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Mohamed ZA, Mostafa Y, Alamri S, Hashem M. Accumulation of microcystin toxin in irrigation water and alfalfa (Medicago sativa) forage plant, and assessing the potential risk to animal health. CHEMOSPHERE 2024; 364:143248. [PMID: 39233291 DOI: 10.1016/j.chemosphere.2024.143248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2024] [Revised: 08/17/2024] [Accepted: 08/31/2024] [Indexed: 09/06/2024]
Abstract
Microcystin (MC) toxin produced by cyanobacteria has become a significant concern for societies worldwide. The risk of MC in drinking water has been assessed to human health. Nonetheless, its risk to animal health has not been thoroughly evaluated. This study investigated MCs in irrigation water and alfalfa plant from nearby farmlands. Both irrigation water and alfalfa shoots contained greater MC concentrations (1.8-17.4 μg L-1 and 0.053-0.128 μg g-1) during summer than winter (2.4 μg L-1 and 0.017 μg g-1). These MC concentrations showed a correlation with the predominance of cyanobacteria in the sites, triggering the potential risk of these microorganisms in irrigation waters. Accordingly, there would be a high risk (risk quotient, RQ > 1) during summer and a moderate risk (0.1
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Affiliation(s)
- Zakaria A Mohamed
- Department of Botany and Microbiology, Faculty of Science, Sohag University, Sohag, 82524, Egypt.
| | - Yasser Mostafa
- King Khalid University, College of Science, Department of Biology, Abha, P.O. Box 9004, Saudi Arabia
| | - Saad Alamri
- King Khalid University, College of Science, Department of Biology, Abha, P.O. Box 9004, Saudi Arabia
| | - Mohamed Hashem
- Assiut University, Faculty of Science, Botany and Microbiology Department, Assiut 71516, Egypt
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Redouane EM, Tazart Z, Lahrouni M, Mugani R, Elgadi S, Zine H, Zerrifi SEA, Haida M, Martins JC, Campos A, Oufdou K, Vasconcelos V, Oudra B. Health risk assessment of lake water contaminated with microcystins for fruit crop irrigation and farm animal drinking. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:80234-80244. [PMID: 37294489 PMCID: PMC10344998 DOI: 10.1007/s11356-023-27914-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 05/21/2023] [Indexed: 06/10/2023]
Abstract
The health risks linked to the consumption of microcystin-accumulating crops have been increasing worldwide in toxic cyanobloom-occurring regions. The bioaccumulation of microcystins (MCs) in agricultural produce at environmentally realistic concentrations is poorly investigated. In this field study, we assessed the health risks of MCs in raw water used for irrigating fruit crops (bioaccumulation) and watering farm animals in the Lalla Takerkoust agricultural region (Marrakesh, Morocco). Thus, MCs were extracted from water and fruit samples and quantified by enzyme-linked immunosorbent assay in order to calculate the health risk indicators. MCs posed a high health-risk level to poultry and horses, with estimated daily intakes (EDI) being 14- and 19-fold higher than the recommended limits (3.1 and 2.3 μg MC-LR L-1), respectively. Furthermore, pomegranate posed the same level of risk, with EDI being 22- and 53-fold higher than the limit dose (0.04 μg MC-LR kg-1) for adults and children, respectively. There was an urgent need for guidelines regarding water use and management in MC-polluted areas, besides the setup of nature-based tools for toxin removal from raw water used in farming practices. Moreover, MCs could contaminate the human food chain, which implies further investigations of their potential accumulation in livestock- and poultry-based food.
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Affiliation(s)
- El Mahdi Redouane
- Water, Biodiversity and Climate Change Laboratory, Faculty of Sciences Semlalia, Cadi Ayyad University, 40000, Marrakech, Morocco
- CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
| | - Zakaria Tazart
- Water, Biodiversity and Climate Change Laboratory, Faculty of Sciences Semlalia, Cadi Ayyad University, 40000, Marrakech, Morocco
| | - Majida Lahrouni
- Water, Biodiversity and Climate Change Laboratory, Faculty of Sciences Semlalia, Cadi Ayyad University, 40000, Marrakech, Morocco
| | - Richard Mugani
- Water, Biodiversity and Climate Change Laboratory, Faculty of Sciences Semlalia, Cadi Ayyad University, 40000, Marrakech, Morocco
| | - Sara Elgadi
- Laboratory of Microbial Biotechnologies, Agrosciences, and Environment (BioMAgE), Labeled Research Unit-CNRST N°4, Faculty of Sciences Semlalia, Cadi Ayyad University, 40000, Marrakech, Morocco
- Laboratory of Agro. Food Technology and Quality, Regional Center for Agronomic Research of Marrakech, National Institute of Agronomic Research (INRA), 40000, Marrakech, Morocco
| | - Hamza Zine
- Geology and Sustainable Mining Institute (GSMI), Mohammad VI Polytechnic University, 43150, Ben Guerir, Morocco
| | - Soukaina El Amrani Zerrifi
- Water, Biodiversity and Climate Change Laboratory, Faculty of Sciences Semlalia, Cadi Ayyad University, 40000, Marrakech, Morocco
- Higher Institute of Nurses Professions and Health Techniques of Guelmim, 81000, Guelmim, Morocco
| | - Mohammed Haida
- Water, Biodiversity and Climate Change Laboratory, Faculty of Sciences Semlalia, Cadi Ayyad University, 40000, Marrakech, Morocco
| | - José Carlos Martins
- CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
| | - Alexandre Campos
- CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
| | - Khalid Oufdou
- Laboratory of Microbial Biotechnologies, Agrosciences, and Environment (BioMAgE), Labeled Research Unit-CNRST N°4, Faculty of Sciences Semlalia, Cadi Ayyad University, 40000, Marrakech, Morocco
| | - Vitor Vasconcelos
- CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal.
