151
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Sarkar B, Mukhopadhyay R, Ramanayaka S, Bolan N, Ok YS. The role of soils in the disposition, sequestration and decontamination of environmental contaminants. Philos Trans R Soc Lond B Biol Sci 2021; 376:20200177. [PMID: 34365830 DOI: 10.1098/rstb.2020.0177] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Soil serves as both a 'source' and 'sink' for contaminants. As a source, contaminants are derived from both 'geogenic' and 'anthropogenic' origins. Typically, while some of the inorganic contaminants including potentially toxic elements are derived from geogenic origin (e.g. arsenic and selenium) through weathering of parent materials, the majority of organic (e.g. pesticides and microplastics) as well as inorganic (e.g. lead, cadmium) contaminants are derived from anthropogenic origin. As a sink, soil plays a critical role in the transformation of these contaminants and their subsequent transfer to environmental compartments, including groundwater (e.g. pesticides), surface water (phosphate and nitrate), ocean (e.g. microplastics) and atmosphere (e.g. nitrous oxide emission). A complex transformation process of contaminants in soil involving adsorption, precipitation, redox reactions and biodegradation control the mobility, bioavailability and environmental toxicity of these contaminants. Soil also plays a major role in the decontamination of contaminants, and the 'cleaning' action of soil is controlled primarily by the physico-chemical interactions of contaminants with various soil components, and the biochemical transformations facilitated by soil microorganisms. In this article, we examine the geogenic and anthropogenic sources of contaminants reaching the soil, and discuss the role of soil in the sequestration and decontamination of contaminants in relation to various physico-chemical and microbial transformation reactions of contaminants with various soil components. Finally, we propose future actions that would help to maintain the role of soils in protecting the environment from contaminants and delivering sustainable development goals. This article is part of the theme issue 'The role of soils in delivering Nature's Contributions to People'.
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Affiliation(s)
- Binoy Sarkar
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK
| | - Raj Mukhopadhyay
- Division of Irrigation and Drainage Engineering, ICAR-Central Soil Salinity Research Institute, Karnal 132001, Haryana, India
| | - Sammani Ramanayaka
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK.,Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Sri Lanka
| | - Nanthi Bolan
- College of Engineering, Science and Environment, University of Newcastle, Callaghan, New South Wales 2308, Australia.,School of Agriculture and Environment, The University of Western Australia, Perth, Western Australia 6001, Australia.,The UWA Institute, The University of Western Australia, Perth, Western Australia 6001, Australia
| | - Yong Sik Ok
- Korea Biochar Research Centre, Association of Pacific Rim Universities (APRU) Sustainable Waste Management Program Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea
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152
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Thiele-Bruhn S. The role of soils in provision of genetic, medicinal and biochemical resources. Philos Trans R Soc Lond B Biol Sci 2021; 376:20200183. [PMID: 34365823 DOI: 10.1098/rstb.2020.0183] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Intact, 'healthy' soils provide indispensable ecosystem services that largely depend on the biotic activity. Soil health is connected with human health, yet, knowledge of the underlying soil functioning remains incomplete. This review highlights selected services, i.e. (i) soil as a genetic resource and hotspot of biodiversity, forming the basis for providing (ii) biochemical resources and (iii) medicinal services and goods. Soils harbour an unrivalled biodiversity of organisms, especially microorganisms. Some of the abilities of autochthonous microorganisms and their relevant enzymes serve (i) to improve natural soil functions and in particular plant growth, e.g. through beneficial plant growth-promoting, symbiotic and mycorrhizal microorganisms, (ii) to act as biopesticides, (iii) to facilitate biodegradation of pollutants for soil bioremediation and (iv) to yield enzymes or chemicals for industrial use. Soils also exert direct effects on human health. Contact with soil enriches the human microbiome, affords protection against allergies and promotes emotional well-being. Medicinally relevant are soil substrates such as loams, clays and various minerals with curative effects as well as pharmaceutically active organic chemicals like antibiotics that are formed by soil microorganisms. By contrast, irritating minerals, soil dust inhalation and misguided soil ingestion may adversely affect humans. This article is part of the theme issue 'The role of soils in delivering Nature's Contributions to People.
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Affiliation(s)
- Sören Thiele-Bruhn
- Soil Science, University of Trier, Behringstrasse 21, D-54286 Trier, Germany
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153
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Espinosa-Ortiz EJ, Rene ER, Gerlach R. Potential use of fungal-bacterial co-cultures for the removal of organic pollutants. Crit Rev Biotechnol 2021; 42:361-383. [PMID: 34325585 DOI: 10.1080/07388551.2021.1940831] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Fungi and bacteria coexist in a wide variety of natural and artificial environments which can lead to their association and interaction - ranging from antagonism to cooperation - that can affect the survival, colonization, spatial distribution and stress resistance of the interacting partners. The use of polymicrobial cultivation approaches has facilitated a more thorough understanding of microbial dynamics in mixed microbial communities, such as those composed of fungi and bacteria, and their influence on ecosystem functions. Mixed (multi-domain) microbial communities exhibit unique associations and interactions that could result in more efficient systems for the degradation and removal of organic pollutants. Several previous studies have reported enhanced biodegradation of certain pollutants when using combined fungal-bacterial treatments compared to pure cultures or communities of either fungi or bacteria (single domain systems). This article reviews: (i) the mechanisms of pollutant degradation that can occur in fungal-bacterial systems (e.g.: co-degradation, production of secondary metabolites, enhancement of degradative enzyme production, and transport of bacteria by fungal mycelia); (ii) case studies using fungal-bacterial co-cultures for the removal of various organic pollutants (synthetic dyes, polycyclic aromatic hydrocarbons, pesticides, and other trace or volatile organic compounds) in different environmental matrices (e.g. water, gas/vapors, soil); (iii) the key aspects of engineering artificial fungal-bacterial co-cultures, and (iv) the current challenges and future perspectives of using fungal-bacterial co-cultures for environmental remediation.
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Affiliation(s)
- Erika J Espinosa-Ortiz
- Center for Biofilm Engineering, Montana State University, Bozeman, MT, USA.,Department of Chemical and Biological Engineering, Montana State University, Bozeman, MT, USA
| | - Eldon R Rene
- Department of Water Supply, Sanitary and Environmental Engineering, IHE Delft Institute for Water Education, 2601DA Delft, The Netherlands
| | - Robin Gerlach
- Center for Biofilm Engineering, Montana State University, Bozeman, MT, USA.,Department of Chemical and Biological Engineering, Montana State University, Bozeman, MT, USA
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154
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Microplastics accumulate fungal pathogens in terrestrial ecosystems. Sci Rep 2021; 11:13214. [PMID: 34267241 PMCID: PMC8282651 DOI: 10.1038/s41598-021-92405-7] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 06/03/2021] [Indexed: 02/05/2023] Open
Abstract
Microplastic (MP) is a pervasive pollutant in nature that is colonised by diverse groups of microbes, including potentially pathogenic species. Fungi have been largely neglected in this context, despite their affinity for plastics and their impact as pathogens. To unravel the role of MP as a carrier of fungal pathogens in terrestrial ecosystems and the immediate human environment, epiplastic mycobiomes from municipal plastic waste from Kenya were deciphered using ITS metabarcoding as well as a comprehensive meta-analysis, and visualised via scanning electron as well as confocal laser scanning microscopy. Metagenomic and microscopic findings provided complementary evidence that the terrestrial plastisphere is a suitable ecological niche for a variety of fungal organisms, including important animal and plant pathogens, which formed the plastisphere core mycobiome. We show that MPs serve as selective artificial microhabitats that not only attract distinct fungal communities, but also accumulate certain opportunistic human pathogens, such as cryptococcal and Phoma-like species. Therefore, MP must be regarded a persistent reservoir and potential vector for fungal pathogens in soil environments. Given the increasing amount of plastic waste in terrestrial ecosystems worldwide, this interrelation may have severe consequences for the trans-kingdom and multi-organismal epidemiology of fungal infections on a global scale.
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155
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Cowan AR, Costanzo CM, Benham R, Loveridge EJ, Moody SC. Fungal bioremediation of polyethylene: Challenges and perspectives. J Appl Microbiol 2021; 132:78-89. [PMID: 34218487 DOI: 10.1111/jam.15203] [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: 05/19/2021] [Revised: 06/18/2021] [Accepted: 06/30/2021] [Indexed: 11/28/2022]
Abstract
Plastics have become ubiquitous in both their adoption as materials and as environmental contaminants. Widespread pollution of these versatile, man-made and largely petroleum-derived polymers has resulted from their long-term mass production, inappropriate disposal and inadequate end of life management. Polyethylene (PE) is at the forefront of this problem, accounting for one-third of plastic demand in Europe in part due to its extensive use in packaging. Current recycling and incineration processes do not represent sustainable solutions to tackle plastic waste, especially once it becomes littered, and the development of new waste-management and remediation technologies are needed. Mycoremediation (fungal-based biodegradation) of PE has been the topic of several studies over the last two decades. The utility of these studies is limited by an inconclusive definition of biodegradation and a lack of knowledge regarding the biological systems responsible. This review highlights relevant features of fungi as potential bioremediation agents, before discussing the evidence for fungal biodegradation of both high- and low-density PE. An up-to-date perspective on mycoremediation as a future solution to PE waste is provided.
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Affiliation(s)
- Andrew R Cowan
- Faculty of Sport, Health and Social Science, Solent University, Southampton, UK
| | - Chiara M Costanzo
- Department of Chemistry, College of Science, Swansea University, Swansea, UK
| | - Robert Benham
- Faculty of Creative Industries, Architecture and Engineering, Solent University, Southampton, UK
| | - E Joel Loveridge
- Department of Chemistry, College of Science, Swansea University, Swansea, UK
| | - Suzy C Moody
- School of Life Sciences, Pharmacy and Chemistry, Faculty of Science, Engineering and Computing, Kingston University, Kingston-Upon-Thames, UK
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156
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Chlorpyrifos degradation using binary fungal strains isolated from industrial waste soil. Biologia (Bratisl) 2021. [DOI: 10.1007/s11756-021-00816-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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157
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Thulasinathan B, Jayabalan T, Sethupathi M, Kim W, Muniyasamy S, Sengottuvelan N, Nainamohamed S, Ponnuchamy K, Alagarsamy A. Bioelectricity generation by natural microflora of septic tank wastewater (STWW) and biodegradation of persistent petrogenic pollutants by basidiomycetes fungi: An integrated microbial fuel cell system. JOURNAL OF HAZARDOUS MATERIALS 2021; 412:125228. [PMID: 33516103 DOI: 10.1016/j.jhazmat.2021.125228] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/02/2020] [Accepted: 01/22/2021] [Indexed: 06/12/2023]
Abstract
The microbial fuel cell is a unique advantageous technology for the scientific community with the simultaneous generation of green energy along with bioelectroremediation of persistent hazardous materials. In this work, a novel approach of integrated system with bioelectricity generation from septic tank wastewater by native microflora in the anode chamber, while Psathyrella candolleana with higher ligninolytic enzyme activity was employed at cathode chamber for the biodegradation of polycyclic aromatic hydrocarbons (PAHs). Six MFC systems designated as MFC1, MFC2, MFC3, MFC4, MFC5, and MFC6 were experimented with different conditions. MFC1 system using natural microflora of STWW (100%) at anode chamber and K3[Fe(CN)6] as cathode buffer showed a power density and current density of 110 ± 10 mW/m2 and 90 ± 10 mA/m2 respectively. In the other five MFC systems 100% STWW was used at the anode and basidiomycetes fungi in the presence or absence of individual PAHs (naphthalene, acenaphthene, fluorene, and anthracene) at the cathode. MFC2, MFC3, MFC4, MFC5, and MFC6 had showed power density of 132 ± 17 mW/m2, 138 ± 20 mW/m2, 139 ± 25 mW/m2, and 147 ± 10 mW/m2 respectively. MFC2, MFC3, MFC4, MFC5, and MFC6 had showed current density of 497 ± 17 mA/m2, 519 ± 10 mA/m2, 522 ± 21 mA/m2 and 525 ± 20 mA/m2 respectively. In all the MFC systems, the electrochemical activity of anode biofilm was evaluated by cyclic voltammetry analysis and biofilms on all the MFC systems electrode surface were visualized by confocal laser scanning microscope. Biodegradation of PAHs during MFC experimentations in the cathode chamber was estimated by UV-Vis spectrophotometer. Overall, MFC6 system achieved maximum power density production of 525 ± 20 mA/m2 with 77% of chemical oxygen demand removal and 54% of coulombic efficiency at the anode chamber and higher anthracene biodegradation (62 ± 1.13%) at the cathode chamber by the selected Psathyrella candolleana at 14th day. The present natural microflora - basidiomycetes fungal coupled MFC system offers excellent opening towards the simultaneous generation of green electricity and PAHs bioelectroremediation.
