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Intriago P, Montiel B, Valarezo M, Romero X, Arteaga K, Cercado N, Burgos M, Shinn AP, Montenegro A, Medina A, Gallardo J. Las Bolitas Syndrome in Penaeus vannamei Hatcheries in Latin America. Microorganisms 2024; 12:1186. [PMID: 38930568 PMCID: PMC11205452 DOI: 10.3390/microorganisms12061186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 06/05/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024] Open
Abstract
In September 2023, several hatcheries in Latin America experienced significant mortality rates, up to 90%, in zoea stage 2 of Penaeus vannamei. Observations of fresh mounts revealed structures resembling lipid droplets, similar to those seen in a condition known as "las bolitas syndrome". Routine histopathological examinations identified detached cells and tissues in the digestive tracts of affected zoea, contrasting with the typical algal cell contents seen in healthy zoea. Polymerase chain reaction (PCR) testing for over 20 known shrimp pathogens indicated minimal differences between diseased and healthy batches. Both groups tested negative for acute hepatopancreatic necrosis disease (AHPND) but positive for Vibrio species and Rickettsia-like bacteria in the diseased samples. Histological analyses of the affected zoea revealed characteristic tissue degeneration in the hepatopancreas, forming spheres that eventually migrated into the upper gut, midgut, and midgut caeca, a pathology identified as bolitas syndrome (BS). Microbiological assessments revealed Vibrio species at concentrations of 106 CFU zoea/g in affected zoea, approximately two orders of magnitude higher than in healthy zoea. Bacterial isolation from both healthy and BS-affected zoea on thiosulphate-citrate-bile salts-sucrose (TCBS) agar and CHROMagar™ (Paris, France), followed by identification using API 20E, identified six strains of Vibrio alginolyticus. Despite similarities to "las bolitas syndrome" in fresh mounts, distinct histopathological differences were noted, particularly the presence of sloughed cells in the intestines and variations in hepatopancreatic lobes. This study highlights the critical need for further research to fully understand the etiology and pathology of bolitas syndrome in zoea stage 2 of P. vannamei to develop effective mitigation strategies for hatchery operations.
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Affiliation(s)
- Pablo Intriago
- South Florida Farming Corporation, 13811 Old Sheridan St, Southwest Ranches, FL 33330, USA
- South Florida Farming Laboratory, Av. Miguel Yunez, Km 14.5 via a Samborondón, Almax 3 Etapa 1- Lote 3 Bodega 2, Samborondón, Guayas, Ecuador (M.B.)
| | - Bolivar Montiel
- South Florida Farming Laboratory, Av. Miguel Yunez, Km 14.5 via a Samborondón, Almax 3 Etapa 1- Lote 3 Bodega 2, Samborondón, Guayas, Ecuador (M.B.)
| | - Mauricio Valarezo
- South Florida Farming Laboratory, Av. Miguel Yunez, Km 14.5 via a Samborondón, Almax 3 Etapa 1- Lote 3 Bodega 2, Samborondón, Guayas, Ecuador (M.B.)
| | - Xavier Romero
- Ficus 302 y Antonio Sanchez, Calle 11 N-O, Guayaquil, Ecuador
| | - Kelly Arteaga
- South Florida Farming Laboratory, Av. Miguel Yunez, Km 14.5 via a Samborondón, Almax 3 Etapa 1- Lote 3 Bodega 2, Samborondón, Guayas, Ecuador (M.B.)
| | - Nicole Cercado
- South Florida Farming Laboratory, Av. Miguel Yunez, Km 14.5 via a Samborondón, Almax 3 Etapa 1- Lote 3 Bodega 2, Samborondón, Guayas, Ecuador (M.B.)
| | - Milena Burgos
- South Florida Farming Laboratory, Av. Miguel Yunez, Km 14.5 via a Samborondón, Almax 3 Etapa 1- Lote 3 Bodega 2, Samborondón, Guayas, Ecuador (M.B.)
| | - Andrew P. Shinn
- INVE (Thailand), 471 Bond Street, Bangpood, Pakkred, Nonthaburi 11120, Thailand
- Centre for Sustainable Tropical Fisheries and Aquaculture, James Cook University, Townsville, QLD 4811, Australia
| | - Alejandra Montenegro
- South Florida Farming Laboratory, Av. Miguel Yunez, Km 14.5 via a Samborondón, Almax 3 Etapa 1- Lote 3 Bodega 2, Samborondón, Guayas, Ecuador (M.B.)
| | - Andrés Medina
- South Florida Farming Laboratory, Av. Miguel Yunez, Km 14.5 via a Samborondón, Almax 3 Etapa 1- Lote 3 Bodega 2, Samborondón, Guayas, Ecuador (M.B.)
| | - Jennifer Gallardo
- South Florida Farming Laboratory, Av. Miguel Yunez, Km 14.5 via a Samborondón, Almax 3 Etapa 1- Lote 3 Bodega 2, Samborondón, Guayas, Ecuador (M.B.)
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Correa Velez KE, Alam M, Baalousha MA, Norman RS. Wildfire Ashes from the Wildland-Urban Interface Alter Vibrio vulnificus Growth and Gene Expression. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:8169-8181. [PMID: 38690750 DOI: 10.1021/acs.est.3c08658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
Climate change-induced stressors are contributing to the emergence of infectious diseases, including those caused by marine bacterial pathogens such as Vibrio spp. These stressors alter Vibrio temporal and geographical distribution, resulting in increased spread, exposure, and infection rates, thus facilitating greater Vibrio-human interactions. Concurrently, wildfires are increasing in size, severity, frequency, and spread in the built environment due to climate change, resulting in the emission of contaminants of emerging concern. This study aimed to understand the potential effects of urban interface wildfire ashes on Vibrio vulnificus (V. vulnificus) growth and gene expression using transcriptomic approaches. V. vulnificus was exposed to structural and vegetation ashes and analyzed to identify differentially expressed genes using the HTSeq-DESeq2 strategy. Exposure to wildfire ash altered V. vulnificus growth and gene expression, depending on the trace metal composition of the ash. The high Fe content of the vegetation ash enhanced bacterial growth, while the high Cu, As, and Cr content of the structural ash suppressed growth. Additionally, the overall pattern of upregulated genes and pathways suggests increased virulence potential due to the selection of metal- and antibiotic-resistant strains. Therefore, mixed fire ashes transported and deposited into coastal zones may lead to the selection of environmental reservoirs of Vibrio strains with enhanced antibiotic resistance profiles, increasing public health risk.
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Affiliation(s)
- Karlen Enid Correa Velez
- Department of Environmental Health Sciences, University of South Carolina, 921 Assembly St., Suite 401, Columbia, South Carolina 29208, United States
- NIEHS Center for Oceans and Human Health and Climate Change Interactions, University of South Carolina, 921 Assembly St., Suite 401, Columbia, South Carolina 29208, United States
| | - Mahbub Alam
- Department of Environmental Health Sciences, University of South Carolina, 921 Assembly St., Suite 401, Columbia, South Carolina 29208, United States
- Center for Environmental Nanoscience and Risk, University of South Carolina, 921 Assembly St., Suite 401, Columbia, South Carolina 29208, United States
| | - Mohammed A Baalousha
- Department of Environmental Health Sciences, University of South Carolina, 921 Assembly St., Suite 401, Columbia, South Carolina 29208, United States
- Center for Environmental Nanoscience and Risk, University of South Carolina, 921 Assembly St., Suite 401, Columbia, South Carolina 29208, United States
| | - R Sean Norman
- Department of Environmental Health Sciences, University of South Carolina, 921 Assembly St., Suite 401, Columbia, South Carolina 29208, United States
- NIEHS Center for Oceans and Human Health and Climate Change Interactions, University of South Carolina, 921 Assembly St., Suite 401, Columbia, South Carolina 29208, United States
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López-Landavery EA, Urquizo-Rosado Á, Saavedra-Flores A, Tapia-Morales S, Fernandino JI, Zelada-Mázmela E. Cellular and transcriptomic response to pathogenic and non-pathogenic Vibrio parahaemolyticus strains causing acute hepatopancreatic necrosis disease (AHPND) in Litopenaeus vannamei. FISH & SHELLFISH IMMUNOLOGY 2024; 148:109472. [PMID: 38438059 DOI: 10.1016/j.fsi.2024.109472] [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: 11/21/2023] [Revised: 02/29/2024] [Accepted: 03/01/2024] [Indexed: 03/06/2024]
Abstract
The shrimp industry has historically been affected by viral and bacterial diseases. One of the most recent emerging diseases is Acute Hepatopancreatic Necrosis Disease (AHPND), which causes severe mortality. Despite its significance to sanitation and economics, little is known about the molecular response of shrimp to this disease. Here, we present the cellular and transcriptomic responses of Litopenaeus vannamei exposed to two Vibrio parahaemolyticus strains for 98 h, wherein one is non-pathogenic (VpN) and the other causes AHPND (VpP). Exposure to the VpN strain resulted in minor alterations in hepatopancreas morphology, including reductions in the size of R and B cells and detachments of small epithelial cells from 72 h onwards. On the other hand, exposure to the VpP strain is characterized by acute detachment of epithelial cells from the hepatopancreatic tubules and infiltration of hemocytes in the inter-tubular spaces. At the end of exposure, RNA-Seq analysis revealed functional enrichment in biological processes, such as the toll3 receptor signaling pathway, apoptotic processes, and production of molecular mediators involved in the inflammatory response of shrimp exposed to VpN treatment. The biological processes identified in the VpP treatment include superoxide anion metabolism, innate immune response, antimicrobial humoral response, and toll3 receptor signaling pathway. Furthermore, KEGG enrichment analysis revealed metabolic pathways associated with survival, cell adhesion, and reactive oxygen species, among others, for shrimp exposed to VpP. Our study proves the differential immune responses to two strains of V. parahaemolyticus, one pathogenic and the other nonpathogenic, enlarges our knowledge on the evolution of AHPND in L. vannamei, and uncovers unique perspectives on establishing genomic resources that may function as a groundwork for detecting probable molecular markers linked to the immune system in shrimp.
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Affiliation(s)
- Edgar A López-Landavery
- Laboratorio de Genética, Fisiología y Reproducción, Facultad de Ciencias, Universidad Nacional del Santa, Nuevo Chimbote, Ancash, Peru.
| | - Ángela Urquizo-Rosado
- Laboratorio de Genética, Fisiología y Reproducción, Facultad de Ciencias, Universidad Nacional del Santa, Nuevo Chimbote, Ancash, Peru
| | - Anaid Saavedra-Flores
- Laboratorio de Genética, Fisiología y Reproducción, Facultad de Ciencias, Universidad Nacional del Santa, Nuevo Chimbote, Ancash, Peru
| | - Sandra Tapia-Morales
- Laboratorio de Genética, Fisiología y Reproducción, Facultad de Ciencias, Universidad Nacional del Santa, Nuevo Chimbote, Ancash, Peru
| | - Juan I Fernandino
- Laboratorio de Genética, Fisiología y Reproducción, Facultad de Ciencias, Universidad Nacional del Santa, Nuevo Chimbote, Ancash, Peru; Laboratorio de Biología del Desarrollo - Instituto Tecnológico de Chascomús. INTECH (CONICET-UNSAM), Argentina; Escuela de Bio y Nanotecnologías (UNSAM). Chascomús, Argentina.
| | - Eliana Zelada-Mázmela
- Laboratorio de Genética, Fisiología y Reproducción, Facultad de Ciencias, Universidad Nacional del Santa, Nuevo Chimbote, Ancash, Peru.
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Yaşa İ, Evran S, Eren Eroğlu AE, Önder C, Allahyari M, Menderes G, Kullay M. Partial Characterization of Three Bacteriophages Isolated from Aquaculture Hatchery Water and Their Potential in the Biocontrol of Vibrio spp. Microorganisms 2024; 12:895. [PMID: 38792725 PMCID: PMC11123731 DOI: 10.3390/microorganisms12050895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 04/17/2024] [Accepted: 04/23/2024] [Indexed: 05/26/2024] Open
Abstract
Bacteriophages are currently considered one of the most promising alternatives to antibiotics under the 'One Health' approach due to their ability to effectively combat bacterial infections. This study aimed to characterize Vibrio species in hatchery water samples collected from an aquaculture farm and investigate the biocontrol potential of their bacteriophages. Vibrio spp. (n = 32) isolates confirmed by LNA probe-based qPCR were used as hosts. Three Vibrio phages were isolated. IKEM_vK exhibited a broad host range, infecting V. harveyi (n = 8), V. alginolyticus (n = 2), V. azureus (n = 1), and V. ordalii (n = 1). IKEM_v5 showed lytic activity against V. anguillarum (n = 4) and V. ordalii (n = 1), while IKEM_v14 was specific to V. scophtalmi (n = 4). The morphological appearance of phages and their lytic effects on the host were visualized using scanning electron microscopy (SEM). All three phages remained relatively stable within the pH range of 6-11 and up to 60 °C. The lytic activities and biofilm inhibition capabilities of these phages against planktonic Vibrio cells support their potential applications in controlling vibriosis in aquaculture systems.
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Affiliation(s)
- İhsan Yaşa
- Basic and Industrial Microbiology Section, Biology Department, Faculty of Science, Ege University, 35100 Izmir, Türkiye;
| | - Serap Evran
- Department of Biochemistry, Faculty of Science, Ege University, 35100 Izmir, Türkiye;
| | - Asiye Esra Eren Eroğlu
- Basic and Industrial Microbiology Section, Biology Department, Faculty of Science, Ege University, 35100 Izmir, Türkiye;
| | - Cengiz Önder
- Kılıç Seafood Juvenile Fish Adaptation and Hatchery Facility, 09320 Aydın, Türkiye; (C.Ö.); (G.M.); (M.K.)
| | - Maryam Allahyari
- Department of Biotechnology, Graduate School of Natural and Applied Sciences, Ege University, 35100 Izmir, Türkiye;
| | - Gülçin Menderes
- Kılıç Seafood Juvenile Fish Adaptation and Hatchery Facility, 09320 Aydın, Türkiye; (C.Ö.); (G.M.); (M.K.)
| | - Müberra Kullay
- Kılıç Seafood Juvenile Fish Adaptation and Hatchery Facility, 09320 Aydın, Türkiye; (C.Ö.); (G.M.); (M.K.)
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Indio V, Savini F, Gardini F, Barbieri F, Prandini L, Mekonnen YT, Tomasello F, Giacometti F, Seguino A, Serraino A, De Cesare A. Microbiological safety of dry-cured fish from the raw material to the end of processing. Int J Food Microbiol 2024; 415:110641. [PMID: 38432054 DOI: 10.1016/j.ijfoodmicro.2024.110641] [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: 12/04/2023] [Revised: 02/15/2024] [Accepted: 02/22/2024] [Indexed: 03/05/2024]
Abstract
The commercialization of processed fish products is rising in restaurants and small to medium enterprises. However, there is a lack of data related to the microbiological safety of such products. In this study total aerobic colony count and Enterobacteriaceae, as proxy of process hygiene criteria, and detection of Listeria monocytogenes and concentration of histamine, as food safety criteria, were investigated in Salmo salar (salmon), Xiphias gladius (swordfish) and Thunnus albacares (yellowfin tuna), before, during, and at the end of a dry-curing process, performed in a dedicated cabinet, at controlled temperature, relative humidity and ventilation, up to 240 h. The microbiological parameters were investigated in the tested fish products by culture methods and shotgun metagenomic, while the presence of histamine, and other biogenic amines, was quantified by High Performance Liquid Chromatography. In the raw material, and up to the end of the dry curing process, the concentration of Enterobacteriaceae was always lower than 10 CFU/g, while total aerobic colony counts ranged between 3.9 and 5.4 Log CFU/g in salmon; 5.5 and 5.9 Log CFU/g in swordfish; 4.4 and 4.8 Log CFU/g in tuna. The pH values were significantly different between fish species, in the raw materials and during processing except for T4, occurring 70 h after the start of the process for salmon and after 114 h for swordfish and tuna. Water activity was different at specific sampling points and at the end of processing. Overall, 79 % of the sequences identified in the tested fish samples were assigned to y bacteria. The most abundant phyla were Pseudomonadota, Bacillota and Mycoplasmatota. The microbial populations identified by shotgun metagenomic in the tested fish species clustered well separated one from the other. Moreover, the microbial richness was significantly higher in salmon and tuna in comparison to swordfish. Listeria monocytogenes was not detected in the raw material by using the reference cultural method and very few reads (relative abundance <0.007) were detected in swordfish and tuna by shotgun metagenomic. Histamine producing bacteria, belonging to the genera Vibrio, Morganella, Photobacterium and Klebsiella, were identified primarily in swordfish. However, histamine and other biogenic amines were not detected in any sample. To the best of our knowledge this is the first paper reporting time point determinations of microbiological quality and safety parameters in salmon, swordfish and tuna, before, during and at the end of a dry-curing process. The data collected in this paper can help to predict the risk profile of ready to eat dry-cured fish products during storage before consumption.
