1
|
He G, Liu X, Xu Y, Liu Y, Masanja F, Deng Y, Zhao L. Metabolic dysfunctions in pearl oysters following recurrent marine heatwaves. MARINE ENVIRONMENTAL RESEARCH 2024; 200:106641. [PMID: 39018818 DOI: 10.1016/j.marenvres.2024.106641] [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: 04/23/2024] [Revised: 06/29/2024] [Accepted: 07/06/2024] [Indexed: 07/19/2024]
Abstract
Marine heatwaves (MHWs) have become more frequent, intense and extreme in oceanic systems in the past decade, resulting in mass mortality events of marine invertebrates and devastating coastal marine ecosystems. While metabolic homeostasis is a fundamental requirement in stress tolerance, little is known about its role under intensifying MHWs conditions. Here, we investigated impacts of MHWs on the metabolism in pearl oysters (Pinctada maxima) - an ecologically and economically significant bivalve species in tropical ecosystems. Activities of digestive enzymes (gastric proteases, lipases, and amylases) did not significantly respond to various scenario of recurrent MHWs varying from 24 °C to 28 °C (moderate) and 32 °C (severe). The metabolomics analysis revealed nine and five key metabolism pathways under both MHWs scenarios. Specifically, pathways associated with energy metabolism were impaired by moderate MHWs, manifesting in downregulation of differential metabolite (The nicotinic acid and N-acetyl-glutamic acid). The content of CDP-ethanolamine was significantly decrease, and the perturbations of oxidative stress caused by the decreased of content of D-glutamine. Metabolites related to a suite of body functions (e.g., the lipid metabolism, biomineralization, and antioxidant defenses) showed significantly negative responses by severe MHWs. These findings reveal the metabolic impairments of marine bivalves when subjected to MHWs varying in intensity and frequency, implying cascading consequences which deserve further investigation.
Collapse
Affiliation(s)
- Guixiang He
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Xiaolong Liu
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Yang Xu
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Yong Liu
- Pearl Oyster Research Institute, Guangdong Ocean University, Zhanjiang, China
| | | | - Yuewen Deng
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Liqiang Zhao
- Fisheries College, Guangdong Ocean University, Zhanjiang, China; Guangdong Provincial Science and Technology Innovation Center of Marine Invertebrates, Guangdong Ocean University, Zhanjiang, China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Guangdong Ocean University, Zhanjiang, China.
| |
Collapse
|
2
|
Cunha M, Petrillo V, Madeira M, He Y, Coppola F, Meucci V, De Marchi L, Soares AMVM, Freitas R. The influence of temperature on the impacts of caffeine in mussels: Evaluating subcellular impacts and model predictions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 940:173453. [PMID: 38802017 DOI: 10.1016/j.scitotenv.2024.173453] [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: 02/14/2024] [Revised: 04/23/2024] [Accepted: 05/20/2024] [Indexed: 05/29/2024]
Abstract
In aquatic ecosystems, the presence of pharmaceuticals, particularly caffeine (CAF), has been linked to wastewater discharge, hospital waste, and the disposal of expired pharmaceutical products containing CAF. Additionally, rising temperatures due to climate change are anticipated in aquatic environments. This study aimed to assess the toxicity of various CAF concentrations under current (17 °C) and projected (21 °C) temperature conditions, using the mussel Mytilus galloprovincialis as a bioindicator species. Subcellular impacts were evaluated following 28 days of exposure to four CAF concentrations (0.5; 1.0; 5.0; 10.0 μg/L) at the control temperature (17 °C). Only effects at an environmentally relevant CAF concentration (5.0 μg/L) were assessed at the highest temperature (21 °C). The overall biochemical response of mussels was evaluated using non-metric Multidimensional Scaling (MDS) and the Integrated Biomarker Response (IBR) index, while the Independent Action (IA) model was used to compare observed and predicted responses. Results showed that at 17 °C, increased CAF concentrations were associated with higher metabolism and biotransformation capacity, accompanied by cellular damage at the highest concentration. Conversely, under warming conditions (21 °C), the induction of antioxidant enzymes was observed, although insufficient to prevent cellular damage compared to the control temperature. Regarding neurotoxicity, at 17 °C, the activity of the acetylcholinesterase enzyme was inhibited up to 5.0 μg/L; however, at 10.0 μg/L, activity increased, possibly due to CAF competition for adenosine receptors. The IA model identified a synergistic response for most parameters when CAF and warming acted together, aligning with observed results, albeit with slightly lower magnitudes.
