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da Silva Santos AC, do Nascimento Barbosa R, Cavalcanti AD, de Souza-Motta CM, de Oliveira NT, Tiago PV, Moreira KA. Molecular identification of Brazilian Fusarium strains: sources of proteases with milk-clotting properties. Braz J Microbiol 2023; 54:1665-1674. [PMID: 37266822 PMCID: PMC10485214 DOI: 10.1007/s42770-023-01016-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 05/24/2023] [Indexed: 06/03/2023] Open
Abstract
Fusarium is a genus of ubiquitous fungi that comprises mycotoxigenic animal and plant pathogens. These fungi have the ability to exploit a wide range of substrates and hosts, indicating their great potential for enzyme production; however, this aspect is understudied. Therefore, the present study aimed for revaluating the identity of twenty-three Fusarium strains maintained in the University Recife Mycology (URM) culture collection, Brazil, and to evaluate their potential for proteases production and the milk-clotting activity of these proteases. According to phylogenetic analysis of translation elongation factor 1-alpha (TEF1) gene partial sequences, these strains belonged to 12 species representing four species complexes: Fusarium concolor, F. fujikuroi, F. incarnatum-equiseti, and F. oxysporum. Four of these species are putatively novel to science. Notably, novel associations of Fusarium spp. with certain hosts/substrates were documented. The proteolytic activity ranged from 1.67 U ml-1 to 22.03 U ml-1 among the evaluated fungal isolates, with specific proteolytic activity reaching 205.86 U mg-1. The values for coagulant activity and specific activity were up to 157.14 U ml-1 and 1,424.11 U mg-1, respectively. These results indicate the potential of URM Fusarium strains as a source for the production of enzymes of industrial interest. Additionally, they reinforce the importance of applying DNA-based methods for reviewing the identification of fungal strains preserved in biodiversity repositories.
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Affiliation(s)
- Ana Carla da Silva Santos
- Departamento de Micologia, Universidade Federal de Pernambuco, Av. Professor Moraes Rego 1235, Cidade Universitária, Recife, Pernambuco, 50670-901, Brazil.
- Universidade Federal Do Agreste de Pernambuco, Av. Bom Pastor, Boa Vista, Garanhuns, Pernambuco, 55292-270, Brazil.
| | - Renan do Nascimento Barbosa
- Departamento de Micologia, Universidade Federal de Pernambuco, Av. Professor Moraes Rego 1235, Cidade Universitária, Recife, Pernambuco, 50670-901, Brazil
| | - Anthony Dias Cavalcanti
- Departamento de Micologia, Universidade Federal de Pernambuco, Av. Professor Moraes Rego 1235, Cidade Universitária, Recife, Pernambuco, 50670-901, Brazil
| | - Cristina Maria de Souza-Motta
- Departamento de Micologia, Universidade Federal de Pernambuco, Av. Professor Moraes Rego 1235, Cidade Universitária, Recife, Pernambuco, 50670-901, Brazil
| | - Neiva Tinti de Oliveira
- Departamento de Micologia, Universidade Federal de Pernambuco, Av. Professor Moraes Rego 1235, Cidade Universitária, Recife, Pernambuco, 50670-901, Brazil
| | - Patricia Vieira Tiago
- Departamento de Micologia, Universidade Federal de Pernambuco, Av. Professor Moraes Rego 1235, Cidade Universitária, Recife, Pernambuco, 50670-901, Brazil
| | - Keila Aparecida Moreira
- Universidade Federal Do Agreste de Pernambuco, Av. Bom Pastor, Boa Vista, Garanhuns, Pernambuco, 55292-270, Brazil
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Kasonga TK, Coetzee MAA, Kamika I, Momba MNB. Assessing the Fungal Simultaneous Removal Efficiency of Carbamazepine, Diclofenac and Ibuprofen in Aquatic Environment. Front Microbiol 2021; 12:755972. [PMID: 34966363 PMCID: PMC8710540 DOI: 10.3389/fmicb.2021.755972] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 11/15/2021] [Indexed: 11/13/2022] Open
Abstract
