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Yuan KK, Yu YY, Mo YH, Liu YJ, Zhang WX, Lv JJ, Shi W, Liu GX, Li HY, Yang WD. Exposure to microplastics renders immunity of the thick-shell mussel more vulnerable to diarrhetic shellfish toxin-producing harmful algae. Sci Total Environ 2024; 926:172125. [PMID: 38565353 DOI: 10.1016/j.scitotenv.2024.172125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 03/29/2024] [Accepted: 03/29/2024] [Indexed: 04/04/2024]
Abstract
Despite both microplastics (MPs) and harmful algae blooms (HABs) may pose a severe threat to the immunity of marine bivalves, the toxification mechanism underlying is far from being fully understood. In addition, owing to the prevalence and sudden occurrence characteristics of MPs and HABs, respectively, bivalves with MP-exposure experience may face acute challenge of harmful algae under realistic scenarios. However, little is known about the impacts and underlying mechanisms of MP-exposure experience on the susceptibility of immunity to HABs in bivalve mollusks. Taking polystyrene MPs and diarrhetic shellfish toxin-producing Prorocentrum lima as representatives, the impacts of MP-exposure on immunity vulnerability to HABs were investigated in the thick-shell mussel, Mytilus coruscus. Our results revealed evident immunotoxicity of MPs and P. lima to the mussel, as evidenced by significantly impaired total count, phagocytic activity, and cell viability of haemocytes, which may result from the induction of oxidative stress, aggravation of haemocyte apoptosis, and shortage in cellular energy supply. Moreover, marked disruptions of immunity, antioxidant system, apoptosis regulation, and metabolism upon MPs and P. lima exposure were illustrated by gene expression and comparative metabolomic analyses. Furthermore, the mussels that experienced MP-exposure were shown to be more vulnerable to P. lima, indicated by greater degree of deleterious effects on abovementioned parameters detected. In general, our findings emphasize the threat of MPs and HABs to bivalve species, which deserves close attention and more investigation.
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Affiliation(s)
- Kuan-Kuan Yuan
- Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Ying-Ying Yu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yan-Hang Mo
- Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Yu-Jie Liu
- Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Wei-Xia Zhang
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jin-Jin Lv
- Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Wei Shi
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Guang-Xu Liu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Hong-Ye Li
- Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Wei-Dong Yang
- Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, College of Life Science and Technology, Jinan University, Guangzhou 510632, China.
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Hu C, Chen Q, Wu S, Wang J, Zhang S, Chen L. Coupling harmful algae derived nitrogen and sulfur co-doped carbon nanosheets with CeO 2 to enhance the photocatalytic degradation of isothiazolinone biocide. J Environ Manage 2024; 356:120621. [PMID: 38520860 DOI: 10.1016/j.jenvman.2024.120621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 02/21/2024] [Accepted: 03/10/2024] [Indexed: 03/25/2024]
Abstract
Removing the algae from water bodies is an effective treatment toward the worldwide frequently occurred harmful algae blooms (HAB), but processing the salvaged algae waste without secondary pollution places another burden on the economy and environment. Herein, a green hydrothermal process without any chemical addition was developed to resource the HAB algae (Microcystis sp.) into autogenous nitrogen and sulfur co-doped carbon nanosheet materials C-CNS and W-CNS, whose alga precursors were collected from pure culture and a wild bloom pond, respectively. After coupling with CeO2, the obtained optimal C-CNS/CeO2 and W-CNS/CeO2 composites photocatalytically degraded 95.4% and 88.2% of the marine pollutant 4,5-Dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT) in 90 min, significantly higher than that of pure CeO2 (63.15%). DCOIT degradation on CNS/CeO2 was further conducted under different conditions, including pH value, coexisting cations and anions, and artificial seawater. Although different influences were observed, the removal efficiencies were all above 76%. Along with the ascertained good stability and reusability in five consecutive runs, the great potential of CNS/CeO2 for practical application was validated. UV-vis DRS showed the increased light absorption of CNS/CeO2 in comparison to pure CeO2. PL spectra and photoelectrochemical measurements suggested the lowered charge transfer resistance and thereby inhibited charge recombination of CNS/CeO2. Meanwhile, trapping experiments and electron paramagnetic resonance (EPR) detection verified the primary roles of hydroxyl radical (OH) and superoxide radical (O2-) in DCOIT degradation, as well as their notably augmented generation by CNS. Consequently, a mechanism of CNS enhanced photocatalytic degradation of DCOIT was proposed. The intermediates involved in the reaction were identified by LC-QTOF-MS, giving rise to a deduced degradation pathway for DCOIT. This study offers a new approach for resourceful utilization of the notorious HAB algae waste. Besides that, photocatalytic degradation has been explored as an effective measure to remove DCOIT from the ocean.