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Affiliation(s)
- Boobalan Thulasinathan
- Bioenergy and Bioremediation Laboratory, Department of Microbiology, Alagappa University, Karaikudi, India
| | - Tamilmani Jayabalan
- Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli, India
| | - Murugan Sethupathi
- Department of Industrial Chemistry, Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | - Woong Kim
- Department of Environmental Engineering, Kyungpook National University, Daegu, South Korea
| | - Sudhakar Muniyasamy
- CSIR Materials Science and Manufacturing, Polymers and Composites Competence Area, P.O. Box 1124, Port Elizabeth 6000, South Africa; Department of Chemistry, Faculty of Science, Nelson Mandela Metropolitan University, P.O. Box 77000, Port Elizabeth 6031, South Africa
| | | | - Samsudeen Nainamohamed
- Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli, India
| | - Kumar Ponnuchamy
- Department of Animal Health and Management, Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | - Arun Alagarsamy
- Bioenergy and Bioremediation Laboratory, Department of Microbiology, Alagappa University, Karaikudi, India.
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158
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Varghese EM, P. A, M. S. J. Strategies in microbial degradation enhancement of chlorpyrifos – a review based on the primary approaches in soil bioremediation. BIOCATAL BIOTRANSFOR 2021. [DOI: 10.1080/10242422.2021.1939693] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | - Aswani P.
- School of Biosciences, Mahatma Gandhi University, Kottayam, India
| | - Jisha M. S.
- School of Biosciences, Mahatma Gandhi University, Kottayam, India
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159
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Tannery Wastewater Recalcitrant Compounds Foster the Selection of Fungi in Non-Sterile Conditions: A Pilot Scale Long-Term Test. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18126348. [PMID: 34208177 PMCID: PMC8296185 DOI: 10.3390/ijerph18126348] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/08/2021] [Accepted: 06/08/2021] [Indexed: 11/23/2022]
Abstract
This study demonstrated that a microbial community dominated by fungi can be selected and maintained in the long-term under non-sterile conditions, in a pilot-scale packed-bed reactor fed with tannery wastewater. During the start-up phase, the reactor, filled with 0.6 m3 of polyurethane foam cubes, was inoculated with a pure culture of Aspergillus tubingensis and Quebracho tannin, a recalcitrant compound widely used by tannery industry, was used as sole carbon source in the feeding. During the start-up, fungi grew attached as biofilm in carriers that filled the packed-bed reactor. Subsequently, the reactor was tested for the removal of chemical oxygen demand (COD) from an exhaust tanning bath collected from tanneries. The entire experiment lasted 121 days and average removals of 29% and 23% of COD and dissolved organic carbon (DOC) from the tannins bath were achieved, respectively. The evolution of the microbial consortium (bacteria and fungi) was described through biomolecular analyses along the experiment and also developed as a function of the size of the support media.
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160
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Becarelli S, Chicca I, La China S, Siracusa G, Bardi A, Gullo M, Petroni G, Levin DB, Di Gregorio S. A New Ciboria sp. for Soil Mycoremediation and the Bacterial Contribution to the Depletion of Total Petroleum Hydrocarbons. Front Microbiol 2021; 12:647373. [PMID: 34177829 PMCID: PMC8221241 DOI: 10.3389/fmicb.2021.647373] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 04/26/2021] [Indexed: 11/24/2022] Open
Abstract
A Ciboria sp. strain (Phylum Ascomycota) was isolated from hydrocarbon-polluted soil of an abandoned oil refinery in Italy. The strain was able to utilize diesel oil as a sole carbon source for growth. Laboratory-scale experiments were designed to evaluate the use of this fungal strain for treatment of the polluted soil. The concentration of total petroleum hydrocarbons (TPH) in the soil was 8,538 mg/kg. Mesocosms containing the contaminated soil were inoculated with the fungal strain at 1 or 7%, on a fresh weight base ratio. After 90 days of incubation, the depletion of TPH contamination was of 78% with the 1% inoculant, and 99% with the 7% inoculant. 16S rDNA and ITS metabarcoding of the bacterial and fungal communities was performed in order to evaluate the potential synergism between fungi and bacteria in the bioremediation process. The functional metagenomic prediction indicated Arthrobacter, Dietzia, Brachybacerium, Brevibacterium, Gordonia, Leucobacter, Lysobacter, and Agrobacterium spp. as generalist saprophytes, essential for the onset of hydrocarbonoclastic specialist bacterial species, identified as Streptomyces, Nocardoides, Pseudonocardia, Solirubrobacter, Parvibaculum, Rhodanobacter, Luteiomonas, Planomicrobium, and Bacillus spp., involved in the TPH depletion. The fungal metabolism accelerated the onset of specialist over generalist bacteria. The capacity of the Ciboria sp. to deplete TPH in the soil in treatment was also ascertained.
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Affiliation(s)
- Simone Becarelli
- Department of Biology, University of Pisa, Pisa, Italy.,BD Biodigressioni, Pisa, Italy
| | - Ilaria Chicca
- Department of Biology, University of Pisa, Pisa, Italy.,Department of Biosystem Engineering, University of Manitoba, Winnipeg, MB, Canada
| | - Salvatore La China
- Department of Life Sciences, University of Modena and Reggio-Emilia, Reggio Emilia, Italy
| | | | - Alessandra Bardi
- Department of Civil and Environmental Engineering, University of Florence, Florence, Italy
| | - Maria Gullo
- Department of Life Sciences, University of Modena and Reggio-Emilia, Reggio Emilia, Italy
| | | | - David Bernard Levin
- BD Biodigressioni, Pisa, Italy.,Department of Biosystem Engineering, University of Manitoba, Winnipeg, MB, Canada
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161
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Chen M, Li Y, Jiang X, Zhao D, Liu X, Zhou J, He Z, Zheng C, Pan X. Study on soil physical structure after the bioremediation of Pb pollution using microbial-induced carbonate precipitation methodology. JOURNAL OF HAZARDOUS MATERIALS 2021; 411:125103. [PMID: 33858089 DOI: 10.1016/j.jhazmat.2021.125103] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 12/25/2020] [Accepted: 01/07/2021] [Indexed: 06/12/2023]
Abstract
Soil structure is an important index to evaluate soil quality; however, previous researchers have only paid attention to the effect and economic benefits of soil heavy metal remediation. In this study, microbial-induced carbonate precipitation (MICP) technology was used to remediate soil Pb pollution, and its effect on soil structure was studied by sieving and X-ray computed tomography techniques. The results showed that the leaching amount of heavy metals in soil decreased by 76.34% after remediation. Interestingly, due to the addition of organic matter and microorganisms, the soil particle size changed from microaggregates to large aggregates, and the large soil particle size (diameter > 2 mm) increased significantly by 71.43%. The soil porosity increased by 73.78%, which enhanced the soil permeability and increased the soil hydraulic conductivity. Therefore, MICP bioremediation not only remediated soil heavy metal pollution but also promoted the soil aggregation structure, which has important significance for soil remediation and improvement.
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Affiliation(s)
- Minjie Chen
- School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, People's Republic of China; Inner Mongolia Engineering Research Center of Evaluation and Restoration in the Mining Ecological Environments, Baotou 014010, People's Republic of China
| | - Yafei Li
- School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, People's Republic of China; Inner Mongolia Engineering Research Center of Evaluation and Restoration in the Mining Ecological Environments, Baotou 014010, People's Republic of China
| | - Xiaoru Jiang
- School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, People's Republic of China; Inner Mongolia Engineering Research Center of Evaluation and Restoration in the Mining Ecological Environments, Baotou 014010, People's Republic of China
| | - Dingran Zhao
- School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, People's Republic of China; Inner Mongolia Engineering Research Center of Evaluation and Restoration in the Mining Ecological Environments, Baotou 014010, People's Republic of China
| | - Xuefeng Liu
- School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, People's Republic of China; Inner Mongolia Engineering Research Center of Evaluation and Restoration in the Mining Ecological Environments, Baotou 014010, People's Republic of China
| | - Jianlin Zhou
- School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, People's Republic of China; Inner Mongolia Engineering Research Center of Evaluation and Restoration in the Mining Ecological Environments, Baotou 014010, People's Republic of China
| | - Zhanfei He
- Zhejiang University of Technology Zhejiang Univ Technol, Coll Environm, Key Lab Microbial Technol Ind Pollut Control Zhej, Hangzhou 310014, People's Republic of China
| | - Chunli Zheng
- School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, People's Republic of China; Inner Mongolia Engineering Research Center of Evaluation and Restoration in the Mining Ecological Environments, Baotou 014010, People's Republic of China; Key Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources, Baotou 014010, People's Republic of China.
| | - Xiangliang Pan
- Zhejiang University of Technology Zhejiang Univ Technol, Coll Environm, Key Lab Microbial Technol Ind Pollut Control Zhej, Hangzhou 310014, People's Republic of China.
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162
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Ramdass AC, Rampersad SN. Diversity and Oil Degradation Potential of Culturable Microbes Isolated from Chronically Contaminated Soils in Trinidad. Microorganisms 2021; 9:1167. [PMID: 34071489 PMCID: PMC8230346 DOI: 10.3390/microorganisms9061167] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 05/24/2021] [Accepted: 05/26/2021] [Indexed: 11/29/2022] Open
Abstract
Trinidad and Tobago is the largest producer of oil and natural gas in Central America and the Caribbean. Natural crude oil seeps, in addition to leaking petroleum pipelines, have resulted in chronic contamination of the surrounding terrestrial environments since the time of petroleum discovery, production, and refinement in Trinidad. In this study, we isolated microbes from soils chronically contaminated with crude oil using a culture-dependent approach with enrichment. The sampling of eight such sites located in the southern peninsula of Trinidad revealed a diverse microbial composition and novel oil-degrading filamentous fungi and yeast as single-isolate degraders and naturally occurring consortia, with specific bacterial species not previously reported in the literature. Multiple sequence comparisons and phylogenetic analyses confirmed the identity of the top degraders. The filamentous fungal community based on culturable species was dominated by Ascomycota, and the recovered yeast isolates were affiliated with Basidiomycota (65.23%) and Ascomycota (34.78%) phyla. Enhanced biodegradation of petroleum hydrocarbons is maintained by biocatalysts such as lipases. Five out of seven species demonstrated extracellular lipase activity in vitro. Our findings could provide new insights into microbial resources from chronically contaminated terrestrial environments, and this information will be beneficial to the bioremediation of petroleum contamination and other industrial applications.