- Department of Biology, Faculty of Sciences, University of Porto, 4169-007, Porto, Portugal.
| | - Brahim Oudra
- Water, Biodiversity and Climate Change Laboratory, Faculty of Sciences Semlalia, Cadi Ayyad University, 40000, Marrakech, Morocco
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Le TH, Nguyen TNQ, Tran TXP, Nguyen HQ, Truong NCQ, Le TL, Pham VH, Pham TL, Tran THY, Tran TT. Identifying the impact of land use land cover change on streamflow and nitrate load following modeling approach: a case study in the upstream Dong Nai River basin, Vietnam. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:68563-68576. [PMID: 37121945 DOI: 10.1007/s11356-023-26887-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 04/04/2023] [Indexed: 05/27/2023]
Abstract
Tri An Reservoir is a vital source of water for agriculture, industry, hydropower, and public usage in Southern Vietnam. Due to human activities, water eutrophication has become a serious problem in recent decades. This study investigated for the first time the impact of land use and land cover (LULC) change on streamflow and nitrate load from the upstream Dong Nai River basin, which is the largest watershed of the reservoir. The study utilized several LULC scenarios, including LULC 2000, 2010, and 2020. The SWAT model was applied to model the watershed during the period 1997-2009. Results showed that the hydrological model performed satisfactorily based on the Nash-Sutcliffe efficiency (NSE) coefficient, the root mean square error observations standard deviation ratio (RSR), and the percent bias (PBIAS). The average simulated values of monthly streamflow and nitrate load were 453.7, 450.0, 446.7 m3/s and 17,699.43, 17,869.13, 17,590.81 tonnes for the LULC 2000, 2010, and 2020 scenarios, respectively. There were no significant differences in streamflow and nitrate load at the basin level under the different LULC scenarios. However, when looking at the subbasin level, there were differences in nitrate load among the scenarios. This suggests that the impacts of LULC on nitrate load may be more pronounced at smaller scales. Overall, our finding underscores the importance of modeling techniques in predicting the impacts of LULC change on streamflow and water quality, which can ultimately aid in the sustainable management of water resources.
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Affiliation(s)
- Tu Hoang Le
- Research Center for Climate Change, Nong Lam University-Ho Chi Minh City, Ho Chi Minh City, 700000, Vietnam
| | - Thi Ngoc Quyen Nguyen
- Faculty of Agriculture and Forestry, Tay Nguyen University, 63000, Buon Ma Thuot City, Dak Lak Province, Vietnam
| | - Thi Xuan Phan Tran
- Faculty of Agriculture and Forestry, Tay Nguyen University, 63000, Buon Ma Thuot City, Dak Lak Province, Vietnam
| | | | - Nguyen Cung Que Truong
- Institute for Environment and Resources, Vietnam National University-Ho Chi Minh City (VNU-HCM), Ho Chi Minh, 700000, Vietnam
| | - Thi Luom Le
- Dong Nai Technical Resources and Environment Center, Dong Khoi Street, Tan Hiep Ward, 810000, Bien Hoa City, Dong Nai Province, Vietnam
| | - Van Huynh Pham
- Dong Nai Technical Resources and Environment Center, Dong Khoi Street, Tan Hiep Ward, 810000, Bien Hoa City, Dong Nai Province, Vietnam
| | - Thanh Luu Pham
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, 100000, Vietnam.