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Affiliation(s)
- Chenyan Hu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430072, China
| | - Qingdi Chen
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430072, China
| | - Suxin Wu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430072, China
| | - Jiali Wang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430072, China
| | - Shizhen Zhang
- Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Lianguo Chen
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
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Mao Y, Fan H, Yao H, Wang C. Recent progress and prospect of graphitic carbon nitride-based photocatalytic materials for inactivation of Microcystis aeruginosa. Sci Total Environ 2024; 917:170357. [PMID: 38286286 DOI: 10.1016/j.scitotenv.2024.170357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 01/17/2024] [Accepted: 01/20/2024] [Indexed: 01/31/2024]
Abstract
The proliferation of harmful algal blooms is a global concern due to the risk they pose to the environment and human health. Algal toxins which are hazardous compounds produced by dangerous algae, can potentially kill humans. Researchers have been drawn to photocatalysis because of its clean and energy-saving properties. Graphite carbon nitride (g-C3N4) photocatalysts have been extensively studied for their ability to eliminate algae. These photocatalysts have attracted notice because of their cost-effectiveness, appropriate electronic structure, and exceptional chemical stability. This paper reviews the progress of photocatalytic inactivation of harmful algae by g-C3N4-based materials in recent years. A brief overview is given of a number of the modification techniques on g-C3N4-based photocatalytic materials, as well as the process of inactivating algal cells and destroying their toxins. Additionally, it provides a theoretical framework for future research on the eradication of algae using g-C3N4-based photocatalytic materials.
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Affiliation(s)
- Yayu Mao
- The College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, PR China.
| | - Hongying Fan
- Testing Centre, Yangzhou University, Yangzhou 225002, PR China.
| | - Hang Yao
- The College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, PR China.
| | - Chengyin Wang
- The College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, PR China.
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Yue L, Tao M, Xu L, Wang C, Xu Y, Liu Y, Cao X, White JC, Wang Z. Size-dependent photocatalytic inactivation of Microcystis aeruginosa and degradation of microcystin by a copper metal organic framework. J Hazard Mater 2024; 462:132799. [PMID: 37865071 DOI: 10.1016/j.jhazmat.2023.132799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 10/03/2023] [Accepted: 10/15/2023] [Indexed: 10/23/2023]
Abstract
Water eutrophication has led to increasingly serious algal blooms (HABs) that pose significant threats to aquatic environmental and human health. Differently sized copper metal organic frameworks (Cu-MOFs), including Cu-MOF-1 (30 nm), Cu-MOF-2, (40 nm), Cu-MOF-3 (50 nm), and Cu-MOF-4 (1 µm×100 nm), were synthesized. Their performance in inactivating Microcystis aeruginosa and degrading microcystin was assessed at the concentration of 0-60 mg/L under visible light irradiation for 6 h. The photocatalytic antialgal activity of Cu-MOF-4 was 10.5%, 14.2%, and 31.2% higher than that of Cu-MOF-3, Cu-MOF-2, and Cu-MOF-1; the efficacy in photocatalytic degradation of microcystin induced by Cu-MOFs also exhibited significant size-dependent efficiency, where Cu-MOF-4 was 2.6-, 1.8-, and 2.0-fold of Cu-MOF-3, Cu-MOF-2, and Cu-MOF-1, respectively. Cu-MOF-4 had greater performance than other Cu-MOFs could attributed to: 1) Cu-MOF-4 is easier to interact with algal cells due to its lower surface negative charge and higher hydrophobicity, resulting in more photocatalyst-algae heteroaggregates formation; 2) Cu-MOF-4 had greater electron-hole pairs separation ability, thus exhibiting higher reactive oxygen species (ROS) production; 3) Cu-MOF-4 had greater hydrostability than other Cu-MOFs, leading to more sustained ROS generation. Additionally, the reusability of Cu-MOF-4 was also greater than other Cu-MOFs.
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Affiliation(s)
- Le Yue
- Institute of Environmental Processes and Pollution Control, and School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology, and Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Mengna Tao
- Institute of Environmental Processes and Pollution Control, and School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology, and Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Lanqing Xu
- Institute of Environmental Processes and Pollution Control, and School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology, and Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Chuanxi Wang
- Institute of Environmental Processes and Pollution Control, and School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology, and Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Yuao Xu
- Institute of Environmental Processes and Pollution Control, and School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology, and Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Yinglin Liu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Xuesong Cao
- Institute of Environmental Processes and Pollution Control, and School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology, and Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122, China.
