower bioavailability and mass transfer limitation. Recently, bioremediation strategies have developed rapidly, but still, the solution is not resilient. Biosurfactants, known to increase bioavailability and augment biodegradation, are tightly linked to bacterial surface motility and chemotaxis, while chemotaxis help bacteria to locate aromatic compounds and increase the mass transfer. Harassing the biosurfactant production and chemotaxis properties of degrading microorganisms could be a possible approach for the complete degradation of hydrocarbons. This review provides an overview of interplay between biosurfactants and chemotaxis in bioremediation. Besides, we discuss the chemical surfactants and biosurfactant-mediated biodegradation by microbial consortium.
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Affiliation(s)
- Muhammad Ibrar
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Key Laboratory of Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, People's Republic of China
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
- Shenzhen Key Laboratory of Marine Biological Resources and Ecology Environment, College of Life Sciences and Oceanography, Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, 518055, People's Republic of China
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074, Hubei, People's Republic of China
| | - Salman Khan
- State Key Laboratory of Grassland Agro-Ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
| | - Fariha Hasan
- Department of Microbiology, Applied, Environmental and Geomicrobiology Laboratory, Quaid-I-Azam University, Islamabad, Pakistan
| | - Xuewei Yang
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Key Laboratory of Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, People's Republic of China.
- Shenzhen Key Laboratory of Marine Biological Resources and Ecology Environment, College of Life Sciences and Oceanography, Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, 518055, People's Republic of China.
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17
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Dong Y, Wu S, Fan H, Li X, Li Y, Xu S, Bai Z, Zhuang X. Ecological selection of bacterial taxa with larger genome sizes in response to polycyclic aromatic hydrocarbons stress. J Environ Sci (China) 2022; 112:82-93. [PMID: 34955225 DOI: 10.1016/j.jes.2021.04.027] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 04/24/2021] [Accepted: 04/25/2021] [Indexed: 05/15/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous priority pollutants that cause great damage to the natural environment and health. Average genome size in a community is critical for shedding light on microbiome's functional response to pollution stress within an environment. Here, microcosms under different concentrations were performed to evaluate the selection of PAHs stress on the average genome size in a community. We found the distinct communities of significantly larger genome size with the increase of PAHs concentration gradients in soils, and consistent trends were discovered in soils at different latitudes. The abundance of Proteobacteria and Deinococcus-Thermus with relatively larger genomes increased along with PAHs stress and well adapted to polluted environments. In contrast, the abundance of Patescibacteria with a highly streamlined and smaller genome decreased, implying complex interactions between environmental selection and functional fitness resulted in bacteria with larger genomes becoming more abundant. Moreover, we confirmed the increased capacity for horizontal transfer of degrading genes between communities by showing an increased connection number per node positively related to the nidA gene along the concentration gradients in the co-occurrence network. Our findings suggest PAHs tend to select bacterial taxa with larger genome sizes, with significant consequences for community stability and potential biodegradation strategies.
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Affiliation(s)
- Yuzhu Dong
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shanghua Wu
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haonan Fan
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xianglong Li
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yijing Li
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Sino-Danish Center, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shengjun Xu
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhihui Bai
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xuliang Zhuang
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.
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18
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Alao MB, Adebayo EA. Fungi as veritable tool in bioremediation of polycyclic aromatic hydrocarbons‐polluted wastewater. J Basic Microbiol 2022; 62:223-244. [DOI: 10.1002/jobm.202100376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 12/20/2021] [Accepted: 12/23/2021] [Indexed: 11/10/2022]
Affiliation(s)
- Micheal B. Alao
- Microbiology and Biotechnology Laboratory, Department of Pure and Applied Biology Ladoke Akintola University of Technology Ogbomoso Nigeria
| | - Elijah A. Adebayo
- Microbiology and Biotechnology Laboratory, Department of Pure and Applied Biology Ladoke Akintola University of Technology Ogbomoso Nigeria
- Microbiology Unit, Department of Pure and Applied Biology Ladoke Akintola University of Technology Ogbomoso Nigeria
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19
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Zang S, Zhao Q, Gomez MA, Luo X, Li B, Wang X. Removal Mechanisms of Phenanthrene and Benzo(a)pyrene from Wastewater by Combining Bacillus subtilis with Ferrate. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2022. [DOI: 10.1134/s0036024421150267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Roszak M, Jabłońska J, Stachurska X, Dubrowska K, Kajdanowicz J, Gołębiewska M, Kiepas-Kokot A, Osińska B, Augustyniak A, Karakulska J. Development of an Autochthonous Microbial Consortium for Enhanced Bioremediation of PAH-Contaminated Soil. Int J Mol Sci 2021; 22:13469. [PMID: 34948267 PMCID: PMC8708151 DOI: 10.3390/ijms222413469] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 12/08/2021] [Accepted: 12/13/2021] [Indexed: 11/26/2022] Open
Abstract
The main objectives of this study were to isolate bacteria from soil chronically contaminated with polycyclic aromatic hydrocarbons (PAHs), develop an autochthonous microbial consortium, and evaluate its ability to degrade PAHs in their native contaminated soil. Strains with the best bioremediation potential were selected during the multi-stage isolation process. Moreover, to choose bacteria with the highest bioremediation potential, the presence of PAH-degrading genes (pahE) was confirmed and the following tests were performed: tolerance to heavy metals, antagonistic behavior, phytotoxicity, and antimicrobial susceptibility. In vitro degradation of hydrocarbons led to the reduction of the total PAH content by 93.5% after the first day of incubation and by 99.22% after the eighth day. Bioremediation experiment conducted in situ in the contaminated area resulted in the average reduction of the total PAH concentration by 33.3% after 5 months and by over 72% after 13 months, compared to the concentration recorded before the intervention. Therefore, this study implicates that the development of an autochthonous microbial consortium isolated from long-term PAH-contaminated soil has the potential to enhance the bioremediation process.
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Affiliation(s)
- Marta Roszak
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Al. Piastów 45, 70-311 Szczecin, Poland; (M.R.); (J.J.); (X.S.); (K.D.); (J.K.); (M.G.); (J.K.)
- Department of Laboratory Medicine, Pomeranian Medical University in Szczecin, Al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Joanna Jabłońska
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Al. Piastów 45, 70-311 Szczecin, Poland; (M.R.); (J.J.); (X.S.); (K.D.); (J.K.); (M.G.); (J.K.)
- Department of Chemical and Process Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Al. Piastów 42, 71-065 Szczecin, Poland
| | - Xymena Stachurska
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Al. Piastów 45, 70-311 Szczecin, Poland; (M.R.); (J.J.); (X.S.); (K.D.); (J.K.); (M.G.); (J.K.)
| | - Kamila Dubrowska
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Al. Piastów 45, 70-311 Szczecin, Poland; (M.R.); (J.J.); (X.S.); (K.D.); (J.K.); (M.G.); (J.K.)
- Department of Chemical and Process Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Al. Piastów 42, 71-065 Szczecin, Poland
| | - Justyna Kajdanowicz
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Al. Piastów 45, 70-311 Szczecin, Poland; (M.R.); (J.J.); (X.S.); (K.D.); (J.K.); (M.G.); (J.K.)
| | - Marta Gołębiewska
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Al. Piastów 45, 70-311 Szczecin, Poland; (M.R.); (J.J.); (X.S.); (K.D.); (J.K.); (M.G.); (J.K.)
| | - Anna Kiepas-Kokot
- Department of Environmental Management, Faculty of Environmental Management and Agriculture, West Pomeranian University of Technology in Szczecin, ul. Słowackiego 17, 71-434 Szczecin, Poland;
| | - Beata Osińska
- Research Institute of Animal Production PIB Kołbacz Sp. z o.o., Warcisława Street 1, 74-106 Kołbacz, Poland;
| | - Adrian Augustyniak
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Al. Piastów 45, 70-311 Szczecin, Poland; (M.R.); (J.J.); (X.S.); (K.D.); (J.K.); (M.G.); (J.K.)
- Department of Chemical and Process Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Al. Piastów 42, 71-065 Szczecin, Poland
- Chair of Building Materials and Construction Chemistry, Technische Universität Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany
| | - Jolanta Karakulska
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Al. Piastów 45, 70-311 Szczecin, Poland; (M.R.); (J.J.); (X.S.); (K.D.); (J.K.); (M.G.); (J.K.)
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21
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Méndez García M, García de Llasera MP. A review on the enzymes and metabolites identified by mass spectrometry from bacteria and microalgae involved in the degradation of high molecular weight PAHs. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 797:149035. [PMID: 34303250 DOI: 10.1016/j.scitotenv.2021.149035] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 07/09/2021] [Accepted: 07/10/2021] [Indexed: 06/13/2023]
Abstract
High molecular weight PAHs (HMW PAHs) are dangerous pollutants widely distributed in the environment. The use of microorganisms represents an important tool for HMW PAHs bioremediation, so, the understanding of their biochemical pathways facilitates the development of biodegradation strategies. For this reason, the potential role of species of microalgae, bacteria, and microalga-bacteria consortia in the degradation of HMW PAHs is discussed. The identification of their metabolites, mostly by GC-MS and LC-MS, allows a better approach to the enzymes involved in the key steps of the metabolic pathways of HMW PAHs biodegradation. So, this review intends to address the proteomic research on enzyme activities and their involvement in regulating essential biochemical functions that help bacteria and microalgae in the biodegradation processes of HMW PAHs. It is noteworthy that, given that to the best of our knowledge, this is the first review focused on the mass spectrometry identification of the HMW PAHs metabolites; whereby and due to the great concern of the presence of HMW PAHs in the environment, this material could help the urgency of developing new bioremediation methods. The elucidation of the metabolic pathways of persistent pollutant degrading microorganisms should lead to a better knowledge of the enzymes involved, which could contribute to a very ecological route to the control of environmental contamination in the future.
