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Yuan Z, Lei Y, Wan B, Yang M, Jiang Y, Tian C, Wang Z, Wang W. Cadmium exposure elicited dynamic RNA m 6A modification and epi-transcriptomic regulation in the Pacific whiteleg shrimp Litopenaeus vannamei. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. PART D, GENOMICS & PROTEOMICS 2024; 52:101307. [PMID: 39126882 DOI: 10.1016/j.cbd.2024.101307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 08/05/2024] [Accepted: 08/05/2024] [Indexed: 08/12/2024]
Abstract
N6-methyladenosine (m6A) methylation is the most prevalent post-transcriptional RNA modification in eukaryotic organisms, but its roles in the regulation of physiological resistance of marine crustaceans to heavy metal pollutants are poorly understood. In this study, the transcriptome-wide m6A RNA methylation profiles and dynamic m6A changes induced by acute Cd2+ exposure in the the pacific whiteleg shrimp Litopenaeus vannamei were comprehensively analyzed. Cd2+ toxicity caused a significant reduction in global RNA m6A methylation level, with major m6A regulators including the m6A methyltransferase METTL3 and the m6A binding protein YTHDF2 showing declined expression. Totally, 11,467 m6A methylation peaks from 6415 genes and 17,291 peaks within 7855 genes were identified from the Cd2+ exposure group and the control group, respectively. These m6A peaks were predominantly enriched in the 3' untranslated region (UTR) and around the start codon region of the transcripts. 7132 differentially expressed genes (DEGs) and 7382 differentially m6A-methylated genes (DMGs) were identified. 3186 genes showed significant changes in both gene expression and m6A methylation levels upon cadmium exposure, and they were related to a variety of biological processes and gene pathways. Notably, an array of genes associated with antioxidation homeostasis, transmembrane transporter activity and intracellular detoxification processes were significantly enriched, demonstrating that m6A modification may mediate the physiological responses of shrimp to cadmium toxicity via regulating ROS balance, Cd2+ transport and toxicity mitigation. The study would contribute to a deeper understanding of the evolutionary and functional significance of m6A methylation to the physiological resilience of decapod crustaceans to heavy metal toxicants.
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Affiliation(s)
- Zhixiang Yuan
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Yiguo Lei
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Boquan Wan
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Miao Yang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Yue Jiang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Changxu Tian
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Zhongduo Wang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang 524088, China
| | - Wei Wang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang 524088, China.
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da Costa JR, Capparelli MV, Padilha PM, Borges E, Ramaglia AC, Dos Santos MR, Augusto A. Chronic Cadmium Exposure can Alter Energy Allocation to Physiological Functions in the Shrimp Penaeus vannamei. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2024; 87:58-68. [PMID: 38922419 DOI: 10.1007/s00244-024-01074-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 06/07/2024] [Indexed: 06/27/2024]
Abstract
Environmental stressors in aquatic organisms can be assessed using a bioenergetic approach based on the evaluation of changes in their physiological parameters. We evaluated the chronic effects of cadmium (Cd2+) on the energy balance as well as the survival, growth, metabolism, nitrogen excretion, hepatosomatic index, oxidized energy substrate, and osmoregulation of the shrimp Penaeus vannamei with the hypothesis that the high energy demand related to the homeostatic regulation of Cd2+could disrupt the energy balance and as a consequence, their physiological functions. The shrimp exposed to Cd2+ had higher mortality (30%), directed more energy into growth (33% of energy intake), ingested 10% more energy, and defecated less than control animals. Cd2+ exposure caused a tendency to decrease metabolism and ammonia excretion but did not alter the hepatosomatic index, type of energy substrate oxidized, and the hyperosmorregulatory pattern of the species. The Cd+2 exposure may have induced a trade-off response because there was a growth rate increase accompanied by increased mortality.