| | - Jason C White
- The Connecticut Agricultural Experiment Station, New Haven, CT 06511, United States
| | - Zhenyu Wang
- Institute of Environmental Processes and Pollution Control, and School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology, and Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China
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Godlewska M, Balk H, Izydorczyk K, Kaczkowski Z, Mankiewicz-Boczek J, Ye S. Rapid in situ assessment of high-resolution spatial and temporal distribution of cyanobacterial blooms using fishery echosounder. Sci Total Environ 2023; 857:159492. [PMID: 36257442 DOI: 10.1016/j.scitotenv.2022.159492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 10/12/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
Cyanobacterial blooms are increasing in frequency, magnitude, and duration globally because of enhanced eutrophication and climate change. Thus, comprehensive investigation and systematic monitoring of the spatial and temporal distribution of cyanobacteria in aquatic environments are urgently needed to better understand bloom development and complex interactions within a dynamic environment. Various methods have been used to investigate the distribution of cyanobacteria, however, none of them can provide high-resolution data for the three-dimensional spatial structure of the bloom and its dynamics in real time. In the present study, we investigated the applicability of a high-frequency (200 kHz) fishery echosounder, a type widely used in fisheries acoustics, to detect and estimate the cyanobacterial genus Microcystis bloom distribution and biomass in a shallow lake (Sulejów Reservoir, Poland). Verification of the usefulness of in situ acoustic quantification of bloom-forming cyanobacteria was based on a comparison of acoustic estimates of cyanobacterial biomass with the ground truth-that is, fluorometric measurements and chlorophyll a concentrations. We compared the acoustic estimates with other methods for continuous measurements along 10 predetermined parallel transects and point samples at 14 stations situated on the transects. In vertical hydroacoustic measurements at night, we observed that cyanobacterial biomass was highest in the uppermost layer and diminished continuously with depth. For both horizontal and vertical continuous measurements, we found significant positive correlations between acoustic and fluorometric estimates of cyanobacterial biomass. The traditional point samples measurements, however, did not agree equally well with the acoustic estimates, especially for vertical beam. We argue that the point measurements have more stochastic character and less adequately describe dynamic changes in the cyanobacteria distribution than continuous acoustic estimates. More studies are required to explore the cyanobacteria distribution patterns under different biological, physical, and meteorological conditions.
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Affiliation(s)
- Małgorzata Godlewska
- European Regional Centre for Ecohydrology of the Polish Academy of Sciences, Łódź, Poland
| | - Helge Balk
- Oslo University, Department of Physics, Oslo, Norway
| | - Katarzyna Izydorczyk
- European Regional Centre for Ecohydrology of the Polish Academy of Sciences, Łódź, Poland
| | - Zbigniew Kaczkowski
- University of Łódź, Faculty of Biology and Environmental Protection, UNESCO Chair on Ecohydrology and Applied Ecology, Łódź, Poland
| | - Joanna Mankiewicz-Boczek
- University of Łódź, Faculty of Biology and Environmental Protection, UNESCO Chair on Ecohydrology and Applied Ecology, Łódź, Poland
| | - Shaowen Ye
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.
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6
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Hu L, Wang R, Wang M, Xu Y, Wang C, Liu Y, Chen J. Research progress of photocatalysis for algae killing and inhibition: a review. Environ Sci Pollut Res Int 2022; 29:47902-47914. [PMID: 35522403 DOI: 10.1007/s11356-022-20645-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 05/02/2022] [Indexed: 06/14/2023]
Abstract
The healthy development of biodiversity has been threatened frequent water eutrophication. In recent years, photocatalytic technology, which has attracted researchers' attention, not only showed increasing potential in the field of organic pollutant degradation, but also many kinds of photocatalysts were used in the field of red tide pollution control at present, which showed superior ability to inactivate harmful algae and degrade algal toxins. Researches have also explored the mechanisms of photocatalytic algae inhibition. In this study, the current research progress in the field of photocatalytic algae inhibition was systematically discussed from several aspects, such as common types of photocatalysts, modification methods of photocatalysts, types of tested algae for photocatalytic algae inhibition, and action mechanism of inactivated algae cells, so as to provide a certain theoretical basis for further application research of photocatalysts in the field of algae removal in the later period.
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Affiliation(s)
- Lijun Hu
- School of Life Science, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Renjun Wang
- School of Life Science, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Mengjiao Wang
- School of Life Science, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Yuling Xu
- School of Life Science, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Chao Wang
- School of Life Science, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Yanyan Liu
- School of Life Science, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Junfeng Chen
- School of Life Science, Qufu Normal University, Qufu, 273165, People's Republic of China.
