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Protopopova MV, Pavlichenko VV, Luckenbach T. Changes of cellular stress response related hsp70 and abcb1 transcript and Hsp70 protein levels in Siberian freshwater amphipods upon exposure to cadmium chloride in the lethal concentration range. PeerJ 2020; 8:e8635. [PMID: 32195047 PMCID: PMC7067181 DOI: 10.7717/peerj.8635] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 01/26/2020] [Indexed: 01/17/2023] Open
Abstract
The induction of cellular stress response systems, heat shock protein hsp70/Hsp70 and multixenobiotic transporter abcb1, by cadmium chloride (CdCl2) was explored in amphipod species with different stress adaptation strategies from the Lake Baikal area. Based on the lethal concentrations (LC) of CdCl2, the sensitivities of the different species to CdCl2 were ranked (24 hr LC50 in mg/L CdCl2 (mean/95% confidence interval)): Gammarus lacustris (1.7/1.3–2.4) < Eulimnogammarus cyaneus (2.9/2.1–4.0) < Eulimnogammarus verrucosus (5.7/3.8–8.7) < Eulimnogammarus vittatus (18.1/12.4–26.6). Conjugated dienes, indicating lipid peroxidation, were significantly increased after 24 hr exposures to 5 mg/L CdCl2 only in the more CdCl2-sensitive species G. lacustris and E. cyaneus. Upon treatment with 0.54 to 5.8 mg/L CdCl2 for 1, 6 and 24 hrs, hsp70 transcript levels were generally more increased after the longer exposure times and in the more CdCl2-sensitive species. Relating the CdCl2 exposure concentrations to LCx values revealed that across the species the increases of hsp70 transcript levels were comparatively low (up to 2.6-fold) at CdCl2 concentrations ≤LC50. Relative hsp70 transcript levels were maximally increased in E. cyaneus by 5 mg/L CdCl2 (\documentclass[12pt]{minimal}
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}{}$\hat {=}$\end{document}= ˆLC70) at 24 hrs (9.1-fold increase above the respective control). When G. lacustris was exposed to 5 mg/L CdCl2 (\documentclass[12pt]{minimal}
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}{}$\hat {=}$\end{document}= ˆLC90) for 24 hrs, the increase in hsp70 was in comparison to E. cyaneus considerably less pronounced (3.0-fold increase in hsp70 levels relative to control). Upon exposure of amphipods to 5 mg/L CdCl2, increases in Hsp70 protein levels compared to untreated controls were highest in E. cyaneus at 1 and 6 hrs (5 mg/L CdCl2\documentclass[12pt]{minimal}
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}{}$\hat {=}$\end{document}= ˆ LC70) and in E. verrucosus at 24 hrs (5 mg/L CdCl2\documentclass[12pt]{minimal}
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}{}$\hat {=}$\end{document}= ˆ LC45). Thus, when the fold increases in Hsp70 protein levels in the different amphipod species were related to the respective species-specific LCx values a similar bell-shaped trend as for hsp70 transcript levels was seen across the species. Transcript levels of abcb1 in CdCl2exposed individuals of the different amphipod species varied up to 4.7-fold in relation to the respective controls. In contrast to hsp70/Hsp70, abcb1 transcripts in CdCl2 exposed individuals of the different amphipod species did not indicate similar levels of induction of abcb1 at equal LCx levels across the species. Induction of hsp70 and abcb1 genes and Hsp70 proteins by CdCl2 in the lethal concentration range shows that these cellular responses are rather insensitive to CdCl2 stress in the examined amphipod species. Furthermore, the increase of expression of these cellular defense systems at such high stress levels suggests that induction of these genes is not related to the maintenance of normal metabolism but to mitigation of the effects of severe toxic stress.