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Affiliation(s)
- Manuel Méndez García
- Facultad de Química, Departamento de Química Analítica, Universidad Nacional Autónoma de México, Ciudad Universitaria, México, D. F. 04510, Mexico
| | - Martha Patricia García de Llasera
- Facultad de Química, Departamento de Química Analítica, Universidad Nacional Autónoma de México, Ciudad Universitaria, México, D. F. 04510, Mexico.
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22
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Ahmad M, Ling J, Yang Q, Sajjad W, Zhou W, Yin J, Dong J. Insight into Bacterial Community Responses to Polycyclic Aromatic Hydrocarbons and the Degradation Potentials of Three Bacterial Isolates in Seagrass Halophila ovalis Sediments. Curr Microbiol 2021; 78:4084-4097. [PMID: 34687349 DOI: 10.1007/s00284-021-02670-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 09/26/2021] [Indexed: 11/28/2022]
Abstract
Seagrass meadows constitute a prestigious ecosystem in the marine environment, providing valuable ecological and commercial services. Among the various causes, pollutions are considered one of the significant reasons for seagrass decline globally. This study investigates the impacts of polycyclic aromatic hydrocarbons mixture (pyrene, phenanthrene, and fluorene) on bacterial communities in Halophila ovalis sediments. The seagrass sediment bacterial microbiome was evaluated in a batch culture experiment by Illumina MiSeq sequencing. Culture-able bacterial strains were isolated and characterized by 16S rRNA gene sequencing. The results demonstrated an excellent alpha diversity in the original sediments with a Shannon index of (8.078) compared to the subsequent control group (5.908) and PAH-treated group (PAH-T) (4.916). Three phyla, Proteobacteria, Firmicutes, and Bacteroidetes, were detected in high abundance in the control and PAH-T groups. However, a significant difference (P < 0.05) was observed at the genus level between control and PAH-T group bacterial consortia. Pseudomonas, Mycobacterium, Idiomarina, Hydrogenophaga, Alteromonas, Sphingobacterium, and several others were highly abundant in PAH-T groups. Most of the culture-able isolates recovered in this study showed the closest resemblance to previously identified hydrocarbon-degrading bacteria. Among the three strains, Mix-16 (Citricoccus yambaruensis) and Mix-20 (Gordonia rubripertincta) showed a higher degradation of PAHs than Mix-19 (Isoptericola halotolerans) in the monoculture experiment. The most increased degradation of PAHs was recorded in the co-culture experiment. The present work revealed that PAHs could act as environmental stress and can influence bacterial community succession. Moreover, the co-culture strategy significantly enhanced the biodegradation of PAHs.
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Affiliation(s)
- Manzoor Ahmad
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China.,Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China.,Key Laboratory of Tropical Marine Biotechnology of Hainan Province, Sanya Institute of Oceanology, SCSIO, Sanya, 572000, China.,Sanya National Marine Ecosystem Research Station, Tropical Marine Biological Research Station in Hainan, Chinese Academy of Sciences, Sanya, 572000, China.,Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, 511458, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Juan Ling
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China. .,Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China. .,Key Laboratory of Tropical Marine Biotechnology of Hainan Province, Sanya Institute of Oceanology, SCSIO, Sanya, 572000, China. .,Sanya National Marine Ecosystem Research Station, Tropical Marine Biological Research Station in Hainan, Chinese Academy of Sciences, Sanya, 572000, China. .,Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, 511458, China.
| | - Qingsong Yang
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China.,Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China.,Key Laboratory of Tropical Marine Biotechnology of Hainan Province, Sanya Institute of Oceanology, SCSIO, Sanya, 572000, China.,Sanya National Marine Ecosystem Research Station, Tropical Marine Biological Research Station in Hainan, Chinese Academy of Sciences, Sanya, 572000, China.,Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, 511458, China
| | - Wasim Sajjad
- Department of Biological Sciences, National University of Medical Sciences, Rawalpindi, 46000, Pakistan
| | - Weiguo Zhou
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China.,Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China.,Key Laboratory of Tropical Marine Biotechnology of Hainan Province, Sanya Institute of Oceanology, SCSIO, Sanya, 572000, China.,Sanya National Marine Ecosystem Research Station, Tropical Marine Biological Research Station in Hainan, Chinese Academy of Sciences, Sanya, 572000, China.,Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, 511458, China
| | - Jianping Yin
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China.,Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China.,Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, 511458, China
| | - Junde Dong
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China. .,Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China. .,Key Laboratory of Tropical Marine Biotechnology of Hainan Province, Sanya Institute of Oceanology, SCSIO, Sanya, 572000, China. .,Sanya National Marine Ecosystem Research Station, Tropical Marine Biological Research Station in Hainan, Chinese Academy of Sciences, Sanya, 572000, China. .,Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, 511458, China.
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23
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Liu Y, Huang YH, Lü H, Li H, Li YW, Mo CH, Cai QY. Persistent contamination of polycyclic aromatic hydrocarbons (PAHs) and phthalates linked to the shift of microbial function in urban river sediments. JOURNAL OF HAZARDOUS MATERIALS 2021; 414:125416. [PMID: 33662795 DOI: 10.1016/j.jhazmat.2021.125416] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 02/10/2021] [Accepted: 02/10/2021] [Indexed: 06/12/2023]
Abstract
Urban rivers were heavily polluted, which resulted in blackening and odorization (i.e., black-odor rivers). Nevertheless, very limited information is available on sediment contamination levels of black-odor rivers and their linkage to the patterns of microbial functional genes. This study investigated distribution of polycyclic aromatic hydrocarbons (PAHs) and phthalates (PAEs) and their linkages to bacterial community and related functional genes in river sediments. The results demonstrate that higher average levels of ∑16PAHs (1405 μg/kg, dry weight) and ∑6PAEs (7120 μg/kg) were observed in sediments from heavy black-odor rivers than the moderate ones (∑16PAHs: 462 μg/kg; ∑6PAEs: 2470 μg/kg). The taxon composition and diversities of bacterial community in sediments varied with significantly lower diversity indices in heavy black-odor rivers than moderate ones. Sediments from heavy black-odor rivers enriched certain PAH and PAE degrading bacteria and genes. Unfortunately, PAH and PAE contamination demonstrated negative influences on nitrogen and phosphorus metabolism related bacteria and function genes but significant positive influences on certain sulfur metabolism related bacterial taxa and sulfur reduction gene, which might cause nitrogen and phosphorus accumulation and black-odor phenomenon in heavy black-odor rivers. This study highlights PAH and PAE contamination in urban rivers may shift bacterial community and detrimentally affect their ecological functions.
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Affiliation(s)
- Yue Liu
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Yu-Hong Huang
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Huixiong Lü
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Hui Li
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Yan-Wen Li
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Ce-Hui Mo
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Quan-Ying Cai
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China.
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24
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Gago JF, Viver T, Urdiain M, Pastor S, Kämpfer P, Ferreira E, Rossello-Mora R. Description of three new Alteromonas species Alteromonas antoniana sp. nov., Alteromonas lipotrueae sp. nov. and Alteromonas lipotrueiana sp. nov. isolated from marine environments, and proposal for reclassification of the genus Salinimonas as Alteromonas. Syst Appl Microbiol 2021; 44:126226. [PMID: 34171620 DOI: 10.1016/j.syapm.2021.126226] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/02/2021] [Accepted: 06/07/2021] [Indexed: 11/26/2022]
Abstract
In the course of a bioprospective study of marine prokaryotes for cosmetic purposes, four strains, MD_567T, MD_652T, MD_674 and PS_109T, were isolated that 16S rRNA gene affiliation indicated could represent three new species within the family Alteromonadaceae. A thorough phylogenetic, genomic and phenotypic taxonomic study confirmed that the isolates could be classified as three new taxa for which we propose the names Alteromonas antoniana sp. nov., Alteromonas lipotrueae sp. nov. and Alteromonas lipotrueiana sp. nov. In addition, the consistent monophyletic nature of the members of the genera Alteromonas and Salinimonas showed that both taxa should be unified, and therefore we also propose the reclassification of the genus Salinimonas within Alteromonas, as well as new combinations for the species of the former. As the specific epithets profundi and sediminis are already used for Alteromonas species, we created the nomina nova "Alteromonas alteriprofundi" nom. nov. and Alteromonas alterisediminis nom. nov. to accommodate the new names for "Salinimonas profundi" and Salinimonas sediminis. Whole genome comparisons also allowed us to detect the unexpected codification of aromatic hydrocarbon biodegradative compounds, such as benzoate and catechol, whose activity was then demonstrated phenotypically. Finally, the high genomic identity between the type strains of Alteromonas stellipolaris and Alteromonas addita indicated that the latter is a junior heterotypic synonym of Alteromonas stellipolaris.
