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Wang X, Li F, Meng X, Xia C, Ji C, Wu H. Abnormality of mussel in the early developmental stages induced by graphene and triphenyl phosphate: In silico toxicogenomic data-mining, in vivo, and toxicity pathway-oriented approach. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 263:106674. [PMID: 37666107 DOI: 10.1016/j.aquatox.2023.106674] [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: 06/27/2023] [Revised: 08/25/2023] [Accepted: 08/27/2023] [Indexed: 09/06/2023]
Abstract
Increasing number of complex mixtures of organic pollutants in coastal area (especially for nanomaterials and micro/nanoplastics associated chemicals) threaten aquatic ecosystems and their joint hazards are complex and demanding tasks. Mussels are the most sensitive marine faunal groups in the world, and their early developmental stages (embryo and larvae) are particularly susceptible to environmental contaminants, which can distinguish the probable mechanisms of mixture-induced growth toxicity. In this study, the potential critical target and biological processes affected by graphene and triphenyl phosphate (TPP) were developed by mining public toxicogenomic data. And their combined toxic effects were verified by toxicological assay at early developmental stages in filter-feeding mussels (embryo and larvae). It showed that interactions among graphene/TPP with 111 genes (ABCB1, TP53, SOD, CAT, HSP, etc.) affected phenotypes along conceptual framework linking these chemicals to developmental abnormality endpoints. The PPAR signaling pathway, monocarboxylic acid metabolic process, regulation of lipid metabolic process, response to oxidative stress, and gonad development were noted as the key molecular pathways that contributed to the developmental abnormality. Enriched phenotype analysis revealed biological processes (cell proliferation, cell apoptosis, inflammatory response, response to oxidative stress, and lipid metabolism) affected by the investigated mixture. Combined, our results supported that adverse effects induced by contaminants/ mixture could not only be mediated by single receptor signaling or be predicted by the simple additive effect of contaminants. The results offer a framework for better comprehending the developmental toxicity of environmental contaminants in mussels and other invertebrate species, which have considerable potential for hazard assessment of coastal mixture.
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Affiliation(s)
- Xiaoqing Wang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Fei Li
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, PR China.
| | - Xiangjing Meng
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Chunlei Xia
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, PR China
| | - Chenglong Ji
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, PR China
| | - Huifeng Wu
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, PR China
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Li C, Wang Y, Wei M, Wang X. The involvement of a novel calmodulin-like protein isoform from oyster Crassostrea gigas in transcription factor regulation provides new insight into acclimation to ocean acidification. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 257:106423. [PMID: 36822075 DOI: 10.1016/j.aquatox.2023.106423] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 02/06/2023] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Marine organisms need to adapt to improve organismal fitness under ocean acidification (OA). Recent studies have shown that marine calcifiers can achieve acclimation by stimulating calcium binding/signaling pathways. Here, a CaM-like gene (CgCaLP-2) from oyster Crassostrea gigas which typically responded to long-term CO2 exposure (two months) rather than short-term exposure (one week) was characterized. The cloned cDNA was 678 bp and was shorter than the retrieved sequence from NCBI (1125 bp). The two sequences, designated as CgCaLP-2-v1 and CgCaLP-2-v2, were demonstrated to be different splice variants by the genome sequence analysis. Western blotting analysis revealed two bands of 23 kD and 43 kD in mantle and hemocytes, corresponding to predicted molecular weight of CgCaLP-2-v1 and CgCaLP-2-v2, respectively. The isoform CgCaLP-2-v1 (the 23 kD band) was highly stimulated in response to long-term CO2 exposure (42-day and 56-day treatment) in hemocytes and mantle tissue. The fluorescence signal of CgCaLP-2 in mantle and hemocytes became more intensive after long-term CO2 exposure. Besides, in hemocytes, CgCaLP-2 presented a higher localization on the nuclear membrane after long-term CO2 exposure (56 d). The target gene network of CgCaLP-2 was predicted, and a transcription factor (TF) gene annotated as Homeobox protein SIX4 (CgSIX4) showed a similar expressive trend to CgCaLP-2 during CO2 exposure. Suppression of CgCaLP-2 via RNA interference significantly reduced the mRNA expression of CgSIX4. The results suggested that CgCaLP-2 might mediate the Ca2+-CaLP-TF signal transduction pathway under long-term CO2 exposure. This study serves as an example to reveal that alternative splicing is an important mechanism for generation multiple protein isoforms and thus shape the plastic responses under CO2 exposure, providing new insight into the potential acclimation ability of marine calcifiers to future OA.
