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Wu H, Yang Y, Zhang Q, Zheng G, Geng Q, Tan Z. Immune and physiological responses of Mytilus unguiculatus to Alexandrium spp. with varying paralytic shellfish toxin profiles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 935:173483. [PMID: 38796022 DOI: 10.1016/j.scitotenv.2024.173483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/16/2024] [Accepted: 05/22/2024] [Indexed: 05/28/2024]
Abstract
The innate immunity of bivalves serves as the initial defense mechanism against environmental pollutants, ultimately impacting genetic regulatory networks through synergistic interactions. Previous research has demonstrated variations in the accumulation and tolerance capacities of bivalves; however, the specific mechanism underlying the low accumulation of PSTs in M. unguiculatus remains unclear. This study examined the alterations in feeding behavior and transcriptional regulation of M. unguiculatus following exposure to two Alexandrium strains with distinct toxin profiles, specifically gonyautoxin (AM) and N-sulfocarbamoyl toxin (AC). The total accumulation rate of PSTs in M. unguiculatus was 43.64 % (AC) and 27.80 % (AM), with highest PSTs content in the AM group (455.39 μg STXeq/kg). There were significant variations (P < 0.05) in physiological parameters, such as total hemocyte count, antioxidant superoxide activity and tissue damage in both groups. The absorption rate was identified as the key factor influencing toxin accumulation. Transcriptomic analyses demonstrated that PSTs triggered upregulation of endocytosis, lysosome, and immune-related signaling pathways. Furthermore, PSTs induced a nucleotide imbalance in the AC group, with total PSTs content serving as the most toxic indicator. These results suggested that protein-like substances had a crucial role in the stress response of M. unguiculatus to PSTs. This study provided novel perspectives on the impacts of intricate regulatory mechanisms and varying immune responses to PSTs in bivalves.
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Affiliation(s)
- Haiyan Wu
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture; Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Yuecong Yang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Qianru Zhang
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture; Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Guanchao Zheng
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture; Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Qianqian Geng
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture; Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Zhijun Tan
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture; Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China.
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Li JA, He Y, Yang B, Mokrani A, Li Y, Tan C, Li Q, Liu S. Whole-genome DNA methylation profiling revealed epigenetic regulation of NF-κB signaling pathway involved in response to Vibrio alginolyticus infection in the Pacific oyster, Crassostrea gigas. FISH & SHELLFISH IMMUNOLOGY 2024; 151:109705. [PMID: 38885801 DOI: 10.1016/j.fsi.2024.109705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 06/08/2024] [Accepted: 06/14/2024] [Indexed: 06/20/2024]
Abstract
DNA methylation, an essential epigenetic alteration, is tightly linked to a variety of biological processes, such as immune response. To identify the epigenetic regulatory mechanism in Pacific oyster (Crassostrea gigas), whole-genome bisulfite sequencing (WGBS) was conducted on C. gigas at 0 h, 6 h, and 48 h after infection with Vibrio alginolyticus. At 6 h and 48 h, a total of 11,502 and 14,196 differentially methylated regions (DMRs) were identified (p<0.05, FDR<0.001) compared to 0 h, respectively. Gene ontology (GO) analysis showed that differentially methylated genes (DMGs) were significantly enriched in various biological pathways including immunity, cytoskeleton, epigenetic modification, and metabolic processes. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis showed that transcription machinery (ko03021) is one of the most important pathways. Integrated transcriptome and methylome analyses allowed the identification of 167 and 379 DMG-related DEGs at 6 h and 48 h, respectively. These genes were significantly enriched in immune-related pathways, including nuclear factor kappa B (NF-κB) signaling pathway (ko04064) and tumor necrosis factor (TNF) signaling pathway (ko04668). Interestingly, it's observed that the NF-κB pathway could be activated jointly by TNF Receptor Associated Factor 2 (TRAF2) and Baculoviral IAP Repeat Containing 3 (BIRC3, the homolog of human BIRC2) which were regulated by DNA methylation in response to the challenge posed by V. alginolyticus infection. Through this study, we provided insightful information about the epigenetic regulation of immunity-related genes in the C. gigas, which will be valuable for the understanding of the innate immune system modulation and defense mechanism against bacterial infection in invertebrates.
