1
|
Paradis C, Chomérat N, Vaucel JA, Antajan E, Labes P, Rappoport M, Labadie M. Impacts on Human Health Potentially Caused by Exposure to an Unprecedented Ostreopsis spp Bloom in the Bay of Biscay, French Basque Coast. Wilderness Environ Med 2024; 35:13-21. [PMID: 38379487 DOI: 10.1177/10806032231220405] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
INTRODUCTION In recent years, climate change and human activity have modified marine biotopes, including the widening distribution of harmful algal blooms (HABs). Bloom events predominated by microalgae of the genus Ostreopsis have been described on the French Mediterranean coast, but in 2021 an unprecedented bloom occurred on the French Basque coast. The objective of this study is to describe the health impact of the Ostreopsis spp bloom that occurred on the French Basque coast in 2021. METHODS A historical cohort was conducted, including cases of possible exposure to Ostreopsis spp registered at the Centre Antipoison de Nouvelle-Aquitaine between July 1 and September 30, 2021. RESULTS Of 674 patients with possible toxicity due to Ostreopsis spp, 96.9% had bathed in contaminated waters. Most of them developed respiratory tract symptoms (64.4% of patients). The time to the onset of symptoms was <6 h for 73.6% of 174 short-term (<24 h) exposed patients. The median duration of symptoms was 7.5 days for occupational (e.g., lifeguards and surfing instructors) and 3 days for recreational exposures. There were no severe cases. In total, 3% of the cases were of moderate severity, and 97% were of minor severity, according to the Poisoning Severity Score. CONCLUSION Toxic reactions caused by Ostreopsis spp are mostly benign. The clinical picture is similar to that described following exposures to Ostreopsis cf. ovata blooms in the Mediterranean area since the end of the 20th century. Ostreopsis spp are present on the Basque coast. The ecological factors promoting its blooms remain to be clarified.
Collapse
Affiliation(s)
- Camille Paradis
- Centre Anti-Poison de Nouvelle-Aquitaine, Bordeaux University Hospital, 33076, Bordeaux, France
| | | | - Jules-Antoine Vaucel
- Centre Anti-Poison de Nouvelle-Aquitaine, Bordeaux University Hospital, 33076, Bordeaux, France
| | | | - Patrice Labes
- Urgences SAMU-SMUR, Centre Hospitalier de la Côte Basque, 64100, Bayonne, France
| | - Marc Rappoport
- Médecine interne, Saint-Palais Hospital - Donapaleuko Ospitalea, 64120, Saint-Palais, France
| | - Magali Labadie
- Centre Anti-Poison de Nouvelle-Aquitaine, Bordeaux University Hospital, 33076, Bordeaux, France
| |
Collapse
|
2
|
Nguyen-Ngoc L, Larsen J, Doan-Nhu H, Nguyen XV, Chomérat N, Lundholm N, Phan-Tan L, Dao HV, Nguyen NL, Nguyen HH, Van Chu T. Gambierdiscus (Gonyaulacales, Dinophyceae) diversity in Vietnamese waters with description of G. vietnamensis sp. nov. J Phycol 2023; 59:496-517. [PMID: 36866508 DOI: 10.1111/jpy.13326] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 01/31/2023] [Accepted: 02/03/2023] [Indexed: 06/15/2023]
Abstract
Viet Nam has a coastline of 3200 km with thousands of islands providing diverse habitats for benthic harmful algal species including species of Gambierdiscus. Some of these species produce ciguatera toxins, which may accumulate in large carnivore fish potentially posing major threats to public health. This study reports five species of Gambierdiscus from Vietnamese waters, notably G. australes, G. caribaeus, G. carpenteri, G. pacificus, and G. vietnamensis sp. nov. All species are identified morphologically by LM and SEM, and identifications are supported by molecular analyses of nuclear rDNA (D1-D3 and D8-D10 domains of LSU, SSU, and ITS1-5.8S-ITS2 region) based on cultured material collected during 2010-2021. Statistical analyses of morphometric measurements may be used to differentiate some species if a sufficiently large number of cells are examined. Gambierdiscus vietnamensis sp. nov. is morphologically similar to other strongly reticulated species, such as G. belizeanus and possibly G. pacificus; the latter species is morphologically indistinguishable from G. vietnamensis sp. nov., but they are genetically distinct, and molecular analysis is deemed necessary for proper identification of the new species. This study also revealed that strains denoted G. pacificus from Hainan Island (China) should be included in G. vietnamensis sp. nov.
Collapse
Affiliation(s)
- Lam Nguyen-Ngoc
- Institute of Oceanography, Vietnam Academy of Science and Technology, Nha Trang, Vietnam
| | - Jacob Larsen
- IOC Science and Communication Centre on Harmful Algae, Marine Biological Section, University of Copenhagen, Copenhagen Ø, Denmark
| | - Hai Doan-Nhu
- Institute of Oceanography, Vietnam Academy of Science and Technology, Nha Trang, Vietnam
| | - Xuan-Vy Nguyen
- Institute of Oceanography, Vietnam Academy of Science and Technology, Nha Trang, Vietnam
| | - Nicolas Chomérat
- Ifremer, LITTORAL, Station of Marine Biology of Concarneau, Concarneau, France
| | - Nina Lundholm
- Natural History Museum of Denmark, University of Copenhagen, Copenhagen K, Denmark
| | - Luom Phan-Tan
- Institute of Oceanography, Vietnam Academy of Science and Technology, Nha Trang, Vietnam
| | - Ha Viet Dao
- Institute of Oceanography, Vietnam Academy of Science and Technology, Nha Trang, Vietnam
| | - Ngoc-Lan Nguyen
- Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Huy-Hoang Nguyen
- Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Thuoc Van Chu
- Institute of Marine Environment and Resources, Vietnam Academy of Science and Technology, Da Nang, Vietnam
| |
Collapse
|
3
|
Arteaga-Sogamoso E, Rodríguez F, Amato A, Ben-Gigirey B, Fraga S, Mafra LL, Fernandes LF, de Azevedo Tibiriçá CEJ, Chomérat N, Nishimura T, Homma C, Adachi M, Mancera-Pineda JE. Morphology and phylogeny of Prorocentrum porosum sp. nov. (Dinophyceae): A new benthic toxic dinoflagellate from the Atlantic and Pacific Oceans. Harmful Algae 2023; 121:102356. [PMID: 36639183 DOI: 10.1016/j.hal.2022.102356] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [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: 06/16/2022] [Revised: 11/04/2022] [Accepted: 11/14/2022] [Indexed: 06/17/2023]
Abstract
A new marine benthic toxic Prorocentrum species is described from the tropical/subtropical regions of the Atlantic (Colombian Caribbean Sea and Northeast Brazil) and Pacific (Southern Japan) oceans. Morphological cell structures were examined using light (LM) and scanning electron (SEM) microscopy. Prorocentrum porosum sp. nov. was characterized by 35.9-50.2 μm long and 25.4-45.7 μm deep cells, covered by broadly ovoid symmetric thecal plates. The surface of both thecal plates is smooth and covered by randomly scattered kidney-shaped pores (n = 102-149), rounder towards the center, absent in the central part, and surrounded by a conspicuous marginal ring of about 69-92 evenly spaced pores. Broad V-shaped periflagellar area exhibiting flagellar and accessory pores. The molecular phylogenetic position of P. porosum sp. nov. was inferred using partial LSU rRNA gene (rDNA) and rDNA ITS sequences. This new species branched with high support in a Prorocentrum clade including P. caipirignum, P. hoffmannianum and P. cf. lima (P. lima morphotype 5 sensuZhang et al., 2015). Pairwise comparison of ITS1 and ITS2 transcripts with these closest relatives revealed the presence of compensatory base changes (CBCs), with the exception of P. cf. lima (P. lima morphotype 5), which only showed in ITS2 a hemi-CBC (HCBC) and two base changes that possibly induce a structural modification. Toxin analyses performed in two Colombian and Brazilian strains in the present study detected the presence of low amounts of okadaic acid.
Collapse
Affiliation(s)
- Edgar Arteaga-Sogamoso
- Instituto de Investigaciones Marinas y Costeras José Benito Vives de Andréis, INVEMAR, Santa Marta, Colombia. Calle 25 No. 2-55, Playa Salguero, Rodadero, Santa Marta, Colombia; Universidad Nacional de Colombia, sede Caribe, Santa Marta, Colombia. Calle 25 No. 2-55, Playa Salguero, Rodadero, Santa Marta, Colombia.
| | - Francisco Rodríguez
- Centro Nacional Instituto Español de Oceanografía (IEO-CSIC), Centro Oceanográfico de Vigo. Subida a Radio Faro 50, 36390 Vigo, Spain; European Union Reference Laboratory for Monitoring of Marine Biotoxins, Citexvi Campus Universitario de Vigo, 36310, Vigo, Spain
| | - Alberto Amato
- Laboratoire de Physiologie Cellulaire et Végétale, Université Grenoble-Alpes CEA CNRS INRA IRIG-CEA Grenoble, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France
| | - Begoña Ben-Gigirey
- European Union Reference Laboratory for Monitoring of Marine Biotoxins, Citexvi Campus Universitario de Vigo, 36310, Vigo, Spain
| | | | - Luiz Laureno Mafra
- Centro de Estudos do Mar, Universidade Federal do Paraná, P.O. Box 61, 83255-976, Pontal do Paraná, PR, Brazil
| | - Luciano Felício Fernandes
- Departamento de Botânica, SCB, Centro Politécnico, Universidade Federal do Paraná, P.O. Box 19031, 81531-990, Curitiba, Paraná CEP Brazil
| | | | - Nicolas Chomérat
- Station de Biologie Marine, IFREMER, Littoral, LER BO, Place de la Croix, F-29900, Concarneau, France
| | - Tomohiro Nishimura
- Cawthron Institute, 98 Halifax Street East, 7010 Nelson, New Zealand; Laboratory of Aquatic Environmental Science (LAQUES), Faculty of Agriculture and Marine Science, Kochi University, 200 Otsu, Monobe, Nankoku, 783-8502, Kochi Japan
| | - Chiho Homma
- Laboratory of Aquatic Environmental Science (LAQUES), Faculty of Agriculture and Marine Science, Kochi University, 200 Otsu, Monobe, Nankoku, 783-8502, Kochi Japan
| | - Masao Adachi
- Laboratory of Aquatic Environmental Science (LAQUES), Faculty of Agriculture and Marine Science, Kochi University, 200 Otsu, Monobe, Nankoku, 783-8502, Kochi Japan
| | | |
Collapse
|
4
|
Bouquet A, Perdrau MA, Laabir M, Foucault E, Chomérat N, Rolland JL, Abadie E. Liza ramada Juveniles after Exposure to the Toxic Dinoflagellate Vulcanodinium rugosum: Effects on Fish Viability, Tissue Contamination and Microalgae Survival after Gut Passage. Toxins (Basel) 2022; 14:toxins14060401. [PMID: 35737062 PMCID: PMC9229845 DOI: 10.3390/toxins14060401] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/07/2022] [Accepted: 06/09/2022] [Indexed: 02/01/2023] Open
Abstract
Pinnatoxins (PnTX) and Portimines (Prtn), two toxins produced by the benthic dinoflagellate Vulcanodinium rugosum, are known to be lethal to mice after intraperitoneal or oral administration. They are also known to accumulate in shellfish such as mussels and clams, but their effect on fish and the upper food chain remains unknown. In this work, juveniles of the fish Liza ramada (Mullet) were exposed to a strain of V. rugosum producing PnTX G and Prtn A. The fishes’ viability and contamination were recorded at times interval. Results showed that L. ramada juveniles were able to feed on V. rugosum and that their tissues could be contaminated by PnTX G and Prtn A without impact on fish viability. Furthermore, the microalgae temporary cysts survived and germinated after fish gut passage. This study showed the potential of L. ramada to transfer PnTX and Prtn toxins to the upper food chain and to disseminate V. rugosum in environment.
Collapse
Affiliation(s)
- Aurélien Bouquet
- MARBEC, Université de Montpellier, CNRS, Ifremer, IRD, 87 Avenue Jean Monnet, 34200 Sète, France; (M.A.P.); (E.F.); (E.A.)
- Correspondence: (A.B.); (J.L.R.)
| | - Marie Anaïs Perdrau
- MARBEC, Université de Montpellier, CNRS, Ifremer, IRD, 87 Avenue Jean Monnet, 34200 Sète, France; (M.A.P.); (E.F.); (E.A.)
| | - Mohamed Laabir
- MARBEC, Université de Montpellier, CNRS, Ifremer, IRD, 34095 Montpellier, France;
| | - Elodie Foucault
- MARBEC, Université de Montpellier, CNRS, Ifremer, IRD, 87 Avenue Jean Monnet, 34200 Sète, France; (M.A.P.); (E.F.); (E.A.)
| | - Nicolas Chomérat
- IFREMER, Station de Biologie Marine, Place de la Croix, 29900 Concarneau, France;
| | - Jean Luc Rolland
- MARBEC, Université de Montpellier, CNRS, Ifremer, IRD, 87 Avenue Jean Monnet, 34200 Sète, France; (M.A.P.); (E.F.); (E.A.)
- Correspondence: (A.B.); (J.L.R.)
| | - Eric Abadie
- MARBEC, Université de Montpellier, CNRS, Ifremer, IRD, 87 Avenue Jean Monnet, 34200 Sète, France; (M.A.P.); (E.F.); (E.A.)
