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Cozzolino L, Nicastro KR, Detree C, Gribouval L, Seuront L, Lima FP, McQuaid CD, Zardi GI. Intraspecific variations in oyster (Magallana gigas) ploidy does not affect physiological responses to microplastic pollution. CHEMOSPHERE 2024; 364:143206. [PMID: 39209043 DOI: 10.1016/j.chemosphere.2024.143206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2024] [Revised: 08/10/2024] [Accepted: 08/27/2024] [Indexed: 09/04/2024]
Abstract
Recent advances in genetic manipulation such as triploid breeding and artificial selection, have rapidly emerged as valuable hatchery methodologies for enhancing seafood stocks. The Pacific oyster Magallana gigas is a leading aquaculture species worldwide and key ecosystem engineer that has received particular attention in this field of science. In light of the growing recognition of the ecological effects of intraspecific variation, oyster polyploids provide a valuable opportunity to assess whether intraspecific diversity affects physiological responses to environmental stressors. While the responses of diploid and triploid oysters to climate change have been extensively investigated, research on their sensitivity to environmental pollution remains scarce. Here, we assess whether genotypic (i.e., ploidy) variation within Magallana gigas affects physiological responses to microplastic pollution. We show that diploid and triploid M. gigas have similar clearance rates and ingest similar amounts of microplastics under laboratory-controlled condition. In addition, they exhibited similar heart rates after prolonged exposure to microplastic leachates. Our findings suggest that intraspecific variations within M. gigas ploidy does not affect oyster responses to microplastic pollution. However, regardless of ploidy, our work highlights significant adverse effects of microplastic leachates on the heart rate of M. gigas and provides evidence of microplastic ingestion in the laboratory.
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Affiliation(s)
- Lorenzo Cozzolino
- CCMAR-Centro de Ciências do Mar, CIMAR Laboratório Associado, Universidade do Algarve, Campus de Gambelas, Faro, 8005-139, Portugal.
| | - Katy R Nicastro
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, IRD, UMR 8187, LOG - Laboratoire d'Océanologie et de Géosciences, F-59000, Lille, France; Department of Zoology and Entomology, Rhodes University, Grahamstown, 6140, South Africa
| | - Camille Detree
- Normandie Université, UNICAEN, Laboratoire Biologie des Organismes et Ecosystèmes Aquatiques, UMR 8067 BOREA (CNRS, MNHN, UPMC, UCBN, IRD-207), CS 14032, 14000, Caen, France; Office Française de la Biodiversité, 16, quai de la Douane, 29229, Brest, France
| | - Laura Gribouval
- SATMAR, La Saline, 47 route du Val-de-Saire, 50760, Gatteville-Phare, France
| | - Laurent Seuront
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, IRD, UMR 8187, LOG - Laboratoire d'Océanologie et de Géosciences, F-59000, Lille, France; Department of Zoology and Entomology, Rhodes University, Grahamstown, 6140, South Africa; Department of Marine Resources and Energy, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-ku, Tokyo, 108-8477, Japan
| | - Fernando P Lima
- CIBIO, Centro de Investigaccaao em Biodiversidade e Recursos Geneticos, InBIO Laboratório Associado, Campus de Vairaao, Rua Padre Armando Quintas, no 7, 4485-661, Vairaao, Portugal; BIOPOLIS Program in Genomics, Biodiversity and Land Planning, Campus de Vairaao, Rua Padre Armando Quintas, no 7, 4485-661, Vairaao, Portugal
| | - Christopher D McQuaid
- Department of Zoology and Entomology, Rhodes University, Grahamstown, 6140, South Africa
| | - Gerardo I Zardi
- Department of Zoology and Entomology, Rhodes University, Grahamstown, 6140, South Africa; Normandie Université, UNICAEN, Laboratoire Biologie des Organismes et Ecosystèmes Aquatiques, UMR 8067 BOREA (CNRS, MNHN, UPMC, UCBN, IRD-207), CS 14032, 14000, Caen, France
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2
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Liddle TA, Majumdar G, Stewart C, Bain MM, Stevenson TJ. Dissociating Mechanisms That Underlie Seasonal and Developmental Programs for the Neuroendocrine Control of Physiology in Birds. eNeuro 2024; 11:ENEURO.0154-23.2023. [PMID: 38548332 PMCID: PMC11007308 DOI: 10.1523/eneuro.0154-23.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 12/14/2023] [Accepted: 12/19/2023] [Indexed: 04/12/2024] Open
Abstract