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Affiliation(s)
- Jian-An Li
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, and College of Fisheries, Ocean University of China, Qingdao, 266003, China
| | - Yameng He
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, and College of Fisheries, Ocean University of China, Qingdao, 266003, China
| | - Ben Yang
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, and College of Fisheries, Ocean University of China, Qingdao, 266003, China
| | - Ahmed Mokrani
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, and College of Fisheries, Ocean University of China, Qingdao, 266003, China
| | - Yin Li
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, and College of Fisheries, Ocean University of China, Qingdao, 266003, China
| | - Chao Tan
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, and College of Fisheries, Ocean University of China, Qingdao, 266003, China
| | - Qi Li
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, and College of Fisheries, Ocean University of China, Qingdao, 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Laoshan National Laboratory, Qingdao, 266237, China
| | - Shikai Liu
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, and College of Fisheries, Ocean University of China, Qingdao, 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Laoshan National Laboratory, Qingdao, 266237, China.
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Destoumieux-Garzón D, Montagnani C, Dantan L, Nicolas NDS, Travers MA, Duperret L, Charrière GM, Toulza E, Mitta G, Cosseau C, Escoubas JM. Cross-talk and mutual shaping between the immune system and the microbiota during an oyster's life. Philos Trans R Soc Lond B Biol Sci 2024; 379:20230065. [PMID: 38497271 PMCID: PMC10945412 DOI: 10.1098/rstb.2023.0065] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 09/25/2023] [Indexed: 03/19/2024] Open
Abstract
The Pacific oyster Crassostrea gigas lives in microbe-rich marine coastal systems subjected to rapid environmental changes. It harbours a diversified and fluctuating microbiota that cohabits with immune cells expressing a diversified immune gene repertoire. In the early stages of oyster development, just after fertilization, the microbiota plays a key role in educating the immune system. Exposure to a rich microbial environment at the larval stage leads to an increase in immune competence throughout the life of the oyster, conferring a better protection against pathogenic infections at later juvenile/adult stages. This beneficial effect, which is intergenerational, is associated with epigenetic remodelling. At juvenile stages, the educated immune system participates in the control of the homeostasis. In particular, the microbiota is fine-tuned by oyster antimicrobial peptides acting through specific and synergistic effects. However, this balance is fragile, as illustrated by the Pacific Oyster Mortality Syndrome, a disease causing mass mortalities in oysters worldwide. In this disease, the weakening of oyster immune defences by OsHV-1 µVar virus induces a dysbiosis leading to fatal sepsis. This review illustrates the continuous interaction between the highly diversified oyster immune system and its dynamic microbiota throughout its life, and the importance of this cross-talk for oyster health. This article is part of the theme issue 'Sculpting the microbiome: how host factors determine and respond to microbial colonization'.