- IFREMER, Biodivenv, 79 Route de Pointe Fort, 97231 Martinique, France
| |
Collapse
|
5
|
Bouquet A, Laabir M, Rolland JL, Chomérat N, Reynes C, Sabatier R, Felix C, Berteau T, Chiantella C, Abadie E. Prediction of Alexandrium and Dinophysis algal blooms and shellfish contamination in French Mediterranean Lagoons using decision trees and linear regression: a result of 10 years of sanitary monitoring. Harmful Algae 2022; 115:102234. [PMID: 35623690 DOI: 10.1016/j.hal.2022.102234] [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: 11/26/2021] [Revised: 03/14/2022] [Accepted: 04/02/2022] [Indexed: 06/15/2023]
Abstract
French Mediterranean lagoons are frequently subject to shellfish contamination by Diarrheic Shellfish Toxins (DSTs) and Paralytic Shellfish Toxins (PSTs). To predict the effect of various environmental factors (temperature, salinity and turbidity) on the abundance of the major toxins producing genera, Dinophysis and Alexandrium, and the link with shellfish contamination, we analysed a 10-year dataset collected from 2010 to 2019 in two major shellfish farming lagoons, Thau and Leucate, using two methods: decision trees and Zero Inflated Negative Binomial (ZINB) linear regression models. Analysis of these decision trees revealed that the highest risk of Dinophysis bloom events occurred at temperature <16.3°C and salinity <27.8, and of Alexandrium at temperature ranging from 10.4 to 21.5°C and salinity >39.2. The highest risk of shellfish contaminations by DSTs and PSTs occurred during the set of conditions associated with high risk of bloom events. Linear regression prediction enables us to understand whether temperature and salinity influence the presence of Alexandrium and affect its abundance. However, Dinophysis linear regression could not be validated due to overdispersion issues. This work demonstrates the tools which could help sanitary management of shellfish rearing areas.
Collapse
Affiliation(s)
- Aurélien Bouquet
- MARBEC, Université de Montpellier, CNRS, Ifremer, IRD, 87 Avenue Jean Monnet, 34200 Sète, France.
| | - Mohamed Laabir
- Université de Montpellier, MARBEC, CNRS, Ifremer, IRD, 34095 Montpellier, France.
| | - Jean Luc Rolland
- MARBEC, Université de Montpellier, CNRS, Ifremer, IRD, 87 Avenue Jean Monnet, 34200 Sète, France.
| | - Nicolas Chomérat
- IFREMER, Station de Biologie Marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, France.
| | - Christelle Reynes
- Institut de Génomique Fonctionnelle, IGF, Univ. Montpellier, CNRS, INSERM, 34094 Montpellier, France; Faculté de Pharmacie, Univ. Montpellier 34093 Montpellier, France.
| | - Robert Sabatier
- Institut de Génomique Fonctionnelle, IGF, Univ. Montpellier, CNRS, INSERM, 34094 Montpellier, France; Faculté de Pharmacie, Univ. Montpellier 34093 Montpellier, France.
| | - Christine Felix
- Université de Montpellier, MARBEC, CNRS, Ifremer, IRD, 87 Avenue Jean Monnet, 34200 Sète, France.
| | - Tom Berteau
- Ifremer, Laboratoire environnement ressources du Languedoc Roussillon, 34200 Sète, France.
| | - Claude Chiantella
- Ifremer, Laboratoire environnement ressources du Languedoc Roussillon, 34200 Sète, France.
| | - Eric Abadie
- MARBEC, Université de Montpellier, CNRS, Ifremer, IRD, 87 Avenue Jean Monnet, 34200 Sète, France; IFREMER, Biodivenv, 79 route de pointe fort, 97231 Le Robert, France.
| |
Collapse
|
6
|
Boisnoir A, Bilien G, Lemée R, Chomérat N. First insights on the diversity of the genus Ostreopsis (Dinophyceae, Gonyaulacales) in guadeloupe island, with emphasis on the phylogenetic position of O. heptagona. Eur J Protistol 2022; 83:125875. [DOI: 10.1016/j.ejop.2022.125875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 01/14/2022] [Accepted: 02/05/2022] [Indexed: 12/16/2022]
|
7
|
Li Z, Park JS, Kang NS, Chomérat N, Mertens KN, Gu H, Lee KW, Kim KH, Baek SH, Shin K, Han KH, Son MH, Shin HH. A new potentially toxic dinoflagellate Fukuyoa koreansis sp. nov. (Gonyaulacales, Dinophyceae) from Korean coastal waters: Morphology, phylogeny, and effects of temperature and salinity on growth. Harmful Algae 2021; 109:102107. [PMID: 34815020 DOI: 10.1016/j.hal.2021.102107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 03/08/2021] [Revised: 09/07/2021] [Accepted: 09/14/2021] [Indexed: 06/13/2023]
Abstract
To clarify an unspecified toxic Gambierdiscus-like species isolated from seawaters off Jeju Island, Korea, its morphology and molecular phylogeny based on the small subunit (SSU) and partial large subunit (LSU) rRNA gene sequences were examined. Cells were narrow in ventral view and broad in lateral view with a smooth surface. The round thecal pores were evenly distributed, with an average diameter of 0.41 µm. Cell depth, width and height were 51.7 ± 4.5 μm, 43.0 ± 4.2 μm and 55.0 ± 4.7 μm, respectively, and depth-to-width (D/W) and height-to-width (H/W) ratios were 1.1 ± 0.2 μm and 1.3 ± 0.02 μm, respectively. The nucleus was located in the hypotheca. Scanning electron microscope observations revealed that the cells displayed a plate formula of Po, 4', 6'', 6c, 6s, 5''' and 2''', and transmission electron microscope observation demonstrated that the cells contained crystal-like particles. Morphological features indicated that the unspecified Korean isolate belonged to the genus Fukuyoa, and based on the H/W and D/W ratios, the apical pore H/W ratio and thecal pore size, it could be differentiated from other Fukuyoa species. The phylogenetic analyses based on the SSU and LSU rRNA sequences revealed that the Korean isolate was nested within the genus Fukuyoa with high support, and it grouped with F. cf. yasumotoi isolated from Japan. Based on the morpho-molecular data, a new species, Fukuyoa koreansis sp. nov. is proposed. The maximum growth rate (0.254 d-1) of F. koreansis was observed at 25°C and a salinity of 25. The required levels of temperature and salinity for growth distinguished Fukuyoa koreansis from Gambierdiscus species.
Collapse
Affiliation(s)
- Zhun Li
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea
| | - Joon Sang Park
- Library of Marine Samples, Korea Institute of Ocean Science & Technology, Geoje 53201, Republic of Korea
| | - Nam Seon Kang
- Marine Biodiversity Institute of Korea, Seocheon 33662, Republic of Korea
| | | | | | - Haifeng Gu
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
| | - Kyun-Woo Lee
- Marine Ecosystem and Biological Research Center, Korea Institute of Ocean Science & Technology, Republic of Korea
| | - Ki Hyun Kim
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea
| | - Seung Ho Baek
- Risk Assessment Research Center, Korea Institute of Ocean Science & Technology, Geoje 53201, Republic of Korea
| | - Kyoungsoon Shin
- Ballast Water Research Center, Korea Institute of Ocean Science & Technology, Geoje 53201, Republic of Korea
| | - Kyong Ha Han
- Library of Marine Samples, Korea Institute of Ocean Science & Technology, Geoje 53201, Republic of Korea
| | - Moon Ho Son
- National Institute of Fisheries Science, Busan, 619-705, Republic of Korea
| | - Hyeon Ho Shin
- Library of Marine Samples, Korea Institute of Ocean Science & Technology, Geoje 53201, Republic of Korea.
| |
Collapse
|
8
|
M'Rabet C, Kéfi-Daly Yahia O, Chomérat N, Zentz F, Bilien G, Pringault O. Transient effect of bisphenol A (BPA) and di-(2-ethylhexyl) phthalate (DEHP) on the cosmopolitan marine diatom Chaetoceros decipiens-lorenzianus. Environ Pollut 2021; 285:117362. [PMID: 34380207 DOI: 10.1016/j.envpol.2021.117362] [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: 01/30/2021] [Revised: 05/09/2021] [Accepted: 05/10/2021] [Indexed: 06/13/2023]
Abstract
Incubation under controlled laboratory conditions were performed to assess the toxic effects of two plastic derived chemicals, bisphenol A (BPA) and di-(2-ethylhexyl) phthalate (DEHP), on the growth, photosynthetic efficiency and photosynthetic activity of the cosmopolitan diatom Chaetoceros decipiens-lorenzianus. Non-axenic diatom cells were exposed to concentrations of BPA and DEHP (separately and in mixture), mimicking concentrations observed in contaminated marine ecosystems, for seven days. Upon short-term exposure (i.e., during the first 48 h), BPA and DEHP induced a slight but significant stimulation of biomass and photosynthetic activity relative to the control, whereas, no significant impact was observed on the photosynthetic efficiency. Nevertheless, this pattern was transient. The stimulation was followed by a return to control conditions for all treatments at the end of incubation. These results showed that the cosmopolitan diatom Chaetoceros was not impacted by representative in situ concentrations of plastic derivatives, thus confirming its ability to thrive in coastal anthropogenic environments.
Collapse
Affiliation(s)
- Charaf M'Rabet
- Tunisian National Agronomic Institute (INAT), IRESA - Carthage University. LR18ES41 (Laboratoire des Sciences de l'Environnement, Biologie et Physiologie des Organismes Aquatiques, Univ. Tunis EL Manar), 43 Avenue Charles Nicolle, 1082, Tunis, Tunisia; UMR 9190 MARBEC IRD-Ifremer-CNRS-Université de Montpellier, Place Eugène Bataillon, Case 093, 34095, Montpellier, Cedex 5, France.
| | - Ons Kéfi-Daly Yahia
- Tunisian National Agronomic Institute (INAT), IRESA - Carthage University. LR18ES41 (Laboratoire des Sciences de l'Environnement, Biologie et Physiologie des Organismes Aquatiques, Univ. Tunis EL Manar), 43 Avenue Charles Nicolle, 1082, Tunis, Tunisia.
| | - Nicolas Chomérat
- Institut Français de Recherche pour l'Exploitation de la Mer- ODE/UL/LER Bretagne Occidentale, Station de Biologie Marine, Place de la Croix, BP 40537, 29185, Concarneau, France.
| | - Frédéric Zentz
- Université de Bretagne Occidentale, Station de Biologie Marine, Place de la Croix, 29185, Concarneau, France.
| | - Gwenaël Bilien
- Institut Français de Recherche pour l'Exploitation de la Mer- ODE/UL/LER Bretagne Occidentale, Station de Biologie Marine, Place de la Croix, BP 40537, 29185, Concarneau, France.
| | - Olivier Pringault
- UMR 9190 MARBEC IRD-Ifremer-CNRS-Université de Montpellier, Place Eugène Bataillon, Case 093, 34095, Montpellier, Cedex 5, France; Aix Marseille Univ, Universite de Toulon, CNRS, IRD, MIO UM 110, 13288, Marseille, France.
| |
Collapse
|
9
|
Séchet V, Sibat M, Billien G, Carpentier L, Rovillon GA, Raimbault V, Malo F, Gaillard S, Perrière-Rumebe M, Hess P, Chomérat N. Characterization of toxin-producing strains of Dinophysis spp. (Dinophyceae) isolated from French coastal waters, with a particular focus on the D. acuminata-complex. Harmful Algae 2021; 107:101974. [PMID: 34456013 DOI: 10.1016/j.hal.2021.101974] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 07/24/2020] [Revised: 12/22/2020] [Accepted: 01/05/2021] [Indexed: 06/13/2023]
Abstract
Dinoflagellates of the genus Dinophysis are the most prominent producers of Diarrhetic Shellfish Poisoning (DSP) toxins which have an impact on public health and on marine aquaculture worldwide. In particular, Dinophysis acuminata has been reported as the major DSP agent in Western Europe. Still, its contribution to DSP events in the regions of the English Channel and the Atlantic coast of France, and the role of the others species of the Dinophysis community in these areas are not as clear. In addition, species identification within the D. acuminata complex has proven difficult due to their highly similar morphological features. In the present study, 30 clonal strains of the dominant Dinophysis species have been isolated from French coasts including the English Channel (3 sites), the Atlantic Ocean (11 sites) and the Mediterranean Sea (6 sites). Morphologically, strains were identified as three species: D. acuta, D. caudata, D. tripos, as well as the D. acuminata-complex. Sequences of the ITS and LSU rDNA regions confirmed these identifications and revealed no genetic difference within the D. acuminata-complex. Using the mitochondrial gene cox1, two groups of strains differing by only one substitution were found in the D. acuminata-complex, but SEM analysis of various strains showed a large range of morphological variations. Based on geographical origin and morphology, strains of the subclade A were ascribed to 'D. acuminata' while those of the subclade B were ascribed to 'D. sacculus'. Nevertheless, the distinction into two separate species remains questionable and was not supported by our genetic data. The considerable variations observed in cultured strains suggest that physiological factors might influence cell contour and bias identification. Analyses of Dinophysis cultures from French coastal waters using liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) revealed species-conserved toxin profiles for D. acuta (dinophysistoxin 2 (DTX2), okadaic acid (OA), pectenotoxin 2 (PTX2)), D. caudata (PTX2) and D. tripos (PTX2), irrespective of geographical origin (Atlantic Ocean or Mediterranean Sea). Within the D. acuminata-complex, two different toxin profiles were observed: the strains of 'D. acuminata' (subclade A) from the English Channel and the Atlantic Ocean contained only OA while strains of 'D. sacculus' (subclade B) from Mediterranean Sea/Atlantic Ocean contained PTX2 as the dominant toxin, with OA and C9-esters also being present, albeit in lower proportions. The same difference in toxin profiles between 'D. sacculus' and 'D. acuminata' was reported in several studies from Galicia (NW- Spain). This difference in toxin profiles has consequences in terms of public health, and consequently for monitoring programs. While toxin profile could appear as a reliable feature separating 'D. acuminata' from 'D. sacculus' on both French and Spanish coasts, this does not seem consistent with observations on a broader geographical scale for the D. acuminata complex, possibly due to the frequent lack of genetic characterization.