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Affiliation(s)
- Juan F Gago
- Marine Microbiology Group, Department of Animal and Microbial Biodiversity, Mediterranean Institute for Advanced Studies (IMEDEA, CSIC-UIB), Esporles, Spain; Lipotrue S.L., Barcelona, Spain.
| | - Tomeu Viver
- Marine Microbiology Group, Department of Animal and Microbial Biodiversity, Mediterranean Institute for Advanced Studies (IMEDEA, CSIC-UIB), Esporles, Spain
| | - Mercedes Urdiain
- Marine Microbiology Group, Department of Animal and Microbial Biodiversity, Mediterranean Institute for Advanced Studies (IMEDEA, CSIC-UIB), Esporles, Spain
| | | | - Peter Kämpfer
- Institute of Applied Microbiology (IFZ), Justus Liebig Universität Giessen, Giessen, Germany
| | | | - Ramon Rossello-Mora
- Marine Microbiology Group, Department of Animal and Microbial Biodiversity, Mediterranean Institute for Advanced Studies (IMEDEA, CSIC-UIB), Esporles, Spain
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25
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Drevinskas T, Maruška A, Bimbiraitė-Survilienė K, Du̅da G, Stankevičius M, Tiso N, Mickienė R, Pedišius V, Levišauskas D, Kaškonienė V, Ragažinskienė O, Grigiškis S, Donati E, Zacchini M. Mathematical Model Coupled to Neural Networks Calculates the Extraction Recovery of Polycyclic Aromatic Hydrocarbons in Problematic Matrix. ACS OMEGA 2021; 6:14612-14620. [PMID: 34124484 PMCID: PMC8190882 DOI: 10.1021/acsomega.1c01737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/10/2021] [Indexed: 06/12/2023]
Abstract
Unknown extraction recovery from solid matrix samples leads to meaningless chemical analysis results. It cannot always be determined, and it depends on the complexity of the matrix and properties of the extracted substances. This paper combines a mathematical model with the machine learning method-neural networks that predict liquid extraction recovery from solid matrices. The prediction of the three-stage extraction recovery of polycyclic aromatic hydrocarbons from a wooden railway sleeper matrix is demonstrated. Calculation of the extraction recovery requires the extract's volume to be measured and the polycyclic aromatic hydrocarbons' concentration to be determined for each stage. These data are used to calculate the input values for a neural network model. Lowest mean-squared error (0.014) and smallest retraining relative standard deviation (20.7%) were achieved with the neural network setup 6:5:5:4:1 (six inputs, three hidden layers with five, five, and four neurons in a layer, and one output). To train such a neural network, it took less than 8000 steps-less than a second--using an average-performance laptop. The relative standard deviation of the extraction recovery predictions ranged between 1.13 and 5.15%. The three-stage recovery of the extracted dry sample showed 104% of three different polycyclic aromatic hydrocarbons. The extracted wet sample recovery was 71, 98, and 55% for phenanthrene, anthracene, and pyrene, respectively. This method is applicable in the environmental, food processing, pharmaceutical, biochemical, biotechnology, and space research areas where extraction should be performed autonomously without human interference.
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Affiliation(s)
- Tomas Drevinskas
- Instrumental
Analysis Open Access Centre, Faculty of Natural Sciences, Vytautas Magnus University, Vileikos 8, LT-44404 Kaunas, Lithuania
| | - Audrius Maruška
- Instrumental
Analysis Open Access Centre, Faculty of Natural Sciences, Vytautas Magnus University, Vileikos 8, LT-44404 Kaunas, Lithuania
| | - Kristina Bimbiraitė-Survilienė
- Instrumental
Analysis Open Access Centre, Faculty of Natural Sciences, Vytautas Magnus University, Vileikos 8, LT-44404 Kaunas, Lithuania
| | - Gediminas Du̅da
- Instrumental
Analysis Open Access Centre, Faculty of Natural Sciences, Vytautas Magnus University, Vileikos 8, LT-44404 Kaunas, Lithuania
| | - Mantas Stankevičius
- Instrumental
Analysis Open Access Centre, Faculty of Natural Sciences, Vytautas Magnus University, Vileikos 8, LT-44404 Kaunas, Lithuania
| | - Nicola Tiso
- Instrumental
Analysis Open Access Centre, Faculty of Natural Sciences, Vytautas Magnus University, Vileikos 8, LT-44404 Kaunas, Lithuania
| | - Ru̅ta Mickienė
- Instrumental
Analysis Open Access Centre, Faculty of Natural Sciences, Vytautas Magnus University, Vileikos 8, LT-44404 Kaunas, Lithuania
| | - Vilmantas Pedišius
- Instrumental
Analysis Open Access Centre, Faculty of Natural Sciences, Vytautas Magnus University, Vileikos 8, LT-44404 Kaunas, Lithuania
| | - Donatas Levišauskas
- Instrumental
Analysis Open Access Centre, Faculty of Natural Sciences, Vytautas Magnus University, Vileikos 8, LT-44404 Kaunas, Lithuania
- Process
Control Department, Kaunas University of
Technology, Studentų
St. 50, LT-51368 Kaunas, Lithuania
| | - Vilma Kaškonienė
- Instrumental
Analysis Open Access Centre, Faculty of Natural Sciences, Vytautas Magnus University, Vileikos 8, LT-44404 Kaunas, Lithuania
| | - Ona Ragažinskienė
- Kaunas
Botanical Garden of Vytautas Magnus University, Ž. E. Žilibero 6, LT-46324 Kaunas, Lithuania
| | | | - Enrica Donati
- National
Research Council, Area
della Ricerca di Roma, via Salaria Km 29, 300-00015, Monterotondo (Rome), Italy
| | - Massimo Zacchini
- National
Research Council, Area
della Ricerca di Roma, via Salaria Km 29, 300-00015, Monterotondo (Rome), Italy
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26
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Davin M, Colinet G, Fauconnier ML. Targeting the right parameters in PAH remediation studies. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 278:116857. [PMID: 33711627 DOI: 10.1016/j.envpol.2021.116857] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 02/17/2021] [Accepted: 02/28/2021] [Indexed: 06/12/2023]
Abstract
Contaminated land burdens the economy of many countries and must be dealt with. Researchers have published thousands of documents studying and developing soil and sediment remediation treatments. Amongst the targeted pollutants are the polycyclic aromatic hydrocarbons (PAHs), described as a class of persistent organic compounds, potentially harmful to ecosystems and living organisms. The present paper reviews and discusses three scientific trends that are leading current PAH-contaminated soil/sediment remediation studies and management. First, the choice of compounds that are being studied and targeted in the scientific literature is discussed, and we suggest that the classical 16 US-EPA PAH compounds might no longer be sufficient to meet current environmental challenges. Second, we discuss the choice of experimental material in remediation studies. Using bibliometric measures, we show the lack of PAH remediation trials based on co-contaminated or aged-contaminated material. Finally, the systematic use of the recently validated bioavailability measurement protocol (ISO/TS 16751) in remediation trials is discussed, and we suggest it should be implemented as a tool to improve remediation processes and management strategies.
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Affiliation(s)
- Marie Davin
- Soil-Water-Plant Exchanges, University of Liège, Gembloux Agro-Bio Tech, 2 Passage des Déportés, 5030, Gembloux, Belgium; Laboratory of Chemistry of Natural Molecules, University of Liège, Gembloux Agro-Bio Tech, 2 Passage des Déportés, 5030, Gembloux, Belgium.
| | - Gilles Colinet
- Soil-Water-Plant Exchanges, University of Liège, Gembloux Agro-Bio Tech, 2 Passage des Déportés, 5030, Gembloux, Belgium.
| | - Marie-Laure Fauconnier
- Laboratory of Chemistry of Natural Molecules, University of Liège, Gembloux Agro-Bio Tech, 2 Passage des Déportés, 5030, Gembloux, Belgium.
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27
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Segura A, Udaondo Z, Molina L. PahT regulates carbon fluxes in Novosphingobium sp. HR1a and influences its survival in soil and rhizospheres. Environ Microbiol 2021; 23:2969-2991. [PMID: 33817928 PMCID: PMC8360164 DOI: 10.1111/1462-2920.15509] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/29/2021] [Accepted: 04/03/2021] [Indexed: 01/23/2023]
Abstract
Novosphingobium sp. HR1a is a good biodegrader of PAHs and aromatic compounds, and also a good colonizer of rhizospheric environments. It was previously demonstrated that this microbe is able to co-metabolize nutrients existing in root exudates together with the PAHs. We have revealed here that PahT, a regulator of the IclR-family, regulates the central carbon fluxes favouring the degradation of PAHs and mono-aromatic compounds, the ethanol and acetate metabolism and the uptake, phosphorylation and further degradation of mono- and oligo-saccharides through a phosphoenolpyruvate transferase system (PTS). As final products of these fluxes, pyruvate and acetyl-CoA are obtained. The pahT gene is located within a genomic region containing two putative transposons that carry all the genes for PAH catabolism; PahT also regulates these genes. Furthermore, encoded in this genomic region, there are genes that are involved in the recycling of phosphoenolpyruvate, from the obtained pyruvate, which is the motor molecule involved in the saccharide uptake by the PTS system. The co-metabolism of PAHs with different carbon sources, together with the activation of the thiosulfate utilization and an alternative cytochrome oxidase system, also regulated by PahT, represents an advantage for Novosphingobium sp. HR1a to survive in rhizospheric environments.
