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Bownik A, Adamczuk M, Skowrońska BP. Effects of cyanobacterial metabolites: Aeruginosin 98A, microginin-FR1, anabaenopeptin-A, cylindrospermopsin in binary and quadruple mixtures on the survival and oxidative stress biomarkers of Daphnia magna. Toxicon 2023; 229:107137. [PMID: 37121403 DOI: 10.1016/j.toxicon.2023.107137] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/04/2023] [Accepted: 04/26/2023] [Indexed: 05/02/2023]
Abstract
The aim of our study was to determine the effects of aeruginosin 98 A (ARE-A), microginin-FR1 (MG-FR1), anabaenopeptin-A (ANA-A) cylindrospermopsin (CYL) and their binary and quadruple mixtures on the survival and the levels of oxidative stress biomarkers in Daphnia magna: total glutathione (GSH), catalase (CAT), dismutase (SOD) and malondialdehyde (MDA). The biochemical indicators were measured with ELISA kits and the interactive effects were determined by isobole and polygonal analysis with Compusyn® computer software. The study revealed that oligopeptides did not decrease daphnid survival, only CYL inhibited this parameter, with synergistic effects when it was used as a component. The single metabolites at the two highest concentrations and all the binary and quadruple mixtures at all concentrations diminished GSH level, however both in the binary and in the quadruple mixtures most of the interactions between the metabolites were antagonistic. Nearly additive effects were found only in AER-A + CYL and MG-FR1+CYL. On the other hand, CAT activity was slightly increased in daphnids exposed to the binary mixtures with antagonistic interactions, however nearly addivive effects were found in animals exposed to the mixture of AER-A + ANA-A and synergistic in the quadruple mixture. SOD was elevated in daphnids exposed to single AER-A and MG-FR1, however it was diminished in the animals exposed to ANA-A and CYL. Binary mixtures in which CYL was present as a component decreased the level of this enzyme with nearly additive interactions in ANA-A + CYL. The quadruple mixture increased SOD level, with antagonistic interactions. Both single cyanobacterial metabolites, their binary and quadruple mixtures induced lipid peroxidation measured by MDA level and most of interactions in the binary mixtures were synergistic. The study suggested that antioxidative system of Daphnia magna responded to the tested metabolites and the real exposure to mixtures of these products may lead to various interactive effects with varied total toxicity.
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Affiliation(s)
- Adam Bownik
- Department of Hydrobiology and Protection of Ecosystems, University of Life Sciences in Lublin, Dobrzańskiego 37, 20-262, Lublin, Poland.
| | - Małgorzata Adamczuk
- Department of Hydrobiology and Protection of Ecosystems, University of Life Sciences in Lublin, Dobrzańskiego 37, 20-262, Lublin, Poland
| | - Barbara Pawlik Skowrońska
- Department of Hydrobiology and Protection of Ecosystems, University of Life Sciences in Lublin, Dobrzańskiego 37, 20-262, Lublin, Poland
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Goldoni A, Pacheco MR, da Silva LB. Comet assay in Aegla platensis (Decapoda: Anomura) using a non-lethal hemolymph field sampling for in situ monitoring of freshwater genotoxicity. ECOTOXICOLOGY (LONDON, ENGLAND) 2023; 32:160-165. [PMID: 36680665 DOI: 10.1007/s10646-023-02627-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/11/2023] [Indexed: 06/17/2023]
Abstract
This study aimed to apply the comet assay on Aegla platensis crabs as a suitable non-destructive approach for in situ monitoring of freshwater genotoxicity. Animals were captured during four sampling periods in a stream under minor anthropogenic impacts in Southern Brazil. Crabs were captured with a hand net, then the hemolymph samples were collected, and the animals were released into the stream after a 20-min recovery time. Hemolymph samples were transported to the laboratory and used to perform the alkaline comet assay. Results showed an intermediate level in the DNA damage index (range 107.3-165.0 arbitrary unit). No significant differences were observed among the different sampling periods. Hemolymph was successfully used as a non-lethal source of biological samples, and the comet assay using A. platensis proved to be a feasible approach for genotoxicity studies.