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Affiliation(s)
- Juliana Rodrigues da Costa
- Aquaculture Center of UNESP (CAUNESP), São Paulo State University (UNESP), Jaboticabal, SP, 14884-900, Brazil
| | - Mariana V Capparelli
- Estación El Carmen, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de Mexico, Carretera Carmen-Puerto Real Km 9.5, 24157, Ciudad del Carmen, Campeche, Mexico
| | - Pedro Magalhães Padilha
- Department of Chemistry and Biochemistry, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, SP, 14884-900, Brazil
| | - Emanuelle Borges
- Aquaculture Center of UNESP (CAUNESP), São Paulo State University (UNESP), Jaboticabal, SP, 14884-900, Brazil
| | - Andressa C Ramaglia
- Aquaculture Center of UNESP (CAUNESP), São Paulo State University (UNESP), Jaboticabal, SP, 14884-900, Brazil
| | - Michelle Roberta Dos Santos
- Aquaculture Center of UNESP (CAUNESP), São Paulo State University (UNESP), Jaboticabal, SP, 14884-900, Brazil
| | - Alessandra Augusto
- Aquaculture Center of UNESP (CAUNESP), São Paulo State University (UNESP), Jaboticabal, SP, 14884-900, Brazil.
- Department of Chemistry and Biochemistry, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, SP, 14884-900, Brazil.
- Department of Zoology, São Paulo State University (UNESP), Botucatu, SP, 18618-689, Brazil.
- Laboratory of Sustainable Aquaculture, São Paulo State University (UNESP), São Vicente, SP, 11380-972, Brazil.
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Gao M, Deng H, Dong Y, Qiu W, Song Z. Effects of sertraline hydrochloride with As(III) or Cd on rhizosphere micro-environment and root endophytes in rice. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 352:124149. [PMID: 38735458 DOI: 10.1016/j.envpol.2024.124149] [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: 02/27/2024] [Revised: 05/01/2024] [Accepted: 05/10/2024] [Indexed: 05/14/2024]
Abstract
This study investigated the effects of the antidepressant sertraline hydrochloride (Ser-HCI) on rice physiology when combined with arsenic (III) or cadmium. Hydroponic experiments revealed that combined lower concentrations (0.2 and 0.6 mg L-1) of Ser-HCl and As (III) or Cd increased rice biomass and reduced pH and low molecular weight organic acids. The fluorescence intensity was enhanced with Ser-HCl and As-only treatments, with a significant difference (p < 0.05) in the dissolved organic matter index. There was a decrease in endophyte-specific operational taxonomic units, with proteobacteria dominating the rice root endophytes. The addition of Ser-HCl resulted in the Verrucomicrobiota increasing by 6.4 times, which was positively correlated with malic acid and negatively correlated with pH. Functional annotation highlighted alterations in carbohydrate metabolism pathways. This study provides insights into the interactive effects of Ser-HCl on rice when combined with As (III) or Cd, addressing gaps in our understanding of the impact of antidepressants on plant systems.
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Affiliation(s)
- Minling Gao
- Department of Materials and Environmental Engineering, Shantou University, Shantou, 515063, China
| | - Huizhen Deng
- Department of Materials and Environmental Engineering, Shantou University, Shantou, 515063, China
| | - Youming Dong
- Department of Materials and Environmental Engineering, Shantou University, Shantou, 515063, China
| | - Weiwen Qiu
- The New Zealand Institute for Plant and Food Research Limited, Private Bag 3230, Hamilton 3240, New Zealand
| | - Zhengguo Song
- Department of Materials and Environmental Engineering, Shantou University, Shantou, 515063, China.
