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Ferreira CP, Moreira RS, Bastolla CLV, Saldaña-Serrano M, Lima D, Gomes CHAM, Bainy ACD, Lüchmann KH. Transcriptomic investigation and biomarker discovery for zinc response in oysters Crassostrea gasar. Mar Genomics 2024; 75:101109. [PMID: 38603950 DOI: 10.1016/j.margen.2024.101109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 03/03/2024] [Accepted: 03/24/2024] [Indexed: 04/13/2024]
Abstract
In an era of unprecedented industrial and agricultural growth, metal contamination in marine environments is a pressing concern. Sentinel organisms such as the mangrove oyster Crassostrea gasar provide valuable insights into these environments' health. However, a comprehensive understanding of the molecular mechanisms underlying their response to metal exposure remains elusive. To address this gap, we reanalyzed the 454-sequencing data of C. gasar, utilizing an array of bioinformatics workflow of CDTA (Combined De Novo Transcriptome Assembly) to generate a more representative assembly. In parallel, C. gasar individuals were exposed to two concentrations of zinc (850 and 4500 μg L-1 Zn) for 48 h to understand their molecular responses. We utilized Trinotate workflow for the 11,684-CDTA unigenes annotation, with most transcripts aligning with the genus Crassostrea. Our analysis indicated that 67.3% of transcript sequences showed homology with Pfam, while 51.4% and 54.5%, respectively had GO and KO terms annotated. We identified potential metal pollution biomarkers, focusing on metal-related genes, such as those related to the GSH biosynthesis (CHAC1 and GCLC-like), to zinc transporters (ZNT2-like), and metallothionein (MT-like). The evolutionary conservation of these genes within the Crassostrea genus was assessed through phylogenetic analysis. Further, these genes were evaluated by qPCR in the laboratory exposed oysters. All target genes exhibited significant upregulation upon exposure to Zn at both 850 and 4500 μg L-1, except for GCLC-like, which showed upregulation only at the higher concentration of 4500 μg L-1. This result suggests distinct activation thresholds and complex interactions among these genes in response to varying Zn concentrations. Our study provides insights into the molecular responses of C. gasar to Zn, adding valuable tools for monitoring metal pollution in marine ecosystems using the mangrove oyster as a sentinel organism.
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Affiliation(s)
- Clarissa P Ferreira
- Multicentric PostGraduate Program in Biochemistry and Molecular Biology - PMBqBM, Santa Catarina State University, Lages 88520-000, Brazil
| | - Renato S Moreira
- Federal Institute of Santa Catarina, Gaspar 89111-009, Brazil; Bioinformatic Laboratory, Federal University of Santa Catarina, Florianópolis 88040-970, Brazil
| | - Camila L V Bastolla
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, Florianópolis 88034-257, Brazil
| | - Miguel Saldaña-Serrano
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, Florianópolis 88034-257, Brazil
| | - Daína Lima
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, Florianópolis 88034-257, Brazil
| | - Carlos H A M Gomes
- Laboratory of Marine Mollusks (LMM), Department of Aquaculture, Center of Agricultural Science, Federal University of Santa Catarina, UFSC, Florianópolis, Santa Catarina, Brazil
| | - Afonso C D Bainy
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, Florianópolis 88034-257, Brazil
| | - Karim H Lüchmann
- Department of Scientific and Technological Education, Santa Catarina State University, Florianópolis 88035-001, Brazil.
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Guerreiro FDC, Alves TC, Saldaña-Serrano M, Gomes CHADM, Lima DD, Bastolla CLV, Ferreira CP, Bitschinski D, Rutkoski CF, Grott SC, Israel NG, Lüchmann KH, Marques MRF, Melo CMRD, Bainy ACD, Almeida EAD. Integrating pollutant levels and biochemical biomarkers in oysters (Crassostrea rhizophorae and Crassostrea gasar) indicates anthropic impacts on marine environments along the coast of Santa Catarina state, Brazil. MARINE ENVIRONMENTAL RESEARCH 2024; 194:106309. [PMID: 38169221 DOI: 10.1016/j.marenvres.2023.106309] [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: 10/06/2023] [Revised: 11/25/2023] [Accepted: 12/14/2023] [Indexed: 01/05/2024]
Abstract
This study aimed to carry out a general diagnosis of the contamination of the coastal marine environment of the Santa Catarina state (SC, Brazil) by different classes of environmental pollutants, as well as to evaluate possible adverse effects of the contaminants on biochemical biomarkers of oysters, Crassostrea gasar and Crassostrea rhizophorae. 107 chemicals were evaluated in water, sediment and oyster samples from nine sites along the coastline of SC. We also examined various biochemical biomarkers in the oysters' gills and digestive glands to assess potential effects of contaminants. In general, the northern and central regions of the littoral of SC presented higher occurrences and magnitudes of contaminants than the southern region, which is probably related to higher urbanization of center and northern areas of the littoral. The biomarker analysis in the oysters reflected these contamination patterns, with more significant alterations observed in regions with higher levels of pollutants. Our results may serve as a first baseline for future and more extensive monitoring actions and follow-up of the degree of contamination in the state, allowing for inspection actions and management of areas most affected by marine pollutants.