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Affiliation(s)
| | - Sephra N. Rampersad
- Biochemistry Research Laboratory (Rm216), Department of Life Sciences, Faculty of Science and Technology, The University of the West Indies, Trinidad and Tobago, West Indies;
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163
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Varrella S, Barone G, Tangherlini M, Rastelli E, Dell’Anno A, Corinaldesi C. Diversity, Ecological Role and Biotechnological Potential of Antarctic Marine Fungi. J Fungi (Basel) 2021; 7:jof7050391. [PMID: 34067750 PMCID: PMC8157204 DOI: 10.3390/jof7050391] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/07/2021] [Accepted: 05/13/2021] [Indexed: 11/28/2022] Open
Abstract
The Antarctic Ocean is one of the most remote and inaccessible environments on our planet and hosts potentially high biodiversity, being largely unexplored and undescribed. Fungi have key functions and unique physiological and morphological adaptations even in extreme conditions, from shallow habitats to deep-sea sediments. Here, we summarized information on diversity, the ecological role, and biotechnological potential of marine fungi in the coldest biome on Earth. This review also discloses the importance of boosting research on Antarctic fungi as hidden treasures of biodiversity and bioactive molecules to better understand their role in marine ecosystem functioning and their applications in different biotechnological fields.
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Affiliation(s)
- Stefano Varrella
- Department of Materials, Environmental Sciences and Urban Planning, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
- Correspondence: (S.V.); (C.C.)
| | - Giulio Barone
- Institute for Biological Resources and Marine Biotechnologies, National Research Council (IRBIM-CNR), Largo Fiera della Pesca, 60125 Ancona, Italy;
| | - Michael Tangherlini
- Department of Research Infrastructures for Marine Biological Resources, Stazione Zoologica “Anton Dohrn”, Fano Marine Centre, Viale Adriatico 1-N, 61032 Fano, Italy;
| | - Eugenio Rastelli
- Department of Marine Biotechnology, Stazione Zoologica “Anton Dohrn”, Fano Marine Centre, Viale Adriatico 1-N, 61032 Fano, Italy;
| | - Antonio Dell’Anno
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy;
| | - Cinzia Corinaldesi
- Department of Materials, Environmental Sciences and Urban Planning, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
- Correspondence: (S.V.); (C.C.)
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164
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Xavier Senra MV, Fonseca AL. New tyrosinases with putative action against contaminants of emerging concern. Proteins 2021; 89:1180-1192. [PMID: 33969540 DOI: 10.1002/prot.26139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 03/16/2021] [Accepted: 04/30/2021] [Indexed: 11/07/2022]
Abstract
Tyrosinases (EC 1.14.18.1) are type-3 copper metalloenzymes with strong oxidative capacities and low allosteric selectivity to phenolic and non-phenolic aromatic compounds, which have been used as biosensors and biocatalysts to mitigate the impacts of environmental contaminants over aquatic ecosystems. However, the widespread use of these polyphenol oxidases is limited by elevated production costs and restricted knowledge on their spectrum of action. Here, six tyrosinase homologs were identified and characterized from the genomes of four widespread freshwater ciliates using bioinformatics. Next, we performed a virtual screening to calculate binding energies between 3D models of these homologs and ~ 1000 contaminants of emerging concern (CECs), as an indirect approach to identify likely and unlikely targets for tyrosinases. Many fine chemicals, pharmaceuticals, personal care products, illicit drugs, natural toxins, and pesticides exhibited strong binding energies to these new tyrosinases, suggesting the spectrum of targets of these enzymes might be considerably broader than previously thought. Many ciliates, including those carrying tyrosinase genes, are fast-growing unicellular microeukaryotes that can be efficiently cultured, at large scales, under in vitro conditions, suggesting these organisms should be regarded as potential low-cost sources of new environmental biotechnological molecules.
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Affiliation(s)
| | - Ana Lúcia Fonseca
- Instituto de Recursos Naturais, Universidade Federal de Itajubá, Itajubá, Minas Gerais, Brazil
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165
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Black Fungi and Hydrocarbons: An Environmental Survey for Alkylbenzene Assimilation. Microorganisms 2021; 9:microorganisms9051008. [PMID: 34067085 PMCID: PMC8151820 DOI: 10.3390/microorganisms9051008] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 04/30/2021] [Accepted: 05/03/2021] [Indexed: 11/25/2022] Open
Abstract
Environmental pollution with alkylbenzene hydrocarbons such as toluene is a recurring phenomenon. Their toxicity and harmful effect on people and the environment drive the search for sustainable removal techniques such as bioremediation, which is based on the microbial metabolism of xenobiotic compounds. Melanized fungi present extremophilic characteristics, which allow their survival in inhospitable habitats such as those contaminated with hydrocarbons. Screening methodologies for testing the microbial assimilation of volatile organic compounds (VOC) are scarce despite their importance for the bioremediation of hydrocarbon associated areas. In this study, 200 strains of melanized fungi were isolated from four different hydrocarbon-related environments by using selective methods, and their biodiversity was assessed by molecular and ecological analyses. Seventeen genera and 27 species from three main orders, namely Chaetothyriales, Cladosporiales, and Pleosporales, were identified. The ecological analysis showed a particular species distribution according to their original substrate. The isolated strains were also screened for their toluene assimilation potential using a simple and inexpensive methodology based on miniaturized incubations under controlled atmospheres. The biomass produced by the 200 strains with toluene as the sole carbon source was compared against positive and negative controls, with glucose and with only mineral medium, respectively. Nineteen strains were selected as the most promising for further investigation on the biodegradation of alkylbenzenes.
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166
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García-Vara M, Hu K, Postigo C, Olmo L, Caminal G, Sarrà M, López de Alda M. Remediation of bentazone contaminated water by Trametes versicolor: Characterization, identification of transformation products, and implementation in a trickle-bed reactor under non-sterile conditions. JOURNAL OF HAZARDOUS MATERIALS 2021; 409:124476. [PMID: 33243640 DOI: 10.1016/j.jhazmat.2020.124476] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 10/10/2020] [Accepted: 11/02/2020] [Indexed: 06/11/2023]
Abstract
Bentazone, an herbicide widely applied in rice and cereal crops, is widespread in the aquatic environment. This study evaluated the capacity of Trametes versicolor to remove bentazone from water. The fungus was able to completely remove bentazone after three days at Erlenmeyer-scale incubation. Both laccase and cytochrome P450 enzymatic systems were involved in bentazone degradation. A total of 19 transformation products (TPs) were identified to be formed during the process. The reactions involved in their formation included hydroxylations, oxidations, methylations, N-nitrosation, and dimerization. A laccase mediated radical mechanism was proposed for TP formation. In light of the results obtained at the Erlenmeyer scale, a trickle-bed reactor with T. versicolor immobilized on pine wood chips was set up to evaluate its stability during bentazone removal under non-sterile conditions. After 30 days of sequencing batch operation, an average bentazone removal of 48% was obtained, with a considerable contribution of adsorption onto the lignocellulosic support material. Bacterial contamination, which is the bottleneck in the implementation of fungal bioreactors, was successfully addressed by this particular system according to its maintained performance. This research is a pioneering step forward to the implementation of fungal bioremediation on a real scale.
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Affiliation(s)
- Manuel García-Vara
- Water, Environmental and Food Chemistry Unit (ENFOCHEM), Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA), Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Kaidi Hu
- Departament d'Enginyeria Química, Biològica i Ambiental, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
| | - Cristina Postigo
- Water, Environmental and Food Chemistry Unit (ENFOCHEM), Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA), Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain.
| | - Lluc Olmo
- Departament d'Enginyeria Química, Biològica i Ambiental, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
| | - Gloria Caminal
- Institut de Química Avançada de Catalunya (IQAC), CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Montserrat Sarrà
- Departament d'Enginyeria Química, Biològica i Ambiental, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
| | - Miren López de Alda
- Water, Environmental and Food Chemistry Unit (ENFOCHEM), Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA), Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain.
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167
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Geetha N, Bhavya G, Abhijith P, Shekhar R, Dayananda K, Jogaiah S. Insights into nanomycoremediation: Secretomics and mycogenic biopolymer nanocomposites for heavy metal detoxification. JOURNAL OF HAZARDOUS MATERIALS 2021; 409:124541. [PMID: 33223321 DOI: 10.1016/j.jhazmat.2020.124541] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 10/02/2020] [Accepted: 11/06/2020] [Indexed: 05/21/2023]
Abstract
Our environment thrives on the subtle balance achieved by the forever cyclical nature of building and rebuilding life through natural processes. Fungi, being the evident armor of bioremediation, is the indispensable element of the soil food web, contribute to be the nature's most dynamic arsenal with non-specific enzymes like peroxidase (POX), glutathione peroxidase (GPx), catalase (CAT), superoxide dismutase (SOD), non-enzymatic compounds like thiol (-SH) groups and non-protein compounds such as glutathione (GSH) and metallothionein (MT). Recently, the area of nanomycoremediation has been gaining momentum as a powerful tool for environmental clean-up strategies with its ability to detoxify heavy metals with its unique characteristics to adapt mechanisms such as biosorption, bioconversion, and biodegradation to harmless end products. The insight into the elaborate secretomic processes provides us with huge opportunities for creating a magnificent living bioremediation apparatus. This review discusses the scope and recent advances in the lesser understood area, nanomycoremediation, the state-of-the-art, innovative, cost-effective and promising tool for detoxification of heavy metal pollutants and focuses on the metabolic capabilities and secretomics with nanobiotechnological interventions.
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Affiliation(s)
- Nagaraja Geetha
- Nanobiotechnology Laboratory, Department of Studies in Biotechnology, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
| | - Gurulingaiah Bhavya
- Nanobiotechnology Laboratory, Department of Studies in Biotechnology, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
| | - Padukana Abhijith
- Nanobiotechnology Laboratory, Department of Studies in Biotechnology, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
| | - Ravikant Shekhar
- Nanobiotechnology Laboratory, Department of Studies in Biotechnology, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
| | - Karigowda Dayananda
- Nanobiotechnology Laboratory, Department of Studies in Biotechnology, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
| | - Sudisha Jogaiah
- Laboratory of Plant Healthcare and Diagnostics, P.G. Department of Biotechnology and Microbiology, Karnatak University, Dharwad 580003, Karnataka, India.
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168
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Madadi R, Bester K. Fungi and biochar applications in bioremediation of organic micropollutants from aquatic media. MARINE POLLUTION BULLETIN 2021; 166:112247. [PMID: 33735702 DOI: 10.1016/j.marpolbul.2021.112247] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 02/10/2021] [Accepted: 03/03/2021] [Indexed: 06/12/2023]
Abstract
The conventional wastewater treatment system such as bacteria, is not able to remove recalcitrant micropollutants effectively. While, fungi have shown high capacity in degradation of recalcitrant compounds. Biochar, on the other hand, has gained attention in water and wastewater treatment as a low cost and sustainable adsorbent. This paper aims to review the recent applications of three major fungal divisions including Basidiomycota, Ascomycota, and Mucoromycotina, in organic micropollutants removal from wastewater. Moreover, it presents an insight into fungal bioreactors, fungal biofilm and immobilization system. Biochar adsorption capacities for organic micropollutants removal under different operating conditions are summarized. Finally, few recommendations for further research are established in the context of the combination of fungal biofilm with the technologies relying on the adsorption by porous carbonaceous materials.
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Affiliation(s)
- Rozita Madadi
- Department of agricultural biotechnology, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran.
| | - Kai Bester
- Department of Environmental Science, Aarhus University, Frederiksborgsvej 399, Roskilde 4000, Denmark; WATEC - Centre for Water Technology, Aarhus University, Ny Munkegade 120, Aarhus 8000, Denmark
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169
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Ahumada-Rudolph R, Novoa V, Becerra J, Cespedes C, Cabrera-Pardo JR. Mycoremediation of oxytetracycline by marine fungi mycelium isolated from salmon farming areas in the south of Chile. Food Chem Toxicol 2021; 152:112198. [PMID: 33857548 DOI: 10.1016/j.fct.2021.112198] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/10/2021] [Accepted: 04/06/2021] [Indexed: 11/18/2022]
Abstract
Antibiotics are extensively used for growth promotion purposes in intensive aquaculture. In Chile, the use of antibiotics in salmon farming is excessive, approximately 62 times more than is used in Norway. In the salmon industry, antibiotics such as oxytetracycline (OTC) are administered in the diet, both in the juvenile stage in freshwater and in the fattening process of salmon in marine sectors. We have investigated the fjords of Chile, where many salmon farms are located, searching for fungi able to degrade this tetracycline antibiotic. We have evaluated the OTC degradation ability of the following; Penicillium commune, Epicoccum nigrum, Trichoderma harzianum, Aspergillus terreus and Beauveria bassiana, isolated from sediments in salmon farms from southern Chile. In all these fungal strains, the amount of OTC decreased in the culture medium, as adsorbed in the mycelia, after the third day of exposure. These strains were capable of degrading OTC at remarkable rates up to 78%, by the 15th day. This is the first study showing that the mycelium of these fungal strains has the ability to degrade OTC. We believe the knowledge produced by these results has the potential to serve as a basis for implementing a bioremediation process in the near future.