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7
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Effiong K, Hu J, Xu C, Zhang Y, Yu S, Tang T, Huang Y, Lu Y, Li W, Zeng J, Xiao X. 3-Indoleacrylic acid from canola straw as a promising antialgal agent - Inhibition effect and mechanism on bloom-forming Prorocentrum donghaiense. Mar Pollut Bull 2022; 178:113657. [PMID: 35452911 DOI: 10.1016/j.marpolbul.2022.113657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 04/07/2022] [Accepted: 04/09/2022] [Indexed: 06/14/2023]
Abstract
Harmful algal blooms (HABs) have induced severe damage worldwide. A novel high-efficient antialgal natural chemical, 3-indoleacrylic acid (3-IDC) with a 5-day half-maximal inhibitory concentration (IC50, 5d), was discovered from canola straw, and its algal inhibition mechanism was investigated. Adverse effects were observed on the growth of P. donghaiense with 3-IDC addition, following an increase in reactive oxygen species (ROS) production. 3-IDC also hindered the photosynthetic mechanism of P. donghaiense cells. Transcriptional results showed 3-IDC inhibiting the functions of all the nutrient assimilating genes, down-regulated ribulose-1,5-bisphosphate carboxylase/oxygenase II, and cytochrome f genes. The expression of heat shock protein (HSP) 70 and 90 and rhodopsin genes were also suppressed. The binding affinity of investigated receptors was observed. The conformational changes induced by the spatial microstructural alteration through 3-IDC may further contribute to the perturbation of those enzyme catalytic activities. The present results provide new insights on controlling HABs using 3-IDC.
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Affiliation(s)
- Kokoette Effiong
- Department of Marine Science, Ocean College, Zhejiang University, Zhoushan 316021, People's Republic of China
| | - Jing Hu
- Department of Marine Science, Ocean College, Zhejiang University, Zhoushan 316021, People's Republic of China
| | - Caicai Xu
- Department of Marine Science, Ocean College, Zhejiang University, Zhoushan 316021, People's Republic of China
| | - Yiyi Zhang
- Department of Marine Science, Ocean College, Zhejiang University, Zhoushan 316021, People's Republic of China
| | - Shumiao Yu
- Department of Marine Science, Ocean College, Zhejiang University, Zhoushan 316021, People's Republic of China
| | - Tao Tang
- Department of Marine Science, Ocean College, Zhejiang University, Zhoushan 316021, People's Republic of China
| | - Yuzhou Huang
- Department of Marine Science, Ocean College, Zhejiang University, Zhoushan 316021, People's Republic of China
| | - Yongliang Lu
- China National Rice Research Institute, Hangzhou 310012, People's Republic of China
| | - Wei Li
- Academy of Agriculture and Forestry, Qinghai University, Xining 810016, People's Republic of China
| | - Jiangning Zeng
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, People's Republic of China
| | - Xi Xiao
- Department of Marine Science, Ocean College, Zhejiang University, Zhoushan 316021, People's Republic of China.
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He L, Lin Z, Wang Y, He X, Zhou J, Guan M, Zhou J. Facilitating harmful algae removal in fresh water via joint effects of multi-species algicidal bacteria. J Hazard Mater 2021; 403:123662. [PMID: 32846260 DOI: 10.1016/j.jhazmat.2020.123662] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 08/01/2020] [Accepted: 08/03/2020] [Indexed: 05/12/2023]
Abstract
Harmful algae blooms posing serious threats to the ecological environment occur frequently across the world. Multi-species algicidal bacteria were enriched by utilizing immobilized carriers in a pilot scale experiment, which significantly promoted the effect of algal control in the reactors. Under the optimal condition, the algicidal ratio and chlorophyll a degradation rate reached 87.69% and 47.00 μg/(L·d), respectively. The growth of Cyanophyta, diatom, Dinoflagellate and Cryptophyta was inhibited significantly by the joint action of algicidal bacteria and light shading of fillers, accounting for 53.74% and 36.47%, respectively. The results of 16S rRNA high-throughput sequencing suggested algicidal bacteria (10.17%) belonging to 13 genera were enriched. Among the algicidal process, Bacillus and Pseudomonas played crucial roles. Fluorescence spectroscopy and UV254 were adopted to assess the release of dissolved organic matter (DOM) and the precursors of disinfection by-products (DBPs). Two efficient algicidal strains (C1, C4) were isolated which showed high homology with Enterobacter asburiae JCM6051(T) and Pseudomonas simiae oli(T), respectively. This study provided new insights into the in-situ bioremediation of eutrophication in fresh water.
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Affiliation(s)
- Lei He
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Ziyuan Lin
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Yingmu Wang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Xuejie He
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Jiong Zhou
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Maoquan Guan
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Jian Zhou
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China.