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Affiliation(s)
- Valentina Indio
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, Ozzano dell'Emilia (BO), Italy
| | - Federica Savini
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, Ozzano dell'Emilia (BO), Italy.
| | - Fausto Gardini
- Department of Agricultural and Food Science, University of Bologna, Viale Fanin 44, Bologna, Italy
| | - Federica Barbieri
- Department of Agricultural and Food Science, University of Bologna, Viale Fanin 44, Bologna, Italy
| | - Laura Prandini
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, Ozzano dell'Emilia (BO), Italy
| | - Yitagele Terefe Mekonnen
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, Ozzano dell'Emilia (BO), Italy
| | - Federico Tomasello
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, Ozzano dell'Emilia (BO), Italy
| | - Federica Giacometti
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, Ozzano dell'Emilia (BO), Italy
| | - Alessandro Seguino
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, Ozzano dell'Emilia (BO), Italy
| | - Andrea Serraino
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, Ozzano dell'Emilia (BO), Italy
| | - Alessandra De Cesare
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, Ozzano dell'Emilia (BO), Italy
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Qin X, Hou Q, Zhao H, Wang P, Yang S, Liao N, Huang J, Li X, He Q, Nethmini RT, Jiang G, He S, Chen Q, Dong K, Li N. Resource diversity disturbs marine Vibrio diversity and community stability, but loss of Vibrio diversity enhances community stability. Ecol Evol 2024; 14:e11234. [PMID: 38646003 PMCID: PMC11027015 DOI: 10.1002/ece3.11234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 03/13/2024] [Accepted: 03/22/2024] [Indexed: 04/23/2024] Open
Abstract
Vibrio is a salt-tolerant heterotrophic bacterium that occupies an important ecological niche in marine environments. However, little is known about the contribution of resource diversity to the marine Vibrio diversity and community stability. In this study, we investigated the association among resource diversity, taxonomic diversity, phylogenetic diversity, and community stability of marine Vibrio in the Beibu Gulf. V. campbellii and V. hangzhouensis were the dominant groups in seawater and sediments, respectively, in the Beibu Gulf. Higher alpha diversity was observed in the sediments than in the seawater. Marine Vibrio community assembly was dominated by deterministic processes. Pearson's correlation analysis showed that nitrite (NO 2 - -N), dissolved inorganic nitrogen (DIN), ammonium (NH 4 + -N), and pH were the main factors affecting marine Vibrio community stability in the surface, middle, and bottom layers of seawater and sediment, respectively. Partial least-squares path models (PLS-PM) demonstrated that resource diversity, water properties, nutrients, and geographical distance had important impacts on phylogenetic and taxonomic diversity. Regression analysis revealed that the impact of resource diversity on marine Vibrio diversity and community stability varied across different habitats, but loss of Vibrio diversity increases community stability. Overall, this study provided insights into the mechanisms underlying the maintenance of Vibrio diversity and community stability in marine environments.
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Affiliation(s)
- Xinyi Qin
- Laboratory for Coastal Ocean Variation and Disaster Prediction, Key Laboratory of Climate, Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province, College of Ocean and MeteorologyGuangdong Ocean UniversityZhanjiangChina
- Key Laboratory of Environment Change and Resources use in Beibu Gulf, Ministry of EducationNanning Normal UniversityNanningChina
| | - Qinghua Hou
- Laboratory for Coastal Ocean Variation and Disaster Prediction, Key Laboratory of Climate, Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province, College of Ocean and MeteorologyGuangdong Ocean UniversityZhanjiangChina
| | - Huaxian Zhao
- Key Laboratory of Environment Change and Resources use in Beibu Gulf, Ministry of EducationNanning Normal UniversityNanningChina
| | - Pengbin Wang
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of OceanographyMinistry of Natural Re‐SourcesHangzhouChina
| | - Shu Yang
- Key Laboratory of Environment Change and Resources use in Beibu Gulf, Ministry of EducationNanning Normal UniversityNanningChina
| | - Nengjian Liao
- College of Environmental Science and EngineeringGuilin University of TechnologyGuilinChina
| | | | - Xiaoli Li
- School of AgricultureLudong UniversityYantaiChina
| | - Qing He
- Laboratory for Coastal Ocean Variation and Disaster Prediction, Key Laboratory of Climate, Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province, College of Ocean and MeteorologyGuangdong Ocean UniversityZhanjiangChina
| | - Rajapakshalage Thashikala Nethmini
- Laboratory for Coastal Ocean Variation and Disaster Prediction, Key Laboratory of Climate, Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province, College of Ocean and MeteorologyGuangdong Ocean UniversityZhanjiangChina
| | - Gonglingxia Jiang
- Laboratory for Coastal Ocean Variation and Disaster Prediction, Key Laboratory of Climate, Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province, College of Ocean and MeteorologyGuangdong Ocean UniversityZhanjiangChina
| | - Shiying He
- Key Laboratory of Environment Change and Resources use in Beibu Gulf, Ministry of EducationNanning Normal UniversityNanningChina
| | - Qingxiang Chen
- Laboratory for Coastal Ocean Variation and Disaster Prediction, Key Laboratory of Climate, Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province, College of Ocean and MeteorologyGuangdong Ocean UniversityZhanjiangChina
| | - Ke Dong
- Department of Biological SciencesKyonggi UniversitySuwon‐siGyeonggi‐doSouth Korea
| | - Nan Li
- Laboratory for Coastal Ocean Variation and Disaster Prediction, Key Laboratory of Climate, Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province, College of Ocean and MeteorologyGuangdong Ocean UniversityZhanjiangChina
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Rasal TA, Mallery CP, Brockley MW, Brown LC, Paczkowski JE, van Kessel JC. Ligand binding determines proteolytic stability of Vibrio LuxR/HapR quorum sensing transcription factors. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.15.580527. [PMID: 38405947 PMCID: PMC10888775 DOI: 10.1101/2024.02.15.580527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
In Vibrio species, quorum sensing signaling culminates in the production of a TetR-type master transcription factor collectively called the LuxR/HapR family, which regulates genes required for colonization and infection of host organisms. These proteins possess a solvent accessible putative ligand binding pocket. However, a native ligand has not been identified, and the role of ligand binding in LuxR/HapR function in Vibrionaceae is unknown. To probe the role of the ligand binding pocket, we utilize the small molecule thiophenesulfonamide inhibitor PTSP (3- p henyl-1-( t hiophen-2-yl s ulfonyl)-1 H - p yrazole) that we previously showed targets LuxR/HapR proteins. Amino acid conservation in the ligand binding pocket determines the specificity and efficacy of PTSP inhibition across Vibrio species. Here, we used structure-function analyses to identify PTSP-interacting residues in the ligand binding pocket of SmcR - the Vibrio vulnificus LuxR/HapR homolog - that are required for PTSP inhibition of SmcR activity in vivo . Forward genetic screening combined with X-ray crystallography structural determination of SmcR bound to PTSP identified substitutions at eight residues that were sufficient to reduce or eliminate PTSP-mediated SmcR inhibition. Small-angle X-ray scattering and computational modeling determined that PTSP drives allosteric unfolding at the N-terminal DNA binding domain. We discovered that SmcR is degraded by the ClpAP protease in the presence of PTSP in vivo ; substitution of key PTSP-interacting residues stabilized or increased SmcR levels in the cell. This mechanism of inhibition is observed for all thiophenesulfonamide compounds tested and against other Vibrio species. We conclude that thiophenesulfonamides specifically bind in the ligand binding pocket of LuxR/HapR proteins, promoting protein degradation and thereby suppressing downstream gene expression, implicating ligand binding as a mediator of LuxR/HapR protein stability and function to govern virulence gene expression in Vibrio pathogens. SIGNIFICANCE LuxR/HapR proteins were discovered in the 1990s as central regulators of quorum sensing gene expression and later discovered to be conserved in all studied Vibrio species. LuxR/HapR homologs regulate a wide range of genes involved in pathogenesis, including but not limited to genes involved in biofilm production and toxin secretion. As archetypal members of the broad class of TetR-type transcription factors, each LuxR/HapR protein has a predicted ligand binding pocket. However, no ligand has been identified for LuxR/HapR proteins that control their function as regulators. Here, we used LuxR/HapR-specific chemical inhibitors to determine that ligand binding drives proteolytic degradation in vivo , the first demonstration of LuxR/HapR function connected to ligand binding for this historical protein family.
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Kastner PD, Noell SE, Essig DA. Complete genome sequence of a winter season Vibrio facilitates discovery of a novel subclade of cold-adapted species in the albus clade. Microb Genom 2024; 10:001178. [PMID: 38230915 PMCID: PMC10868602 DOI: 10.1099/mgen.0.001178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 12/20/2023] [Indexed: 01/18/2024] Open
Abstract
In temperate marine climate zones, seasonal changes in water temperature contribute to distinct populations of warm- and cold-water vibrios. We report here the complete genome sequence (BUSCO score=94.8) of the novel strain Vibrio sp. VB16 isolated in late winter from the intertidal zone near Virginia Beach, Virginia, USA with the ability to form colonies at 4 °C. The 5.2 Mbp genome is composed of a large (3.6 Mbp) and small (1.6 Mbp) chromosome. Based on paired average nucleotide identity (ANI), average amino acid identity (AAI) and digital DNA-DNA hybridization (dDDH), V. sp. VB16 is the same species as V. sp. UBA2437 from a North Sea tidal flat and is closely related to V. sp. DW001 from Antarctic sea ice. Our phylogenomic and bioinformatic analyses placed VB16, UBA2437 and DW001 into a cold-tolerant subclade within the albus clade, along with two non-cold-tolerant subclades. Orthovenn analysis indicated that VB16 and its other albus clade members shared 1544 gene orthologue clusters, including clusters for biosynthesis of polar flagella and tight adhesion pili that predict multiple lifestyles, either free-living or as an opportunistic pathogen within a marine eukaryotic host. The cold-tolerant subclade shared 552 orthologue proteins, including genes known to promote survival in cold or freezing temperatures, such as the eicosapentaenoic acid biosynthetic gene cluster, syp exopolysaccharide gene cluster and novel giant proteins with ice-binding domains. This subclade represents a group of psychrotolerant or 'moderate psychrophile' winter season Vibrio species. The discovery of this subclade opens the door for experimental work on the physiological features, virulence potential and ecological importance of this subclade.
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Affiliation(s)
- Paul D. Kastner
- School of Medicine, Vanderbilt University, Nashville, TN, USA
| | - Stephen E. Noell
- Te Aka Mātuatua – School of Science, Thermophile Research Unit, Te Whare Wānanga o Waikato – University of Waikato, Hamilton, New Zealand
| | - David A. Essig
- Department of Biology, Geneva College, Beaver Falls, PA, USA
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9
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Brumfield KD, Usmani M, Santiago S, Singh K, Gangwar M, Hasan NA, Netherland M, Deliz K, Angelini C, Beatty NL, Huq A, Jutla AS, Colwell RR. Genomic diversity of Vibrio spp. and metagenomic analysis of pathogens in Florida Gulf coastal waters following Hurricane Ian. mBio 2023; 14:e0147623. [PMID: 37931127 PMCID: PMC10746180 DOI: 10.1128/mbio.01476-23] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 08/30/2023] [Indexed: 11/08/2023] Open
Abstract
IMPORTANCE Evidence suggests warming temperatures are associated with the spread of potentially pathogenic Vibrio spp. and the emergence of human disease globally. Following Hurricane Ian, the State of Florida reported a sharp increase in the number of reported Vibrio spp. infections and deaths. Hence, monitoring of pathogens, including vibrios, and environmental parameters influencing their occurrence is critical to public health. Here, DNA sequencing was used to investigate the genomic diversity of Vibrio parahaemolyticus and Vibrio vulnificus, both potential human pathogens, in Florida coastal waters post Hurricane Ian, in October 2022. Additionally, the microbial community of water samples was profiled to detect the presence of Vibrio spp. and other microorganisms (bacteria, fungi, protists, and viruses) present in the samples. Long-term environmental data analysis showed changes in environmental parameters during and after Ian were optimal for the growth of Vibrio spp. and related pathogens. Collectively, results will be used to develop predictive risk models during climate change.
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Affiliation(s)
- Kyle D. Brumfield
- Maryland Pathogen Research Institute, University of Maryland, College Park, Maryland, USA
- University of Maryland Institute for Advanced Computer Studies, University of Maryland, College Park, Maryland, USA
| | - Moiz Usmani
- Department of Environmental Engineering Sciences, Geohealth and Hydrology Laboratory, University of Florida, Gainesville, Florida, USA
| | - Sanneri Santiago
- Department of Environmental Engineering Sciences, Engineering School of Sustainable Infrastructure and Environment, University of Florida, Gainesville, Florida, USA
| | - Komalpreet Singh
- Department of Environmental Engineering Sciences, Geohealth and Hydrology Laboratory, University of Florida, Gainesville, Florida, USA
| | - Mayank Gangwar
- Department of Environmental Engineering Sciences, Geohealth and Hydrology Laboratory, University of Florida, Gainesville, Florida, USA
| | | | | | - Katherine Deliz
- Department of Environmental Engineering Sciences, Engineering School of Sustainable Infrastructure and Environment, University of Florida, Gainesville, Florida, USA
| | - Christine Angelini
- Department of Environmental Engineering Sciences, Engineering School of Sustainable Infrastructure and Environment, University of Florida, Gainesville, Florida, USA
| | - Norman L. Beatty
- Department of Medicine, Division of Infectious Diseases and Global Medicine, University of Florida, Gainesville, Florida, USA
| | - Anwar Huq
- Maryland Pathogen Research Institute, University of Maryland, College Park, Maryland, USA
| | - Antarpreet S. Jutla
- Department of Environmental Engineering Sciences, Geohealth and Hydrology Laboratory, University of Florida, Gainesville, Florida, USA
| | - Rita R. Colwell
- Maryland Pathogen Research Institute, University of Maryland, College Park, Maryland, USA
- University of Maryland Institute for Advanced Computer Studies, University of Maryland, College Park, Maryland, USA
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10
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Prioux C, Tignat-Perrier R, Gervais O, Estaque T, Schull Q, Reynaud S, Béraud E, Mérigot B, Beauvieux A, Marcus MI, Richaume J, Bianchimani O, Cheminée A, Allemand D, Ferrier-Pagès C. Unveiling microbiome changes in Mediterranean octocorals during the 2022 marine heatwaves: quantifying key bacterial symbionts and potential pathogens. MICROBIOME 2023; 11:271. [PMID: 38053218 PMCID: PMC10696765 DOI: 10.1186/s40168-023-01711-x] [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: 07/21/2023] [Accepted: 10/27/2023] [Indexed: 12/07/2023]
Abstract
BACKGROUND Climate change has accelerated the occurrence and severity of heatwaves in the Mediterranean Sea and poses a significant threat to the octocoral species that form the foundation of marine animal forests (MAFs). As coral health intricately relies on the symbiotic relationships established between corals and microbial communities, our goal was to gain a deeper understanding of the role of bacteria in the observed tissue loss of key octocoral species following the unprecedented heatwaves in 2022. RESULTS Using amplicon sequencing and taxon-specific qPCR analyses, we unexpectedly found that the absolute abundance of the major bacterial symbionts, Spirochaetaceae (C. rubrum) and Endozoicomonas (P. clavata), remained, in most cases, unchanged between colonies with 0% and 90% tissue loss. These results suggest that the impairment of coral health was not due to the loss of the main bacterial symbionts. However, we observed a significant increase in the total abundance of bacterial opportunists, including putative pathogens such as Vibrio, which was not evident when only their relative abundance was considered. In addition, there was no clear relation between bacterial symbiont loss and the intensity of thermal stress, suggesting that factors other than temperature may have influenced the differential response of octocoral microbiomes at different sampling sites. CONCLUSIONS Our results indicate that tissue loss in octocorals is not directly caused by the decline of the main bacterial symbionts but by the proliferation of opportunistic and pathogenic bacteria. Our findings thus underscore the significance of considering both relative and absolute quantification approaches when evaluating the impact of stressors on coral microbiome as the relative quantification does not accurately depict the actual changes in the microbiome. Consequently, this research enhances our comprehension of the intricate interplay between host organisms, their microbiomes, and environmental stressors, while offering valuable insights into the ecological implications of heatwaves on marine animal forests. Video Abstract.
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Affiliation(s)
- Camille Prioux
- Collège Doctoral, Sorbonne Université, Paris, France
- Unité de Recherche sur la Biologie des Coraux Précieux CSM - CHANEL, Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC-98000 Monaco, Principality of Monaco
- Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC 98000, Principality of Monaco
| | - Romie Tignat-Perrier
- Unité de Recherche sur la Biologie des Coraux Précieux CSM - CHANEL, Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC-98000 Monaco, Principality of Monaco
- Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC 98000, Principality of Monaco
| | - Ophélie Gervais
- Unité de Recherche sur la Biologie des Coraux Précieux CSM - CHANEL, Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC-98000 Monaco, Principality of Monaco
- Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC 98000, Principality of Monaco
| | - Tristan Estaque
- Septentrion Environnement, Campus Nature Provence, Marseille, 13008, France
| | - Quentin Schull
- MARBEC, Univ. Montpellier, CNRS, IFREMER, IRD, Sète, France
| | - Stéphanie Reynaud
- Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC 98000, Principality of Monaco
| | - Eric Béraud
- Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC 98000, Principality of Monaco
| | | | | | - Maria-Isabelle Marcus
- Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC 98000, Principality of Monaco
| | - Justine Richaume
- Septentrion Environnement, Campus Nature Provence, Marseille, 13008, France
| | | | - Adrien Cheminée
- Septentrion Environnement, Campus Nature Provence, Marseille, 13008, France
| | - Denis Allemand
- Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC 98000, Principality of Monaco
| | - Christine Ferrier-Pagès
- Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC 98000, Principality of Monaco.