- Institute of Tropical Biology, Vietnam Academy of Science and Technology (VAST), 85 Tran Quoc Toan Street, District 3, Ho Chi Minh City, 700000, Vietnam.
| | - Thi Hoang Yen Tran
- Institute of Tropical Biology, Vietnam Academy of Science and Technology (VAST), 85 Tran Quoc Toan Street, District 3, Ho Chi Minh City, 700000, Vietnam
| | - Thanh Thai Tran
- Institute of Tropical Biology, Vietnam Academy of Science and Technology (VAST), 85 Tran Quoc Toan Street, District 3, Ho Chi Minh City, 700000, Vietnam
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Martínez de la Escalera G, Kruk C, Segura AM, Piccini C. Effect of hydrological modification on the potential toxicity of Microcystis aeruginosa complex in Salto Grande reservoir, Uruguay. HARMFUL ALGAE 2023; 123:102403. [PMID: 36894214 DOI: 10.1016/j.hal.2023.102403] [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: 09/26/2022] [Revised: 02/02/2023] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
It is widely known that the environmental conditions caused by the construction of reservoirs favor the proliferation of toxic cyanobacteria and the formation of blooms due to the high residence time of the water, low turbidity, temperature regimes, among others. Microcystin-producing cyanobacteria such as those from the Microcystis aeruginosa complex (MAC) are the most frequently found organisms in reservoirs worldwide, being the role of the environment on microcystin production poorly understood. Here, we addressed the community dynamics and potential toxicity of MAC cyanobacteria in a subtropical reservoir (Salto Grande) located in the low Uruguay river. Samples were taken from five different sites (upstream, inside the reservoir and downstream) during contrasting seasons (summer and winter) to analyze: (i) the MAC community structure by amplicon sequencing of the phycocyanin gene spacer, (ii) the genotype diversity of microcystin-producing MAC by high resolution melting analysis of the mcyJ gene, and (iii) the abundance and mcy transcription activity of the microcystin-producing (toxic) fraction. We found that MAC diversity decreased from summer to winter but, despite the observed changes in MAC community structure, the abundance of toxic organisms and the transcription of mcy genes were always higher inside the reservoir, regardless of the season. Two different genotypes of toxic MAC were detected inside the reservoir, one associated with low water temperature (15 °C) and one thriving at high water temperature (31 °C). These findings indicate that the environmental conditions inside the reservoir reduce community diversity while promoting the proliferation of toxic genotypes that actively transcribe mcy genes, whose relative abundance will depend on the water temperature.
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Affiliation(s)
| | - Carla Kruk
- Facultad de Ciencias, IECA, Universidad de la República, Uruguay; Departamento de Modelización Estadística de Datos e Inteligencia Artificial (MEDIA), CURE-Rocha, Universidad de la República, Uruguay
| | - Angel M Segura
- Departamento de Modelización Estadística de Datos e Inteligencia Artificial (MEDIA), CURE-Rocha, Universidad de la República, Uruguay
| | - Claudia Piccini
- Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable (IIBCE), Montvideo, Uruguay.
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Xue Q, Xie L, Cheng C, Su X, Zhao Y. Different environmental factors drive the concentrations of microcystin in particulates, dissolved water, and sediments peaked at different times in a large shallow lake. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 326:116833. [PMID: 36435125 DOI: 10.1016/j.jenvman.2022.116833] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 10/27/2022] [Accepted: 11/17/2022] [Indexed: 06/16/2023]
Abstract
Global distribution and health threats of microcystins (MCs) have received much more attention, but there are still significant knowledge gaps in the peak periods and driving factors of MC in different phases of freshwater ecosystems. Thus, we systematically analyzed the annual variation of different MC congeners (-LR, -RR, and -YR, where L, R, and Y respectively represent leucine, arginine, and tyrosine) in particulates, dissolved water, and sediments in three eutrophic bays of Lake Taihu, China. The results indicated that particulate MCs concentration was the highest, followed by dissolved and sediment MC, with the mean concentration of 7.58 μg/L, 1.48 μg/L, and 0.15 μg/g (DW), respectively. Except for particulate MC, the concentrations of the other two types of MC showed significant differences among the three bays. The dominant congeners of the three types of MCs were different, with the highest proportion of MC-LR being observed in sediment MCs and the lowest in particulate MCs. The peak period of the three types of MC was also different, with particulate MCs reaching their peak in July and October, dissolved MCs in May to July and October, and sediment MCs reaching their peak in September. Consistent with our hypothesis, the dynamics of different types of MCs were driven by different environmental factors. Particulate MCs were primarily related to biological parameters, followed by TP and dissolved carbon. By contrast, dissolved MCs strongly correlated with water temperature and dissolved oxygen. While sediment MCs were primarily driven by properties of sediments, followed by different forms of nitrogen in the water column. Our results suggested that particulate and dissolved MCs in northern Lake Taihu pose high health threats, especially in the peak period. Moreover, a more detailed and targeted risk management strategy should be designed to prevent the possible hazards posed by different types of MC.
