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Li D, Qiu J, Wang X, Li A, Wu G, Yin C, Yang Y. Spatial distribution of lipophilic shellfish toxins in seawater and sediment in the Bohai Sea and the Yellow Sea, China. CHEMOSPHERE 2024; 362:142780. [PMID: 38971437 DOI: 10.1016/j.chemosphere.2024.142780] [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: 03/19/2024] [Revised: 07/01/2024] [Accepted: 07/04/2024] [Indexed: 07/08/2024]
Abstract
Lipophilic shellfish toxins (LSTs) are widely distributed in marine environments worldwide, potentially threatening marine ecosystem health and aquaculture safety. In this study, two large-scale cruises were conducted in the Bohai Sea and the Yellow Sea, China, in spring and summer 2023 to clarify the composition, concentration, and spatial distribution of LSTs in the water columns and sediments. Results showed that okadaic acid (OA), dinophysistoxin-1 (DTX1) and/or pectenotoxin-2 (PTX2) were detected in 249 seawater samples collected in spring and summer. The concentrations of ∑LSTs in seawater were ranging of ND (not detected) -13.86, 1.60-17.03, 2.73-17.39, and 1.26-30.21 pmol L-1 in the spring surface, intermediate, bottom water columns and summer surface water layers, respectively. The detection rates of LSTs in spring and summer seawater samples were 97% and 100%, respectively. The high concentrations of ∑LSTs were mainly distributed in the north Yellow Sea and the northeast Bohai Sea in spring, and in the northeast Yellow Sea, the waters around Laizhou Bay and Rongcheng Bay in summer. Similarly, only OA, DTX1 and PTX2 were detected in the surface sediments. Overall, the concentration of ∑LSTs in the surface sediments of the northern Yellow Sea was higher than that in other regions. In sediment cores, PTX2 was mainly detected in the upper sediment samples, whereas OA and DTX1 were detected in deeper sediments, and LSTs can persist in the sediments for a long time. Overall, OA, DTX1 and PTX2 were widely distributed in the water column and surface sediments in the Bohai Sea and the Yellow Sea, China. The results of this study contribute to the understanding of spatial distribution of LSTs in seawater and sediment environmental media and provide basic information for health risk assessment of phycotoxins.
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Affiliation(s)
- Dongyue Li
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Jiangbing Qiu
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China; Key Laboratory of Marine Environment and Ecology, Ocean University of China, Ministry of Education, Qingdao 266100, China.
| | - Xiaoyun Wang
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Aifeng Li
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China; Key Laboratory of Marine Environment and Ecology, Ocean University of China, Ministry of Education, Qingdao 266100, China.
| | - Guangyao Wu
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Chao Yin
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Yongmeng Yang
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
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Wu G, Qiu J, Yan G, Li A, Xu X, Wang X, Li D. Spatiotemporal distribution of lipophilic shellfish toxins in plankton and shellfish in the offshore regions of Shandong province, China. JOURNAL OF HAZARDOUS MATERIALS 2024; 477:135363. [PMID: 39084006 DOI: 10.1016/j.jhazmat.2024.135363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 07/13/2024] [Accepted: 07/27/2024] [Indexed: 08/02/2024]
Abstract
Lipophilic shellfish toxins (LSTs) threaten the ecosystem health and seafood safety. To comprehensively investigate the spatiotemporal distribution of common LSTs in phytoplankton, zooplankton and economic shellfish, three cruises were conducted in five typical offshore aquaculture regions of Shandong province, China, including Haizhou Bay, Jiaozhou Bay, Sanggou Bay, Sishili Bay and Laizhou Bay, in spring (March-April), summer (July-August) and autumn (November-December). This study revealed significant variability in the composition and content of LSTs in phytoplankton samples collected from different regions. Pectenotoxin-2 (PTX2), dinophysistoxin-1 (DTX1) and okadaic acid (OA) were mainly detected in the ranges of not detected (nd)-5045 pmol g-1 dry weight (dw), nd-159 pmol g-1 dw, and nd-154 pmol g-1 dw, respectively. In zooplankton, DTX1 and OA were the predominant components of LSTs, with the highest levels of ∑LSTs in spring ranging from nd to 406 pmol g-1 dw. Spearman's correlation analysis between LSTs and environmental factors indicated significant correlations for the contents of homo-yessotoxin (hYTX), gymnodimine-A (GYM-A), and spirolide-1 (SPX1) with these factors. Totally relatively low levels of LSTs with dominative DTX1 were detected in economic shellfish, which showed a low risk to seafood safety for human health.
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Affiliation(s)
- Guangyao Wu
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Jiangbing Qiu
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China; Key Laboratory of Marine Environment and Ecology, Ocean University of China, Ministry of Education, Qingdao 266100, China.
| | - Guowang Yan
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Aifeng Li
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China; Key Laboratory of Marine Environment and Ecology, Ocean University of China, Ministry of Education, Qingdao 266100, China.
| | - Xiaoqing Xu
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Xiaoyun Wang
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Dongyue Li
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
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Fuenzalida G, Yarimizu K, Norambuena L, Fujiyoshi S, Perera IU, Rilling JI, Campos M, Ruiz-Gil T, Vilugrón J, Sandoval-Sanhueza A, Ortiz M, Espinoza-González O, Guzmán L, Acuña JJ, Jorquera MA, Maruyama F. Environmental evaluation of the Reloncaví estuary in southern Chile based on lipophilic shellfish toxins as related to harmful algal blooms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 928:172374. [PMID: 38615760 DOI: 10.1016/j.scitotenv.2024.172374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 04/08/2024] [Accepted: 04/08/2024] [Indexed: 04/16/2024]
Abstract
The Reloncaví estuary in southern Chile is famous for its aquaculture. However, recurring harmful algal blooms have adversely affected mussel production. Therefore, regular monitoring of algal toxins is urgently needed to better understand the contamination status of the estuary. In this study, we quantified 15 types of lipophilic shellfish toxins in Metri Bay in the Reloncaví estuary on a biweekly basis for 4 years. We identified algal species using microscopy and metabarcoding analysis. We also measured water temperature, salinity, chlorophyll-a, and dissolved oxygen to determine the potential relationships of these parameters with algal toxin production. Our results revealed the presence of a trace amount of pectenotoxin and the causal phytoplankton Dinophysis, as well as yessotoxin and the causal phytoplankton Protoceratium. Statistical analysis indicated that fluctuations in water temperature affected the detection of these toxins. Additionally, metabarcoding analysis detected the highly toxic phytoplankton Alexandrium spp. in some samples. Although our results suggest that the level of lipophilic shellfish toxins in Metri Bay during the study period was insignificantly low using our current LC-MS method, the confirmed presence of highly toxic algae in Metri Bay raises concerns, given that favorable environmental conditions could cause blooms.
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Affiliation(s)
- Gonzalo Fuenzalida
- Centro de Estudios de Algas Nocivas (CREAN), Instituto de Fomento Pesquero (IFOP), Padre Harter 547, Puerto Montt 5480000, Chile; Departamento de Ciencias Basicas, Facultad de Ciencias, Universidad Santo Tomas, Buena Vecindad #91, Puerto Montt 5480000, Chile.
| | - Kyoko Yarimizu
- Microbial Genomics and Ecology, The IDEC Institute, Hiroshima University, 1-3-2 Kagamiyama, Higashi-Hiroshima City, Hiroshima 739-8511, Japan.
| | - Luis Norambuena
- Centro de Estudios de Algas Nocivas (CREAN), Instituto de Fomento Pesquero (IFOP), Padre Harter 547, Puerto Montt 5480000, Chile.
| | - So Fujiyoshi
- Microbial Genomics and Ecology, The IDEC Institute, Hiroshima University, 1-3-2 Kagamiyama, Higashi-Hiroshima City, Hiroshima 739-8511, Japan.
| | - Ishara Uhanie Perera
- Microbial Genomics and Ecology, The IDEC Institute, Hiroshima University, 1-3-2 Kagamiyama, Higashi-Hiroshima City, Hiroshima 739-8511, Japan.