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11
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Dinçtürk E, Öndes F, Leria L, Maldonado M. Mass mortality of the keratose sponge Sarcotragus foetidus in the Aegean Sea (Eastern Mediterranean) correlates with proliferation of Vibrio bacteria in the tissues. Front Microbiol 2023; 14:1272733. [PMID: 38107859 PMCID: PMC10722426 DOI: 10.3389/fmicb.2023.1272733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 10/12/2023] [Indexed: 12/19/2023] Open
Abstract
In the last two decades, episodes of mass mortality in benthic communities have often been associated with climatic anomalies, but the ultimate mechanisms through which they lead to death have rarely been identified. This study reports a mass mortality of wild sponges in the Aegean Sea (Turkey, Eastern Mediterranean), which affected the keratose demosponge Sarcotragus foetidus in September 2021. We examined the occurrence of thermo-dependent bacteria of the genus Vibrio in the sponges, identified through 16S rRNA of colonies isolated from sponge tissue in specific culturing media. Six Vibrio sequences were identified from the sponges, three of them being putatively pathogenic (V. fortis, V. owensii, V. gigantis). Importantly, those Vibrios were isolated from only tissues of diseased sponges. In contrast, healthy individuals sampled in both summer and winter led to no Vibrio growth in laboratory cultures. A 50 years record of sea surface temperature (SST) data for the study area reveals a progressive increase in temperature from 1970 to 2021, with values above 24°C from May to September 2021, reaching an absolute historical maximum of 28.9°C in August 2021. We hypothesize that such elevated SST values maintained for several months in 2021 promoted proliferation of pathogenic Vibrio species (thermo-dependent bacteria) in S. foetidus, triggering or aggravating the course of sponge disease. Thus, vibrioisis emerges as one of the putative mechanisms through which global water warming in the Mediterranean Sea translates into sponge mortality. The historical time course of temperature data for the studied area in the Aegean Sea predicts that recurrent waves of elevated SST are likely to occur in the coming summers. If so, recurrent disease may eventually eliminate this abundant sponge from the sublittoral in the midterm, altering the original bathymetric distribution of the species and compromising its ecological role.
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Affiliation(s)
- Ezgi Dinçtürk
- Fish Disease and Biotechnology Laboratory, Department of Aquaculture, Faculty of Fisheries, Izmir Katip Celebi University, Izmir, Türkiye
| | - Fikret Öndes
- Fisheries Laboratory, Department of Fisheries and Seafood Processing Technology, Faculty of Fisheries, Izmir Katip Celebi University, Izmir, Türkiye
- Department of Marine Sciences and Applied Biology, Faculty of Science, University of Alicante, Alicante, Spain
| | - Laia Leria
- Department of Aquatic Ecology, Centro de Estudios Avanzados de Blanes (CEAB-CSIC), Girona, Spain
| | - Manuel Maldonado
- Department of Aquatic Ecology, Centro de Estudios Avanzados de Blanes (CEAB-CSIC), Girona, Spain
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12
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Aly SM, Elatta MA, ElBanna NI, El-Shiekh MA, Mabrok M, Kelany MS, Fathi M. Comprehensive analysis of Vibrio alginolyticus: Environmental risk factors in the cultured Gilthead seabream (Sparus aurata) under seasonal fluctuations and water parameter alterations. JOURNAL OF FISH DISEASES 2023; 46:1425-1437. [PMID: 37705253 DOI: 10.1111/jfd.13860] [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: 08/07/2023] [Revised: 08/23/2023] [Accepted: 08/26/2023] [Indexed: 09/15/2023]
Abstract
This study aimed to investigate the relationship between seasonal variations, water parameters and the prevalence of Vibriosis in Gilthead seabream. A total of 160 Gilthead seabream fish were sampled over the course of 1 year from private earthen pond farms in the Suez Canal area and examined for abnormalities and internal lesions. Vibrio alginolyticus, the causative agent of Vibriosis, was isolated and characterized from the sampled Gilthead seabream fish. The study revealed a significant correlation between different seasons and the prevalence of V. alginolyticus, with lower occurrence during autumn. Analysis of water parameters showed that toxic ammonia concentration was not effective in distinguishing between positive and negative cases of V. alginolyticus. Dissolved oxygen showed weak predictive ability for the occurrence of V. alginolyticus, while temperature demonstrated moderate potential as a predictor of its prevalence. pH values, organic matter concentrations and salinity showed no significant association with the occurrence of V. alginolyticus. Experimental challenges highlighted the vulnerability of Gilthead seabream to V. alginolyticus and emphasized the impact of environmental factors, such as pH and toxic ammonia, on their mortality and survival. The study emphasizes the importance of considering seasonal changes and water quality parameters in managing V. alginolyticus in mariculture. It underscores the need for careful monitoring and control of environmental factors to ensure the health and well-being of cultured fish populations. The findings contribute to our understanding of Vibriosis management and provide valuable insights for developing effective strategies in the aquaculture industry.
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Affiliation(s)
- Salah M Aly
- Department of Pathology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
| | - Mohamed A Elatta
- Department of Fish Health, Central Laboratory for Aquaculture Research, Sharkia, Egypt
| | - Noha I ElBanna
- Department of Aquaculture Diseases Control, Fish Farming and Technology Institute, Ismailia, Egypt
| | | | - Mahmoud Mabrok
- Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
| | - Mahmoud S Kelany
- National Institute of Oceanography and Fisheries (NIOF), Cairo, Egypt
| | - Mohamed Fathi
- National Institute of Oceanography and Fisheries (NIOF), Cairo, Egypt
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13
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Doni L, Tassistro G, Oliveri C, Balbi T, Auguste M, Pallavicini A, Canesi L, Pruzzo C, Vezzulli L. Plankton and marine aggregates as transmission vectors for V. aestuarianus 02/041 infecting the pacific oyster Crassostrea gigas. ENVIRONMENTAL MICROBIOLOGY REPORTS 2023; 15:631-641. [PMID: 37776112 PMCID: PMC10667632 DOI: 10.1111/1758-2229.13206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 09/17/2023] [Indexed: 10/01/2023]
Abstract
Vibrio aestuarianus is a bacterium related to mass mortality outbreaks of the Pacific oyster, Crassostrea gigas in Europe. In this study, the role of different planktonic substrates (phytoplankton cells, marine aggregates and chitin fragments) in mediating V. aestuarianus 02/041 infection of oysters was evaluated by controlled infection experiments. It was shown that phytoplankton cells and, to a greater extent, marine aggregates, significantly promote V. aestuarianus 02/041 intake by C. gigas maintained under stressful conditions in the laboratory. Such intake is associated with higher concentration of the pathogen in the bivalve hemolymph and compromised health status of infected oysters. In contrast, chitin particles do not play a significant role as transmission vector for V. aestuarianus 02/041 infecting its bivalve host. Interestingly, incorporation into marine aggregates foster extracellular proteases (ECPs) activity and a higher expression of bacterial virulence genes, that are potentially involved in bivalve infection. Results from this study contribute to elucidate transmission patterns of V. aestuarianus 02/041 to C. gigas that may be useful for the development of efficient measures to prevent and control oyster disease outbreaks.
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Affiliation(s)
- Lapo Doni
- Department of Earth, Environmental and Life Sciences (DISTAV)University of GenoaGenoaItaly
| | - Giovanni Tassistro
- Department of Earth, Environmental and Life Sciences (DISTAV)University of GenoaGenoaItaly
| | - Caterina Oliveri
- Department of Earth, Environmental and Life Sciences (DISTAV)University of GenoaGenoaItaly
| | - Teresa Balbi
- Department of Earth, Environmental and Life Sciences (DISTAV)University of GenoaGenoaItaly
- National Biodiversity Future CenterPalermoItaly
| | - Manon Auguste
- Department of Earth, Environmental and Life Sciences (DISTAV)University of GenoaGenoaItaly
| | - Alberto Pallavicini
- Department of Life SciencesUniversity of TriesteTriesteItaly
- Stazione Zoologica Anton DohrnNapoliItaly
| | - Laura Canesi
- Department of Earth, Environmental and Life Sciences (DISTAV)University of GenoaGenoaItaly
- National Biodiversity Future CenterPalermoItaly
| | - Carla Pruzzo
- Department of Earth, Environmental and Life Sciences (DISTAV)University of GenoaGenoaItaly
| | - Luigi Vezzulli
- Department of Earth, Environmental and Life Sciences (DISTAV)University of GenoaGenoaItaly
- National Biodiversity Future CenterPalermoItaly
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14
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Zhao W, Chen X, Liu R, Tian P, Niu W, Zhang XH, Liu J, Wang X. Distinct coral environments shape the dynamic of planktonic Vibrio spp. ENVIRONMENTAL MICROBIOME 2023; 18:77. [PMID: 37872593 PMCID: PMC10594878 DOI: 10.1186/s40793-023-00532-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 10/04/2023] [Indexed: 10/25/2023]
Abstract
BACKGROUND Coral reefs are one of the most biodiverse and productive ecosystems, providing habitat for a vast of species. Reef-building scleractinian corals with a symbiotic microbiome, including bacteria, archaea, viruses and eukaryotic microbes, are referred to coral holobionts. Among them, coral diseases, mainly caused by Vibrio spp., have significantly contributed to the loss of coral cover and diversity. Habitat filtering across the globe has led to a variety structure of marine bacterial communities. Coral species, quantity and characteristics are significant differences between the Xisha Islands and Daya Bay (Guangdong Province). Thus, the Vibrio communities may be distinct between coral rich and poor areas. RESULTS Through comparison of Vibrio dynamics between coral-rich (Xisha Islands) and coral-poor (Daya Bay) locations, we uncovered differences in Vibrio abundance, diversity, community composition and assembly mechanisms associated with corals. The higher abundance of Vibrio in coral rich areas may indicate a strong interaction between vibrios and corals. V. campbellii, Paraphotobacterium marinum and V. caribbeanicus were widely distributed in both coral rich and poor areas, likely indicating weak species specificity in the coral-stimulated growth of Vibrio. Random-forest prediction revealed Vibrio species and Photobacterium species as potential microbial indicators in the coral rich and coral poor areas, respectively. Ecological drift rather than selection governed the Vibrio community assembly in the Xisha Islands. Comparatively, homogenizing selection was more important for the Daya Bay community, which may reflect a role of habitat filtration. CONCLUSION This study revealed the different distribution pattern and assembly mechanism of Vibrio spp. between coral rich and poor areas, providing the background data for the research of Vibrio community in coral reef areas and may help the protection of coral reef at the biological level. The main reasons for the difference were different number and species of corals, environmental (e.g., temperature) and spatial factors. It reflected the strong interaction between Vibrio and corals, and provided a new perspective for the investigation of Vibrio in coral reef ecosystem.
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Affiliation(s)
- Wenbin Zhao
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
- Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266100, China
| | - Xing Chen
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
- Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266100, China
| | - Ronghua Liu
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
- Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266100, China
| | - Peng Tian
- Laboratory of Marine Biodiversity Research, Third Institute of Oceanography, Ministry of Natural Resources, 178 Daxue Road, Xiamen, 361005, China
- Nansha Islands Coral Reef Ecosystem National Observation and Research Station, Guangzhou, 510000, China
| | - Wentao Niu
- Laboratory of Marine Biodiversity Research, Third Institute of Oceanography, Ministry of Natural Resources, 178 Daxue Road, Xiamen, 361005, China
- Nansha Islands Coral Reef Ecosystem National Observation and Research Station, Guangzhou, 510000, China
| | - Xiao-Hua Zhang
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
- Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266100, China
| | - Jiwen Liu
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China.
- Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266100, China.
| | - Xiaolei Wang
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China.
- Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266100, China.
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15
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Zhu S, Wang X, Zhao W, Zhang Y, Song D, Cheng H, Zhang XH. Vertical dynamics of free-living and particle-associated vibrio communities in the eastern tropical Indian Ocean. Front Microbiol 2023; 14:1285670. [PMID: 37928659 PMCID: PMC10620696 DOI: 10.3389/fmicb.2023.1285670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 09/19/2023] [Indexed: 11/07/2023] Open
Abstract
Members of the family Vibrionaceae (vibrios) are widely distributed in estuarine, offshore, and marginal seas and perform an important ecological role in the marine organic carbon cycle. Nevertheless, there is little knowledge about whether vibrios play ecological roles in the oligotrophic pelagic area, which occupies a larger water volume. In this study, we investigated the abundance, diversity, and composition of free-living and particle-associated vibrios and their relationships with environmental factors along the water depth in the eastern tropical Indian Ocean (ETIO). The abundance of vibrios in free-living fractions was significantly higher than that of particle-associated fractions on the surface. Still, both were similar at the bottom, indicating that vibrios may shift from free-living lifestyles on the surface to mixed lifestyles at the bottom. Vibrio-specific 16S rRNA gene amplicon sequencing revealed that Paraphotobacterium marinum and Vibrio rotiferianus were dominant species in the water column, and Vibrio parahaemolyticus (a clinically important pathogen) was recorded in 102 samples of 111 seawater samples in 10 sites, which showed significant difference from the marginal seas. The community composition also shifted, corresponding to different depths in the water column. Paraphotobacterium marinum decreased with depth, and V. rotiferianus OTU1528 was mainly distributed in deeper water, which significantly correlated with the alteration of environmental factors (e.g., temperature, salinity, and dissolved oxygen). In addition to temperature and salinity, dissolved oxygen (DO) was an important factor that affected the composition and abundance of Vibrio communities in the ETIO. Our study revealed the vertical dynamics and preferential lifestyles of vibrios in the ETIO, helping to fill a knowledge gap on their ecological distribution in oligotrophic pelagic areas and fully understanding the response of vibrios in a global warming environment.
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Affiliation(s)
- Shaodong Zhu
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, and College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Xiaolei Wang
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, and College of Marine Life Sciences, Ocean University of China, Qingdao, China
- Laboratory for Marine Ecology and Environmental Science, Laoshan Laboratory, Qingdao, China
| | - Wenbin Zhao
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, and College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Yulin Zhang
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, and College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Derui Song
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, and College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Haojin Cheng
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, and College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Xiao-Hua Zhang
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, and College of Marine Life Sciences, Ocean University of China, Qingdao, China
- Laboratory for Marine Ecology and Environmental Science, Laoshan Laboratory, Qingdao, China
- Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, China
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16
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Waidner LA, Potdukhe TV. Tools to Enumerate and Predict Distribution Patterns of Environmental Vibrio vulnificus and Vibrio parahaemolyticus. Microorganisms 2023; 11:2502. [PMID: 37894160 PMCID: PMC10609196 DOI: 10.3390/microorganisms11102502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 09/28/2023] [Accepted: 10/03/2023] [Indexed: 10/29/2023] Open
Abstract
Vibrio vulnificus (Vv) and Vibrio parahaemolyticus (Vp) are water- and foodborne bacteria that can cause several distinct human diseases, collectively called vibriosis. The success of oyster aquaculture is negatively impacted by high Vibrio abundances. Myriad environmental factors affect the distribution of pathogenic Vibrio, including temperature, salinity, eutrophication, extreme weather events, and plankton loads, including harmful algal blooms. In this paper, we synthesize the current understanding of ecological drivers of Vv and Vp and provide a summary of various tools used to enumerate Vv and Vp in a variety of environments and environmental samples. We also highlight the limitations and benefits of each of the measurement tools and propose example alternative tools for more specific enumeration of pathogenic Vv and Vp. Improvement of molecular methods can tighten better predictive models that are potentially important for mitigation in more controlled environments such as aquaculture.
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Affiliation(s)
- Lisa A. Waidner
- Hal Marcus College of Science and Engineering, University of West Florida, 11000 University Pkwy, Building 58, Room 108, Pensacola, FL 32514, USA
| | - Trupti V. Potdukhe
- GEMS Program, College of Medicine, University of Illinois Chicago, 1853 W. Polk St., Chicago, IL 60612, USA;
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17
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Oyanedel D, Lagorce A, Bruto M, Haffner P, Morot A, Labreuche Y, Dorant Y, de La Forest Divonne S, Delavat F, Inguimbert N, Montagnani C, Morga B, Toulza E, Chaparro C, Escoubas JM, Gueguen Y, Vidal-Dupiol J, de Lorgeril J, Petton B, Degremont L, Tourbiez D, Pimparé LL, Leroy M, Romatif O, Pouzadoux J, Mitta G, Le Roux F, Charrière GM, Travers MA, Destoumieux-Garzón D. Cooperation and cheating orchestrate Vibrio assemblages and polymicrobial synergy in oysters infected with OsHV-1 virus. Proc Natl Acad Sci U S A 2023; 120:e2305195120. [PMID: 37751557 PMCID: PMC10556616 DOI: 10.1073/pnas.2305195120] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 08/10/2023] [Indexed: 09/28/2023] Open
Abstract
Polymicrobial infections threaten the health of humans and animals but remain understudied in natural systems. We recently described the Pacific Oyster Mortality Syndrome (POMS), a polymicrobial disease affecting oyster production worldwide. In the French Atlantic coast, the disease involves coinfection with ostreid herpesvirus 1 (OsHV-1) and virulent Vibrio. However, it is unknown whether consistent Vibrio populations are associated with POMS in different regions, how Vibrio contribute to POMS, and how they interact with OsHV-1 during pathogenesis. By connecting field-based approaches in a Mediterranean ecosystem, laboratory infection assays and functional genomics, we uncovered a web of interdependencies that shape the structure and function of the POMS pathobiota. We show that Vibrio harveyi and Vibrio rotiferianus are predominant in OsHV-1-diseased oysters and that OsHV-1 drives the partition of the Vibrio community observed in the field. However only V. harveyi synergizes with OsHV-1 by promoting mutual growth and accelerating oyster death. V. harveyi shows high-virulence potential and dampens oyster cellular defenses through a type 3 secretion system, making oysters a more favorable niche for microbe colonization. In addition, V. harveyi produces a key siderophore called vibrioferrin. This important resource promotes the growth of V. rotiferianus, which cooccurs with V. harveyi in diseased oysters, and behaves as a cheater by benefiting from V. harveyi metabolite sharing. Our data show that cooperative behaviors contribute to synergy between bacterial and viral coinfecting partners. Additional cheating behaviors further shape the polymicrobial consortium. Controlling cooperative behaviors or countering their effects opens avenues for mitigating polymicrobial diseases.