Collapse
Affiliation(s)
- Véronique Séchet
- Ifremer, DYNECO, Laboratoire Phycotoxines, F-44000 Nantes, France.
| | - Manoella Sibat
- Ifremer, DYNECO, Laboratoire Phycotoxines, F-44000 Nantes, France
| | - Gwenael Billien
- Ifremer, LITTORAL, Laboratoire Environnement Ressources de Bretagne Occidentale, Station de Biologie Marine de Concarneau, 29900 Concarneau, France
| | | | | | | | - Florent Malo
- Ifremer, DYNECO, Laboratoire Phycotoxines, F-44000 Nantes, France
| | - Sylvain Gaillard
- Ifremer, DYNECO, Laboratoire Phycotoxines, F-44000 Nantes, France
| | | | - Philipp Hess
- Ifremer, DYNECO, Laboratoire Phycotoxines, F-44000 Nantes, France
| | - Nicolas Chomérat
- Ifremer, LITTORAL, Laboratoire Environnement Ressources de Bretagne Occidentale, Station de Biologie Marine de Concarneau, 29900 Concarneau, France
| |
Collapse
|
10
|
Moreira-González AR, Comas-González A, Valle-Pombrol A, Seisdedo-Losa M, Hernández-Leyva O, Fernandes LF, Chomérat N, Bilien G, Hervé F, Rovillon GA, Hess P, Alonso-Hernández CM, Mafra LL. Summer bloom of Vulcanodinium rugosum in Cienfuegos Bay (Cuba) associated to dermatitis in swimmers. Sci Total Environ 2021; 757:143782. [PMID: 33229082 DOI: 10.1016/j.scitotenv.2020.143782] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 08/10/2020] [Revised: 10/22/2020] [Accepted: 11/09/2020] [Indexed: 06/11/2023]
Abstract
The marine dinoflagellate Vulcanodinium rugosum produces powerful paralyzing and cytotoxic compounds named pinnatoxins (PnTX) and portimines. Even though, no related human intoxication episodes following direct exposure in seawater or the ingestion of contaminated seafood have been documented so far. This study aimed at investigating a dinoflagellate bloom linked to acute dermatitis cases in two recreational beaches in Cienfuegos Bay, Cuba. We used epidemiological and clinical data from 60 dermatitis cases consisting of individuals in close contact with the bloom. Seawater physical-chemical properties were described, and the microorganism causing the bloom was identified by means of light and scanning electron microscopy. Morphological identification was confirmed genetically by sequencing the internal transcribed spacers ITS1 and ITS2, and the 5.8S rDNA region. Toxic compounds were identified from a bloom extract using liquid chromatography (LC) coupled to high-resolution mass spectrometry (HRMS), and their concentrations were estimated based on low-resolution tandem mass spectrometry (LC-MS/MS). Sixty people who had prolonged contact with the dinoflagellate bloom suffered acute dermal irritation. Most patients (79.2%) were children and had to be treated with antibiotics; some required >5-day hospitalization. Combined morphological and genetic characters indicated V. rugosum as the causative agent of the bloom. rDNA sequences of the V. rugosum genotype found in the bloom aligned with others from Asia, including material found in the ballast tank of a ship in Florida. The predominant toxins in the bloom were portimine, PnTX-F and PnTX-E, similar to strains originating from the Pacific Ocean. This bloom was associated with unusual weather conditions such as frequent and prolonged droughts. Our findings indicate a close link between the V. rugosum bloom and a dermatitis outbreak among swimmers in Cienfuegos Bay. Phylogenetic evidence suggests a recent introduction of V. rugosum from the Pacific Ocean into Caribbean waters, possibly via ballast water.
Collapse
Affiliation(s)
- Angel R Moreira-González
- Centro de Estudios Ambientales de Cienfuegos (CEAC), AP. 5, Ciudad Nuclear, CP 59350, Cienfuegos, Cuba; Centro de Estudos do Mar, Universidade Federal do Paraná, P.O. Box 61, Av. Beira Mar, s/n, Pontal do Paraná, Paraná 83255-976, Brazil.
| | - Augusto Comas-González
- Centro de Estudios Ambientales de Cienfuegos (CEAC), AP. 5, Ciudad Nuclear, CP 59350, Cienfuegos, Cuba.
| | - Aimee Valle-Pombrol
- Centro de Estudios Ambientales de Cienfuegos (CEAC), AP. 5, Ciudad Nuclear, CP 59350, Cienfuegos, Cuba.
| | - Mabel Seisdedo-Losa
- Centro de Estudios Ambientales de Cienfuegos (CEAC), AP. 5, Ciudad Nuclear, CP 59350, Cienfuegos, Cuba.
| | - Olidia Hernández-Leyva
- Centro Provincial de Higiene, Epidemiología y Microbiología de Cienfuegos, 13 Calzada de Máximo Gómez, Cienfuegos 55100, Cuba.
| | - Luciano F Fernandes
- Departamento de Botânica, Universidade Federal do Paraná, Centro Politécnico, R. Elétrica, 540, Curitiba, Paraná 82590-300, Brazil.
| | - Nicolas Chomérat
- IFREMER, Laboratory of Environment and Resources Western Brittany, Coastal Research Unit, Quai de la Croix, 29900 Concarneau Cedex, France.
| | - Gwenaël Bilien
- IFREMER, Laboratory of Environment and Resources Western Brittany, Coastal Research Unit, Quai de la Croix, 29900 Concarneau Cedex, France.
| | - Fabienne Hervé
- IFREMER, DYNECO, Laboratoire Phycotoxines, Rue de l'Île d'Yeu, 44311 Nantes Cedex 03, France.
| | | | - Philipp Hess
- IFREMER, DYNECO, Laboratoire Phycotoxines, Rue de l'Île d'Yeu, 44311 Nantes Cedex 03, France.
| | - Carlos M Alonso-Hernández
- Centro de Estudios Ambientales de Cienfuegos (CEAC), AP. 5, Ciudad Nuclear, CP 59350, Cienfuegos, Cuba.
| | - Luiz L Mafra
- Centro de Estudos do Mar, Universidade Federal do Paraná, P.O. Box 61, Av. Beira Mar, s/n, Pontal do Paraná, Paraná 83255-976, Brazil.
| |
Collapse
|
11
|
Chomérat N, Bilien G, Viallon J, Hervé F, Réveillon D, Henry K, Zubia M, Vieira C, Ung A, Gatti CMI, Roué M, Derrien A, Amzil Z, Darius HT, Chinain M. Taxonomy and toxicity of a bloom-forming Ostreopsis species (Dinophyceae, Gonyaulacales) in Tahiti island (South Pacific Ocean): one step further towards resolving the identity of O. siamensis. Harmful Algae 2020; 98:101888. [PMID: 33129466 DOI: 10.1016/j.hal.2020.101888] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 03/19/2020] [Revised: 07/18/2020] [Accepted: 07/28/2020] [Indexed: 06/11/2023]
Abstract
Among dinoflagellates responsible for benthic harmful algal blooms, the genus Ostreopsis primarily described from tropical areas has been increasingly reported from subtropical and temperate areas worldwide. Several species of this toxigenic genus produce analogs of palytoxin, thus representing a major threat to human and environmental health. The taxonomy of several species needs to be clarified as it was based mostly on morphological descriptions leading in some cases to ambiguous interpretations and misidentifications. The present study aims at reporting a benthic bloom that occurred in April 2019 in Tahiti island, French Polynesia. A complete taxonomic investigation of the blooming Ostreopsis species was realized using light, epifluorescence and field emission electron microscopy and phylogenetic analyses inferred from LSU rDNA and ITS-5.8S rDNA regions. Toxicity of a natural sample and strains isolated from the bloom was assessed using both neuroblastoma cell-based assay and LC-MS/MS analyses. Morphological observations showed that cells were round to oval, large, 58.0-82.5 µm deep (dorso-ventral length) and 45.7-61.2 µm wide. The cingulum was conspicuously undulated, forming a 'V' in ventral view. Thecal plates possessed large pores in depressions, with a collar rim. Detailed observation also revealed the presence of small thecal pores invisible in LM. Phylogenetic analyses were congruent and all sequences clustered within the genotype Ostreopsis sp. 6, in a subclade closely related to sequences from the Gulf of Thailand and Malaysia. No toxicity was found on the field sample but all the strains isolated from the bloom were found to be cytotoxic and produced ostreocin D, a lower amount of ostreocins A and B and putatively other compounds. Phylogenetic data demonstrate the presence of this species in the Gulf of Thailand, at the type locality of O. siamensis, and morphological data are congruent with the original description and support this identification.
Collapse
Affiliation(s)
- Nicolas Chomérat
- Ifremer, LER BO, Station of Marine Biology of Concarneau, Place de la Croix, F-29900 Concarneau, France.
| | - Gwenael Bilien
- Ifremer, LER BO, Station of Marine Biology of Concarneau, Place de la Croix, F-29900 Concarneau, France
| | - Jérôme Viallon
- Institut Louis Malardé, Laboratoire des Micro-algues toxiques, UMR 241-EIO, PO box 30, 98713 Papeete, Tahiti, French Polynesia
| | - Fabienne Hervé
- Ifremer, Phycotoxins Laboratory, BP 21105, F-44311 Nantes Cedex 3, France
| | - Damien Réveillon
- Ifremer, Phycotoxins Laboratory, BP 21105, F-44311 Nantes Cedex 3, France
| | - Kévin Henry
- Institut Louis Malardé, Laboratoire des Micro-algues toxiques, UMR 241-EIO, PO box 30, 98713 Papeete, Tahiti, French Polynesia
| | - Mayalen Zubia
- Université de Polynésie Française, UMR 241-EIO, PO Box 6570, 98702 Faa'a, Tahiti, French Polynesia
| | - Christophe Vieira
- Kobe University Research Center for Inland Seas, Rokkodai, Kobe 657-8501, Japan
| | - André Ung
- Institut Louis Malardé, Laboratoire des Micro-algues toxiques, UMR 241-EIO, PO box 30, 98713 Papeete, Tahiti, French Polynesia
| | - Clémence Mahana Iti Gatti
- Institut Louis Malardé, Laboratoire des Micro-algues toxiques, UMR 241-EIO, PO box 30, 98713 Papeete, Tahiti, French Polynesia
| | - Mélanie Roué
- Institut de Recherche pour le Développement (IRD), UMR 241-EIO, PO box 529, 98713 Papeete, Tahiti, French Polynesia
| | - Amélie Derrien
- Ifremer, LER BO, Station of Marine Biology of Concarneau, Place de la Croix, F-29900 Concarneau, France
| | - Zouher Amzil
- Ifremer, Phycotoxins Laboratory, BP 21105, F-44311 Nantes Cedex 3, France
| | - Hélène Taiana Darius
- Institut Louis Malardé, Laboratoire des Micro-algues toxiques, UMR 241-EIO, PO box 30, 98713 Papeete, Tahiti, French Polynesia
| | - Mireille Chinain
- Institut Louis Malardé, Laboratoire des Micro-algues toxiques, UMR 241-EIO, PO box 30, 98713 Papeete, Tahiti, French Polynesia
| |
Collapse
|
12
|
Mertens KN, Adachi M, Anderson DM, Band-Schmidt CJ, Bravo I, Brosnahan ML, Bolch CJS, Calado AJ, Carbonell-Moore MC, Chomérat N, Elbrächter M, Figueroa RI, Fraga S, Gárate-Lizárraga I, Garcés E, Gu H, Hallegraeff G, Hess P, Hoppenrath M, Horiguchi T, Iwataki M, John U, Kremp A, Larsen J, Leaw CP, Li Z, Lim PT, Litaker W, MacKenzie L, Masseret E, Matsuoka K, Moestrup Ø, Montresor M, Nagai S, Nézan E, Nishimura T, Okolodkov YB, Orlova TY, Reñé A, Sampedro N, Satta CT, Shin HH, Siano R, Smith KF, Steidinger K, Takano Y, Tillmann U, Wolny J, Yamaguchi A, Murray S. Morphological and phylogenetic data do not support the split of Alexandrium into four genera. Harmful Algae 2020; 98:101902. [PMID: 33129459 DOI: 10.1016/j.hal.2020.101902] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 03/30/2020] [Revised: 09/02/2020] [Accepted: 09/09/2020] [Indexed: 06/11/2023]
Abstract
A recently published study analyzed the phylogenetic relationship between the genera Centrodinium and Alexandrium, confirming an earlier publication showing the genus Alexandrium as paraphyletic. This most recent manuscript retained the genus Alexandrium, introduced a new genus Episemicolon, resurrected two genera, Gessnerium and Protogonyaulax, and stated that: "The polyphyly [sic] of Alexandrium is solved with the split into four genera". However, these reintroduced taxa were not based on monophyletic groups. Therefore this work, if accepted, would result in replacing a single paraphyletic taxon with several non-monophyletic ones. The morphological data presented for genus characterization also do not convincingly support taxa delimitations. The combination of weak molecular phylogenetics and the lack of diagnostic traits (i.e., autapomorphies) render the applicability of the concept of limited use. The proposal to split the genus Alexandrium on the basis of our current knowledge is rejected herein. The aim here is not to present an alternative analysis and revision, but to maintain Alexandrium. A better constructed and more phylogenetically accurate revision can and should wait until more complete evidence becomes available and there is a strong reason to revise the genus Alexandrium. The reasons are explained in detail by a review of the available molecular and morphological data for species of the genera Alexandrium and Centrodinium. In addition, cyst morphology and chemotaxonomy are discussed, and the need for integrative taxonomy is highlighted.