Collapse
Affiliation(s)
- Marta Cunha
- Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Vincenzo Petrillo
- Department of Biology, University of Naples Federico II, 80126, Italy
| | - Madalena Madeira
- Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Yide He
- School of Environmental Science and Engineering, Nanjing Tech University, Jiangsu 211816, PR China; Sino-portuguese Joint International Laboratory of Aquatic Toxicology, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816 Jiangsu Province, China
| | - Francesca Coppola
- Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; Centre for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193 Aveiro, Portugal
| | - Valentina Meucci
- Department of Veterinary Sciences, University of Pisa, 56122 San Piero a Grado, PI, Italy
| | - Lucia De Marchi
- Department of Veterinary Sciences, University of Pisa, 56122 San Piero a Grado, PI, Italy
| | - Amadeu M V M Soares
- Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; Centre for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193 Aveiro, Portugal
| | - Rosa Freitas
- Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; Centre for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193 Aveiro, Portugal.
| |
Collapse
|
3
|
Gao C, Nie H. Exploring the Heat-Responsive miRNAs and their Target Gene Regulation in Ruditapes philippinarum Under Acute Heat Stress. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2024; 26:810-826. [PMID: 39046591 DOI: 10.1007/s10126-024-10348-2] [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: 04/30/2024] [Accepted: 07/13/2024] [Indexed: 07/25/2024]
Abstract
This study aimed to investigate the inherent molecular regulatory mechanisms of Ruditapes philippinarum in response to extremely high-temperature environments and to enhance the sustainable development of the R. philippinarum aquaculture industry. In this study, we established a differential expression profile of miRNA under acute heat stress and identified a total of 46 known miRNAs and 80 novel miRNAs, three of which were detected to be significantly differentially expressed. We analyzed the functions of target genes regulated by differentially expressed miRNAs (DEMs) of R. philippinarum. The findings of the KEGG enrichment analysis revealed that 29 enriched pathways in the group were subjected to acute heat stress. Notably, fatty acid metabolism, FoxO signaling pathway, TGF-β signaling pathway, and ubiquitin-mediated proteolysis were found to play significant roles in response to acute heat stress. We established a regulatory map of DEMs and their target genes in response to heat stress and constructed the miRNA-mRNA regulation network. This study provides valuable insights into the response of R. philippinarum to high temperature, helping to understand its underlying molecular regulatory mechanisms under high-temperature stress.
Collapse
Affiliation(s)
- Changsheng Gao
- College of Fisheries and Life Science, Dalian Ocean University, Dalian, 116023, China
- Engineering and Technology Research Center of Shellfish Breeding in Liaoning Province, Dalian Ocean University, Dalian, 116023, China
| | - Hongtao Nie
- College of Fisheries and Life Science, Dalian Ocean University, Dalian, 116023, China.
- Engineering and Technology Research Center of Shellfish Breeding in Liaoning Province, Dalian Ocean University, Dalian, 116023, China.