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Affiliation(s)
- Qingju Xue
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
| | - Liqiang Xie
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
| | - Chen Cheng
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaomei Su
- Jiangsu Provincial Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environmental Sciences, Nanjing 210036, China
| | - Yanyan Zhao
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China.
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6
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Analysis of the Impact of the Presence of Phylum Cyanobacteria in the Microbiome of Patients with Breast Cancer on Their Prognosis. J Clin Med 2022; 11:jcm11247272. [PMID: 36555890 PMCID: PMC9787457 DOI: 10.3390/jcm11247272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 11/16/2022] [Accepted: 12/03/2022] [Indexed: 12/13/2022] Open
Abstract
Cyanobacterial blooms caused by Cyanobacteria adversely affect the health of the people living in their vicinity. We elucidated the effect of Cyanobacteria in patients with breast cancer. The serum microbiome of the patients with breast cancer was analyzed using NGS. Serologic tests were performed to analyze the association between the factors affecting the liver function of patients with breast cancer and the amount of Cyanobacteria. In addition, the recurrent-free survival of patients with breast cancer according to the abundance of Cyanobacteria was analyzed. The abundance of Cyanobacteria tended to be correlated with the serological results related to liver function. A high abundance of Cyanobacteria seemed to be more related to late-stage breast cancer. A high recurrent-free survival was related to a low abundance of Cyanobacteria. Even though no toxicity study was conducted, this study demonstrates the impact of phylum Cyanobacteria on the prognosis of patients with breast cancer. Thus, the abundance of Cyanobacteria in the microbiome can help predict the prognosis of patients with breast cancer.
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Pham TL, Tran THY, Tran TT, Ngo XQ, Nguyen XD. Assessment of surface water quality in a drinking water supply reservoir in Vietnam: a combination of different indicators. RENDICONTI LINCEI. SCIENZE FISICHE E NATURALI 2022. [DOI: 10.1007/s12210-022-01086-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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8
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Dos Santos Machado L, Dörr F, Dörr FA, Frascareli D, Melo DS, Gontijo ESJ, Friese K, Pinto E, Rosa AH, Pompêo MM, Moschini-Carlos V. Permanent occurrence of Raphidiopsis raciborskii and cyanotoxins in a subtropical reservoir polluted by domestic effluents (Itupararanga reservoir, São Paulo, Brazil). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:18653-18664. [PMID: 34697712 DOI: 10.1007/s11356-021-16994-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 10/07/2021] [Indexed: 06/13/2023]
Abstract
Toxic cyanobacteria blooms are a frequent problem in subtropical reservoirs and freshwater systems. The purpose of this study was to investigate the occurrence of potentially toxic cyanobacteria and the environmental conditions associated with the presence of cyanotoxins in a Brazilian subtropical reservoir. Five collections were carried out at seven sampling locations in the reservoir, during the rainy and dry seasons, between the years 2016 and 2017. There was permanent occurrence of Raphidiopsis raciborskii (Woloszynska) Aguilera, Berrendero Gómez, Kastovsky, Echenique & Salerno (Phycologia 57(2):130-146, 2018), ranging between dominant and abundant, with an average biomass of 38.8 ± 29.9 mg L-1. Also abundant were Dolichospermum solitarium, D. planctonicum, Planktothrix isothrix, and Aphanizomenon gracile. Saxitoxin (STX) was detected in all the collected samples (0.11 ± 0.05 µg L-1). Microcystin (MC) was also detected, but at lower concentrations (0.01 ± 0.0 µg L-1). Low availability of NO3- and phosphorus limitation had significant effects on the R. raciborskii biomass and the levels of STX and MC. It was observed that R. raciborskii was sensitive to thermal stratification, at the same time that STX levels were higher. This suggested that STX was produced under conditions that restricted the growth of R. raciborskii. These are important findings, because they add information about the permanent occurrence of STX and R. raciborskii in an aquatic ecosystem limited by phosphorus, vulnerable to climatic variations, and polluted by domestic effluents.