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Affiliation(s)
- Changmei Li
- Shandong Provincial Key Laboratory of Biochemical Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yilin Wang
- Shandong Provincial Key Laboratory of Biochemical Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Manman Wei
- Shandong Provincial Key Laboratory of Biochemical Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xiudan Wang
- Shandong Provincial Key Laboratory of Biochemical Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China.
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3
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Pötter L, Krebs N, Horstmann M, Tollrian R, Weiss LC. Long-term effects of elevated pCO 2 levels on the expression of Chaoborus-induced defences in Daphnia pulex. ZOOLOGY 2021; 146:125909. [PMID: 33780896 DOI: 10.1016/j.zool.2021.125909] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 02/21/2021] [Accepted: 02/22/2021] [Indexed: 12/12/2022]
Abstract
Increased carbon dioxide from fossil fuel combustion results in an enrichment of CO2 in the global carbon cycle. Recent evidence indicates that rising atmospheric CO2 impacts the partial pressure of carbon dioxide (pCO2) in freshwaters. This affects freshwater biota by disrupting chemical communication between predator and prey. One such well-described predator-prey interaction is the phantom midge larva Chaoborus preying on the freshwater crustacean Daphnia pulex. To counter Chaoborus predation, D. pulex develops defensive neckteeth in response to chemical cues. The strength of neckteeth expression is reduced when D. pulex experience elevated pCO2 levels. This is discussed to directly impair predator perception and results in reduced defence expression. However, it is not known whether there are also long-term effects associated with continuous elevated pCO2. Here, we investigated the effect of long-term exposure of D. pulex to elevated pCO2 levels in a life-table experiment over three generations. Using a flow-through system, we continuously exposed D. pulex to cues released by the predatory larva Chaoborus and control or elevated pCO2 levels. We determined morphological defence expression in the 2nd juvenile instar and the number of neonates as a measure for life-history traits over three successive generations. We detected that elevated pCO2 significantly reduces the expression of predator-induced morphological defences (i.e. neckteeth) and life-history parameters (i.e. number of neonates) in successive generations. Our data clearly show that at least three generations become more vulnerable to predation without indications of transgenerational acclimation. As Daphnia is a keystone grazer of freshwater ecosystems, this may destabilise population growth rates. In conclusion, long-term effects of pCO2-induced reduction of predator-induced plasticity may significantly affect trophic interactions.
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Affiliation(s)
- Leonie Pötter
- Department of Animal Ecology, Evolution & Biodiversity, Ruhr-University Bochum, NDEF, Universitaetsstraße 150, D-44780 Bochum, Germany.
| | - Nina Krebs
- Department of Animal Ecology, Evolution & Biodiversity, Ruhr-University Bochum, NDEF, Universitaetsstraße 150, D-44780 Bochum, Germany; Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Department for Integrative Ecophysiology, Am Handelshafen 12, E-1555, 27570 Bremerhaven, Germany.
| | - Martin Horstmann
- Department of Animal Ecology, Evolution & Biodiversity, Ruhr-University Bochum, NDEF, Universitaetsstraße 150, D-44780 Bochum, Germany.
| | - Ralph Tollrian
- Department of Animal Ecology, Evolution & Biodiversity, Ruhr-University Bochum, NDEF, Universitaetsstraße 150, D-44780 Bochum, Germany.
| | - Linda C Weiss
- Department of Animal Ecology, Evolution & Biodiversity, Ruhr-University Bochum, NDEF, Universitaetsstraße 150, D-44780 Bochum, Germany.
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Roznere I, Sinn BT, Daly M, Watters GT. Freshwater mussels (Unionidae) brought into captivity exhibit up-regulation of genes involved in stress and energy metabolism. Sci Rep 2021; 11:2241. [PMID: 33500457 PMCID: PMC7838317 DOI: 10.1038/s41598-021-81856-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 12/31/2020] [Indexed: 01/30/2023] Open
Abstract
Approximately two thirds of freshwater mussel species in the United States and Canada are imperiled, and populations are declining rapidly. Translocation and captive management are commonly used to mitigate losses of freshwater mussel biodiversity, but these conservation tools may result in decreased growth and increased mortality. This study uses RNA-Seq to determine how translocation into captivity affects gene expression in Amblema plicata. Mussels were collected from the Muskingum River in Ohio, USA and brought into a captive holding facility. RNA was extracted from gill tissue 11 months post translocation from mussels in captivity and the Muskingum River on the same day. RNA was sequenced on an Illumina HiSeq 2500, and differential expression analysis was performed on de novo assembled transcripts. More than 1200 transcripts were up-regulated in captive mussels, and 246 were assigned functional annotations. Many up-regulated transcripts were involved in energy metabolism and the stress response, such as heat shock proteins and antioxidants. More than 500 transcripts were down-regulated in captive mussels, and 41 were assigned functional annotations. We observed an over-representation of down-regulated transcripts associated with immune response. Our work suggests that A. plicata experienced moderate levels of stress and altered energy metabolism and immune response for at least 11 months post translocation into captivity.