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Affiliation(s)
- Marina V Protopopova
- Siberian Institute of Plant Physiology and Biochemistry SB RAS, Irkutsk, Russia.,Faculty of Biology and Soil Sciences, Irkutsk State University, Irkutsk, Russia
| | - Vasiliy V Pavlichenko
- Siberian Institute of Plant Physiology and Biochemistry SB RAS, Irkutsk, Russia.,Faculty of Biology and Soil Sciences, Irkutsk State University, Irkutsk, Russia
| | - Till Luckenbach
- Department of Bioanalytical Ecotoxicology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany
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Shatilina Z, Drozdova P, Bedulina D, Rivarola-Duarte L, Schreiber S, Otto C, Jühling F, Aulhorn S, Busch W, Lubyaga Y, Kondrateva E, Pobezhimova T, Jakob L, Lucassen M, Sartoris FJ, Hackermüller J, Pörtner HO, Stadler PF, Luckenbach T, Timofeyev M. Transcriptome-level effects of the model organic pollutant phenanthrene and its solvent acetone in three amphipod species. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2019; 33:100630. [PMID: 31710888 DOI: 10.1016/j.cbd.2019.100630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 09/19/2019] [Accepted: 09/29/2019] [Indexed: 12/11/2022]
Abstract
Polyaromatic hydrocarbons (PAH) are common pollutants of water ecosystems originating from incineration processes and contamination with mineral oil. Water solubility of PAHs is generally low; for toxicity tests with aquatic organisms, they are therefore usually dissolved in organic solvents. Here we examined the effects of a typical model PAH, phenanthrene, and a solvent, acetone, on amphipods as relevant aquatic invertebrate models. Two of these species, Eulimnogammarus verrucosus and Eulimnogammarus cyaneus, are common endemics of the oligotrophic and pristine Lake Baikal, while one, Gammarus lacustris, is widespread throughout the Holarctic and inhabits smaller and more eutrophic water bodies in the Baikal area. Neither solvent nor phenanthrene caused mortality at the applied concentrations, but both substances affected gene expression in all species. Differential gene expression was more profound in the species from Lake Baikal than in the Holarctic species. Moreover, in one of the Baikal species, E. cyaneus, we found that many known components of the cellular xenobiotic detoxification system reacted to the treatments. Finally, we detected a negative relationship between changes in transcript abundances in response to the solvent and phenanthrene. This mixture effect, weaker than the impact by a single mixture component, needs further exploration.
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Affiliation(s)
- Zhanna Shatilina
- Institute of Biology, Irkutsk State University, Lenin str. 3, RUS-664003 Irkutsk, Russia; Baikal Research Centre, Lenin str. 21, RUS-664003 Irkutsk, Russia
| | - Polina Drozdova
- Institute of Biology, Irkutsk State University, Lenin str. 3, RUS-664003 Irkutsk, Russia; Bioinformatics Group, Department of Computer Science, Universität Leipzig, Härtelstraße 16-18, D-04107 Leipzig, Germany; Interdisciplinary Center for Bioinformatics, Universität Leipzig, Härtelstraße 16-18, D-04107 Leipzig, Germany
| | - Daria Bedulina
- Institute of Biology, Irkutsk State University, Lenin str. 3, RUS-664003 Irkutsk, Russia; Baikal Research Centre, Lenin str. 21, RUS-664003 Irkutsk, Russia
| | - Lorena Rivarola-Duarte
- Bioinformatics Group, Department of Computer Science, Universität Leipzig, Härtelstraße 16-18, D-04107 Leipzig, Germany; Interdisciplinary Center for Bioinformatics, Universität Leipzig, Härtelstraße 16-18, D-04107 Leipzig, Germany
| | - Stephan Schreiber
- Young Investigator Group Bioinformatics & Transcriptomics, UFZ - Helmholtz Centre for Environmental Research, Permoserstraße 15, D-04318 Leipzig, Germany
| | - Christian Otto
- ecSeq Bioinformatics GmbH, Sternwartenstraße 29, D-04103 Leipzig, Germany
| | - Frank Jühling
- Inserm U1110, Institut de Recherche sur les Maladies Virales et Hépatiques, 3 Rue Koeberlé, F-67000 Strasbourg, France; Université de Strasbourg, 4 Rue Blaise Pascal, F-67000 Strasbourg, France
| | - Silke Aulhorn
- Department of Bioanalytical Ecotoxicology, UFZ - Helmholtz Centre for Environmental Research, Permoserstraße 15, D-04318 Leipzig, Germany
| | - Wibke Busch
- Department of Bioanalytical Ecotoxicology, UFZ - Helmholtz Centre for Environmental Research, Permoserstraße 15, D-04318 Leipzig, Germany