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9
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Gravinese PM, Saso E, Lovko VJ, Blum P, Cole C, Pierce RH. Karenia brevis causes high mortality and impaired swimming behavior of Florida stone crab larvae. Harmful Algae 2019; 84:188-194. [PMID: 31128803 DOI: 10.1016/j.hal.2019.04.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 03/19/2019] [Accepted: 04/12/2019] [Indexed: 06/09/2023]
Abstract
The dinoflagellate Karenia brevis causes harmful algal blooms commonly referred to as red tides that are prevalent along Florida's gulf coast. Severe blooms often cause fish kills, turbid water, and hypoxic events all of which can negatively impact local fisheries. The stone crab, Menippe mercenaria, is a ˜$25 million per year fishery that occurs primarily along Florida's gulf coast. On the west Florida shelf, red tides occur from fall through spring, although severe blooms can occur during the summer. During the summer, stone crabs are reproductive and release larvae that are transported offshore where K. brevis blooms originate. This study determined the effects of K. brevis exposure on the survivorship, vertical swimming behavior, and oxygen consumption of stage-1 larval stone crabs. Survivorship was determined by exposing larvae to high (> 1 × 106 cells L-1) and medium (˜1 × 105 cells L-1) K. brevis concentrations for 96-hrs and were compared to controls that had no algae present. Larval swimming behavior (i.e., geotaxis) and oxygen consumption were monitored after 6-hr exposure to K. brevis. After 96-hrs of exposure, mortality was 100% and 30% for larvae in the high and medium concentrations of K. brevis, respectively, relative to the control. Larval swimming behavior was reversed in the K. brevis treatment; however oxygen consumption rates did not differ among treatments. These results suggest that severe blooms during the summer may reduce larval supply and serve as a potential bottleneck for new individuals recruiting into the fishery in years following a K. brevis bloom.
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Affiliation(s)
- Philip M Gravinese
- Mote Marine Laboratory, Fisheries Ecology and Enhancement Program, 1600 Ken Thompson Parkway, Sarasota, FL, 34236, United States.
| | - Emma Saso
- Pitzer College, Keck Science Department, 925 N Mills Avenue, Claremont, CA, 91711, United States.
| | - Vincent J Lovko
- Mote Marine Laboratory, Phytoplankton Ecology Program, 1600 Ken Thompson Parkway, Sarasota, FL, 34236, United States.
| | - Patricia Blum
- Mote Marine Laboratory, Ecotoxicology Program, 1600 Ken Thompson Parkway, Sarasota, FL, 34236, United States.
| | - Cody Cole
- Mote Marine Laboratory, Phytoplankton Ecology Program, 1600 Ken Thompson Parkway, Sarasota, FL, 34236, United States.
| | - Richard H Pierce
- Mote Marine Laboratory, Ecotoxicology Program, 1600 Ken Thompson Parkway, Sarasota, FL, 34236, United States.
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Ai H, Qiu Y, He Q, He Y, Yang C, Kang L, Luo H, Li W, Mao Y, Hu M, Li H. Turn the potential greenhouse gases into biomass in harmful algal blooms waters: A microcosm study. Sci Total Environ 2019; 655:520-528. [PMID: 30476831 DOI: 10.1016/j.scitotenv.2018.11.262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 10/22/2018] [Accepted: 11/17/2018] [Indexed: 06/09/2023]
Abstract
Carbon sources are a critical requirement for the proliferation of algae and the occurrence of harmful algal blooms (HABs), but are often turned into methane (CH4) after the collapse of severe HABs. Here, we attempt to remove HABs, reduce algal-derived CH4 emissions, and repair the broken carbon biogeochemical cycle in aquatic systems using an integrated ecological approach including flocculation, capping, and submerged macrophyte induction, preliminary at a microcosm scale. This strategy sustainably reached 98% algal removal after 65 days of incubation and resulted in an aerobic microenvironment (ORP = +12 mv) at the sediment-water interface. The approach contributed to an approximate 60% decline in CH4 released from the aquatic environment into the atmosphere jointly through assimilation of mineralized organic carbon by submerged macrophytes, production of carbon dioxide (CO2) under aerobic conditions, and aerobic CH4 oxidation. Some of the CO2 produced in the aquatic phase contributed to inorganic carbon and formed the submerged macrophytes biomass. A combination of flocculation, capping, and submerged macrophyte incubation were significant contributors to altering the carbon budget and sealing nearly 99% of the carbon in the simulated ecosystem (the majority in sediment, followed by submerged macrophytes), providing a sustainable way to reuse algal-derived carbon and reduce CH4 emissions.