Unused pharmaceutical compounds (PhCs) discharged into the aquatic environment have been regarded as emerging pollutants due to potential harmful effects on humans and the environment. Microbial bioremediation is considered as a viable option for their removal from wastewater. The aim of this study was to assess the simultaneous removal of carbamazepine (CBZ), diclofenac (DCF) and ibuprofen (IBP) by previously isolated fungi (Aspergillus niger, Mucor circinelloides, Trichoderma longibrachiatum, Trametes polyzona, and Rhizopus microsporus). The tolerance to PhCs was conducted by tracking the fungal mycelium mat diameters in solid media and its dry biomass in liquid media, at the drug concentration range of 0.1 to 15 mg/L. The fungal enzymatic activities were determined for lignin peroxidase (LiP), manganese peroxidase (MnP) and laccase (Lac), respectively. The PhC removal efficiency of the fungi was assessed in aerated batch flasks and the drug concentrations and intermediate compounds formation were determined by using SPE-UPLC/MS. A tolerance over 70% was recorded for all the fungi at drug concentration of 0.1 mg/L. Manganese peroxidase was produced by all the fungi with very low amount of LiP, while all the enzymes were produced by T. polyzona. The pH of 4.3, temperature 37 ± 1.5°C and incubation time of 6 days were the optimum parameters for the fungal enzymatic activities. The best removal of CBZ (87%) was achieved by R. microsporus after 10 days. Between 78 and 100% removal of DCF was observed by all the fungi after 24 h, while 98% of IBP was removed after 2 days by M. circinelloides. Only a few intermediate compounds were identified after 3 days and disappeared after 10 days of incubation. This study demonstrated that apart from the basidiomycetes, the ascomycetes and zygomycetes are also producers of ligninolytic enzymes and have the ability to biodegrade emerging pollutants such as PhCs.
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Affiliation(s)
- Teddy K. Kasonga
- Department of Environmental, Water and Earth Sciences, Faculty of Sciences, Tshwane University of Technology, Pretoria, South Africa
| | - Martie A. A. Coetzee
- Department of Environmental, Water and Earth Sciences, Faculty of Sciences, Tshwane University of Technology, Pretoria, South Africa
| | - Ilunga Kamika
- Institute for Nanotechnology and Water Sustainability, School of Science, College of Science, Engineering and Technology, University of South Africa, Roodepoort, South Africa
| | - Maggy N. B. Momba
- Department of Environmental, Water and Earth Sciences, Faculty of Sciences, Tshwane University of Technology, Pretoria, South Africa
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Barros Correia ACR, Barbosa RN, Frisvad JC, Houbraken J, Souza-Motta CM. The polyphasic re-identification of a Brazilian Aspergillus section Terrei collection led to the discovery of two new species. Mycol Prog 2020. [DOI: 10.1007/s11557-020-01605-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Kasonga TK, Coetzee MAA, Van Zijl C, Momba MNB. Removal of pharmaceutical' estrogenic activity of sequencing batch reactor effluents assessed in the T47D-KBluc reporter gene assay. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 240:209-218. [PMID: 30939401 DOI: 10.1016/j.jenvman.2019.03.113] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 03/24/2019] [Accepted: 03/25/2019] [Indexed: 06/09/2023]
Abstract
Various water treatment processes may be ineffective to remove pharmaceutical compounds (PhCs) and their by-products, leading to endocrine-disruptive activity that might be detrimental to wildlife and human health. This study investigated the degradation of carbamazepine (CBZ), diclofenac (DCF), ibuprofen (IBP), and their intermediates, as well as estrogenic activity that is not effectively removed by conventional methods. A consortium of isolated South African indigenous fungi A. niger, M. circinelloides, T. polyzona, T. longibrachiatum and R. microsporus, was used in a sequencing batch reactor (SBR) to remove PhCs, their intermediates and strongly reduce their estrogenic activity. The fungal ligninolytic enzymatic activity was determined for laccase (Lac), manganese peroxidase (MnP) and lignin peroxidase (LiP) using a spectrophotometric method. The biodegradation of PhCs and their intermediates was monitored by SPE-UPLC/MS. The in vitro estrogenic activity was assessed in the T47D-KBluc reporter gene