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Affiliation(s)
- Fernando de Campos Guerreiro
- Programa de Pós-Graduação em Biodiversidae, Centro de Estudos em Ecotoxicologia Aquática (CETAq)., Universidade Regional de Blumenau (FURB), Blumenau, SC, Brazil
| | - Thiago Caíque Alves
- Programa de Pós-Graduação em Biodiversidae, Centro de Estudos em Ecotoxicologia Aquática (CETAq)., Universidade Regional de Blumenau (FURB), Blumenau, SC, Brazil
| | - Miguel Saldaña-Serrano
- Laboratório de Biomarcadores de Contaminação Aquática e Imunoquímica - LABCAI, Universidade Federal de Santa Catarina - UFSC, Florianópolis, SC, Brazil
| | | | - Daína de Lima
- Laboratório de Biomarcadores de Contaminação Aquática e Imunoquímica - LABCAI, Universidade Federal de Santa Catarina - UFSC, Florianópolis, SC, Brazil
| | - Camila Lisarb Velasquez Bastolla
- Laboratório de Biomarcadores de Contaminação Aquática e Imunoquímica - LABCAI, Universidade Federal de Santa Catarina - UFSC, Florianópolis, SC, Brazil
| | - Clarissa Pellegrini Ferreira
- Departamento de Engenharia de Pesca e Ciências Biológicas - DEPB, Universidade do Estado de Santa Catarina - UDESC, Laguna, Brazil
| | - Daiane Bitschinski
- Programa de Pós-Graduação em Biodiversidae, Centro de Estudos em Ecotoxicologia Aquática (CETAq)., Universidade Regional de Blumenau (FURB), Blumenau, SC, Brazil
| | - Camila Fatima Rutkoski
- Programa de Pós-Graduação em Biodiversidae, Centro de Estudos em Ecotoxicologia Aquática (CETAq)., Universidade Regional de Blumenau (FURB), Blumenau, SC, Brazil
| | - Suelen Cristina Grott
- Programa de Pós-Graduação em Biodiversidae, Centro de Estudos em Ecotoxicologia Aquática (CETAq)., Universidade Regional de Blumenau (FURB), Blumenau, SC, Brazil
| | - Nicole Grasmuk Israel
- Programa de Pós-Graduação em Biodiversidae, Centro de Estudos em Ecotoxicologia Aquática (CETAq)., Universidade Regional de Blumenau (FURB), Blumenau, SC, Brazil
| | - Karim Hahn Lüchmann
- Departamento de Engenharia de Pesca e Ciências Biológicas - DEPB, Universidade do Estado de Santa Catarina - UDESC, Laguna, Brazil
| | - Maria Risoleta Freire Marques
- Laboratório de Biomarcadores de Contaminação Aquática e Imunoquímica - LABCAI, Universidade Federal de Santa Catarina - UFSC, Florianópolis, SC, Brazil
| | | | - Afonso Celso Dias Bainy
- Laboratório de Biomarcadores de Contaminação Aquática e Imunoquímica - LABCAI, Universidade Federal de Santa Catarina - UFSC, Florianópolis, SC, Brazil
| | - Eduardo Alves de Almeida
- Programa de Pós-Graduação em Biodiversidae, Centro de Estudos em Ecotoxicologia Aquática (CETAq)., Universidade Regional de Blumenau (FURB), Blumenau, SC, Brazil; Departamento de Ciências Naturais, Universidade Regional de Blumenau (FURB), Blumenau, SC, Brazil.
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