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Affiliation(s)
- Angélica Goldoni
- Feevale University, ERS-239, 2755, Novo Hamburgo, Rio Grande do Sul, Brazil
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Zheng N, Wang N, Wang ZY, Abdallah G, Zhang BY, Wang S, Yao Q, Chen YK, Wang QJ, Zhang DM. Effect of infection with Aeromonas hydrophila on antioxidant capacity, inflammation response, and apoptosis proteins in Chinese mitten crab (Eriocheir sinensis). Comp Biochem Physiol C Toxicol Pharmacol 2022; 252:109220. [PMID: 34718187 DOI: 10.1016/j.cbpc.2021.109220] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 09/25/2021] [Accepted: 10/20/2021] [Indexed: 11/03/2022]
Abstract
Aeromonas hydrophila (A. hydrophila) as a serious bacterial disease endangering aquaculture and the Chinese mitten crabs (Eriocheir sinensis) industry. The present study was conducted to investigate the effects of A. hydrophila on the antioxidant, inflammation, immunity and apoptosis of the E. sinensis. The E. sinensis (female: 150 crabs and male: 150 crabs; 67.11 ± 0.76 g) were randomly divided into the control group (Foot injection with 200 μl PBS) and infection group (Foot injection with 200 μl A. hydrophila of 106 cfu/mL). The hepatopancreas and serum was collected to detect the related indicators after injection 24 h. The results showed that A. hydrophila significantly reduced the malondialdehyde (MDA) level and gamma-glutamyl-cysteine synthetase (γ-GCS) activity in the hepatopancreas of male and female crabs (P < 0.05). A.hydrophila also significantly decreased the total-superoxide dismutase (T-SOD) activity while the levels of total antioxidant capacity (T-AOC) and total glutathione (T-GSH) were significantly increased in the hepatopancreas and serum of male crabs (P < 0.05). At the transcriptional level, the expression of catalase (CAT) and glutathione peroxidases (GPx), Glutathione S-transferase (GST) in the hepatopancreas of male and female crabs was significantly reduced compared to the control group (P < 0.05). However, A. hydrophila could not significantly change the Kelch-like ECH-associated protein 1 (Keap1) gene expression level in both of male and female carbs. A. hydrophila injection for 24 h, the lysozyme (LZM) and phenoloxidase (PO) activity was significantly increased in the hepatopancreas and serum of the male and female crabs (P < 0.05). Simultaneous increase of immune-related enzyme activity (acid phosphatase and alkaline phosphatase) was found in the serum of male and female crabs (P < 0.05). However, the acid phosphatase (ACP) and alkaline phosphatase (ALP) activity was significantly decreased in the hepatopancreas of male and female crabs (P < 0.05). Meanwhile, the LZM mRNA level was significantly decreased in the hepatopancreas of E. sinensis (P < 0.05). Furthermore, A. hydrophila significantly inhibited the mRNA expression of immune regulated factors (Interleukin enhancer binding factor 2: ILF2, interleukin-16: IL-16, Toll-like receptor: TLR) in the male and female crabs. The levels of inflammatory cytokines (interleukin-1β: IL-1β, interleukin-6: IL-6, interleukin-8: IL-8, interleukin-10: IL-10) were significantly increased in the hepatopancreas of male and female crabs. Moreover, A.hydrophila increased the mRNA expression of apoptosis - related genes in male crabs (p38 mitogen-activated protein kinase: p38, adamalysin 17: ADAM17, Cysteine-aspartic acid protease 3: Caspase 3, and Bcl-2-associated X: BAX), but reduced the expression of p38, ADAM17, Caspase 3 and BAX genes in female crabs. In conclusion, A. hydrophila could induce oxidative stress and the response of inflammation and immunity, and also trigger the mRNA expression changes of apoptosis related-genes in E. sinensis. This study provides a theoretical basis for the study of E. sinensis diseases.