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Eagon L, Zou E. Zinc is incorporated into the exoskeleton during post-ecdysial mineralization and inhibits exoskeletal calcification in the blue crab, Callinectes sapidus. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 261:106642. [PMID: 37527597 DOI: 10.1016/j.aquatox.2023.106642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 07/26/2023] [Accepted: 07/27/2023] [Indexed: 08/03/2023]
Abstract
Zinc is an essential but toxic metal with both natural and anthropogenic sources. Zinc has been reported to be present in crustacean exoskeleton, but it has remained unknown as to when zinc is incorporated into the shell during the molting cycle and the effects zinc has on exoskeleton properties. This study was conducted to identify a period during the molting cycle, in which zinc is incorporated into the exoskeleton of the blue crab, Callinectes sapidus, and to identify deleterious effects of zinc incorporation on the exoskeleton. It was hypothesized that zinc would be incorporated into the shell during the mineralization phase using calcium transporters, which would inhibit exoskeletal calcification. Post-ecdysial blue crabs were given two injections of zinc in the form of zinc chloride dissolved in Pantin's crustacean saline at the arthrodial membrane at three treatment levels: 0.0, 1.0 and 5.0 µg Zn/g wet weight. Exoskeletal and hemolymph samples were then analyzed for zinc, calcium, and magnesium content. Gill, muscle, and hepatopancreas samples were analyzed for zinc only. Epidermis samples were analyzed for carbonic anhydrase activity. The results showed that the injection dose of 1.0 µg Zn/g wet weight resulted in significant accumulation of zinc in the exoskeleton. There was no significant accumulation of exoskeletal zinc following 5.0 µg Zn/g wet weight injections. A significant reduction in exoskeletal calcium content in crabs treated with 1.0 or 5.0 µg Zn/g wet weight was also observed. The hypothetical model explaining zinc's incorporation into the exoskeleton and inhibition of exoskeletal calcification is proposed. Additionally, for the soft tissues examined, significant zinc accumulation was only observed in the hepatopancreas following zinc treatment. Our data points to the existence of crustacean zinc transporter. This study is the first to present evidence that zinc is deposited to the exoskeleton during post-ecdysial mineralization and inhibits exoskeletal calcification in a crustacean.
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Affiliation(s)
- Lauren Eagon
- Department of Biological Sciences, Nicholls State University, Thibodaux, LA, 70310, USA
| | - Enmin Zou
- Department of Biological Sciences, Nicholls State University, Thibodaux, LA, 70310, USA.
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Sang ZW, Bao MN, Liang Y, Chu KH, Wang L. Identification of acid phosphatase (ShACP) from the freshwater crab Sinopotamon henanense and its expression pattern changes in response to cadmium. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 255:114762. [PMID: 36931085 DOI: 10.1016/j.ecoenv.2023.114762] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 03/06/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
Acid phosphatase(ACP) is an important immune enzyme in crustacean humoral immunity. At present, the research on ACP mainly focuses on the biochemical properties of the enzyme, while few studies on gene expression. In this study, ShACP was cloned and the effect of cadmium stress on the expression and function of ShACP in the freshwater crab Sinopotamon henanense was studied. Analysis of the ShACP sequence and tissue distribution results showed that the cDNA sequence of ShACP was 1629 bp, including 48 bp 5' untranslated region, 1209 bp open reading frame region, and 372 bp 3' untranslated region, encoding 402 amino acids. ShACP contained multiple phosphorylation sites and mainly played a role in the hemolymph. Under low-concentration cadmium stress, the body improved immunity by enhancing the expression of ShACP, while high-concentration cadmium stress inhibited the expression of ShACP. ShACP can promote the phagocytosis of hemocytes, while cadmium stress reduced the phagocytosis of hemocytes. This study provides a theoretical basis for further research on the immune system of crabs and is of great significance for the study of crustacean immune responses under heavy metal stress.
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Affiliation(s)
- Zhi-Wen Sang
- School of Life Science, Shanxi University, Taiyuan 030006, China
| | - Min-Nan Bao
- School of Life Science, Shanxi University, Taiyuan 030006, China
| | - Yue Liang
- School of Life Science, Shanxi University, Taiyuan 030006, China
| | - Ka-Hou Chu
- School of Life Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Lan Wang
- School of Life Science, Shanxi University, Taiyuan 030006, China.
