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Ter Ü, Ertürk Gürkan S, Gürkan M, Kunili IE, Aksoy E. Pathological and oxidative stress responses of Mytilus galloprovincialis to Vibrio mediterranei infection: An in vivo challenge. FISH & SHELLFISH IMMUNOLOGY 2024; 154:109889. [PMID: 39250984 DOI: 10.1016/j.fsi.2024.109889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2024] [Revised: 09/03/2024] [Accepted: 09/06/2024] [Indexed: 09/11/2024]
Abstract
Since the identification of Vibrio mediterranei as a causative agent in mass mortalities of pen shells across the Mediterranean, elucidating its pathogenicity, virulence, and interactions with other bivalves has gained importance. While the cellular and immune responses of bivalves to various Vibrio species have been extensively studied, the infectious characteristics of this Vibrio species, particularly in the context of pen shell outbreaks, remain unclear for other bivalves. Therefore, to evaluate its pathogenicity, we investigated the histological and oxidative effects on the Mediterranean mussel (Mytilus galloprovincialis), a key species in aquaculture. Two distinct infection setups were established: one involving the inoculation of seawater with the bacterial isolate and another involving direct injection of the bacteria into the mussels. After a 24-h exposure period, histological evaluations were conducted on the mantle, gill, and digestive gland tissues of the mussels. Additionally, measurements of superoxide dismutase (SOD), catalase (CAT), glutathione-S-transferase (GST), and lipid peroxidation levels were performed in the gill and digestive gland tissues. Oxidative responses were significantly elevated in both infection setups compared to the control group, with the directly injected samples exhibiting the highest oxidative responses (p < 0.05). Histological findings indicated that tissue-specific responses to host-pathogen interactions were consistent under both infection conditions. Notable observations included intense hemocytic infiltration in tissues, epithelial hyperplasia, and vacuolization in the gills, as well as focal necrotic areas in the digestive gland. The findings of this study indicate that V. mediterranei, a relatively novel pathogen, can provoke significant acute immune responses and tissue-level reactions in M. galloprovincialis, a species that is both widely distributed and vital to the food chain. These insights into the potential susceptibility of mussels underscore the need for further comprehensive research and inform the development of effective management strategies.
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Affiliation(s)
- Ümmügülsüm Ter
- Çanakkale Onsekiz Mart University, Faculty of Science, Department of Biology, Çanakkale, Turkey
| | - Selin Ertürk Gürkan
- Çanakkale Onsekiz Mart University, Faculty of Science, Department of Biology, Çanakkale, Turkey.
| | - Mert Gürkan
- Çanakkale Onsekiz Mart University, Faculty of Science, Department of Biology, Çanakkale, Turkey
| | - Ibrahim Ender Kunili
- Çanakkale Onsekiz Mart University, Faculty of Marine Science and Technology, Department of Fishing and Processing Technology, Çanakkale, Turkey
| | - Emircan Aksoy
- Çanakkale Onsekiz Mart University, Faculty of Science, Department of Biology, Çanakkale, Turkey
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Carella F, Palić D, Šarić T, Župan I, Gorgoglione B, Prado P, Andree KB, Giantsis IA, Michaelidis B, Lattos A, Theodorou JA, Luis Barja Perez J, Rodriguez S, Scarpa F, Casu M, Antuofermo E, Sanna D, Otranto D, Panarese R, Iaria C, Marino F, Vico GD. Multipathogen infections and multifactorial pathogenesis involved in noble pen shell ( Pinna nobilis) mass mortality events: Background and current pathologic approaches. Vet Pathol 2023; 60:560-577. [PMID: 37458195 DOI: 10.1177/03009858231186737] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Disease outbreaks in several ecologically or commercially important invertebrate marine species have been reported in recent years all over the world. Mass mortality events (MMEs) have affected the noble pen shell (Pinna nobilis), causing its near extinction. Our knowledge of the dynamics of diseases affecting this species is still unclear. Early studies investigating the causative etiological agent focused on a novel protozoan parasite, Haplosporidium pinnae, although further investigations suggested that concurrent polymicrobial infections could have been pivotal in some MMEs, even in the absence of H. pinnae. Indeed, moribund specimens collected during MMEs in Italy, Greece, and Spain demonstrated the presence of a bacteria from within the Mycobacterium simiae complex and, in some cases, species similar to Vibrio mediterranei. The diagnostic processes used for investigation of MMEs are still not standardized and require the expertise of veterinary and para-veterinary pathologists, who could simultaneously evaluate a variety of factors, from clinical signs to environmental conditions. Here, we review the available literature on mortality events in P. nobilis and discuss approaches to define MMEs in P. nobilis. The proposed consensus approach should form the basis for establishing a foundation for future studies aimed at preserving populations in the wild.