Collapse
Affiliation(s)
- Kenneth Neil Mertens
- Ifremer, LER BO, Station de Biologie Marine, Place de la Croix, BP40537, F-29185 Concarneau Cedex, France.
| | - Masao Adachi
- Laboratory of Aquatic Environmental Science (LAQUES), Faculty of Agriculture and Marine Science, Kochi University, 200 Otsu, Monobe, Nankoku, Kochi 783-8502, Japan
| | | | - Christine J Band-Schmidt
- Departamento de Plancton y Ecología Marina, Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas (IPN-CICIMAR), La Paz, B.C.S. 23096, Mexico
| | - Isabel Bravo
- Instituto Español de Oceanografía (IEO), Subida a Radio Faro 50, 36390 Vigo, Spain
| | | | - Christopher J S Bolch
- Institute for Marine & Antarctic Studies, University of Tasmania, Locked Bag 1370, Launceston TAS 7250, Australia
| | - António J Calado
- Department of Biology and GeoBioTec Research Unit, University of Aveiro, P-3810-193 Aveiro, Portugal
| | - M Consuelo Carbonell-Moore
- Department of Botany and Plant Pathology, College of Agricultural Sciences, Oregon State University, Corvallis, OR 97331-2902, USA
| | - Nicolas Chomérat
- Ifremer, LER BO, Station de Biologie Marine, Place de la Croix, BP40537, F-29185 Concarneau Cedex, France
| | - Malte Elbrächter
- Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung Sylt, Hafenstr. 43, 25992 List/Sylt, Germany
| | - Rosa Isabel Figueroa
- Instituto Español de Oceanografía (IEO), Subida a Radio Faro 50, 36390 Vigo, Spain
| | | | - Ismael Gárate-Lizárraga
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Apartado Postal 592, Col. Centro, La Paz, B.C.S. 23000, Mexico
| | - Esther Garcés
- Departament de Biologia Marina i Oceanografía, Institut de Ciències del Mar, Consejo Superior de Investigaciones Científicas (CSIC), Pg. Marítim de la Barceloneta 37-49, 08003 Barcelona, Spain
| | - Haifeng Gu
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
| | - Gustaaf Hallegraeff
- Institute for Marine and Antarctic Studies, University of Tasmania, Private Bag 129, Hobart, Tasmania 7001, Australia
| | - Philipp Hess
- Ifremer, DYNECO, Laboratoire Phycotoxines, Rue de l'Ile d'Yeu, 44311 Nantes, France
| | - Mona Hoppenrath
- Senckenberg am Meer, German Center for Marine Biodiversity Research, Wilhelmshaven, Germany
| | - Takeo Horiguchi
- Department of Biological Sciences, Faculty of Science, Hokkaido University, North 10, West 8, Sapporo 060-0810, Hokkaido, Japan
| | - Mitsunori Iwataki
- Asian Natural Environmental Science Center, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan
| | - Uwe John
- Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung, Bremerhaven, Germany
| | - Anke Kremp
- Leibniz Institut für Ostseeforschung Warnemünde, Seestr. 15, 18119 Rostock, Germany
| | - Jacob Larsen
- Marine Biological Section, Department of Biology, University of Copenhagen, Universitetsparken 4, DK-2100 Copenhagen Ø, Denmark
| | - Chui Pin Leaw
- Bachok Marine Research Station, Institute of Ocean and Earth Sciences, University of Malaya, 16310 Bachok, Kelantan, Malaysia
| | - Zhun Li
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea
| | - Po Teen Lim
- Bachok Marine Research Station, Institute of Ocean and Earth Sciences, University of Malaya, 16310 Bachok, Kelantan, Malaysia
| | - Wayne Litaker
- CSS Inc. Under contract to NOS/NOAA, Center for Coastal Fisheries and Habitat Research, 101 Pivers Island Road, Beaufort, NC 28516, USA
| | - Lincoln MacKenzie
- Coastal & Freshwater Group, Cawthron Institute, Private Bag 2, 98 Halifax Street East, Nelson 7042, New Zealand
| | - Estelle Masseret
- MARBEC, Université de Montpellier, CNRS, Ifremer, IRD, Montpellier, France
| | - Kazumi Matsuoka
- C/O Institute for East China Sea Research, Nagasaki University, 1551-7 Taira-machi, Nagasaki 851-2213, Japan
| | - Øjvind Moestrup
- Marine Biological Section, Department of Biology, University of Copenhagen, Universitetsparken 4, DK-2100 Copenhagen Ø, Denmark
| | - Marina Montresor
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy
| | - Satoshi Nagai
- National Research Institute of Fisheries Science, 2-12-4 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-8648, Japan
| | - Elisabeth Nézan
- Ifremer, LER BO, Station de Biologie Marine, Place de la Croix, BP40537, F-29185 Concarneau Cedex, France; National Museum of Natural History, DGD-REVE, Station de Biologie Marine de Concarneau, Place de la Croix, 29900 Concarneau, France
| | - Tomohiro Nishimura
- Coastal & Freshwater Group, Cawthron Institute, Private Bag 2, 98 Halifax Street East, Nelson 7042, New Zealand
| | - Yuri B Okolodkov
- Universidad Veracruzana, Instituto de Ciencias Marinas y Pesquerías, Laboratorio de Botánica Marina y Planctología, Calle Mar Mediterráneo No. 314, Fracc. Costa Verde, C.P. 94294 Boca del Río, Veracruz, Mexico
| | - Tatiana Yu Orlova
- A.V. Zhirmunsky National Scientific Center of Marine Biology of the Far Eastern Branch of the Russian Academy of Sciences, Palchevskogo Street, 17, Vladivostok 690041, Russia
| | - Albert Reñé
- Departament de Biologia Marina i Oceanografía, Institut de Ciències del Mar, Consejo Superior de Investigaciones Científicas (CSIC), Pg. Marítim de la Barceloneta 37-49, 08003 Barcelona, Spain
| | - Nagore Sampedro
- Departament de Biologia Marina i Oceanografía, Institut de Ciències del Mar, Consejo Superior de Investigaciones Científicas (CSIC), Pg. Marítim de la Barceloneta 37-49, 08003 Barcelona, Spain
| | - Cecilia Teodora Satta
- Dipartimento di Architettura, Design e Urbanistica, University of Sassari, Via Piandanna 4, 07100 Sassari, Italy
| | - Hyeon Ho Shin
- Library of Marine Samples, Korea Institute of Ocean Science and Technology, Geoje, Republic of Korea
| | | | - Kirsty F Smith
- Coastal & Freshwater Group, Cawthron Institute, Private Bag 2, 98 Halifax Street East, Nelson 7042, New Zealand
| | - Karen Steidinger
- Florida Fish and Wildlife Conservation Commission Fish and Wildlife Research Institute, 100 8th Avenue SE St. Petersburg, FL 33701, USA
| | | | - Urban Tillmann
- Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung, Bremerhaven, Germany
| | - Jennifer Wolny
- Maryland Department of Natural Resources, 1919 Lincoln Drive Annapolis, MD 21401 USA
| | - Aika Yamaguchi
- Department of Biological Sciences, Faculty of Science, Hokkaido University, North 10, West 8, Sapporo 060-0810, Hokkaido, Japan
| | - Shauna Murray
- Climate Change Cluster, University of Technology Sydney, Ultimo, NSW 2007, Australia
| |
Collapse
|
13
|
Díaz-Asencio L, Clausing RJ, Vandersea M, Chamero-Lago D, Gómez-Batista M, Hernández-Albernas JI, Chomérat N, Rojas-Abrahantes G, Litaker RW, Tester P, Diogène J, Alonso-Hernández CM, Dechraoui Bottein MY. Ciguatoxin Occurrence in Food-Web Components of a Cuban Coral Reef Ecosystem: Risk-Assessment Implications. Toxins (Basel) 2019; 11:toxins11120722. [PMID: 31835676 PMCID: PMC6950047 DOI: 10.3390/toxins11120722] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/07/2019] [Accepted: 11/08/2019] [Indexed: 11/19/2022] Open
Abstract
In Cuba, ciguatera poisoning associated with fish consumption is the most commonly occurring non-bacterial seafood-borne illness. Risk management through fish market regulation has existed in Cuba for decades and consists of bans on selected species above a certain weight; however, the actual occurrence of ciguatoxins (CTXs) in seafood has never been verified. From this food safety risk management perspective, a study site locally known to be at risk for ciguatera was selected. Analysis of the epiphytic dinoflagellate community identified the microalga Gambierdiscus. Gambierdiscus species included six of the seven species known to be present in Cuba (G. caribaeus, G. belizeanus, G. carpenteri, G. carolinianus, G. silvae, and F. ruetzleri). CTX-like activity in invertebrates, herbivorous and carnivorous fishes were analyzed with a radioligand receptor-binding assay and, for selected samples, with the N2A cell cytotoxicity assay. CTX activity was found in 80% of the organisms sampled, with toxin values ranging from 2 to 8 ng CTX3C equivalents g−1 tissue. Data analysis further confirmed CTXs trophic magnification. This study constitutes the first finding of CTX-like activity in marine organisms in Cuba and in herbivorous fish in the Caribbean. Elucidating the structure–activity relationship and toxicology of CTX from the Caribbean is needed before conclusions may be drawn about risk exposure in Cuba and the wider Caribbean.
Collapse
Affiliation(s)
- Lisbet Díaz-Asencio
- Centro de Estudios Ambientales de Cienfuegos, Ciudad Nuclear, Cienfuegos 59350, Cuba; (L.D.-A.); (D.C.-L.); (M.G.-B.); (G.R.-A.); (C.M.A.-H.)
| | - Rachel J. Clausing
- Environment Laboratories, Department of Nuclear Science and Application, International Atomic Energy Agency, 4 Quai Antoine 1er, MC 98000 Monaco, Monaco;
- Department of Ecology and Evolutionary Biology, University of California Los Angeles, 621 Charles E Young Dr S, Los Angeles, CA 90095-1606, USA
| | - Mark Vandersea
- National Oceanic and Atmospheric Administration, National Ocean Service, National Centers for Coastal Ocean Science, Beaufort Laboratory, 101 Pivers Island Rd., Beaufort, NC 28516, USA; (M.V.); (R.W.L.)
| | - Donaida Chamero-Lago
- Centro de Estudios Ambientales de Cienfuegos, Ciudad Nuclear, Cienfuegos 59350, Cuba; (L.D.-A.); (D.C.-L.); (M.G.-B.); (G.R.-A.); (C.M.A.-H.)
| | - Miguel Gómez-Batista
- Centro de Estudios Ambientales de Cienfuegos, Ciudad Nuclear, Cienfuegos 59350, Cuba; (L.D.-A.); (D.C.-L.); (M.G.-B.); (G.R.-A.); (C.M.A.-H.)
| | | | - Nicolas Chomérat
- Ifremer, Laboratory of Environment and Resources Western Britanny, Coastal Research Unit, Place de la Croix, B.P. 40537, 29185 Concarneau CEDEX, France;
| | - Gabriel Rojas-Abrahantes
- Centro de Estudios Ambientales de Cienfuegos, Ciudad Nuclear, Cienfuegos 59350, Cuba; (L.D.-A.); (D.C.-L.); (M.G.-B.); (G.R.-A.); (C.M.A.-H.)
| | - R. Wayne Litaker
- National Oceanic and Atmospheric Administration, National Ocean Service, National Centers for Coastal Ocean Science, Beaufort Laboratory, 101 Pivers Island Rd., Beaufort, NC 28516, USA; (M.V.); (R.W.L.)
| | - Patricia Tester
- Ocean Tester, LLC, 295 Dills Point Road, Beaufort, NC 28516, USA;
| | - Jorge Diogène
- Marine Environmental Monitoring, IRTA, Ctra. Poble Nou km 5.5, 43540 Sant Carles de la Ràpita, Spain;
| | - Carlos M. Alonso-Hernández
- Centro de Estudios Ambientales de Cienfuegos, Ciudad Nuclear, Cienfuegos 59350, Cuba; (L.D.-A.); (D.C.-L.); (M.G.-B.); (G.R.-A.); (C.M.A.-H.)