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Affiliation(s)
- Daniel Oyanedel
- Interactions Hôtes Pathogènes Environnements (IHPE), Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, MontpellierF-34090, France
| | - Arnaud Lagorce
- Interactions Hôtes Pathogènes Environnements (IHPE), Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, MontpellierF-34090, France
| | - Maxime Bruto
- Ifremer, Unité Physiologie Fonctionnelle des Organismes Marins, ZI de la Pointe du Diable, PlouzanéF-29280, France
- Sorbonne Université, Université Pierre et Marie Curie Paris 06, CNRS, UMR8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, RoscoffF-29680, France
| | - Philippe Haffner
- Interactions Hôtes Pathogènes Environnements (IHPE), Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, MontpellierF-34090, France
| | - Amandine Morot
- Université de Bretagne Occidentale, CNRS, Institut de recherche pour le développement (IRD), Ifremer, Laboratoire des sciences de l'environnement marin (LEMAR), Plouzané,F-29280, France
- Laboratoire de Biotechnologie et Chimie Marines, Université Bretagne Sud, EMR CNRS 6076, Institut Universitaire Européen de la Mer, LorientF-56100, France
| | - Yannick Labreuche
- Ifremer, Unité Physiologie Fonctionnelle des Organismes Marins, ZI de la Pointe du Diable, PlouzanéF-29280, France
- Sorbonne Université, Université Pierre et Marie Curie Paris 06, CNRS, UMR8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, RoscoffF-29680, France
| | - Yann Dorant
- Interactions Hôtes Pathogènes Environnements (IHPE), Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, MontpellierF-34090, France
| | - Sébastien de La Forest Divonne
- Interactions Hôtes Pathogènes Environnements (IHPE), Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, MontpellierF-34090, France
| | - François Delavat
- Nantes Université, CNRS, Unité en Sciences Biologiques et Biotechnologies (US2B), UMR6286, Nantes,F-44000, France
| | - Nicolas Inguimbert
- Centre de Recherches Insulaires et OBservatoire de l’Environnement (CRIOBE), UAR3278, Ecole Pratique des Hautes Etudes (EPHE), Université de Perpignan Via Domitia, CNRS, PerpignanF-66860, France
| | - Caroline Montagnani
- Interactions Hôtes Pathogènes Environnements (IHPE), Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, MontpellierF-34090, France
| | - Benjamin Morga
- Ifremer, Adaptation Santé des invertébrés Marins (ASIM), La TrembladeF-17390, France
| | - Eve Toulza
- Interactions Hôtes Pathogènes Environnements (IHPE), Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, MontpellierF-34090, France
| | - Cristian Chaparro
- Interactions Hôtes Pathogènes Environnements (IHPE), Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, MontpellierF-34090, France
| | - Jean-Michel Escoubas
- Interactions Hôtes Pathogènes Environnements (IHPE), Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, MontpellierF-34090, France
| | - Yannick Gueguen
- Interactions Hôtes Pathogènes Environnements (IHPE), Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, MontpellierF-34090, France
- MARine Biodiversity, Exploitation and Conservation (MARBEC) Univ Montpellier, CNRS, Ifremer, IRD, SèteF-34200, France
| | - Jeremie Vidal-Dupiol
- Interactions Hôtes Pathogènes Environnements (IHPE), Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, MontpellierF-34090, France
| | - Julien de Lorgeril
- Interactions Hôtes Pathogènes Environnements (IHPE), Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, MontpellierF-34090, France
- Ifremer, IRD, Univ Nouvelle-Calédonie, Univ La Réunion, ENTROPIE, Nouméa, Nouvelle-Calédonie,F-98800, France
| | - Bruno Petton
- Ifremer, Unité Physiologie Fonctionnelle des Organismes Marins, ZI de la Pointe du Diable, PlouzanéF-29280, France
- Université de Bretagne Occidentale, CNRS, Institut de recherche pour le développement (IRD), Ifremer, Laboratoire des sciences de l'environnement marin (LEMAR), Plouzané,F-29280, France
| | - Lionel Degremont
- Ifremer, Adaptation Santé des invertébrés Marins (ASIM), La TrembladeF-17390, France
| | - Delphine Tourbiez
- Ifremer, Adaptation Santé des invertébrés Marins (ASIM), La TrembladeF-17390, France
| | - Léa-Lou Pimparé
- Interactions Hôtes Pathogènes Environnements (IHPE), Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, MontpellierF-34090, France
| | - Marc Leroy
- Interactions Hôtes Pathogènes Environnements (IHPE), Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, MontpellierF-34090, France
| | - Océane Romatif
- Interactions Hôtes Pathogènes Environnements (IHPE), Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, MontpellierF-34090, France
| | - Juliette Pouzadoux
- Interactions Hôtes Pathogènes Environnements (IHPE), Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, MontpellierF-34090, France
| | - Guillaume Mitta
- Interactions Hôtes Pathogènes Environnements (IHPE), Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, MontpellierF-34090, France
- Ifremer, Université de Polynésie Française, IRD, Institut Louis Malardé (ILM), Ecosystèmes Insulaires Océaniens (EIO), VairaoF-98719, Polynésie Française
| | - Frédérique Le Roux
- Ifremer, Unité Physiologie Fonctionnelle des Organismes Marins, ZI de la Pointe du Diable, PlouzanéF-29280, France
- Sorbonne Université, Université Pierre et Marie Curie Paris 06, CNRS, UMR8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, RoscoffF-29680, France
| | - Guillaume M. Charrière
- Interactions Hôtes Pathogènes Environnements (IHPE), Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, MontpellierF-34090, France
| | - Marie-Agnès Travers
- Interactions Hôtes Pathogènes Environnements (IHPE), Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, MontpellierF-34090, France
| | - Delphine Destoumieux-Garzón
- Interactions Hôtes Pathogènes Environnements (IHPE), Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, MontpellierF-34090, France
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18
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Elsherbini J, Corzett C, Ravaglioli C, Tamburello L, Polz M, Bulleri F. Epilithic Bacterial Assemblages on Subtidal Rocky Reefs: Variation Among Alternative Habitats at Ambient and Enhanced Nutrient Levels. MICROBIAL ECOLOGY 2023; 86:1552-1564. [PMID: 36790500 PMCID: PMC10497455 DOI: 10.1007/s00248-023-02174-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 01/13/2023] [Indexed: 06/18/2023]
Abstract
Temperate rocky reefs often support mosaics of alternative habitats such as macroalgal forests, algal turfs and sea urchin barrens. Although the composition of epilithic microbial biofilms (EMBs) is recognized as a major determinant of macroalgal recruitment, their role in regulating the stability of alternative habitats on temperate rocky reefs remains unexplored. On shallow rocky reefs of the Island of Capraia (NW Mediterranean), we compared EMB structure among canopy stands formed by the fucoid Ericaria brachycarpa, algal turfs, and urchin barrens under ambient versus experimentally enhanced nutrient levels. The three habitats shared a core microbial community consisting of 21.6 and 25.3% of total ASVs under ambient and enhanced nutrient conditions, respectively. Although Gammaproteobacteria, Alphaproteobacteria and Flavobacteriia were the most abundant classes across habitats, multivariate analyses at the ASV level showed marked differences in EMB composition among habitats. Enhancing nutrient level had no significant effect on EMBs, although it increased their similarity between macroalgal canopy and turf habitats. At both ambient and enriched nutrient levels, ASVs mostly belonging to Proteobacteria and Bacteroidetes were more abundant in EMBs from macroalgal canopies than barrens. In contrast, ASVs belonging to the phylum of Proteobacteria and, in particular, to the families of Rhodobacteraceae and Flavobacteriaceae at ambient nutrient levels and of Rhodobacteraceae and Bacteriovoracaceae at enhanced nutrient levels were more abundant in turf than canopy habitats. Our results show that primary surfaces from alternative habitats that form mosaics on shallow rocky reefs in oligotrophic areas host distinct microbial communities that are, to some extent, resistant to moderate nutrient enhancement. Understanding the role of EMBs in generating reinforcing feedback under different nutrient loading regimes appears crucial to advance our understanding of the mechanisms underpinning the stability of habitats alternative to macroalgal forests as well as their role in regulating reverse shifts.
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Affiliation(s)
- Joseph Elsherbini
- MIT Microbiology Graduate Program, Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02138, USA
| | - Christopher Corzett
- Molecular and Computational Biology Section, Department of Biological Sciences, University of Southern California, Los Angeles, CA, 90089, USA
| | - Chiara Ravaglioli
- Dipartimento di Biologia, Università di Pisa, CoNISMa, Via Derna 1, 56126, Pisa, Italy
| | - Laura Tamburello
- Department of Integrative Marine Ecology, Ischia Marine Centre, Stazione Zoologica Anton Dohrn, 80077, Punta San Pietro, Ischia, (Naples), Italy
| | - Martin Polz
- MIT Microbiology Graduate Program, Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02138, USA
- Centre for Microbiology and Environmental Systems Science, Djerassiplatz 1, 1130, Vienna, Austria
| | - Fabio Bulleri
- Dipartimento di Biologia, Università di Pisa, CoNISMa, Via Derna 1, 56126, Pisa, Italy.
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19
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Lo LSH, Liu X, Liu H, Shao M, Qian PY, Cheng J. Aquaculture bacterial pathogen database: Pathogen monitoring and screening in coastal waters using environmental DNA. WATER RESEARCH X 2023; 20:100194. [PMID: 37637860 PMCID: PMC10448209 DOI: 10.1016/j.wroa.2023.100194] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 08/02/2023] [Accepted: 08/07/2023] [Indexed: 08/29/2023]
Abstract
Increasingly diverse pathogen occurrence in coastal and mariculture areas demands improved monitoring platforms to prevent economic and public health implications. Accessible databases with up-to-date knowledge and taxonomy are critical for detecting and screening environmental pathogens. Condensed from over 3000 relevant reports in peer reviewed articles, we constructed an aquaculture bacterial pathogen database that provides specialized curation of over 210 bacterial pathogenic species impacting aquaculture. Application of the aquaculture bacterial pathogen database to environmental DNA metabarcoding monitoring data in Hong Kong coastal and mariculture waters effectively characterized regional pathogen profiles over a one-year period and improved identification of new potential pathogen targets. The results highlighted the increase in potential pathogen abundance related to aquaculture activity and the associated inorganic nitrogen load, which was chiefly due to the enrichment of Vibrio during the atypical dry winter season. The value of the aquaculture bacterial pathogen database for empowering environmental DNA-based approaches in coastal marine pathogen surveillance benefits water resource management and aquaculture development on a global scale.
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Affiliation(s)
- Linus Shing Him Lo
- Department of Science and Environmental Studies and State Key Laboratory of Marine Pollution, The Education University of Hong Kong, New Territories, Hong Kong, China
- The Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Xuan Liu
- The Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
- Department of Ocean Science, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Hongbin Liu
- The Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
- Department of Ocean Science, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Minhua Shao
- Department of Ocean Science, The Hong Kong University of Science and Technology, Hong Kong, China
- Department of Chemical and Biological Engineering and Energy Institute, The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China
| | - Pei-Yuan Qian
- The Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
- Department of Ocean Science, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Jinping Cheng
- Department of Science and Environmental Studies and State Key Laboratory of Marine Pollution, The Education University of Hong Kong, New Territories, Hong Kong, China
- The Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
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20
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Hirshfeld B, Lavelle K, Lee KY, Atwill ER, Kiang D, Bolkenov B, Gaa M, Li Z, Yu A, Li X, Yang X. Prevalence and antimicrobial resistance profiles of Vibrio spp. and Enterococcus spp. in retail shrimp in Northern California. Front Microbiol 2023; 14:1192769. [PMID: 37455729 PMCID: PMC10338826 DOI: 10.3389/fmicb.2023.1192769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 06/08/2023] [Indexed: 07/18/2023] Open
Abstract
Shrimp is one of the most consumed seafood products globally. Antimicrobial drugs play an integral role in disease mitigation in aquaculture settings, but their prevalent use raises public health concerns on the emergence and spread of antimicrobial resistant microorganisms. Vibrio spp., as the most common causative agents of seafood-borne infections in humans, and Enterococcus spp., as an indicator organism, are focal bacteria of interest for the monitoring of antimicrobial resistance (AMR) in seafood. In this study, 400 samples of retail shrimp were collected from randomly selected grocery stores in the Greater Sacramento, California, area between September 2019 and June 2020. The prevalence of Vibrio spp. and Enterococcus spp. was 60.25% (241/400) and 89.75% (359/400), respectively. Subsamples of Vibrio (n = 110) and Enterococcus (n = 110) isolates were subjected to antimicrobial susceptibility testing (AST). Vibrio isolates had high phenotypic resistance to ampicillin (52/110, 47.27%) and cefoxitin (39/110, 35.45%). Enterococcus were most frequently resistant to lincomycin (106/110, 96.36%), quinupristin-dalfopristin (96/110, 87.27%), ciprofloxacin (93/110, 84.55%), linezolid (86/110, 78.18%), and erythromycin (58/110, 52.73%). For both Vibrio and Enterococcus, no significant associations were observed between multidrug resistance (MDR, resistance to ≥3 drug classes) in isolates from farm raised and wild caught shrimp (p > 0.05) and in isolates of domestic and imported origin (p > 0.05). Whole genome sequencing (WGS) of a subset of Vibrio isolates (n = 42) speciated isolates as primarily V. metschnikovii (24/42; 57.14%) and V. parahaemolyticus (12/42; 28.57%), and detected 27 unique antimicrobial resistance genes (ARGs) across these isolates, most commonly qnrVC6 (19.05%, 8/42), dfrA31 (11.90%, 5/42), dfrA6 (9.5%, 4/42), qnrVC1 (9.5%, 4/42). Additionally, WGS predicted phenotypic resistance in Vibrio isolates with an overall sensitivity of 11.54% and specificity of 96.05%. This study provides insights on the prevalence and distribution of AMR in Vibrio spp. and Enterococcus spp. from retail shrimp in California which are important for food safety and public health and exemplifies the value of surveillance in monitoring the spread of AMR and its genetic determinants.
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Affiliation(s)
- Brady Hirshfeld
- Department of Animal Science, University of California, Davis, Davis, CA, United States
| | - Kurtis Lavelle
- Western Institute for Food Safety and Security, University of California, Davis, Davis, CA, United States
| | - Katie Yen Lee
- Western Institute for Food Safety and Security, University of California, Davis, Davis, CA, United States
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
| | - Edward Robert Atwill
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
| | - David Kiang
- California Department of Public Health, Richmond, CA, United States
| | - Bakytzhan Bolkenov
- Department of Animal Science, University of California, Davis, Davis, CA, United States
| | - Megan Gaa
- Western Institute for Food Safety and Security, University of California, Davis, Davis, CA, United States
| | - Zhirong Li
- California Department of Public Health, Richmond, CA, United States
| | - Alice Yu
- California Department of Public Health, Richmond, CA, United States
| | - Xunde Li
- Western Institute for Food Safety and Security, University of California, Davis, Davis, CA, United States
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
| | - Xiang Yang
- Department of Animal Science, University of California, Davis, Davis, CA, United States
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21
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Velez KEC, Leighton RE, Decho AW, Pinckney JL, Norman RS. Modeling pH and Temperature Effects as Climatic Hazards in V ibrio Vulnificus and Vibrio Parahaemolyticus Planktonic Growth and Biofilm Formation. GEOHEALTH 2023; 7:e2022GH000769. [PMID: 37091291 PMCID: PMC10114089 DOI: 10.1029/2022gh000769] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 04/06/2023] [Accepted: 04/08/2023] [Indexed: 05/03/2023]
Abstract
Climate-induced stressors, such as changes in temperature, salinity, and pH, contribute to the emergence of infectious diseases. These changes alter geographical constraint, resulting in increased Vibrio spread, exposure, and infection rates, thus facilitating greater Vibrio-human interactions. Multiple efforts have been developed to predict Vibrio exposure and raise awareness of health risks, but most models only use temperature and salinity as prediction factors. This study aimed to better understand the potential effects of temperature and pH on V. vulnificus and V. parahaemolyticus planktonic and biofilm growth. Vibrio strains were grown in triplicate at 25°, 30°, and 37°C in 96 well plates containing Modified Seawater Yeast Extract modified with CaCl2 at pH's ranging from 5 to 9.6. AMiGA software was used to model growth curves using Gaussian process regression. The effects of temperature and pH were evaluated using randomized complete block analysis of variance, and the growth rates of V. parahaemolyticus and V. vulnificus were modeled using the interpolation fit on the MatLab Curve Fitting Toolbox. Different optimal conditions involving temperature and pH were observed for planktonic and biofilm Vibrio growth within- and between-species. This study showed that temperature and pH factors significantly affect Vibrio planktonic growth rates and V. parahaemolyticus biofilm formation. Therefore, pH effects must be added to the Vibrio growth modeling efforts to better predict Vibrio risk in estuarine and coastal zones that can potentially experience the cooccurrence of Vibrio and harmful algal bloom outbreak events.