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Liang Y, Bao M, Lang L, Wang L, Wang S, Chen CM, Chu KH, Wang L. Cloning, identification, and functional characterization of novel prophenoloxidases (ShproPO) from the freshwater crab Sinopotamon henanense in response to cadmium exposure and Aeromonas hydrophila infection. FISH & SHELLFISH IMMUNOLOGY 2023; 134:108565. [PMID: 36702328 DOI: 10.1016/j.fsi.2023.108565] [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: 11/23/2022] [Revised: 01/15/2023] [Accepted: 01/22/2023] [Indexed: 06/18/2023]
Abstract
Prophenoloxidase (proPO) is essential in the prophenoloxidase-activating system (proPO-AS) which is important for defense against foreign infection in crustaceans. However, most studies have focused on expression in the presence of a single pathogenic bacterium, and very few have addressed the presence of environmental contaminants simultaneously, such as cadmium (Cd) and Aeromonas hydrophila. Our study aimed to investigate the function of proPO in the freshwater crab Sinopotamon henanense and the changes in its expression by Cd and infection of A. hydrophila. A novel proPO from the hemocytes of S. henanense (ShproPO) was found in this research, the full-length cDNA of ShproPO was 2620 bp of encoding a protein of 678 amino acids containing three typical hemocyanin domains. The ShproPO protein could be found in both the granular (GHc) and the semi-granular hemocytes (SGHc). The ShproPO mRNA was found to be abundantly expressed in hemocytes and could be influenced by A. hydrophila infection. These results indicate that ShproPO could be involved in the antibacterial process. Further research found that low concentrations of Cd could promote its expression after infection with A. hydrophila. Therefore, it was hypothesized that Cd disrupted the response of crabs to A. hydrophila infection. Subsequently, PO enzyme activity was found to be significantly reduced through in vivo RNA interference with ShproPO, and the results suggested that ShproPO is likely to be a key enzyme in the melanization response. Finally, ShproPO was found to significantly enhance the phagocytosis of A. hydrophila-infected hemocytes by in vitro recombination, confirming that ShproPO is involved in hemocyte-mediated melanization and phagocytosis. Our findings reveal completely new insight into the immunotoxicity of Cd and the immune function of ShproPO in S. henanense.
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Affiliation(s)
- Yue Liang
- School of Life Science, Shanxi University, Taiyuan, Shanxi Province, China
| | - Minnan Bao
- School of Life Science, Shanxi University, Taiyuan, Shanxi Province, China
| | - Lang Lang
- Shenzhen Technology University, Shenzhen, Guangdong Province, China
| | - Lu Wang
- School of Life Science, Shanxi University, Taiyuan, Shanxi Province, China
| | - Shijie Wang
- School of Life Science, Shanxi University, Taiyuan, Shanxi Province, China
| | - Chien M Chen
- Department of Environmental Resources Management, Chia Nan University of Pharmacy & Science, Tainan City, Taiwan, ROC
| | - Ka-Hou Chu
- School of Life Science, Chinese University of Hong Kong, Hong Kong, China
| | - Lan Wang
- School of Life Science, Shanxi University, Taiyuan, Shanxi Province, China.
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Soorya Y, Zou E. How Does Carbon Dioxide-Induced Acidification Affect Postecdysial Exoskeletal Mineralization in the Blue Crab (Callinectes sapidus)? ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2022; 41:2950-2954. [PMID: 36039966 DOI: 10.1002/etc.5474] [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: 07/07/2022] [Revised: 08/16/2022] [Accepted: 08/25/2022] [Indexed: 06/15/2023]
Abstract
Carbon dioxide (CO2 ) enrichment in seawater because of increased use of fossil fuels can possibly cause detrimental effects on the physiological processes of marine life, especially shell builders, due to CO2 -induced ocean acidification. We investigated, for the first time, specifically the effect of CO2 enrichment on postecdysial shell mineralization in Crustacea using the blue crab, Callinectes sapidus, as the model crustacean. It was hypothesized that CO2 enrichment of seawater would adversely affect exoskeletal mineralization in the blue crab. We used two groups of postecdysial crabs, with one group exposed to seawater at a pH of 8.20 and the other group treated with CO2 -acidified seawater with a pH of 7.80-7.90. After a period of 7 days, samples of exoskeleton and hemolymph were collected from the survivors. Enrichment was found to significantly increase exoskeletal magnesium content by 104% relative to control, whereas a statistically nonsignificant elevation of 31% in exoskeletal calcium was registered. Because CO2 treatment did not change the content of magnesium and calcium in the hemolymph, we postulate that increased exoskeletal mineralization in postecdysial blue crabs must stem from an increased influx of bicarbonate ions from the medium through the gill, to the hemolymph, and across the epidermis. In addition, the observed significant increase in the mass of exoskeleton following CO2 treatment must be at least partly accounted for by enhanced postmolt carbonate salt deposition to the shell. Environ Toxicol Chem 2022;41:2950-2954. © 2022 SETAC.