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Affiliation(s)
- Nan Zheng
- College of Animal Science and Technology, Jilin Agricultural University, Jilin, Changchun 130118, China
| | - Ning Wang
- College of Animal Science and Technology, Jilin Agricultural University, Jilin, Changchun 130118, China
| | - Zhuo-Yu Wang
- College of Animal Science and Technology, Jilin Agricultural University, Jilin, Changchun 130118, China
| | - Ghonimy Abdallah
- Key Laboratory of Sustainable Development of Marine Fisheries, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China; Fish Farming and Technology Institute, Suez Canal University, Ismailia 41522, Egypt
| | - Bao-Yuan Zhang
- College of Animal Science and Technology, Jilin Agricultural University, Jilin, Changchun 130118, China
| | - Sen Wang
- College of Animal Science and Technology, Jilin Agricultural University, Jilin, Changchun 130118, China
| | - Qi Yao
- College of Animal Science and Technology, Jilin Agricultural University, Jilin, Changchun 130118, China
| | - Yu-Ke Chen
- College of Animal Science and Technology, Jilin Agricultural University, Jilin, Changchun 130118, China
| | - Qiu-Ju Wang
- College of Animal Science and Technology, Jilin Agricultural University, Jilin, Changchun 130118, China.
| | - Dong-Ming Zhang
- College of Animal Science and Technology, Jilin Agricultural University, Jilin, Changchun 130118, China; Tonghua Normal University, Jilin, Tonghua 134000, China.
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Younas A, Xiukang W, Yousaf Z, Fiaz S, Riaz A, Hussain S, Huang S. Physiological and biochemical changes induced by Qiangdi nano-863 biological assistant growth apparatus during rice seed priming under temperature stress. BRAZ J BIOL 2021; 83:e245206. [PMID: 34550280 DOI: 10.1590/1519-6984.245206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 04/29/2021] [Indexed: 11/21/2022] Open
Abstract
A huge amount of rice cultivation and consumption occur in Asia particularly in Pakistan and China. However, multiple abiotic stresses especially high and low-temperature proved to be a substantial threat for rice production ultimately risks for food security. To overcome various types of abiotic stress; seed priming is among the effective approaches to improve the rice seed germination and growth vigor. Therefore, the present study was planned to evaluate physiological and biochemical modifications in Chinese and Pakistani rice varieties by Qiangdi 863 biological assistant growth apparatus nano treated water (NTW), Osmopriming Calcium chloride (CaCl2), redox priming hydrogen peroxide (H2O2) and hormonal priming by Salicylic acid (SA) under temperature stress conditions. The experiment was performed with completely randomize design conditions. Five rice varieties, nomenclature as Zhongzoa 39, (Chinese rice variety) KSK 133, KS 282, Super basmati and PK 1121 aromatic (Pakistani rice variety) were sown under low temperature (LT) (17ºC), optimal temperature (OT) 27ºC and high temperature (HT) 37ºC conditions. The present study indicated that nanopriming were the most effective treatments increased Germination Energy Percentage (GEP) (96.1, 100, 100%), Speed of Germination (SG) (27.2, 35.45, 37.1), Final Germination Percentage (FGP) (98.2, 99.1, 99.4%), Seedling Dry Weight Biomass (DWB) (0.1, 0.137, 0.14g), Total Chlorophyll Content (0.502, 13.74, 15.21), antioxidant enzymes Superoxide Dismutase (SOD)(3145, 2559, 3345 µg-1FWh-1), Catalase (CAT) (300, 366, 3243 µg-1FWh-1) and decreased Malondialdehyde (MDA) (6.5, 12.2, 6.5 µmol g-1 FW) for Zhongzao 39 and KSK 133 rice varieties under low (LT+NTW), optimal temperature (OP+NTW) and high temperature (HT+NTW) stress., Therefore, nano-priming is recommended to cope with the high and low-temperature stress conditions along with improved productivity of rice.