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Affiliation(s)
- Delphine Destoumieux-Garzón
- IHPE, University of Montpellier, CNRS, IFREMER, University of Perpignan Via Domitia,34090 Montpellier, France
| | - Caroline Montagnani
- IHPE, University of Montpellier, CNRS, IFREMER, University of Perpignan Via Domitia,34090 Montpellier, France
| | - Luc Dantan
- IHPE, University of Montpellier, CNRS, IFREMER, University of Perpignan Via Domitia,34090 Montpellier, France
| | - Noémie de San Nicolas
- IHPE, University of Montpellier, CNRS, IFREMER, University of Perpignan Via Domitia,34090 Montpellier, France
| | - Marie-Agnès Travers
- IHPE, University of Montpellier, CNRS, IFREMER, University of Perpignan Via Domitia,34090 Montpellier, France
| | - Léo Duperret
- IHPE, University of Montpellier, CNRS, IFREMER, University of Perpignan Via Domitia,34090 Montpellier, France
| | - Guillaume M. Charrière
- IHPE, University of Montpellier, CNRS, IFREMER, University of Perpignan Via Domitia,34090 Montpellier, France
| | - Eve Toulza
- IHPE, University of Montpellier, CNRS, IFREMER, University of Perpignan Via Domitia,34090 Montpellier, France
| | - Guillaume Mitta
- Ifremer, IRD, ILM, Université de Polynésie Française, UMR EIO, Vairao 98179, French Polynesia
| | - Céline Cosseau
- IHPE, University of Montpellier, CNRS, IFREMER, University of Perpignan Via Domitia,34090 Montpellier, France
| | - Jean-Michel Escoubas
- IHPE, University of Montpellier, CNRS, IFREMER, University of Perpignan Via Domitia,34090 Montpellier, France
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Chen B, Wang M, Guo Y, Zhang Z, Zhou W, Cao L, Zhang T, Ali S, Xie L, Li Y, Zinta G, Sun S, Zhang Q. Climate-related naturally occurring epimutation and their roles in plant adaptation in A. thaliana. Mol Ecol 2024:e17356. [PMID: 38634782 DOI: 10.1111/mec.17356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/27/2024] [Accepted: 04/05/2024] [Indexed: 04/19/2024]
Abstract
DNA methylation has been proposed to be an important mechanism that allows plants to respond to their environments sometimes entirely uncoupled from genetic variation. To understand the genetic basis, biological functions and climatic relationships of DNA methylation at a population scale in Arabidopsis thaliana, we performed a genome-wide association analysis with high-quality single nucleotide polymorphisms (SNPs), and found that ~56% on average, especially in the CHH sequence context (71%), of the differentially methylated regions (DMRs) are not tagged by SNPs. Among them, a total of 3235 DMRs are significantly associated with gene expressions and potentially heritable. 655 of the 3235 DMRs are associated with climatic variables, and we experimentally verified one of them, HEI10 (HUMAN ENHANCER OF CELL INVASION NO.10). Such epigenetic loci could be subjected to natural selection thereby affecting plant adaptation, and would be expected to be an indicator of accessions at risk. We therefore incorporated these climate-related DMRs into a gradient forest model, and found that the natural A. thaliana accessions in Southern Europe that may be most at risk under future climate change. Our findings highlight the importance of integrating DNA methylation that is independent of genetic variations, and climatic data to predict plants' vulnerability to future climate change.
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Affiliation(s)
- Bowei Chen
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- The Center for Basic Forestry Research, College of Forestry, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
- College of Biology Resources and Environmental Sciences, Jishou University, Jishou, China
| | - Min Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- The Center for Basic Forestry Research, College of Forestry, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Yile Guo
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- The Center for Basic Forestry Research, College of Forestry, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Zihui Zhang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- The Center for Basic Forestry Research, College of Forestry, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Wei Zhou
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- The Center for Basic Forestry Research, College of Forestry, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Lesheng Cao
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- The Center for Basic Forestry Research, College of Forestry, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Tianxu Zhang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- The Center for Basic Forestry Research, College of Forestry, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Shahid Ali
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- The Center for Basic Forestry Research, College of Forestry, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Linan Xie
- The Center for Basic Forestry Research, College of Forestry, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin, China
| | - Yuhua Li
- College of Life Science, Northeast Forestry University, Harbin, China
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin, China
| | - Gaurav Zinta
- Integrative Plant AdaptOmics Lab (iPAL), Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur (CSIR-IHBT), Palampur, Himachal Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Shanwen Sun
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- The Center for Basic Forestry Research, College of Forestry, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Qingzhu Zhang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- The Center for Basic Forestry Research, College of Forestry, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
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5
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Kundu S, Ray A, Das Gupta S, Biswas A, Roy S, Kumar Tiwari N, Kumar VS, Das BK. Environmental bisphenol A disrupts methylation of steroidogenic genes in the ovary of Paradise threadfin Polynemus paradiseus via abnormal DNA methylation: Implications for human exposure and health risk assessment. CHEMOSPHERE 2024; 351:141236. [PMID: 38237780 DOI: 10.1016/j.chemosphere.2024.141236] [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: 10/17/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 01/26/2024]
Abstract
Bisphenol A, endocrine-disrupting chemicals (EDCs) impacting disease development via epigenetic modifications, is crucial in transcriptional regulation. However, ecotoxicology's limited exploration of epigenetics prompted our study's objective: examining the extended exposure of riverine Bisphenol A (BPA), a potent EDC, on DNA methylation during female paradise threadfin (Polynemus paradiseus) reproductive maturation. Assessing BPA contamination in riverine water, we collected fish samples from two locations with distinct contamination levels. In the highly contaminated region (Hc), we observed elevated DNA methylation in aromatase (7.5-fold), 20β-HSD (3-fold), and FSHR (2-fold) genes. Hormone receptor investigation highlighted an escalating connection between transcriptional hyper-methylation and contamination levels. Additionally, our study revealed a positive correlation between oocyte growth and global DNA methylation, suggesting BPA's potential to modify DNA methylation in female paradise threadfins. This effect likely occurs through changes in hormone receptor expression, persisting throughout oocyte maturation. Notably, our research, the first of its kind in estuarine areas, confirmed BPA contamination in paradise threadfins, raising concerns about potential health risks for humans.