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Affiliation(s)
- Ramón Ahumada-Rudolph
- Laboratorio de Química Aplicada y Sustentable, Departamento de Química, Facultad de Ciencias, Universidad del Bío-Bío, Avenida Collao, 1202, PO Box 5-C, Concepción, Chile
| | - Vanessa Novoa
- Department of Spatial Planning, School of Environmental Sciences, EULA Center, Universidad de Concepción, Víctor Lamas, 1290, PO Box 160-C., Concepción, Chile; Centro de recursos hídricos para la agricultura y la minería, Fondap CRHIAM, Universidad de Concepción, Concepción, PC, 4070411, Chile
| | - Julio Becerra
- Laboratorio de Química Aplicada y Sustentable, Departamento de Química, Facultad de Ciencias, Universidad del Bío-Bío, Avenida Collao, 1202, PO Box 5-C, Concepción, Chile
| | - Carlos Cespedes
- Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad del Bío-Bío, Avenida Collao, 1202, PO Box 5-C, Concepción, Chile
| | - Jaime R Cabrera-Pardo
- Laboratorio de Química Aplicada y Sustentable, Departamento de Química, Facultad de Ciencias, Universidad del Bío-Bío, Avenida Collao, 1202, PO Box 5-C, Concepción, Chile; Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, UT, 84112, USA.
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170
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Sanchez-Hernandez JC, Ro KS, Szogi AA, Chang S, Park B. Earthworms increase the potential for enzymatic bio-activation of biochars made from co-pyrolyzing animal manures and plastic wastes. JOURNAL OF HAZARDOUS MATERIALS 2021; 408:124405. [PMID: 33168317 DOI: 10.1016/j.jhazmat.2020.124405] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 10/26/2020] [Accepted: 10/26/2020] [Indexed: 06/11/2023]
Abstract
We assessed the enzymatic activation of four different biochars produced from pyrolyzing swine manure and poultry litter, and by co-pyrolyzing these livestock residues with agricultural spent mulch plastic film wastes (plastichars). Enzymatic activation consisted of incubating biochars in soil inoculated with earthworms (Lumbricus terrestris), which acted as biological vectors to facilitate retention of extracellular enzymes onto biochar surface. The activity of carboxylesterase ‒a pesticide-detoxifying enzyme‒ was measured in non-bioturbed soils (reference), linings of the burrows created by earthworms, casts (feces) and biochar particles recovered from the soil. Our results revealed that: 1) biochar increased soil carboxylesterase activity respect to biochar-free (control) soils, which was more prominent in the presence of earthworms. 2) The maximum enzyme activity was found in soils amended with plastichars. 3) The plastichars showed higher enzyme binding capacities than that of the biochars produced from animal manure alone, corroborating the pattern of enzyme distribution found in soil. 4) The presence of earthworms in soil significantly increased the potential of the plastichars for enzymatic activation. These findings suggest that the plastichars are suitable for increasing and stabilizing soil enzyme activities with no toxicity on earthworms.
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Affiliation(s)
- Juan C Sanchez-Hernandez
- Laboratory of Ecotoxicology, Institute of Environmental Sciences, University of Castilla-La Mancha, 45071 Toledo, Spain.
| | - Kyoung S Ro
- Coastal Plains Soil, Water & Plant Research Center, Agricultural Research Service, US Department of Agriculture, 2611 West Lucas Street, Florence, SC 29501, USA
| | - Ariel A Szogi
- Coastal Plains Soil, Water & Plant Research Center, Agricultural Research Service, US Department of Agriculture, 2611 West Lucas Street, Florence, SC 29501, USA
| | - Sechin Chang
- Souther Regional Research Center, Agricultural Research Service, US Department of Agriculture, 1100 Robert E. Lee Blvd., New Orleans, LA 70124, USA
| | - Bosoon Park
- National Poultry Research Center, Quality and Safety Assessment Research Unit, 950 College Station Road, Athens, GA 30605, USA
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171
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Dao ATN, Smits M, Dang HTC, Brouwer A, de Boer TE. Elucidating fungal Rigidoporus species FMD21 lignin-modifying enzyme genes and 2,3,7,8-tetrachlorodibenzo-p-dioxin degradation by laccase isozymes. Enzyme Microb Technol 2021; 147:109800. [PMID: 33992406 DOI: 10.1016/j.enzmictec.2021.109800] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 02/24/2021] [Accepted: 04/05/2021] [Indexed: 01/17/2023]
Abstract
White-rot fungus Rigidoporus sp. FMD21 is a lignin-modifying enzyme producing fungus that can degrade dioxin. Extracellular enzymes from FMD21 include laccase and manganese peroxidase which are promising enzymes for myco-remediation because of their wide substrate specificity and mild catalysis conditions. The FMD21 genome was sequenced using Ion Torrent technology and consists of 38.98 Mbps with a GC content of 47.4 %. Gene prediction using Augustus with Basidiomycota reference setting resulted in 8245 genes. Functional gene annotations were carried out by using several programs and databases. We focused on laccase and ligninolytic peroxidase genes, which are most likely involved in the degradation of aromatic pollutants. The genome of FMD21 contains 12 predicted laccase genes (10 out of 12 predicted as full length) and 13 putative ligninolytic peroxidases which were annotated as MnP or versatile peroxidases. Four predicted laccases showed a higher than 65 % binding chance to 2,3,7,8-TCDD with the highest at 72 % in in silico docking analysis. Heterologous expressed laccases showed activity towards three tested substrates included ABTS, guaiacol and 2,6-DMP. ABTS displayed two-stage oxidation which differed from natural FMD21 laccases. 2,3,7,8-TCDD was degraded by 50 % after two weeks of enzymatic treatment by three out of five laccase isozymes which were natural laccases secreted by FMD21. In this study, we provide direct evidence for the 2,3,7,8-TCDD biodegradation capability of fungal laccases.
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Affiliation(s)
- Anh T N Dao
- MicroLife Solutions, Science Park 406, 1098XH, Amsterdam, the Netherlands; Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam; Department of Ecological Science, Vrije Universiteit Amsterdam. De Boelelaan 1085, 1081 HV, Amsterdam, the Netherlands.
| | - Miriam Smits
- MicroLife Solutions, Science Park 406, 1098XH, Amsterdam, the Netherlands
| | - Ha T C Dang
- Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Abraham Brouwer
- MicroLife Solutions, Science Park 406, 1098XH, Amsterdam, the Netherlands; Department of Ecological Science, Vrije Universiteit Amsterdam. De Boelelaan 1085, 1081 HV, Amsterdam, the Netherlands; BioDetection Systems, Science Park 406, 1098XH, Amsterdam, the Netherlands
| | - Tjalf E de Boer
- MicroLife Solutions, Science Park 406, 1098XH, Amsterdam, the Netherlands.
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172
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Pereira JCV, Serbent MP, Skoronski E. Application of immobilized mycelium-based pellets for the removal of organochlorine compounds: a review. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 83:1781-1796. [PMID: 33905352 DOI: 10.2166/wst.2021.093] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Organochlorines have diverse structures and applications and are included in the list of persistent organic pollutants (POPs) due to their toxicity and environmental persistence. The reduced capacity of conventional wastewater treatment plants to remove these compounds encourages the development of cost-effective and efficient remediation approaches. Fungal biotechnology can contribute to the development of these technologies through their enzymatic machinery but faces several drawbacks related to the use of dispersed mycelium. In this sense, investigations concerning the degradation of organochlorines using immobilized fungi demonstrated an increase in contaminant removal efficiency compared with degradation by free cells. Despite this interest, the mechanisms of immobilized fungi have not been comprehensively reviewed. In this paper, recent advances of laboratory and field studies in organochlorine compounds removal by fungi are reviewed, focusing on the role of immobilization techniques. Firstly, the mechanisms of organochlorines bioconversion by fungi and the factors affecting enzyme activity are elucidated and discussed in detail. Then, the main targeted compounds, fungi, technics, and materials used for immobilization are discussed, as well as their advantages and limitations. Furthermore, critical points for future studies of fungi immobilization for organochlorine removal are proposed.
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Affiliation(s)
- J C V Pereira
- Department of Sanitary Engineering, State University of Santa Catarina, 2822 Dr Getúlio Vargas Road, Ibirama, Brazil E-mail:
| | - M P Serbent
- Department of Sanitary Engineering, State University of Santa Catarina, 2822 Dr Getúlio Vargas Road, Ibirama, Brazil E-mail:
| | - E Skoronski
- Department of Environmental and Sanitary Engineering, State University of Santa Catarina, 2090 Luís de Camões Avenue, Lages, Brazil
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173
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Kumar A, Subrahmanyam G, Mondal R, Cabral-Pinto MMS, Shabnam AA, Jigyasu DK, Malyan SK, Fagodiya RK, Khan SA, Kumar A, Yu ZG. Bio-remediation approaches for alleviation of cadmium contamination in natural resources. CHEMOSPHERE 2021; 268:128855. [PMID: 33199107 DOI: 10.1016/j.chemosphere.2020.128855] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 10/26/2020] [Accepted: 10/31/2020] [Indexed: 05/27/2023]
Abstract
Cadmium (Cd) is a harmful heavy metal that can cause potent environmental and health hazards at different trophic levels through food chain. Cd is relatively non-biodegradable and persists for a long time in the environment. Considering the potential toxicity and non-biodegradability of Cd in the environment as well as its health hazards, this is an urgent issue of international concern that needs to be addressed by implicating suitable remedial approaches. The current article specifically attempts to review the different biological approaches for remediation of Cd contamination in natural resources. Further, bioremediation mechanisms of Cd by microbes such as bacteria, fungi, algae are comprehensively discussed. Studies indicate that heavy metal resistant microbes can be used as suitable biosorbents for the removal of Cd (up to 90%) in the natural resources. Soil-to-plant transfer coefficient (TC) of Cd ranges from 3.9 to 3340 depending on the availability of metal to plants and also on the type of plant species. The potential phytoremediation strategies for Cd removal and the key factors influencing bioremediation process are also emphasized. Studies on molecular mechanisms of transgenic plants for Cd bioremediation show immense potential for enhancing Cd phytoremediation efficiency. Thus, it is suggested that nano-technological based integrated bioremediation approaches could be a potential futuristic path for Cd decontamination in natural resources. This review would be highly useful for the biologists, chemists, biotechnologists and environmentalists to understand the long-term impacts of Cd on ecology and human health so that potential remedial measures could be taken in advance.