| |
Collapse
|
4
|
Liu T, Nie H, Ding J, Huo Z, Yan X. Physiological and transcriptomic analysis provides new insights into osmoregulation mechanism of Ruditapes philippinarum under low and high salinity stress. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 935:173215. [PMID: 38750748 DOI: 10.1016/j.scitotenv.2024.173215] [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: 02/05/2024] [Revised: 04/23/2024] [Accepted: 05/11/2024] [Indexed: 05/25/2024]
Abstract
The Manila clam (Ruditapes philippinarum) is a commercially important marine bivalve, which inhabits the estuarine and mudflat areas. The osmoregulation is of great significance for molluscs adaptation to salinity fluctuations. In this study, we investigated the effects of low salinity (10 psu) and high salinity (40 psu) stress on survival and osmoregulation of the R. philippinarum. The results of physiological parameters showed that the ion (Na+, K+, Cl-) concentrations and Na+/K+-ATPase (NKA) activity of R. philippinarum decreased significantly under low salinity stress, but increased significantly under high salinity stress, indicating that there are differences in physiological adaptation of osmoregulation of R. philippinarum. In addition, we conducted the transcriptome analysis in the gills of R. philippinarum exposed to low (10 psu) and high (40 psu) salinity challenge for 48 h using RNA-seq technology. A total of 153 and 640 differentially expressed genes (DEGs) were identified in the low salinity (LS) group and high salinity (HS) group, respectively. The immune (IAP, TLR6, C1QL4, Ank3), ion transport (Slc34a2, SLC39A14), energy metabolism (PCK1, LDLRA, ACOX1) and DNA damage repair-related genes (Gadd45g, HSP70B2, GATA4) as well as FoxO, protein processing in endoplasmic reticulum and endocytosis pathways were involved in osmoregulation under low salinity stress of R. philippinarum. Conversely, the ion transport (SLC6A7, SLC6A9, SLC6A14, TRPM2), amino acid metabolism (GS, TauD, ABAT, ALDH4A1) and immune-related genes (MAP2K6, BIRC7A, CTSK, GVIN1), and amino acid metabolism pathways (beta-Alanine, Alanine, aspartate and glutamate, Glutathione) were involved in the process of osmoregulation under high salinity stress. The results obtained here revealed the difference of osmoregulation mechanism of R. philippinarum under low and high salinity stress through physiological and molecular levels. This study contributes to the assessment of salinity adaptation of bivalves in the context of climate change and provides useful information for marine resource conservation and aquaculture.
Collapse
Affiliation(s)
- Tao Liu
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China; Engineering and Technology Research Center of Shellfish Breeding in Liaoning Province, Dalian Ocean University, Dalian 116023, China
| | - Hongtao Nie
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China; Engineering and Technology Research Center of Shellfish Breeding in Liaoning Province, Dalian Ocean University, Dalian 116023, China.
| | - Jianfeng Ding
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China; Engineering and Technology Research Center of Shellfish Breeding in Liaoning Province, Dalian Ocean University, Dalian 116023, China
| | - Zhongming Huo
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China; Engineering and Technology Research Center of Shellfish Breeding in Liaoning Province, Dalian Ocean University, Dalian 116023, China.
| | - Xiwu Yan
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China; Engineering and Technology Research Center of Shellfish Breeding in Liaoning Province, Dalian Ocean University, Dalian 116023, China
| |
Collapse
|
5
|
della Malva A, Santillo A, Francavilla M, Caroprese M, Marino R, Sevi A, Albenzio M. Mussel Culture Farming Systems in the Northern Gargano Coast (Adriatic Sea): Changes in the Nutritional Profile of the Mytilus galloprovincialis. Foods 2024; 13:2205. [PMID: 39063289 PMCID: PMC11275957 DOI: 10.3390/foods13142205] [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: 05/13/2024] [Revised: 07/04/2024] [Accepted: 07/11/2024] [Indexed: 07/28/2024] Open
Abstract
The objective of this study was to investigate the nutritional characteristics of Mytilus galloprovincialis cultivated in three sites of the Northern Coastal Area of Gargano. The mussel farms were characterized by different distances of dropper ropes (extensive dropper ropes: EDR; intensive dropper ropes: IDR; semi-intensive dropper ropes: SIDR). Mussels' chemical composition, fatty acids, and amino acids profiles were investigated at monthly intervals, from April to June. The fat content of mussels from EDR and SIDR sites was lower than values observed for mussels of the IDR in both the April and June sampling months. An increase in the main saturated fatty acids (C15:0; C16:0; C17:0 and C18:0; p < 0.001) and polyunsaturated fatty acids (C18:2c9c12, C18:3n3, C20:2n6, C20:4n6, and C22:6n3; p < 0.001) was found in the mussels collected in June from all farms analyzed. In terms of farming systems, mussels from the EDR and SIDR sites exhibited the greatest content of beneficial molecules like conjugated linoleic acids isomers (p < 0.001), glutamic acid (p < 0.05), serine (p < 0.05), tryptophan (p < 0.001), hydroxyproline (p < 0.05) and proline (p < 0.01). This study revealed that the farming system can affect the nutritional composition of mussels and evidenced that EDR and SIDR are the most effective cultured farming methods in the Gargano area.
Collapse
Affiliation(s)
- Antonella della Malva
- Department of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, 71121 Foggia, Italy; (A.S.); (M.F.); (M.C.); (R.M.); (A.S.); (M.A.)
| | - Antonella Santillo
- Department of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, 71121 Foggia, Italy; (A.S.); (M.F.); (M.C.); (R.M.); (A.S.); (M.A.)
| | - Matteo Francavilla
- Department of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, 71121 Foggia, Italy; (A.S.); (M.F.); (M.C.); (R.M.); (A.S.); (M.A.)