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Affiliation(s)
- K. E. Correa Velez
- Department of Environmental Health SciencesUniversity of South CarolinaSCColumbiaUSA
- NIEHS Center for Oceans and Human Health and Climate Change InteractionsUniversity of South CarolinaSCColumbiaUSA
| | - R. E. Leighton
- Department of Environmental Health SciencesUniversity of South CarolinaSCColumbiaUSA
- NIEHS Center for Oceans and Human Health and Climate Change InteractionsUniversity of South CarolinaSCColumbiaUSA
| | - A. W. Decho
- Department of Environmental Health SciencesUniversity of South CarolinaSCColumbiaUSA
- NIEHS Center for Oceans and Human Health and Climate Change InteractionsUniversity of South CarolinaSCColumbiaUSA
| | - J. L. Pinckney
- Department of Biological SciencesUniversity of South CarolinaSCColumbiaUSA
- School of the Earth, Ocean and EnvironmentUniversity of South CarolinaSCColumbiaUSA
| | - R. S. Norman
- Department of Environmental Health SciencesUniversity of South CarolinaSCColumbiaUSA
- NIEHS Center for Oceans and Human Health and Climate Change InteractionsUniversity of South CarolinaSCColumbiaUSA
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22
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Kiran R, Yadav R, Sathe D, Patil SA. Halophilic CO 2-fixing microbial community as biocatalyst improves the energy efficiency of the microbial electrosynthesis process. BIORESOURCE TECHNOLOGY 2023; 371:128637. [PMID: 36669625 DOI: 10.1016/j.biortech.2023.128637] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/12/2023] [Accepted: 01/15/2023] [Indexed: 06/17/2023]
Abstract
Using saline electrolytes in combination with halophilic CO2-fixing lithotrophic microbial catalysts has been envisioned as a promising strategy to develop an energy-efficient microbial electrosynthesis (MES) process for CO2 utilization. Here, an enriched marine CO2-fixing lithotrophic microbial community dominated by Vibrio and Clostridium spp. was tested for MES of organic acids from CO2. At an applied Ecathode of -1V (vs Ag/AgCl) with 3.5 % salinity (78 mScm-1), it produced 379 ± 53 mg/L (6.31 ± 0.89 mM) acetic acid and 187 ± 43 mg/L (4.05 ± 0.94 mM) formic acid at 2.1 ± 0.30 and 1.35 ± 0.31 mM day-1, respectively production rates. Most electrons were recovered in acetate (68.3 ± 3 %), formate (9.6 ± 1.2 %) besides hydrogen (11 ± 1.4 %) and biomass (8.9 ± 1.65 %). Notably, the bioproduction of organic acids occurred at a high energetic efficiency (EE) of ∼ 46 % and low Ecell of 2.3 V in saline conditions compared to the commonly used non-saline electrolytes (0.5-1 mScm-1) in the reported MES studies with CO2 (Ecell: >2.5 V and EE: <34 %).
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Affiliation(s)
- Rashmi Kiran
- Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research Mohali (IISER Mohali), Knowledge City, Sector 81, SAS Nagar 140306, Punjab, India
| | - Ravineet Yadav
- Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research Mohali (IISER Mohali), Knowledge City, Sector 81, SAS Nagar 140306, Punjab, India
| | - Devangi Sathe
- Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research Mohali (IISER Mohali), Knowledge City, Sector 81, SAS Nagar 140306, Punjab, India
| | - Sunil A Patil
- Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research Mohali (IISER Mohali), Knowledge City, Sector 81, SAS Nagar 140306, Punjab, India.
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23
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Doni L, Oliveri C, Lasa A, Di Cesare A, Petrin S, Martinez-Urtaza J, Coman F, Richardson A, Vezzulli L. Large-scale impact of the 2016 Marine Heatwave on the plankton-associated microbial communities of the Great Barrier Reef (Australia). MARINE POLLUTION BULLETIN 2023; 188:114685. [PMID: 36739716 DOI: 10.1016/j.marpolbul.2023.114685] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 01/27/2023] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
The Great Barrier Reef (GBR) is the world's largest coral ecosystem and is threatened by climate change. This study investigated the impact of the 2016 Marine Heatwave (MHW) on plankton associated microbial communities along a ∼800 km transect in the GBR. 16S rRNA gene metabarcoding of archived plankton samples collected from November 2014 to August 2016 in this region showed a significant increase in Planctomycetes and bacteria belonging to the genus Vibrio and Synechococcus during and after the heatwave. Notably, Droplet Digital PCR and targeted metagenomic analysis applied on samples collected four months after the MHW event revealed the presence of several potential pathogenic Vibrio species previously associated with diseases in aquatic animals. Overall, the 2016 MHW significantly impacted the surface picoplankton community and fostered the spread of potentially pathogenic bacteria across the GBR providing an additional threat for marine biodiversity in this area.
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Affiliation(s)
- Lapo Doni
- Department of Earth, Environmental and Life Sciences (DISTAV), University of Genoa, Corso Europa 26, 16132 Genoa, Italy
| | - Caterina Oliveri
- Department of Earth, Environmental and Life Sciences (DISTAV), University of Genoa, Corso Europa 26, 16132 Genoa, Italy
| | - Aide Lasa
- Department of Earth, Environmental and Life Sciences (DISTAV), University of Genoa, Corso Europa 26, 16132 Genoa, Italy; Centro de Investigación Mariña da Universidade de Vigo (CIM-UVigo), Departamento de Ecología y Biología Animal, Universidade de Vigo, 36310 Vigo, Spain
| | - Andrea Di Cesare
- Water Research Institute (IRSA) - MEG Molecular Ecology Group, CNR - National Research Council of Italy, Verbania 28922, Italy
| | - Sara Petrin
- Laboratory of Microbial ecology and Genomics, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro 35020, Italy
| | - Jaime Martinez-Urtaza
- Department of Genetics and Microbiology, Facultat de Biociéncies, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Barcelona, Spain
| | - Frank Coman
- CSIRO Oceans and Atmosphere, EcoSciences Precinct, 41 Boggo Road, Dutton Park, Brisbane 4102, QLD, Australia; Commonwealth Scientific and Industrial Research Organisation (CSIRO) Oceans and Atmosphere, BioSciences Precinct (QBP), St Lucia, QLD, Australia
| | - Anthony Richardson
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Oceans and Atmosphere, BioSciences Precinct (QBP), St Lucia, QLD, Australia; Centre for Applications in Natural Resource Mathematics, School of Mathematics and Physics, University of Queensland, Saint Lucia 4072, QLD, Australia
| | - Luigi Vezzulli
- Department of Earth, Environmental and Life Sciences (DISTAV), University of Genoa, Corso Europa 26, 16132 Genoa, Italy.
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24
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Suzzi AL, Stat M, Gaston TF, Siboni N, Williams NLR, Seymour JR, Huggett MJ. Elevated estuary water temperature drives fish gut dysbiosis and increased loads of pathogenic vibrionaceae. ENVIRONMENTAL RESEARCH 2023; 219:115144. [PMID: 36584839 DOI: 10.1016/j.envres.2022.115144] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/19/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
Marine water temperatures are increasing globally, with eastern Australian estuaries warming faster than predicted. There is growing evidence that this rapid warming of coastal waters is increasing the abundance and virulence of pathogenic members of the Vibrionaceae, posing a significant health risk to both humans and aquatic organisms. Fish disease, notably outbreaks of emerging pathogens in response to environmental perturbations such as heatwaves, have been recognised in aquaculture settings. Considerably less is known about how rising sea surface temperatures will impact the microbiology of wild fish populations, particularly those within estuarine systems that are more vulnerable to warming. We used a combination of Vibrio-specific quantitative PCR and amplicon sequencing of the 16S rRNA and hsp60 genes to examine seawater and fish (Pelates sexlineatus) gut microbial communities across a quasi-natural experimental system, where thermal pollution from coal-fired power stations creates a temperature gradient of up to 6 °C, compatible with future predicted temperature increases. At the warmest site, fish hindgut microbial communities were in a state of dysbiosis characterised by shifts in beta diversity and a proliferation (71.5% relative abundance) of the potential fish pathogen Photobacterium damselae subsp. damselae. Comparable patterns were not identified in the surrounding seawater, indicating opportunistic proliferation within estuarine fish guts under thermal stress. A subsequent evaluation of predicted future warming-related risk due to pathogenic Vibrionaceae in temperate estuarine fish demonstrated that warming is likely to drive opportunistic pathogen increases in the upper latitudinal range of this estuarine fish, potentially impacting adaptations to future warming. These findings represent a breakthrough in our understanding of the dynamics of emerging pathogens in populations of wild aquatic organisms within environments likely to experience rapid warming under future climate change.
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Affiliation(s)
- Alessandra L Suzzi
- School of Environmental and Life Sciences, The University of Newcastle, Ourimbah, NSW, 2258, Australia.
| | - Michael Stat
- School of Environmental and Life Sciences, The University of Newcastle, Ourimbah, NSW, 2258, Australia
| | - Troy F Gaston
- School of Environmental and Life Sciences, The University of Newcastle, Ourimbah, NSW, 2258, Australia
| | - Nachshon Siboni
- Climate Change Cluster, University of Technology Sydney, NSW, 2007, Australia
| | - Nathan L R Williams
- Climate Change Cluster, University of Technology Sydney, NSW, 2007, Australia
| | - Justin R Seymour
- Climate Change Cluster, University of Technology Sydney, NSW, 2007, Australia
| | - Megan J Huggett
- School of Environmental and Life Sciences, The University of Newcastle, Ourimbah, NSW, 2258, Australia; Centre for Marine Ecosystems Research, School of Science, Edith Cowan University, Joondalup, WA, 6027, Australia
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25
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Dai W, Ye J, Xue Q, Liu S, Xu H, Liu M, Lin Z. Changes in Bacterial Communities of Kumamoto Oyster Larvae During Their Early Development and Following Vibrio Infection Resulting in a Mass Mortality Event. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2023; 25:30-44. [PMID: 36370246 DOI: 10.1007/s10126-022-10178-0] [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: 08/23/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
Vibrio and Ostreid herpesvirus 1 are responsible for mass mortalities of oyster larvae in hatcheries. Relevant works have focused on their relationships with the disease when larval mortality occurs. On the contrary, little is known about how the resident microbiota in oyster larvae responds to Vibrio-infected disease causing mortality as the disease progressed, whereas this knowledge is fundamental to unveil the etiology of the disease. Here, we analyzed the temporal succession of the microbiome of Kumamoto oyster (Crassostrea sikamea) larvae during their early development, accompanied by a Vibrio-caused mortality event that occurred at the post D-stage of larval development in a shellfish hatchery in Ningbo, China, on June 2020. The main causative agent of larval mortality was attributable to Vibrio infection, which was confirmed by linearly increased Vibrio abundance over disease progression. Larval bacterial communities dramatically changed over host development and disease progression, as highlighted by reduced α-diversity and less diverse core taxa when the disease occurred. Null model and phylogenetic-based mean nearest taxon distance analyses showed that the relative importance of deterministic processes governing larval bacterial assembly initially increased over host development, whereas this dominance was depleted over disease progression. Furthermore, we screened the disease-discriminatory taxa with a significant change in their relative abundances, which could be indicative of disease progression. In addition, network analysis revealed that disease occurrence remodeled the co-occurrence patterns and niche characteristics of larval microbiota. Our findings demonstrate that the dysbiosis of resident bacterial communities and the shift of microecological mechanisms in the larval microbiome may contribute to mortality during oyster early development.
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Affiliation(s)
- Wenfang Dai
- Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ningbo, China
- Zhejiang Key Laboratory of Aquatic Germplasm Resource, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, China
| | - Jing Ye
- Zhejiang Key Laboratory of Aquatic Germplasm Resource, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, China
| | - Qinggang Xue
- Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ningbo, China.
- Zhejiang Key Laboratory of Aquatic Germplasm Resource, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, China.
| | - Sheng Liu
- Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ningbo, China
- Zhejiang Key Laboratory of Aquatic Germplasm Resource, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, China
| | - Hongqiang Xu
- Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ningbo, China
- Zhejiang Key Laboratory of Aquatic Germplasm Resource, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, China
| | - Minhai Liu
- Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ningbo, China
- Zhejiang Key Laboratory of Aquatic Germplasm Resource, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, China
| | - Zhihua Lin
- Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ningbo, China.
- Zhejiang Key Laboratory of Aquatic Germplasm Resource, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, China.
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Fine-Scale Structuring of Planktonic Vibrio spp. in the Chinese Marginal Seas. Appl Environ Microbiol 2022; 88:e0126222. [PMID: 36346224 PMCID: PMC9746320 DOI: 10.1128/aem.01262-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Vibrio is ubiquitous in marine environments with high metabolism flexibility and genome plasticity. Studies have investigated the ecological distribution of Vibrio spp. in several narrow zones, but a broad scale pattern of distribution and community assembly is still lacking. Here, we elucidated the distribution of Vibrio spp. in seawater along the Chinese marginal seas with a high spatial range. Comparison of Vibrio abundance between 3- and 0.2-μm-pore-size membranes showed distinction in preferential lifestyle. Vibrio spp. in the Yellow Sea (YS) was low in abundance and adopted a particle-associated lifestyle, whereas that in the East China Sea (ECS) and South China Sea (SCS) was more abundant and was likely in a temporary free-living state as a strategy to cope with nutrient limitation. Vibrio community compositions were also separated by sampling area, with different dominant groups in YS (Vibrio chagasii and Vibrio harveyi), ECS and SCS (Vibrio japonicus and V. chagasii). The community niche breadth was significantly wider in ECS and SCS than that of YS. Among species, V. chagasii and V. harveyi had the largest niche breadths likely reflecting strong competitive positions. Stochastic processes played important roles in shaping the geographical pattern of the vibrionic community. Environmental selection (e.g., temperature, salinity, and dissolved oxygen) had a much greater impact on the community in surface than in bottom water. The large proportions of unexplained variations (78.9%) imply complex mechanisms in their community assembly. Our study provides insights into the spatial distribution patterns and underlying assembly mechanisms of Vibrio at a broad spatial scale. IMPORTANCE Vibrio spp. may exert large impacts on biogeochemical cycling in coastal habitats, and their ecological importance has drawn increasing attention. Here, we investigated the spatial distribution pattern and community assembly of Vibrio populations along the Chinese marginal seas, spanning a wide spatial scale. Our results showed that the abundances of the Vibrio population increased with decreasing latitude and their preferential lifestyle differed among adjacent coastal areas. The compositions of Vibrio spp. were also separated by geographical location, which was mainly attributable to stochastic processes. Overall, this work contributes to the understanding of the ecological distribution patterns and the community assembly mechanisms of marine vibrios at a high spatial range. The large proportion of unexplained variations indicates the existence of complex mechanisms in the assembly of vibrionic community which should be considered comprehensively in future.
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Guo Y, Wu C, Sun J. Pathogenic bacteria significantly increased under oxygen depletion in coastal waters: A continuous observation in the central Bohai Sea. Front Microbiol 2022; 13:1035904. [DOI: 10.3389/fmicb.2022.1035904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 10/19/2022] [Indexed: 11/22/2022] Open
Abstract
The spread of pathogenic bacteria in coastal waters endangers the health of the local people and jeopardizes the safety of the marine environment. However, their dynamics during seasonal hypoxia in the Bohai Sea (BHS) have not been studied. Here, pathogenic bacteria were detected from the 16S rRNA gene sequencing database and were used to explore their dynamics and driving factors with the progressively deoxygenating in the BHS. Our results showed that pathogenic bacteria were detected in all samples, accounting for 0.13 to 24.65% of the total number of prokaryotic sequences in each sample. Pathogenic Proteobacteria was dominated in all samples, followed by Firmicutes, Actinobacteria, Tenericutes, and Bacteroidetes, etc. β-diversity analysis showed that pathogenic bacteria are highly temporally heterogeneous and regulated by environmental factors. According to RDA analysis, these variations may be influenced by salinity, ammonia, DO, phosphate, silicate, and Chl a. Additionally, pathogenic bacteria in surface water and hypoxia zone were found to be significantly separated in August. The vertical distribution of pathogenic bacterial communities is influenced by several variables, including DO and nutrition. It is noteworthy that the hypoxia zones increase the abundance of certain pathogenic genera, especially Vibrio and Arcobacter, and the stability of the pathogenic bacterial community increased from May to August. These phenomena indicate that the central Bohai Sea is threatened by an increasingly serious pathogenic community from May to August. And the developing hypoxia zone in the future may intensify this phenomenon and pose a more serious threat to human health. This study provides new insight into the changes of pathogenic bacteria in aquatic ecosystems and may help to make effective policies to control the spread of pathogenic bacteria.