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Affiliation(s)
- A Younas
- Lahore College for Women University, Department of Botany, Lahore, Pakistan.,China National Rice Research Institute, State Key Laboratory of Rice Biology, Hangzhou, China
| | - W Xiukang
- College of Life Sciences, Yan'an University, Yan'an 716000, Shaanxi, China
| | - Z Yousaf
- Lahore College for Women University, Department of Botany, Lahore, Pakistan
| | - S Fiaz
- The University of Haripur, Department of Plant Breeding and Genetics, Khyber Pakhtunkhwa, Pakistan
| | - A Riaz
- China National Rice Research Institute, State Key Laboratory of Rice Biology, Hangzhou, China
| | - S Hussain
- China National Rice Research Institute, State Key Laboratory of Rice Biology, Hangzhou, China
| | - S Huang
- China National Rice Research Institute, State Key Laboratory of Rice Biology, Hangzhou, China
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Borges ACP, Piassão JFG, Albani SM, Albertoni EF, Martins MC, Cansian RL, Valduga AT, Hepp LU, Mielniczki-Pereira AA. Multiple metals and agricultural use affects oxidative stress biomarkers in freshwater Aegla crabs. BRAZ J BIOL 2021; 82:e230147. [PMID: 33729329 DOI: 10.1590/1519-6984.230147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 06/18/2020] [Indexed: 11/21/2022] Open
Abstract
Metals and agrochemicals are among the main aquatic contaminants, being able to trigger oxidative stress in exposed organisms. The objective of this work was to evaluate the correlation between the level of oxidative stress biomarkers in Aegla crabs (Crustacea, Anomura) with (i) the set of metals present in the streams sediment and (ii) with land uses of three hydrographic basins. The study was carried out in streams (≤ 2nd order) of hydrographic basins in southern Brazil (Basins of Rio Suzana, Rio Ligeirinho-Leãozinho and Rio Dourado). In these streams were quantified the land uses and Cu, Cr, Cd, Fe, Mn and Zn concentrations in the sediment. The enzymes Catalase (CAT) and Glutathione Reductase (GR), as well as the level of membrane lipid peroxidation (TBARS), were analyzed in adult females. The PCA analysis showed that the distribution of metals was different between the basins. Cd, Cr and Fe were correlated positively with CAT and negatively with TBARS and GR. The Dourado basin had the lowest concentrations of these three metals and the highest levels of TBARS. However, in Dourado basin there is predominance of agriculture land use, and TBARS was positively correlated with agricultural land use. Besides in Dourado basin, GR activity was higher than in the others basins, indicating a compensatory response in relation to CAT inhibition. The basins of Suzana and Ligeirinho-Leãozinho rivers had lower TBARS values, which may be due to the induction of CAT in response to metals accumulated in sediment. In summary, this work indicates that in the basins with a higher concentration of toxic metals there is an adaptive response of CAT induction, which reduces TBARS in Aegla. On the other hand, in the basin with lower metallic contamination, TBARS occurrence was primarily influenced by agricultural land use.