- STAR Integrated Research Unit, University of Foggia, 71121 Foggia, Italy
| | - Mariangela Caroprese
- Department of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, 71121 Foggia, Italy; (A.S.); (M.F.); (M.C.); (R.M.); (A.S.); (M.A.)
| | - Rosaria Marino
- Department of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, 71121 Foggia, Italy; (A.S.); (M.F.); (M.C.); (R.M.); (A.S.); (M.A.)
| | - Agostino Sevi
- Department of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, 71121 Foggia, Italy; (A.S.); (M.F.); (M.C.); (R.M.); (A.S.); (M.A.)
| | - Marzia Albenzio
- Department of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, 71121 Foggia, Italy; (A.S.); (M.F.); (M.C.); (R.M.); (A.S.); (M.A.)
| |
Collapse
|
6
|
Fu B, Fang C, Li Z, Zeng Z, He Y, Chen S, Yang H. The Effect of Heat Stress on Sensory Properties of Fresh Oysters: A Comprehensive Study Using E-Nose, E-Tongue, Sensory Evaluation, HS-SPME-GC-MS, LC-MS, and Transcriptomics. Foods 2024; 13:2004. [PMID: 38998512 PMCID: PMC11241022 DOI: 10.3390/foods13132004] [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: 05/17/2024] [Revised: 06/14/2024] [Accepted: 06/21/2024] [Indexed: 07/14/2024] Open
Abstract
Heat stress has received growing concerns regarding the impact on seafood quality. However, the effects of heat stress on the sensory properties of seafood remain unknown. In this study, the sensory properties of fresh oyster (Crassostrea ariakensis) treated with chronic heat stress (30 °C) for 8 weeks were characterized using electronic nose, electronic tongue, sensory evaluation, HS-SPME-GC-MS, LC-MS and transcriptomics. Overall, chronic heat stress reduced the overall sensory properties of oysters. The metabolic network constructed. based on enrichment results of 423 differential metabolites and 166 differentially expressed genes, showed that the negative effects of chronic heat stress on the sensory properties of oysters were related to oxidative stress, protein degradation, lipid oxidation, and nucleotide metabolism. The results of the study provide valuable insights into the effects of heat stress on the sensory properties of oysters, which are important for ensuring a sustainable supply of high-quality seafood and maintaining food safety.
Collapse
Affiliation(s)
- Bing Fu
- College of Marine Sciences, South China Agricultural University, Guangzhou 510640, China
- Zhongshan Innovation Center of South China Agricultural University, Zhongshan 528400, China
| | - Chang Fang
- College of Marine Sciences, South China Agricultural University, Guangzhou 510640, China
- Zhongshan Innovation Center of South China Agricultural University, Zhongshan 528400, China
| | - Zhongzhi Li
- College of Marine Sciences, South China Agricultural University, Guangzhou 510640, China
- Zhongshan Innovation Center of South China Agricultural University, Zhongshan 528400, China
| | - Zeqian Zeng
- College of Marine Sciences, South China Agricultural University, Guangzhou 510640, China
- Zhongshan Innovation Center of South China Agricultural University, Zhongshan 528400, China
| | - Yinglin He
- College of Marine Sciences, South China Agricultural University, Guangzhou 510640, China
- Zhongshan Innovation Center of South China Agricultural University, Zhongshan 528400, China
| | - Shijun Chen
- College of Marine Sciences, South China Agricultural University, Guangzhou 510640, China
- Zhongshan Innovation Center of South China Agricultural University, Zhongshan 528400, China
| | - Huirong Yang
- College of Marine Sciences, South China Agricultural University, Guangzhou 510640, China
- Zhongshan Innovation Center of South China Agricultural University, Zhongshan 528400, China
| |
Collapse
|
7
|
Zheng J, Li S, Zheng X. Living in a dynamic environment: The effects of multi-ways temperature variation on embryo and newborn juveniles of a shallow-water octopus (Amphioctopus fangsiao). THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 923:171510. [PMID: 38453076 DOI: 10.1016/j.scitotenv.2024.171510] [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: 10/24/2023] [Revised: 02/27/2024] [Accepted: 03/03/2024] [Indexed: 03/09/2024]
Abstract