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Affiliation(s)
- Sourav Kundu
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata, 700 120, West Bengal, India
| | - Archisman Ray
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata, 700 120, West Bengal, India
| | - Subhadeep Das Gupta
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata, 700 120, West Bengal, India
| | - Ayan Biswas
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata, 700 120, West Bengal, India
| | - Shreya Roy
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata, 700 120, West Bengal, India
| | - Nitish Kumar Tiwari
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata, 700 120, West Bengal, India
| | - V Santhana Kumar
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata, 700 120, West Bengal, India
| | - Basanta Kumar Das
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata, 700 120, West Bengal, India.
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Zhang D, Gan Y, Le L, Pu L. Epigenetic variation in maize agronomical traits for breeding and trait improvement. J Genet Genomics 2024:S1673-8527(24)00028-6. [PMID: 38310944 DOI: 10.1016/j.jgg.2024.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/28/2024] [Accepted: 01/29/2024] [Indexed: 02/06/2024]
Abstract
Epigenetics-mediated breeding (Epibreeding) involves engineering crop traits and stress responses through the targeted manipulation of key epigenetic features to enhance agricultural productivity. While conventional breeding methods raise concerns about reduced genetic diversity, epibreeding propels crop improvement through epigenetic variations that regulate gene expression, ultimately impacting crop yield. Epigenetic regulation in crops encompasses various modes, including histone modification, DNA modification, RNA modification, non-coding RNA, and chromatin remodeling. This review summarizes the epigenetic mechanisms underlying major agronomic traits in maize and identifies candidate epigenetic landmarks in the maize breeding process. We propose a valuable strategy for improving maize yield through epibreeding, combining CRISPR/Cas-based epigenome editing technology and Synthetic Epigenetics (SynEpi). Finally, we discuss the challenges and opportunities associated with maize trait improvement through epibreeding.
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Affiliation(s)
- Daolei Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; School of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia 010021, China
| | - Yujun Gan
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Liang Le
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Li Pu
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
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Sol Dourdin T, Guyomard K, Rabiller M, Houssais N, Cormier A, Le Monier P, Sussarellu R, Rivière G. Ancestors' Gift: Parental Early Exposure to the Environmentally Realistic Pesticide Mixture Drives Offspring Phenotype in a Larger Extent Than Direct Exposure in the Pacific Oyster, Crassostrea gigas. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:1865-1876. [PMID: 38217500 DOI: 10.1021/acs.est.3c08201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2024]
Abstract
Marine organisms are threatened by the presence of pesticides in coastal waters. Among them, the Pacific oyster is one of the most studied invertebrates in marine ecotoxicology where numerous studies highlighted the multiscale impacts of pesticides. In the past few years, a growing body of literature has reported the epigenetic outcomes of xenobiotics. Because DNA methylation is an epigenetic mark implicated in organism development and is meiotically heritable, it raises the question of the multigenerational implications of xenobiotic-induced epigenetic alterations. Therefore, we performed a multigenerational exposure to an environmentally relevant mixture of 18 pesticides (nominal sum concentration: 2.85 μg·L-1) during embryo-larval stages (0-48 hpf) of a second generation (F1) for which parents where already exposed or not in F0. Gene expression, DNA methylation, and physiological end points were assessed throughout the life cycle of individuals. Overall, the multigenerational effect has a greater influence on the phenotype than the exposure itself. Thus, multigenerational phenotypic effects were observed: individuals descending from exposed parents exhibited lower epinephrine-induced metamorphosis and field survival rates. At the molecular level, RNA-seq and Methyl-seq data analyses performed in gastrula embryos and metamorphosis-competent pediveliger (MCP) larvae revealed a clear F0 treatment-dependent discrimination. Some genes implicated into shell secretion and immunity exhibited F1:F0 treatment interaction patterns (e.g., Calm and Myd88). Those results suggest that low chronic environmental pesticide contamination can alter organisms beyond the individual scale level and have long-term adaptive implications.