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Affiliation(s)
- Ana Segura
- Environmental Protection Department, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, C/Profesor Albareda 1, Granada, 18008, Spain
| | - Zulema Udaondo
- Department of Biomedical Informatics, University of Arkansas for Medical Sciences, Little Rock, AR, 72205, USA
| | - Lázaro Molina
- Environmental Protection Department, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, C/Profesor Albareda 1, Granada, 18008, Spain
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28
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Medaura MC, Guivernau M, Moreno-Ventas X, Prenafeta-Boldú FX, Viñas M. Bioaugmentation of Native Fungi, an Efficient Strategy for the Bioremediation of an Aged Industrially Polluted Soil With Heavy Hydrocarbons. Front Microbiol 2021; 12:626436. [PMID: 33868189 PMCID: PMC8044458 DOI: 10.3389/fmicb.2021.626436] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 03/10/2021] [Indexed: 01/30/2023] Open
Abstract
The concurrence of structurally complex petroleum-associated contaminants at relatively high concentrations, with diverse climatic conditions and textural soil characteristics, hinders conventional bioremediation processes. Recalcitrant compounds such as high molecular weight polycyclic aromatic hydrocarbons (HMW-PAHs) and heavy alkanes commonly remain after standard soil bioremediation at concentrations above regulatory limits. The present study assessed the potential of native fungal bioaugmentation as a strategy to promote the bioremediation of an aged industrially polluted soil enriched with heavy hydrocarbon fractions. Microcosms assays were performed by means of biostimulation and bioaugmentation, by inoculating a defined consortium of six potentially hydrocarbonoclastic fungi belonging to the genera Penicillium, Ulocladium, Aspergillus, and Fusarium, which were isolated previously from the polluted soil. The biodegradation performance of fungal bioaugmentation was compared with soil biostimulation (water and nutrient addition) and with untreated soil as a control. Fungal bioaugmentation resulted in a higher biodegradation of total petroleum hydrocarbons (TPH) and of HMW-PAHs than with biostimulation. TPH (C14-C35) decreased by a 39.90 ± 1.99% in bioaugmented microcosms vs. a 24.17 ± 1.31% in biostimulated microcosms. As for the effect of fungal bioaugmentation on HMW-PAHs, the 5-ringed benzo(a)fluoranthene and benzo(a)pyrene were reduced by a 36% and 46%, respectively, while the 6-ringed benzoperylene decreased by a 28%, after 120 days of treatment. Biostimulated microcosm exhibited a significantly lower reduction of 5- and 6-ringed PAHs (8% and 5% respectively). Higher TPH and HMW-PAHs biodegradation levels in bioaugmented microcosms were also associated to a significant decrease in acute ecotoxicity (EC50) by Vibrio fischeri bioluminiscence inhibition assays. Molecular profiling and counting of viable hydrocarbon-degrading bacteria from soil microcosms revealed that fungal bioaugmentation promoted the growth of autochthonous active hydrocarbon-degrading bacteria. The implementation of such an approach to enhance hydrocarbon biodegradation should be considered as a novel bioremediation strategy for the treatment of the most recalcitrant and highly genotoxic hydrocarbons in aged industrially polluted soils.
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Affiliation(s)
| | - Miriam Guivernau
- GIRO Program, Institute of Agrifood Research and Technology (IRTA), Caldes de Montbui, Barcelona, Spain
| | - X. Moreno-Ventas
- Department of Sciences and Techniques in Water and Environment, University of Cantabria, Santander, Spain
| | | | - Marc Viñas
- GIRO Program, Institute of Agrifood Research and Technology (IRTA), Caldes de Montbui, Barcelona, Spain
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29
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Removal of benzo[a]pyrene from soil in a novel permeable electroactive well system: Optimal integration of filtration, adsorption and bioelectrochemical degradation. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117458] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Li X, Song Y, Bian Y, Gu C, Yang X, Wang F, Jiang X. Insights into the mechanisms underlying efficient Rhizodegradation of PAHs in biochar-amended soil: From microbial communities to soil metabolomics. ENVIRONMENT INTERNATIONAL 2020; 144:105995. [PMID: 32758715 DOI: 10.1016/j.envint.2020.105995] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 06/08/2020] [Accepted: 07/16/2020] [Indexed: 05/15/2023]
Abstract
The combined effects of biochar amendment and the rhizosphere on the soil metabolic microbiome during the remediation of polycyclic aromatic hydrocarbon (PAH)-contaminated soil remain unknown. In this study, we attempted to characterize a PAH degradation network by coupling the direct PAH degradation with soil carbon cycling. From microbial community structure and functions to metabolic pathways, we revealed the modulation strategies by which biochar and the rhizosphere benefited PAH degradation in soil. Firstly, some PAH degraders were enriched by biochar and the rhizosphere, and their combination promoted the cooperation among these PAH degraders. Simultaneously, under the combined effects of biochar and the rhizosphere, the functional genes participating in upstream PAH degradation were greatly upregulated. Secondly, there were strong co-occurrences between soil microbial community members and metabolites, in particular, some PAH degraders and the metabolites, such as PAH degradation products or common carbon resources, were highlighted in the networks. It shows that the overall downstream carbon metabolism of PAH degradation was also greatly upregulated by the combined effects of biochar and plant roots, showing good survival of the soil microbiome and contributing to PAH biodegradation. Taken together, both soil carbon metabolism and direct contaminant biodegradation are likely to be modulated by the combined effects of biochar and plant roots, jointly benefitting to PAH degradation by soil microbiome. Our study is the first to link PAH degradation with native carbon metabolism by coupling sequencing and soil metabolomics technology, providing new insights into a systematic understanding of PAH degradation by indigenous soil microbiome and their networks.
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Affiliation(s)
- Xiaona Li
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Nanjing 210008, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Yang Song
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Nanjing 210008, China; University of the Chinese Academy of Sciences, Beijing 100049, China.
| | - Yongrong Bian
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Nanjing 210008, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Chenggang Gu
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Nanjing 210008, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Xinglun Yang
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Nanjing 210008, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Fang Wang
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Nanjing 210008, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Xin Jiang
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Nanjing 210008, China; University of the Chinese Academy of Sciences, Beijing 100049, China
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Candan O, Candan ED. Bacterial diversity of the green turtle (Chelonia mydas) nest environment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 720:137717. [PMID: 32325608 DOI: 10.1016/j.scitotenv.2020.137717] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 01/12/2020] [Accepted: 03/02/2020] [Indexed: 06/11/2023]
Abstract
The green turtle is an endangered species that is highly sensitive to environmental pollution that can adversely affect the healthy development of eggs. Moreover, the presence of some bacteria in nests can be regarded as an indicator of the pollution level in nesting areas. In our study, nest sand and egg contents were collected from Sugözü Beaches (Turkey), in the Mediterranean. Phenotypic and genotypic identification of bacteria were carried out by using conventional phenotypic methods, 16S rRNA gene sequencing respectively. The extended-spectrum beta-lactamase presence and carbapenem resistance of bacteria isolated from egg contents were determined. This is the first report of carbapenem resistance in the eggs. All strains were evaluated in three different categories including growth promoters in agriculture and aquaculture, pathogens that are found in human and animal, and biomonitoring aquatic pollution. According to our analysis, 67 bacterial species were identified from samples. This study is the first record of Alcaligenes, Zobellella, Lysinibacillus, Sphingobacterium, Achromobacter, Acinetobacter, Alcanivorax, Ochrobactrum, Microbacterium, Rhodococcus, and Stenotrophomonas isolated from sea turtles. Pathogens detected in the bacterial flora can threaten both sea turtles and field workers. These data can contribute to the development of new conservation strategies on the treatment of sea turtles, nest protection, and pollution detection on nesting beaches.
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Affiliation(s)
- Onur Candan
- Ordu University, Faculty of Arts and Sciences, Department of Molecular Biology and Genetics, 52200 Ordu, Turkey.
| | - Esra Deniz Candan
- Giresun University, Vocational School of Health Services, Department of Medical Services and Techniques, 28100 Giresun, Turkey
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Sousa STPD, Cabral L, Lacerda-Júnior GV, Noronha MF, Ottoni JR, Sartoratto A, Oliveira VMD. Exploring the genetic potential of a fosmid metagenomic library from an oil-impacted mangrove sediment for metabolism of aromatic compounds. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 189:109974. [PMID: 31761556 DOI: 10.1016/j.ecoenv.2019.109974] [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: 07/29/2019] [Revised: 10/10/2019] [Accepted: 11/13/2019] [Indexed: 06/10/2023]
Abstract
Aromatic hydrocarbons (AH) are widely distributed in nature, and many of them have been reported as relevant environmental pollutants and valuable carbon sources for different microorganisms. In this work, high-throughput sequencing of a metagenomic fosmid library was carried out to evaluate the functional and taxonomic diversity of genes involved in aromatic compounds degradation in oil-impacted mangrove sediments. In addition, activity-based approach and gas chromatography were used to assess the degradation potential of fosmid clones. Results indicated that AH degradation genes, such as monooxygenases and dioxygenases, were grouped into the following categories: anaerobic degradation of aromatic compounds (20.34%), metabolism of central aromatic intermediates (35.40%) and peripheral pathways for catabolism of aromatic compounds (22.56%). Taxonomic affiliation of genes related to aromatic compounds metabolism revealed the prevalence of the classes Alphaproteobacteria, Actinobacteria, Betaproteobacteria, Gammaproteobacteria and Deltaproteobacteria. Aromatic hydrocarbons (phenol, naphthalene, phenanthrene, pyrene and benzopyrene) were used as the only carbon source to screen clones with degradation potential. Of the 2500 clones tested, 48 showed some respiratory activity in at least one of the five carbon sources used. The hydrocarbon degradation ability of the top ten fosmid clones was confirmed by GC-MS. Further, annotation of assembled metagenomic fragments revealed ORFs corresponding to proteins and functional domains directly or indirectly involved in the aromatic compound metabolism, such as catechol 2,3-dioxygenase and ferredoxin oxidoreductase. Finally, these data suggest that the indigenous mangrove sediment microbiota developed essential mechanisms towards ecosystem remediation of petroleum hydrocarbon impact.
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Affiliation(s)
- Sanderson Tarciso Pereira de Sousa
- Research Center for Chemistry, Biology and Agriculture (CPQBA), Institute of Biology, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil.
| | - Lucélia Cabral
- Research Center for Chemistry, Biology and Agriculture (CPQBA), Institute of Biology, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil.
| | - Gileno Vieira Lacerda-Júnior
- Research Center for Chemistry, Biology and Agriculture (CPQBA), Institute of Biology, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil.
| | - Melline Fontes Noronha
- Research Center for Chemistry, Biology and Agriculture (CPQBA), Institute of Biology, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil.
| | - Júlia Ronzella Ottoni
- Research Center for Chemistry, Biology and Agriculture (CPQBA), Institute of Biology, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil.
| | - Adilson Sartoratto
- Research Center for Chemistry, Biology and Agriculture (CPQBA), Institute of Biology, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil.
| | - Valéria Maia de Oliveira
- Research Center for Chemistry, Biology and Agriculture (CPQBA), Institute of Biology, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil.