Shallow waters are characterized by fluctuating environmental conditions, modulating marine life cycles and biological phenomena. Multiple variations in water temperature could affect eggs and embryos during spawning events of many marine invertebrate species, yet most of the findings on embryonic development in invertebrates come from experiments based on the constant temperature. In this study, to examine the effects of temperature variation on octopus embryos, Amphioctopus fangsiao, a common shallow-water octopus along the coast of China, was exposed to the constant temperature (18 °C, in situ temperature of the seawater in Lianyungang), ramping temperatures (from 18 to 24 °C), diel oscillating temperatures (18 °C and 20 °C for 12 h each day), and acute increasing temperatures (the temperature increased sharply from 18 °C to 24 °C at embryonic development stage XIX) for 47 days (from embryogenesis to settlement). The results demonstrated that the temperature variations accelerated the development time of A. fangsiao embryos. Temperature fluctuations could cause embryonic oxidative damage and disorder of glycolipid metabolism, thereby affecting the growth performance of embryos and the survival rate of hatchings. Through transcriptome sequencing, the mechanistic adaption of the embryo to environmental temperature variations was revealed. The pathways involved in the TCA cycle, DNA replication and repair, protein synthesis, cell signaling, and nervous system damage repair were significantly enriched, indicating that the embryo could improve heat tolerance to thermal stress by regulating gene expression. Moreover, acute warming temperatures posed the most detrimental effects on A. fangsiao embryos, which could cause embryos to hatch prematurely from the vegetal pole, further reducing the survival of hatchings. Meanwhile, the diel oscillating temperature was observed to affect the normal morphology of the embryo, resulting in embryo deformities. Thus, the constant temperature is critical for balanced growth and defense status in octopuses by maintaining metabolism homeostasis. For the first time, this study evaluates the effects of multiple temperature fluctuations on embryos of A. fangsiao, providing new insights into the physiological changes and molecular responses of cephalopod embryos following dynamic temperature stress.
Collapse
Affiliation(s)
- Jian Zheng
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China; Institute of Evolution & Marine Biodiversity (IEMB), Ocean University of China, Qingdao 266003, China; Key Laboratory of Evolution & Marine Biodiversity, Ministry of Education, Ocean University of China, Qingdao 266003, China
| | - Shuwen Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China; Institute of Evolution & Marine Biodiversity (IEMB), Ocean University of China, Qingdao 266003, China; Key Laboratory of Evolution & Marine Biodiversity, Ministry of Education, Ocean University of China, Qingdao 266003, China
| | - Xiaodong Zheng
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China; Institute of Evolution & Marine Biodiversity (IEMB), Ocean University of China, Qingdao 266003, China; Key Laboratory of Evolution & Marine Biodiversity, Ministry of Education, Ocean University of China, Qingdao 266003, China.
| |
Collapse
|
8
|
Li H, Nie H, Li D, Wang B, Huo Z, Su Y, Yan X. Transcriptome analysis provides new insights into the immune response of Ruditapes philippinarum infected with Vibrio alginolyticus. FISH & SHELLFISH IMMUNOLOGY 2024; 148:109468. [PMID: 38432537 DOI: 10.1016/j.fsi.2024.109468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/17/2024] [Accepted: 02/25/2024] [Indexed: 03/05/2024]
Abstract
Manila clam (Ruditapes philippinarum) is a bivalve species with commercial value, but it is easily infected by pathogenic microorganisms in aquaculture, which restricts the shellfish industry. Notably, the impact of Vibrio alginolyticus on clam culture is obvious. In this study, RNA-seq was performed to analyze clam hepatopancreas tissue in 48 h (challenge group, G48h) and 96 h (challenge group, G96h) after infection with V. alginolyticus and 0 h after injection of PBS (control group, C). The results showed that a total of 1670 differentially expressed genes were detected in the G48h vs C group, and 1427 differentially expressed genes were detected in the G96h vs C group. In addition, KEGG analysis showed that DEGs were significantly enriched in pathways such as Lysosome and Mitophagy. Moreover, 15 immune related DEGs were selected for qRT-PCR analysis to verify the accuracy of RNA-seq, and the results showed that the expression level of DEGs was consistent with that of RNA-seq. Therefore, the results obtained in this study provides a preliminary understanding of the immune defense of R. philippinarum and molecular insights for genetic breeding of V. alginolyticus resistance in Manila clam.