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Affiliation(s)
- Hainan Ai
- Key Laboratory of Eco-Environment of Three Gorges Region, Ministry of Education, Chongqing University, Chongqing 400044, China
| | - Yixi Qiu
- Key Laboratory of Eco-Environment of Three Gorges Region, Ministry of Education, Chongqing University, Chongqing 400044, China
| | - Qiang He
- Key Laboratory of Eco-Environment of Three Gorges Region, Ministry of Education, Chongqing University, Chongqing 400044, China
| | - Yixin He
- Key Laboratory of Eco-Environment of Three Gorges Region, Ministry of Education, Chongqing University, Chongqing 400044, China
| | - Chun Yang
- Key Laboratory of Eco-Environment of Three Gorges Region, Ministry of Education, Chongqing University, Chongqing 400044, China
| | - Li Kang
- Key Laboratory of Eco-Environment of Three Gorges Region, Ministry of Education, Chongqing University, Chongqing 400044, China
| | - Huarui Luo
- Key Laboratory of Eco-Environment of Three Gorges Region, Ministry of Education, Chongqing University, Chongqing 400044, China
| | - Wei Li
- Key Laboratory of Eco-Environment of Three Gorges Region, Ministry of Education, Chongqing University, Chongqing 400044, China
| | - Yufeng Mao
- Key Laboratory of Eco-Environment of Three Gorges Region, Ministry of Education, Chongqing University, Chongqing 400044, China
| | - Meijuan Hu
- Key Laboratory of Eco-Environment of Three Gorges Region, Ministry of Education, Chongqing University, Chongqing 400044, China
| | - Hong Li
- Key Laboratory of Eco-Environment of Three Gorges Region, Ministry of Education, Chongqing University, Chongqing 400044, China.
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11
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Tang C, Sun B, Yu K, Shi J, Liu M, Jiang T, Huo Y, He P. Environmental triggers of a Microcystis (Cyanophyceae) bloom in an artificial lagoon of Hangzhou Bay, China. Mar Pollut Bull 2018; 135:776-782. [PMID: 30301097 DOI: 10.1016/j.marpolbul.2018.08.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Revised: 07/27/2018] [Accepted: 08/01/2018] [Indexed: 06/08/2023]
Abstract
The relationship between Microcystis abundance and environmental variables was studied during a Microcystis bloom in the summer months of 2016 in an artificial lagoon of Hangzhou Bay, China. It was determined that Microcystis abundance increased from 0.16 × 104 cell/L to 5.8 × 107 cell/L within 17 days from 28 July to 14 August, contributing to 96.84-99.56% of the total phytoplankton abundance. Then, Microcystis gradually disappeared 57 days afterwards. The results showed that the growth of Microcystis, including the stage of recovery, outbreak, subsidence and disappearance, was significantly correlated with water temperature, salinity, soluble reactive phosphorus (PO4-P), dissolved inorganic nutrients (DIN), silicate (SiO4-Si), the ratio of DIN/SiO4-Si and zooplankton abundance, and the key environmental triggers which promoted the outbreak of Microcystis were water temperature, PO4-P concentration and zooplankton abundance in this artificial lagoon.
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Affiliation(s)
- Chunyu Tang
- College of Marin Ecology and Environment, Shanghai Ocean University, Shanghai 201306, PR China; Marine Scientific Research Institute, Shanghai Ocean University, Shanghai 201306, PR China; Water Environment & Ecology Engineering Research Center of Shanghai Institution of Higher Education, Shanghai 201306, PR China
| | - Bin Sun
- College of Marin Ecology and Environment, Shanghai Ocean University, Shanghai 201306, PR China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, PR China; Marine Scientific Research Institute, Shanghai Ocean University, Shanghai 201306, PR China; Water Environment & Ecology Engineering Research Center of Shanghai Institution of Higher Education, Shanghai 201306, PR China
| | - Kefeng Yu
- College of Marin Ecology and Environment, Shanghai Ocean University, Shanghai 201306, PR China; Marine Scientific Research Institute, Shanghai Ocean University, Shanghai 201306, PR China; Water Environment & Ecology Engineering Research Center of Shanghai Institution of Higher Education, Shanghai 201306, PR China
| | - Jinting Shi
- College of Marin Ecology and Environment, Shanghai Ocean University, Shanghai 201306, PR China; Marine Scientific Research Institute, Shanghai Ocean University, Shanghai 201306, PR China; Water Environment & Ecology Engineering Research Center of Shanghai Institution of Higher Education, Shanghai 201306, PR China
| | - Mengmeng Liu
- College of Marin Ecology and Environment, Shanghai Ocean University, Shanghai 201306, PR China; Marine Scientific Research Institute, Shanghai Ocean University, Shanghai 201306, PR China; Water Environment & Ecology Engineering Research Center of Shanghai Institution of Higher Education, Shanghai 201306, PR China
| | - Ting Jiang
- College of Marin Ecology and Environment, Shanghai Ocean University, Shanghai 201306, PR China; Marine Scientific Research Institute, Shanghai Ocean University, Shanghai 201306, PR China; Water Environment & Ecology Engineering Research Center of Shanghai Institution of Higher Education, Shanghai 201306, PR China
| | - Yuanzi Huo
- College of Marin Ecology and Environment, Shanghai Ocean University, Shanghai 201306, PR China; Marine Scientific Research Institute, Shanghai Ocean University, Shanghai 201306, PR China; Water Environment & Ecology Engineering Research Center of Shanghai Institution of Higher Education, Shanghai 201306, PR China.
| | - Peimin He
- College of Marin Ecology and Environment, Shanghai Ocean University, Shanghai 201306, PR China; Marine Scientific Research Institute, Shanghai Ocean University, Shanghai 201306, PR China; Water Environment & Ecology Engineering Research Center of Shanghai Institution of Higher Education, Shanghai 201306, PR China.