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Ding J, Chen S, Qu M, Wang Y, Di Y. Trophic transfer affects cytogenetic and antioxidant responses of the mussel Mytilus galloprovincialis to copper and benzo(α)pyrene. MARINE ENVIRONMENTAL RESEARCH 2020; 154:104848. [PMID: 32056703 DOI: 10.1016/j.marenvres.2019.104848] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 11/11/2019] [Accepted: 11/29/2019] [Indexed: 06/10/2023]
Abstract
The impacts of environmental pollutants on marine organisms can be determined by the routes of exposure. Various routes of exposure, including dietary exposure and waterborne exposure with or without feeding, were applied to study the cytogenetic responses in marine mussels Mytilus galloprovincials to typical pollutants, BaP (53.74 ± 19.79 μg/L) and Cu (47.38 ± 3.10 μg/L). The increased DNA strand breaks and micronucleus formation were found in haemocytes of mussels via the dietary exposure, indicating the vital role of trophic transfer in toxicity induction. The deeper exploration to relate BaP induced cytogenetic alterations with key antioxidant defense factors, SOD and GST, was performed under different exposure routes. The results revealed the significantly inhibited SOD activity via the trophic transfer, suggesting more direct or prompt role of SOD in antioxidant defense. On contrary, gene expressions of both sod and gst were up-regulated upon all routes of exposures, and showed negative correlation with enzyme activities. The results suggested the asynchronous regulation of studied antioxidant factors at transcriptional and enzyme functional level in mussels upon the change of exposure routes. The study brings out the first observation of trophic transfer influenced cytogenetic and antioxidant responses to pollutants and their alterative risk to marine organisms.
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Affiliation(s)
- Jiawei Ding
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, Zhoushan, 316000, PR China
| | - Siyu Chen
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, Zhoushan, 316000, PR China
| | - Mengjie Qu
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, Zhoushan, 316000, PR China
| | - Yi Wang
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, Zhoushan, 316000, PR China
| | - Yanan Di
- Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, Zhoushan, 316000, PR China.
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Bao H, Wang J, Li J, Zhang H, Wu F. Effects of corn straw on dissipation of polycyclic aromatic hydrocarbons and potential application of backpropagation artificial neural network prediction model for PAHs bioremediation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 186:109745. [PMID: 31606644 DOI: 10.1016/j.ecoenv.2019.109745] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 09/12/2019] [Accepted: 09/30/2019] [Indexed: 06/10/2023]
Abstract
In order to provide a viable option for remediation of PAHs-contaminated soils, a greenhouse experiment was conducted to assess the effect of corn straw amendment (1%, 2%, 4% or 6%, w/w) on dissipation of aged polycyclic aromatic hydrocarbons (PAHs) in contaminated soils. Backpropagation artificial neural network (BP-ANN) was applied to model the relationships between soil properties and PAHs concentration in soils. The removal rate of PAHs, enzyme activity (catalase and dehydrogenase), dissolved organic carbon (DOC) and microbial biomass carbon (MBC) in soils were investigated to evaluate the dissipation of PAHs under different ratio of corn straw amendment. The present study showed that corn straw amendment apparently accelerated the dissipation of PAHs after incubation of 112 days, especially under 4% and 6% treatments. Compared with non-amended soil, corn straw amendment significantly (p < 0.05) increased the removal rate of low molecular weight (LMW) PAHs and significantly (p < 0.05) enhanced the dissipation of high molecular weight (HMW) PAHs only under 6% treatment. Moreover, corn straw amendment increased activities of catalase and dehydrogenase, concentrations of DOC and MBC in soils, which are beneficial to the degradation of PAHs in soils. The performance of the BP-ANN model was assessed through the root mean square error (RMSE) and determination coefficient (R2). The results indicated that BP-ANN model could provide satisfactory prediction of PAHs concentration in soils during incubation period at R2 and RMSE values of 0.948, 187.4 μg kg-1, respectively. The results indicated that high amendment of corn straw was a potential option for remediation of PAHs-contaminated soils and that the BP-ANN model could successfully provide prompt prediction of PAHs concentration in soils.
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Affiliation(s)
- Huanyu Bao
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling, 712100, Shaanxi, PR China
| | - Jinfeng Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling, 712100, Shaanxi, PR China
| | - Jiao Li
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling, 712100, Shaanxi, PR China
| | - He Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling, 712100, Shaanxi, PR China
| | - Fuyong Wu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling, 712100, Shaanxi, PR China.
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Ahmad M, Yang Q, Zhang Y, Ling J, Sajjad W, Qi S, Zhou W, Zhang Y, Lin X, Zhang Y, Dong J. The distinct response of phenanthrene enriched bacterial consortia to different PAHs and their degradation potential: a mangrove sediment microcosm study. JOURNAL OF HAZARDOUS MATERIALS 2019; 380:120863. [PMID: 31401251 DOI: 10.1016/j.jhazmat.2019.120863] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 05/28/2019] [Accepted: 07/02/2019] [Indexed: 06/10/2023]
Abstract
Understanding the microbial community succession to polycyclic aromatic hydrocarbons (PAHs) and identification of important degrading microbial groups are crucial for the designing of appropriate bioremediation strategies. In the present study, two distinct phenanthrene enriched bacterial consortia were treated against high molecular weight (Pyrene, Benzo (a) pyrene and Benzo (a) fluoranthene) and the response was studied in term of taxonomic variations by using High Throughput Illumina sequencing and qPCR analysis. Overall, the type of PAHs significantly affected the composition and the relative abundance of bacterial communities while no obvious difference was detected between bacterial communities of benzo (a) pyrene and benzo (a) fluoranthene treatments. Genera, Novosphingobium, Pseudomonas, Flavobacterium, Mycobacterium, Hoeflae, and Algoriphagus dominated all PAHs treatment groups indicating that they could be the key PAHs degrading phylotypes. Due to the higher abundance of gram-negative PAH-ring hydroxylating dioxygenase gene than that of gram-positive bacteria in all treated groups, we speculated that gram-negative bacteria may contribute more in the PAH degradation. The studied sediments harbored rich PAHs degrading bacterial assemblages involved in both low and high molecular weight PAHs and these findings provided new insight into the perspective of microbial PAHs bioremediation in the mangrove ecosystem.
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Affiliation(s)
- Manzoor Ahmad
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301 Guangzhou, China; University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Qingsong Yang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301 Guangzhou, China; University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Yanying Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301 Guangzhou, China; Tropical Marine Biological Research station in Hainan, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 572000 Sanya, China; University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Juan Ling
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301 Guangzhou, China; Tropical Marine Biological Research station in Hainan, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 572000 Sanya, China; University of Chinese Academy of Sciences, 100049 Beijing, China.
| | - Wasim Sajjad
- Department of Biological Sciences, National University of Medical Sciences, 46000 Rawalpindi, Pakistan
| | - Shuhua Qi
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301 Guangzhou, China
| | - Weiguo Zhou
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301 Guangzhou, China; University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Ying Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301 Guangzhou, China; University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Xiancheng Lin
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301 Guangzhou, China; University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Yuhang Zhang
- Guangdong Pharmaceutical University, 510006 Guangzhou, China
| | - Junde Dong
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301 Guangzhou, China; Tropical Marine Biological Research station in Hainan, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 572000 Sanya, China; University of Chinese Academy of Sciences, 100049 Beijing, China.
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36
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Gholami F, Shavandi M, Dastgheib SMM, Amoozegar MA. The impact of calcium peroxide on groundwater bacterial diversity during naphthalene removal by permeable reactive barrier (PRB). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:35218-35226. [PMID: 31691896 DOI: 10.1007/s11356-019-06398-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Accepted: 09/02/2019] [Indexed: 06/10/2023]
Abstract
Oxygen-releasing compounds (ORCs) have recently gained much attention in contaminated groundwater remediation. We investigated the impact of calcium peroxide nanoparticles on the groundwater indigenous bacteria in a bioremediation process by permeable reactive barrier (PRB). Three sand-packed columns were applied, including (1) control column (fresh groundwater), (2) natural remediation column (contaminated groundwater), and (3) biostimulation column (contaminated groundwater amended with CaO2). Actinobacteria and Proteobacteria constituted the main phyla among the identified isolates. According to the results of next-generation sequencing, Proteobacteria was the dominant phylum (81% relative abundance) in the natural remediation condition. But, it was declined to 38.1% in the biostimulation column. Meanwhile, the abundance of Actinobacteria and Bacteroidetes were increased to 25.9% and 15.4%, respectively, by exposing the groundwater microbial structure to CaO2 nanoparticles. Furthermore, orders Chlamydiales, Nitrospirales, and Oceanospirillales existing in the control column were detected in the presence of naphthalene. Shannon index was 4.32 for the control column samples, while it was reduced to 2.73 and 2.00 in the natural and biostimulation columns, respectively. Therefore, the present study provides a considerable insight into the impact of ORCs on the groundwater microbial community during the bioremediation process.