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Affiliation(s)
- Amit Kumar
- School of Hydrology and Water Resources, Nanjing University of Information Science and Technology, Nanjing, Jiangsu, 210044, China.
| | - Gangavarapu Subrahmanyam
- Central Muga Eri Research and Training Institute, Central Silk Board, Jorhat, Assam, 785700, India.
| | - Raju Mondal
- Central Sericultural Germplasm Resources Centre (CSGRC), Central Silk Board, Ministry of Textiles, Thally Road, Hosur, Tamil Nadu, 635109, India.
| | - M M S Cabral-Pinto
- Geobiotec Research Centre, Department of Geosciences, University of Aveiro, 3810-193, Aveiro, Portugal.
| | - Aftab A Shabnam
- Central Muga Eri Research and Training Institute, Central Silk Board, Jorhat, Assam, 785700, India.
| | - Dharmendra K Jigyasu
- Central Muga Eri Research and Training Institute, Central Silk Board, Jorhat, Assam, 785700, India.
| | - Sandeep K Malyan
- Research Management and Outreach Division, National Institute of Hydrology, Jalvigyan Bhawan, Roorkee, Uttarakhand, 247667, India.
| | - Ram Kishor Fagodiya
- Division of Irrigation and Drainage Engineering, ICAR-Central Soil Salinity Research Institute, Karnal, Haryana, 132001, India.
| | - Shakeel A Khan
- Centre for Environment Science and Climate Resilient Agriculture, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
| | - Amit Kumar
- Central Muga Eri Research and Training Institute, Central Silk Board, Jorhat, Assam, 785700, India.
| | - Zhi-Guo Yu
- School of Hydrology and Water Resources, Nanjing University of Information Science and Technology, Nanjing, Jiangsu, 210044, China.
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174
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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: 30] [Impact Index Per Article: 10.0] [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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175
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Benitez SF, Sadañoski MA, Velázquez JE, Zapata PD, Fonseca MI. Comparative study of single cultures and a consortium of white rot fungi for polychlorinated biphenyls treatment. J Appl Microbiol 2021; 131:1775-1786. [PMID: 33725409 DOI: 10.1111/jam.15073] [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: 06/05/2020] [Revised: 02/03/2021] [Accepted: 03/05/2021] [Indexed: 12/20/2022]
Abstract
AIMS To evaluate the mycoremediation of polychlorinated biphenyls (PCBs) by either single cultures or binary consortia of Pleurotus pulmonarius LBM 105 and Trametes sanguinea LBM 023. METHODS AND RESULTS PCBs tolerance, removal capacity, toxicity reduction and ligninolytic enzyme expression were assessed when growing single culture and binary consortium of fungus in 217 mg l-1 of a technical mixture of Aroclor 1242, 1254 and 1260 in transformer oil. A decrease in tolerance and variation in ligninolytic enzyme secretion were observed in PCB-amended solid media. Pleurotus pulmonarius LBM 105 mono-culture was able to remove up to 95·4% of PCBs, whereas binary consortium and T. sanguinea LBM 023 could biodegrade about 55% after 24 days. Significant detoxification levels were detected in all treatments by biosorption mechanism. CONCLUSIONS Pleurotus pulmonarius LBM 105 in single culture had the best performance regarding PCBs biodegradation and toxicity reduction. Ligninolytic enzyme secretion changed in co-culture. SIGNIFICANCE AND IMPACT OF THE STUDY The evaluation of PCBs bioremediation effectiveness of basidiomycetes consortium in terms of PCB removal, toxicity and ligninolytic enzyme production to unravel the differences between using individual cultures or consortium has not been reported. The results from this study enable the selection of P. pulmonarius LBM 105 mono-culture to bioremediate PCBs as it showed higher efficiency compared to binary consortium with T. sanguinea LBM 023 for potential decontamination of PCB-contaminated transformer oil.
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Affiliation(s)
- S F Benitez
- Laboratorio de Biotecnología Molecular, Instituto de Biotecnología Misiones,, CONICET, Facultad de Ciencias Exactas Químicas y Naturales, Universidad Nacional de Misiones, Posadas, Misiones, CP3300, Argentina
| | - M A Sadañoski
- Laboratorio de Biotecnología Molecular, Instituto de Biotecnología Misiones,, CONICET, Facultad de Ciencias Exactas Químicas y Naturales, Universidad Nacional de Misiones, Posadas, Misiones, CP3300, Argentina
| | - J E Velázquez
- Laboratorio de Biotecnología Molecular, Instituto de Biotecnología Misiones,, CONICET, Facultad de Ciencias Exactas Químicas y Naturales, Universidad Nacional de Misiones, Posadas, Misiones, CP3300, Argentina
| | - P D Zapata
- Laboratorio de Biotecnología Molecular, Instituto de Biotecnología Misiones,, CONICET, Facultad de Ciencias Exactas Químicas y Naturales, Universidad Nacional de Misiones, Posadas, Misiones, CP3300, Argentina
| | - M I Fonseca
- Laboratorio de Biotecnología Molecular, Instituto de Biotecnología Misiones,, CONICET, Facultad de Ciencias Exactas Químicas y Naturales, Universidad Nacional de Misiones, Posadas, Misiones, CP3300, Argentina
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176
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Potentiality of Native Ascomycete Strains in Bioremediation of Highly Polychlorinated Biphenyl Contaminated Soils. Microorganisms 2021; 9:microorganisms9030612. [PMID: 33809790 PMCID: PMC8002370 DOI: 10.3390/microorganisms9030612] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/03/2021] [Accepted: 03/12/2021] [Indexed: 12/14/2022] Open
Abstract
Polychlorinated biphenyls (PCBs) are organic pollutants that are harmful to environment and toxic to humans. Numerous studies, based on basidiomycete strains, have reported unsatisfactory results in the mycoremediation of PCB-contaminated soils mainly due to the non-telluric origin of these strains. The abilities of a five-Ascomycete-strain consortium in the mycoremediation of PCB-polluted soils and its performance to restore their sound functioning were investigated using mesocosm experiments associated with chromatography gas analysis and enzymatic activity assays. With the soil H containing 850 ppm PCB from which the strains had been isolated, a significant PCB depletion of 29% after three months of treatment was obtained. This led to an important decrease of PCBs from 850 to 604 ppm. With the soil L containing 36 ppm PCB, biodegradation did not occur. In both soils, the fungal biomass quantified by the ergosterol assay, did not increase at the end of the treatment. Biodegradation evidenced in the soil H resulted in a significantly improved stoichiometry of N and P acquiring enzymatic activities. This unprecedented study demonstrates that the native Ascomycetes display remarkable properties for remediation and restoration of functioning of the soil they originated from paving the way for greater consideration of these strains in mycoremediation.
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177
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Lemmel F, Maunoury-Danger F, Leyval C, Cébron A. Altered fungal communities in contaminated soils from French industrial brownfields. JOURNAL OF HAZARDOUS MATERIALS 2021; 406:124296. [PMID: 33268205 DOI: 10.1016/j.jhazmat.2020.124296] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 10/14/2020] [Accepted: 10/14/2020] [Indexed: 05/20/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) and metals are contaminants of industrial brownfield soils. Pollutants can have harmful effects on fungi, which are major actors of soil functioning. Our objective was to highlight fungal selection following long-term contamination of soils. Fungal diversity was assessed on 30 top-soil samples from ten sites gathered in three groups with different contamination levels and physico-chemical characteristics: 1) uncontaminated controls, 2) slag heaps displaying high PAH and moderate metal contaminations, and 3) settling ponds displaying high metal and intermediate PAH contaminations. Although fungal abundance and richness were similar among the soil groups, the diversity and evenness indices were lower for the slag heap group. Fungal diversity differed among soil groups at the phylum and OTU levels, and indicator species were identified. The relative abundance of Agaricomycetes, Saccharomycetes, Leotiomycetes and Chytridiomycota was higher in the control soils than in the two groups of contaminated soils. Cryptomycota LKM11 representatives were favoured in the slag heap and settling pond groups, and their relative abundance was correlated to the zinc and lead contamination levels. Dothideomycetes - positively linked to PAH contamination - and Eurotiomycetes were specific to the slag heap group. Pucciniomycetes and especially Gymnosporangium members were favoured in the settling pond soils.
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Affiliation(s)
- Florian Lemmel
- Université de Lorraine, CNRS, LIEC, Nancy F-54000, France
| | | | - Corinne Leyval
- Université de Lorraine, CNRS, LIEC, Nancy F-54000, France
| | - Aurélie Cébron
- Université de Lorraine, CNRS, LIEC, Nancy F-54000, France.
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178
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Deng Y, Ruan Y, Taherzadeh MJ, Chen J, Qi W, Kong D, Ma B, Xu X, Lu H. Carbon availability shifts the nitrogen removal pathway and microbial community in biofilm airlift reactor. BIORESOURCE TECHNOLOGY 2021; 323:124568. [PMID: 33360950 DOI: 10.1016/j.biortech.2020.124568] [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: 11/26/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 06/12/2023]
Abstract
This study investigated the response of nitrogen removal performance and microbial community to different carbon composites in biofilm airlift reactors for wastewater treatment. Three reactors were filled with poly (butylene succinate) and bamboo powder composite at the blending ratio of 9:1, 1:1 and 1:9. Increasing the component of bamboo powder in the carrier reduced the carbon availability and had an adverse effect on nitrate removal efficiency. However, bamboo powder improved the ammonia removal rate which mainly through autotrophic nitrification. Three reactors exhibited distinct microbial compositions in both bacterial and fungal diversity. High inclusion of bamboo power decreased the relative abundance of denitrifiers Denitromonas and increased the relative abundance of nitrifiers, including Nitromonas, Nitrospina and Nitrospira. Moreover, correlation network revealed a competitive interaction between the taxa responsible for ammonia removal and nitrate removal processes. Those results indicated the feasibility of steering nitrogen removal pathway through carrier formulation in wastewater treatment.
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Affiliation(s)
- Yale Deng
- Institute of Agricultural Bio-Environmental Engineering, College of Bio-systems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Aquaculture and Fisheries Group, Department of Animal Sciences, Wageningen University, WD Wageningen 6708, The Netherlands
| | - Yunjie Ruan
- Institute of Agricultural Bio-Environmental Engineering, College of Bio-systems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; The Rural Development Academy, Zhejiang University, Hangzhou 310058, China.
| | | | - Jishuang Chen
- Institute of Bioresource Engineering, Nanjing Technology University, Nanjing 210009, China
| | - Wanhe Qi
- Institute of Agricultural Bio-Environmental Engineering, College of Bio-systems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Dedong Kong
- Agricultural Experiment Station, Zhejiang University, Hangzhou 310058, China
| | - Bin Ma
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
| | - Xiangyang Xu
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
| | - Huifeng Lu
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
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179
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Wang P, Zhang G, Wei XY, Liu R, Gu JJ, Cao FF. Bioselective Synthesis of a Porous Carbon Collector for High-Performance Sodium-Metal Anodes. J Am Chem Soc 2021; 143:3280-3283. [PMID: 33645987 DOI: 10.1021/jacs.0c12098] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Biomass-derived carbon materials prepared via pyrolysis from natural wood structures show potential for a storage application. Natural wood is composed of multiple carbon sources, including lignin, hemicellulose, and cellulose, which influence the formation and microstructure of pyrolysis carbon. However, the mechanism is not fully understood. In this work, vast lignin is selectively consumed via biodegradation with fungi from basswood. The results demonstrate that the as-prepared carbon material has a short-range ordered graphitic structure after thermal treatment. The improved graphitization degree of carbon suggests that cellulose is beneficial to graphite formation during pyrolysis. The elevated graphitization degree helps to improve the charge transfer and the thermodynamic stability of the electrode reaction. As a proof of concept, the obtained carbon current collector as a sodium-metal anode can undergo cycling at an areal capacity of 10 mAh cm-2 for over 4500 h and yield an excellent Coulombic efficiency of >99.5%.