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Affiliation(s)
| | - Fabiane Dörr
- Laboratory of Toxin and Algae Natural Products, University of Sao Paulo, São Paulo, Brazil
| | - Felipe Augusto Dörr
- Laboratory of Toxin and Algae Natural Products, University of Sao Paulo, São Paulo, Brazil
| | - Daniele Frascareli
- ICT, University of São Paulo State (UNESP), Sorocaba Campus, Sorocaba, Brazil
| | - Darllene S Melo
- ICT, University of São Paulo State (UNESP), Sorocaba Campus, Sorocaba, Brazil
| | - Erik S J Gontijo
- ICT, University of São Paulo State (UNESP), Sorocaba Campus, Sorocaba, Brazil
| | - Kurt Friese
- Lake Research Department, UFZ-Helmholtz Centre for Environmental Research, Brueckstr 3a, 39114, Magdeburg, Germany
| | - Ernani Pinto
- Laboratory of Toxin and Algae Natural Products, University of Sao Paulo, São Paulo, Brazil
| | - André Henrique Rosa
- ICT, University of São Paulo State (UNESP), Sorocaba Campus, Sorocaba, Brazil
| | - Marcelo M Pompêo
- Department of Ecology, University of São Paulo, São Paulo, Brazil
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Qian Y, Okano K, Kodato M, Arai M, Yanagiya T, Li Q, Amano C, Ruike K, Itayama T, Iwami N, Utsumi M, Lei Z, Zhang Z, Sugiura N, Shimizu K. Dynamics of the prokaryotic and eukaryotic microbial community during a cyanobacterial bloom. Biosci Biotechnol Biochem 2021; 86:78-91. [PMID: 34661632 DOI: 10.1093/bbb/zbab179] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 10/06/2021] [Indexed: 11/14/2022]
Abstract
Toxic cyanobacterial blooms frequently develop in eutrophic freshwater bodies worldwide. Microcystis species produce microcystins (MCs) as a cyanotoxin. Certain bacteria that harbor the mlr gene cluster, especially mlrA, are capable of degrading MCs. However, MC-degrading bacteria may possess or lack mlr genes (mlr+ and mlr- genotypes, respectively). In this study, we investigated the genotype that predominantly contributes to biodegradation and cyanobacterial predator community structure with change in total MC concentration in an aquatic environment. The 2 genotypes coexisted but mlr+ predominated, as indicated by the negative correlation between mlrA gene copy abundance and total MC concentration. At the highest MC concentrations, predation pressure by Phyllopoda, Copepoda, and Monogononta (rotifers) was reduced; thus, MCs may be toxic to cyanobacterial predators. The results suggest that cooperation between MC-degrading bacteria and predators may reduce Microcystis abundance and MC concentration.
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Affiliation(s)
- Yilin Qian
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Ibaraki, Japan
| | - Kunihiro Okano
- Department of Biological Environment, Faculty of Bioresource Sciences, Akita Prefectural University, Nakano Shimoshinjo, Akita City, Akita, Japan
| | - Miwa Kodato
- Faculty of Life Sciences, Toyo University, Gunma, Japan
| | - Michiko Arai
- Faculty of Life Sciences, Toyo University, Gunma, Japan
| | - Takeru Yanagiya
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Ibaraki, Japan
| | - Qintong Li
- Faculty of Life Sciences, Toyo University, Gunma, Japan
| | - Chie Amano
- Faculty of Life Sciences, Toyo University, Gunma, Japan
- Department of Functional and Evolutionary Ecology, University of Vienna, Vienna, Austria
| | - Kakeru Ruike
- Faculty of Life and Environmental Sciences, University of Tsukuba, Ibaraki, Japan
| | - Tomoaki Itayama
- Graduate School of Engineering, Nagasaki University, Nagasaki, Japan
| | - Norio Iwami
- School of Science and Engineering, Meisei University, Hino, Tokyo, Japan
| | - Motoo Utsumi
- Faculty of Life and Environmental Sciences, University of Tsukuba, Ibaraki, Japan
- Sustainability Research Center, University of Tsukuba, Ibaraki, Japan
| | - Zhongfang Lei
- Faculty of Life and Environmental Sciences, University of Tsukuba, Ibaraki, Japan
| | - Zhenya Zhang
- Faculty of Life and Environmental Sciences, University of Tsukuba, Ibaraki, Japan
| | - Norio Sugiura
- Faculty of Life and Environmental Sciences, University of Tsukuba, Ibaraki, Japan
| | - Kazuya Shimizu
- Faculty of Life and Environmental Sciences, University of Tsukuba, Ibaraki, Japan
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Nguyen TAD, Nguyen LT, Enright A, Pham LT, Tran HYT, Tran TT, Nguyen VHT, Tran DN. Health risk assessment related to cyanotoxins exposure of a community living near Tri An Reservoir, Vietnam. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:56079-56091. [PMID: 34041668 DOI: 10.1007/s11356-021-14545-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 05/19/2021] [Indexed: 06/12/2023]
Abstract
Cyanotoxins released by cyanobacteria are currently a concern due to potential impacts on plants, animals, and human health. Many instances of cyanotoxin poisoning have been reported around the world, including acute, chronic, and fatal cases. In recent years, the Tri An Reservoir (TAR) in Vietnam has experienced influxes of cyanotoxins from toxic blue-green algae at levels which exceed the World Health Organization's (WHO) permitted level of 1 μg/L. Previous studies have focused on assessing cyanobacterial diversity, the presence of cyanotoxins in water, or the effect on aquatic plants and animals. Therefore, this study aims to assess the health risks associated with cyanobacteria exposure for people living near the TAR in Dong Nai Province, Vietnam, using the Monte Carlo simulation technique. In total, 120 water samples were collected at five points of the reservoir from 2017 to 2019. Seventy-five local people who have been exposed to the water from the reservoir were interviewed. Microcystin (MC) concentration was measured with a high-pressure liquid chromatography (HPLC) system and was used to assess the health risk to local people. The results showed that the MC concentration in raw water ranged from below detection limit (BDL) to 18.67 μg/L in 2017 and from BDL to 8.6 μg/L in 2019, with the predominant variant being MC-RR. The concentration of MCs in the TAR in 2017 and 2019 exceeded the WHO's permitted level of 1 μg/L by 76% and 19%, respectively. The results showed that the rate of MC exposure likely to cause cancer was approximately 1-5%. The oral exposure rate while bathing was less than 2.5%. Direct oral exposure of cyanobacteria with no carcinogenicity was relatively high (40-50%) and the most affected group was adults.