assay. Lac, MnP and LiP production appeared to be biomass growth dependent. During a lag phase of growth, a constant biomass of about 122.04 mg/100 mL was recorded with average enzymatic activity around 63.62 U/L for Lac, 151.91 U/L for MnP and 42.12 U/L for LiP. The exponential growth phase from day 7 to day 17, was characterised by a biomass increase of 124.46 units, and an increase in enzymatic activity of 9.91 units for Lac, 99.03 units for MnP and 44.24 units for LiP. These enzymes played an important synergistic role in PhCs degradation in the cytochrome P450 system. A decrease of 13.89%, 29.7% and 16.15% in PhC concentrations was observed for CBZ, DCF and IBP, respectively, and their intermediates were identified within 4 h of incubation. The removal efficiency achieved after 24 h in the SBR was about 89.77%, 95.8% and 91.41% for CBZ, DCF and IBP, respectively. The estradiol equivalent (EEq) values of 1.71 ± 0.30 ng/L and 2.69 ± 0.17 ng/L were recorded at the start-up time and after 4 h, respectively. The presence of intermediates was found to induce estrogenic activity. The EEq values after 24 h incubation was found to be below the LoQ and below the LoD of the assay. None of the samples exhibited any anti-estrogenic activity. The fungal consortium inoculum was found to induce toxicity at a 0.4× concentration, as observed under a microscope. This study revealed that the use of the fungal consortium can remove the estrogenic activity of pharmaceutical metabolites, which appeared to be the most significant contributors to the endocrine-disrupting activity of the wastewater treatment plant effluents.
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Affiliation(s)
- Teddy Kabeya Kasonga
- Department of Environmental, Water and Earth Sciences, Faculty of Sciences, Tshwane University of Technology, P/B X 680, Pretoria, 0001, 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.
| | - Catherina Van Zijl
- Department of Urology, University of Pretoria, Private Bag X323, Arcadia, 0007, Pretoria, 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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Islam M, Wai A, Hausner G, Yuan Q. Effect of lignocellulosic enzymes on the treatment of mature landfill leachate. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 233:400-409. [PMID: 30590269 DOI: 10.1016/j.jenvman.2018.12.045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 08/08/2018] [Accepted: 12/15/2018] [Indexed: 06/09/2023]
Abstract
The inherent necessity to remediate refractory contaminants from the toxic problematic wastewater like mature landfill leachate (MLL) has become a global challenge. This study investigated the effect of a potentially sustainable technological approach, i.e. lignocellulosic enzymatic activities (lignin-peroxidase, manganese-peroxidase and laccase), produced from six selected fungi on the removal efficiency of chemical oxygen demand (COD) and soluble COD (sCOD) from the MLL. The COD/sCOD removal percentage was significantly increased with higher enzymatic activities. Tyromyces chioneus was revealed to be the first ever fungi that produced significant amount of all three enzymes. Penicillium sp. and Tyromyces chioneus were the most effective strains, which removed 66% and 59% of COD, and 64% and 57% of sCOD, respectively. The maximum lignin-peroxidase, manganese-peroxidase and laccase enzymatic activities were 19.3 and 26.9 U/L by Tyromyces chioneus, and 249.8 U/L by Penicillium sp, respectively. It was concluded that lignocellulosic biomass could be a sustainable and advanced biological treatment option to remove refractory components from MLL.
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Affiliation(s)
- Mofizul Islam
- Department of Civil Engineering, University of Manitoba, Winnipeg, MB R3T 5V6, Canada
| | - Alvan Wai
- Department of Microbiology, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Georg Hausner
- Department of Microbiology, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Qiuyan Yuan
- Department of Civil Engineering, University of Manitoba, Winnipeg, MB R3T 5V6, Canada.
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