| | - Yulia Lubyaga
- Institute of Biology, Irkutsk State University, Lenin str. 3, RUS-664003 Irkutsk, Russia; Baikal Research Centre, Lenin str. 21, RUS-664003 Irkutsk, Russia
| | - Elizaveta Kondrateva
- Institute of Biology, Irkutsk State University, Lenin str. 3, RUS-664003 Irkutsk, Russia; Siberian Institute of Plant Physiology and Biochemistry, Siberian Branch, RAS, Lermontov str. 132, 664033 Irkutsk, Russia
| | - Tamara Pobezhimova
- Siberian Institute of Plant Physiology and Biochemistry, Siberian Branch, RAS, Lermontov str. 132, 664033 Irkutsk, Russia
| | - Lena Jakob
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, D-27570 Bremerhaven, Germany
| | - Magnus Lucassen
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, D-27570 Bremerhaven, Germany
| | - Franz J Sartoris
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, D-27570 Bremerhaven, Germany
| | - Jörg Hackermüller
- Young Investigator Group Bioinformatics & Transcriptomics, UFZ - Helmholtz Centre for Environmental Research, Permoserstraße 15, D-04318 Leipzig, Germany
| | - Hans-Otto Pörtner
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, D-27570 Bremerhaven, Germany
| | - Peter F Stadler
- Bioinformatics Group, Department of Computer Science, Universität Leipzig, Härtelstraße 16-18, D-04107 Leipzig, Germany; Competence Center for Scalable Data Services and Solutions Dresden/Leipzig, Interdisciplinary Center for Bioinformatics, German Centre for Integrative Biodiversity Research (iDiv), Leipzig Research Center for Civilization Diseases, Universität Leipzig, Augustusplatz 12, D-04107 Leipzig, Germany; Max Planck Institute for Mathematics in the Sciences, Inselstraße 22, D-04103 Leipzig, Germany; Department of Theoretical Chemistry, University of Vienna, Währinger Straße 17, A-1090 Vienna, Austria; Facultad de Ciencias, Universidad National de Colombia, Sede Bogotá, Ciudad Universitaria, COL-111321 Bogotá, D.C., Colombia; Santa Fe Institute, 1399 Hyde Park Rd., NM87501 Santa Fe, USA; Interdisciplinary Center for Bioinformatics, Universität Leipzig, Härtelstraße 16-18, D-04107 Leipzig, Germany
| | - Till Luckenbach
- Department of Bioanalytical Ecotoxicology, UFZ - Helmholtz Centre for Environmental Research, Permoserstraße 15, D-04318 Leipzig, Germany
| | - Maxim Timofeyev
- Institute of Biology, Irkutsk State University, Lenin str. 3, RUS-664003 Irkutsk, Russia; Baikal Research Centre, Lenin str. 21, RUS-664003 Irkutsk, Russia.
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Drozdova P, Rivarola-Duarte L, Bedulina D, Axenov-Gribanov D, Schreiber S, Gurkov A, Shatilina Z, Vereshchagina K, Lubyaga Y, Madyarova E, Otto C, Jühling F, Busch W, Jakob L, Lucassen M, Sartoris FJ, Hackermüller J, Hoffmann S, Pörtner HO, Luckenbach T, Timofeyev M, Stadler PF. Comparison between transcriptomic responses to short-term stress exposures of a common Holarctic and endemic Lake Baikal amphipods. BMC Genomics 2019; 20:712. [PMID: 31519144 PMCID: PMC6743106 DOI: 10.1186/s12864-019-6024-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 08/12/2019] [Indexed: 01/09/2023] Open
Abstract
Background Lake Baikal is one of the oldest freshwater lakes and has constituted a stable environment for millions of years, in stark contrast to small, transient bodies of water in its immediate vicinity. A highly diverse endemic endemic amphipod fauna is found in one, but not the other habitat. We ask here whether differences in stress response can explain the immiscibility barrier between Lake Baikal and non-Baikal faunas. To this end, we conducted exposure experiments to increased temperature and the toxic heavy metal cadmium as stressors. Results Here we obtained high-quality de novo transcriptome assemblies, covering mutiple conditions, of three amphipod species, and compared their transcriptomic stress responses. Two of these species, Eulimnogammarus verrucosus and E. cyaneus, are endemic to Lake Baikal, while the Holarctic Gammarus lacustris is a potential invader. Conclusions Both Baikal species possess intact stress response systems and respond to elevated temperature with relatively similar changes in their expression profiles. G. lacustris reacts less strongly to the same stressors, possibly because its transcriptome is already perturbed by acclimation conditions. Electronic supplementary material The online version of this article (10.1186/s12864-019-6024-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Polina Drozdova