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Affiliation(s)
| | - Dušan Palić
- Ludwig-Maximilians-University Munich, Munich, Germany
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- University of Santiago de Compostela, Santiago de Compostela, Spain
| | | | | | | | | | - Domenico Otranto
- University of Bari, Bari, Italy
- Bu-Ali Sina University, Hamedan, Iran
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Vibrio spp. and Their Vibriocin as a Vibriosis Control Measure in Aquaculture. Appl Biochem Biotechnol 2022; 194:4477-4491. [PMID: 35451794 DOI: 10.1007/s12010-022-03919-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/14/2022] [Indexed: 11/02/2022]
Abstract
Vibriosis disease is a major threat to the aquaculture industry caused by Vibrio spp. that are often resistant to antibiotics. Alternative controlling measures such as bacteriocins could be effective due to their narrow-spectrum activity. Hence, this systematic literature review (SLR) was carried out to review the feasibility of Vibrio spp. and their vibriocins to be used as a vibriosis control measure in aquaculture. A literature search using the web of science (WOS) and SCOPUS databases resulted in 42 unique articles which were reviewed. The results showed that Vibrio spp. could be used as a probiotic to control vibriosis, but not recommended due to their opportunistic nature and pathogenesis. Vibriocin showed narrow-spectrum activity against Vibrio spp. including highly pathogenic strains such as V. alginolyticus, V. harveyi, and V. parahaemolyticus. This supported this review's hypothesis of using vibriocin as a targeted vibriosis control measure. Vibrio cholerae was the most studied and showed the highest inhibition range, inhibiting 13 different vibrio and non-vibrio species. Various innovations were reported in the field and vibriocins can now be produced on large scales using whole-cell culture. Vibriocins were structurally diverse, large molecular weight, and relatively heat stable. These vibriocins mainly inhibited the cell wall but could have other novel mechanisms. These properties could affect the extraction process as well as applications in aquaculture, hence, should be considered in future research.
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Andree KB, Carrasco N, Carella F, Furones D, Prado P. Vibrio mediterranei, a potential emerging pathogen of marine fauna: investigation of pathogenicity using a bacterial challenge in Pinna nobilis and development of a species-specific PCR. J Appl Microbiol 2020; 130:617-631. [PMID: 32592599 DOI: 10.1111/jam.14756] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 06/19/2020] [Accepted: 06/19/2020] [Indexed: 11/30/2022]
Abstract
AIMS Extreme mortality events affecting Pinna nobilis, some associated to Vibrio mediterranei, have depleted many populations of this bivalve. The objective of this study was to demonstrate pathogenicity of V. mediterranei in the host P. nobilis by performing a bacterial challenge in P. nobilis to understand if V. mediterranei has specific virulence in this host. To assist this objective, a secondary objective was to develop a species-specific DNA diagnostic test. METHODS AND RESULTS Pinna nobilis collected from local bays were used in a challenge experiment with V. mediterranei (strain IRTA18-108). The virulence in the host background of P. nobilis was demonstrated at doses of 103 CFUs per animal. An alignment of published Vibrio sp. atpA sequences was used to design V. mediterranei-specific primers. Furthermore, data mining of published literature and V. mediterranei genomes identified multiple virulence-related genes (vir genes) from which specific primers were designed for PCR detection of selected genes. CONCLUSION Vibrio mediterranei strain IRTA18-108 is pathogenic in the host P. nobilis. The virulence genes sod, rtx and mshA were identified in this strain. Temperatures of 24°C or higher appear to trigger onset of virulence. Sensitivity and specificity of the Vm atpA PCR is useful for diagnosis of Vibriosis in shellfish. SIGNIFICANCE AND IMPACT OF THE STUDY The presence of previously described virulence genes have been confirmed in this strain. The specific Vm atpA PCR assay will aid management of future epizootics of this emerging pathogen of aquatic fauna, and improve surveillance capabilities for mortality events where Vibrios are suspect.
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Affiliation(s)
- K B Andree
- Institute for Research and Technology in Food and Agriculture, San Carlos de la Ràpita (Tarragona), Spain
| | - N Carrasco
- Institute for Research and Technology in Food and Agriculture, San Carlos de la Ràpita (Tarragona), Spain
| | - F Carella
- Department of Biology Naples, University of Naples Federico II, Complesso di MSA, Naples, Italy
| | - D Furones
- Institute for Research and Technology in Food and Agriculture, San Carlos de la Ràpita (Tarragona), Spain
| | - P Prado
- Institute for Research and Technology in Food and Agriculture, San Carlos de la Ràpita (Tarragona), Spain
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Sangkanu S, Suriyachadkun C, Phongpaichit S. Gordonia sediminis sp. nov., an actinomycete isolated from mangrove sediment. Int J Syst Evol Microbiol 2019; 69:1814-1820. [DOI: 10.1099/ijsem.0.003399] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Suthinee Sangkanu
- 1Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Chanwit Suriyachadkun
- 2BIOTEC Culture Collection, Biodiversity and Biotechnological Resource Research Unit, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Khlong Luang, Pathum Thani, Thailand
| | - Souwalak Phongpaichit
- 3Natural Product Research Center of Excellence, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
- 1Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
- 4Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
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