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Affiliation(s)
- Ping Wang
- Department of Chemistry, College of Science, Huazhong Agricultural University, Wuhan 430070, P. R. China.,College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, P. R. China
| | - Geng Zhang
- Department of Chemistry, College of Science, Huazhong Agricultural University, Wuhan 430070, P. R. China
| | - Xu-Yang Wei
- Department of Chemistry, College of Science, Huazhong Agricultural University, Wuhan 430070, P. R. China
| | - Rui Liu
- Department of Chemistry, College of Science, Huazhong Agricultural University, Wuhan 430070, P. R. China
| | - Jiang-Jiang Gu
- Department of Chemistry, College of Science, Huazhong Agricultural University, Wuhan 430070, P. R. China
| | - Fei-Fei Cao
- Department of Chemistry, College of Science, Huazhong Agricultural University, Wuhan 430070, P. R. China.,College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, P. R. China
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180
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Álvarez-Barragán J, Cravo-Laureau C, Wick LY, Duran R. Fungi in PAH-contaminated marine sediments: Cultivable diversity and tolerance capacity towards PAH. MARINE POLLUTION BULLETIN 2021; 164:112082. [PMID: 33524832 DOI: 10.1016/j.marpolbul.2021.112082] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 01/12/2021] [Accepted: 01/16/2021] [Indexed: 06/12/2023]
Abstract
The cultivable fungal diversity from PAH-contaminated sediments was examined for the tolerance to polycyclic aromatic hydrocarbon (PAH). The 85 fungal strains, isolated in non-selective media, revealed a large diversity by ribosomal internal transcribed spacer (ITS) sequencing, even including possible new species. Most strains (64%) exhibited PAH-tolerance, indicating that sediments retain diverse cultivable PAH-tolerant fungi. The PAH-tolerance was linked neither to a specific taxon nor to the peroxidase genes (LiP, MnP and Lac). Examining the PAH-removal (degradation and/or sorption), Alternaria destruens F10.81 showed the best capacity with above 80% removal for phenanthrene, pyrene and fluoranthene, and around 65% for benzo[a]pyrene. A. destruens F10.81 internalized pyrene homogenously into the hyphae that contrasted with Fusarium pseudoygamai F5.76 in which PAH-vacuoles were observed but PAH removal was below 20%. Thus, our study paves the way for the exploitation of fungi in remediation strategies to mitigate the effect of PAH in coastal marine sediments.
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Affiliation(s)
- Joyce Álvarez-Barragán
- Université de Pau et des Pays de l'Adour, UPPA/E2S, IPREM UMR CNRS 5254, Bat. IBEAS, Pau, France
| | - Cristiana Cravo-Laureau
- Université de Pau et des Pays de l'Adour, UPPA/E2S, IPREM UMR CNRS 5254, Bat. IBEAS, Pau, France
| | - Lukas Y Wick
- Helmholtz Centre for Environmental Research - UFZ, Department of Environmental Microbiology, Leipzig, 04318, Germany
| | - Robert Duran
- Université de Pau et des Pays de l'Adour, UPPA/E2S, IPREM UMR CNRS 5254, Bat. IBEAS, Pau, France.
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181
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Guo Q, Wang Y, Qian J, Zhang B, Hua M, Liu C, Pan B. Enhanced production of methane in anaerobic water treatment as mediated by the immobilized fungi. WATER RESEARCH 2021; 190:116761. [PMID: 33360615 DOI: 10.1016/j.watres.2020.116761] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/10/2020] [Accepted: 12/17/2020] [Indexed: 06/12/2023]
Abstract
Anaerobic digestion of organic waste and wastewater represents an attractive sustainable bio-technology to produce methane as an alternative to fossil energy. In response to improvement of methane production via enhancing methanogenesis, current strategies of the addition of external biological/non-biological materials have to confront either the loss of materials, high cost and/or possible destruction of the microbial community. Here, we report the first case of using immobilized fungi Aspergillus sydowii 8L-9-F02 to optimize the microbial community, achieving remarkable improvement of the methane production in both batch test (1.5 times) and continuous flow operation (1.13-1.31 times). The crucial role of fungi is associated with the stimulation of enrichment of Methanosaeta and Methanobacterium for methanogenesis from 28.2 to 67.4% as well as the improved activity of enzyme F420. Moreover, fungi also increase the content of extracellular polymeric substances, facilitating the formation of bio-aggregates. This work provides a new pathway to enhance methanogenesis during anaerobic digestion of wastewater by using fungi as bio-enhancer.
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Affiliation(s)
- Qiong Guo
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, China
| | - Ya'nan Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, China
| | - Jieshu Qian
- Research Center for Environmental Nanotechnology (ReCENT), Nanjing University, Nanjing 210023, China
| | - Bingliang Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, China
| | - Ming Hua
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, China; Research Center for Environmental Nanotechnology (ReCENT), Nanjing University, Nanjing 210023, China
| | - Changhong Liu
- School of Life Sciences, Nanjing University, Nanjing 210023, China; State Key of Pharmaceutical Biotechnology, State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, Nanjing, 210023, Jiangsu, China
| | - Bingcai Pan
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, China; Research Center for Environmental Nanotechnology (ReCENT), Nanjing University, Nanjing 210023, China.
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182
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Del Olmo G, Husband S, Sánchez Briones C, Soriano A, Calero Preciado C, Macian J, Douterelo I. The microbial ecology of a Mediterranean chlorinated drinking water distribution systems in the city of Valencia (Spain). THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 754:142016. [PMID: 33254950 DOI: 10.1016/j.scitotenv.2020.142016] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/25/2020] [Accepted: 08/25/2020] [Indexed: 06/12/2023]
Abstract
Drinking water distribution systems host extensive microbiomes with diverse biofilm communities regardless of treatment, disinfection, or operational practices. In Mediterranean countries higher temperatures can accelerate reactions and microbial growth that may increase aesthetic water quality issues, particularly where material deposits can develop as a result of net zero flows within looped urban networks. This study investigated the use of flow and turbidity monitoring to hydraulically manage mobilisation of pipe wall biofilms and associated material from the Mediterranean city of Valencia (Spain). Pipe sections of different properties were subjected to controlled incremental flushing with monitoring and sample collection for physico-chemical and DNA analysis with Illumina sequencing of bacterial and fungal communities. A core microbial community was detected throughout the network with microorganisms like Pseudomonas, Aspergillus or Alternaria increasing during flushing, indicating greater abundance in underlying and more consolidated material layers. Bacterial and fungal communities were found to be highly correlated, with bacteria more diverse and dynamic during flushing whilst fungi were more dominant and less variable between sampling sites. Results highlight that water quality management can be achieved through hydraulic strategies yet understanding community dynamics, including the fungal component, will be key to maintaining safe and ultimately beneficial microbiomes in drinking water distribution systems.
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Affiliation(s)
- Gonzalo Del Olmo
- Department of Civil and Structural Engineering, University of Sheffield, S1 3JD Sheffield, United Kingdom.
| | - Stewart Husband
- Department of Civil and Structural Engineering, University of Sheffield, S1 3JD Sheffield, United Kingdom
| | | | - Adela Soriano
- Emivasa, Aguas de Valencia, Carrer dels Pedrapiquers, 4, 46014 Valencia, Spain
| | - Carolina Calero Preciado
- Department of Civil and Structural Engineering, University of Sheffield, S1 3JD Sheffield, United Kingdom
| | - Javier Macian
- Emivasa, Aguas de Valencia, Carrer dels Pedrapiquers, 4, 46014 Valencia, Spain
| | - Isabel Douterelo
- Department of Civil and Structural Engineering, University of Sheffield, S1 3JD Sheffield, United Kingdom
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183
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Germain J, Raveton M, Binet MN, Mouhamadou B. Screening and metabolic potential of fungal strains isolated from contaminated soil and sediment in the polychlorinated biphenyl degradation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111703. [PMID: 33396034 DOI: 10.1016/j.ecoenv.2020.111703] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 11/17/2020] [Accepted: 11/19/2020] [Indexed: 06/12/2023]
Abstract
Polychlorinated biphenyls (PCBs) are widespread persistent pollutants deleterious for environment and very dangerous for human kind. As the bioremediation of PCB polluted sites by model white-rot fungi is still unsatisfactory, the use of efficient native strains which have the natural capacity to develop on polluted sites may constitute a relevant alternative strategy. In this study, we isolated 12 fungal strains from PCB contaminated soil and sediment, improved the screening method to obtain the most efficient ones in biodegradation and detoxification of PCBs and characterized potential underlying enzymatic activities. Four strains Penicillium chrysogenum, P. citreosulfuratum, P. canescens and Aspergillus jensenii, showed remarkable biodegradation capacities, greater than 70%. The remaining PCB-toxicity of their culture, including that of Trametes versicolor and Acremonium sclerotigenum, which present interesting ecological and metabolic properties, was studied. Only P. canescens was able to significantly reduce the toxicity related to PCBs and their metabolites. The enzymatic activities induced by PCBs were different according to the strains, namely laccases in T. versicolor and peroxidases in Ac. sclerotigenum. Our promising results show that the use of native fungal strains can constitute an effective strategy in the depollution of PCB polluted sites.
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Affiliation(s)
- J Germain
- Laboratoire d'Ecologie Alpine, UMR 5553 CNRS/USMB Université Grenoble Alpes, 38058 Grenoble Cedex 9, France
| | - M Raveton
- Laboratoire d'Ecologie Alpine, UMR 5553 CNRS/USMB Université Grenoble Alpes, 38058 Grenoble Cedex 9, France
| | - M N Binet
- Laboratoire d'Ecologie Alpine, UMR 5553 CNRS/USMB Université Grenoble Alpes, 38058 Grenoble Cedex 9, France
| | - B Mouhamadou
- Laboratoire d'Ecologie Alpine, UMR 5553 CNRS/USMB Université Grenoble Alpes, 38058 Grenoble Cedex 9, France.
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184
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Galitskaya P, Biktasheva L, Blagodatsky S, Selivanovskaya S. Response of bacterial and fungal communities to high petroleum pollution in different soils. Sci Rep 2021; 11:164. [PMID: 33420266 PMCID: PMC7794381 DOI: 10.1038/s41598-020-80631-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 12/21/2020] [Indexed: 01/29/2023] Open
Abstract
Petroleum pollution of soils is a major environmental problem. Soil microorganisms can decompose a significant fraction of petroleum hydrocarbons in soil at low concentrations (1-5%). This characteristic can be used for soil remediation after oil pollution. Microbial community dynamics and functions are well studied in cases of moderate petroleum pollution, while cases with heavy soil pollution have received much less attention. We studied bacterial and fungal successions in three different soils with high petroleum contents (6 and 25%) in a laboratory experiment. The proportion of aliphatic and aromatic compounds decreased by 4-7% in samples with 6% pollution after 120 days of incubation but remained unchanged in samples with 25% hydrocarbons. The composition of the microbial community changed significantly in all cases. Oil pollution led to an increase in the relative abundance of bacteria such as Actinobacteria and the candidate TM7 phylum (Saccaribacteria) and to a decrease in that of Bacteroidetes. The gene abundance (number of OTUs) of oil-degrading bacteria (Rhodococcus sp., candidate class TM7-3 representative) became dominant in all soil samples, irrespective of the petroleum pollution level and soil type. The fungal communities in unpolluted soil samples differed more significantly than the bacterial communities. Nonmetric multidimensional scaling revealed that in the polluted soil, successions of fungal communities differed between soils, in contrast to bacterial communities. However, these successions showed similar trends: fungi capable of lignin and cellulose decomposition, e.g., from the genera Fusarium and Mortierella, were dominant during the incubation period.