- Institute of Biology, Irkutsk State University, Lenin str. 3, Irkutsk, RUS-664025, Russia.,Bioinformatics Group, Department of Computer Science, and Interdisciplinary Center for Bioinformatics, Universität Leipzig, Härtelstraße 16-18, Leipzig, D-04107, Germany
| | - Lorena Rivarola-Duarte
- Bioinformatics Group, Department of Computer Science, and Interdisciplinary Center for Bioinformatics, Universität Leipzig, Härtelstraße 16-18, Leipzig, D-04107, Germany.,Bioinformatics and Information Technology, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstraße 3, Seeland OT Gatersleben, D-06466, Germany.,Plant Genome and Systems Biology, Helmholtz Zentrum München, Ingolstädter Landstraße 1, Neuherberg, D-85764, Germany
| | - Daria Bedulina
- Institute of Biology, Irkutsk State University, Lenin str. 3, Irkutsk, RUS-664025, Russia.,Baikal Research Centre, Lenin str. 21, Irkutsk, RUS-664025, Russia
| | - Denis Axenov-Gribanov
- Institute of Biology, Irkutsk State University, Lenin str. 3, Irkutsk, RUS-664025, Russia.,Baikal Research Centre, Lenin str. 21, Irkutsk, RUS-664025, Russia
| | - Stephan Schreiber
- Young Investigator Group Bioinformatics & Transcriptomics, UFZ - Helmholtz Centre for Environmental Research, Permoserstraße 15, Leipzig, D-04318, Germany
| | - Anton Gurkov
- Institute of Biology, Irkutsk State University, Lenin str. 3, Irkutsk, RUS-664025, Russia.,Baikal Research Centre, Lenin str. 21, Irkutsk, RUS-664025, Russia
| | - Zhanna Shatilina
- Institute of Biology, Irkutsk State University, Lenin str. 3, Irkutsk, RUS-664025, Russia.,Baikal Research Centre, Lenin str. 21, Irkutsk, RUS-664025, Russia
| | - Kseniya Vereshchagina
- Institute of Biology, Irkutsk State University, Lenin str. 3, Irkutsk, RUS-664025, Russia.,Baikal Research Centre, Lenin str. 21, Irkutsk, RUS-664025, Russia
| | - Yulia Lubyaga
- Institute of Biology, Irkutsk State University, Lenin str. 3, Irkutsk, RUS-664025, Russia.,Baikal Research Centre, Lenin str. 21, Irkutsk, RUS-664025, Russia
| | - Ekaterina Madyarova
- Institute of Biology, Irkutsk State University, Lenin str. 3, Irkutsk, RUS-664025, Russia.,Baikal Research Centre, Lenin str. 21, Irkutsk, RUS-664025, Russia
| | - Christian Otto
- ecSeq Bioinformatics GmbH, Sternwartenstraße 29, Leipzig, D-04103, Germany
| | - Frank Jühling
- Inserm U1110, Institut de Recherche sur les Maladies Virales et Hépatiques, 3 Rue Koeberlé, Strasbourg, F-67000, France.,Université de Strasbourg, 4 Rue Blaise Pascal, Strasbourg, F-67000, France
| | - Wibke Busch
- Department of Bioanalytical Ecotoxicology, UFZ - Helmholtz Centre for Environmental Research, Permoserstraße 15, Leipzig, D-04318, Germany
| | - Lena Jakob
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, Bremerhaven, D-27570, Germany
| | - Magnus Lucassen
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, Bremerhaven, D-27570, Germany
| | - Franz Josef Sartoris
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, Bremerhaven, D-27570, Germany
| | - Jörg Hackermüller
- Young Investigator Group Bioinformatics & Transcriptomics, UFZ - Helmholtz Centre for Environmental Research, Permoserstraße 15, Leipzig, D-04318, Germany
| | - Steve Hoffmann
- Bioinformatics Group, Department of Computer Science, and Interdisciplinary Center for Bioinformatics, Universität Leipzig, Härtelstraße 16-18, Leipzig, D-04107, Germany
| | - Hans-Otto Pörtner
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, Bremerhaven, D-27570, Germany
| | - Till Luckenbach
- Department of Bioanalytical Ecotoxicology, UFZ - Helmholtz Centre for Environmental Research, Permoserstraße 15, Leipzig, D-04318, Germany
| | - Maxim Timofeyev
- Institute of Biology, Irkutsk State University, Lenin str. 3, Irkutsk, RUS-664025, Russia.,Baikal Research Centre, Lenin str. 21, Irkutsk, RUS-664025, Russia
| | - Peter F Stadler
- Bioinformatics Group, Department of Computer Science, and Interdisciplinary Center for Bioinformatics, Universität Leipzig, Härtelstraße 16-18, Leipzig, D-04107, Germany. .,Max Planck Institute for Mathematics in the Sciences, Inselstraße 22, Leipzig, D-04103, Germany. .,Department of Theoretical Chemistry, University of Vienna, Währinger Straße 17, Vienna, A-1090, Austria. .,Facultad de Ciencias, Universidad National de Colombia, Sede Bogotá, Ciudad Universitaria, Bogotá, D.C., COL-111321, Colombia. .,Santa Fe Institute, 1399 Hyde Park Rd., Santa Fe, NM87501, USA.