Collapse
Affiliation(s)
- Hongda Li
- College of Fisheries and Life Science, Dalian Ocean University, 116023 Dalian, China; Engineering Research Center of Shellfish Culture and Breeding in Liaoning Province, Dalian Ocean University, 116023 Dalian, China
| | - Hongtao Nie
- College of Fisheries and Life Science, Dalian Ocean University, 116023 Dalian, China; Engineering Research Center of Shellfish Culture and Breeding in Liaoning Province, Dalian Ocean University, 116023 Dalian, China.
| | - Dongdong Li
- College of Fisheries and Life Science, Dalian Ocean University, 116023 Dalian, China; Engineering Research Center of Shellfish Culture and Breeding in Liaoning Province, Dalian Ocean University, 116023 Dalian, China
| | - Bin Wang
- Dalian Jintuo Aquatic Food Co., Ltd, 116000 Dalian, China
| | - Zhongming Huo
- College of Fisheries and Life Science, Dalian Ocean University, 116023 Dalian, China; Engineering Research Center of Shellfish Culture and Breeding in Liaoning Province, Dalian Ocean University, 116023 Dalian, China
| | - Yanming Su
- College of Fisheries and Life Science, Dalian Ocean University, 116023 Dalian, China.
| | - Xiwu Yan
- College of Fisheries and Life Science, Dalian Ocean University, 116023 Dalian, China; Engineering Research Center of Shellfish Culture and Breeding in Liaoning Province, Dalian Ocean University, 116023 Dalian, China
| |
Collapse
|
9
|
Ren J, Liu S, Zhang Q, Zhang Z, Shang S. Effects of cadmium exposure on haemocyte immune function of clam Ruditapes philippinarum at different temperatures. MARINE ENVIRONMENTAL RESEARCH 2024; 195:106375. [PMID: 38266548 DOI: 10.1016/j.marenvres.2024.106375] [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: 10/10/2023] [Revised: 01/07/2024] [Accepted: 01/19/2024] [Indexed: 01/26/2024]
Abstract
Haemocytes are crucial for the immune defence of mollusks. It is important to explore the immune performance of haemocytes of mollusks under the stress of heavy metals with global warming. In order to study the effects of cadmium (Cd) exposure and temperature stress on the haemocyte immune function of clam Ruditapes philippinarum, clams were exposed to different Cd concentrations (0.05, 0.10 and 0.25 mg/L) at 20 °C, 25 °C and 30 °C respectively. Haemocyte mortality, reactive oxygen species (ROS) and superoxide dismutase (SOD) activity were measured at day 1, day 3, day 5 and day 7. The results showed that the changes of the three indexes were not obvious when exposed to 0.05 mg/L of Cd at 20 °C, while significant differences were observed with the increase of temperature, Cd concentration and exposure time. Under a condition of relative high temperature coupling with high concentration of Cd, the clams were significantly influenced, showing an obvious synergistic effect. Selected indexes reflect the clam's response to the combined stress of temperature and Cd. Moreover, R. philippinarum might be an ideal biological index species to the Cd pollution.
Collapse
Affiliation(s)
- Jiayun Ren
- College of Biological and Environmental Engineering, Shandong University of Aeronautics, 256600, China.
| | - Suijun Liu
- Binzhou Ecological Environment Monitoring Center of Shandong Province, Binzhou, 256600, China
| | - Qiong Zhang
- College of Biological and Environmental Engineering, Shandong University of Aeronautics, 256600, China
| | - Zaiwang Zhang
- College of Biological and Environmental Engineering, Shandong University of Aeronautics, 256600, China.