| | - Joaquin-Ignacio Rilling
- Laboratorio de Ecología Microbiana Aplicada (EMALAB), Departamento de Ciencias Quimicas y Recursos Naturales, Universidad de La Frontera, Ave. Francisco Salazar 01145, Temuco 4780000, Chile.
| | - Marco Campos
- Laboratorio de Ecología Microbiana Aplicada (EMALAB), Departamento de Ciencias Quimicas y Recursos Naturales, Universidad de La Frontera, Ave. Francisco Salazar 01145, Temuco 4780000, Chile; Laboratorio de Investigación en Salud de Precisión, Departamento de Procesos Diagnósticos y Evaluación, Facultad de Ciencias de la Salud, Universidad Católica de Temuco, Manuel Montt 056, Temuco 4780000, Chile
| | - Tay Ruiz-Gil
- Laboratorio de Ecología Microbiana Aplicada (EMALAB), Departamento de Ciencias Quimicas y Recursos Naturales, Universidad de La Frontera, Ave. Francisco Salazar 01145, Temuco 4780000, Chile
| | - Jonnathan Vilugrón
- Centro de Estudios de Algas Nocivas (CREAN), Instituto de Fomento Pesquero (IFOP), Padre Harter 547, Puerto Montt 5480000, Chile.
| | - Alondra Sandoval-Sanhueza
- Centro de Estudios de Algas Nocivas (CREAN), Instituto de Fomento Pesquero (IFOP), Padre Harter 547, Puerto Montt 5480000, Chile
| | - Mario Ortiz
- Centro de Estudios de Algas Nocivas (CREAN), Instituto de Fomento Pesquero (IFOP), Padre Harter 547, Puerto Montt 5480000, Chile
| | - Oscar Espinoza-González
- Centro de Estudios de Algas Nocivas (CREAN), Instituto de Fomento Pesquero (IFOP), Padre Harter 547, Puerto Montt 5480000, Chile.
| | - Leonardo Guzmán
- Centro de Estudios de Algas Nocivas (CREAN), Instituto de Fomento Pesquero (IFOP), Padre Harter 547, Puerto Montt 5480000, Chile.
| | - Jacqueline J Acuña
- Laboratorio de Ecología Microbiana Aplicada (EMALAB), Departamento de Ciencias Quimicas y Recursos Naturales, Universidad de La Frontera, Ave. Francisco Salazar 01145, Temuco 4780000, Chile.
| | - Milko A Jorquera
- Laboratorio de Ecología Microbiana Aplicada (EMALAB), Departamento de Ciencias Quimicas y Recursos Naturales, Universidad de La Frontera, Ave. Francisco Salazar 01145, Temuco 4780000, Chile.
| | - Fumito Maruyama
- Microbial Genomics and Ecology, The IDEC Institute, Hiroshima University, 1-3-2 Kagamiyama, Higashi-Hiroshima City, Hiroshima 739-8511, Japan.
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Zhu J, Li J, Wu J, Liu X, Lin Y, Deng H, Qin X, Wong MH, Chan LL. The Prevalence of Marine Lipophilic Phycotoxins Causes Potential Risks in a Tropical Small Island Developing State. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:9815-9827. [PMID: 38768015 DOI: 10.1021/acs.est.4c00512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Tropical small island developing states (SIDS), with their geographical isolation and limited resources, heavily rely on the fisheries industry for food and revenue. The presence of marine lipophilic phycotoxins (MLPs) poses risks to their economy and human health. To understand the contamination status and potential risks, the Republic of Kiribati was selected as the representative tropical SIDS and 55 species of 256 coral reef fish encompassing multiple trophic levels and feeding strategies were collected to analyze 17 typical MLPs. Our results showed that the potential risks of ciguatoxins were the highest and approximately 62% of fish species may pose risks for consumers. Biomagnification of ciguatoxins was observed in the food web with a trophic magnification factor of 2.90. Brevetoxin-3, okadaic acid, and dinophysistoxin-1 and -2 were first reported, but the risks posed by okadaic acid and dinophysistoxins were found to be negligible. The correlation analysis revealed that fish body size and trophic position are unreliable metrics to indicate the associated risks and prevent the consumption of contaminated fish. The potential risks of MLPs in Kiribati are of concern, and our findings can serve as valuable inputs for developing food safety policies and fisheries management strategies specific to tropical SIDS contexts.
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Affiliation(s)
- Jingyi Zhu
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon Tong , Hong Kong 999077, China
- Department of Biomedical Sciences, City University of Hong Kong, Kowloon Tong , Hong Kong 999077, China
| | - Jing Li
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon Tong , Hong Kong 999077, China
- Department of Transportation and Environment, Shenzhen Institute of Information Technology, Shenzhen 518172, China
| | - Jiajun Wu
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon Tong , Hong Kong 999077, China
- Shenzhen Key Laboratory for the Sustainable Use of Marine Biodiversity, Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
| | - Xiaowan Liu
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon Tong , Hong Kong 999077, China
- Department of Biomedical Sciences, City University of Hong Kong, Kowloon Tong , Hong Kong 999077, China
| | - Yuchen Lin
- Department of Biomedical Sciences, City University of Hong Kong, Kowloon Tong , Hong Kong 999077, China
| | - Hongzhen Deng
- Department of Biomedical Sciences, City University of Hong Kong, Kowloon Tong , Hong Kong 999077, China
| | - Xian Qin
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon Tong , Hong Kong 999077, China
| | - Ming Hung Wong
- Consortium on Health, Environment, Education, and Research (CHEER), The Education University of Hong Kong, Tai Po , Hong Kong 999077, China
| | - Leo Lai Chan
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon Tong , Hong Kong 999077, China
- Department of Biomedical Sciences, City University of Hong Kong, Kowloon Tong , Hong Kong 999077, China
- Shenzhen Key Laboratory for the Sustainable Use of Marine Biodiversity, Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
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Tang J, He X, Chen J, Cao W, Han T, Xu Q, Sun C. Occurrence and distribution of phycotoxins in the Antarctic Ocean. MARINE POLLUTION BULLETIN 2024; 201:116250. [PMID: 38479322 DOI: 10.1016/j.marpolbul.2024.116250] [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: 01/22/2024] [Revised: 02/28/2024] [Accepted: 03/07/2024] [Indexed: 04/07/2024]
Abstract
Lipophilic phycotoxins (LPTs) and domoic acid (DA) in Antarctic seawater, as well as parts of the South Pacific and the Southern Indian Oceans were systematically investigated. DA and six LPTs, namely pectenotoxin-2 (PTX2), okadaic acid (OA), yessotoxin (YTX), homo-yessotoxin (h-YTX), 13-desmethyl spirolide C (SPX1), and gymnodimine (GYM), were detected. PTX2, as the dominant LPTs, was widely distributed in seawater surrounding Antarctica, whereas OA, YTX, and h-YTX were irregularly distributed across the region. The total concentration of LPTs in surface seawater ranged from 0.10 to 13.57 ng/L (mean = 2.20 ng/L). ∑LPT levels were relatively higher in the eastern sea areas of Antarctica than in the western sea areas. PTX2 was the main LPT in the vertical profiles, and the PTX2 concentration was significantly higher in the epipelagic zone than water depths below 200 m. The predominant sources of PTX2 and OA in Antarctic sea areas are likely to be Dinophysis.