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Gurkov A, Rivarola-Duarte L, Bedulina D, Fernández Casas I, Michael H, Drozdova P, Nazarova A, Govorukhina E, Timofeyev M, Stadler PF, Luckenbach T. Indication of ongoing amphipod speciation in Lake Baikal by genetic structures within endemic species. BMC Evol Biol 2019; 19:138. [PMID: 31286865 PMCID: PMC6613252 DOI: 10.1186/s12862-019-1470-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 06/27/2019] [Indexed: 08/30/2023] Open
Abstract
Background The ancient Lake Baikal is characterized by an outstanding diversity of endemic faunas with more than 350 amphipod species and subspecies. We determined the genetic diversity within the endemic littoral amphipod species Eulimnogammarus verrucosus, E. cyaneus and E. vittatus and investigated whether within those species genetically separate populations occur across Lake Baikal. Gammarus lacustris from water bodies in the Baikal area was examined for comparison. Results Genetic diversities within a species were determined based on fragments of cytochrome c oxidase I (COI) and for E. verrucosus additionally of 18S rDNA. Highly location-specific haplogroups of E. verrucosus and E. vittatus were found at the southern and western shores of Baikal that are separated by the Angara River outflow; E. verrucosus from the eastern shore formed a further, clearly distinct haplotype cluster possibly confined by the Selenga River and Angarskiy Sor deltas. The genetic diversities within these haplogroups were lower than between the different haplogroups. Intraspecific genetic diversities within E. verrucosus and E. vittatus with 13 and 10%, respectively, were similar to interspecies differences indicating the occurrence of cryptic, morphologically highly similar species; for E. verrucosus this was confirmed with 18S rDNA. The haplotypes of E. cyaneus and G. lacustris specimens were with intraspecific genetic distances of 3 and 2%, respectively, more homogeneous indicating no or only recent disruption of gene flow of E. cyaneus across Baikal and recent colonization of water bodies around Baikal by G. lacustris. Conclusions Our finding of separation of subgroups of Baikal endemic amphipods to different degrees points to a species-specific ability of dispersal across areas with adverse conditions and to potential geographical dispersal barriers in Lake Baikal. Electronic supplementary material The online version of this article (10.1186/s12862-019-1470-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Anton Gurkov
- Irkutsk State University, Karl Marx st. 1, 664003, Irkutsk, Russia.,Baikal Research Centre, Lenin st. 21, Irkutsk, 664003, Russia
| | - Lorena Rivarola-Duarte
- Interdisciplinary Center for Bioinformatics, University of Leipzig, Härtelstraße 16-18, D-04107, Leipzig, Germany
| | - Daria Bedulina
- Irkutsk State University, Karl Marx st. 1, 664003, Irkutsk, Russia.,Baikal Research Centre, Lenin st. 21, Irkutsk, 664003, Russia
| | - Irene Fernández Casas
- Department of Bioanalytical Ecotoxicology, UFZ - Helmholtz Centre for Environmental Research, Permoserstraße 15, D-04318, Leipzig, Germany
| | - Hendrik Michael
- Department of Bioanalytical Ecotoxicology, UFZ - Helmholtz Centre for Environmental Research, Permoserstraße 15, D-04318, Leipzig, Germany
| | - Polina Drozdova
- Irkutsk State University, Karl Marx st. 1, 664003, Irkutsk, Russia
| | - Anna Nazarova
- Irkutsk State University, Karl Marx st. 1, 664003, Irkutsk, Russia
| | | | - Maxim Timofeyev
- Irkutsk State University, Karl Marx st. 1, 664003, Irkutsk, Russia.,Baikal Research Centre, Lenin st. 21, Irkutsk, 664003, Russia
| | - Peter F Stadler
- Interdisciplinary Center for Bioinformatics, University of Leipzig, Härtelstraße 16-18, D-04107, Leipzig, Germany
| | - Till Luckenbach
- Department of Bioanalytical Ecotoxicology, UFZ - Helmholtz Centre for Environmental Research, Permoserstraße 15, D-04318, Leipzig, Germany.