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Affiliation(s)
- Fatemeh Gholami
- Extremophiles Laboratory, Department of Microbiology, College of Science, University of Tehran, Tehran, Iran
| | - Mahmoud Shavandi
- Ecology and Environmental Pollution Control Research Group, Research Institute of Petroleum Industry, P.O. Box: 14665-137, Tehran, Iran.
| | | | - Mohammad Ali Amoozegar
- Extremophiles Laboratory, Department of Microbiology, College of Science, University of Tehran, Tehran, Iran
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37
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Zhang S, Hu Z, Wang H. Metagenomic analysis exhibited the co-metabolism of polycyclic aromatic hydrocarbons by bacterial community from estuarine sediment. ENVIRONMENT INTERNATIONAL 2019; 129:308-319. [PMID: 31150973 DOI: 10.1016/j.envint.2019.05.028] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 04/15/2019] [Accepted: 05/08/2019] [Indexed: 06/09/2023]
Abstract
The bacterial community from estuarine sediment undertakes the bioremediation and energy transformation of anthropogenic pollutants especially polycyclic aromatic hydrocarbons (PAHs). However, information and studies on bacterial synergism and related metabolic profiles under the stress of PAHs are limited. In this study, sediments from estuarine were collected and co-incubated with a classical PAH, pyrene. The results showed that Alpha- and Gammaproteobacteria became abundant at the late domesticating phase with the dominant genus of ZD0117, the uncultivated bacteria affiliated into Gammaproteobacteria. Functional gene analysis based on metagenomic sequencing showed that quantitatively changes of genes directly related to the degradation of aromatic hydrocarbon coordinated with genes involved into various metabolic pathways such as acylglycerol degradation, nitrogen fixation, sulfate transport system, Arnon-Buchanan cycle, and Calvin cycle (P < 0.01 and |ρ| > 0.8). Fifty-six metagenome-assembled genomes (MAGs) were reconstructed, which were primarily composed by Alpha- and Gammaproteobacteria. Bacteria belonging to the phylum Proteobacteria were found to be abundant in MAGs and contained genes encoding for dehydrogenase, which are key enzymes for pyrene degradation. In addition, genomes of uncultivated bacteria were successfully reconstructed and were proven to carry genes of synergistically metabolizing pyrene. Based on analysis of typical MAGs, the metabolic pathways involved in syntrophic associations of a pyrene-degrading consortium were reconstructed. The results in this study could make us fully understand the metabolic patterns of pyrene-degrading consortium from the estuarine sediment and widen the scope of functional bacteria.
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Affiliation(s)
- Shuangfei Zhang
- Biology Department, College of Science, Shantou University, Shantou 515063, China
| | - Zhong Hu
- Biology Department, College of Science, Shantou University, Shantou 515063, China
| | - Hui Wang
- Biology Department, College of Science, Shantou University, Shantou 515063, China.
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Franco ME, Lavado R. Applicability of in vitro methods in evaluating the biotransformation of polycyclic aromatic hydrocarbons (PAHs) in fish: Advances and challenges. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 671:685-695. [PMID: 30939321 DOI: 10.1016/j.scitotenv.2019.03.394] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 03/24/2019] [Accepted: 03/25/2019] [Indexed: 05/24/2023]
Abstract
The biotransformation of polycyclic aromatic hydrocarbons (PAHs) and the biochemical mechanisms involved in such process continue to be intensively studied in the fields of environmental science and toxicology. The investigation of PAH biotransformation in fish is fundamental to understand how piscine species cope with PAH exposure, as these compounds are ubiquitous in aquatic ecosystems and impact different levels of biological organization. New approaches are continuously developed in the field of ecotoxicology, allowing live animal testing to be combined with and, in some cases, replaced with novel in vitro systems. Many in vitro techniques have been developed and effectively applied in the investigation of the biochemical pathways driving the biotransformation of PAH in fish. In vitro experimentation has been fundamental in the advancement of not only understanding PAH-mediated toxicity, but also in highlighting suitable cell-based models for such investigations. Therefore, the present review highlights the value and applicability of in vitro systems for PAH biotransformation studies, and provides up-to-date information on the use of in vitro fish models in the evaluation of PAH biotransformation, common biomarkers, and challenges encountered when developing and applying such systems.
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Affiliation(s)
- Marco E Franco
- Department of Environmental Science, Baylor University, Waco, TX 76706, USA.
| | - Ramon Lavado
- Department of Environmental Science, Baylor University, Waco, TX 76706, USA
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Low potential enzymatic hydride transfer via highly cooperative and inversely functionalized flavin cofactors. Nat Commun 2019; 10:2074. [PMID: 31061390 PMCID: PMC6502838 DOI: 10.1038/s41467-019-10078-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 04/12/2019] [Indexed: 02/01/2023] Open
Abstract
Hydride transfers play a crucial role in a multitude of biological redox reactions and are mediated by flavin, deazaflavin or nicotinamide adenine dinucleotide cofactors at standard redox potentials ranging from 0 to –340 mV. 2-Naphthoyl-CoA reductase, a key enzyme of oxygen-independent bacterial naphthalene degradation, uses a low-potential one-electron donor for the two-electron dearomatization of its substrate below the redox limit of known biological hydride transfer processes at E°’ = −493 mV. Here we demonstrate by X-ray structural analyses, QM/MM computational studies, and multiple spectroscopy/activity based titrations that highly cooperative electron transfer (n = 3) from a low-potential one-electron (FAD) to a two-electron (FMN) transferring flavin cofactor is the key to overcome the resonance stabilized aromatic system by hydride transfer in a highly hydrophobic pocket. The results evidence how the protein environment inversely functionalizes two flavins to switch from low-potential one-electron to hydride transfer at the thermodynamic limit of flavin redox chemistry. The reduction of 2-naphtoyl-CoA to 5,6 dihydro-2-naphtoyl-CoA by 2-naphtoyl-CoA reductase is below the negative redox limit usually encountered in biological hydride transfer. Here, via X-ray crystallography and spectroscopic analysis, the authors elucidated the mechanism behind this.
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40
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Neethu CS, Saravanakumar C, Purvaja R, Robin RS, Ramesh R. Oil-Spill Triggered Shift in Indigenous Microbial Structure and Functional Dynamics in Different Marine Environmental Matrices. Sci Rep 2019; 9:1354. [PMID: 30718727 PMCID: PMC6361881 DOI: 10.1038/s41598-018-37903-x] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 12/10/2018] [Indexed: 12/21/2022] Open
Abstract
Microbial degradation has long been recognized as the key rescue mechanism in shaping the oil polluted marine environments and the role of indigenous populations or their functional genomics have never been explored from Indian marine environments, post an oil spill event. In the current study, high throughput metagenomic analysis, PLFA profiling and mass spectrophotometric analysis was performed in combination with metabolomics to capture signature variations among the microbial communities in sediment, water and laboratory enrichments. Contrary to the previous reports, the bloom of Pseudomonadales (specifically genus Acinetobacter) in oiled sediment and Methylococcales in oiled water outnumbered the relative abundance of Alcanivorax in response to hydrocarbon contamination. Overall enhancement of xenobiotic degradation was suggested by metabolomic analysis in sediment and water post the spill event and varying quantitative assemblage of enzymes were found to be involved in hydrocarbon utilization. Laboratory enrichments revealed the competitive advantage of sediment communities over the water communities although unique taxa belonging to the later were also found to be enriched under in vitro conditions. Simultaneous analysis of sediment and water in the study provided explicit evidences on existence of differential microbial community dynamics, offering insight into possibilities of formulating nature identical solutions for hydrocarbon pollution.
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Affiliation(s)
- C S Neethu
- National Centre for Sustainable Coastal Management (NCSCM), Ministry of Environment, Forest and Climate Change (MoEFCC), Chennai, 600025, India
| | - C Saravanakumar
- National Centre for Sustainable Coastal Management (NCSCM), Ministry of Environment, Forest and Climate Change (MoEFCC), Chennai, 600025, India.
| | - R Purvaja
- National Centre for Sustainable Coastal Management (NCSCM), Ministry of Environment, Forest and Climate Change (MoEFCC), Chennai, 600025, India.
| | - R S Robin
- National Centre for Sustainable Coastal Management (NCSCM), Ministry of Environment, Forest and Climate Change (MoEFCC), Chennai, 600025, India
| | - R Ramesh
- National Centre for Sustainable Coastal Management (NCSCM), Ministry of Environment, Forest and Climate Change (MoEFCC), Chennai, 600025, India.
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pahE, a Functional Marker Gene for Polycyclic Aromatic Hydrocarbon-Degrading Bacteria. Appl Environ Microbiol 2019; 85:AEM.02399-18. [PMID: 30478232 DOI: 10.1128/aem.02399-18] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 11/09/2018] [Indexed: 11/20/2022] Open
Abstract
The characterization of native polycyclic aromatic hydrocarbon (PAH)-degrading bacteria is significant for understanding the PAH degradation process in the natural environment and developing effective remediation technologies. Most previous investigations of PAH-degrading bacteria in environmental samples employ pahAc, which encodes the α-subunit of PAH ring-hydroxylating dioxygenase, as a functional marker gene. However, the poor phylogenetic resolution and nonspecificity of pahAc result in a misestimation of PAH-degrading bacteria. Here, we propose a PAH hydratase-aldolase-encoding gene, pahE, as a superior biomarker for PAH-degrading bacteria. Comparative phylogenetic analysis of the key enzymes involved in the upper pathway of PAH degradation indicated that pahE evolved dependently from a common ancestor. A phylogenetic tree constructed based on PahE is largely congruent with PahAc-based phylogenies, except for the dispersion of several clades of other non-PAH-degrading aromatic hydrocarbon dioxygenases present in the PahAc tree. Analysis of pure strains by PCR confirmed that pahE can specifically distinguish PAH-degrading bacteria, while pahAc cannot. Illumina sequencing of pahE and pahAc amplicons showed more genotypes and higher specificity and resolution for pahE Novel reads were also discovered among the pahE amplicons, suggesting the presence of novel PAH-degrading populations. These results suggest that pahE is a more powerful biomarker for exploring the ecological role and degradation potential of PAH-degrading bacteria in ecosystems, which is significant to the bioremediation of PAH pollution and environmental microbial ecology.IMPORTANCE PAH contamination has become a worldwide environmental issue because of the potential toxic effects on natural ecosystems and human health. Biotransformation and biodegradation are considered the main natural elimination forms of PAHs from contaminated sites. Therefore, the knowledge of the degradation potential of the microbial community in contaminated sites is crucial for PAH pollution bioremediation. However, the nonspecificity of pahAc as a functional marker of PAH-degrading bacteria has resulted neither in a reliable prediction of PAH degradation potential nor an accurate assessment of degradation. Here, we introduced pahE encoding the PAH hydratase-aldolase as a new and better functional marker gene of PAH-degrading bacteria. This study provides a powerful molecular tool to more effectively explore the ecological role and degradation potential of PAH-degrading bacteria in ecosystems, which is significant to the bioremediation of PAH pollution.