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Affiliation(s)
- Thien An Dao Nguyen
- University of Medicine and Pharmacy at Ho Chi Minh City, 217 Hong Bang Street, District 5, Ho Chi Minh City, Vietnam
| | - Linh Thi Nguyen
- University of Medicine and Pharmacy at Ho Chi Minh City, 217 Hong Bang Street, District 5, Ho Chi Minh City, Vietnam
| | - Alexis Enright
- Institute of Environmental Science, Loyola University Chicago, 1032 W. Sheridan Road, Chicago, IL, 60660, USA
| | - Luu Thanh Pham
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, 100000, Vietnam.
- Institute of Tropical Biology, Vietnam Academy of Science and Technology (VAST), 85 Tran Quoc Toan Street, District 3, Ho Chi Minh City, 700000, Vietnam.
| | - Hoang Yen Thi Tran
- Institute of Tropical Biology, Vietnam Academy of Science and Technology (VAST), 85 Tran Quoc Toan Street, District 3, Ho Chi Minh City, 700000, Vietnam
| | - Thai Thanh Tran
- Institute of Tropical Biology, Vietnam Academy of Science and Technology (VAST), 85 Tran Quoc Toan Street, District 3, Ho Chi Minh City, 700000, Vietnam
| | - Van Ha Thi Nguyen
- Ho Chi Minh City University of Natural Resources and Environment, 236B Le Van Sy Street, Tan Binh District, Ho Chi Minh City, 700000, Vietnam
| | - Dang Ngoc Tran
- University of Medicine and Pharmacy at Ho Chi Minh City, 217 Hong Bang Street, District 5, Ho Chi Minh City, Vietnam.
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Naknaen A, Ratsameepakai W, Suttinun O, Sukpondma Y, Khan E, Pomwised R. Microcystis Sp. Co-Producing Microcystin and Saxitoxin from Songkhla Lake Basin, Thailand. Toxins (Basel) 2021; 13:toxins13090631. [PMID: 34564635 PMCID: PMC8472854 DOI: 10.3390/toxins13090631] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/01/2021] [Accepted: 09/03/2021] [Indexed: 11/16/2022] Open
Abstract
The Songkhla Lake Basin (SLB) located in Southern Thailand, has been increasingly polluted by urban and industrial wastewater, while the lake water has been intensively used. Here, we aimed to investigate cyanobacteria and cyanotoxins in the SLB. Ten cyanobacteria isolates were identified as Microcystis genus based on16S rDNA analysis. All isolates harbored microcystin genes, while five of them carried saxitoxin genes. On day 15 of culturing, the specific growth rate and Chl-a content were 0.2-0.3 per day and 4 µg/mL. The total extracellular polymeric substances (EPS) content was 0.37-0.49 µg/mL. The concentration of soluble EPS (sEPS) was 2 times higher than that of bound EPS (bEPS). The protein proportion in both sEPS and bEPS was higher than the carbohydrate proportion. The average of intracellular microcystins (IMCs) was 0.47 pg/cell on day 15 of culturing, while extracellular microcystins (EMCs) were undetectable. The IMCs were dramatically produced at the exponential phase, followed by EMCs release at the late exponential phase. On day 30, the total microcystins (MCs) production reached 2.67 pg/cell. Based on liquid chromatograph-quadrupole time-of-flight mass spectrometry, three new MCs variants were proposed. This study is the first report of both decarbamoylsaxitoxin (dcSTX) and new MCs congeners synthesized by Microcystis.
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Affiliation(s)
- Ampapan Naknaen
- Environmental Assessment and Technology for Hazardous Waste Management Research Center, Faculty of Environmental Management, Prince of Songkla University, Hat Yai 90110, Thailand; (A.N.); (O.S.)
| | - Waraporn Ratsameepakai
- Office of Scientific Instrument and Testing, Prince of Songkla University, Hat Yai 90110, Thailand;
| | - Oramas Suttinun
- Environmental Assessment and Technology for Hazardous Waste Management Research Center, Faculty of Environmental Management, Prince of Songkla University, Hat Yai 90110, Thailand; (A.N.); (O.S.)