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5
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Description of strongly heat-inducible heat shock protein 70 transcripts from Baikal endemic amphipods. Sci Rep 2019; 9:8907. [PMID: 31222132 PMCID: PMC6586656 DOI: 10.1038/s41598-019-45193-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 05/30/2019] [Indexed: 12/17/2022] Open
Abstract
Heat shock proteins/cognates 70 are chaperones essential for proper protein folding. This protein family comprises inducible members (Hsp70s) with expression triggered by the increased concentration of misfolded proteins due to protein-destabilizing conditions, as well as constitutively expressed cognate members (Hsc70s). Previous works on non-model amphipod species Eulimnogammarus verrucosus and Eulimnogammarus cyaneus, both endemic to Lake Baikal in Eastern Siberia, have only revealed a constitutively expressed form, expression of which was moderately further induced by protein-destabilizing conditions. Here we describe heat-inducible hsp70s in these species. Contrary to the common approach of using sequence similarity with hsp/hsc70 of a wide spectrum of organisms and some characteristic features, such as absence of introns within genes and presence of heat shock elements in their promoter areas, the present study is based on next-generation sequencing for the studied or related species followed by differential expression analysis, quantitative PCR validation and detailed investigation of the predicted polypeptide sequences. This approach allowed us to describe a novel type of hsp70 transcripts that overexpress in response to heat shock. Moreover, we propose diagnostic sequence features of this Hsp70 type for amphipods. Phylogenetic comparisons with different types of Hsp/Hsc70s allowed us to suggest that the hsp/hsc70 gene family in Amphipoda diversified into cognate and heat-inducible paralogs independently from other crustaceans. Thus, the cognate and inducible hsp70 types in distant taxa may not be recognized by sequence similarity.
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6
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Jakob L, Bedulina DS, Axenov-Gribanov DV, Ginzburg M, Shatilina ZM, Lubyaga YA, Madyarova EV, Gurkov AN, Timofeyev MA, Pörtner HO, Sartoris FJ, Altenburger R, Luckenbach T. Uptake Kinetics and Subcellular Compartmentalization Explain Lethal but Not Sublethal Effects of Cadmium in Two Closely Related Amphipod Species. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:7208-7218. [PMID: 28493692 DOI: 10.1021/acs.est.6b06613] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Eulimnogammarus cyaneus and Eulimnogammarus verrucosus, closely related amphipod species endemic to Lake Baikal, differ with respect to body size (10- to 50-fold lower fresh weights of E. cyaneus) and cellular stress response (CSR) capacity, potentially causing species-related differences in uptake, internal sequestration, and toxic sensitivity to waterborne cadmium (Cd). We found that, compared to E. verrucosus, Cd uptake rates, related to a given exposure concentration, were higher, and lethal concentrations (50%; LC50) were 2.3-fold lower in E. cyaneus (4 weeks exposure; 6 °C). Upon exposures to species-specific subacutely toxic Cd concentrations (nominal LC1; E. cyaneus: 18 nM (2.0 μg L-1); E. verrucosus: 115 nM (12.9 μg L-1); 4 weeks exposure; 6 °C), Cd amounts in metal sensitive tissue fractions (MSF), in relation to fresh weight, were similar in both species (E. cyaneus: 0.25 ± 0.06 μg g-1; E. verrucosus: 0.26 ± 0.07 μg g-1), whereas relative Cd amounts in the biologically detoxified heat stable protein fraction were 35% higher in E. cyaneus. Despite different potencies in detoxifying Cd, body size appears to mainly explain species-related differences in Cd uptake and sensitivities. When exposed to Cd at LC1 over 4 weeks, only E. verrucosus continuously showed 15-36% reduced oxygen consumption rates indicating metabolic depression and pointing to particular sensitivity of E. verrucosus to persisting low-level toxicant pressure.