Long-term programmed rheostatic changes in physiology are essential for animal fitness. Hypothalamic nuclei and the pituitary gland govern key developmental and seasonal transitions in reproduction. The aim of this study was to identify the molecular substrates that are common and unique to developmental and seasonal timing. Adult and juvenile quail were collected from reproductively mature and immature states, and key molecular targets were examined in the mediobasal hypothalamus (MBH) and pituitary gland. qRT-PCR assays established deiodinase type 2 (DIO2) and type 3 (DIO3) expression in adults changed with photoperiod manipulations. However, DIO2 and DIO3 remain constitutively expressed in juveniles. Pituitary gland transcriptome analyses established that 340 transcripts were differentially expressed across seasonal photoperiod programs and 1,189 transcripts displayed age-dependent variation in expression. Prolactin (PRL) and follicle-stimulating hormone subunit beta (FSHβ) are molecular markers of seasonal programs and are significantly upregulated in long photoperiod conditions. Growth hormone expression was significantly upregulated in juvenile quail, regardless of photoperiodic condition. These findings indicate that a level of cell autonomy in the pituitary gland governs seasonal and developmental programs in physiology. Overall, this paper yields novel insights into the molecular mechanisms that govern developmental programs and adult brain plasticity.
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Affiliation(s)
- Timothy Adam Liddle
- Laboratory of Seasonal Biology, School of Biodiversity, One Health, and Veterinary Medicine, University of Glasgow, Glasgow, United Kingdom
| | - Gaurav Majumdar
- Department of Zoology, University of Allahabad, Allahabad, India
| | - Calum Stewart
- Laboratory of Seasonal Biology, School of Biodiversity, One Health, and Veterinary Medicine, University of Glasgow, Glasgow, United Kingdom
| | - Maureen M Bain
- Laboratory of Seasonal Biology, School of Biodiversity, One Health, and Veterinary Medicine, University of Glasgow, Glasgow, United Kingdom
| | - Tyler John Stevenson
- Laboratory of Seasonal Biology, School of Biodiversity, One Health, and Veterinary Medicine, University of Glasgow, Glasgow, United Kingdom
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Botté A, Payton L, Lefeuvre E, Tran D. Is part-night lighting a suitable mitigation strategy to limit Artificial Light at Night effects on the biological rhythm at the behavioral and molecular scales of the oyster Crassostrea gigas? THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167052. [PMID: 37714354 DOI: 10.1016/j.scitotenv.2023.167052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 09/01/2023] [Accepted: 09/11/2023] [Indexed: 09/17/2023]
Abstract
Artificial Light at Night (ALAN) is a fast-spreading threat to organisms, especially in coastal environments, where night lighting is increasing due to constant anthropization. Considering that ALAN affects a large diversity of coastal organisms, finding efficient solutions to limit these effects is of great importance but poorly investigated. The potential benefit of one strategy, in particular, should be studied since its use is growing: part-night lighting (PNL), which consists in switching off the lights for a few hours during nighttime. The aim of this study is to investigate the positive potential of the PNL strategy on the daily rhythm of the oyster Crassostrea gigas, a key species of coastal areas of ecological and commercial interest. Oysters were exposed to a control condition and three different ALAN modalities. A realistic PNL condition is applied, recreating a strategy of city policy in a coastal city boarding an urbanized bay (Lanton, Arcachon Bay, France). The PNL modality consists in switching off ALAN direct sources (5 lx) for 4 h (23-3 h) during which oysters are in darkness. Then, a PNL + skyglow (PNL + S) modality reproduces the previous one mimicking a skyglow (0.1 lx), an indirect ALAN source, during the direct lighting switch off, to get as close as possible to realistic conditions. Finally, the third ALAN condition mimics full-night direct lighting (FNL). Results revealed that PNL reduces some adverse effects of FNL on the behavioral daily rhythm. But, counterintuitively, PNL + S appears more harmful than FNL for some parameters of the behavioral daily rhythm. PNL + S modality is also the only one that affect oysters' clock and melatonin synthesis gene expression, suggesting physiological consequences. Thus, in realistic conditions, the PNL mitigation strategy might not be beneficial in the presence of skyglow, seeing worse for a coastal organism such as the oysters.