| | - Shuai Shang
- College of Biological and Environmental Engineering, Shandong University of Aeronautics, 256600, China
| |
Collapse
|
10
|
García-Souto D, Martínez-Mariño V, Morán P, Olabarria C, Vázquez E. Hiding from heat: The transcriptomic response of two clam species is modulated by behaviour and habitat. J Therm Biol 2024; 119:103776. [PMID: 38163416 DOI: 10.1016/j.jtherbio.2023.103776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 12/08/2023] [Accepted: 12/09/2023] [Indexed: 01/03/2024]
Abstract
Rising occurrence of extreme warming events are profoundly impacting ecosystems, altering their functioning and services with significant socio-economic consequences. Particularly susceptible to heatwaves are intertidal shellfish beds, located in estuarine areas already stressed by factors such as rainfall events, red tides, eutrophication, and pollution. In Galicia, Northwestern Spain, these beds support vital shellfisheries, featuring the native clam Ruditapes decussatus and the non-indigenous R. philippinarum. Over recent decades, these populations have experienced notable abundance shifts due to various anthropogenic impacts, including climate change. In this habitat, patches of the seagrass Zostera noltei that coexist with bare sand can act as thermal refuges for benthic organisms such as clams. To assess the impact of heatwaves on these ecosystems, a mesocosm experiment was conducted. Juveniles of both clam species in two habitat types-bare sand and sand with Z. noltei-were exposed to simulated atmospheric heatwaves during diurnal low tide for four consecutive days. Subsequent transcriptomic analysis revealed that high temperatures had a more pronounced impact on the transcriptome of R. philippinarum compared to R. decussatus. The habitat type played a crucial role in mitigating heat stress in R. philippinarum, with the presence of Z. noltei notably ameliorating the transcriptomic response. These findings have direct applications in shellfishery management, emphasizing the importance of preserving undisturbed patches of Z. noltei as thermal refuges, contributing to the mitigation of heatwave effects on shellfish populations.
Collapse
Affiliation(s)
- Daniel García-Souto
- Genomas y Enfermedad, Centro Singular de Investigación en Medicina Molecular y Enfermedades Crónicas, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain; Departamento de Zoología, Genética y Antropología Física, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain.
| | - Víctor Martínez-Mariño
- Centro de Investigación Mariña (CIM) and Departamento de Bioquímica, Xenética e Inmunoloxía, Facultade de Bioloxía, Universidade de Vigo, 36310, Vigo, Spain.
| | - Paloma Morán
- Centro de Investigación Mariña (CIM) and Departamento de Bioquímica, Xenética e Inmunoloxía, Facultade de Bioloxía, Universidade de Vigo, 36310, Vigo, Spain.
| | - Celia Olabarria
- Centro de Investigación Mariña (CIM) and Departamento de Ecoloxía e Bioloxía Animal, Facultade de Ciencias do Mar, Universidade de Vigo, 36310, Vigo, Spain.
| | - Elsa Vázquez
- Centro de Investigación Mariña (CIM) and Departamento de Ecoloxía e Bioloxía Animal, Facultade de Ciencias do Mar, Universidade de Vigo, 36310, Vigo, Spain.
| |
Collapse
|
11
|
Zheng Z, Huo Z, Huang K, Jiang M, Yan X, Liu Y, Qin Y. Metabolic adaptation of the clam Ruditapes philippinarum during air exposure and the positive effects of sodium nitroprusside pretreatment. Front Physiol 2023; 14:1308777. [PMID: 38162826 PMCID: PMC10756084 DOI: 10.3389/fphys.2023.1308777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 11/15/2023] [Indexed: 01/03/2024] Open
Abstract
The Manila clam (Ruditapes philippinarum), as one of the shellfish living in the intertidal zone, is known for its strong ability to withstand air exposure. Sodium nitroprusside (SNP), a donor of nitric oxide (NO), has been shown to be useful for antioxidant and immune regulation in aquatic animals. In this study, an untargeted metabolomics (LC-MS/MS) technique was employed for the first time in Manila clam to analyze the metabolic and histological impacts after air exposure and the positive effects of SNP pretreatment. During air exposure, a significant increase in taurine, L-glutamate, and several polyunsaturated fatty acids in clams was detected, which indicates that clams may experience inflammatory reactions, oxidative stress, and an increase in blood ammonia content. When clams were exposed to SNP for 6 h, arginine, spermine, L-glutamic acid, and glutathione content were all upregulated, indicating that the SNP exposure induced NO production and improved antioxidant capacity in clams. When the clams were exposed to air after SNP pretreatment, there were no significant differences in the levels of taurine, L-glutamate, or aliphatic acids between the experimental and control groups. Gill tissue was more severely damaged in clams directly exposed to air than in those that experienced air exposure after SNP pretreatment, especially in clams exposed to air for a long time (72 h). Both metabolomics and tissue section structure indicated that SNP pretreatment decreased the stress responses caused by air exposure in R. philippinarum. These findings provided fresh insights and a theoretical foundation for understanding the tolerance to air exposure and physiological functions of SNP (or NO) in R. philippinarum.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Yanjie Qin