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Affiliation(s)
- Lena Jakob
- Department of Integrative Ecophysiology, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research , Am Handelshafen 12, 27570 Bremerhaven, Germany
- Faculty of Biology and Chemistry, University of Bremen , Leobener Straße, 28359 Bremen, Germany
| | - Daria S Bedulina
- Institute of Biology, Irkutsk State University , Karl Marx street 1, 664003 Irkutsk, Russia
| | | | - Michael Ginzburg
- Department of Integrative Ecophysiology, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research , Am Handelshafen 12, 27570 Bremerhaven, Germany
| | - Zhanna M Shatilina
- Institute of Biology, Irkutsk State University , Karl Marx street 1, 664003 Irkutsk, Russia
| | - Yulia A Lubyaga
- Institute of Biology, Irkutsk State University , Karl Marx street 1, 664003 Irkutsk, Russia
| | - Ekaterina V Madyarova
- Institute of Biology, Irkutsk State University , Karl Marx street 1, 664003 Irkutsk, Russia
| | - Anton N Gurkov
- Institute of Biology, Irkutsk State University , Karl Marx street 1, 664003 Irkutsk, Russia
| | - Maxim A Timofeyev
- Institute of Biology, Irkutsk State University , Karl Marx street 1, 664003 Irkutsk, Russia
| | - Hans-O Pörtner
- Department of Integrative Ecophysiology, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research , Am Handelshafen 12, 27570 Bremerhaven, Germany
- Faculty of Biology and Chemistry, University of Bremen , Leobener Straße, 28359 Bremen, Germany
| | - Franz J Sartoris
- Department of Integrative Ecophysiology, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research , Am Handelshafen 12, 27570 Bremerhaven, Germany
| | - Rolf Altenburger
- Department of Bioanalytical Ecotoxicology, UFZ - Helmholtz Centre for Environmental Research , Permoserstraße 15, 04318 Leipzig, Germany
| | - Till Luckenbach
- Department of Bioanalytical Ecotoxicology, UFZ - Helmholtz Centre for Environmental Research , Permoserstraße 15, 04318 Leipzig, Germany
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7
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Jordão R, Campos B, Lemos MFL, Soares AMVM, Tauler R, Barata C. Induction of multixenobiotic defense mechanisms in resistant Daphnia magna clones as a general cellular response to stress. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 175:132-143. [PMID: 27039215 DOI: 10.1016/j.aquatox.2016.03.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 03/07/2016] [Accepted: 03/15/2016] [Indexed: 06/05/2023]
Abstract
Multixenobiotic resistance mechanisms (MXR) were recently identified in Daphnia magna. Previous results characterized gene transcripts of genes encoding and efflux activities of four putative ABCB1 and ABCC transporters that were chemically induced but showed low specificity against model transporter substrates and inhibitors, thus preventing us from distinguishing between activities of different efflux transporter types. In this study we report on the specificity of induction of ABC transporters and of the stress protein hsp70 in clones selected to be genetically resistant to ABCB1 chemical substrates. Clones resistant to mitoxantrone, ivermectin and pentachlorophenol showed distinctive transcriptional responses of transporter protein coding genes and of putative transporter dye activities. Expression of hsp70 proteins also varied across resistant clones. Clones resistant to mitoxantrone and pentachlorophenol showed high constitutive levels of hsp70. Transcriptional levels of the abcb1 gene transporter and of putative dye transporter activity were also induced to a greater extent in the pentachlorophenol resistant clone. Observed higher dye transporter activities in individuals from clones resistant to mitoxantrone and ivermectin were unrelated with transcriptional levels of the studied four abcc and abcb1 transporter genes. These findings suggest that Abcb1 induction in D. magna may be a part of a general cellular stress response.
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Affiliation(s)
- Rita Jordão
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA), Spanish Research Council (IDAEA, CSIC), Barcelona, Spain; Centre for Environmental and Marine studies (CESAM), Department of Biology, University of Aveiro, Aveiro, Portugal; MARE-Marine and Environmental Sciences Centre, ESTM, Polytechnic Institute of Leiria, Peniche, Portugal
| | - Bruno Campos
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA), Spanish Research Council (IDAEA, CSIC), Barcelona, Spain
| | - Marco F L Lemos
- MARE-Marine and Environmental Sciences Centre, ESTM, Polytechnic Institute of Leiria, Peniche, Portugal
| | - Amadeu M V M Soares
- Centre for Environmental and Marine studies (CESAM), Department of Biology, University of Aveiro, Aveiro, Portugal
| | - Romà Tauler
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA), Spanish Research Council (IDAEA, CSIC), Barcelona, Spain
| | - Carlos Barata
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA), Spanish Research Council (IDAEA, CSIC), Barcelona, Spain.