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Affiliation(s)
- Polina Galitskaya
- grid.77268.3c0000 0004 0543 9688Institute of Environmental Sciences, Kazan Federal University, Kazan, 420008 Russia
| | - Liliya Biktasheva
- grid.77268.3c0000 0004 0543 9688Institute of Environmental Sciences, Kazan Federal University, Kazan, 420008 Russia
| | - Sergey Blagodatsky
- grid.9464.f0000 0001 2290 1502Institute of Plant Production and Agroecology in the Tropics and Subtropics, University of Hohenheim, 70599 Stuttgart, Germany ,grid.451005.5Institute of Physico-Chemical and Biological Problems of Soil Science, Pushchino, 142290 Russia
| | - Svetlana Selivanovskaya
- grid.77268.3c0000 0004 0543 9688Institute of Environmental Sciences, Kazan Federal University, Kazan, 420008 Russia
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185
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Bioprospecting and Applications of Fungi: A Game Changer in Present Scenario. Fungal Biol 2021. [DOI: 10.1007/978-3-030-68260-6_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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186
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187
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Refaey M, Abdel-Azeem AM, Abo Nahas HH, Abdel-Azeem MA, El-Saharty AA. Role of Fungi in Bioremediation of Soil Contaminated with Heavy Metals. Fungal Biol 2021. [DOI: 10.1007/978-3-030-67561-5_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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188
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White-Rot Fungi for Bioremediation of Polychlorinated Biphenyl Contaminated Soil. Fungal Biol 2021. [DOI: 10.1007/978-3-030-68260-6_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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189
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Role of Fungi in Bioremediation of Soil Contaminated with Persistent Organic Compounds. Fungal Biol 2021. [DOI: 10.1007/978-3-030-67561-5_14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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190
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Kasonga TK, Coetzee MAA, Kamika I, Ngole-Jeme VM, Benteke Momba MN. Endocrine-disruptive chemicals as contaminants of emerging concern in wastewater and surface water: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 277:111485. [PMID: 33049614 DOI: 10.1016/j.jenvman.2020.111485] [Citation(s) in RCA: 93] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 09/07/2020] [Accepted: 10/02/2020] [Indexed: 06/11/2023]
Abstract
Population growth followed by rapid development of industrialisation has caused serious environmental pollution with contaminants of emerging concern found in wastewater and surface water. As one of the most important resources for human survival, water is daily polluted by endocrine-disruptive chemicals (EDCs) including pharmaceuticals and personal care products, organic pollutants and heavy metals. Even at low concentrations in water bodies, chronic exposure to EDCs can cause adverse effects on human and environment health. The main concern with EDCs is the diseases they can generate in humans or wildlife by affecting the function of hormones in the body. Problems in the reproductive system, thyroid problems, Alzheimer's, cancer and obesity are some of the major effects of EDCs in humans. In wildlife, the reproductive system may be affected, including its levels of hatchability and vitellogenin. The efforts of the present review are on emphasising on the environmental concern on the occurrence and risk assessment of EDCs, their harmful effects in the ecosystem, human life, and wildlife, as a result of their incomplete removal from wastewater treatment plants. The review focuses on studies conducted in South Africa highlights the use of fungal bioreactors as a low-cost and eco-effective environmentally friendly wastewater treatment processes.
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Affiliation(s)
- Teddy Kabeya Kasonga
- Department of Environmental Sciences, School of Environmental Science, College of Agriculture and Environmental Sciences, Faculty of Sciences, Florida Campus, University of South Africa, Florida, Roodepoort, 1710, South Africa.
| | - Martie A A Coetzee
- Department of Environmental, Water and Earth Sciences, Faculty of Sciences, Tshwane University of Technology, P/B X 680, Pretoria, 0001, South Africa
| | - Ilunga Kamika
- Nanotechnology and Water Sustainability Research Unit; School of Science; College of Science, Engineering and Technology, Florida Campus, University of South Africa, P.O Box 392, Florida, Roodepoort, 1710, South Africa
| | - Veronica M Ngole-Jeme
- Department of Environmental Sciences, School of Environmental Science, College of Agriculture and Environmental Sciences, Faculty of Sciences, Florida Campus, University of South Africa, Florida, Roodepoort, 1710, South Africa
| | - Maggy Ndombo Benteke Momba
- Department of Environmental, Water and Earth Sciences, Faculty of Sciences, Tshwane University of Technology, P/B X 680, Pretoria, 0001, South Africa
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191
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Tiwari B, Sellamuthu B, Piché-Choquette S, Drogui P, Tyagi RD, Vaudreuil MA, Sauvé S, Buelna G, Dubé R. Acclimatization of microbial community of submerged membrane bioreactor treating hospital wastewater. BIORESOURCE TECHNOLOGY 2021; 319:124223. [PMID: 33254452 DOI: 10.1016/j.biortech.2020.124223] [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: 07/16/2020] [Revised: 09/30/2020] [Accepted: 10/02/2020] [Indexed: 06/12/2023]
Abstract
This study was performed to understand the dynamics of the microbial community of submerged membrane bioreactor during the acclimatization process to treat the hospital wastewater. In this regard, three acclimatization phases were examined using a mixture of synthetic wastewater (SWW) and real hospital wastewater (HWW) in the following proportions; In Phase 1: 75:25 v/v (SWW: HWW); Phase 2: 50:50 v/v (SWW: HWW); and Phase 3: 25:75 v/v (SWW: HWW) of wastewater. The microbial community was analyzed using Illumina high throughput sequencing to identify the bacterial and micro-eukaryotes community in SMBR. The acclimatization study clearly demonstrated that shift in microbial community composition with time. The dominance of pathogenic and degrading bacterial communities such as Mycobacterium, Pseudomonas, and Zoogloea was observed at the phase 3 of acclimatization. This study witnessed the major shift in the micro-eukaryotes community, and the proliferation of fungi Basidiomycota was observed in phase 3 of acclimatization.
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Affiliation(s)
| | - Balasubramanian Sellamuthu
- Département de radiologie, radio-oncologie et médecine nucléaire, Centre Hospitalier de l'Université de Montréal, H2X 0A9 Montréal, QC, Canada
| | | | - Patrick Drogui
- INRS-Eau, Terre et Environnement, G1K9A9 Quebec, QC, Canada
| | | | | | - Sébastien Sauvé
- Department of Chemistry, Université de Montréal, Montreal, QC, Canada
| | - Gerardo Buelna
- Investissement Québec - CRIQ, 333, rue Franquet, Quebec, QC G1P 4C7, Canada
| | - Rino Dubé
- Investissement Québec - CRIQ, 333, rue Franquet, Quebec, QC G1P 4C7, Canada
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192
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Dao ATN, Loenen SJ, Swart K, Dang HTC, Brouwer A, de Boer TE. Characterization of 2,3,7,8-tetrachlorodibenzo-p-dioxin biodegradation by extracellular lignin-modifying enzymes from ligninolytic fungus. CHEMOSPHERE 2021; 263:128280. [PMID: 33297224 DOI: 10.1016/j.chemosphere.2020.128280] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 07/28/2020] [Accepted: 09/06/2020] [Indexed: 06/12/2023]
Abstract
Ligninolytic fungi secrete extracellular lignin-modifying enzymes (LME) that degrade plant polymers for fungal nutrition but that are, because of their broad substrate specificity, also applicable for the degradation of many hazardous pollutants. Laccase is one of the most well characterized LME and is involved in the removal and degradation of recalcitrant aromatic compounds with or without the assistance of laccase-mediators. The Ligninolytic fungus Rigidoporus sp. FMD21 can degrade 2,3,7,8-tetrachlorodibenzo-p-dioxin (2,3,7,8-TCDD) with a half-life of 6.2 days. Using Rigidoporus sp. FMD21 crude extracellular enzyme extract (ExE) that mainly consisted of laccase, 77.4% of 2,3,7,8-TCDD was degraded within 36 days. The degradation rate did not depend on the 2,3,7,8-TCDD concentration in the tested range between 0.005 and 0.5 pgTEQ/μL. 2,3,7,8-TCDD was analysed by DR-CALUX® bioassay and the degradation was confirmed by GC-HRMS. In this study, we found evidence for cleavage of the diaryl ether bond in the 2,3,7,8-TCDD molecule and here we propose a new degradation mechanism in which 3,4-dichlorophenol is the main metabolite of 2,3,7,8-TCDD degradation by FMD21's ExE. Six laccase-mediators were tested. Three of them 1-hydroxybenzotriazole (HBT), syringaldehyde (Syr) and violuric acid (Vio) showed an equipotent added effect on 2,3,7,8-TCDD degradation by ExE, however only in case of Vio a level of significance was reached. The others showed no effect or negatively impacted degradation. In conclusion, we have shown that Rigidoporus sp. FMD21 produces extracellular enzymes, mainly laccases that apparently are able to degrade the highly recalcitrant and most toxic 2,3,7,8-congener of TCDD via diaryl bond cleavage into 3,4-dichlorophenol.
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Affiliation(s)
- Anh T N Dao
- MicroLife Solutions, Science Park 406, 1098XH, Amsterdam, the Netherlands; Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet Cau Giay, Hanoi, Asia; Department of Ecological Science, Vrije Universiteit, De Boelelaan 1085, 1081 HV, Amsterdam, the Netherlands
| | - Sander J Loenen
- MicroLife Solutions, Science Park 406, 1098XH, Amsterdam, the Netherlands
| | - Kees Swart
- BioDetection Systems, Science Park 406, 1098XH, Amsterdam, the Netherlands
| | - Ha T C Dang
- Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet Cau Giay, Hanoi, Asia
| | - Abraham Brouwer
- MicroLife Solutions, Science Park 406, 1098XH, Amsterdam, the Netherlands; Department of Ecological Science, Vrije Universiteit, De Boelelaan 1085, 1081 HV, Amsterdam, the Netherlands; BioDetection Systems, Science Park 406, 1098XH, Amsterdam, the Netherlands
| | - Tjalf E de Boer
- MicroLife Solutions, Science Park 406, 1098XH, Amsterdam, the Netherlands.
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193
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Fungi in Remediation of Hazardous Wastes: Current Status and Future Outlook. Fungal Biol 2021. [DOI: 10.1007/978-3-030-68260-6_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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194
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Fungal Secondary Metabolites for Bioremediation of Hazardous Heavy Metals. Fungal Biol 2021. [DOI: 10.1007/978-3-030-68260-6_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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195
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Schlosser D. Cultivation of filamentous fungi for attack on synthetic polymers via biological Fenton chemistry. Methods Enzymol 2020; 648:71-94. [PMID: 33579418 DOI: 10.1016/bs.mie.2020.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Environmental pollution with synthetic polymers (commonly named plastics) nowadays poses serious threats to the environment and human health. Unfortunately, most conventional plastics are highly recalcitrant even under conditions known to be favorable for microbial degradation. Expanding the knowledge regarding opportunities and limitations of the microbial degradability of plastics would largely contribute to the development of adequate decontamination and management strategies for plastic pollution. This chapter provides cultivation approaches to be applied for the characterization of eco-physiologically diverse asco- and basidiomycete fungi with respect to their ability to attack solid and water-soluble synthetic polymers with the help of quinone redox cycling-based Fenton-type reactions, which result in the production of highly reactive hydroxyl radicals. These reactive oxygen species are the strongest oxidants known from biological systems. However, their potential employment by fungi dwelling in diverse habitats as a biodegradation tool to attack synthetic polymers is still insufficiently explored.
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Affiliation(s)
- Dietmar Schlosser
- Department of Environmental Microbiology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany.
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196
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Perdigão Cota de Almeida S, Rozas EE, Oller do Nascimento CA, Dias M, Mendes MA. Metabolomic and secretomic approach to the resistance features of the fungus Aspergillus niger IOC 4687 to copper stress. Metallomics 2020; 13:6050762. [PMID: 33570139 DOI: 10.1093/mtomcs/mfaa010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 12/04/2020] [Accepted: 12/23/2020] [Indexed: 11/14/2022]
Abstract
Metabolomic and secretomic analyses of Aspergillus niger IOC 4687 indicated the features of resistance of this strain to copper stress. To investigate the metabolites produced under oxidative stress conditions, gas chromatography-mass spectrometry analysis was performed. The secretome principal component analysis results showed that mannitol could be the main metabolite responsible for conferring resistance to the fungus, and gluconic acid is the possible cause of copper desorption because of its chelating ability. The meta-analysis of the metabolome of A. niger IOC 4687 indicated that a low concentration of sorbitol and ribonolactone during growth may be an indicator of oxidative stress.