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Affiliation(s)
- Audrey Botté
- Univ. Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, F-33120 Arcachon, France
| | - Laura Payton
- Univ. Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, F-33120 Arcachon, France
| | - Elisa Lefeuvre
- Univ. Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, F-33120 Arcachon, France
| | - Damien Tran
- Univ. Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, F-33120 Arcachon, France.
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Botte A, Payton L, Tran D. The effects of artificial light at night on behavioral rhythm and related gene expression are wavelength dependent in the oyster Crassostrea gigas. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:120375-120386. [PMID: 37938485 DOI: 10.1007/s11356-023-30793-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 10/27/2023] [Indexed: 11/09/2023]
Abstract
Artificial light at night (ALAN) constitutes a growing threat to coastal ecosystems by altering natural light cycles, which could impair organisms' biological rhythms, with resulting physiological and ecological consequences. Coastal ecosystems are strongly exposed to ALAN, but its effects on coastal organisms are poorly studied. Besides ALAN's intensity, ALAN's quality exposure may change the impacts on organisms. This study aims to characterize the effects of different ALAN's spectral compositions (monochromatic wavelength lights in red (peak at 626 nm), green (peak at 515 nm), blue (peak at 467 nm), and white (410-680 nm) light) at low and realistic intensity (1 lx) on the oyster Crassostrea gigas daily rhythm. Results reveal that all ALAN's treatments affect the oysters' daily valve activity rhythm in different manners and the overall expression of the 13 studied genes. Eight of these genes are involved in the oyster's circadian clock, 2 are clock-associated genes, and 3 are light perception genes. The blue light has the most important effects on oysters' valve behavior and clock and clock-associated gene expression. Interestingly, red and green lights also show significant impacts on the daily rhythm, while the lowest impacts are shown with the green light. Finally, ALAN white light shows the same impact as the blue one in terms of loss of rhythmic oysters' percentage, but the chronobiological parameters of the remaining rhythmic oysters are less disrupted than when exposed to each of the monochromatic light's treatments alone. We conclude that ALAN's spectral composition does influence its effect on oysters' daily rhythm, which could give clues to limit physiological and ecological impacts on coastal environments.
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Affiliation(s)
- Audrey Botte
- University of Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, 33120, Arcachon, France
| | - Laura Payton
- University of Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, 33120, Arcachon, France
| | - Damien Tran
- University of Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, 33120, Arcachon, France.
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Botté A, Payton L, Tran D. Artificial light at night at environmental intensities disrupts daily rhythm of the oyster Crassostrea gigas. MARINE POLLUTION BULLETIN 2023; 191:114850. [PMID: 37019034 DOI: 10.1016/j.marpolbul.2023.114850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 03/17/2023] [Accepted: 03/18/2023] [Indexed: 05/13/2023]
Abstract
Artificial Light At Night (ALAN) masks the natural light cycles and thus can disturb the synchronization of organisms' biological rhythms with their environment. Although coastlines are highly exposed to this growing threat, studies concerning the impacts of ALAN on coastal organisms remain scarce. In this study, we investigated the ALAN exposure effects at environmentally realistic intensities (0.1, 1, 10, 25 lx) on the oyster Crassostrea gigas, a sessile bivalve subject to light pollution on shores. We focused on the effects on oyster's daily rhythm at behavioral and molecular levels. Our results showed that ALAN disrupts the oyster's daily rhythm by increasing valve activity and annihilating day / night differences of expression of circadian clock and clock-associated genes. ALAN effects occur starting from 0.1 lx, in the range of artificial skyglow illuminances. We concluded that realistic ALAN exposure affects oysters' biological rhythm, which could lead to severe physiological and ecological consequences.
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Affiliation(s)
- Audrey Botté
- Univ. Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, F-33120 Arcachon, France
| | - Laura Payton
- Univ. Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, F-33120 Arcachon, France
| | - Damien Tran
- Univ. Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, F-33120 Arcachon, France.
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Evidence of separate influence of moon and sun on light synchronization of mussel's daily rhythm during the polar night. iScience 2023; 26:106168. [PMID: 36876122 PMCID: PMC9978622 DOI: 10.1016/j.isci.2023.106168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/24/2022] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Marine organisms living at high latitudes are faced with a light climate that undergoes drastic annual changes, especially during the polar night (PN) when the sun remains below the horizon for months. This raises the question of a possible synchronization and entrainment of biological rhythms under the governance of light at very low intensities. We analyzed the rhythms of the mussel Mytilus sp. during PN. We show that (1) mussels expressed a rhythmic behavior during PN; (2) a monthly moonlight rhythm was expressed; (3) a daily rhythm was expressed and influenced by both sunlight and moonlight; and (4) depending on the different times of PN and moon cycle characteristics, we were able to discriminate whether the moon or the sun synchronize the daily rhythm. Our findings fuel the idea that the capability of moonlight to synchronize daily rhythms when sunlight is not sufficient would be a crucial advantage during PN.