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Ibrahim D, Abd El-Hamid MI, Al-Zaban MI, ElHady M, El-Azzouny MM, ElFeky TM, Al Sadik GM, Samy OM, Hamed TA, Albalwe FM, Alenezi MA, Omar AE. Impacts of Fortifying Nile Tilapia ( Oreochromis niloticus) Diet with Different Strains of Microalgae on Its Performance, Fillet Quality and Disease Resistance to Aeromonas hydrophila Considering the Interplay between Antioxidant and Inflammatory Response. Antioxidants (Basel) 2022; 11:2181. [PMID: 36358553 PMCID: PMC9686914 DOI: 10.3390/antiox11112181] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 10/22/2022] [Accepted: 10/28/2022] [Indexed: 09/06/2023] Open
Abstract
The oxidative stress facing fish during intensive production brings about diseases and mortalities that negatively influence their performance. Along with that, the increased awareness of omega-3 polyunsaturated fatty acids (omega-3-PUFAs) health benefits has been triggered the introduction of alternative additives in aqua feed that cause not only modulation in fish immune response but also fortification of their fillet. In this context, the role of microalgae mix (NSS) containing Nannochloropsis oculate and Schizochytrium and Spirulina species, which were enriched with bioactive molecules, especially EPA and DHA, was assessed on Nile tilapia's performance, fillet antioxidant stability, immune response, and disease resistance. Varying levels of NSS (0.75, 1.5, and 3%) were added to Nile tilapia's diet for 12 weeks and then a challenge of fish with virulent Aeromonas hydrophila (A. hydrophila) was carried out. Results showed that groups fed NSS, especially at higher levels, showed an improved WG and FCR, which corresponded with enhanced digestive enzymes' activities. Higher T-AOC was detected in muscle tissues of NSS3.0% fed fish with remarkable reduction in ROS, H2O2, and MDA contents, which came in parallel with upregulation of GSH-Px, CAT, and SOD genes. Notably, the contents of EPA and DHA in fillet were significantly increased with increasing the NSS levels. The mean log10 counts of pathogenic Vibrio and Staphylococcus species were reduced, and conversely, the populations of beneficial Lactobacillus and Bacillus species were increased more eminent after supplementation of NSS3.0% and NSS1.5%. Moreover, regulation of the immune response (lysozyme, IgM, ACH50, NO, and MPO), upregulation of IL-10, TGF-β, and IgM, and downregulation of IL-1β, TNF-α, HSP70,and COX-2 were observed following dietary higher NSS levels. After challenge, reduction in A. hydrophila counts was more prominent, especially in NSS3.0% supplemented group. Taken together, the current study encourages the incorporation of such microalgae mix in Nile tilapia's diet for targeting maximum performance, superior fillet quality, and protection against A. hydrophila.
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Affiliation(s)
- Doaa Ibrahim
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Marwa I. Abd El-Hamid
- Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Mayasar I. Al-Zaban
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Mohamed ElHady
- Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Mona M. El-Azzouny
- Department of Bacteriology, Animal Health Research Institute (AHRI), Zagazig Branch, Agriculture Research Center (ARC), Zagazig 44511, Egypt
| | - Tamer Mohamed ElFeky
- Department of Bacteriology, Animal Health Research Institute (AHRI), Mansura Lab, Agriculture Research Center (ARC), Mansura 35516, Egypt
| | - Gehan M. Al Sadik
- Department of Bacteriology, Animal Health Research Institute (AHRI), Zagazig Branch, Agriculture Research Center (ARC), Zagazig 44511, Egypt
| | - Omima M. Samy
- Department of Pathology and Clinical Pathology, Animal Health Research Institute (AHRI), Zagazig Branch, Agriculture Research Center (ARC), Zagazig 44511, Egypt
| | - Thoria A. Hamed
- Department of Biochemistry, Animal Health Research Institute (AHRI), Zagazig Branch, Agriculture Research Center (ARC), Zagazig 44511, Egypt
| | - Fauzeya Mateq Albalwe
- Department of Biology, Faculty of Science, Tabuk University, Tabuk 71491, Saudi Arabia
| | | | - Anaam E. Omar
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
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29
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Scro AK, Westphalen J, Kite-Powell HL, Brawley JW, Smolowitz RM. The effect of off-bottom versus on-bottom oyster culture on total and pathogenic Vibrio spp. abundances in oyster tissue, water and sediment samples. Int J Food Microbiol 2022; 379:109870. [DOI: 10.1016/j.ijfoodmicro.2022.109870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/30/2022] [Accepted: 08/02/2022] [Indexed: 11/25/2022]
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30
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Ferchiou S, Caza F, de Boissel PGJ, Villemur R, St-Pierre Y. Applying the concept of liquid biopsy to monitor the microbial biodiversity of marine coastal ecosystems. ISME COMMUNICATIONS 2022; 2:61. [PMID: 37938655 PMCID: PMC9723566 DOI: 10.1038/s43705-022-00145-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 06/28/2022] [Accepted: 07/08/2022] [Indexed: 10/04/2023]
Abstract
Liquid biopsy (LB) is a concept that is rapidly gaining ground in the biomedical field. Its concept is largely based on the detection of circulating cell-free DNA (ccfDNA) fragments that are mostly released as small fragments following cell death in various tissues. A small percentage of these fragments are from foreign (nonself) tissues or organisms. In the present work, we applied this concept to mussels, a sentinel species known for its high filtration capacity of seawater. We exploited the capacity of mussels to be used as natural filters to capture environmental DNA fragments of different origins to provide information on the biodiversity of marine coastal ecosystems. Our results showed that hemolymph of mussels contains DNA fragments that varied considerably in size, ranging from 1 to 5 kb. Shotgun sequencing revealed that a significant amount of DNA fragments had a nonself microbial origin. Among these, we found DNA fragments derived from bacteria, archaea, and viruses, including viruses known to infect a variety of hosts that commonly populate coastal marine ecosystems. Taken together, our study shows that the concept of LB applied to mussels provides a rich and yet unexplored source of knowledge regarding the microbial biodiversity of a marine coastal ecosystem.
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Affiliation(s)
- Sophia Ferchiou
- INRS-Centre Armand-Frappier Santé Biotechnologie, Laval, Québec, H7V 1B7, Canada
| | - France Caza
- INRS-Centre Armand-Frappier Santé Biotechnologie, Laval, Québec, H7V 1B7, Canada
| | | | - Richard Villemur
- INRS-Centre Armand-Frappier Santé Biotechnologie, Laval, Québec, H7V 1B7, Canada
| | - Yves St-Pierre
- INRS-Centre Armand-Frappier Santé Biotechnologie, Laval, Québec, H7V 1B7, Canada.
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31
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Jiang J, Zhou H, Zhang T, Yao C, Du D, Zhao L, Cai W, Che L, Cao Z, Wu XE. Machine learning to predict dynamic changes of pathogenic Vibrio spp. abundance on microplastics in marine environment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 305:119257. [PMID: 35398156 DOI: 10.1016/j.envpol.2022.119257] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 03/14/2022] [Accepted: 04/01/2022] [Indexed: 05/27/2023]
Abstract
Microplastics are widely found in the marine environment. Recent studies have shown that pathogenic microorganisms can hitchhike on microplastics, which might act as a vector for the spread of pathogens. Vibrio spp. are known to be pathogenic to humans and can cause serious foodborne diseases. In this study, using datasets from an estuary and a mariculture zone in China, five machine learning models were established to predict the relative abundance of Vibrio spp. on microplastics. The results showed that deep neural network (DNN) model and RandomForest algorithm achieved the best predictive performance. Different data sources, data sampling, and processing methods had a little impact on the prediction performance of DNN and RandomForest models. SHapley Additive exPlanations (SHAP) indicated that salinity and temperature are the primary factors affecting the relative abundance of Vibrio spp. The prediction performances of the five machine learning models were further improved by feature selection, providing information to support future experimental research. The results of this study could help establish a long-term and dynamic monitoring system for the relative abundance of Vibrio spp. on microplastics in response to environmental factors as well as provide useful information for assessing the potential health impacts of microplastics on marine ecology and humans.
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Affiliation(s)
- Jiawen Jiang
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Hua Zhou
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Ting Zhang
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Chuanyi Yao
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Delin Du
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Liang Zhao
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Wenfang Cai
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Liming Che
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Zhikai Cao
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Xue E Wu
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.
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Mudadu AG, Bazzoni AM, Melillo R, Lorenzoni G, Piras G, Salza S, Cau S, Soro B, Vodret B, Tedde T, Fois N, Serra S, Virgilio S, Meloni D. Determination of phytoplankton in water samples, algal biotoxins, microbiological parameters and microplastics in Mediterranean mussels ( Mytilus galloprovincialis Lamarck, 1819) from an experimental pilot farm in the Calich Lagoon (Sardinia, Italy). Ital J Food Saf 2022; 11:9973. [PMID: 35284336 PMCID: PMC8908440 DOI: 10.4081/ijfs.2022.9973] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 01/12/2022] [Indexed: 11/28/2022] Open
Abstract
The aims of this paper were to collect and analyse preliminary data of phytoplankton in the water, biotoxins, Escherichia coli, Salmonella spp., Vibrio spp. and microplastic eventually present in farmed mussels, and to acquire information about the production capability from an experimental pilot farm of the Calich Lagoon. Two sampling sessions were carried out, in February and in May 2019, also monitoring the water condition (pH, temperature, salinity, dissolved oxygen, chlorophyll a). No potentially toxic algae were detected, and moreover no biotoxins (Paralytic Shellfish Poison, Diarrheic Shellfish Poison, Amnesic Shellfish Poison) were found in mussels. E.coli was present with the highest concentration in February (16000 MPN/100g e.p.). Salmonella and Vibrio spp. have not been detected. Almost a microplastic per grams was found, mainly fiber of different colours. Further studies, carried out for several months, will allow to better understand the possible problems related to the production of mussels in a lagoon not yet classified as a shellfish production area.
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Affiliation(s)
- Alessandro Graziano Mudadu
- Complex Structure of Microbiology and Inspection of Food of Animal Origin, Experimental Zooprophylactic Institute of Sardinia, Sassari
| | - Anna Maria Bazzoni
- ARPAS - Regional Agency for Environmental Protection of Sardinia, Sassari
| | - Rita Melillo
- Complex Structure of Microbiology and Inspection of Food of Animal Origin, Experimental Zooprophylactic Institute of Sardinia, Sassari
| | - Giuseppa Lorenzoni
- Complex Structure of Microbiology and Inspection of Food of Animal Origin, Experimental Zooprophylactic Institute of Sardinia, Sassari
| | - Gabriella Piras
- Complex Structure of Microbiology and Inspection of Food of Animal Origin, Experimental Zooprophylactic Institute of Sardinia, Sassari
| | - Sara Salza
- Complex Structure of Microbiology and Inspection of Food of Animal Origin, Experimental Zooprophylactic Institute of Sardinia, Sassari
| | - Simona Cau
- Complex Structure of Microbiology and Inspection of Food of Animal Origin, Experimental Zooprophylactic Institute of Sardinia, Sassari
| | - Barbara Soro
- Complex Structure of Microbiology and Inspection of Food of Animal Origin, Experimental Zooprophylactic Institute of Sardinia, Sassari
| | - Bruna Vodret
- Complex Structure of Microbiology and Inspection of Food of Animal Origin, Experimental Zooprophylactic Institute of Sardinia, Sassari
| | - Tiziana Tedde
- Complex Structure of Microbiology and Inspection of Food of Animal Origin, Experimental Zooprophylactic Institute of Sardinia, Sassari
| | - Nicola Fois
- AGRIS SARDEGNA - Agency for Research in Agriculture, Bonassai Research Center, Olmedo (SS)
| | - Simonetto Serra
- AGRIS SARDEGNA - Agency for Research in Agriculture, Bonassai Research Center, Olmedo (SS)
| | - Sebastiano Virgilio
- Complex Structure of Microbiology and Inspection of Food of Animal Origin, Experimental Zooprophylactic Institute of Sardinia, Sassari
| | - Domenico Meloni
- Department of Veterinary Medicine, University of Sassari, Italia
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33
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Davies CE, Thomas JE, Malkin SH, Batista FM, Rowley AF, Coates CJ. Hematodinium sp. infection does not drive collateral disease contraction in a crustacean host. eLife 2022; 11:70356. [PMID: 35179494 PMCID: PMC8856654 DOI: 10.7554/elife.70356] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 02/08/2022] [Indexed: 01/10/2023] Open
Abstract
Host, pathogen, and environment are determinants of the disease triangle, the latter being a key driver of disease outcomes and persistence within a community. The dinoflagellate genus Hematodinium is detrimental to crustaceans globally - considered to suppress the innate defences of hosts, making them more susceptible to co-infections. Evidence supporting immune suppression is largely anecdotal and sourced from diffuse accounts of compromised decapods. We used a population of shore crabs (Carcinus maenas), where Hematodinium sp. is endemic, to determine the extent of collateral infections across two distinct environments (open-water, semi-closed dock). Using a multi-resource approach (PCR, histology, haematology, population genetics, eDNA), we identified 162 Hematodinium-positive crabs and size/sex-matched these to 162 Hematodinium-free crabs out of 1191 analysed. Crabs were interrogated for known additional disease-causing agents; haplosporidians, microsporidians, mikrocytids, Vibrio spp., fungi, Sacculina, trematodes, and haemolymph bacterial loads. We found no significant differences in occurrence, severity, or composition of collateral infections between Hematodinium-positive and Hematodinium-free crabs at either site, but crucially, we recorded site-restricted blends of pathogens. We found no gross signs of host cell immune reactivity towards Hematodinium in the presence or absence of other pathogens. We contend Hematodinium sp. is not the proximal driver of co-infections in shore crabs, which suggests an evolutionary drive towards latency in this environmentally plastic host.
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Affiliation(s)
- Charlotte E Davies
- Department of Biosciences, College of Science, Swansea University, Swansea, United Kingdom
| | - Jessica E Thomas
- Department of Biosciences, College of Science, Swansea University, Swansea, United Kingdom
| | - Sophie H Malkin
- Department of Biosciences, College of Science, Swansea University, Swansea, United Kingdom
| | - Frederico M Batista
- Department of Biosciences, College of Science, Swansea University, Swansea, United Kingdom.,Centre for Environment, Fisheries and Aquaculture Science (Cefas), Weymouth, United Kingdom
| | - Andrew F Rowley
- Department of Biosciences, College of Science, Swansea University, Swansea, United Kingdom
| | - Christopher J Coates
- Department of Biosciences, College of Science, Swansea University, Swansea, United Kingdom
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34
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Bernáldez-Sarabia J, Lizárraga-Partida ML, Hernández-López EL, Gasperin-Bulbarela J, Licea-Navarro AF, Guerrero A, Sánchez-Castrejón E, Franco-Moreno A. Distribution of pathogenic vibrios and Vibrio spp. in the water column and sediment samples from the southern Gulf of Mexico. MARINE POLLUTION BULLETIN 2021; 173:113116. [PMID: 34768193 DOI: 10.1016/j.marpolbul.2021.113116] [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: 04/28/2021] [Revised: 10/22/2021] [Accepted: 10/31/2021] [Indexed: 06/13/2023]
Abstract
This study quantified the distribution of Vibrio spp. by qPCR and pathogenic vibrio species by metagenomics, during 2 oceanographic cruises-XIXIMI-04 and XIXIMI-05 -in the southern Gulf of Mexico (GoMex). A total of 708 samples from various levels of the water column and 22 sediment samples were analyzed, according to a designed net of sampling lines. Sampling was focused on reported water masses with distinctive characteristics, to detect the presence-absence of vibrios. The results indicated that the genus Vibrio was detected along the entire water column and in sediments. Pathogenic vibrios, such as V, campbellii, V. parahaemolyticus, V. vulnificus or V. cholerae were also detected in the water column and in sediments, in both oceanographic cruises. Thus, the ecological conditions of the GoMex permit the growth of Vibrio spp. in deep water environments of the GoMex, despite continuous oil input from natural and anthropogenic sources.
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Affiliation(s)
- Johanna Bernáldez-Sarabia
- Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Carretera Ensenada-Tijuana 3918, zona Playitas, Ensenada, Baja California 22860, Mexico.
| | - Marcial L Lizárraga-Partida
- Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Carretera Ensenada-Tijuana 3918, zona Playitas, Ensenada, Baja California 22860, Mexico.
| | - Edna L Hernández-López
- Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Carretera Ensenada-Tijuana 3918, zona Playitas, Ensenada, Baja California 22860, Mexico
| | - Jahaziel Gasperin-Bulbarela
- Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Carretera Ensenada-Tijuana 3918, zona Playitas, Ensenada, Baja California 22860, Mexico.
| | - Alexei F Licea-Navarro
- Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Carretera Ensenada-Tijuana 3918, zona Playitas, Ensenada, Baja California 22860, Mexico.
| | - Abraham Guerrero
- Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Carretera Ensenada-Tijuana 3918, zona Playitas, Ensenada, Baja California 22860, Mexico; Cátedras CONACyT-CIAD, Centro de Investigación en Alimentación y Desarrollo, A.C. Unidad Mazatlán, Av. Sábalo Cerritos S/N 82100, Mazatlán, Sinaloa, Mexico.
| | - Edna Sánchez-Castrejón
- Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Carretera Ensenada-Tijuana 3918, zona Playitas, Ensenada, Baja California 22860, Mexico.
| | - Andrea Franco-Moreno
- Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Carretera Ensenada-Tijuana 3918, zona Playitas, Ensenada, Baja California 22860, Mexico.