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Affiliation(s)
- Ieva Roznere
- grid.261331.40000 0001 2285 7943Department of Evolution, Ecology, and Organismal Biology, The Ohio State University, Columbus, OH 43210 USA
| | - Brandon T. Sinn
- grid.261485.c0000 0001 2235 8896Department of Biology and Earth Science, Otterbein University, Westerville, OH 43081 USA
| | - Marymegan Daly
- grid.261331.40000 0001 2285 7943Department of Evolution, Ecology, and Organismal Biology, The Ohio State University, Columbus, OH 43210 USA
| | - G. Thomas Watters
- grid.261331.40000 0001 2285 7943Department of Evolution, Ecology, and Organismal Biology, The Ohio State University, Columbus, OH 43210 USA
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Waller DL, Bartsch MR, Lord EG, Erickson RA. Temperature-Related Responses of an Invasive Mussel and 2 Unionid Mussels to Elevated Carbon Dioxide. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2020; 39:1546-1557. [PMID: 32367522 PMCID: PMC7496913 DOI: 10.1002/etc.4743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 03/03/2020] [Accepted: 04/30/2020] [Indexed: 06/11/2023]
Abstract
Zebra mussels (Dreissena polymorpha) have exacerbated the decline of native freshwater mussels (order Unionida) in North America since their arrival in the 1980s. Options for controlling invasive mussels, particularly in unionid mussel habitats, are limited. Previously, carbon dioxide (CO2 ) showed selective toxicity for zebra mussels, relative to unionids, when applied in cool water (12 °C). We first determined 96-h lethal concentrations of CO2 at 5 and 20 °C to zebra mussels and responses of juvenile plain pocketbook (Lampsilis cardium). Next, we compared the time to lethality for zebra mussels at 5, 12, and 20 °C during exposure to partial pressure of CO2 (PCO2 ) values of 110 to 120 atm (1 atm = 101.325 kPa) and responses of juvenile plain pocketbook and fragile papershell (Leptodea fragilis). We found efficacious CO2 treatment regimens at each temperature that were minimally lethal to unionids. At 5 °C, plain pocketbook survived 96-h exposure to the highest PCO2 treatment (139 atm). At 20 °C, the 96-h lethal concentration to 10% of animals (LC10) for plain pocketbook (173 atm PCO2 , 95% CI 147-198 atm) was higher than the LC99 for zebra mussels (118 atm PCO2 , 95% CI 109-127 atm). Lethal time to 99% mortality (LT99) of zebra mussels in 110 to 120 atm PCO2 ranged from 100 h at 20 °C to 300 h at 5 °C. Mean survival of both plain pocketbook and fragile papershell juveniles exceeded 85% in LT99 CO2 treatments at all temperatures. Short-term infusion of 100 to 200 atm PCO2 at a range of water temperatures could reduce biofouling by zebra mussels with limited adverse effects on unionid mussels. Environ Toxicol Chem 2020;39:1546-1557. Published 2020. This article is a U.S. Government work and is in the public domain in the USA. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
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Affiliation(s)
- Diane L. Waller
- US Geological SurveyUpper Midwest Environmental Sciences CenterLa CrosseWisconsin
| | - Michelle R. Bartsch
- US Geological SurveyUpper Midwest Environmental Sciences CenterLa CrosseWisconsin
| | - Eric G. Lord
- US Geological SurveyUpper Midwest Environmental Sciences CenterLa CrosseWisconsin
| | - Richard A. Erickson
- US Geological SurveyUpper Midwest Environmental Sciences CenterLa CrosseWisconsin
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Affiliation(s)
- Diane L. Waller
- U.S. Geological Survey, Upper Midwest Environmental Sciences Center, La Crosse, WI 54603 USA
| | - W. Gregory Cope
- Department of Applied Ecology, North Carolina State University, Raleigh NC 27695-7617 USA
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Jeffrey JD, Hannan KD, Hasler CT, Suski CD. Hot and bothered: effects of elevated Pco2 and temperature on juvenile freshwater mussels. Am J Physiol Regul Integr Comp Physiol 2018; 315:R115-R127. [DOI: 10.1152/ajpregu.00238.2017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Multiple environmental stressors may interact in complex ways to exceed or diminish the impacts of individual stressors. In the present study, the interactive effects of two ecologically relevant stressors [increased temperature and partial pressure of carbon dioxide (Pco2)] were assessed for freshwater mussels, a group of organisms that are among the most sensitive and rapidly