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Distribution of bacterial polycyclic aromatic hydrocarbon (PAH) ring-hydroxylating dioxygenases genes in oilfield soils and mangrove sediments explored by gene-targeted metagenomics. Appl Microbiol Biotechnol 2019; 103:2427-2440. [PMID: 30661109 DOI: 10.1007/s00253-018-09613-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 12/25/2018] [Accepted: 12/28/2018] [Indexed: 10/27/2022]
Abstract
PAH ring-hydroxylating dioxygenases (PAH-RHDα) gene, a useful biomarker for PAH-degrading bacteria, has been widely used to examine PAH-degrading bacterial community in different contaminated sites. However, the distribution of PAH-RHDα genes in oilfield soils and mangrove sediments and their relationship with environmental factors still remain largely unclear. In this study, gene-targeted metagenomics was first used to investigate the diversity of PAH-degrading bacterial communities in oilfield soils and mangrove sediments. The results showed that higher diversity of PAH-degrading bacteria in the studied samples was revealed by gene-targeted metagenomics than traditional clone library analysis. Pseudomonas, Burkholderia, Ralstonia, Polymorphum gilvum, Mycobacterium, Sciscionella marina, Rhodococcus, and potential new degraders were prevailed in the oilfield area. For mangrove sediments, novel PAH degraders and Mycobacterium were predominated. The spatial distribution of PAH-RHDα gene was dependent on geographical location and regulated by local environmental variables. PAH content played a key role in shaping PAH-degrading bacterial communities in the studied samples, which would enrich PAH-degrading bacterial population and decrease PAH-degrading bacterial diversity. This work brings a more comprehensive and some new insights into the distribution and biodegradation potential of PAH-degrading bacteria in soil and sediments ecosystems.
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Wang W, Wang L, Shao Z. Polycyclic Aromatic Hydrocarbon (PAH) Degradation Pathways of the Obligate Marine PAH Degrader Cycloclasticus sp. Strain P1. Appl Environ Microbiol 2018; 84:AEM.01261-18. [PMID: 30171002 PMCID: PMC6193391 DOI: 10.1128/aem.01261-18 10.1016/j.biotechadv.2015.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 08/19/2018] [Indexed: 06/12/2023] Open
Abstract
Bacteria play an important role in the removal of polycyclic aromatic hydrocarbons (PAHs) from polluted environments. In marine environments, Cycloclasticus is one of the most prevalent PAH-degrading bacterial genera. However, little is known regarding the degradation mechanisms for multiple PAHs by CycloclasticusCycloclasticus sp. strain P1 was isolated from deep-sea sediments and is known to degrade naphthalene, phenanthrene, pyrene, and other aromatic hydrocarbons. Here, six ring-hydroxylating dioxygenases (RHDs) were identified in the complete genome of Cycloclasticus sp. P1 and were confirmed to be involved in PAH degradation by enzymatic assays. Further, five gene clusters in its genome were identified to be responsible for PAH degradation. Degradation pathways for naphthalene, phenanthrene, and pyrene were elucidated in Cycloclasticus sp. P1 based on genomic and transcriptomic analysis and characterization of an interconnected metabolic network. The metabolic pathway overlaps in many steps in the degradation of pyrene, phenanthrene, and naphthalene, which were validated by the detection of metabolic intermediates in cultures. This study describes a pyrene degradation pathway for Cycloclasticus. Moreover, the study represents the integration of a PAH metabolic network that comprises pyrene, phenanthrene, and naphthalene degradation pathways. Taken together, these results provide a comprehensive investigation of PAH metabolism in CycloclasticusIMPORTANCE PAHs are ubiquitous in the environment and are carcinogenic compounds and tend to accumulate in food chains due to their low bioavailability and poor biodegradability. Cycloclasticus is an obligate marine PAH degrader and is widespread in marine environments, while the PAH degradation pathways remain unclear. In this report, the degradation pathways for naphthalene, phenanthrene, and pyrene were revealed, and an integrated PAH metabolic network covering pyrene, phenanthrene, and naphthalene was constructed in Cycloclasticus This overlapping network provides streamlined processing of PAHs to intermediates and ultimately to complete mineralization. Furthermore, these results provide an additional context for the prevalence of Cycloclasticus in oil-polluted marine environments and pelagic settings. In conclusion, these analyses provide a useful framework for understanding the cellular processes involved in PAH metabolism in an ecologically important marine bacterium.
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Affiliation(s)
- Wanpeng Wang
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, SOA, Xiamen, China
- Xiamen Key Laboratory of Marine Genetic Resources, State Key Laboratory Breeding Base, Xiamen, China
- Fujian Key Laboratory of Marine Genetic Resources, Xiamen, China
| | - Lin Wang
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, SOA, Xiamen, China
- Xiamen Key Laboratory of Marine Genetic Resources, State Key Laboratory Breeding Base, Xiamen, China
- Fujian Key Laboratory of Marine Genetic Resources, Xiamen, China
| | - Zongze Shao
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, SOA, Xiamen, China
- Xiamen Key Laboratory of Marine Genetic Resources, State Key Laboratory Breeding Base, Xiamen, China
- Fujian Key Laboratory of Marine Genetic Resources, Xiamen, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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Polycyclic Aromatic Hydrocarbon (PAH) Degradation Pathways of the Obligate Marine PAH Degrader Cycloclasticus sp. Strain P1. Appl Environ Microbiol 2018; 84:AEM.01261-18. [PMID: 30171002 DOI: 10.1128/aem.01261-18] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 08/19/2018] [Indexed: 12/13/2022] Open
Abstract
Bacteria play an important role in the removal of polycyclic aromatic hydrocarbons (PAHs) from polluted environments. In marine environments, Cycloclasticus is one of the most prevalent PAH-degrading bacterial genera. However, little is known regarding the degradation mechanisms for multiple PAHs by Cycloclasticus Cycloclasticus sp. strain P1 was isolated from deep-sea sediments and is known to degrade naphthalene, phenanthrene, pyrene, and other aromatic hydrocarbons. Here, six ring-hydroxylating dioxygenases (RHDs) were identified in the complete genome of Cycloclasticus sp. P1 and were confirmed to be involved in PAH degradation by enzymatic assays. Further, five gene clusters in its genome were identified to be responsible for PAH degradation. Degradation pathways for naphthalene, phenanthrene, and pyrene were elucidated in Cycloclasticus sp. P1 based on genomic and transcriptomic analysis and characterization of an interconnected metabolic network. The metabolic pathway overlaps in many steps in the degradation of pyrene, phenanthrene, and naphthalene, which were validated by the detection of metabolic intermediates in cultures. This study describes a pyrene degradation pathway for Cycloclasticus. Moreover, the study represents the integration of a PAH metabolic network that comprises pyrene, phenanthrene, and naphthalene degradation pathways. Taken together, these results provide a comprehensive investigation of PAH metabolism in Cycloclasticus IMPORTANCE PAHs are ubiquitous in the environment and are carcinogenic compounds and tend to accumulate in food chains due to their low bioavailability and poor biodegradability. Cycloclasticus is an obligate marine PAH degrader and is widespread in marine environments, while the PAH degradation pathways remain unclear. In this report, the degradation pathways for naphthalene, phenanthrene, and pyrene were revealed, and an integrated PAH metabolic network covering pyrene, phenanthrene, and naphthalene was constructed in Cycloclasticus This overlapping network provides streamlined processing of PAHs to intermediates and ultimately to complete mineralization. Furthermore, these results provide an additional context for the prevalence of Cycloclasticus in oil-polluted marine environments and pelagic settings. In conclusion, these analyses provide a useful framework for understanding the cellular processes involved in PAH metabolism in an ecologically important marine bacterium.
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Goldsmith DB, Kellogg CA, Morrison CL, Gray MA, Stone RP, Waller RG, Brooke SD, Ross SW. Comparison of microbiomes of cold-water corals Primnoa pacifica and Primnoa resedaeformis, with possible link between microbiome composition and host genotype. Sci Rep 2018; 8:12383. [PMID: 30120375 PMCID: PMC6098105 DOI: 10.1038/s41598-018-30901-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 08/08/2018] [Indexed: 12/26/2022] Open
Abstract
Cold-water corals provide critical habitats for a multitude of marine species, but are understudied relative to tropical corals. Primnoa pacifica is a cold-water coral prevalent throughout Alaskan waters, while another species in the genus, Primnoa resedaeformis, is widely distributed in the Atlantic Ocean. This study examined the V4-V5 region of the 16S rRNA gene after amplifying and pyrosequencing bacterial DNA from samples of these species. Key differences between the two species' microbiomes included a robust presence of bacteria belonging to the Chlamydiales order in most of the P. pacifica samples, whereas no more than 2% of any microbial community from P. resedaeformis comprised these bacteria. Microbiomes of P. resedaeformis exhibited higher diversity than those of P. pacifica, and the two species largely clustered separately in a principal coordinate analysis. Comparison of P. resedaeformis microbiomes from samples collected in two submarine canyons revealed a significant difference between locations. This finding mirrored significant genetic differences among the P. resedaeformis from the two canyons based upon population genetic analysis of microsatellite loci. This study presents the first report of microbiomes associated with these two coral species.