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Jakob L, Axenov‐Gribanov DV, Gurkov AN, Ginzburg M, Bedulina DS, Timofeyev MA, Luckenbach T, Lucassen M, Sartoris FJ, Pörtner H. Lake Baikal amphipods under climate change: thermal constraints and ecological consequences. Ecosphere 2016. [DOI: 10.1002/ecs2.1308] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Lena Jakob
- Department of Integrative EcophysiologyAlfred Wegener Institute Helmholtz Centre for Polar and Marine Research Am Handelshafen 12 27570 Bremerhaven Germany
- Department of Biology and ChemistryUniversity of Bremen Leobener Straße 28359 Bremen Germany
| | | | - Anton N. Gurkov
- Institute of BiologyIrkutsk State University Karl Marx str. 1 664003 Irkutsk Russia
| | - Michael Ginzburg
- Department of Integrative EcophysiologyAlfred Wegener Institute Helmholtz Centre for Polar and Marine Research Am Handelshafen 12 27570 Bremerhaven Germany
| | - Daria S. Bedulina
- Institute of BiologyIrkutsk State University Karl Marx str. 1 664003 Irkutsk Russia
| | - Maxim A. Timofeyev
- Institute of BiologyIrkutsk State University Karl Marx str. 1 664003 Irkutsk Russia
| | - Till Luckenbach
- Department of Bioanalytical EcotoxicologyUFZ – Helmholtz Centre for Environmental Research Permoserstr. 15 04318 Leipzig Germany
| | - Magnus Lucassen
- Department of Integrative EcophysiologyAlfred Wegener Institute Helmholtz Centre for Polar and Marine Research Am Handelshafen 12 27570 Bremerhaven Germany
| | - Franz J. Sartoris
- Department of Integrative EcophysiologyAlfred Wegener Institute Helmholtz Centre for Polar and Marine Research Am Handelshafen 12 27570 Bremerhaven Germany
| | - Hans‐O. Pörtner
- Department of Integrative EcophysiologyAlfred Wegener Institute Helmholtz Centre for Polar and Marine Research Am Handelshafen 12 27570 Bremerhaven Germany
- Department of Biology and ChemistryUniversity of Bremen Leobener Straße 28359 Bremen Germany
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Pavlichenko VV, Protopopova MV, Timofeyev M, Luckenbach T. Identification of a putatively multixenobiotic resistance related Abcb1 transporter in amphipod species endemic to the highly pristine Lake Baikal. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:5453-5468. [PMID: 25367643 DOI: 10.1007/s11356-014-3758-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 10/20/2014] [Indexed: 06/04/2023]
Abstract
The fauna of Lake Baikal in Eastern Siberia, the largest freshwater body on Earth, is characterized by high degrees of biodiversity and endemism. Amphipods, a prominent taxon within the indigenous fauna, occur in an exceptionally high number of endemic species. Considering the specific water chemistry of Lake Baikal with extremely low levels of potentially toxic natural organic compounds, it seems conceivable that certain adaptions to adverse environmental factors are missing in endemic species, such as cellular defense mechanisms mitigating toxic effects of chemicals. The degree to which the endemic fauna is affected by the recently occurring anthropogenic water pollution of Lake Baikal may depend on the existence of such cellular defense mechanisms in those species. We here show that endemic amphipods express transcripts for Abcb1, a major component of the cellular multixenobiotic resistance (MXR) defense against toxic chemicals. Based on a partial abcb1 cDNA sequence from Gammarus lacustris, an amphipod species common across Northern Eurasia but only rarely found in Lake Baikal, respective homologous sequences were cloned from five amphipods endemic to Lake Baikal, Eulimnogammarus verrucosus, E. vittatus, E. cyaneus, E. marituji, and Gmelinoides fasciatus, confirming that abcb1 is transcribed in those species. The effects of thermal (25 °C) and chemical stress (1-2 mg L(-1) phenanthrene) in short-term exposures (up to 24 h) on transcript levels of abcb1 and heat shock protein 70 (hsp70), used as a proxy for cellular stress in the experiments, were exemplarily examined in E. verrucosus, E. cyaneus, and Gammarus lacustris. Whereas increases of abcb1 transcripts upon treatments occurred only in the Baikalian species E. verrucosus and E. cyaneus but not in Gammarus lacustris, changes of hsp70 transcript levels were seen in all three species. At least for species endemic to Lake Baikal, the data thus indicate that regulation of the identified amphipod abcb1 is triggered within the general cellular stress response. This is the first report presenting molecular data on a MXR transporter in amphipods, an ecotoxicologically important but with regard to gene sequence data comparatively little explored taxon.
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Affiliation(s)
- Vasiliy V Pavlichenko
- Siberian Institute of Plant Physiology and Biochemistry, Siberian Branch of Russian Academy of Sciences (SIPPB SB RAS), Lermontov Str. 132, 664033, Irkutsk, Russia
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