- Environment Laboratories, Department of Nuclear Science and Application, International Atomic Energy Agency, 4 Quai Antoine 1er, MC 98000 Monaco, Monaco;
| | - Marie-Yasmine Dechraoui Bottein
- Environment Laboratories, Department of Nuclear Science and Application, International Atomic Energy Agency, 4 Quai Antoine 1er, MC 98000 Monaco, Monaco;
- Intergovernmental Oceanographic Commission of UNESCO, IOC Science and Communication Centre on Harmful Algae, University of Copenhagen, 2100 Copenhagen, Denmark
- Correspondence:
| |
Collapse
|
14
|
Tibiriçá CEJA, Leite IP, Batista TVV, Fernandes LF, Chomérat N, Herve F, Hess P, Mafra LL. Ostreopsis cf. ovata Bloom in Currais, Brazil: Phylogeny, Toxin Profile and Contamination of Mussels and Marine Plastic Litter. Toxins (Basel) 2019; 11:E446. [PMID: 31357621 PMCID: PMC6723160 DOI: 10.3390/toxins11080446] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 07/23/2019] [Accepted: 07/24/2019] [Indexed: 02/06/2023] Open
Abstract
Ostreopsis cf. ovata is a toxic marine benthic dinoflagellate responsible for harmful blooms affecting ecosystem and human health, mostly in the Mediterranean Sea. In this study we report the occurrence of a summer O. cf. ovata bloom in Currais, a coastal archipelago located on the subtropical Brazilian coast (~25° S). This bloom was very similar to Mediterranean episodes in many aspects: (a) field-sampled and cultivated O. cf. ovata cells aligned phylogenetically (ITS and LSU regions) along with Mediterranean strains; (b) the bloom occurred at increasing temperature and irradiance, and decreasing wind speed; (c) cell densities reached up to 8.0 × 104 cell cm-2 on fiberglass screen and 5.6 × 105 cell g-1 fresh weight on seaweeds; (d) and toxin profiles were composed mostly of ovatoxin-a (58%) and ovatoxin-b (32%), up to 35.5 pg PLTX-eq. cell-1 in total. Mussels were contaminated during the bloom with unsafe toxin levels (up to 131 µg PLTX-eq. kg-1). Ostreopsis cells attached to different plastic litter, indicating an alternate route for toxin transfer to marine fauna via ingestion of biofilm-coated plastic debris.
Collapse
Affiliation(s)
- Carlos Eduardo J A Tibiriçá
- Centro de Estudos do Mar, Universidade Federal do Paraná, Cx. Postal 61, Pontal do Paraná, PR 83255-976, Brazil.
| | - Isabel P Leite
- Centro de Estudos do Mar, Universidade Federal do Paraná, Cx. Postal 61, Pontal do Paraná, PR 83255-976, Brazil
| | - Talita V V Batista
- Centro de Estudos do Mar, Universidade Federal do Paraná, Cx. Postal 61, Pontal do Paraná, PR 83255-976, Brazil
| | - Luciano F Fernandes
- Departamento de Botânica, Universidade Federal do Paraná, Cx. Postal 19031, Curitiba, PR 81531-990, Brazil
| | - Nicolas Chomérat
- LER BO, Station de Biologie Marine, IFREMER, Place de la Croix, F-29900 Concarneau, France
| | - Fabienne Herve
- Laboratoire Phycotoxines, IFREMER, Rue de l'Ile d'Yeu, 44311 Nantes, France
| | - Philipp Hess
- Laboratoire Phycotoxines, IFREMER, Rue de l'Ile d'Yeu, 44311 Nantes, France.
| | - Luiz L Mafra
- Centro de Estudos do Mar, Universidade Federal do Paraná, Cx. Postal 61, Pontal do Paraná, PR 83255-976, Brazil.
- Laboratoire Phycotoxines, IFREMER, Rue de l'Ile d'Yeu, 44311 Nantes, France.
| |
Collapse
|
15
|
Díaz-Asencio L, Vandersea M, Chomérat N, Fraga S, Clausing RJ, Litaker RW, Chamero-Lago D, Gómez-Batista M, Moreira-González A, Tester P, Alonso-Hernández C, Dechraoui Bottein MY. Morphology, toxicity and molecular characterization of Gambierdiscus spp. towards risk assessment of ciguatera in south central Cuba. Harmful Algae 2019; 86:119-127. [PMID: 31358271 DOI: 10.1016/j.hal.2019.05.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 02/20/2019] [Revised: 05/07/2019] [Accepted: 05/10/2019] [Indexed: 06/10/2023]
Abstract
Ciguatera poisoning is caused by the consumption of reef fish or shellfish that have accumulated ciguatoxins, neurotoxins produced by benthic dinoflagellates of the genera Gambierdiscus or Fukuyoa. Although ciguatera constitutes the primary cause of seafood intoxication in Cuba, very little information is available on the occurrence of ciguatoxins in the marine food web and the causative benthic dinoflagellate species. This study conducted on the south-central coast of Cuba reports the occurrence of Gambierdiscus and Fukuyoa genera and the associated benthic genera Ostreopsis and Prorocentrum. Gambierdiscus/Fukuyoa cells were present at low to moderate abundances depending on the site and month of sampling. This genus was notably higher on Dictyotaceae than on other macrophytes. PCR analysis of field-collected samples revealed the presence of six different Gambierdiscus and one Fukuyoa species, including G. caribaeus, G. carolinianus, G. carpenteri, G. belizeanus, F. ruetzleri, G. silvae, and Gambierdiscus sp. ribotype 2. Only Gambierdiscus excentricus was absent from the eight Gambierdiscus/Fukuyoa species known in the wider Caribbean region. Eleven clonal cultures were established and confirmed by PCR and SEM as being either G. carolinianus or G. caribaeus. Toxin production in each isolate was assessed by a radioligand receptor binding assay and found to be below the assay quantification limit. These novel findings augment the knowledge of the ciguatoxin-source dinoflagellates that are present in Cuba, however further studies are needed to better understand the correlation between their abundance, species-specific toxin production in the environment, and the risk for fish contamination, in order to develop better informed ciguatera risk management strategies.
Collapse
Affiliation(s)
- Lisbet Díaz-Asencio
- Centro de Estudios Ambientales de Cienfuegos (CEAC), Carretera a Castillo de Jagua Km 1 ½ Ciudad Nuclear AP, 59350, Cienfuegos, Cuba
| | - Mark Vandersea
- National Oceanic and Atmospheric Administration, National Ocean Service, National Centers for Coastal Ocean Science, Beaufort Laboratory, 101 Pivers Island Road, Beaufort, NC, 28516, USA
| | - Nicolas Chomérat
- Ifremer, Laboratory of Environment and Resources Western Britanny, Coastal Research Unit, Place de la Croix, B.P. 40537, 29185, Concarneau Cedex, France
| | - Santiago Fraga
- Centro Oceanográfico de Vigo, Instituto Español de Oceanografía (IEO), Subida a Radio Faro 50, 36390, Vigo, Spain
| | - Rachel J Clausing
- Environment Laboratories, Department of Nuclear Science and Application, International Atomic Energy Agency, 98000, Monaco
| | - R Wayne Litaker
- National Oceanic and Atmospheric Administration, National Ocean Service, National Centers for Coastal Ocean Science, Beaufort Laboratory, 101 Pivers Island Road, Beaufort, NC, 28516, USA
| | - Donaida Chamero-Lago
- Centro de Estudios Ambientales de Cienfuegos (CEAC), Carretera a Castillo de Jagua Km 1 ½ Ciudad Nuclear AP, 59350, Cienfuegos, Cuba
| | - Miguel Gómez-Batista
- Centro de Estudios Ambientales de Cienfuegos (CEAC), Carretera a Castillo de Jagua Km 1 ½ Ciudad Nuclear AP, 59350, Cienfuegos, Cuba
| | - Angel Moreira-González
- Centro de Estudios Ambientales de Cienfuegos (CEAC), Carretera a Castillo de Jagua Km 1 ½ Ciudad Nuclear AP, 59350, Cienfuegos, Cuba
| | - Patricia Tester
- Ocean Tester, LLC, 295 Dills Point Road, Beaufort, NC, 28516, USA
| | - Carlos Alonso-Hernández
- Centro de Estudios Ambientales de Cienfuegos (CEAC), Carretera a Castillo de Jagua Km 1 ½ Ciudad Nuclear AP, 59350, Cienfuegos, Cuba
| | | |
Collapse
|
16
|
Chomérat N, Bilien G, Derrien A, Henry K, Ung A, Viallon J, Darius HT, Mahana Iti Gatti C, Roué M, Hervé F, Réveillon D, Amzil Z, Chinain M. Ostreopsis lenticularis Y. Fukuyo (Dinophyceae, Gonyaulacales) from French Polynesia (South Pacific Ocean): A revisit of its morphology, molecular phylogeny and toxicity. Harmful Algae 2019; 84:95-111. [PMID: 31128817 DOI: 10.1016/j.hal.2019.02.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 12/14/2018] [Revised: 01/30/2019] [Accepted: 02/02/2019] [Indexed: 06/09/2023]
Abstract
To date, the genus Ostreopsis comprises eleven described species, of which seven are toxigenic and produce various compounds presenting a major threat to human and environmental health. The taxonomy of several of these species however remains controversial, as it was based mostly on morphological descriptions leading, in some cases, to ambiguous interpretations and even possible misidentifications. The species Ostreopsis lenticularis was first described by Y. Fukuyo from French Polynesia using light microscopy observations, but without genetic information associated. The present study aims at revisiting the morphology, molecular phylogeny and toxicity of O. lenticularis based on the analysis of 47 strains isolated from 4 distinct locales of French Polynesia, namely the Society, Australes, Marquesas and Gambier archipelagos. Observations in light, epifluorescence and field emission scanning electron microscopy of several of these strains analyzed revealed morphological features in perfect agreement with the original description of O. lenticularis. Cells were oval, not undulated, 60.5-94.4 μm in dorso-ventral length, 56.1-78.2 μm in width, and possessed a typical plate pattern with thecal plates showing two sizes of pores. Phylogenetic analyses inferred from the LSU rDNA and ITS-5.8S sequences revealed that the 47 strains correspond to a single genotype, clustering with a strong support with sequences previously ascribed to Ostreopsis sp. 5. Clonal cultures of O. lenticularis were also established and further tested for their toxicity using the neuroblastoma cell-based assay and LCMS/MS analyses. None of the 19 strains tested showed toxic activity on neuroblastoma cells, while LCMS/MS analyses performed on the strains from Tahiti Island (i.e. type locality) confirmed that palytoxin and related structural analogs were below the detection limit. These findings allow to clarify unambiguously the genetic identity of O. lenticularis while confirming previous results from the Western Pacific which indicate that this species shows no toxicity, thus stressing the need to reconsider its current classification within the group of toxic species.
Collapse
Affiliation(s)
- Nicolas Chomérat
- Ifremer, LER BO, Station of Marine Biology of Concarneau, Place de la Croix, F-29900, Concarneau, France.
| | - Gwenael Bilien
- Ifremer, LER BO, Station of Marine Biology of Concarneau, Place de la Croix, F-29900, Concarneau, France
| | - Amélie Derrien
- Ifremer, LER BO, Station of Marine Biology of Concarneau, Place de la Croix, F-29900, Concarneau, France
| | - Kévin Henry
- Institut Louis Malardé, Laboratoire des Micro-algues toxiques, UMR 241-EIO, PO box 30, 98713, Papeete, Tahiti, French Polynesia
| | - André Ung
- Institut Louis Malardé, Laboratoire des Micro-algues toxiques, UMR 241-EIO, PO box 30, 98713, Papeete, Tahiti, French Polynesia
| | - Jérôme Viallon
- Institut Louis Malardé, Laboratoire des Micro-algues toxiques, UMR 241-EIO, PO box 30, 98713, Papeete, Tahiti, French Polynesia
| | - Hélène Taiana Darius
- Institut Louis Malardé, Laboratoire des Micro-algues toxiques, UMR 241-EIO, PO box 30, 98713, Papeete, Tahiti, French Polynesia
| | - Clémence Mahana Iti Gatti
- Institut Louis Malardé, Laboratoire des Micro-algues toxiques, UMR 241-EIO, PO box 30, 98713, Papeete, Tahiti, French Polynesia
| | - Mélanie Roué
- Institut de Recherche pour le Développement (IRD), UMR 241-EIO, PO box 529, 98713, Papeete, Tahiti, French Polynesia
| | - Fabienne Hervé
- Ifremer, Phycotoxins Laboratory, BP 21105, F-44311, Nantes Cedex 3, France
| | - Damien Réveillon
- Ifremer, Phycotoxins Laboratory, BP 21105, F-44311, Nantes Cedex 3, France
| | - Zouher Amzil
- Ifremer, Phycotoxins Laboratory, BP 21105, F-44311, Nantes Cedex 3, France
| | - Mireille Chinain
- Institut Louis Malardé, Laboratoire des Micro-algues toxiques, UMR 241-EIO, PO box 30, 98713, Papeete, Tahiti, French Polynesia
| |
Collapse
|
17
|
Lim ZF, Luo Z, Lee LK, Hii KS, Teng ST, Chan LL, Chomérat N, Krock B, Gu H, Lim PT, Leaw CP. Taxonomy and toxicity of Prorocentrum from Perhentian Islands (Malaysia), with a description of a non-toxigenic species Prorocentrum malayense sp. nov. (Dinophyceae). Harmful Algae 2019; 83:95-108. [PMID: 31097256 DOI: 10.1016/j.hal.2019.01.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 11/20/2018] [Revised: 01/16/2019] [Accepted: 01/16/2019] [Indexed: 06/09/2023]
Abstract
Thirteen isolates of Prorocentrum species were established from the coral reefs of Perhentian Islands Marine Park, Malaysia and underwent morphological observations and molecular characterization. Six species were found: P. caipirignum, P. concavum, P. cf. emarginatum, P. lima, P. mexicanum and a new morphotype, herein designated as P. malayense sp. nov. Prorocentrum malayense, a species closely related to P. leve, P. cf. foraminosum, P. sp. aff. foraminossum, and P. concavum (Clade A sensu Chomérat et al. 2018), is distinguished from its congeners as having larger thecal pore size and a more deeply excavated V-shaped periflagellar area. Platelet arrangement in the periflagellar area of P. malayense is unique, with the presence of platelet 1a and 1b, platelet 2 being the most anterior platelet, and a broad calabash-shaped platelet 3. The species exhibits consistent genetic sequence divergences for the nuclear-encoded large subunit ribosomal RNA gene (LSU rDNA) and the second internal transcribed spacer (ITS2). The phylogenetic inferences further confirmed that it represents an independent lineage, closely related to species in Clade A sensu Chomérat et al. Pairwise comparison of ITS2 transcripts with its closest relatives revealed the presence of compensatory base changes (CBCs). Toxicity analysis showed detectable levels of okadaic acid in P. lima (1.0-1.6 pg cell-1) and P. caipirignum (3.1 pg cell-1); this is the first report of toxigenic P. caipirignum in the Southeast Asian region. Other Prorocentrum species tested, including the new species, however, were below the detection limit.