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Affiliation(s)
- Jiale Tang
- Qingdao Key Laboratory of Analytical Technology Development and Offshore Eco-Environment Conservation, Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Xiuping He
- Qingdao Key Laboratory of Analytical Technology Development and Offshore Eco-Environment Conservation, Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Ecology and Environmental Science, Laoshan Laboratory, Qingdao 266071,China
| | - Junhui Chen
- Qingdao Key Laboratory of Analytical Technology Development and Offshore Eco-Environment Conservation, Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Ecology and Environmental Science, Laoshan Laboratory, Qingdao 266071,China.
| | - Wei Cao
- Qingdao Key Laboratory of Analytical Technology Development and Offshore Eco-Environment Conservation, Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Tongzhu Han
- Qingdao Key Laboratory of Analytical Technology Development and Offshore Eco-Environment Conservation, Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Qinzeng Xu
- Qingdao Key Laboratory of Analytical Technology Development and Offshore Eco-Environment Conservation, Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Chengjun Sun
- Qingdao Key Laboratory of Analytical Technology Development and Offshore Eco-Environment Conservation, Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
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Zhang W, Ye Z, Qu P, Li D, Gao H, Liang Y, He Z, Tong M. Using solid phase adsorption toxin tracking and extended local similarity analysis to monitor lipophilic shellfish toxins in a mussel culture ranch in the Yangtze River Estuary. MARINE POLLUTION BULLETIN 2024; 199:116027. [PMID: 38217914 DOI: 10.1016/j.marpolbul.2024.116027] [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: 09/20/2023] [Revised: 01/03/2024] [Accepted: 01/03/2024] [Indexed: 01/15/2024]
Abstract
Harmful algal blooms (HABs) and their associated phycotoxins are increasing globally, posing great threats to local coastal ecosystems and human health. Nutrients have been carried by the freshwater Yangtze River and have entered the estuary, which was reported to be a biodiversity-rich but HAB-frequent region. Here, in situ solid phase adsorption toxin tracking (SPATT) was used to monitor lipophilic shellfish toxins (LSTs) in seawaters, and extended local similarity analysis (eLSA) was conducted to trace the temporal and special regions of those LSTs in a one-year trail in a mussel culture ranch in the Yangtze River Estuary. Nine analogs of LSTs, including okadaic acid (OA), dinophysistoxin-1 (DTX1), yessotoxin (YTX), homoyessotoxin (homoYTX), 45-OH-homoYTX, pectenotoxin-2 (PTX2), 7-epi-PTX2 seco acid (7-epi-PTX2sa), gymnodimine (GYM) and azaspiracids-3 (AZA3), were detected in seawater (SPATT) or rope farmed mussels. The concentrations of OA + DTX1 and homoYTX in mussels were positively correlated with those in SPATT samplers (Pearson test, p < 0.05), indicating that SPATT (with resin HP20) would be a good monitoring tool and potential indicator for OA + DTX1 and homoYTX in mussel Mytilus coruscus. The eLSA results indicated that late summer and early autumn were the most phycotoxin-contaminated seasons in the Yangtze River Estuary. OA + DTX1, homoYTX, PTX2 and GYM were most likely driven by the local growing HAB species in spring and summer, while Yangtze River diluted water may impact the accumulation of HAB species, causing potential phycotoxin contamination in the Yangtze River Estuary in autumn and winter. Together, the results showed that the mussel harvesting season, late summer and early autumn, would be the season with the greatest phycotoxin risk and would be the most contaminated by local growing toxic algae. Routine monitoring sites should be set up close to the local seawaters.
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Affiliation(s)
- Wenguang Zhang
- Ocean College, Zhejiang University, Zhoushan 316021, China
| | - Zi Ye
- Ocean College, Zhejiang University, Zhoushan 316021, China
| | - Peipei Qu
- Ocean College, Zhejiang University, Zhoushan 316021, China
| | - Dongmei Li
- Ocean College, Zhejiang University, Zhoushan 316021, China; Dalian Phycotoxins Key Laboratory, National Marine Environmental Monitoring Center, Ministry of Ecological Environment, Dalian 116023, China
| | - Han Gao
- Ocean College, Zhejiang University, Zhoushan 316021, China
| | - Yubo Liang
- Dalian Phycotoxins Key Laboratory, National Marine Environmental Monitoring Center, Ministry of Ecological Environment, Dalian 116023, China
| | - Zhiguo He
- Ocean College, Zhejiang University, Zhoushan 316021, China; Hainan Institute of Zhejiang University, Sanya 572025, China
| | - Mengmeng Tong
- Ocean College, Zhejiang University, Zhoushan 316021, China; Hainan Institute of Zhejiang University, Sanya 572025, China.
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Kim M, Hong S, Lim YK, Cha J, Kim Y, Lee CE, Yoon JN, Lee HS, Baek SH. Monthly distribution of lipophilic marine biotoxins and associated microalgae in the South Sea Coast of Korea throughout 2021. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 898:165472. [PMID: 37442466 DOI: 10.1016/j.scitotenv.2023.165472] [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: 05/07/2023] [Revised: 06/26/2023] [Accepted: 07/09/2023] [Indexed: 07/15/2023]
Abstract
Aquaculture farms have been established along the South Sea Coast of Korea, supplying most of the seafood consumed domestically. However, annual harmful algal blooms pose a potential threat to seafood safety. This study aimed to determine the spatial and seasonal distributions of 12 lipophilic marine biotoxins (LMTs) in phytoplankton and mussels in the region in 2021. Solid-phase adsorption toxin tracking (SPATT) was used to monitor the cumulative compositions of LMTs in seawater. LMT concentrations were also determined in twelve commercially available species of domestic shellfish to evaluate the potential risks to human health. Gonyaulux spinifera and Dinophysis acuminata, causative microalgae of yessotoxins (YTXs) and pectenotoxins (PTXs), respectively, showed high densities in the region from May to July. This period corresponded to high LMT concentrations in phytoplankton and mussels. Phytoplankton mainly contained PTX-2 and homo-YTX, with a maximum concentration of 2300 ng g-1 wet weight (ww) in May. In contrast, mussels mainly contained homo-YTX and YTX, with a maximum concentration of 1300 ng g-1 ww in July. LMTs-producing microalgae showed low densities and concentrations after July, whereas mussels accumulated toxins until September. In the SPATT sampler, more diverse LMTs were detected than in seawater, phytoplankton, and mussels. For example, dinophysistoxin-1 and azaspiracid-2 were detected only in SPATT. YTXs were detected in domestic seafood samples, including mussels, red scallops, and pen shells, but the concentrations were below the European Food Safety Agency recommended standard of 3.75 mg YTX-eq. kg-1. Moreover, the hazard quotient was less than 100 in all scenarios, indicating that the human health risk was not significant. This study provides valuable data on monthly distribution patterns of LMTs in the South Sea Coast of Korea and can serve as baseline data for future management policies of marine biotoxins.
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Affiliation(s)
- Mungi Kim
- Department of Marine Environmental Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Seongjin Hong
- Department of Marine Environmental Science, Chungnam National University, Daejeon 34134, Republic of Korea.
| | - Young Kyun Lim
- Risk Assessment Research Center, Korea Institute of Ocean Science and Technology, Geoje 53201, Republic of Korea
| | - Jihyun Cha
- Department of Marine Environmental Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Youngnam Kim
- Department of Marine Environmental Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Chang-Eon Lee
- Department of Marine Environmental Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Ji Nam Yoon
- Risk Assessment Research Center, Korea Institute of Ocean Science and Technology, Geoje 53201, Republic of Korea
| | - Hee-Seok Lee
- Department of Food Science and Technology, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Seung Ho Baek
- Risk Assessment Research Center, Korea Institute of Ocean Science and Technology, Geoje 53201, Republic of Korea.