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Affiliation(s)
- Thomas Sol Dourdin
- Ifremer, Unité Contamination Chimique des Ecosystèmes Marins, 44311 Cedex 03 Nantes, France
| | - Killian Guyomard
- Ifremer, Plateforme Mollusques Marins Bouin, 85029 Bouin, France
| | | | - Nina Houssais
- Ifremer, Unité Contamination Chimique des Ecosystèmes Marins, 44311 Cedex 03 Nantes, France
| | - Alexandre Cormier
- Ifremer, Service de Bioinformatique de l'Ifremer, 29280 Brest, France
| | - Pauline Le Monier
- Ifremer, Unité Contamination Chimique des Ecosystèmes Marins, 44311 Cedex 03 Nantes, France
| | - Rossana Sussarellu
- Ifremer, Physiologie et Toxines des Microalgues Toxiques, 44311 Cedex 03 Nantes, France
| | - Guillaume Rivière
- Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), UMR7208, Muséum 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
- BOREA, UFR des Sciences, Université de Caen-Normandie, Esplanade de la Paix, 14032 Caen Cedex, France
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8
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Trevisan R, Mello DF. Redox control of antioxidants, metabolism, immunity, and development at the core of stress adaptation of the oyster Crassostrea gigas to the dynamic intertidal environment. Free Radic Biol Med 2024; 210:85-106. [PMID: 37952585 DOI: 10.1016/j.freeradbiomed.2023.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 10/30/2023] [Accepted: 11/07/2023] [Indexed: 11/14/2023]
Abstract
This review uses the marine bivalve Crassostrea gigas to highlight redox reactions and control systems in species living in dynamic intertidal environments. Intertidal species face daily and seasonal environmental variability, including temperature, oxygen, salinity, and nutritional changes. Increasing anthropogenic pressure can bring pollutants and pathogens as additional stressors. Surprisingly, C. gigas demonstrates impressive adaptability to most of these challenges. We explore how ROS production, antioxidant protection, redox signaling, and metabolic adjustments can shed light on how redox biology supports oyster survival in harsh conditions. The review provides (i) a brief summary of shared redox sensing processes in metazoan; (ii) an overview of unique characteristics of the C. gigas intertidal habitat and the suitability of this species as a model organism; (iii) insights into the redox biology of C. gigas, including ROS sources, signaling pathways, ROS-scavenging systems, and thiol-containing proteins; and examples of (iv) hot topics that are underdeveloped in bivalve research linking redox biology with immunometabolism, physioxia, and development. Given its plasticity to environmental changes, C. gigas is a valuable model for studying the role of redox biology in the adaptation to harsh habitats, potentially providing novel insights for basic and applied studies in marine and comparative biochemistry and physiology.
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Affiliation(s)
- Rafael Trevisan
- Univ Brest, Ifremer, CNRS, IRD, UMR 6539, LEMAR, Plouzané, 29280, France
| | - Danielle F Mello
- Univ Brest, Ifremer, CNRS, IRD, UMR 6539, LEMAR, Plouzané, 29280, France.
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