Collapse
Affiliation(s)
- Zhen Fei Lim
- Bachok Marine Research Station, Institute of Ocean and Earth Sciences, University of Malaya, 16310 Bachok, Kelantan, Malaysia
| | - Zhaohe Luo
- Third Institute of Oceanography, SOA, Xiamen, 361005, China
| | - Li Keat Lee
- Bachok Marine Research Station, Institute of Ocean and Earth Sciences, University of Malaya, 16310 Bachok, Kelantan, Malaysia
| | - Kieng Soon Hii
- Bachok Marine Research Station, Institute of Ocean and Earth Sciences, University of Malaya, 16310 Bachok, Kelantan, Malaysia
| | - Sing Tung Teng
- Faculty of Resource Science and Technology, Universiti Malaysia Sarawak, 94300, Kota Samarahan, Sarawak, Malaysia
| | - Leo Lai Chan
- State Key Laboratory in Marine Pollution, Department of Biomedical Sciences, City University of Hong Kong, Hong Kong, 999077, China
| | - Nicolas Chomérat
- IFREMER, Department ODE, Laboratory Environment and Resources Bretagne Occidentale, Station de Biologie Marine, Place de la Croix, 29900, Concarneau, France
| | - Bernd Krock
- Alfred Wegener Institut-Helmholtz Zentrum für Polar- und Meeresforschung, Am Handelshafen 12, D-27570, Bremerhaven, Germany
| | - Haifeng Gu
- Third Institute of Oceanography, SOA, Xiamen, 361005, China
| | - Po Teen Lim
- Bachok Marine Research Station, Institute of Ocean and Earth Sciences, University of Malaya, 16310 Bachok, Kelantan, Malaysia
| | - Chui Pin Leaw
- Bachok Marine Research Station, Institute of Ocean and Earth Sciences, University of Malaya, 16310 Bachok, Kelantan, Malaysia.
| |
Collapse
|
18
|
Saburova M, Chomérat N. Laciniporus arabicus gen. et sp. nov. (Dinophyceae, Peridiniales), a new thecate, marine, sand-dwelling dinoflagellate from the northern Indian Ocean (Arabian Sea) 1. J Phycol 2019; 55:84-103. [PMID: 30179255 DOI: 10.1111/jpy.12783] [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: 09/29/2017] [Accepted: 08/14/2018] [Indexed: 06/08/2023]
Abstract
A new thecate, photosynthetic, sand-dwelling marine dinoflagellate, Laciniporus arabicus gen. et sp. nov., is described from the subtidal sediments of the Omani coast in the Arabian Sea, northern Indian Ocean, based on detailed morphological and molecular data. Cells of L. arabicus are small (16.2-30.1 μm long and 13.1-23.2 μm wide), dorsoventrally compressed, with a small apical flap-shaped projection pointing to the left. The thecal plate pattern is distinguished by minute first precingular plate and sulcus, which extends into the epitheca, with large anterior and right sulcal plates. The Kofoidian thecal tabulation is Po, X, 4', 2a, 7'', 6c, 6s, 5''', 2''''. Morphologically, the revealed plate pattern has an affinity to the Peridiniales, and LSU rDNA based phylogenetic analyses placed L. arabicus within the Thoracosphaeraceae, close to calcareous-cyst producing scrippsielloids, predatory pfiesteriaceans, and photosynthetic freshwater peridinioids Chimonodinium lomnickii and Apocalathium spp. However, the thecal plate arrangement of L. arabicus differs noticeably from any currently described dinoflagellates, and the species stands out from closely related taxa by extensive differences in physiology and ecology.
Collapse
Affiliation(s)
- Maria Saburova
- Ecosystem-Based Management of Marine Resources Program, Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, P.O. BOX 1638, Salmiya, 22017, Kuwait
| | - Nicolas Chomérat
- IFREMER, LER BO, Station de Biologie Marine, Place de la Croix, F-29900, Concarneau, France
| |
Collapse
|
19
|
Mertens KN, Gu H, Pospelova V, Chomérat N, Nézan E, Gurdebeke PR, Bogus K, Vrielinck H, Rumebe M, Meteigner C. First record of resting cysts of the benthic dinoflagellate Prorocentrum leve in a natural reservoir in Gujan-Mestras, Gironde, France. J Phycol 2017; 53:1193-1205. [PMID: 28865145 DOI: 10.1111/jpy.12582] [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: 04/27/2017] [Accepted: 07/19/2017] [Indexed: 06/07/2023]
Abstract
The resting cysts of the benthic dinoflagellate Prorocentrum leve from a natural reservoir in Gujan-Mestras (Gironde, France) were described in this study. The incubated urn-shaped cysts gave rise to cells of P. leve. Morphological observations through light microscopy and scanning electron microscopy, particularly of the periflagellar platelets, combined with large subunit ribosomal DNA sequences obtained through single-cell analysis confirm their affinity to the species P. leve. The cysts were characterized by a specific shape and the presence of an anterior plug. This is the first conclusive evidence for fossilizable resting stages within the Prorocentrales, one of the major orders within the Dinophyceae. Palynological treatments show that the cysts and endospores withstand hydrochloric and hydrofluoric acids. Micro-Fourier transform infrared analysis on single specimens suggests that the composition of the endospore is cellulosic and the cyst wall a more robust, noncellulosic β-glucan. The spectra overall are similar to other published spectra of resting cysts from autotrophic, planktonic dinoflagellates.
Collapse
Affiliation(s)
- Kenneth Neil Mertens
- Ifremer, LER BO, Station de Biologie Marine, Place de la Croix, BP40537, F-29185, Concarneau Cedex, France
| | - Haifeng Gu
- Third Institute of Oceanography, SOA, Xiamen, 361005, China
| | - Vera Pospelova
- School of Earth and Ocean Sciences, University of Victoria, PO Box 1700, STN CSC, Victoria, British Columbia, Canada, V8W 2Y2
| | - Nicolas Chomérat
- Ifremer, LER BO, Station de Biologie Marine, Place de la Croix, BP40537, F-29185, Concarneau Cedex, France
| | - Elisabeth Nézan
- Ifremer, LER BO, Station de Biologie Marine, Place de la Croix, BP40537, F-29185, Concarneau Cedex, France
| | | | - Kara Bogus
- International Ocean Discovery Program, Texas A&M University, College Station, Texas, 77845, USA
| | - Henk Vrielinck
- Department of Solid State Sciences, Ghent University, Krijgslaan 281, S1, B-9000, Gent, Belgium
| | - Myriam Rumebe
- Ifremer, LER AR, Station d'Arcachon, Quai du Cdt Silhouette, 33120, Arcachon, France
| | - Claire Meteigner
- Ifremer, LER AR, Station d'Arcachon, Quai du Cdt Silhouette, 33120, Arcachon, France
| |
Collapse
|
20
|
Luo Z, Krock B, Mertens KN, Nézan E, Chomérat N, Bilien G, Tillmann U, Gu H. Adding new pieces to the Azadinium (Dinophyceae) diversity and biogeography puzzle: Non-toxigenic Azadinium zhuanum sp. nov. from China, toxigenic A. poporum from the Mediterranean, and a non-toxigenic A. dalianense from the French Atlantic. Harmful Algae 2017; 66:65-78. [PMID: 28602255 DOI: 10.1016/j.hal.2017.05.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [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: 11/12/2016] [Revised: 05/02/2017] [Accepted: 05/02/2017] [Indexed: 06/07/2023]
Abstract
The marine planktonic dinophyceaen genus Azadinium is a primary source of azaspiracids, but due to their small size its diversity may be underestimated and information on its biogeography is still limited. A new Azadinium species, A. zhuanum was obtained from the East China Sea and Yellow Sea of China by incubating surface sediments. Five strains were established by isolating single germinated cells and their morphology was examined with light microscopy and scanning electron microscopy. Azadinium zhuanum was characterized by a plate pattern of Po, cp, X, 4', 2a, 6'', 6C, 5S, 6''', 2'''', by a distinct ventral pore at the junction of Po, the first and fourth apical plates, and a conspicuous antapical spine. Moreover, Azadinium poporum was obtained for the first time from the Mediterranean by incubating surface sediment collected from Diana Lagoon (Corsica) and a new strain of Azadinium dalianense was isolated from the French Atlantic. The morphology of both strains was examined. Small subunit ribosomal DNA (SSU rDNA), large subunit ribosomal DNA (LSU rDNA) and internal transcribed spacer (ITS) sequences were obtained from cultured strains. In addition, LSU sequences were obtained by single cell sequencing of two presumable A. poporum cells collected from the French Atlantic. Molecular phylogeny based on concatenated SSU, LSU and ITS sequences revealed that A. zhuanum was closest to A. polongum. French A. poporum from Corsica (Mediterranean) and from the Atlantic showed some genetic differences but were nested within one of the A. poporum ribotypes together with other European strains. Azadinium dalianense from France together with the type strain of the species from China comprised a well resolved clade now consisting of two ribotypes. Azaspiracid profiles were analyzed for the cultured Azadinium strains using LC-MS/MS and demonstrate that the Mediterranean A. poporum strain produced AZA-2 and AZA-2 phosphate with an amount of 0.44fgcell-1. Azadinium zhuanum and A. dalianense did not produce detectable AZA. Results of the present study support the view of a high diversity and wide distribution of species belonging to Azadinium. The first record of AZA-2 producing A. poporum from the Mediterranean suggests that this species may be responsible for azaspiracid contaminations in shellfish from the Mediterranean Sea.
Collapse
Affiliation(s)
- Zhaohe Luo
- Third Institute of Oceanography, SOA, Xiamen 361005, China
| | - Bernd Krock
- Alfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, D-27570 Bremerhaven, Germany
| | - Kenneth Neil Mertens
- Ifremer, LER BO, Station de Biologie Marine, Place de la Croix, BP40537, F-29185 Concarneau Cedex, France
| | - Elisabeth Nézan
- Ifremer, LER BO, Station de Biologie Marine, Place de la Croix, BP40537, F-29185 Concarneau Cedex, France
| | - Nicolas Chomérat
- Ifremer, LER BO, Station de Biologie Marine, Place de la Croix, BP40537, F-29185 Concarneau Cedex, France
| | - Gwenael Bilien
- Ifremer, LER BO, Station de Biologie Marine, Place de la Croix, BP40537, F-29185 Concarneau Cedex, France
| | - Urban Tillmann
- Alfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, D-27570 Bremerhaven, Germany.
| | - Haifeng Gu
- Third Institute of Oceanography, SOA, Xiamen 361005, China.
| |
Collapse
|
21
|
Lemonnier H, Lantoine F, Courties C, Guillebault D, Nézan E, Chomérat N, Escoubeyrou K, Galinié C, Blockmans B, Laugier T. Dynamics of phytoplankton communities in eutrophying tropical shrimp ponds affected by vibriosis. Mar Pollut Bull 2016; 110:449-459. [PMID: 27334725 DOI: 10.1016/j.marpolbul.2016.06.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 03/23/2016] [Revised: 05/30/2016] [Accepted: 06/02/2016] [Indexed: 06/06/2023]
Abstract
Tropical shrimp aquaculture systems in New Caledonia regularly face major crises resulting from outbreaks of Vibrio infections. Ponds are highly dynamic and challenging environments and display a wide range of trophic conditions. In farms affected by vibriosis, phytoplankton biomass and composition are highly variable. These conditions may promote the development of harmful algae increasing shrimp susceptibility to bacterial infections. Phytoplankton compartment before and during mortality outbreaks was monitored at a shrimp farm that has been regularly and highly impacted by these diseases. Combining information from flow cytometry, microscopy, pigment and phylogenetic analysis, the presence of Picocyanobacteria, Prasinophyceae and Diatomophyceae were detected as dominant phytoplankton groups and Cryptophyceae, Prymnesiophyceae and Dinophyceae as minor components. At the onset of the first shrimp mortalities, Bacillariophyceae increased while Cyanobacteria, Prymnesiophyceae and Dinophyceae decreased in the water column, followed by proliferation of Prasinophyceae. Several taxa were identified as potential harmful algae (Cyanobacteria, dinoflagellates and Phaeocystis).