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Albuixech-Martí S, Lynch SA, Culloty SC. Connectivity dynamics in Irish mudflats between microorganisms including Vibrio spp., common cockles Cerastoderma edule, and shorebirds. Sci Rep 2021; 11:22159. [PMID: 34773053 PMCID: PMC8589998 DOI: 10.1038/s41598-021-01610-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 10/25/2021] [Indexed: 02/07/2023] Open
Abstract
Shellfish, including the key species the common cockle Cerastoderma edule, living and feeding in waters contaminated by infectious agents can accumulate them within their tissues. It is unknown if microbial pathogens and microparasites can subsequently be transmitted via concomitant predation to their consumers, including shorebirds. The objective of this study was to assess if pathogens associated with C. edule could be detected seasonally in the faeces of shorebirds that feed on C. edule and in the physical environment (sediment) in which C. edule reside, along the Irish and Celtic Seas. Two potentially pathogenic global groups, Vibrio and Haplosporidia, were detected in C. edule. Although Haplosporidia were not detected in the bird faeces nor in the sediment, identical strains of Vibrio splendidus were detected in C. edule and bird faecal samples at sites where the oystercatcher Haematopus ostralegus and other waders were observed to be feeding on cockles. Vibrio spp. prevalence was seasonal and increased in C. edule and bird faecal samples during the warmer months, possibly due to higher seawater temperatures that promote the replication of this bacteria. The sediment samples showed an overall higher prevalence of Vibrio spp. than the bird faecal and C. edule samples, and its detection remained consistently high through the sites and throughout the seasons, which further supports the role of the sediment as a Vibrio reservoir. Our findings shed light on the fact that not all pathogen groups are transmitted from prey to predator via feeding but bacteria such as V. splendidus can be. As most of the wading birds observed in this study are migratory, the results also indicate the potential for this bacterium to be dispersed over greater geographic distances, which will have consequences for areas where it may be introduced.
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Affiliation(s)
- Sara Albuixech-Martí
- School of Biological, Earth and Environmental Sciences, University College Cork, Cork, VGV5+95, Ireland.
| | - Sharon A Lynch
- School of Biological, Earth and Environmental Sciences, University College Cork, Cork, VGV5+95, Ireland
- Aquaculture and Fisheries Development Centre, University College Cork, Cork, VGV5+95, Ireland
| | - Sarah C Culloty
- School of Biological, Earth and Environmental Sciences, University College Cork, Cork, VGV5+95, Ireland
- Aquaculture and Fisheries Development Centre, University College Cork, Cork, VGV5+95, Ireland
- MaREI Centre for Climate, Energy and Marine, Environmental Research Institute, University College Cork, Cork, VGV5+95, Ireland
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Huang B, Zhang X, Wang C, Bai C, Li C, Li C, Xin L. Isolation and Characterization of Vibrio kanaloae as a Major Pathogen Associated with Mass Mortalities of Ark Clam, Scapharca broughtonii, in Cold Season. Microorganisms 2021; 9:2161. [PMID: 34683482 PMCID: PMC8541523 DOI: 10.3390/microorganisms9102161] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 10/08/2021] [Accepted: 10/13/2021] [Indexed: 11/16/2022] Open
Abstract
High temperature is a risk factor for vibriosis outbreaks. Most vibrios are opportunistic pathogens that cause the mortality of aquatic animals at the vibrio optimal growth temperature (~25 °C), whereas a dominant Vibrio kanaloae strain SbA1-1 is isolated from natural diseased ark clams (Scapharca broughtonii) during cold seasons in this study. Consistent symptoms and histopathological features reappeared under an immersion infection with SbA1-1 performed at 15 °C. The pathogenicity difference of SbA1-1 was assessed under different temperatures (15 °C and 25 °C). The cumulative mortality rates of ark clams were significantly higher at the low temperature (15 °C) than at the high temperature (25 °C); up to 98% on 16th day post SbA1-1 infection. While the growth ratio of SbA1-1 was retarded at the low temperature, the hemolytic activity and siderophores productivity of SbA1-1 were increased. This study constitutes the first isolation of V. kanaloae from the natural diseased ark clams (S. broughtonii) in cold seasons and the exposition of the dissimilar pathogenicity of SbA1-1 at a different temperature. All the above indicates that V. kanaloae constitutes a threat to ark clam culture, especially in cold seasons.
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Affiliation(s)
- Bowen Huang
- School of Marine Sciences, Ningbo University, Ningbo 315211, China;
- Key Laboratory of Marine Aquaculture Disease Control, Ministry of Agriculture, Qingdao Key Laboratory of Marine Aquaculture Epidemiology and Biosecurity, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (X.Z.); (C.W.); (C.B.); (C.L.)
| | - Xiang Zhang
- Key Laboratory of Marine Aquaculture Disease Control, Ministry of Agriculture, Qingdao Key Laboratory of Marine Aquaculture Epidemiology and Biosecurity, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (X.Z.); (C.W.); (C.B.); (C.L.)
| | - Chongming Wang
- Key Laboratory of Marine Aquaculture Disease Control, Ministry of Agriculture, Qingdao Key Laboratory of Marine Aquaculture Epidemiology and Biosecurity, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (X.Z.); (C.W.); (C.B.); (C.L.)
| | - Changming Bai
- Key Laboratory of Marine Aquaculture Disease Control, Ministry of Agriculture, Qingdao Key Laboratory of Marine Aquaculture Epidemiology and Biosecurity, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (X.Z.); (C.W.); (C.B.); (C.L.)
| | - Chen Li
- Key Laboratory of Marine Aquaculture Disease Control, Ministry of Agriculture, Qingdao Key Laboratory of Marine Aquaculture Epidemiology and Biosecurity, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (X.Z.); (C.W.); (C.B.); (C.L.)
| | - Chenghua Li
- School of Marine Sciences, Ningbo University, Ningbo 315211, China;
| | - Lusheng Xin
- Key Laboratory of Marine Aquaculture Disease Control, Ministry of Agriculture, Qingdao Key Laboratory of Marine Aquaculture Epidemiology and Biosecurity, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (X.Z.); (C.W.); (C.B.); (C.L.)
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Wang J, Guo X, Xue J. Biofilm-Developed Microplastics As Vectors of Pollutants in Aquatic Environments. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:12780-12790. [PMID: 34553907 DOI: 10.1021/acs.est.1c04466] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Microplastics are a big and growing part of global pollution, which has aroused increasing concern in recent years because of their large amount, wide distribution, and adverse effects. Microplastics can sorb various pollutants from aquatic environments and act as vectors of pollutants. Most studies mainly focused on the virgin microplastics. However, microplastics in environments can be easily colonized by microorganisms, and form biofilm, which will influence the behaviors and potential risks of microplastics. The formation of biofilm on microplastics and its effects on their properties have been studied before, but their sorption and transport behaviors, and potential risks for pollutants' transfer have not been reviewed. In this paper, the role of biofilm-developed microplastics as vectors of pollutants was thoroughly analyzed and summarized. First, the formation of biofilm on microplastics, the compositions of microorganisms in biofilm, the influencing factors, and the property changes of microplastics after biofilm attachment are thoroughly reviewed. Second, the sorption of pollutants onto biofilm-developed microplastics is discussed. Third, the role of biofilm-developed microplastics as vector of pollutants are analyzed. We concluded that microplastics could provide unique substrates for microorganisms. Biofilm-developed microplastics can sorb more pollutants than the virgin ones, then act as vectors to introduce pollutants and attached microorganisms to aquatic environments and to organisms.
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Affiliation(s)
- Jianlong Wang
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, China
- Beijing Key Laboratory of Radioactive Waste Treatment, INET, Tsinghua University, Beijing 100084, China
| | - Xuan Guo
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, China
| | - Jianming Xue
- New Zealand Forest Research Institute (Scion), Private Bag 29237 Christchurch, New Zealand
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
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Liang J, Liu J, Zhan Y, Zhou S, Xue CX, Sun C, Lin Y, Luo C, Wang X, Zhang XH. Succession of marine bacteria in response to Ulva prolifera-derived dissolved organic matter. ENVIRONMENT INTERNATIONAL 2021; 155:106687. [PMID: 34144477 DOI: 10.1016/j.envint.2021.106687] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 05/21/2021] [Accepted: 05/30/2021] [Indexed: 06/12/2023]
Abstract
Increasing macroalgal blooms as a consequence of climate warming and coastal eutrophication have profound effects on the marine environment. The outbreaks of Ulva prolifera in the Yellow Sea of China occurring every summer since 2007 to present have formed the world's largest green tide. The green tide releases huge amounts of dissolved organic matter (DOM) to the seawater, causing an organic overload. However, how marine bacteria respond to this issue and the potential impact on the marine environment are still unclear. Here, we monitored the highly temporally resolved dynamics of marine bacterial community that occur in response to Ulva prolifera-derived DOM by performing a 168-h microcosm incubation experiment. DOM inputs significantly increased bacterial abundances within 6 h, decreased bacterial diversity and triggered clear community successions during the whole period of incubation. Vibrio of Gammaproteobacteria robustly and rapidly grew over short timescales (6-24 h), with its relative abundance accounting for up to 52.5% of active bacteria. From 24 to 48 h, some genera of Flavobacteriia grew rapidly, which was more conspicuous at a higher DOM concentration than at a lower concentration. The genus Donghicola of Alphaproteobacteria was predominant at later time points (>48 h). This bacterial community succession was accompanied by significant variations in the activity of 12 different extracellular enzymes, resulting in a rapid reduction of dissolved organic carbon by 74.5% within the first 36 h. In summary, our study demonstrates rapid successions of bacterial community and extracellular enzyme activity after DOM inputs, suggesting that the bacterial response to Ulva prolifera-derived organic matter may contribute to environmental restoration and may pose a health threat due to the bloom of potential pathogenic Vibrio.
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Affiliation(s)
- Jinchang Liang
- College of Marine Life Sciences, and Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao 266003, China
| | - Jiwen Liu
- College of Marine Life Sciences, and Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China; Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China
| | - Yuanchao Zhan
- College of Marine Life Sciences, and Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China; Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China
| | - Shun Zhou
- College of Marine Life Sciences, and Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao 266003, China
| | - Chun-Xu Xue
- College of Marine Life Sciences, and Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao 266003, China
| | - Chuang Sun
- College of Marine Life Sciences, and Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao 266003, China
| | - Yu Lin
- College of Marine Life Sciences, and Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao 266003, China
| | - Chunle Luo
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Qingdao 266100, China
| | - Xuchen Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Qingdao 266100, China
| | - Xiao-Hua Zhang
- College of Marine Life Sciences, and Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China; Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China.
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King WL, Kaestli M, Siboni N, Padovan A, Christian K, Mills D, Seymour J, Gibb K. Pearl Oyster Bacterial Community Structure Is Governed by Location and Tissue-Type, but Vibrio Species Are Shared Among Oyster Tissues. Front Microbiol 2021; 12:723649. [PMID: 34434182 PMCID: PMC8381468 DOI: 10.3389/fmicb.2021.723649] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 07/21/2021] [Indexed: 12/25/2022] Open
Abstract
Diseases of bivalves of aquacultural importance, including the valuable Australian silver-lipped pearl oyster (Pinctada maxima), have been increasing in frequency and severity. The bivalve microbiome is linked to health and disease dynamics, particularly in oysters, with putative pathogens within the Vibrio genus commonly implicated in oyster diseases. Previous studies have been biased toward the Pacific oyster because of its global dominance in oyster aquaculture, while much less is known about the microbiome of P. maxima. We sought to address this knowledge gap by characterizing the P. maxima bacterial community, and we hypothesized that bacterial community composition, and specifically the occurrence of Vibrio, will vary according to the sampled microenvironment. We also predicted that the inside shell swab bacterial composition could represent a source of microbial spillover biofilm into the solid pearl oyster tissues, thus providing a useful predictive sampling environment. We found that there was significant heterogeneity in bacterial composition between different pearl oyster tissues, which is consistent with patterns reported in other bivalve species and supports the hypothesis that each tissue type represents a unique microenvironment for bacterial colonization. We suggest that, based on the strong effect of tissue-type on the pearl oyster bacterial community, future studies should apply caution when attempting to compare microbial patterns from different locations, and when searching for disease agents. The lack of association with water at each farm also supported the unique nature of the microbial communities in oyster tissues. In contrast to the whole bacterial community, there was no significant difference in the Vibrio community among tissue types nor location. These results suggest that Vibrio species are shared among different pearl oyster tissues. In particular, the similarity between the haemolymph, inside shell and solid tissues, suggests that the haemolymph and inside shell environment is a source of microbial spillover into the oyster tissues, and a potentially useful tool for non-destructive routine disease testing and early warning surveillance. These data provide important foundational information for future studies identifying the factors that drive microbial assembly in a valuable aquaculture species.
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Affiliation(s)
- William L King
- Climate Change Cluster, University of Technology Sydney, Sydney, NSW, Australia
| | - Mirjam Kaestli
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, NT, Australia
| | - Nachshon Siboni
- Climate Change Cluster, University of Technology Sydney, Sydney, NSW, Australia
| | - Anna Padovan
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, NT, Australia
| | - Keith Christian
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, NT, Australia
| | - David Mills
- Genecology Research Centre, University of the Sunshine Coast, Sunshine Coast, QLD, Australia
| | - Justin Seymour
- Climate Change Cluster, University of Technology Sydney, Sydney, NSW, Australia
| | - Karen Gibb
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, NT, Australia
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Disentangling the abundance and structure of Vibrio communities in a semi-enclosed Bay with mariculture (Dongshan Bay, Southern China). Comput Struct Biotechnol J 2021; 19:4381-4393. [PMID: 34429854 PMCID: PMC8365367 DOI: 10.1016/j.csbj.2021.07.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/26/2021] [Accepted: 07/29/2021] [Indexed: 11/23/2022] Open
Abstract
The genus Vibrio contains a diverse group of heterotrophic bacteria, which are members of ubiquitous and abundant microbial communities in coastal ecosystems. Vibrio has been frequently found in a wide range of marine environments either by employing Vibrio-specific 16S rRNA sequencing or culturing methods. A combination of molecular and cultivation-dependent methods was developed to more precisely discriminate between different members of the genus Vibrio in seawater. This newly developed assay was subsequently applied to characterize Vibrio community composition in surface water at 18 mariculture sites. It Substantially improved the taxonomic resolution of Vibrio species when compared to traditional 16S rRNA analysis. Our qPCR and cultivation analyses revealed that average Vibrio abundance (Vibrio 16S rRNA gene copy numbers: 3.46 × 106 to 6.70 × 106 copies L−1) and live cell numbers (5.65 × 104–5.75 × 105 cfu mL−1) are significantly related to pH. Total bacteria and Vibrio-specific 16S rRNA metabarcode sequenceing resulted in a total of 10 and 32 operational taxonomic units (OTUs), respectively, and 15 Vibrio species were identified by targeted cultivation of Vibrio strains, with Vibrio fortis and V. brasiliensis dominating in the mariculture areas. The purpose of this study was to combine several analytical methods to improve current sequence-based Vibrio community surveys, and to prove for the effectiveness of this methodological approach comprehensively testing for Vibrio dynamics in different coastal environments.
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Brumfield KD, Usmani M, Chen KM, Gangwar M, Jutla AS, Huq A, Colwell RR. Environmental parameters associated with incidence and transmission of pathogenic Vibrio spp. Environ Microbiol 2021; 23:7314-7340. [PMID: 34390611 DOI: 10.1111/1462-2920.15716] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 07/27/2021] [Accepted: 08/10/2021] [Indexed: 12/17/2022]
Abstract
Vibrio spp. thrive in warm water and moderate salinity, and they are associated with aquatic invertebrates, notably crustaceans and zooplankton. At least 12 Vibrio spp. are known to cause infection in humans, and Vibrio cholerae is well documented as the etiological agent of pandemic cholera. Pathogenic non-cholera Vibrio spp., e.g., Vibrio parahaemolyticus and Vibrio vulnificus, cause gastroenteritis, septicemia, and other extra-intestinal infections. Incidence of vibriosis is rising globally, with evidence that anthropogenic factors, primarily emissions of carbon dioxide associated with atmospheric warming and more frequent and intense heatwaves, significantly influence environmental parameters, e.g., temperature, salinity, and nutrients, all of which can enhance growth of Vibrio spp. in aquatic ecosystems. It is not possible to eliminate Vibrio spp., as they are autochthonous to the aquatic environment and many play a critical role in carbon and nitrogen cycling. Risk prediction models provide an early warning that is essential for safeguarding public health. This is especially important for regions of the world vulnerable to infrastructure instability, including lack of 'water, sanitation, and hygiene' (WASH), and a less resilient infrastructure that is vulnerable to natural calamity, e.g., hurricanes, floods, and earthquakes, and/or social disruption and civil unrest, arising from war, coups, political crisis, and economic recession. Incorporating environmental, social, and behavioural parameters into such models allows improved prediction, particularly of cholera epidemics. We have reported that damage to WASH infrastructure, coupled with elevated air temperatures and followed by above average rainfall, promotes exposure of a population to contaminated water and increases the risk of an outbreak of cholera. Interestingly, global predictive risk models successful for cholera have the potential, with modification, to predict diseases caused by other clinically relevant Vibrio spp. In the research reported here, the focus was on environmental parameters associated with incidence and distribution of clinically relevant Vibrio spp. and their role in disease transmission. In addition, molecular methods designed for detection and enumeration proved useful for predictive modelling and are described, namely in the context of prediction of environmental conditions favourable to Vibrio spp., hence human health risk.