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8
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Han L, Qiu J, Li A, Li D, Yang Y, Wang G, Li P. Effects of marine phycotoxin dinophysistoxin-1 on the growth and cell cycle of Isochrysis galbana. Comp Biochem Physiol C Toxicol Pharmacol 2023; 273:109732. [PMID: 37611885 DOI: 10.1016/j.cbpc.2023.109732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/01/2023] [Accepted: 08/20/2023] [Indexed: 08/25/2023]
Abstract
The phycotoxin dinophysistoxins are widely distributed in the global marine environments and potentially threaten marine organisms and human health. The mechanism of the dinophysistoxin toxicity in inhibiting the growth of microalgae is less well understood. In this study, effects of the dissolved dinophysistoxin-1 (DTX1) on the growth, pigment contents, PSII photosynthetic efficiency, oxidative stress response and cell cycle of the marine microalga Isochrysis galbana were investigated. Growth of I. galbana was significantly inhibited by DTX1 with 0.6-1.5 μmol L-1 in a 96-h batch culture, corresponding the 96 h-EC50 of DTX1 at 0.835 μmol L-1. The maximum quantum yield of PSII (Fv/Fm), and light utilization efficiency (α) were obviously reduced by DTX1 at 1.5 μmol L-1 during 96-h exposure. Contents of most of pigments were generally reduced by DTX1 with a dose-depend pattern in microalgal cells except for diatoxanthin. The ROS levels were increased by DTX1 with 0.6-1.5 μmol L-1 after 72-h exposure, while the contents or activities of MDA, GSH, SOD and CAT were significantly increased by DTX1 at 1.5 μmol L-1 at 96 h. The inhibitory effect of DTX1 on the growth of I. galbana was mainly caused by the production of ROS in the cells. Cell cycle analysis showed that the I. galbana cell cycle was arrested by DTX1 at G2/M phase. This study enhances the understanding of the chemical ecology effects of DTX1 on marine microalgae and also provides fundamental data for deriving water quality criteria of DSTs for marine organisms.
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Affiliation(s)
- Lilin Han
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Jiangbing Qiu
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China; Key Laboratory of Marine Environment and Ecology, Ocean University of China, Ministry of Education, Qingdao 266100, China
| | - Aifeng Li
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China; Key Laboratory of Marine Environment and Ecology, Ocean University of China, Ministry of Education, Qingdao 266100, China.
| | - Dongyue Li
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Yongmeng Yang
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Guixiang Wang
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Peiyao Li
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
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9
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Sheng C, He X, Shen N, Han T, Chen J, Liu C, Li X. Occurrence and phase distribution of lipophilic marine algal toxins in the bottom boundary layer and sediment-porewater system of two mariculture sites. CHEMOSPHERE 2023; 341:140109. [PMID: 37689146 DOI: 10.1016/j.chemosphere.2023.140109] [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: 06/06/2023] [Revised: 09/03/2023] [Accepted: 09/06/2023] [Indexed: 09/11/2023]
Abstract
To date, understanding the fate of lipophilic marine algal toxins (LMATs) in benthic environments on which cultivated shellfish depend is still limited. In this work, the occurrence, concentration levels, and phase distributions of LMATs in the benthic environments of two mariculture sites (Sishili and Rongcheng Bays) in China were investigated for the first time. Five LMATs: okadaic acid (OA), pectenotoxin-2 (PTX2), gymnodimine, 13-desmethyl spirolide C, and azaspiracid-2 (AZA2) and three derivatives: dinophysistoxin-1 isomer (DTX1-iso), pectenotoxin-2 seco acid, and 7-epi- pectenotoxin-2 seco acid were detected in different environmental samples. OA and PTX2 were the dominant LMATs in the bottom boundary layer (BBL) and sediment, whereas AZA2 was present in the sediment only. Notably, DTX1-iso was found for the first time to be widely distributed in the benthic environments of the bays. In BBL, the average proportion of LMATs in the dissolved phase (99.20%) was much higher than in the particulate phase (0.80%). Partition of LMATs was more balanced between sediment porewater (57.80% average proportion) and sediment (42.20%). The concentrations of ∑LMATs in the BBL seawater ranged from 19.09 ng/L to 41.57 ng/L (mean of 32.67 ng/L), and the spatial distribution trend was higher in offshore than nearshore. ∑LMATs concentrations in the sediment and porewater of the two bays ranged from 17.04 ng/kg to 150.13 ng/kg (mean of 53.58 ng/kg) and from 8.29 ng/L to 120.58 ng/L (mean of 46.63 ng/L), respectively. Their spatial distributions differed from those in BBL, showing a trend of high concentrations in areas with heavy land-based inputs. ∑LMATs concentrations in porewater were significantly higher than those in BBL seawaters, suggesting that the potential hazards of LMATs to benthic organisms may be underestimated.
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Affiliation(s)
- Cancan Sheng
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Xiuping He
- Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China; Qingdao Key Laboratory of Analytical Technology Development and Offshore Eco-Environment Conservation, Qingdao, 266061, China
| | - Nan Shen
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Tongzhu Han
- Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China; Qingdao Key Laboratory of Analytical Technology Development and Offshore Eco-Environment Conservation, Qingdao, 266061, China
| | - Junhui Chen
- Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China; Qingdao Key Laboratory of Analytical Technology Development and Offshore Eco-Environment Conservation, Qingdao, 266061, China.
| | - Chenguang Liu
- Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Xianguo Li
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China
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10
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Flores-Holguín N, Salas-Leiva JS, Núñez-Vázquez EJ, Tovar-Ramírez D, Glossman-Mitnik D. Exploring marine toxins: comparative analysis of chemical reactivity properties and potential for drug discovery. Front Chem 2023; 11:1286804. [PMID: 38025068 PMCID: PMC10646282 DOI: 10.3389/fchem.2023.1286804] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023] Open
Abstract
Marine toxins, produced by various marine microorganisms, pose significant risks to both marine ecosystems and human health. Understanding their diverse structures and properties is crucial for effective mitigation and exploration of their potential as therapeutic agents. This study presents a comparative analysis of two hydrophilic and two lipophilic marine toxins, examining their reactivity properties and bioavailability scores. By investigating similarities among these structurally diverse toxins, valuable insights into their potential as precursors for novel drug development can be gained. The exploration of lipophilic and hydrophilic properties in drug design is essential due to their distinct implications on drug distribution, elimination, and target interaction. By elucidating shared molecular properties among toxins, this research aims to identify patterns and trends that may guide future drug discovery efforts and contribute to the field of molecular toxinology. The findings from this study have the potential to expand knowledge on toxins, facilitate a deeper understanding of their bioactivities, and unlock new therapeutic possibilities to address unmet biomedical needs. The results showcased similarities among the studied systems, while also highlighting the exceptional attributes of Domoic Acid (DA) in terms of its interaction capabilities and stability.
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Affiliation(s)
| | | | | | - Dariel Tovar-Ramírez
- Centro de Investigaciones Biológicas del Noroeste, La Paz, Baja California Sur, Mexico
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11
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Chen J, Yang J, He X, Wang J, Pan L, Xin M, Chen F, Liang S, Wang B. Prevalence of the neurotoxin domoic acid in the aquatic environments of the Bohai and Northern Yellow seas in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 876:162732. [PMID: 36906020 DOI: 10.1016/j.scitotenv.2023.162732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 02/28/2023] [Accepted: 03/05/2023] [Indexed: 06/18/2023]
Abstract
Domoic acid (DA), a natural marine phytotoxin produced by toxigenic algae, is harmful to fishery organisms and the health of seafood consumers. In this study, we performed a whole-sea area investigation of DA in seawater, suspended particulate matter (SPM), and phytoplankton of the Bohai and Northern Yellow seas to clarify the occurrence, phase partitioning, spatial distribution, potential sources, and environmental influencing factors of DA in the aquatic environment. DA in different environmental media was identified using liquid chromatography-high resolution mass spectrometry and liquid chromatography-tandem mass spectrometry. DA was found to be predominantly in a dissolved phase (99.84 %) in seawater with only 0.16 % in SPM. Dissolved DA (dDA) was widely detected in nearshore and offshore areas of the Bohai Sea, Northern Yellow Sea, and Laizhou Bay with concentrations ranging from < limits of detection (LOD) to 25.21 ng/L (mean: 7.74 ng/L), < LOD to 34.90 ng/L (mean: 16.91 ng/L), and 1.74 ng/L to 38.20 ng/L (mean: 21.28 ng/L), respectively. dDA levels were relatively lower in the northern part than in the southern part of the study area. In particular, the dDA levels in the nearshore areas of Laizhou Bay were significantly higher than in other sea areas. This may be due to seawater temperature and nutrient levels exerting a crucial impact on the distribution of DA-producing marine algae in Laizhou Bay during early spring. Pseudo-nitzschia pungens may be the main source of DA in the study areas. Overall, DA was prevalent in the Bohai and Northern Yellow seas, especially in the nearshore aquaculture zone. Routine monitoring of DA in the mariculture zones of the northern seas and bays of China should be performed to warn shellfish farmers and prevent contamination.