Collapse
Affiliation(s)
- Hugues Lemonnier
- IFREMER LEAD, BP 2059, 98846 Nouméa cedex, New Caledonia, France.
| | - François Lantoine
- Sorbonne Universités, UPMC Univ Paris 06, UMR 8222, LECOB, Observatoire Océanologique, F-66650 Banyuls/mer, France
| | - Claude Courties
- Sorbonne Universités, UPMC Univ Paris 06, UMR 8222, LECOB, Observatoire Océanologique, F-66650 Banyuls/mer, France
| | - Delphine Guillebault
- Sorbonne Universités, UPMC Univ Paris 06, UMR 8222, LECOB, Observatoire Océanologique, F-66650 Banyuls/mer, France; Microbia Environnement, Observatoire Océanologique de Banyuls, 66650 Banyuls-sur mer, France
| | - Elizabeth Nézan
- IFREMER, LER BO, Station de Biologie Marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, France
| | - Nicolas Chomérat
- IFREMER, LER BO, Station de Biologie Marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, France
| | - Karine Escoubeyrou
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Plate-forme Bio2Mar, Observatoire Océanologique, F-66650 Banyuls/Mer, France
| | - Christian Galinié
- GFA, Groupement des Fermes Aquacoles, ORPHELINAT, 1 rue Dame Lechanteur, 98800 Nouméa cedex, New Caledonia, France
| | - Bernard Blockmans
- GFA, Groupement des Fermes Aquacoles, ORPHELINAT, 1 rue Dame Lechanteur, 98800 Nouméa cedex, New Caledonia, France
| | - Thierry Laugier
- IFREMER LEAD, BP 2059, 98846 Nouméa cedex, New Caledonia, France
| |
Collapse
|
22
|
Le Gac M, Metegnier G, Chomérat N, Malestroit P, Quéré J, Bouchez O, Siano R, Destombe C, Guillou L, Chapelle A. Evolutionary processes and cellular functions underlying divergence in Alexandrium minutum. Mol Ecol 2016; 25:5129-5143. [DOI: 10.1111/mec.13815] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 08/04/2016] [Accepted: 08/04/2016] [Indexed: 01/07/2023]
Affiliation(s)
| | - Gabriel Metegnier
- Ifremer; DYNECO PELAGOS; 29280 Plouzané France
- CNRS, PUCCh, UACH, UMI 3614; Evolutionary Biology and Ecology of Algae; Station Biologique de Roscoff; Université Pierre et Marie Curie - Paris 6; Sorbonne Universités; Place Georges Teissier, CS90074 29688 Roscoff Cedex France
| | | | | | | | - Olivier Bouchez
- GeT PlaGe; Genotoul; INRA Auzeville; Castanet Tolosan France
| | | | - Christophe Destombe
- CNRS, PUCCh, UACH, UMI 3614; Evolutionary Biology and Ecology of Algae; Station Biologique de Roscoff; Université Pierre et Marie Curie - Paris 6; Sorbonne Universités; Place Georges Teissier, CS90074 29688 Roscoff Cedex France
| | - Laure Guillou
- CNRS, UMR 7144; Station Biologique de Roscoff; Université Pierre et Marie Curie - Paris 6; Sorbonne Universités; Place Georges Teissier CS90074 29688 Roscoff Cedex France
| | | |
Collapse
|
23
|
Abadie E, Muguet A, Berteaux T, Chomérat N, Hess P, Roque D'OrbCastel E, Masseret E, Laabir M. Toxin and Growth Responses of the Neurotoxic Dinoflagellate Vulcanodinium rugosum to Varying Temperature and Salinity. Toxins (Basel) 2016; 8:toxins8050136. [PMID: 27164144 PMCID: PMC4885051 DOI: 10.3390/toxins8050136] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 04/17/2016] [Accepted: 04/18/2016] [Indexed: 11/16/2022] Open
Abstract
Vulcanodinium rugosum, a recently described species, produces pinnatoxins. The IFR-VRU-01 strain, isolated from a French Mediterranean lagoon in 2010 and identified as the causative dinoflagellate contaminating mussels in the Ingril Lagoon (French Mediterranean) with pinnatoxin-G, was grown in an enriched natural seawater medium. We tested the effect of temperature and salinity on growth, pinnatoxin-G production and chlorophyll a levels of this dinoflagellate. These factors were tested in combinations of five temperatures (15, 20, 25, 30 and 35 °C) and five salinities (20, 25, 30, 35 and 40) at an irradiance of 100 µmol photon m(-2) s(-1). V. rugosum can grow at temperatures and salinities ranging from 20 °C to 30 °C and 20 to 40, respectively. The optimal combination for growth (0.39 ± 0.11 d(-1)) was a temperature of 25 °C and a salinity of 40. Results suggest that V. rugosum is euryhaline and thermophile which could explain why this dinoflagellate develops in situ only from June to September. V. rugosum growth rate and pinnatoxin-G production were highest at temperatures ranging between 25 and 30 °C. This suggests that the dinoflagellate may give rise to extensive blooms in the coming decades caused by the climate change-related increases in temperature expected in the Mediterranean coasts.
Collapse
Affiliation(s)
- Eric Abadie
- Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Laboratoire Environnement Ressources du Languedoc-Roussillon, Centre for Marine Biodiversity, Exploitation and Conservation (MARBEC), CS30171 Sète Cedex 03 34200, France.
| | - Alexia Muguet
- Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Laboratoire Environnement Ressources du Languedoc-Roussillon, Centre for Marine Biodiversity, Exploitation and Conservation (MARBEC), CS30171 Sète Cedex 03 34200, France.
| | - Tom Berteaux
- Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Laboratoire Environnement Ressources du Languedoc-Roussillon, Centre for Marine Biodiversity, Exploitation and Conservation (MARBEC), CS30171 Sète Cedex 03 34200, France.
| | - Nicolas Chomérat
- Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Laboratoire Environnement Ressources de Bretagne Occidentale, Place de la Croix, Concarneau 29900, France.
| | - Philipp Hess
- Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Laboratoire Phycotoxines (DYNECO/PHYC), Rue de l'Ile d'Yeu, BP 21105 Nantes Cedex 3 44311, France.
| | - Emmanuelle Roque D'OrbCastel
- Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Laboratoire Environnement Ressources du Languedoc-Roussillon, Centre for Marine Biodiversity, Exploitation and Conservation (MARBEC), CS30171 Sète Cedex 03 34200, France.
| | - Estelle Masseret
- Center for Marine Biodiversity, Exploitation and Conservation (MARBEC), Université de Montpellier (UM), Institut de Recherche pour le Développement (IRD), Ifremer, Centre National de la Recherche Scientifique (CNRS), Place E. Bataillon, CC93, Montpellier Cedex 5 34095, France.
| | - Mohamed Laabir
- Center for Marine Biodiversity, Exploitation and Conservation (MARBEC), Université de Montpellier (UM), Institut de Recherche pour le Développement (IRD), Ifremer, Centre National de la Recherche Scientifique (CNRS), Place E. Bataillon, CC93, Montpellier Cedex 5 34095, France.
| |
Collapse
|
24
|
Zmerli Triki H, Laabir M, Moeller P, Chomérat N, Kéfi Daly-Yahia O. First report of goniodomin A production by the dinoflagellate Alexandrium pseudogonyaulax developing in southern Mediterranean (Bizerte Lagoon, Tunisia). Toxicon 2016; 111:91-9. [DOI: 10.1016/j.toxicon.2015.12.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 11/23/2015] [Accepted: 12/28/2015] [Indexed: 11/30/2022]
|
25
|
Fertouna-Bellakhal M, Dhib A, Fathalli A, Bellakhal M, Chomérat N, Masseret E, Laabir M, Turki S, Aleya L. Alexandrium pacificum Litaker sp. nov (Group IV): Resting cyst distribution and toxin profile of vegetative cells in Bizerte Lagoon (Tunisia, Southern Mediterranean Sea). Harmful Algae 2015; 48:69-82. [PMID: 29724478 DOI: 10.1016/j.hal.2015.07.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 07/15/2015] [Accepted: 07/22/2015] [Indexed: 06/08/2023]
Abstract
A high spatial resolution sampling of Alexandrium pacificum cysts, along with sediment characteristics (% H2O, % organic matter (OM), granulometry), vegetative cell abundance and environmental factors were investigated at 123 study stations in Bizerte Lagoon (Tunisia). Morphological examination and ribotyping of cells obtained from a culture called ABZ1 obtained from a cyst isolated in lagoon sediment confirmed that the species was A. pacificum. The toxin profile from the ABZ1 culture harvested during exponential growth phase was simple and composed of the N-sulfocarbamoyl toxins C1 (9.82pgtoxincell-1), the GTX6 (3.26pgtoxincell-1) and the carbamoyl toxin Neo-STX (0.38pgtoxincell-1). The latter represented only 2.8% of the total toxins in this strain. High abundance of A. pacificum cysts correlated with enhanced percentages of water and organic matter in the sediment. In addition, sediment fractions of less than 63μm were examined as a favorable potential seedbed for initiation of future blooms and outbreaks of A. pacificum in the lagoon. A significant difference in the cyst distribution pattern was recorded among the lagoon's different zones, with the higher cyst abundance occurring in the inner waters. Also, no correlation due to the specific hydrodynamics of the lagoon was observed in the spatial distribution of A. pacificum cysts and vegetative cells.
Collapse
Affiliation(s)
- Mouna Fertouna-Bellakhal
- Université de Bourgogne Franche-Comté, Laboratoire de Chrono-Environnement, UMR CNRS, 6249 Besançon, France; Institut Supérieur de Pêche et d'Aquaculture de Bizerte, Unité de recherche, Exploitation des Milieux Aquatiques, Errimel, B.P.15, 7080 Bizerte, Tunisie; Institut National des Sciences et Technologies de la Mer (INSTM), Laboratoire Milieu Marin, Centre la Goulette, La Goulette, Tunisie; Faculty of Sciences of Bizerte, FSB, Zarzouna, 7021 Bizerte, Tunisie
| | - Amel Dhib
- Université de Bourgogne Franche-Comté, Laboratoire de Chrono-Environnement, UMR CNRS, 6249 Besançon, France; Institut National des Sciences et Technologies de la Mer (INSTM), Laboratoire Milieu Marin, Centre la Goulette, La Goulette, Tunisie
| | - Afef Fathalli
- Institut Supérieur de Pêche et d'Aquaculture de Bizerte, Unité de recherche, Exploitation des Milieux Aquatiques, Errimel, B.P.15, 7080 Bizerte, Tunisie
| | - Meher Bellakhal
- Institut Supérieur de Pêche et d'Aquaculture de Bizerte, Unité de recherche, Exploitation des Milieux Aquatiques, Errimel, B.P.15, 7080 Bizerte, Tunisie
| | - Nicolas Chomérat
- IFREMER-Station de Biologie Marine, Place de la Croix, 29900 Concarneau, France
| | - Estelle Masseret
- UMR MARBEC 9190 IRD-Ifremer-UM-CNRS, Université de Montpellier, cc93, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - Mohamed Laabir
- UMR MARBEC 9190 IRD-Ifremer-UM-CNRS, Université de Montpellier, cc93, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - Souad Turki
- Institut National des Sciences et Technologies de la Mer (INSTM), Laboratoire Milieu Marin, Centre la Goulette, La Goulette, Tunisie
| | - Lotfi Aleya
- Université de Bourgogne Franche-Comté, Laboratoire de Chrono-Environnement, UMR CNRS, 6249 Besançon, France.
| |
Collapse
|
26
|
Saburova M, Chomérat N. Ailadinium reticulatum gen. et sp. nov. (Dinophyceae), a New Thecate, Marine, Sand-Dwelling Dinoflagellate from the Northern Red Sea. J Phycol 2014; 50:1120-1136. [PMID: 26988792 DOI: 10.1111/jpy.12244] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 08/28/2014] [Indexed: 06/05/2023]
Abstract
A new photosynthetic, sand-dwelling marine dinoflagellate, Ailadinium reticulatum gen. et sp. nov., is described from the Jordanian coast in the Gulf of Aqaba, northern Red Sea, based on detailed morphological and molecular data. A. reticulatum is a large (53-61 μm long and 38-48 μm wide), dorsoventrally compressed species, with the epitheca smaller than the hypotheca. The theca of this new species is thick and peculiarly ornamented with round to polygonal depressions forming a foveate-reticulate thecal surface structure. The Kofoidian thecal tabulation is APC (Po, cp), 4', 2a, 6'', 6c, 4s, 6''', 1p, 1'''' or alternatively it can be interpreted as APC, 4', 2a, 6'', 6c, 4s, 6''', 2''''. The plate pattern of A. reticulatum is noticeably different from described dinoflagellate genera. Phylogenetic analyses based on the SSU and LSU rDNA genes did not show any supported affinities with currently known thecate dinoflagellates.