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Maillard F, Elie N, Villain-Naud N, Lepoittevin M, Martinez AS, Lelong C. Male triploid oysters of Crassostrea gigas exhibit defects in mitosis and meiosis during early spermatogenesis. FEBS Open Bio 2021; 12:1438-1452. [PMID: 34935310 PMCID: PMC9340784 DOI: 10.1002/2211-5463.13356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 11/16/2021] [Accepted: 12/20/2021] [Indexed: 11/07/2022] Open
Abstract
The Pacific oyster, Crassostrea gigas is a successive irregular hermaphrodite mollusc which has an annual breeding cycle. Oysters are naturally diploid organisms, but triploid oysters have been developed for use in shellfish aquaculture, with the aim of obtaining sterile animals with commercial value. However, studies have shown that some triploid oysters are partially able to undergo gametogenesis, with numerous proliferating cells closed to diploids (3n alpha) or a partial one with an accumulation of locked germ cells (3n beta). The aim of our study therefore was to understand the regulation of spermatogenesis in both groups of triploid oysters (alpha and beta) from the beginning of spermatogenesis, during mitosis and meiosis events. Our results demonstrate that the reduced spermatogenesis in triploids results from a deregulation of the development of the germinal lineage and the establishment of the gonadal tract led by a lower number of tubules. Morphological cellular investigation also revealed an abnormal condensation of germ cell nuclei and the presence of clear patches in the nucleoplasm of triploid cells, which were more pronounced in beta oysters. Furthermore, studies of molecular and cellular regulation showed a downregulation of mitotic spindle checkpoint in beta oysters, resulting in disturbance of chromosomal segregation, notably on Spindle Assembly Checkpoint involved in the binding of microtubules to chromosomes. Taken together, our results suggest that the lower reproductive ability of triploid oysters may be due to cellular and molecular events such as impairment of spermatogenesis and disruptions of mitosis and meiosis, occurring early and at various stages of the gametogenetic cycle.
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Affiliation(s)
- Floriane Maillard
- Unité de Formation et de Recherches (UFR) des sciences, Université de Caen Normandie, 14032, Caen CEDEX, France.,Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), FRE2030, Museum National d'Histoire Naturelle (MNHN), Centre National de la Recherche Scientifique (CNRS), Institut de Recherche et Développement (IRD), Sorbonne Université (SU), Université de Caen Normandie (UCN), Université des Antilles (UA), 75231, Paris CEDEX, France
| | - Nicolas Elie
- Unité de Formation et de Recherches (UFR) des sciences, Université de Caen Normandie, 14032, Caen CEDEX, France.,Microscopie Appliquée à la Biologie, SF4206 Interaction Cellule-Organisme-Environnement (ICORE), Université de Caen Normandie, Esplanade de la paix, 14032, Caen CEDEX, France
| | - Nadège Villain-Naud
- Unité de Formation et de Recherches (UFR) des sciences, Université de Caen Normandie, 14032, Caen CEDEX, France.,Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), FRE2030, Museum National d'Histoire Naturelle (MNHN), Centre National de la Recherche Scientifique (CNRS), Institut de Recherche et Développement (IRD), Sorbonne Université (SU), Université de Caen Normandie (UCN), Université des Antilles (UA), 75231, Paris CEDEX, France
| | - Mélanie Lepoittevin
- Unité de Formation et de Recherches (UFR) des sciences, Université de Caen Normandie, 14032, Caen CEDEX, France.,Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), FRE2030, Museum National d'Histoire Naturelle (MNHN), Centre National de la Recherche Scientifique (CNRS), Institut de Recherche et Développement (IRD), Sorbonne Université (SU), Université de Caen Normandie (UCN), Université des Antilles (UA), 75231, Paris CEDEX, France
| | - Anne-Sophie Martinez