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Affiliation(s)
- Silas Perdigão Cota de Almeida
- Dempster MS Lab, Chemical Engineering Department of Polytechnic School of University of São Paulo, Rua do Lago 250, Bloco B 3 andar, 05508-080 São Paulo-SP, Brasil
| | - Enrique Eduardo Rozas
- Dempster MS Lab, Chemical Engineering Department of Polytechnic School of University of São Paulo, Rua do Lago 250, Bloco B 3 andar, 05508-080 São Paulo-SP, Brasil
| | - Cláudio Augusto Oller do Nascimento
- Dempster MS Lab, Chemical Engineering Department of Polytechnic School of University of São Paulo, Rua do Lago 250, Bloco B 3 andar, 05508-080 São Paulo-SP, Brasil
| | - Meriellen Dias
- Dempster MS Lab, Chemical Engineering Department of Polytechnic School of University of São Paulo, Rua do Lago 250, Bloco B 3 andar, 05508-080 São Paulo-SP, Brasil
| | - Maria Anita Mendes
- Dempster MS Lab, Chemical Engineering Department of Polytechnic School of University of São Paulo, Rua do Lago 250, Bloco B 3 andar, 05508-080 São Paulo-SP, Brasil
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197
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Dusengemungu L, Kasali G, Gwanama C, Ouma KO. Recent Advances in Biosorption of Copper and Cobalt by Filamentous Fungi. Front Microbiol 2020; 11:582016. [PMID: 33408701 PMCID: PMC7779407 DOI: 10.3389/fmicb.2020.582016] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 11/30/2020] [Indexed: 01/31/2023] Open
Abstract
Copper (Cu) and Cobalt (Co) are among the most toxic heavy metals from mining and other industrial activities. Both are known to pose serious environmental concerns, particularly to water resources, if not properly treated. In recent years several filamentous fungal strains have been isolated, identified and assessed for their heavy metal biosorption capacity for potential application in bioremediation of Cu and Co wastes. Despite the growing interest in heavy metal removal by filamentous fungi, their exploitation faces numerous challenges such as finding suitable candidates for biosorption. Based on current findings, various strains of filamentous fungi have high metal uptake capacity, particularly for Cu and Co. Several works indicate that Trichoderma, Penicillium, and Aspergillus species have higher Cu and Co biosorption capacity compared to other fungal species such as Geotrichum, Monilia, and Fusarium. It is believed that far more fungal species with even higher biosorption capability are yet to be isolated. Furthermore, the application of filamentous fungi for bioremediation is considered environmentally friendly, highly effective, reliable, and affordable, due to their low technology pre-requisites. In this review, we highlight the capacity of various identified filamentous fungal isolates for biosorption of copper and cobalt from various environments, as well as their future prospects.
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Affiliation(s)
- Leonce Dusengemungu
- School of Mathematics and Natural Sciences, The Copperbelt University, Kitwe, Zambia
| | - George Kasali
- School of Mathematics and Natural Sciences, The Copperbelt University, Kitwe, Zambia
| | - Cousins Gwanama
- School of Natural Resources, The Copperbelt University, Kitwe, Zambia
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198
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Asemoloye MD, Tosi S, Daccò C, Wang X, Xu S, Marchisio MA, Gao W, Jonathan SG, Pecoraro L. Hydrocarbon Degradation and Enzyme Activities of Aspergillus oryzae and Mucor irregularis Isolated from Nigerian Crude Oil-Polluted Sites. Microorganisms 2020; 8:E1912. [PMID: 33266344 PMCID: PMC7761101 DOI: 10.3390/microorganisms8121912] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 11/26/2020] [Accepted: 11/28/2020] [Indexed: 12/23/2022] Open
Abstract
Many free-living saprobic fungi are nature recruited organisms for the degradation of wastes, ranging from lignocellulose biomass to organic/inorganic chemicals, aided by their production of enzymes. In this study, fungal strains were isolated from contaminated crude-oil fields in Nigeria. The dominant fungi were selected from each site and identified as Aspergillus oryzae and Mucor irregularis based on morphological and molecular characterization, with site percentage incidences of 56.67% and 66.70%, respectively. Selected strains response/tolerance to complex hydrocarbon (used engine oil) was studied by growing them on Bushnell Haas (BH) mineral agar supplemented with the hydrocarbon at different concentrations, i.e., 5%, 10%, 15%, and 20%, with a control having dextrose. Hydrocarbon degradation potentials of these fungi were confirmed in BH broth culture filtrates pre-supplemented with 1% engine oil after 15 days of incubation using GC/MS. In addition, the presence of putative enzymes, laccase (Lac), manganese peroxidase (MnP), and lignin peroxidase (LiP) was confirmed in culture filtrates using appropriate substrates. The analyzed fungi grew in hydrocarbon supplemented medium with no other carbon source and exhibited 39.40% and 45.85% dose inhibition response (DIR) respectively at 20% hydrocarbon concentration. An enzyme activity test revealed that these two fungi produced more Lac than MnP and LiP. It was also observed through the GC/MS analyses that while A. oryzae acted on all hydrocarbon components in the used engine oil, M. irregularis only degraded the long-chain hydrocarbons and BTEX. This study confirms that A. oryzae and M. irregularis have the potential to be exploited in the bio-treatment and removal of hydrocarbons from polluted soils.
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Affiliation(s)
- Michael Dare Asemoloye
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China; (M.D.A.); (X.W.); (S.X.); (W.G.)
| | - Solveig Tosi
- Laboratory of Mycology, Department of Earth and Environmental Sciences, University of Pavia, Via S. Epifanio 14, 27100 Pavia, Italy; (S.T.); (C.D.)
| | - Chiara Daccò
- Laboratory of Mycology, Department of Earth and Environmental Sciences, University of Pavia, Via S. Epifanio 14, 27100 Pavia, Italy; (S.T.); (C.D.)
| | - Xiao Wang
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China; (M.D.A.); (X.W.); (S.X.); (W.G.)
| | - Shihan Xu
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China; (M.D.A.); (X.W.); (S.X.); (W.G.)
| | - Mario Andrea Marchisio
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China; (M.D.A.); (X.W.); (S.X.); (W.G.)
| | - Wenyuan Gao
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China; (M.D.A.); (X.W.); (S.X.); (W.G.)
| | - Segun Gbolagade Jonathan
- Mycology & Applied Microbiology Group, Department of Botany, University of Ibadan, Ibadan 200284, Oyo State, Nigeria;
| | - Lorenzo Pecoraro
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China; (M.D.A.); (X.W.); (S.X.); (W.G.)
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199
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Gagnon V, Rodrigue-Morin M, Tremblay J, Wasserscheid J, Champagne J, Bellenger JP, Greer CW, Roy S. Vegetation drives the structure of active microbial communities on an acidogenic mine tailings deposit. PeerJ 2020; 8:e10109. [PMID: 33150067 PMCID: PMC7585372 DOI: 10.7717/peerj.10109] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 09/16/2020] [Indexed: 12/30/2022] Open
Abstract
Plant-microbe associations are increasingly recognized as an inextricable part of plant biology and biogeochemistry. Microbes play an essential role in the survival and development of plants, allowing them to thrive in diverse environments. The composition of the rhizosphere soil microbial communities is largely influenced by edaphic conditions and plant species. In order to decipher how environmental conditions on a mine site can influence the dynamics of microbial communities, we characterized the rhizosphere soil microbial communities associated with paper birch, speckled alder, and spruce that had naturally colonized an acidogenic mine tailings deposit containing heavy metals. The study site, which had been largely undisturbed for five decades, had highly variable vegetation density; with some areas remaining almost barren, and others having a few stands or large thickets of mature trees. Using Illumina sequencing and ordination analyses (redundancy analysis and principal coordinate analysis), our study showed that soil bacterial and fungal community structures correlated mainly with vegetation density, and plant species. Tailings without any vegetation were the most different in bacterial community structure, compared to all other areas on the mine site, as well as an adjacent natural forest (comparison plot). The bacterial genera Acidiferrobacter and Leptospirillum were more abundant in tailings without vegetation than in any of the other sites, while Bradyrhizobium sp. were more abundant in areas of the tailings deposit having higher vegetation density. Frankia sp. is equally represented in each of the vegetation densities and Pseudomonas sp. present a greater relative abundance in boreal forest. Furthermore, alder rhizosphere showed a greater relative abundance of Bradyrhizobium sp. (in comparison with birch and spruce) as well as Haliangium sp. (in comparison with birch). In contrast, fungal community structures were similar across the tailings deposit regardless of vegetation density, showing a greater relative abundance of Hypocrea sp. Tailings deposit fungal communities were distinct from those found in boreal forest soils. Alder rhizosphere had greater relative abundances of Hypocrea sp. and Thelephora sp., while birch rhizosphere were more often associated with Mollisia sp. Our results indicate that, with increasing vegetation density on the mine site, the bacterial communities associated with the individual deciduous or coniferous species studied were increasingly similar to the bacterial communities found in the adjacent forest. In order to properly assess and restore disturbed sites, it is important to characterize and understand the plant-microbe associations that occur since they likely improve plant fitness in these harsh environments.
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Affiliation(s)
- Vanessa Gagnon
- Centre SÈVE, Département de biologie, Faculté des Sciences, Université de Sherbrooke, Sherbrooke, Québec, Canada.,National Research Council Canada, Energy, Mining and Environment, Montréal, Québec, Canada
| | - Michaël Rodrigue-Morin
- Centre SÈVE, Département de biologie, Faculté des Sciences, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Julien Tremblay
- National Research Council Canada, Energy, Mining and Environment, Montréal, Québec, Canada
| | - Jessica Wasserscheid
- National Research Council Canada, Energy, Mining and Environment, Montréal, Québec, Canada
| | - Julie Champagne
- National Research Council Canada, Energy, Mining and Environment, Montréal, Québec, Canada
| | - Jean-Philippe Bellenger
- Centre SÈVE, Département de chimie, Faculté des Sciences, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Charles W Greer
- National Research Council Canada, Energy, Mining and Environment, Montréal, Québec, Canada
| | - Sébastien Roy
- Centre SÈVE, Département de biologie, Faculté des Sciences, Université de Sherbrooke, Sherbrooke, Québec, Canada
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200
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Patel AB, Shaikh S, Jain KR, Desai C, Madamwar D. Polycyclic Aromatic Hydrocarbons: Sources, Toxicity, and Remediation Approaches. Front Microbiol 2020; 11:562813. [PMID: 33224110 PMCID: PMC7674206 DOI: 10.3389/fmicb.2020.562813] [Citation(s) in RCA: 343] [Impact Index Per Article: 85.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 10/06/2020] [Indexed: 12/13/2022] Open
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are widespread across the globe mainly due to long-term anthropogenic sources of pollution. The inherent properties of PAHs such as heterocyclic aromatic ring structures, hydrophobicity, and thermostability have made them recalcitrant and highly persistent in the environment. PAH pollutants have been determined to be highly toxic, mutagenic, carcinogenic, teratogenic, and immunotoxicogenic to various life forms. Therefore, this review discusses the primary sources of PAH emissions, exposure routes, and toxic effects on humans, in particular. This review briefly summarizes the physical and chemical PAH remediation approaches such as membrane filtration, soil washing, adsorption, electrokinetic, thermal, oxidation, and photocatalytic treatments. This review provides a detailed systematic compilation of the eco-friendly biological treatment solutions for remediation of PAHs such as microbial remediation approaches using bacteria, archaea, fungi, algae, and co-cultures. In situ and ex situ biological treatments such as land farming, biostimulation, bioaugmentation, phytoremediation, bioreactor, and vermiremediation approaches are discussed in detail, and a summary of the factors affecting and limiting PAH bioremediation is also discussed. An overview of emerging technologies employing multi-process combinatorial treatment approaches is given, and newer concepts on generation of value-added by-products during PAH remediation are highlighted in this review.
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Affiliation(s)
- Avani Bharatkumar Patel
- Post Graduate Department of Biosciences, UGC Centre of Advanced Study, Sardar Patel University, Anand, India
| | - Shabnam Shaikh
- P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology, Anand, India
| | - Kunal R. Jain
- Post Graduate Department of Biosciences, UGC Centre of Advanced Study, Sardar Patel University, Anand, India
| | - Chirayu Desai
- P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology, Anand, India
| | - Datta Madamwar
- Post Graduate Department of Biosciences, UGC Centre of Advanced Study, Sardar Patel University, Anand, India
- P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology, Anand, India
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