- Center of Excellence on Hazardous Substance Management (HSM), Bangkok 10330, Thailand
| | - Yaowapa Sukpondma
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai 90110, Thailand;
| | - Eakalak Khan
- Department of Civil and Environmental Engineering and Construction, University of Nevada, Las Vegas, NV 89154-4015, USA;
| | - Rattanaruji Pomwised
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai 90110, Thailand
- Correspondence: ; Tel.: +66-74-288-325
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Redouane EM, Lahrouni M, Martins JC, El Amrani Zerrifi S, Benidire L, Douma M, Aziz F, Oufdou K, Mandi L, Campos A, Vasconcelos V, Oudra B. Protective Role of Native Rhizospheric Soil Microbiota Against the Exposure to Microcystins Introduced into Soil-Plant System via Contaminated Irrigation Water and Health Risk Assessment. Toxins (Basel) 2021; 13:toxins13020118. [PMID: 33562776 PMCID: PMC7914557 DOI: 10.3390/toxins13020118] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 01/30/2021] [Accepted: 02/02/2021] [Indexed: 01/21/2023] Open
Abstract
Microcystins (MCs) produced in eutrophic waters may decrease crop yield, enter food chains and threaten human and animal health. The main objective of this research was to highlight the role of rhizospheric soil microbiota to protect faba bean plants from MCs toxicity after chronic exposure. Faba bean seedlings were grown in pots containing agricultural soil, during 1 month under natural environmental conditions of Marrakech city in Morocco (March–April 2018) and exposed to cyanobacterial extracts containing up to 2.5 mg·L−1 of total MCs. Three independent exposure experiments were performed (a) agricultural soil was maintained intact “exposure experiment 1”; (b) agricultural soil was sterilized “exposure experiment 2”; (c) agricultural soil was sterilized and inoculated with the rhizobia strain Rhizobium leguminosarum RhOF34 “exposure experiment 3”. Overall, data showed evidence of an increased sensitivity of faba bean plants, grown in sterilized soil, to MCs in comparison to those grown in intact and inoculated soils. The study revealed the growth inhibition of plant shoots in both exposure experiments 2 and 3 when treated with 2.5 mg·L−1 of MCs. The results also showed that the estimated daily intake (EDI) of MCs, in sterilized soil, exceeded 2.18 and 1.16 times the reference concentrations (0.04 and 0.45 µg of microcysin-leucine arginine (MC-LR). Kg−1 DW) established for humans and cattle respectively, which raises concerns about human food chain contamination.
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Affiliation(s)
- El Mahdi Redouane
- Water, Biodiversity and Climate change Laboratory, Department of Biology, Faculty of Sciences Semlalia, Cadi Ayyad University, Av. Prince My Abdellah, P.O. Box 2390, Marrakech 40000, Morocco; (E.M.R.); (S.E.A.Z.); (F.A.); (L.M.); (B.O.)
| | - Majida Lahrouni
- Bioactives, Health and Environement Laboratory, Biology, Environement & Health Research Unit, Department of Biology, Faculty of Sciences and technology, Moulay Ismail University, B.P. 509 Boutalamine, Errachidia 52000, Morocco;
| | - José Carlos Martins
- CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de MatosMatosinhos, 4450-208 Matosinhos, Portugal; (J.C.M.); (A.C.)
| | - Soukaina El Amrani Zerrifi
- Water, Biodiversity and Climate change Laboratory, Department of Biology, Faculty of Sciences Semlalia, Cadi Ayyad University, Av. Prince My Abdellah, P.O. Box 2390, Marrakech 40000, Morocco; (E.M.R.); (S.E.A.Z.); (F.A.); (L.M.); (B.O.)
| | - Loubna Benidire
- Plant Biotechnology Laboratory BiotecV, Laayoune Higher School of Technology, Ibn Zohr University, 25 Mars P.B. 3007, Laayoune 70000, Morocco;
| | - Mountassir Douma
- Laboratory of Chemistry, Modeling and Evironmental Sciences, Polydisciplinary Faculty of Khouribga (F.P.K), Sultan Moulay Slimane University, P.B. 145, Khouribga 25000, Morocco;
| | - Faissal Aziz
- Water, Biodiversity and Climate change Laboratory, Department of Biology, Faculty of Sciences Semlalia, Cadi Ayyad University, Av. Prince My Abdellah, P.O. Box 2390, Marrakech 40000, Morocco; (E.M.R.); (S.E.A.Z.); (F.A.); (L.M.); (B.O.)