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Affiliation(s)
- Junhui Chen
- Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China; Qingdao Key Laboratory of Analytical Technology Development and Standardization of Chinese Medicines, Qingdao 266590, China
| | - Jianbo Yang
- Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Xiuping He
- Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China; Qingdao Key Laboratory of Analytical Technology Development and Standardization of Chinese Medicines, Qingdao 266590, China.
| | - Jiuming Wang
- Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Lei Pan
- Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Ming Xin
- Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China; Qingdao Key Laboratory of Analytical Technology Development and Standardization of Chinese Medicines, Qingdao 266590, China
| | - Farong Chen
- Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Shengkang Liang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
| | - Baodong Wang
- Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China; Qingdao Key Laboratory of Analytical Technology Development and Standardization of Chinese Medicines, Qingdao 266590, China
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12
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Wang J, Li R, Liu B, Zhang Q, Wang X, Zhu Y, Zhang Y. Occurrence and distribution of lipophilic marine algal toxins in the coastal seawater of Southeast China and the South China Sea. MARINE POLLUTION BULLETIN 2023; 187:114584. [PMID: 36642003 DOI: 10.1016/j.marpolbul.2023.114584] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 12/23/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
The composition, levels, and spatial distribution of dissolved lipophilic marine algal toxins (LMATs) including cyclic imines (CIs), yessotoxins (YTXs), okadaic acid (OA) and its derivatives, pectenotoxins (PTXs), azaspiracids (AZAs), and brevetoxins (BTXs) in the coastal waters of Southeast China (Xiamen) and the South China Sea (Hainan Island and Beibu Gulf) were investigated and compared for the first time. Dissolved AZA3 was firstly detected in the coastal seawater of China. OA and PTX2 were widely distributed in the three areas studied. Gymnodimine (GYM), 13-desmethyl spirolide C (SPX1), YTX, and homo-yessotoxins (h-YTX) were found mainly in the South China Sea. The average ∑LMAT concentrations in the coastal waters of Xiamen, Hainan Island, and Beibu Gulf were 10.02 ng/L, 4.21 ng/L, and 44.27 ng/L, respectively. More groups and much higher concentrations of LMATs occurred in the South China Sea than that in the other sea areas of China.
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Affiliation(s)
- Jiuming Wang
- State Key Laboratory of Marine Environmental Science of China (Xiamen University), College of the Environment and Ecology, Xiamen University, Xiamen 361102, China
| | - Ruilong Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Beibei Liu
- Institute of Environmental and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 570100, China
| | - Qinzhou Zhang
- State Key Laboratory of Marine Environmental Science of China (Xiamen University), College of the Environment and Ecology, Xiamen University, Xiamen 361102, China
| | - Xiang Wang
- State Key Laboratory of Marine Environmental Science of China (Xiamen University), College of the Environment and Ecology, Xiamen University, Xiamen 361102, China
| | - Yaxian Zhu
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yong Zhang
- State Key Laboratory of Marine Environmental Science of China (Xiamen University), College of the Environment and Ecology, Xiamen University, Xiamen 361102, China.
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13
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Aboualaalaa H, El Kbiach ML, Rijal Leblad B, Hervé F, Hormat-Allah A, Baudy L, Ennaskhi I, Hammi I, Ibghi M, Elmortaji H, Abadie E, Rolland JL, Amzil Z, Laabir M. Development of harmful algal blooms species responsible for lipophilic and amnesic shellfish poisoning intoxications in southwestern Mediterranean coastal waters. Toxicon 2022; 219:106916. [PMID: 36115413 DOI: 10.1016/j.toxicon.2022.09.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 06/30/2022] [Accepted: 09/03/2022] [Indexed: 11/16/2022]
Abstract
Mediterranean waters have undergone environmental changes during the last decades leading to various modifications of the structure of phytoplankton populations, especially Harmful Algal Blooms (HABs) species. Monitoring of the potentially toxic phytoplankton species was carried out biweekly in the western Mediterranean coast of Morocco from March 2018 to March 2019. Lipophilic Shellfish Toxins (LSTs) using LC-MS/MS and Domoic Acid (DA) using HPLC-UV were measured in the exploited mollusks, the cockle Acanthocardia tuberculata and the smooth clam Callista chione. We also determined the prevailing environmental factors in four surveyed sites (M'diq bay, Martil, Kaa Asras, and Djawn) selected to cover a variety of coastal ecosystems. Results showed that Pseudo-nitzschia spp. a DA producer species, was abundant with a pick of 50 × 103 cells l-1 on October 2018 in Djawn. Dinophysis caudata was the dominate Dinophysis species and showed a maximum density of 2200 cells l-1 on July in Djawn. Prorocentrum lima, an epibenthic dinoflagellate, appeared rarely in the water column with densities <80 cells l-1. Gonyaulax spinifera and Protoceratium reticulatum were found occasionally with a maximum density of 160 cells l-1. Karenia selliformis was detected only five times (<80 cells l-1) throughout the survey period. LC-MS/MS analyses revealed the presence of OA/DTX3, PTX-2, PTX-2 sa, and PTX-2 sa epi in the cockle at concentrations of up to 44.81 (OA/DTX-3+PTXs) ng g-1 meat. GYM-A was detected in the clam at concentrations of up to 4.22 ng g-1 meat. For the first time, AZAs and YTXs were detected in the southwestern Mediterranean with maximum values of 2.49 and 10.93 ng g-1 meat of cockle, respectively. DA was detected in moderate concentrations not exceeding 5.65 μg g-1 in both mollusks. Results showed that the observed toxic algae in the water column were responsible from the analysed toxins in the mollusks. It is likely that the southwestern Mediterranean waters could see the development of emergent species producing potent toxins (YTXs, AZAs, GYM-A). These dinoflagellates have to be isolated, ribotyped, and their toxin profiles determined.
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Affiliation(s)
- Hicham Aboualaalaa
- Equipe de Biotechnologie Végétale, Faculty of Sciences, Abdelmalek Essaadi University Tetouan, Morocco; INRH (Moroccan Institute of Fisheries Research), Marine Environment Monitoring Laboratory, Tangier, Morocco; Université Montpellier, MARBEC CNRS, IRD, Ifremer, Montpellier, France
| | | | - Benlahcen Rijal Leblad
- INRH (Moroccan Institute of Fisheries Research), Marine Environment Monitoring Laboratory, Tangier, Morocco.