- Unité de Formation et de Recherches (UFR) des sciences, Université de Caen Normandie, 14032, Caen CEDEX, France.,Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), FRE2030, Museum National d'Histoire Naturelle (MNHN), Centre National de la Recherche Scientifique (CNRS), Institut de Recherche et Développement (IRD), Sorbonne Université (SU), Université de Caen Normandie (UCN), Université des Antilles (UA), 75231, Paris CEDEX, France
| | - Christophe Lelong
- Unité de Formation et de Recherches (UFR) des sciences, Université de Caen Normandie, 14032, Caen CEDEX, France.,Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), FRE2030, Museum National d'Histoire Naturelle (MNHN), Centre National de la Recherche Scientifique (CNRS), Institut de Recherche et Développement (IRD), Sorbonne Université (SU), Université de Caen Normandie (UCN), Université des Antilles (UA), 75231, Paris CEDEX, France.,Oestrogènes et Reproduction (OeReCa), EA2608, Université de Caen Normandie, Esplanade de la paix, 14032, Caen CEDEX, France
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8
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Song H, Wei L, Zhong M, Chen X, Xie C, Chen X, Wang X, Huang B, Liu Y, Zhang M, Qi Y, Wang X. Ambient ultraviolet B radiation induced valve behavioral acclimation of Pacific oyster which resulted from the different response strategies of smooth and striated adductor muscles. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 228:113035. [PMID: 34863076 DOI: 10.1016/j.ecoenv.2021.113035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 11/18/2021] [Accepted: 11/25/2021] [Indexed: 06/13/2023]
Abstract
Light not only conveys image-forming vision but also has an impact on various physiological functions. In particular, ultraviolet B (UVB) radiation has the closest relationship with living organisms. For Pacific oysters (Crassostrea gigas), alteration of valve behavior is one of the most important ways responding to ambient UVB. In the present study, the response of adult C. gigas to sunlight (especially UVB) was evaluated by monitoring valve activity and further elucidated at the physiological and metabolomic levels. After exposure, the valve activity of C. gigas demonstrated flexible acclimation to the ambient conditions. The potential adjustment of osmoregulation and oxidative stress might be related to ambient UVB radiation. Mycosporine-like amino acids might contribute to the protection of C. gigas against UVB, while precursors of β-alanine and degradation products of 5-hydroxytryptamine might adjust the contraction of the adductor muscles. The different responses of the adductor muscles (smooth and striated) were manifested in signal transduction and metabolisms of energy and nucleotide. This study not only indicated the correlation between the valve behavioral changes in oysters and light radiation, especially UVB, but illustrated the acclimation strategies of oysters to ambient light (UVB) environment.
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Affiliation(s)
- Hongce Song
- School of Agriculture, Ludong University, Yantai 264025, PR China
| | - Lei Wei
- School of Agriculture, Ludong University, Yantai 264025, PR China.
| | - Mingyu Zhong
- Ocean School, Yantai University, Yantai 264005, PR China
| | - Xi Chen
- School of Agriculture, Ludong University, Yantai 264025, PR China
| | - Chaoyi Xie
- School of Agriculture, Ludong University, Yantai 264025, PR China
| | - Xiao Chen
- School of Agriculture, Ludong University, Yantai 264025, PR China
| | - Xiaona Wang
- School of Agriculture, Ludong University, Yantai 264025, PR China
| | - Baoyu Huang
- School of Agriculture, Ludong University, Yantai 264025, PR China
| | - Yaqiong Liu
- School of Agriculture, Ludong University, Yantai 264025, PR China
| | - Meiwei Zhang
- School of Agriculture, Ludong University, Yantai 264025, PR China
| | - Yitao Qi
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an 710119, PR China
| | - Xiaotong Wang
- School of Agriculture, Ludong University, Yantai 264025, PR China.