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Affiliation(s)
- Yusra Soorya
- Department of Chemistry and Physical Sciences, Nicholls State University, Thibodaux, Louisiana, USA
| | - Enmin Zou
- Department of Biological Sciences, Nicholls State University, Thibodaux, Louisiana, USA
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Metallic Study of the Invasive Species Cronius ruber—Assessment of Toxic Risk. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12073217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Three toxic heavy metals (Cd, Pb, and Hg) were analyzed in the newly found invasive species in the Canary Islands, Cronius ruber. Its high growth rate and its widely varied diet are affecting the Canary marine ecosystem. The study was conducted using electrothermal vaporization atomic absorption spectrometry (GF-AAS) and cold-vapor atomic absorption spectrophotometry (CV-AAS). Significant differences were found in terms of the location and sex of the specimens, with the highest concentrations being found in areas with higher tourism activity and in the female specimens. On the other hand, the conclusion of the study is that human consumption of this species does not pose any toxic risk to public health, as the levels obtained in muscle tissue do not exceed the established limits for these metals. Therefore, its consumption and the fishing of this species can stop the proliferation of the same in the Canary coasts and thus not be harmful for the ecosystem.
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Osayande O, Zou E. Lead Inhibits Postecdysial Exoskeletal Calcification in the Blue Crab (Callinectes sapidus). ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2022; 41:474-482. [PMID: 34913519 DOI: 10.1002/etc.5273] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/07/2021] [Accepted: 12/11/2021] [Indexed: 06/14/2023]
Abstract
Postecdysial mineralization in crustaceans involves the deposition of carbonate salts, such as calcium carbonate, to the organic matrix. Because of the resemblance between Pb2+ and Ca2+ , the present study was carried out to investigate whether Pb is incorporated into the new shell during postecdysial mineralization using the blue crab (Callinectes sapidus) as the model crustacean. It was hypothesized that injected Pb would be deposited in the shell via calcium transporters in the epidermis during the mineralization process. Postecdysial blue crabs were injected with two doses of 5 µg Pb/g wet weight each in lead acetate, and then Pb, Ca, and Mg contents were analyzed in the exoskeleton, while only Pb bioaccumulation was quantified for the hepatopancreas, gills, muscles, and hemolymph. The results showed a statistically nonsignificant increase in exoskeletal Pb content in Pb-treated crabs compared to control, suggesting that exoskeletal Pb may not be a sensitive proxy for aquatic Pb pollution. There was a significant decrease in Ca content in Pb-treated crabs, suggesting that Pb hindered the deposition of Ca to crab exoskeleton, thereby obstructing calcification. A trend of a decrease in exoskeletal Mg was also observed in Pb-treated crabs. There was a significant increase in Pb content found in the gills, hepatopancreas, muscle, and hemolymph in Pb-treated crabs. The rank of the Pb level among three soft tissues in a decreasing order is hepatopancreas > gill > muscle. This is the first study to present evidence that Pb disrupts postecdysial exoskeletal calcification in a crustacean. Environ Toxicol Chem 2022;41:474-482. © 2021 SETAC.
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Affiliation(s)
- Osaze Osayande
- Department of Biological Sciences, Nicholls State University, Thibodaux, Louisiana, USA
| | - Enmin Zou
- Department of Biological Sciences, Nicholls State University, Thibodaux, Louisiana, USA
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