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Affiliation(s)
- Dawn B Goldsmith
- St. Petersburg Coastal and Marine Science Center, US Geological Survey, St. Petersburg, FL, United States of America
| | - Christina A Kellogg
- St. Petersburg Coastal and Marine Science Center, US Geological Survey, St. Petersburg, FL, United States of America.
| | - Cheryl L Morrison
- Leetown Science Center, US Geological Survey, Kearneysville, WV, United States of America
| | - Michael A Gray
- St. Petersburg Coastal and Marine Science Center, US Geological Survey, St. Petersburg, FL, United States of America
| | - Robert P Stone
- Auke Bay Laboratories, Alaska Fisheries Science Center, NOAA Fisheries, 17109, Point Lena Loop Road, Juneau, AK, United States of America
| | - Rhian G Waller
- Darling Marine Center, University of Maine, Walpole, ME, United States of America
| | - Sandra D Brooke
- Coastal and Marine Laboratory, Florida State University, St. Teresa, FL, United States of America
| | - Steve W Ross
- Center for Marine Science, University of North Carolina at Wilmington, Wilmington, NC, United States of America
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Exploring multi potential uses of marine bacteria; an integrated approach for PHB production, PAHs and polyethylene biodegradation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 185:55-65. [DOI: 10.1016/j.jphotobiol.2018.05.014] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 04/01/2018] [Accepted: 05/15/2018] [Indexed: 11/23/2022]
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47
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Birolli WG, de A Santos D, Alvarenga N, Garcia ACFS, Romão LPC, Porto ALM. Biodegradation of anthracene and several PAHs by the marine-derived fungus Cladosporium sp. CBMAI 1237. MARINE POLLUTION BULLETIN 2018; 129:525-533. [PMID: 29055563 DOI: 10.1016/j.marpolbul.2017.10.023] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 09/27/2017] [Accepted: 10/09/2017] [Indexed: 06/07/2023]
Abstract
The biodegradation of polycyclic aromatic hydrocarbons (PAHs) by marine-derived fungi was reported in this work. Marine-derived fungi (Trichoderma harzianum CBMAI 1677, Cladosporium sp. CBMAI 1237, Aspergillus sydowii CBMAI 935, Penicillium citrinum CBMAI 1186 and Mucor racemosus CBMAI 847) biodegraded anthracene (14days, 130rpm, 50mgmL-1 initial concentration in malt 2% medium). Cladosporium sp. CBMAI 1237 was the most efficient strain and biodegraded more anthracene in the presence (42% biodegradation) than in the absence (26%) of artificial seawater, suggesting that the biodegradation of PAHs may be faster in seawater than in non-saline environment. After 21days, Cladosporium sp. CBMAI 1237 biodegraded anthracene (71% biodegradation), anthrone (100%), anthraquinone (32%), acenaphthene (78%), fluorene (70%), phenanthrene (47%), fluoranthene (52%), pyrene (62%) and nitropyrene (64%). Previous undocumented metabolites were identified and, anthraquinone was a common product of different PAHs biodegradation. The marine-derived fungus Cladosporium sp. CBMAI 1237 showed potential for bioremediation of PAHs.
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Affiliation(s)
- Willian G Birolli
- Laboratório de Química Orgânica e Biocatálise, Instituto de Química de São Carlos, Universidade de São Paulo, Av. João Dagnone, 1100, Ed. Química Ambiental, J. Santa Angelina, 13563-120, São Carlos, SP, Brazil
| | - Darlisson de A Santos
- Laboratório de Química Orgânica e Biocatálise, Instituto de Química de São Carlos, Universidade de São Paulo, Av. João Dagnone, 1100, Ed. Química Ambiental, J. Santa Angelina, 13563-120, São Carlos, SP, Brazil
| | - Natália Alvarenga
- Laboratório de Química Orgânica e Biocatálise, Instituto de Química de São Carlos, Universidade de São Paulo, Av. João Dagnone, 1100, Ed. Química Ambiental, J. Santa Angelina, 13563-120, São Carlos, SP, Brazil
| | - Anuska C F S Garcia
- Laboratório de Matéria Orgânica Natural, Departamento de Química, Universidade Federal de Sergipe, 49100-000, São Cristovão, SE, Brazil
| | - Luciane P C Romão
- Laboratório de Matéria Orgânica Natural, Departamento de Química, Universidade Federal de Sergipe, 49100-000, São Cristovão, SE, Brazil
| | - André L M Porto
- Laboratório de Química Orgânica e Biocatálise, Instituto de Química de São Carlos, Universidade de São Paulo, Av. João Dagnone, 1100, Ed. Química Ambiental, J. Santa Angelina, 13563-120, São Carlos, SP, Brazil.
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Rodrigues EM, Morais DK, Pylro VS, Redmile-Gordon M, de Oliveira JA, Roesch LFW, Cesar DE, Tótola MR. Aliphatic Hydrocarbon Enhances Phenanthrene Degradation by Autochthonous Prokaryotic Communities from a Pristine Seawater. MICROBIAL ECOLOGY 2018; 75:688-700. [PMID: 28971238 DOI: 10.1007/s00248-017-1078-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 09/22/2017] [Indexed: 06/07/2023]
Abstract
The microbial diversity and functioning around oceanic islands is poorly described, despite its importance for ecosystem homeostasis. Here, we aimed to verify the occurrence of microbe-driven phenanthrene co-oxidation in the seawater surrounding the Trindade Island (Brazil). We also used Next-Generation Sequencing to evaluate the effects of aliphatic and polycyclic aromatic hydrocarbons (PAHs) on these microbial community assemblies. Microcosms containing seawater from the island enriched with either labelled (9-14C) or non-labelled phenanthrene together with hexadecane, weathered oil, fluoranthene or pyrene, and combinations of these compounds were incubated. Biodegradation of phenanthrene-9-14C was negatively affected in the presence of weathered oil and PAHs but increased in the presence of hexadecane. PAH contamination caused shifts in the seawater microbial community-from a highly diverse one dominated by Alphaproteobacteria to less diverse communities dominated by Gammaproteobacteria. Furthermore, the combination of PAHs exerted a compounded negative influence on the microbial community, reducing its diversity and thus functional capacity of the ecosystem. These results advance our understanding of bacterial community dynamics in response to contrasting qualities of hydrocarbon contamination. This understanding is fundamental in the application and monitoring of bioremediation strategies if accidents involving oil spillages occur near Trindade Island and similar ecosystems.
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Affiliation(s)
- Edmo Montes Rodrigues
- Laboratório de Biotecnologia e Biodiversidade para o Meio Ambiente, Departamento de Microbiologia, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil.
| | - Daniel Kumazawa Morais
- Laboratory of Environmental Microbiology, Institute of Microbiology of the Czech Institute of Sciences (CAS), Prague, Czech Republic
| | - Victor Satler Pylro
- Soil Microbiology Laboratory, Department of Soil Science, "Luiz de Queiroz" College of Agriculture, ESALQ/USP, Piracicaba, São Paulo, Brazil
| | - Marc Redmile-Gordon
- Department of Sustainable Soils and Grassland Systems, Rothamsted Research, Harpenden, Hertfordshire, UK
| | - Juraci Alves de Oliveira
- Laboratório de Biofísica Ambiental, Departamento de Biologia, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | - Luiz Fernando Wurdig Roesch
- Centro para Pesquisa Interdisciplinar em Biotecnologia, CIP-Biotec, Universidade Federal do Pampa, São Gabriel, Rio Grande do Sul, Brazil
| | - Dionéia Evangelista Cesar
- Laboratório de Ecologia e Biologia Molecular de Microrganismos, Departamento de Biologia, Universidade Federal de Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil
| | - Marcos Rogério Tótola
- Laboratório de Biotecnologia e Biodiversidade para o Meio Ambiente, Departamento de Microbiologia, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
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Zhang S, Hu Z, Wang H. A Retrospective Review of Microbiological Methods Applied in Studies Following the Deepwater Horizon Oil Spill. Front Microbiol 2018; 9:520. [PMID: 29628913 PMCID: PMC5876298 DOI: 10.3389/fmicb.2018.00520] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 03/08/2018] [Indexed: 12/19/2022] Open
Abstract
The Deepwater Horizon (DWH) oil spill in the Gulf of Mexico in 2010 resulted in serious damage to local marine and coastal environments. In addition to the physical removal and chemical dispersion of spilled oil, biodegradation by indigenous microorganisms was regarded as the most effective way for cleaning up residual oil. Different microbiological methods were applied to investigate the changes and responses of bacterial communities after the DWH oil spills. By summarizing and analyzing these microbiological methods, giving recommendations and proposing some methods that have not been used, this review aims to provide constructive guidelines for microbiological studies after environmental disasters, especially those involving organic pollutants.
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Affiliation(s)
| | - Zhong Hu
- Biology Department, College of Science, Shantou University, Shantou, China
| | - Hui Wang
- Biology Department, College of Science, Shantou University, Shantou, China
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50
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Su X, Bamba A, Zhang S, Zhang Y, Hashmi M, Lin H, Ding L. Revealing potential functions of VBNC bacteria in polycyclic aromatic hydrocarbons biodegradation. Lett Appl Microbiol 2018; 66:277-283. [DOI: 10.1111/lam.12853] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 01/13/2018] [Accepted: 01/14/2018] [Indexed: 12/12/2022]
Affiliation(s)
- X.M. Su
- College of Geography and Environmental Science; Zhejiang Normal University; Jinhua China
| | - A.M. Bamba
- College of Geography and Environmental Science; Zhejiang Normal University; Jinhua China
| | - S. Zhang
- College of Geography and Environmental Science; Zhejiang Normal University; Jinhua China
| | - Y.G. Zhang
- College of Geography and Environmental Science; Zhejiang Normal University; Jinhua China
| | - M.Z. Hashmi
- Department of Meteorology; COMSATS Institute of Information Technology; Islamabad Pakistan
| | - H.J. Lin
- College of Geography and Environmental Science; Zhejiang Normal University; Jinhua China
| | - L.X. Ding
- College of Geography and Environmental Science; Zhejiang Normal University; Jinhua China
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