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Fiorito F, Di Concilio D, Lambiase S, Amoroso MG, Langellotti AL, Martello A, Esposito M, Galiero G, Fusco G. Oyster Crassostrea gigas, a good model for correlating viral and chemical contamination in the marine environment. MARINE POLLUTION BULLETIN 2021; 172:112825. [PMID: 34388447 DOI: 10.1016/j.marpolbul.2021.112825] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 07/28/2021] [Accepted: 08/02/2021] [Indexed: 06/13/2023]
Abstract
To establish a relationship between viruses and chemicals, they were analysed in oyster Crassostrea gigas from an Italian experimental station. The chemicals concentrations were: Σ6 NDL-PCBs 0.82-7.12 ng g-1; BaP LOQ (<0.2 μg kg-1) to 1.2 μg kg-1; PAH4 LOQ (<0.2 μg kg-1) to 9.8 μg kg-1; Cd 0.073-0.365 mg kg-1; Pb 0.010-0.487 mg kg-1; and Hg < LOQ (0.089 mg kg-1). The viruses identified included: noroviruses (NoVGI/GII), astrovirus (AsV), rotavirus (RV), adenovirus (AdV), and sapovirus (SaV), while hepatitis A, hepatitis E, and Aichi viruses were not detected. Significant correlations were observed for NDL-PCBs with NoVGI, NoVGII, and AdV; BaP and PAH4 with NoVGI and AsV; Cd with RV; Pb with NoVGI and AsV; PAHs with Pb; AsV with NoVGI; and AdV with NoVGII. The study indicated as C. gigas is a model for correlating pollutants and foodborne viruses, whose co-presence may represent an additional food safety risk.
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Affiliation(s)
- Filomena Fiorito
- Dipartimento di Medicina Veterinaria e Produzioni Animali, Università degli Studi di Napoli Federico II, Naples, Italy.
| | - Denise Di Concilio
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Naples, Italy
| | - Sara Lambiase
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Naples, Italy.
| | | | - Antonio L Langellotti
- Centro di Ateneo per l'Innovazione e lo Sviluppo dell'Industria Alimentare (CAISIAL), Università degli Studi di Napoli Federico II, Portici, Naples, Italy
| | - Anna Martello
- Centro di Ateneo per l'Innovazione e lo Sviluppo dell'Industria Alimentare (CAISIAL), Università degli Studi di Napoli Federico II, Portici, Naples, Italy
| | - Mauro Esposito
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Naples, Italy; Centro di Referenza Nazionale per l'Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Naples, Italy
| | - Giorgio Galiero
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Naples, Italy
| | - Giovanna Fusco
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Naples, Italy
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10
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Tran D, Andrade H, Durier G, Ciret P, Leopold P, Sow M, Ballantine C, Camus L, Berge J, Perrigault M. Growth and behaviour of blue mussels, a re-emerging polar resident, follow a strong annual rhythm shaped by the extreme high Arctic light regime. ROYAL SOCIETY OPEN SCIENCE 2020; 7:200889. [PMID: 33204461 PMCID: PMC7657935 DOI: 10.1098/rsos.200889] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 09/23/2020] [Indexed: 06/11/2023]
Abstract
Polar regions are currently warming at a rate above the global average. One issue of concern is the consequences on biodiversity in relation to the Northward latitudinal shift in distribution of temperate species. In the present study, lasting almost two years, we examined two phenological traits, i.e. the shell growth and behavioural rhythm of a recently re-established species in the high Arctic, the blue mussel Mytilus sp. We compared this with a native species, the Islandic scallop Chlamys islandica. We show marked differences in the examined traits between the two species. In Mytilus sp., a clear annual pattern of shell growth strongly correlated to the valve behaviour rhythmicity, whereas C. islandica exhibited a shell growth pattern with a total absence of annual rhythmicity of behaviour. The shell growth was highly correlated to the photoperiod for the mussels but weaker for the scallops. The water temperature cycle was a very weak parameter to anticipate the phenology traits of both species. This study shows that the new resident in the high Arctic, Mytilus sp., is a highly adaptive species, and therefore a promising bioindicator to study the consequences of biodiversity changes due to global warming.