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Affiliation(s)
- A C P Borges
- Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Departamento de Ciências Biológicas, Erechim, RS, Brasil
| | - J F G Piassão
- Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Departamento de Ciências Biológicas, Erechim, RS, Brasil
| | - S M Albani
- Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Departamento de Ciências Biológicas, Erechim, RS, Brasil
| | - E F Albertoni
- Universidade Federal do Rio Grande - FURG, Instituto de Ciências Biológicas, Rio Grande, RS, Brasil
| | - M C Martins
- Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Departamento de Ciências Biológicas, Erechim, RS, Brasil
| | - R L Cansian
- Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Departamento de Ciências Biológicas, Erechim, RS, Brasil
| | - A T Valduga
- Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Departamento de Ciências Biológicas, Erechim, RS, Brasil
| | - L U Hepp
- Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Departamento de Ciências Biológicas, Erechim, RS, Brasil
| | - A A Mielniczki-Pereira
- Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Departamento de Ciências Biológicas, Erechim, RS, Brasil
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Metal bioaccumulation and energy biomarkers in tissues of two populations of Chiromantes eulimene from Richards Bay Harbour, South Africa. SCIENTIFIC AFRICAN 2020. [DOI: 10.1016/j.sciaf.2020.e00558] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Cerezer C, Marins AT, Cerezer FO, Severo ES, Leitemperger JW, Grubel Bandeira NM, Zanella R, Loro VL, Santos S. Influence of pesticides and abiotic conditions on biochemical biomarkers in Aegla aff. longirostri (crustacea, anomura): Implications for conservation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 203:110982. [PMID: 32888624 DOI: 10.1016/j.ecoenv.2020.110982] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 06/29/2020] [Accepted: 06/30/2020] [Indexed: 06/11/2023]
Abstract
Freshwater ecosystems are constantly threatened by the advance of agricultural activities. Abiotic variables (such as temperature, ammonia, and nitrite) and contaminants (e.g. pesticides) can potentially interact, increasing metabolism and the absorption of toxic substances, which can alter the ability of organisms to establish adequate stress responses. This study aimed to verify which pesticides were most frequently found and in the greatest quantities in low-order streams, and whether the combination of these pesticides with the abiotic variables altered the biological metabolism of aeglids. These freshwater crustaceans are important shredders that inhabit low-order streams and are sensitive to disturbances and/or abrupt environmental variations. The animals were exposed in situ in four streams (reference site and sites 1, 2, and 3). The reference site is a preserved stream with no apparent anthropogenic interference where aeglids still occur, while the other sites no longer exhibit populations of these animals and are influenced by agricultural activities. The exposure was performed bimonthly from November 2017 to September 2018 and lasted 96 h. Measured abiotic data and water samples were collected through all days of exposure. The analyzed biochemical parameters were acetylcholinesterase activity in muscle; and glutathione S-transferase, lipid peroxidation, protein carbonylation, non-protein thiols, antioxidant capacity against peroxides, and reactive oxygen species (ROS) in muscle, gills, and hepatopancreas. We found 24 active principles of pesticides, the most frequently being clomazone, atrazine, and propoxur. Bentazone was present at the highest amounts. The parameters evaluated in this study, including biochemical biomarkers and abiotic factors measured from the water, provided a separation of the months as a function of environmental conditions. There was a difference in activity and biomarker levels throughout the year within the same site and in some months between sites. The greater concentration or variety of pesticides associated with extreme abiotic (very high temperatures) data generated increased oxidative stress, with high levels of protein damage and considerable lipid damage in all tissues, as well as elevation in ROS, even with high levels of antioxidant capacity and non-protein thiols. With these data, we intend to warn about the risks of exposure to these environmental conditions by trying to contribute to the preservation of limnic fauna, especially aeglid crabs, because most species are under some degree of threat.
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Affiliation(s)
- Cristina Cerezer
- Programa de Pós-Graduação Em Biodiversidade Animal, Departamento de Ecologia e Evolução, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Avenida Roraima, 1000, Bairro Camobi, CEP, 97105-900, Santa Maria, Rio Grande do Sul, Brazil.