- Engineering and Technology Research Center of Shellfish Breeding in Liaoning Province, College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
| |
Collapse
|
12
|
Wang Y, Bao X, Wang W, Xu X, Liu X, Li Z, Yang J, Yuan T. Exploration of anti-stress mechanisms in high temperature exposed juvenile golden cuttlefish ( Sepia esculenta) based on transcriptome profiling. Front Physiol 2023; 14:1189375. [PMID: 37234426 PMCID: PMC10206265 DOI: 10.3389/fphys.2023.1189375] [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: 03/19/2023] [Accepted: 04/28/2023] [Indexed: 05/28/2023] Open
Abstract
Sepia esculenta is a cephalopod widely distributed in the Western Pacific Ocean, and there has been growing research interest due to its high economic and nutritional value. The limited anti-stress capacity of larvae renders challenges for their adaptation to high ambient temperatures. Exposure to high temperatures produces intense stress responses, thereby affecting survival, metabolism, immunity, and other life activities. Notably, the molecular mechanisms by which larval cuttlefish cope with high temperatures are not well understood. As such, in the present study, transcriptome sequencing of S. esculenta larvae was performed and 1,927 differentially expressed genes (DEGs) were identified. DEGs were subjected to functional enrichment analyses using the Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) databases. The top 20 terms of biological processes in GO and 20 high-temperature stress-related pathways in KEGG functional enrichment analysis were identified. A protein-protein interaction network was constructed to investigate the interaction between temperature stress-related genes. A total of 30 key genes with a high degree of participation in KEGG signaling pathways or protein-protein interactions were identified and subsequently validated using quantitative RT-PCR. Through a comprehensive analysis of the protein-protein interaction network and KEGG signaling pathway, the functions of three hub genes (HSP90AA1, PSMD6, and PSMA5), which belong to the heat shock protein family and proteasome, were explored. The present results can facilitate further understanding of the mechanism of high temperature resistance in invertebrates and provide a reference for the S. esculenta industry in the context of global warming.
Collapse
Affiliation(s)
- Yongjie Wang
- School of Agriculture, Ludong University, Yantai, China
| | - Xiaokai Bao
- School of Agriculture, Ludong University, Yantai, China
| | - Weijun Wang
- School of Agriculture, Ludong University, Yantai, China
| | - Xiaohui Xu
- School of Agriculture, Ludong University, Yantai, China
| | - Xiumei Liu
- College of Life Sciences, Yantai University, Yantai, China
| | - Zan Li
- School of Agriculture, Ludong University, Yantai, China
| | - Jianmin Yang
- School of Agriculture, Ludong University, Yantai, China
| | - Tingzhu Yuan
- School of Agriculture, Ludong University, Yantai, China
- Marine Economy Promotion Center of Changdao County Marine Ecological Civilization Comprehensive Experimental Zone, Yantai, China
| |
Collapse
|
13
|
Transient receptor potential (TRP) channels in the Manila clam (Ruditapes philippinarum): Characterization and expression patterns of the TRP gene family under heat stress in Manila clams based on genome-wide identification. Gene 2023; 854:147112. [PMID: 36513188 DOI: 10.1016/j.gene.2022.147112] [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: 10/02/2022] [Revised: 11/25/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022]
Abstract
In this study, we identified a total of 40 transient receptor potential genes (RpTRP) in Manila clam by genome-wide identification and classified them into four categories (TRPV, TRPA, TRPM, TRPC) based on gene structure and subfamily relationships. The protein length of RpTRP genes ranges from 281 amino acids to 1601 amino acids. Molecular weight and theoretical PI values range from 182.82 kDa to 32.43 kDa, respectively, with PI values between 5.17 and 9.25. By comparing the expression profiles of TRP genes during heat stress in Manila clams at different latitudes, we found that most genes in the TRP gene family were up-regulated in expression during heat challenge. Therefore, we determined that TRP genes have an important role in the heat stress of Manila clams. This work provides a basis for further studies on the molecular mechanisms of TRP-mediated heat tolerance in Manila clam and for explaining differences in heat tolerance in Manila clam at different latitudes through key differential TRP genes at the molecular level.
Collapse
|