| | - Fabienne Hervé
- Ifremer (French Research Institute for Exploitation of the Sea), PHYTOX, METALG Laboratory, Nantes, France
| | - Amal Hormat-Allah
- INRH (Moroccan Institute of Fisheries Research), Marine Environment Monitoring Laboratory, Tangier, Morocco
| | - Lauriane Baudy
- Ifremer (French Research Institute for Exploitation of the Sea), PHYTOX, METALG Laboratory, Nantes, France
| | - Ismail Ennaskhi
- INRH (Moroccan Institute of Fisheries Research), Marine Environment Monitoring Laboratory, Tangier, Morocco
| | - Ikram Hammi
- INRH (Moroccan Institute of Fisheries Research), Marine Environment Monitoring Laboratory, Tangier, Morocco
| | - Mustapha Ibghi
- Equipe de Biotechnologie Végétale, Faculty of Sciences, Abdelmalek Essaadi University Tetouan, Morocco; INRH (Moroccan Institute of Fisheries Research), Marine Environment Monitoring Laboratory, Tangier, Morocco; Université Montpellier, MARBEC CNRS, IRD, Ifremer, Montpellier, France
| | - Hind Elmortaji
- INRH (Moroccan Institute of Fisheries Research), Marine Biotoxins Laboratory, Casablanca, Morocco
| | - Eric Abadie
- MARBEC, Université Montpellier, CNRS, Ifremer, IRD, Sète, France
| | - Jean Luc Rolland
- MARBEC, Université Montpellier, CNRS, Ifremer, IRD, Sète, France
| | - Zouher Amzil
- Ifremer (French Research Institute for Exploitation of the Sea), PHYTOX, METALG Laboratory, Nantes, France
| | - Mohamed Laabir
- Université Montpellier, MARBEC CNRS, IRD, Ifremer, Montpellier, France
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14
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Core-shell structured magnetic covalent-organic frameworks for rapid extraction and preconcentration of okadaic acid in seawater and shellfish followed with LC-MS/MS quantification. Food Chem 2022; 374:131778. [PMID: 35021580 DOI: 10.1016/j.foodchem.2021.131778] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 11/07/2021] [Accepted: 12/02/2021] [Indexed: 11/21/2022]
Abstract
Core-shell structured magnetic covalent-organic frameworks (Fe3O4@TaTp) were facilely synthesized based on one-step functionalization at room temperature and applied for magnetic solid-phase extraction of okadaic acid from seawater and shellfish prior to LC-MS/MS detection. Parameters, including adsorbent amount, extraction time, desorption solution, and desorption time which could affect the extraction efficiency, were respectively investigated. The developed methods demonstrated good linearity (R2 > 0.99), acceptable accuracy and good precision (<15%), and low limit of detection (0.5 pg·mL-1 for seawater and 0.04 µg·kg-1 for shellfish). The amount of the material used (1 mg for seawater and 5 mg for shellfish) and the time required (4 min for seawater and 15 min for shellfish) for extracting analyte from 5 mL of seawater and 2 g of shellfish are both greatly shortened compared with the previous reports. In addition, we successfully applied this method to real sample analysis.
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15
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Liang Y, Li A, Chen J, Tan Z, Tong M, Liu Z, Qiu J, Yu R. Progress on the investigation and monitoring of marine phycotoxins in China. HARMFUL ALGAE 2022; 111:102152. [PMID: 35016765 DOI: 10.1016/j.hal.2021.102152] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 11/20/2021] [Accepted: 11/27/2021] [Indexed: 06/14/2023]
Abstract
Marine phycotoxins associated with paralytic shellfish poisoning (PSP), diarrhetic shellfish poisoning (DSP), amnesic shellfish poisoning (ASP), neurotoxic shellfish poisoning (NSP), ciguatera fish poisoning (CFP), tetrodotoxin (TTX), palytoxin (PLTX) and neurotoxin β-N-methylamino-L-alanine (BMAA) have been investigated and routinely monitored along the coast of China. The mouse bioassay for monitoring of marine toxins has been progressively replaced by the enzyme-linked immunosorbent assay (ELISA) and liquid chromatography tandem mass spectrometry (LC-MS/MS), which led to the discovery of many new hydrophilic and lipophilic marine toxins. PSP toxins have been detected in the whole of coastal waters of China, where they are the most serious marine toxins. PSP events in the Northern Yellow Sea, the Bohai Sea and the East China Sea are a cause of severe public health concern. Okadaic acid (OA) and dinophysistoxin-1 (DTX1), which are major toxin components associated with DSP, were mainly found in coastal waters of Zhejiang and Fujian provinces, and other lipophilic toxins, such as pectenotoxins, yessotoxins, azaspiracids, cyclic imines, and dinophysistoxin-2(DTX2) were detected in bivalves, seawater, sediment, as well as phytoplankton. CFP events mainly occurred in the South China Sea, while TTX events mainly occurred in Jiangsu, Zhejiang and Fujian provinces. Microalgae that produce PLTX and BMAA were found in the phytoplankton community along the coastal waters of China.
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Key Words
- AZAs, azaspiracids
- Abbreviations: ASP, amnesic shellfish poisoning
- Animal seafood
- BMAA, β-N-methylamino-L-alanine
- CFP, ciguatera fish poisoning
- CIs, cyclic imines
- CTXs, ciguatoxins
- Coastal waters of China
- DA, domoic acid
- DSP, diarrhetic shellfish poisoning
- DTX1, dinophysistoxin-1
- DTX2, dinophysistoxin-2
- DTXs, dinophysistoxins
- ELISA, enzyme-linked immunosorbent assay
- FJ, Fujian
- GD, Guangdong
- GX, Guangxi
- GYM, gymnodimine
- HB, Hebei
- HN, Hainan
- HPLC-FLD, high-performance liquid chromatography with fluorescence detection
- JS, Jiangsu
- LC-MS/MS, liquid chromatography tandem mass spectrometry
- LMTs, lipophilic marine toxins
- LN, Liaoning
- LOD, limit of detection
- LOQ, limit of quantitation
- MBA, mouse bioassay
- Marine phycotoxins
- NSP, neurotoxic shellfish poisoning
- OA, okadaic acid
- PLTXs, palytoxins
- PSP, paralytic shellfish poisoning
- PTX2, pectenotoxin-2
- PbTXs, brevetoxins
- SD, Shandong
- SPATT, solid phase adsorbent toxin tracking
- SPE, solid phase extraction
- SPX1, 13-desmethyl spirolide C
- STXs, saxitoxins
- TTXs, tetrodotoxins
- Toxin analysis
- YTXs, yessotoxins
- ZJ, Zhejiang
- hYTX, 1-homoyessotoxin
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Affiliation(s)
- Yubo Liang
- Dalian Phycotoxins Key laboratory, National Marine Environmental Monitoring Center, Ministry of Ecological Environment, Dalian 116023, China.
| | - Aifeng Li
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Junhui Chen
- Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Zhijun Tan
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Mengmeng Tong
- Ocean College, Zhejiang University, Zhoushan 316000, China
| | - Zhao Liu
- Dalian Phycotoxins Key laboratory, National Marine Environmental Monitoring Center, Ministry of Ecological Environment, Dalian 116023, China
| | - Jiangbing Qiu
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Rencheng Yu
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
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16
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Liu K, Zhang Z, Wu H, Wang J, Wang R, Zhang T, Feng Z, Li D. Accumulation of microplastics in a downstream area of a semi-enclosed bay: Implications of input from coastal currents. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 791:148280. [PMID: 34119789 DOI: 10.1016/j.scitotenv.2021.148280] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 06/01/2021] [Accepted: 06/02/2021] [Indexed: 06/12/2023]
Abstract
Coastal beaches are a vital transitional zone in which terrestrial microplastics (MPs) enter the oceans. However, little is known about the impact of coastal currents on the dispersion and accumulation of MPs, especially in semi-enclosed bays. To address this knowledge gap, we investigated the spatiotemporal variation of MPs in the coastal sediments of Haizhou Bay. The abundance of MPs ranged from 10.94 n/kg to 1309.02 n/kg. Overall, a higher amount of MPs was found in intertidal sediment than in the supratidal zone. Significant seasonal variation was observed only in the intertidal areas of Haizhou Bay, suggesting that hydrodynamics plays a critical role shaping MP abundance. Statistical analyses revealed a roughly exponential increase of MP abundance with distance from the coast, and that a relatively higher abundance of MPs would be found at offshore sites in downstream areas. These results suggest that coastal currents are important contributors of MPs. A numerical model of vertical profiles estimated the total inventory of MPs in coastal areas to be 13.83-580 trillion pieces. Our results suggest a neglected sink of MPs in the sedimentary environments of coastal regions. As a result, the amount of MPs in coastal regions in previous studies could have been underestimated.
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Affiliation(s)
- Kai Liu
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China; Plastic Marine Debris Research Center, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China; Regional Training and Research Center on Plastic Marine Debris and Microplastics, IOC-UNESCO, 500 Dongchuan Road, Shanghai 200241, China
| | - Zhiwei Zhang
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Hui Wu
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Jiaxuan Wang
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, China
| | - Rui Wang
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, China
| | - Tao Zhang
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, China
| | - Zhihua Feng
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, China; Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, China; Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, China.
| | - Daoji Li
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China; Plastic Marine Debris Research Center, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China; Regional Training and Research Center on Plastic Marine Debris and Microplastics, IOC-UNESCO, 500 Dongchuan Road, Shanghai 200241, China.