declining worldwide. The individual and combined effects of elevated temperature (22°C–34°C) and Pco2 (~230, 58,000 µatm) on juvenile Lampsilis siliquoidea were quantified over a 5- or 14-day period, during which physiological and whole animal responses were measured. Exposure to elevated temperature induced a series of physiological responses, including an increase in oxygen consumption rates following 5 days of exposure at 31°C and an increase in carbonic anhydrase ( ca) and heat shock protein 70 mRNA levels following 14 days of exposure at 28°C and 34°C, respectively. Treatment with elevated Pco2 activated acid-base regulatory responses including increases in CA and Na+-K+-ATPase activity and a novel mechanism for acid-base regulation during Pco2 exposure in freshwater mussels was proposed. Thermal and CO2 stressors also interacted such that responses to the thermal stressor were diminished in mussels exposed to elevated Pco2, resulting in the greatest level of mortality. Additionally, larger mussels were more likely to survive treatment with elevated Pco2 and/or temperature. Together, exposure to elevated Pco2 may compromise the ability of juvenile freshwater mussels to respond to additional stressors, such as increased temperatures, highlighting the importance of considering not only the individual but also the interactive effects of multiple environmental stressors.
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Affiliation(s)
- Jennifer D. Jeffrey
- Department of Natural Resources and Environmental Science, University of Illinois at Urbana–Champaign, Urbana, Illinois
| | - Kelly D. Hannan
- Department of Natural Resources and Environmental Science, University of Illinois at Urbana–Champaign, Urbana, Illinois
| | - Caleb T. Hasler
- Department of Natural Resources and Environmental Science, University of Illinois at Urbana–Champaign, Urbana, Illinois
| | - Cory D. Suski
- Department of Natural Resources and Environmental Science, University of Illinois at Urbana–Champaign, Urbana, Illinois
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Hasler CT, Hannan KD, Jeffrey JD, Suski CD. Valve movement of three species of North American freshwater mussels exposed to elevated carbon dioxide. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:15567-15575. [PMID: 28516355 DOI: 10.1007/s11356-017-9160-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 05/01/2017] [Indexed: 06/07/2023]
Abstract
Freshwater mussels are at-risk taxa and may be exposed to high levels of carbon dioxide (CO2) because of the potential use of CO2 to control the movement of invasive aquatic fish species. One potential behavioral response to a change in the partial pressure of CO2 (pCO2) may be altered valve movement. In this study, three species of mussels were fitted with modified sensors and exposed to two regimes of pCO2 to define thresholds of impaired valve movement. The first experiment demonstrated that Pyganodon grandis were much more tolerant to rising pCO2 relative to Lampsilis siliquoidea (acute closure at ∼200,000 μatm in comparison to ∼80,000 μatm). The second experiment consisted of monitoring mussels for 6 days and exposing them to elevated pCO2 (∼70,000 μatm) over a 2-day period. During exposure to high pCO2, Lampsilis cardium were open for nearly the entire high pCO2 period. Conversely, P. grandis were closed for most of the period following exposure to high pCO2. For L. siliquoidea, the number of closures decreased nearly 40-fold during high pCO2. The valve movement responses observed suggest species differences, and exposure to elevated pCO2 requires a reactive response.
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Affiliation(s)
- Caleb T Hasler
- Department of Natural Resources and Environmental Science, University of Illinois at Urbana-Champaign, 1102 South Goodwin Avenue, Urbana, IL, 61801, USA.
| | - Kelly D Hannan
- Department of Natural Resources and Environmental Science, University of Illinois at Urbana-Champaign, 1102 South Goodwin Avenue, Urbana, IL, 61801, USA
| | - Jennifer D Jeffrey
- Department of Natural Resources and Environmental Science, University of Illinois at Urbana-Champaign, 1102 South Goodwin Avenue, Urbana, IL, 61801, USA
| | - Cory D Suski
- Department of Natural Resources and Environmental Science, University of Illinois at Urbana-Champaign, 1102 South Goodwin Avenue, Urbana, IL, 61801, USA
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