- National Center for Studies and Research on Water and Energy (CNEREE), Cadi Ayyad University, B.P. 511, Av. Abdelkrim Elkhattabi, Marrakech 40000, Morocco
| | - Khalid Oufdou
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment (BioMAgE) Department of Biology, Faculty of Sciences Semlalia, Cadi Ayyad University, Av. Prince My Abdellah, P.O. Box 2390, Marrakech 40000, Morocco;
| | - Laila Mandi
- Water, Biodiversity and Climate change Laboratory, Department of Biology, Faculty of Sciences Semlalia, Cadi Ayyad University, Av. Prince My Abdellah, P.O. Box 2390, Marrakech 40000, Morocco; (E.M.R.); (S.E.A.Z.); (F.A.); (L.M.); (B.O.)
- National Center for Studies and Research on Water and Energy (CNEREE), Cadi Ayyad University, B.P. 511, Av. Abdelkrim Elkhattabi, Marrakech 40000, Morocco
| | - Alexandre Campos
- CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de MatosMatosinhos, 4450-208 Matosinhos, Portugal; (J.C.M.); (A.C.)
| | - Vitor Vasconcelos
- CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de MatosMatosinhos, 4450-208 Matosinhos, Portugal; (J.C.M.); (A.C.)
- Departament of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal
- Correspondence: ; Tel.: +351-223401817
| | - Brahim Oudra
- Water, Biodiversity and Climate change Laboratory, Department of Biology, Faculty of Sciences Semlalia, Cadi Ayyad University, Av. Prince My Abdellah, P.O. Box 2390, Marrakech 40000, Morocco; (E.M.R.); (S.E.A.Z.); (F.A.); (L.M.); (B.O.)
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Ha NT, Nguyen HQ, Truong NCQ, Le TL, Thai VN, Pham TL. Estimation of nitrogen and phosphorus concentrations from water quality surrogates using machine learning in the Tri An Reservoir, Vietnam. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:789. [PMID: 33241485 DOI: 10.1007/s10661-020-08731-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 11/03/2020] [Indexed: 06/11/2023]
Abstract
Surface water eutrophication due to excessive nutrients has become a major environmental problem around the world in the past few decades. Among these nutrients, nitrogen and phosphorus are two of the most important harmful cyanobacterial bloom (HCB) drivers. A reliable prediction of these parameters, therefore, is necessary for the management of rivers, lakes, and reservoirs. The aim of this study is to test the suitability of the powerful machine learning (ML) algorithm, random forest (RF), to provide information on water quality parameters for the Tri An Reservoir (TAR). Three species of nitrogen and phosphorus, including nitrite (N-NO2-), nitrate (N-NO3-), and phosphate (P-PO43-), were empirically estimated using the field observation dataset (2009-2014) of six surrogates of total suspended solids (TSS), total dissolved solids (TDS), turbidity, electrical conductivity (EC), chemical oxygen demand (COD), and biochemical oxygen demand (BOD5). Field data measurement showed that water quality in the TAR was eutrophic with an up-trend of N-NO3- and P-PO43- during the study period. The RF regression model was reliable for N-NO2-, N-NO3-, and P-PO43- prediction with a high R2 of 0.812-0.844 for the training phase (2009-2012) and 0.888-0.903 for the validation phase (2013-2014). The results of land use and land cover change (LUCC) revealed that deforestation and shifting agriculture in the upper region of the basin were the major factors increasing nutrient loading in the TAR. Among the meteorological parameters, rainfall pattern was found to be one of the most influential factors in eutrophication, followed by average sunshine hour. Our results are expected to provide an advanced assessment tool for predicting nutrient loading and for giving an early warning of HCB in the TAR.
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Affiliation(s)
- Nam-Thang Ha
- Environmental Research Institute, School of Science, The University of Waikato, Hamilton, 3216, New Zealand
- Faculty of Fisheries, The University of Agriculture and Forestry, Hue University, Hue, 530000, Vietnam
| | - Hao Quang Nguyen
- Graduate School of Systems and Information Engineering, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572, Japan
| | | | - Thi Luom Le
- Dong Nai Technical Resources and Environment Center, Dong Khoi Street, Tan Hiep Ward, Bien Hoa City, Dong Nai Province, 810000, Vietnam
| | - Van Nam Thai
- Ho Chi Minh City University of Technology (HUTECH), 475A Dien Bien Phu Street, Binh Thanh District, Ho Chi Minh City, 700000, Vietnam
| | - Thanh Luu Pham
- Institute of Tropical Biology, Vietnam Academy of Science and Technology (VAST), 85 Tran Quoc Toan Street, District 3, Ho Chi Minh City, 700000, Vietnam.
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay district, Hanoi, 100000, Vietnam.
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