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Zhang ZM, Wang LY, Gu YY, Sun AL, You JJ, Shi XZ, Chen J. Probing the contamination characteristics, mobility, and risk assessments of typical plastic additive-phthalate esters from a typical coastal aquaculture area, China. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125931. [PMID: 34492861 DOI: 10.1016/j.jhazmat.2021.125931] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 04/15/2021] [Accepted: 04/18/2021] [Indexed: 06/13/2023]
Abstract
Contamination characteristics, equilibrium partitioning and risk assessment of phthalate esters (PAEs) were investigated in seawater, sediment and biological samples collected from the Xiangshan Bay area during an annual investigation between January and November 2019. PAE concentrations detected in the mariculture environment in surface seawater, sediment, and biological samples were 172-3365 ng/L, 190-2430 μg/kg (dry weight [dw]), and 820-4926 μg/kg (dw), respectively. The dominant congeners in different media included di-n-butyl phthalate (DnBP), diisobutyl phthalate (DiBP), and di(2-ethylhexyl) phthalate (DEHP). The inner bay and the bay mouth were the gathering area of PAEs and heavily influenced by the mariculture activities, river inputs, and anthropogenic activities. The bioaccumulation of PAEs demonstrated benthic feeding fishes with relatively high trophic levels concentrated high levels of phthalates. The mobility of PAEs in sediment-seawater showed that the transfer tendency of low-molecular weight species was from the sediment to the water, which was in contrast with those of high-molecular weight PAEs. DEHP, DiBP and DnBP had various degrees of ecological risks in the aquatic environment, whereas only the DiBP posed potential risks in sediments. The current assessment of carcinogenic and noncarcinogenic risks posed by fish consumption were within acceptable limits for humans.
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Affiliation(s)
- Ze-Ming Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo 315211, PR China; School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
| | - Liu-Yong Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo 315211, PR China; College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, PR China
| | - Yan-Yu Gu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo 315211, PR China; College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, PR China
| | - Ai-Li Sun
- School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
| | - Jin-Jie You
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo 315211, PR China; College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, PR China
| | - Xi-Zhi Shi
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo 315211, PR China; School of Marine Sciences, Ningbo University, Ningbo 315211, PR China.
| | - Jiong Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo 315211, PR China; School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
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18
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Wang J, Chen J, He X, Hao S, Wang Y, Zheng X, Wang B. Simple determination of six groups of lipophilic marine algal toxins in seawater by automated on-line solid phase extraction coupled to liquid chromatography-tandem mass spectrometry. CHEMOSPHERE 2021; 262:128374. [PMID: 33182088 DOI: 10.1016/j.chemosphere.2020.128374] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/13/2020] [Accepted: 09/15/2020] [Indexed: 05/26/2023]
Abstract
Lipophilic marine algal toxins (LMATs) are highly toxic secondary metabolites produced by marine microalgae that pose a great threat to marine aquaculture organisms and human health. In this study, a novel and automated method for the simultaneous determination of six groups of LMATs in seawater was developed by on-line solid phase extraction (SPE) coupled with liquid chromatography-tandem mass spectrometry (LC-MS/MS). Condition optimization and method validation were performed, and the recoveries of all 14 target LMATs featuring different properties ranged from 83.5% to 96.0%. The limits of detection of most target compounds were within ≤3.000 ng/L with good precision (relative standard deviation ≤ 12.1%) and linearity (R2≥0.9916). Compared with off-line SPE methods, the proposed on-line SPE method has better recovery, sensitivity, repeatability, and throughput; in addition, the volume of seawater sample necessary to conduct determinations is greatly reduced in the present method. Finally, the method was applied to determine LMATs in actual seawater samples collected from the Bohai and South Yellow Seas of China in summer, and okadaic acid and pectenotoxin-2 were detected in all seawater samples. The highest concentration of ∑LMATs (22.23 ng/L) occurred in the coastal mariculture area of Shandong Province. Therefore, routine monitoring of LMATs in seawater of the coastal mariculture zone is necessary to prevent shellfish contamination especially in summer, and the proposed on-line SPE-LC-MS/MS method is a powerful way for direct and automatic detection of various LMATs in coastal mariculture area.
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Affiliation(s)
- Jiuming Wang
- Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Junhui Chen
- Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China; Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266071, China; Shandong University of Science and Technology, Qingdao, 266590, China.
| | - Xiuping He
- Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China; Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266071, China; Shandong University of Science and Technology, Qingdao, 266590, China
| | - Shuang Hao
- Marine College, Shandong University, Weihai, 264200, China
| | - Yuning Wang
- Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Xiaoling Zheng
- Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Baodong Wang
- Marine Bioresource and Environment Research Center, Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China; Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266071, China
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Wu D, Chen J, Wang J, He X, Xin M, Wang B. Monitoring and warning of lipophilic marine algal toxins in mariculture zone based on toxin profiles of phytoplankton. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 197:110647. [PMID: 32315787 DOI: 10.1016/j.ecoenv.2020.110647] [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: 02/09/2020] [Revised: 04/01/2020] [Accepted: 04/14/2020] [Indexed: 06/11/2023]
Abstract
Some toxigenic dinoflagellates can produce lipophilic marine algal toxins (LMATs), which are potent threats to marine breeding industries. In this study, a new method based on the profiling analysis of six LMAT classes in phytoplankton was developed for the monitoring and warning of LMATs in mariculture zones. This method was applied to monitor and evaluate LMATs in the Jiaozhou Bay and the Changjiang estuary in China. Results demonstrated that the occurrence and spatiotemporal variations of LMATs in mariculture zones can be revealed by the toxin profiles of phytoplankton, indicating the method's effectiveness for the comprehensive monitoring of the composition and levels of various LMATs in coastal aquaculture zones. The method was further used as an alarm for potential pollution risk from LMATs in mariculture zones at an early stage. The "alert" thresholds of LMAT pollution in the mariculture zones were preliminarily proposed based on the statistical data analysis of LMATs in phytoplankton in three typical mariculture areas in China. This study is the first to conduct simultaneous monitoring and warning of multi-class LMATs based on toxin profiles of phytoplankton, thereby providing new insight into the monitoring and early warning of natural poisonous pollutants in coastal aquaculture zones around the world.
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Affiliation(s)
- Danni Wu
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Junhui Chen
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China; Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266071, China.
| | - Jiuming Wang
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Xiuping He
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China; Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266071, China
| | - Ming Xin
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China; Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266071, China
| | - Baodong Wang
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China; Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266071, China
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20
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Oyaneder-Terrazas J, Polanco C, Figueroa D, Barriga A, García C. In vitro biotransformation of OA-group and PTX-group toxins in visceral and non-visceral tissues of Mytilus chilensis and Ameghinomya antiqua. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2020; 37:1216-1228. [PMID: 32515303 DOI: 10.1080/19440049.2020.1750710] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Lipophilic marine toxins (LMTs) are made up of multiple groups of toxic analogues, which are characterised by different levels of cellular and toxic action. The most prevalent groups in the southern Pacific zone are: a) okadaic acid group (OA-group) which consists of okadaic acid (OA) and dinophysistoxin-1 (DTX-1); and, b) pectenotoxin-2 (PTX2) group which consists of pectenotoxin-2 (PTX-2). The main objective of our study was to examine in vitro biotransformation of OA-group and PTX-group in the tissues of two endemic species of bivalves from southern Chile; blue mussels (Mytilus chilensis) and clams (Ameghinomya antiqua). The biotransformation processes of both groups were only detected in the digestive glands of both species using LC-MS/MS. The most frequently detected analogues were acyl derivatives (≈2.0 ± 0.1 μg ml-1) for OA-group and PTX-2SA (≈1.4 ± 0.1 μg ml-1) for PTX-group, with a higher percentage of biotransformation for OA-group (p < .001). In addition, simultaneous incubations of the different analogues (OA/PTX-2; DTX-1/PTX-2 and OA/DTX-1/PTX-2) did not show any interaction between the biotransformation processes. These results show that the toxicological variability of endemic species leads to biotransformation of the profile of toxins, so that these new analogues may affect people's health.