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12
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Zhang H, Lyu T, Bi L, Tempero G, Hamilton DP, Pan G. Combating hypoxia/anoxia at sediment-water interfaces: A preliminary study of oxygen nanobubble modified clay materials. Sci Total Environ 2018; 637-638:550-560. [PMID: 29754089 DOI: 10.1016/j.scitotenv.2018.04.284] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 04/20/2018] [Accepted: 04/20/2018] [Indexed: 06/08/2023]
Abstract
Combating hypoxia/anoxia is an increasingly common need for restoring natural waters suffering from eutrophication. Oxygen nanobubble modified natural particles were investigated for mitigating hypoxia/anoxia at the sediment-water interface (SWI) in a simulated column experiment. By adding oxygen nanobubble modified zeolites (ONMZ) and local soils (ONMS), the oxygen nanobubble concentrations (105-107 particles/mL) were several orders of magnitude higher in the water than the original water solution (104 particles/mL) within 24 h. In the column experiment, an oxygen-locking surface sediment layer was formed after capping with ONMZ and ONMS particles. The synergy of diffusion of oxygen nanobubbles and retention of oxygen in this layer contributes to both the increase of DO and reversal of hypoxic conditions. The overlying water had significantly higher dissolved oxygen (DO) values (4-7.5 mg/L) over the experimental period of 127 days in ONMZ and ONMS compared with the control systems (around 1 mg/L). Moreover, the oxidation-reduction potential (ORP) was reversed from -200 mV to 180-210 mV and maintained positive values for 89 days in ONMZ systems. In the control systems, ORP was consistently negative and decreased from -200 mV to -350 mV. The total phosphorus (TP) flux from sediment to water across the SWI was negative in the ONMZ and ONMS treated systems, but positive in the control system, indicating the sediment could be switched from TP source to sink. The oxygen-locking capping layer was crucial in preventing oxygen consumption caused by the reduced substances released from the anoxic sediment. The study outlines a potentially promising technology for mitigating sediment anoxia and controlling nutrient release from sediments, which could contribute significantly to addressing eutrophication and ecological restoration.
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Affiliation(s)
- Honggang Zhang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Tao Lyu
- School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Brackenhurst Campus, NG250QF, UK
| | - Lei Bi
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Grant Tempero
- Environmental Research Institute, University of Waikato, Private Bag 3105, Hamilton 3240, New Zealand
| | - David P Hamilton
- Environmental Research Institute, University of Waikato, Private Bag 3105, Hamilton 3240, New Zealand; Current Address: Australian Rivers Institute, Griffith University, 170 Kessels Road, Brisbane 4120, Australia
| | - Gang Pan
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Brackenhurst Campus, NG250QF, UK.
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13
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Willis A, Woodhouse JN, Ongley SE, Jex AR, Burford MA, Neilan BA. Genome variation in nine co-occurring toxic Cylindrospermopsis raciborskii strains. Harmful Algae 2018; 73:157-166. [PMID: 29602504 DOI: 10.1016/j.hal.2018.03.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 02/26/2018] [Accepted: 03/01/2018] [Indexed: 06/08/2023]
Abstract
Cyanobacteria form harmful algal blooms and are highly adapted to a range of habitats, in part due to their phenotype plasticity. This plasticity is partially the result of co-existence of multiple strains within a single population. The toxic cyanobacterium Cylindrospermopsis raciborskii has remarkable phenotypic plasticity, strain variation and environmental adaptation resulting in an expansion of its global range. To understand the genetic basis of the high level of plasticity within a C. raciborskii population, the genomes of nine co-occurring strains were compared. The strains differed in morphology, toxin cell quotas and physiology, despite being obtained from a single water sample. Comparative genomics showed that three coiled strains were 3.9 Mbp in size, with 3544 ± 11 genes, while straight strains were 3.8 Mbp in size, with 3485 ± 20 genes. The core proteome comprised 86% of the genome and consisted of 2891 orthologous groups (OGs), whereas the variable genome comprised ∼14% (847 OGs), and the strain specific genome only ∼1% (433 OGs).There was a high proportion of variable strain-specific genes for the very closely related strains, which may underpin strain differentiation. The variable genes were associated with environmental responses and adaptation, particularly phage defence, DNA repair, membrane transport, and stress, illustrative of the adaptability of the strains in response to environmental and biological stressors. This study shows that high genomic variability exists between co-occurring strains and may be the basis of strain phenotypic differences and plasticity of populations. Therefore management and prediction of blooms of this harmful species requires different approaches to capture this strain variability.