Collapse
Affiliation(s)
- Maria Saburova
- Institute of Biology of the Southern Seas, Pr. Nakhimova, 2, Sevastopol, 99011, Ukraine
| | - Nicolas Chomérat
- IFREMER, LER BO, Station de Biologie Marine, Place de la Croix, Concarneau, F-29900, France
| |
Collapse
|
27
|
Brissard C, Herrenknecht C, Séchet V, Hervé F, Pisapia F, Harcouet J, Lémée R, Chomérat N, Hess P, Amzil Z. Complex toxin profile of French Mediterranean Ostreopsis cf. ovata strains, seafood accumulation and ovatoxins prepurification. Mar Drugs 2014; 12:2851-76. [PMID: 24828292 PMCID: PMC4052321 DOI: 10.3390/md12052851] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 04/15/2014] [Accepted: 04/24/2014] [Indexed: 12/13/2022] Open
Abstract
Ostreopsis cf. ovata produces palytoxin analogues including ovatoxins (OVTXs) and a putative palytoxin (p-PLTX), which can accumulate in marine organisms and may possibly lead to food intoxication. However, purified ovatoxins are not widely available and their toxicities are still unknown. The aim of this study was to improve understanding of the ecophysiology of Ostreopsis cf. ovata and its toxin production as well as to optimize the purification process for ovatoxin. During Ostreopsis blooms in 2011 and 2012 in Villefranche-sur-Mer (France, NW Mediterranean Sea), microalgae epiphytic cells and marine organisms were collected and analyzed both by LC-MS/MS and hemolysis assay. Results obtained with these two methods were comparable, suggesting ovatoxins have hemolytic properties. An average of 223 μg·kg-1 of palytoxin equivalent of whole flesh was found, thus exceeding the threshold of 30 μg·kg-1 in shellfish recommended by the European Food Safety Authority (EFSA). Ostreopsis cells showed the same toxin profile both in situ and in laboratory culture, with ovatoxin-a (OVTX-a) being the most abundant analogue (~50%), followed by OVTX-b (~15%), p-PLTX (12%), OVTX-d (8%), OVTX-c (5%) and OVTX-e (4%). Ostreopsis cf. ovata produced up to 2 g of biomass per L of culture, with a maximum concentration of 300 pg PLTX equivalent cell-1. Thus, an approximate amount of 10 mg of PLTX-group toxins may be produced with 10 L of this strain. Toxin extracts obtained from collected biomass were purified using different techniques such as liquid-liquid partition or size exclusion. Among these methods, open-column chromatography with Sephadex LH20 phase yielded the best results with a cleanup efficiency of 93% and recovery of about 85%, representing an increase of toxin percentage by 13 fold. Hence, this purification step should be incorporated into future isolation exercises.
Collapse
Affiliation(s)
- Charline Brissard
- Ifremer, Phycotoxins Laboratory, rue de l'Ile d'Yeu, BP 21105, Nantes F-44311, France.
| | - Christine Herrenknecht
- Université Nantes Angers Le Mans (LUNAM), University of Nantes, MMS EA2160, Pharmacy Faculty, 9 rue Bias, Nantes F-44035, France.
| | - Véronique Séchet
- Ifremer, Phycotoxins Laboratory, rue de l'Ile d'Yeu, BP 21105, Nantes F-44311, France.
| | - Fabienne Hervé
- Ifremer, Phycotoxins Laboratory, rue de l'Ile d'Yeu, BP 21105, Nantes F-44311, France.
| | - Francesco Pisapia
- Ifremer, Phycotoxins Laboratory, rue de l'Ile d'Yeu, BP 21105, Nantes F-44311, France.
| | - Jocelyn Harcouet
- Ifremer, Phycotoxins Laboratory, rue de l'Ile d'Yeu, BP 21105, Nantes F-44311, France.
| | - Rodolphe Lémée
- Sorbonne Universités, UPMC Univ Paris 06, UMR 7093, LOV, Observatoire Océanologique, Villefranche/mer F-06230, France.
| | - Nicolas Chomérat
- Ifremer, Laboratoire Environnement Ressource de Bretagne Occitentale (LER-BO), Marine Biological Station, BP 40537, Concarneau F-29185, France.
| | - Philipp Hess
- Ifremer, Phycotoxins Laboratory, rue de l'Ile d'Yeu, BP 21105, Nantes F-44311, France.
| | - Zouher Amzil
- Ifremer, Phycotoxins Laboratory, rue de l'Ile d'Yeu, BP 21105, Nantes F-44311, France.
| |
Collapse
|
28
|
Nézan E, Tillmann U, Bilien GL, Boulben S, Chèze K, Zentz F, Salas R, Chomérat N. TAXONOMIC REVISION OF THE DINOFLAGELLATE AMPHIDOMA CAUDATA: TRANSFER TO THE GENUS AZADINIUM (DINOPHYCEAE) AND PROPOSAL OF TWO VARIETIES, BASED ON MORPHOLOGICAL AND MOLECULAR PHYLOGENETIC ANALYSES(1). J Phycol 2012; 48:925-939. [PMID: 27009003 DOI: 10.1111/j.1529-8817.2012.01159.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The systematic position of Amphidoma caudata Halldal within the genus Amphidoma has remained uncertain as a result of its plate formula and the absence of molecular phylogenetic data. Also, this thecate dinoflagellate taxon has been used to designate two distinct morphotypes. The present study aims to clarify the generic affiliation of Amphidoma caudata and the taxonomic value of two different morphotypes M1 and M2. The new examination of the plate formula using SEM showed that it was the same for both morphotypes and that it corresponded to the tabulation of the recent erected genus Azadinium Elbrächter et Tillmann. Morphometric analysis, using cell size, length of apical projection in conjunction with the cell length, and the ratio of horn and spine showed that M1 and M2 formed two distinct groups. These results were supported by a molecular approach, revealing notable differences in the sequences of LSU rDNA and ITS region between these two morphotypes. Phylogenetic analyses inferred either from LSU and combined SSU, ITS region and COI data positioned M1 and M2 in a sister cluster of Azadinium species while Amphidoma languida Tillmann, Salas et Elbrächter, the only species of Amphidoma for which sequence data were available, was situated in a basal position of the Azadinium clade. Thus, we propose the transfer of Amphidoma caudata to the genus Azadinium and, consequently, the rehabilitation of the original tabulation of the genus Amphidoma Stein. To discriminate the two morphotypes, we propose a rank of variety with the following designations: Azadinium caudatum var. caudatum and Azadinium caudatum var. margalefii.
Collapse
Affiliation(s)
- Elisabeth Nézan
- Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, FranceAlfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, D-27570 Bremerhaven, Germany Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, FranceMuséum National d'Histoire Naturelle, Station de Biologie Marine, B.P. 225, 29182 Concarneau Cedex, FranceUniversité de Bretagne Occidentale, Institut Universitaire de Technologie, 2 rue de l'Université, 29334 Quimper Cedex, FranceMarine Institute, Rinville Oranmore, Galway, Ireland Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, France
| | - Urban Tillmann
- Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, FranceAlfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, D-27570 Bremerhaven, Germany Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, FranceMuséum National d'Histoire Naturelle, Station de Biologie Marine, B.P. 225, 29182 Concarneau Cedex, FranceUniversité de Bretagne Occidentale, Institut Universitaire de Technologie, 2 rue de l'Université, 29334 Quimper Cedex, FranceMarine Institute, Rinville Oranmore, Galway, Ireland Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, France
| | - Gwenae L Bilien
- Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, FranceAlfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, D-27570 Bremerhaven, Germany Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, FranceMuséum National d'Histoire Naturelle, Station de Biologie Marine, B.P. 225, 29182 Concarneau Cedex, FranceUniversité de Bretagne Occidentale, Institut Universitaire de Technologie, 2 rue de l'Université, 29334 Quimper Cedex, FranceMarine Institute, Rinville Oranmore, Galway, Ireland Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, France
| | - Sylviane Boulben
- Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, FranceAlfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, D-27570 Bremerhaven, Germany Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, FranceMuséum National d'Histoire Naturelle, Station de Biologie Marine, B.P. 225, 29182 Concarneau Cedex, FranceUniversité de Bretagne Occidentale, Institut Universitaire de Technologie, 2 rue de l'Université, 29334 Quimper Cedex, FranceMarine Institute, Rinville Oranmore, Galway, Ireland Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, France
| | - Karine Chèze
- Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, FranceAlfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, D-27570 Bremerhaven, Germany Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, FranceMuséum National d'Histoire Naturelle, Station de Biologie Marine, B.P. 225, 29182 Concarneau Cedex, FranceUniversité de Bretagne Occidentale, Institut Universitaire de Technologie, 2 rue de l'Université, 29334 Quimper Cedex, FranceMarine Institute, Rinville Oranmore, Galway, Ireland Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, France
| | - Frédéric Zentz
- Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, FranceAlfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, D-27570 Bremerhaven, Germany Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, FranceMuséum National d'Histoire Naturelle, Station de Biologie Marine, B.P. 225, 29182 Concarneau Cedex, FranceUniversité de Bretagne Occidentale, Institut Universitaire de Technologie, 2 rue de l'Université, 29334 Quimper Cedex, FranceMarine Institute, Rinville Oranmore, Galway, Ireland Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, France
| | - Rafael Salas
- Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, FranceAlfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, D-27570 Bremerhaven, Germany Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, FranceMuséum National d'Histoire Naturelle, Station de Biologie Marine, B.P. 225, 29182 Concarneau Cedex, FranceUniversité de Bretagne Occidentale, Institut Universitaire de Technologie, 2 rue de l'Université, 29334 Quimper Cedex, FranceMarine Institute, Rinville Oranmore, Galway, Ireland Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, France
| | - Nicolas Chomérat
- Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, FranceAlfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, D-27570 Bremerhaven, Germany Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, FranceMuséum National d'Histoire Naturelle, Station de Biologie Marine, B.P. 225, 29182 Concarneau Cedex, FranceUniversité de Bretagne Occidentale, Institut Universitaire de Technologie, 2 rue de l'Université, 29334 Quimper Cedex, FranceMarine Institute, Rinville Oranmore, Galway, Ireland Ifremer, Laboratoire Environnement et Ressources Finistère-Bretagne Nord, Station de biologie marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, France
| |
Collapse
|
29
|
Chomérat N, Saburova M, Bilien G, Al-Yamani F. PROROCENTRUM BIMACULATUM SP. NOV. (DINOPHYCEAE, PROROCENTRALES), A NEW BENTHIC DINOFLAGELLATE SPECIES FROM KUWAIT (ARABIAN GULF)(1). J Phycol 2012; 48:211-221. [PMID: 27009665 DOI: 10.1111/j.1529-8817.2011.01102.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A new benthic dinoflagellate species, Prorocentrum bimaculatum sp. nov., is studied from Kuwait's marine sediments, based on detailed morphological and molecular data. Cells are large, oblong oval in shape. They are 49.9-55.3 μm long and 38.4-43.2 μm wide. The ornamentation of this new species is peculiar, and characterized by smooth valves with large pores (0.32-0.50 μm) scattered on their surface, except in two circular patches of ∼15 μm in diameter, devoid of ornamentation and located on both sides of the valve centers. The periflagellar area is widely triangular, located in a moderate excavation of the right valve, and comprises nine platelets. The intercalary band of P. bimaculatum is smooth. The molecular phylogenetic position of this new taxon was inferred from SSU and LSU rDNA genes. In both phylogenetic analyses, P. bimaculatum branched with high support with Prorocentrum consutum and formed a clade sister to the one including P. lima and related species such as P. arenarium, P. belizeanum, P. hoffmannianum, and P. maculosum. From the phylogenetic study, since most species related to P. bimaculatum are known for their toxic effects and production of okadaic acid, this new species can be considered as a potential toxin producer, but this has to be analyzed.
Collapse
Affiliation(s)
- Nicolas Chomérat
- IFREMER, Station de Concarneau, place de la Croix, 29900 Concarneau, France Institute of Biology of the Southern Seas, Pr. Nakhimova, 2, 99011, Sevastopol, Ukraine Kuwait Institute for Scientific Research (KISR), Oceanography and Fisheries Research Program, Aquaculture, Fisheries and Marine Environment Dept., P.O. Box 1638, 22017 Salmiya, KuwaitIFREMER, Station de Concarneau, place de la Croix, 29900 Concarneau, FranceKuwait Institute for Scientific Research (KISR), Oceanography and Fisheries Research Program, Aquaculture, Fisheries and Marine Environment Dept., P.O. Box 1638, 22017 Salmiya, Kuwait
| | - Maria Saburova
- IFREMER, Station de Concarneau, place de la Croix, 29900 Concarneau, France Institute of Biology of the Southern Seas, Pr. Nakhimova, 2, 99011, Sevastopol, Ukraine Kuwait Institute for Scientific Research (KISR), Oceanography and Fisheries Research Program, Aquaculture, Fisheries and Marine Environment Dept., P.O. Box 1638, 22017 Salmiya, KuwaitIFREMER, Station de Concarneau, place de la Croix, 29900 Concarneau, FranceKuwait Institute for Scientific Research (KISR), Oceanography and Fisheries Research Program, Aquaculture, Fisheries and Marine Environment Dept., P.O. Box 1638, 22017 Salmiya, Kuwait
| | - Gwenaël Bilien
- IFREMER, Station de Concarneau, place de la Croix, 29900 Concarneau, France Institute of Biology of the Southern Seas, Pr. Nakhimova, 2, 99011, Sevastopol, Ukraine Kuwait Institute for Scientific Research (KISR), Oceanography and Fisheries Research Program, Aquaculture, Fisheries and Marine Environment Dept., P.O. Box 1638, 22017 Salmiya, KuwaitIFREMER, Station de Concarneau, place de la Croix, 29900 Concarneau, FranceKuwait Institute for Scientific Research (KISR), Oceanography and Fisheries Research Program, Aquaculture, Fisheries and Marine Environment Dept., P.O. Box 1638, 22017 Salmiya, Kuwait
| | - Faiza Al-Yamani
- IFREMER, Station de Concarneau, place de la Croix, 29900 Concarneau, France Institute of Biology of the Southern Seas, Pr. Nakhimova, 2, 99011, Sevastopol, Ukraine Kuwait Institute for Scientific Research (KISR), Oceanography and Fisheries Research Program, Aquaculture, Fisheries and Marine Environment Dept., P.O. Box 1638, 22017 Salmiya, KuwaitIFREMER, Station de Concarneau, place de la Croix, 29900 Concarneau, FranceKuwait Institute for Scientific Research (KISR), Oceanography and Fisheries Research Program, Aquaculture, Fisheries and Marine Environment Dept., P.O. Box 1638, 22017 Salmiya, Kuwait
| |
Collapse
|