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Affiliation(s)
- Javiera Oyaneder-Terrazas
- Laboratory of Marine Toxins, Physiology and Biophysics Programme, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile , Santiago, Chile.,Faculty of Technology, Universidad de Santiago , Santiago, Chile
| | - Cassandra Polanco
- Laboratory of Marine Toxins, Physiology and Biophysics Programme, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile , Santiago, Chile.,Faculty of Technology, Universidad de Santiago , Santiago, Chile
| | - Diego Figueroa
- Laboratory of Marine Toxins, Physiology and Biophysics Programme, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile , Santiago, Chile
| | - Andres Barriga
- CEPEDEQ, Faculty of Chemical and Pharmaceutical Sciences, Universidad de Chile , Santiago, Chile
| | - Carlos García
- Laboratory of Marine Toxins, Physiology and Biophysics Programme, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile , Santiago, Chile
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Cyclic Imines (CIs) in Mussels from North-Central Adriatic Sea: First Evidence of Gymnodimine A in Italy. Toxins (Basel) 2020; 12:toxins12060370. [PMID: 32512714 PMCID: PMC7354633 DOI: 10.3390/toxins12060370] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 05/25/2020] [Accepted: 05/28/2020] [Indexed: 01/12/2023] Open
Abstract
Cyclic imines (CIs) are emerging marine lipophilic toxins (MLTs) occurring in microalgae and shellfish worldwide. The present research aimed to study CIs in mussels farmed in the Adriatic Sea (Italy) during the period 2014–2015. Twenty-eight different compounds belonging to spirolides (SPXs), gymnodimines (GYMs), pinnatoxins (PnTXs) and pteriatoxins (PtTXs) were analyzed by the official method for MLTs in 139 mussel samples collected along the Marche coast. Compounds including 13-desmethyl spirolide C (13-desMe SPX C) and 13,19-didesmethyl spirolide C (13,19-didesMe SPX C) were detected in 86% of the samples. The highest levels were generally reported in the first half of the year reaching 29.2 µg kg−1 in January/March with a decreasing trend until June. GYM A, for the first time reported in Italian mussels, was found in 84% of the samples, reaching the highest concentration in summer (12.1 µg kg−1). GYM A and SPXs, submitted to tissue distribution studies, showed the tendency to accumulate mostly in mussel digestive glands. Even if SPX levels in mussels were largely below the European Food Safety Authority (EFSA) reference of 400 μg SPXs kg−1, most of the samples contained CIs for the large part of the year. Since chronic toxicity data are still missing, monitoring is surely recommended.
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Su YT, Cheng YP, Zhang X, Xie XP, Chang YM, Bao JX. Acid sphingomyelinase/ceramide mediates structural remodeling of cerebral artery and small mesenteric artery in simulated weightless rats. Life Sci 2020; 243:117253. [PMID: 31927048 DOI: 10.1016/j.lfs.2019.117253] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/18/2019] [Accepted: 12/27/2019] [Indexed: 12/19/2022]
Abstract
AIMS Weightlessness exposure conduces to substantial vascular remodeling, mechanisms behind which remain unclear. Acid sphingomyelinase (ASM) catalyzed ceramide (Cer) generation accounts for multiple vascular disorders, so the role of it in adjustment of cerebral artery (CA) and small mesenteric artery (MA) was investigated in simulated weightless rats. MAIN METHODS Rats were hindlimb unloaded tail suspended (HU) to simulate the effect of weightlessness. Arterial morphology was examined by hematoxylin-eosin staining. Cer abundance was measured by immunohistochemistry. Western blotting was used to detect protein content. Apoptosis was detected by transferase-mediated dUTP nick end labeling. KEY FINDINGS During 4 weeks of tail suspension, intima-media thickness (IMT) and media cross section area (CSA) were increased gradually in CA but decreased gradually in MA (P < 0.05). Correspondingly, the apoptosis and proliferation of vascular smooth muscle cells were reduced and enhanced respectively in CA (P < 0.05), while promoted and restrained in MA (P < 0.05). As compared to control, both ASM protein expression and Cer content were lowered in CA and elevated in MA of HU rats (P < 0.05). Permeable Cer incubation reversed the change of apoptosis and proliferation in CA of HU rats, while ASM inhibition recapitulated it in control rats. On the contrary, ASM inhibitors restored the alteration of apoptosis and proliferation in MA of HU. SIGNIFICANCE The results suggest that by controlling the balance between apoptosis and proliferation, ASM/Cer exerts an important role in structural adaptation of CA and MA to simulated weightlessness.
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Affiliation(s)
- Yu-Ting Su
- Department of Aerospace Hygiene, Fourth Military Medical University, Xi'an 710032, PR China
| | - Yao-Ping Cheng
- Department of Aerospace Hygiene, Fourth Military Medical University, Xi'an 710032, PR China
| | - Xi Zhang
- Department of Aerospace Hygiene, Fourth Military Medical University, Xi'an 710032, PR China
| | - Xiao-Ping Xie
- Department of Aerospace Hygiene, Fourth Military Medical University, Xi'an 710032, PR China
| | - Yao-Ming Chang
- Department of Aerospace Hygiene, Fourth Military Medical University, Xi'an 710032, PR China.
| | - Jun-Xiang Bao
- Department of Aerospace Hygiene, Fourth Military Medical University, Xi'an 710032, PR China.
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He X, Chen J, Wu D, Wang J, Xin M, Liu L, Sun P, Wang B. Occurrence, distribution, source, and influencing factors of lipophilic marine algal toxins in Laizhou Bay, Bohai Sea, China. MARINE POLLUTION BULLETIN 2020; 150:110789. [PMID: 31910528 DOI: 10.1016/j.marpolbul.2019.110789] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 11/26/2019] [Accepted: 11/27/2019] [Indexed: 06/10/2023]
Abstract
The composition, distribution, origin, and influencing factors of lipophilic marine algal toxins (LMATs) in surface seawater and phytoplankton in Laizhou Bay, China, were comprehensively investigated for the first time. Okadaic acid (OA), pectenotoxin-2 (PTX2), dinophysistoxin-1 (DTX1), dinophysistoxin-2 (DTX2), and pectenotoxin-2 seco acid (PTX2 SA) were discovered in surface seawater, whereas PTX2, OA, 7-epi-PTX-2 SA, DTX1, PTX2 SA, PTX11, and DTX2 were found in phytoplankton in a decreasing concentration order. ∑LMAT concentrations in seawater and phytoplankton were 1.08-35.66 ng/L (mean: 7.31 ng/L) and 0-3609.75 ng/L (mean: 191.38 ng/L), respectively. LMAT contents in seawater and phytoplankton exhibited the highest levels in the southeastern mouth of Laizhou Bay and decreased toward the inner and outer bays. Dinophysis fortii, D. acuminata, D. rotundata, Procentrum lima, and P. minimum were identified as the potential origins of LMATs in Laizhou Bay. Moreover, increased nutrient level and decreased pH in seawater could increase LMAT content.
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Affiliation(s)
- Xiuping He
- Key Laboratory of Science and Engineering for Marine Ecology and Environment, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China
| | - Junhui Chen
- Key Laboratory of Science and Engineering for Marine Ecology and Environment, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China.
| | - Danni Wu
- Key Laboratory of Science and Engineering for Marine Ecology and Environment, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Jiuming Wang
- Key Laboratory of Science and Engineering for Marine Ecology and Environment, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Ming Xin
- Key Laboratory of Science and Engineering for Marine Ecology and Environment, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China
| | - Lijun Liu
- Key Laboratory of Science and Engineering for Marine Ecology and Environment, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Marine College, Shandong University, Weihai 264200, China
| | - Ping Sun
- Key Laboratory of Science and Engineering for Marine Ecology and Environment, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Baodong Wang
- Key Laboratory of Science and Engineering for Marine Ecology and Environment, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China
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