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Affiliation(s)
- Anusuya Willis
- Australian Rivers Institute, Griffith University, QLD, Australia.
| | - Jason N Woodhouse
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, NSW, Australia
| | - Sarah E Ongley
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, NSW, Australia; School of Environmental and Life Sciences, The University of Newcastle, NSW, Australia
| | - Aaron R Jex
- Faculty of Veterinary and Agricultural Sciences, University of Melbourne, VIC, Australia; Population Health and Immunity Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
| | | | - Brett A Neilan
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, NSW, Australia; School of Environmental and Life Sciences, The University of Newcastle, NSW, Australia.
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Xiao M, Willis A, Burford MA, Li M. Review: a meta-analysis comparing cell-division and cell-adhesion in Microcystis colony formation. Harmful Algae 2017; 67:85-91. [PMID: 28755723 DOI: 10.1016/j.hal.2017.06.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Revised: 06/28/2017] [Accepted: 06/29/2017] [Indexed: 06/07/2023]
Abstract
The freshwater cyanobacterium Microcystis is a nuisance species. It forms large blooms on the water surface and overwhelmingly dominates the ecosystem through the formation of colonies from single cells surrounded by mucilage; however, the mechanism of colony formation is poorly understood. Two mechanisms of Microcystis colony formation have been proposed: cell-division, where cells remain attached after binary fission; and cell-adhesion, where single cells stick together. This paper examined the published literature on Microcystis colony formation to clarify the mechanism of colony formation and its relationship to environmental drivers. This meta-analysis showed that in laboratory experiments, colony formation by cell-division was mainly induced by zooplankton filtrate, high Pb2+ concentrations, the presence of the cyanobacterium Cylindrospermopsis raciborskii, heterotrophic bacteria, and low temperature and low light intensities. Alternatively, colony formation by cell-adhesion was mainly induced by zooplankton grazing, high Ca2+ concentrations, and microcystins. Therefore, colony formation by cell-division appears to be a slower process and to occur under an environmental stress factor, while cell-adhesion occurs more quickly to an environmental threat. Applying the criteria to the different morphospecies of Microcystis, it was found that under natural conditions M. ichthyoblabe colonies formed predominantly through cell-division, whereas M. wesenbergii colonies formed predominantly through cell-adhesion. This study provides new insights into the mechanisms and environmental drivers of colony formation by Microcystis.
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Affiliation(s)
- Man Xiao
- College of Resources and Environment, Northwest A & F University, Yangling 712100, PR China; Australian Rivers Institute, Griffith University, 170 Kessels Rd., Nathan, Queensland 4111, Australia; School of Environment, Griffith University, 170 Kessels Rd., Nathan, Queensland 4111, Australia
| | - Anusuya Willis
- Australian Rivers Institute, Griffith University, 170 Kessels Rd., Nathan, Queensland 4111, Australia
| | - Michele A Burford
- Australian Rivers Institute, Griffith University, 170 Kessels Rd., Nathan, Queensland 4111, Australia; School of Environment, Griffith University, 170 Kessels Rd., Nathan, Queensland 4111, Australia
| | - Ming Li
- College of Resources and Environment, Northwest A & F University, Yangling 712100, PR China.
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Trinchet I, Cadel-Six S, Djediat C, Marie B, Bernard C, Puiseux-Dao S, Krys S, Edery M. Toxicity of harmful cyanobacterial blooms to bream and roach. Toxicon 2013; 71:121-7. [PMID: 23732128 DOI: 10.1016/j.toxicon.2013.05.019] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Accepted: 05/21/2013] [Indexed: 11/20/2022]
Abstract
Aquatic ecosystems are facing increasing environmental pressures, leading to an increasing frequency of cyanobacterial Harmful Algal Blooms (cHABs) that have emerged as a worldwide concern due to their growing frequency and their potential toxicity to the fauna that threatens the functioning of ecosystems. Cyanobacterial blooms raise concerns due to the fact that several strains produce potent bioactive or toxic secondary metabolites, such as the microcystins (MCs), which are hepatotoxic to vertebrates. These strains of cyanobacteria may be potentially toxic to fish via gastrointestinal ingestion and also by direct absorption of the toxin MC from the water. The purpose of our study was to investigate toxic effects observed in fish taken from several lakes in the Ile-de-France region, where MCs-producing blooms occur. This study comprises histological studies and the measurement of MC concentrations in various organs. The histological findings are similar to those obtained following laboratory exposure of medaka fish to MCs: hepatic lesions predominate and include cell lysis and cell detachment. MC concentrations in the organs revealed that accumulation was particularly high in the digestive tract and the liver, which are known to be classical targets of MCs. In contrast concentrations were very low in the muscles. Differences in the accumulation of MC variants produced by blooms indicate that in order to more precisely evaluate the toxic potential of a specific bloom it is necessary not only to consider the concentration of toxins, but also the variants produced.
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