| | - Aline Teixeira Marins
- Programa de Pós-Graduação Em Biodiversidade Animal, Departamento de Ecologia e Evolução, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Avenida Roraima, 1000, Bairro Camobi, CEP, 97105-900, Santa Maria, Rio Grande do Sul, Brazil
| | - Felipe Osmari Cerezer
- Programa de Pós-Graduação Em Biodiversidade Animal, Departamento de Ecologia e Evolução, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Avenida Roraima, 1000, Bairro Camobi, CEP, 97105-900, Santa Maria, Rio Grande do Sul, Brazil
| | - Eduardo Stringini Severo
- Programa de Pós-Graduação Em Biodiversidade Animal, Departamento de Ecologia e Evolução, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Avenida Roraima, 1000, Bairro Camobi, CEP, 97105-900, Santa Maria, Rio Grande do Sul, Brazil
| | - Jossiele Wesz Leitemperger
- Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica Toxicológica, Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Avenida Roraima, 1000, Bairro Camobi, CEP, 97105-900, Santa Maria, Rio Grande do Sul, Brazil
| | - Nelson Miguel Grubel Bandeira
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Avenida Roraima, 1000, Bairro Camobi, CEP, 97105-900, Santa Maria, Rio Grande do Sul, Brazil
| | - Renato Zanella
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Avenida Roraima, 1000, Bairro Camobi, CEP, 97105-900, Santa Maria, Rio Grande do Sul, Brazil
| | - Vania Lucia Loro
- Programa de Pós-Graduação Em Biodiversidade Animal, Departamento de Ecologia e Evolução, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Avenida Roraima, 1000, Bairro Camobi, CEP, 97105-900, Santa Maria, Rio Grande do Sul, Brazil; Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica Toxicológica, Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Avenida Roraima, 1000, Bairro Camobi, CEP, 97105-900, Santa Maria, Rio Grande do Sul, Brazil
| | - Sandro Santos
- Programa de Pós-Graduação Em Biodiversidade Animal, Departamento de Ecologia e Evolução, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Avenida Roraima, 1000, Bairro Camobi, CEP, 97105-900, Santa Maria, Rio Grande do Sul, Brazil
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Madeira D, Mendonça V, Madeira C, Gaiteiro C, Vinagre C, Diniz MS. Molecular assessment of wild populations in the marine realm: Importance of taxonomic, seasonal and habitat patterns in environmental monitoring. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 654:250-263. [PMID: 30447573 DOI: 10.1016/j.scitotenv.2018.11.064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 11/01/2018] [Accepted: 11/05/2018] [Indexed: 06/09/2023]
Abstract
Scientists are currently faced with the challenge of assessing the effects of anthropogenic stressors on aquatic ecosystems. Cellular stress response (CSR) biomarkers are ubiquitous and phylogenetically conserved among metazoans and have been successfully applied in environmental monitoring but they can also vary according to natural biotic and abiotic factors. The reported variability may thus limit the wide application of biomarkers in monitoring, imposing the need to identify variability levels in the field. Our aim was to carry out a comprehensive in situ assessment of the CSR (heat shock protein 70 kDa, ubiquitin, antioxidant enzymes) and oxidative damage (lipid peroxidation) in wild populations across marine taxa by collecting fish, crustaceans, mollusks and cnidarians during two different seasons (spring and summer) and two habitat types (coast and estuary). CSR end-point patterns were different between taxa with mollusks having higher biomarker levels, followed by the cnidarians, while fish and crustaceans showed lower biomarker levels. The PCA showed clear clusters related to mobility/sessile traits with sessile organisms showing greater levels (>2-fold) of CSR proteins and oxidative damage. Mean intraspecific variability in the CSR measured by the coefficient of variation (% CV) (including data from all seasons and sites) was elevated (35-94%). Overall, there was a seasonal differentiation in biomarker patterns across taxonomic groups, especially evident in fish and cnidarians. A differentiation in biomarker patterns between habitat types was also observed and associated with phenotypic plasticity or local adaptation. Overall, specimens collected in the estuary had lower biomarker levels when compared to specimens collected in the coast. This work highlights the importance of assessing baseline biomarker levels across taxa, seasons and habitats prior to applying biomarker analyses in environmental monitoring. Selecting bioindicator species, defining sampling strategies, and identifying confounding factors are crucial preliminary steps that ensure the success of biomarkers as powerful tools in biomonitoring.
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Affiliation(s)
- Diana Madeira
- UCIBIO-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal; Departamento de Biologia & CESAM & ECOMARE, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Vanessa Mendonça
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Carolina Madeira
- UCIBIO-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal; MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Cristiana Gaiteiro
- Experimental Pathology and Therapeutics Group, Portuguese Institute of Oncology of Porto (CI-IPOP), 4200-072 Porto, Portugal
| | - Catarina Vinagre
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Mário S Diniz
- UCIBIO-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal.
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