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Affiliation(s)
- Damien Tran
- University of Bordeaux, UMR 5805, F-33120 Arcachon, France
- CNRS, EPOC, UMR 5805, F-33120 Arcachon, France
| | - Hector Andrade
- Akvaplan-niva AS, Fram – High North Centre for Climate and the Environment, Langnes, Postbox 6606, 9296 Tromsø, Norway
| | | | - Pierre Ciret
- University of Bordeaux, UMR 5805, F-33120 Arcachon, France
- CNRS, EPOC, UMR 5805, F-33120 Arcachon, France
| | - Peter Leopold
- Faculty of Biosciences, Fisheries and Economics, UiT The Arctic University of Norway, 9037 Tromsø, Norway
- University Centre in Svalbard, Pb 156, 9171 Longyearbyen, Norway
| | - Mohamedou Sow
- University of Bordeaux, UMR 5805, F-33120 Arcachon, France
| | - Carl Ballantine
- Akvaplan-niva AS, Fram – High North Centre for Climate and the Environment, Langnes, Postbox 6606, 9296 Tromsø, Norway
| | - Lionel Camus
- Akvaplan-niva AS, Fram – High North Centre for Climate and the Environment, Langnes, Postbox 6606, 9296 Tromsø, Norway
| | - Jørgen Berge
- Faculty of Biosciences, Fisheries and Economics, UiT The Arctic University of Norway, 9037 Tromsø, Norway
- University Centre in Svalbard, Pb 156, 9171 Longyearbyen, Norway
- Department of Biology, Norwegian University of Science and Technology, Centre for Autonomous Marine Operations and Systems, NTNU
| | - Mickael Perrigault
- University of Bordeaux, UMR 5805, F-33120 Arcachon, France
- CNRS, EPOC, UMR 5805, F-33120 Arcachon, France
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Tran D, Perrigault M, Ciret P, Payton L. Bivalve mollusc circadian clock genes can run at tidal frequency. Proc Biol Sci 2020; 287:20192440. [PMID: 31910786 DOI: 10.1098/rspb.2019.2440] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Marine coastal habitats are complex cyclic environments as a result of sun and moon interactions. In contrast with the well-known circadian orchestration of the terrestrial animal rhythmicity (approx. 24 h), the mechanism responsible for the circatidal rhythm (approx. 12.4 h) remains largely elusive in marine organisms. We revealed in subtidal field conditions that the oyster Crassostrea gigas exhibits tidal rhythmicity of circadian clock genes and clock-associated genes. A free-running (FR) experiment showed an endogenous circatidal rhythm. In parallel, we showed in the field that oysters' valve behaviour exhibited a strong tidal rhythm combined with a daily rhythm. In the FR experiment, all behavioural rhythms were circatidal, and half of them were also circadian. Our results fuel the debate on endogenous circatidal mechanisms. In contrast with the current hypothesis on the existence of an independent tidal clock, we suggest that a single 'circadian/circatidal' clock in bivalves is sufficient to entrain behavioural patterns at tidal and daily frequencies.
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Affiliation(s)
- Damien Tran
- EPOC, University of Bordeaux, UMR 5805, 33120 Arcachon, France.,EPOC, CNRS, UMR 5805, 33120 Arcachon, France
| | - Mickael Perrigault
- EPOC, University of Bordeaux, UMR 5805, 33120 Arcachon, France.,EPOC, CNRS, UMR 5805, 33120 Arcachon, France
| | - Pierre Ciret
- EPOC, University of Bordeaux, UMR 5805, 33120 Arcachon, France.,EPOC, CNRS, UMR 5805, 33120 Arcachon, France
| | - Laura Payton
- EPOC, University of Bordeaux, UMR 5805, 33120 Arcachon, France.,EPOC, CNRS, UMR 5805, 33120 Arcachon, France
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Abstract
Organisms possess endogenous clock mechanisms that are synchronized to external cues and orchestrate biological rhythms. Internal timing confers the advantage of being able to anticipate environmental cycles inherent in life on Earth and to prepare accordingly. Moonlight-entrained rhythms are poorly described, being much less investigated than circadian and circannual rhythms synchronized by sunlight. Yet focus on these lunar rhythms is highly relevant to understanding temporal organization of biological processes. Here, we investigate moonlight cycle effects on valve activity behaviour of the oyster Crassostrea gigas. Our results show that oysters modulate valve behaviour according to both intensity and direction of the lunar illumination cycle. As a consequence, valve opening amplitude is significantly increased at third quarter Moons (decreasing lunar illumination) compared with first quarter Moons (increasing lunar illumination) despite identical lunar illumination, and this indicates that oyster modulation of valve behaviour by moonlight cycles is not a direct response to lunar illumination. We propose that oysters use moonlight cycles to synchronize behaviour and also other physiological and ecological aspects of this benthic mollusc bivalve.
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Affiliation(s)
- Laura Payton
- 1 University of Bordeaux , EPOC, UMR 5805, 33120 Arcachon , France.,2 CNRS, EPOC , UMR 5805, 33120 Arcachon , France
| | - Damien Tran
- 1 University of Bordeaux , EPOC, UMR 5805, 33120 Arcachon , France.,2 CNRS, EPOC , UMR 5805, 33120 Arcachon , France
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