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Affiliation(s)
- Kyle D Brumfield
- Maryland Pathogen Research Institute, University of Maryland, College Park, MD, USA.,University of Maryland Institute for Advanced Computer Studies, University of Maryland, College Park, MD, USA
| | - Moiz Usmani
- Geohealth and Hydrology Laboratory, Department of Environmental Engineering Sciences, University of Florida, Gainesville, FL, USA
| | - Kristine M Chen
- Geohealth and Hydrology Laboratory, Department of Environmental Engineering Sciences, University of Florida, Gainesville, FL, USA
| | - Mayank Gangwar
- Geohealth and Hydrology Laboratory, Department of Environmental Engineering Sciences, University of Florida, Gainesville, FL, USA
| | - Antarpreet S Jutla
- Geohealth and Hydrology Laboratory, Department of Environmental Engineering Sciences, University of Florida, Gainesville, FL, USA
| | - Anwar Huq
- Maryland Pathogen Research Institute, University of Maryland, College Park, MD, USA
| | - Rita R Colwell
- Maryland Pathogen Research Institute, University of Maryland, College Park, MD, USA.,University of Maryland Institute for Advanced Computer Studies, University of Maryland, College Park, MD, USA
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Yamamoto K, Toya S, Sabidi S, Hoshiko Y, Maeda T. Diluted Luria-Bertani medium vs. sewage sludge as growth media: comparison of community structure and diversity in the culturable bacteria. Appl Microbiol Biotechnol 2021; 105:3787-3798. [PMID: 33856534 DOI: 10.1007/s00253-021-11248-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 02/27/2021] [Accepted: 03/17/2021] [Indexed: 12/26/2022]
Abstract
Because colony formation is essential to seek bacterial functions by the direct observation of phenotype, the diversification of colony formation for culturable bacteria is a big challenge in the research field of Environmental Biotechnology. In this study, the biodiversity of cultivable bacteria (colony or liquid culture) was compared by using Luria-Bertani (LB) medium and waste sewage sludge (WSS) under different dilutions and temperatures. When WSS was used as a bacterial source, whereas the highest number of colonies was found at the concentration of WSS (5%), a particular concentration of LB (10%) or WSS (1%) as a growth medium showed the best number of the operational taxonomic units (OTUs) of colonies. The results of bacterial community structure indicated that there are 1, 8, and 12 bacterial genera found uniquely in the agar plates of LB, 10% LB, and 5% WSS. By contrast, when palm oil mill effluent sludge was used as a bacterial source, the effect of dilution was different with WSS. When comparing the biodiversity between colonies and liquid culture, a high OTU value was observed in the colonies on the plate. In addition, 30°C showed the highest number of colonies in LB, 10% LB, and 5% WSS whereas the best OTUs were observed at 37°C for LB and 10% LB, and at 25°C for 5% WSS. This study demonstrates the diversification of cultivable bacteria through the number of OTUs in diluted LB medium and WSS, which is beneficial to isolate a unique bacterial strain.Key points• Impacts of diluted LB medium and WSS for colony formation were determined.• Difference of concentration of LB and WSS made different effects on colony formation.• Temperature change affected on diluted LB and WSS as media.
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Affiliation(s)
- Kazuo Yamamoto
- Department of Biological Functions Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Wakamatsu-Ku, Kitakyushu, Japan
| | - Shotaro Toya
- Department of Biological Functions Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Wakamatsu-Ku, Kitakyushu, Japan
| | - Sarah Sabidi
- Department of Biological Functions Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Wakamatsu-Ku, Kitakyushu, Japan
| | - Yuki Hoshiko
- Department of Biological Functions Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Wakamatsu-Ku, Kitakyushu, Japan
| | - Toshinari Maeda
- Department of Biological Functions Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Wakamatsu-Ku, Kitakyushu, Japan.
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Hassan MA, Abd Allah NA, Mabrok M. Inevitable impact of some environmental stressors on the frequency and pathogenicity of marine vibriosis. AQUACULTURE 2021; 536:736447. [DOI: 10.1016/j.aquaculture.2021.736447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Yang A, Li W, Tao Z, Ye H, Xu Z, Li Y, Gao Y, Yan X. Vibrio harveyi isolated from marine aquaculture species in eastern China and virulence to the large yellow croaker (Larimichthys crocea). J Appl Microbiol 2021; 131:1710-1721. [PMID: 33713523 DOI: 10.1111/jam.15070] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 03/04/2021] [Accepted: 03/09/2021] [Indexed: 12/26/2022]
Abstract
AIMS Diseases of maricultured species caused by Vibrio harveyi are increasing in China and other regions. This study examined the genetic diversity, antimicrobial susceptibility, plasmid profiles and virulence potential of the V. harveyi isolated from marine organisms farmed in two provinces in eastern China between 2014 and 2019. METHODS AND RESULTS A total of 54 V. harveyi were obtained from seven marine species. Enterobacterial repetitive intergenic consensus (ERIC)-PCR fingerprinting revealed substantial genetic heterogeneity among the V. harveyi isolates. There was no significant correlation between ERIC-PCR genotypes and host origins or fish farms. All the isolates were resistant to amoxicillin and ampicillin, and 79·6% to kanamycin. We found that 61·1% of the V. harveyi isolates had plasmid(s) and there were 14 different plasmid profiles. Most isolates from fish hosts (76·5%) contained plasmids; however, 75% of isolates from nonfish hosts lacked plasmids. Experimental infection results showed that isolates with plasmid(s) were more virulent to large yellow croaker than isolates lacking plasmids (P < 0·05). CONCLUSIONS This study confirmed that V. harveyi isolates obtained from animals farmed in the coastal region of east China were genetically diverse. Our results suggest that the virulence of various V. harveyi strains to fish is associated with the plasmids they carry. SIGNIFICANCE AND IMPACT OF THE STUDY More than 50% of the V. harveyi isolates carried one to 11 plasmids. The plasmid-borne traits of V. harveyi strains might be important for host adaptation and virulence, but they were not associated with susceptibility to the tested antibiotics.
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Affiliation(s)
- A Yang
- School of Fisheries, Zhejiang Ocean University, Zhoushan, China
| | - W Li
- Zhoushan Fisheries Research Institute, Zhoushan, China
| | - Z Tao
- School of Fisheries, Zhejiang Ocean University, Zhoushan, China
| | - H Ye
- School of Fisheries, Zhejiang Ocean University, Zhoushan, China
| | - Z Xu
- Zhoushan Fisheries Research Institute, Zhoushan, China
| | - Y Li
- School of Fisheries, Zhejiang Ocean University, Zhoushan, China
| | - Y Gao
- School of Fisheries, Zhejiang Ocean University, Zhoushan, China
| | - X Yan
- School of Fisheries, Zhejiang Ocean University, Zhoushan, China
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45
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Vincent-Hubert F, Wacrenier C, Morga B, Lozach S, Quenot E, Mège M, Lecadet C, Gourmelon M, Hervio-Heath D, Le Guyader FS. Passive Samplers, a Powerful Tool to Detect Viruses and Bacteria in Marine Coastal Areas. Front Microbiol 2021; 12:631174. [PMID: 33708186 PMCID: PMC7940377 DOI: 10.3389/fmicb.2021.631174] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 02/03/2021] [Indexed: 12/12/2022] Open
Abstract
The detection of viruses and bacteria which can pose a threat either to shellfish health or shellfish consumers remains difficult. The current detection methods rely on point sampling of water, a method that gives a snapshot of the microorganisms present at the time of sampling. In order to obtain better representativeness of the presence of these microorganisms over time, we have developed passive sampling using the adsorption capacities of polymer membranes. Our objectives here were to assess the feasibility of this methodology for field detection. Different types of membrane were deployed in coastal waters over 2 years and the microorganisms tested using qPCR were: human norovirus (NoV) genogroups (G)I and II, sapovirus, Vibrio spp. and the species Vibrio alginolyticus, V. cholerae, V. vulnificus, and V. parahaemolyticus, OsHV-1 virus, and bacterial markers of fecal contamination. NoV GII, Vibrio spp., and the AllBac general Bacteroidales marker were quantified on the three types of membrane. NoV GII and OsHV-1 viruses followed a seasonal distribution. All membranes were favorable for NoV GII detection, while Zetapor was more adapted for OsHV-1 detection. Nylon was more adapted for detection of Vibrio spp. and the AllBac marker. The quantities of NoV GII, AllBac, and Vibrio spp. recovered on membranes increased with the duration of exposure. This first application of passive sampling in seawater is particularly promising in terms of an early warning system for the prevention of contamination in oyster farming areas and to improve our knowledge on the timing and frequency of disease occurence.
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Affiliation(s)
| | | | - Benjamin Morga
- Ifremer, Laboratoire de Génétique et Pathologie des Mollusques, LGPMM/SG2M, La Tremblade, France
| | - Solen Lozach
- Ifremer, Laboratoire de Microbiologie, LSEM/SG2M, Nantes, France
| | | | - Mickaël Mège
- Ifremer, Laboratoire de Génétique et Pathologie des Mollusques, LGPMM/SG2M, La Tremblade, France
| | - Cyrielle Lecadet
- Ifremer, Laboratoire de Génétique et Pathologie des Mollusques, LGPMM/SG2M, La Tremblade, France
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46
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de Souza Valente C, Wan AHL. Vibrio and major commercially important vibriosis diseases in decapod crustaceans. J Invertebr Pathol 2021; 181:107527. [PMID: 33406397 DOI: 10.1016/j.jip.2020.107527] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 12/25/2020] [Accepted: 12/28/2020] [Indexed: 12/18/2022]
Abstract
Bacteria fromthe Vibriogenus are autochthonous to aquatic environments and ubiquitous in aquaculture production systems. Many Vibrio species are non-pathogenic and can be commonly found in healthy farmed aquatic animals. However, some Vibrio species and strains are pathogenic leading to a variety of 'vibriosis' diseases. These diseases can have a significant negative impact on animal production, including farmed crustaceans such as shrimps, lobsters, and crabs. As such, vibriosis can pose a threat to meeting growing food demand and global food security. Preventive management is essential to avoid the onset of vibriosis. This includes a robust health management plan, the use of prophylaxis and treatment measures, and enhancing animal health through nutrition. Furthermore, the use of probiotics, prebiotics, synbiotics, quorum sensing disruption, green water, biofloc, bacteriophages, and immune priming could also play a role in preventing and controlling a vibriosis outbreak. This review aims to inform and update the reader about the current state of knowledge about Vibrio and associated vibriosis in farmed crustaceans (i.e. shrimp, lobster, and crabs). Furthermore, the review will identify potential knowledge gaps in the literature, which serves as a basis for future research priorities.
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Affiliation(s)
- Cecília de Souza Valente
- Aquaculture and Nutrition Research Unit, Room 204, Annex Building, Ryan Institute and School of Natural Sciences, National University of Ireland Galway, Galway City H91 TK33, Ireland; Aquaculture and Nutrition Research Unit, Carna Research Station, Ryan Institute, National University of Ireland Galway, Carna, Connemara, Co. Galway H91 V8Y1, Ireland.
| | - Alex H L Wan
- Aquaculture and Nutrition Research Unit, Room 204, Annex Building, Ryan Institute and School of Natural Sciences, National University of Ireland Galway, Galway City H91 TK33, Ireland; Aquaculture and Nutrition Research Unit, Carna Research Station, Ryan Institute, National University of Ireland Galway, Carna, Connemara, Co. Galway H91 V8Y1, Ireland
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47
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Vincent-Hubert F, Wacrenier C, Morga B, Lozach S, Quenot E, Mège M, Lecadet C, Gourmelon M, Hervio-Heath D, Le Guyader FS. Passive Samplers, a Powerful Tool to Detect Viruses and Bacteria in Marine Coastal Areas. Front Microbiol 2021. [PMID: 33708186 DOI: 10.3389/fmicb.2021.631174/bibtex] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023] Open
Abstract
The detection of viruses and bacteria which can pose a threat either to shellfish health or shellfish consumers remains difficult. The current detection methods rely on point sampling of water, a method that gives a snapshot of the microorganisms present at the time of sampling. In order to obtain better representativeness of the presence of these microorganisms over time, we have developed passive sampling using the adsorption capacities of polymer membranes. Our objectives here were to assess the feasibility of this methodology for field detection. Different types of membrane were deployed in coastal waters over 2 years and the microorganisms tested using qPCR were: human norovirus (NoV) genogroups (G)I and II, sapovirus, Vibrio spp. and the species Vibrio alginolyticus, V. cholerae, V. vulnificus, and V. parahaemolyticus, OsHV-1 virus, and bacterial markers of fecal contamination. NoV GII, Vibrio spp., and the AllBac general Bacteroidales marker were quantified on the three types of membrane. NoV GII and OsHV-1 viruses followed a seasonal distribution. All membranes were favorable for NoV GII detection, while Zetapor was more adapted for OsHV-1 detection. Nylon was more adapted for detection of Vibrio spp. and the AllBac marker. The quantities of NoV GII, AllBac, and Vibrio spp. recovered on membranes increased with the duration of exposure. This first application of passive sampling in seawater is particularly promising in terms of an early warning system for the prevention of contamination in oyster farming areas and to improve our knowledge on the timing and frequency of disease occurence.
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Affiliation(s)
| | | | - Benjamin Morga
- Ifremer, Laboratoire de Génétique et Pathologie des Mollusques, LGPMM/SG2M, La Tremblade, France
| | - Solen Lozach
- Ifremer, Laboratoire de Microbiologie, LSEM/SG2M, Nantes, France
| | | | - Mickaël Mège
- Ifremer, Laboratoire de Génétique et Pathologie des Mollusques, LGPMM/SG2M, La Tremblade, France
| | - Cyrielle Lecadet
- Ifremer, Laboratoire de Génétique et Pathologie des Mollusques, LGPMM/SG2M, La Tremblade, France
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Chen X, Zhao H, Jiang G, Tang J, Xu Q, Huang L, Chen S, Zou S, Dong K, Li N. Responses of Free-Living Vibrio Community to Seasonal Environmental Variation in a Subtropical Inland Bay. Front Microbiol 2020; 11:610974. [PMID: 33381102 PMCID: PMC7767907 DOI: 10.3389/fmicb.2020.610974] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 11/11/2020] [Indexed: 01/02/2023] Open
Abstract
Vibrio are widely distributed in aquatic environments and strongly associated with eutrophic environments and human health through the consumption of contaminated seafood. However, the response of the Vibrio community to seasonal variation in eutrophic environments is poorly understood. In this study, we used a Vibrio-specific 16S rRNA sequencing approach to reveal the seasonal distribution pattern and diversity of the Vibrio community in the Maowei Sea, Beibu Gulf of China. The Shannon diversity of the Vibrio community was highest in the summer, while β-diversity analysis showed that Vibrio community structures were significantly different between seasons. Distance-based redundancy analysis (dbRDA) and Mantel test analysis suggested that total dissolved nitrogen (TDN), total dissolved phosphorus (TDP), dissolved inorganic nitrogen (DIN), salinity, and temperature were the key environmental factors shaping the Vibrio community structure, indicating a strong filtering effect of trophic condition on Vibrio communities. Furthermore, through random forest analysis, V. fluvialis, V. alginolyticus, V. proteolyticus, V. splendidus, and the other eight Vibrio species were more sensitive to eutrophic changes. This study revealed seasonal changes in Vibrio communities and the influence of environmental variation on Vibrio community composition, contributing to a better understanding of their potential ecological roles in a subtropical inland bay.
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Affiliation(s)
- Xing Chen
- Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Ministry of Education, Nanning Normal University, Nanning, China.,State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Huaxian Zhao
- Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Ministry of Education, Nanning Normal University, Nanning, China
| | - Gonglingxia Jiang
- Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Ministry of Education, Nanning Normal University, Nanning, China
| | - Jinli Tang
- Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Ministry of Education, Nanning Normal University, Nanning, China
| | - Qiangsheng Xu
- Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Ministry of Education, Nanning Normal University, Nanning, China
| | - Lengjinghua Huang
- Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Ministry of Education, Nanning Normal University, Nanning, China
| | - Si Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Shuqi Zou
- Department of Biological Sciences, Kyonggi University, Suwon-si, South Korea
| | - Ke Dong
- Department of Biological Sciences, Kyonggi University, Suwon-si, South Korea
| | - Nan Li
- Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Ministry of Education, Nanning Normal University, Nanning, China
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49
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Xu W, Gong L, Yang S, Gao Y, Ma X, Xu L, Chen H, Luo Z. Spatiotemporal Dynamics of Vibrio Communities and Abundance in Dongshan Bay, South of China. Front Microbiol 2020; 11:575287. [PMID: 33324364 PMCID: PMC7726330 DOI: 10.3389/fmicb.2020.575287] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 10/27/2020] [Indexed: 01/22/2023] Open
Abstract
The Vibrio genus inhabit estuarine and marine ecosystem throughout the world and can cause severe infections in humans and animals. Previous studies have demonstrated the dynamics of Vibrio at both community and population levels and assessed the close relationship between environmental factors and Vibrio diversity and abundance, such as temperature, salinity, and dissolved oxygen. It is also generally believed that aquaculture is the fastest-growing food sector, which is also applying great environmental impacts on microbial communities in aquatic ecosystems. However, our understanding of the spatiotemporal quantification of Vibrio throughout the four seasons in the aquaculture zone and response to environmental factors remains poor. To explore the spatiotemporal distribution and abundance of the Vibrio community with their related environmental factors and detect the relationships among them, we collected 10 seawater sites spanning four seasons across the whole year in Dongshan Bay for investigating the Vibrio community dynamics. Marked differences in diversity and abundance of the Vibrio community were observed between seasons, which were mainly driven by temperature, dissolved oxygen, nitrate, and nitrite. qPCR analysis showed that Vibrio abundance was most abundant in the summer (5.37 × 106 copies/L), compared with the autumn (4.58 × 106 copies/L), spring (1.18 × 106 copies/L), and winter (1.55 × 104 copies/L). A total of 22 Vibrio operational taxonomic units (OTUs) and 28 species were identified by universal bacteria 16S rRNA gene and cultivation methods, with Vibrio fortis the dominant in these aquaculture areas. To summarize, our present study is one of the few studies to research the occurrence of Vibrio in marine aquaculture of South China, and the results indicate that Vibrio are widely distributed in aquaculture environment and that a further risk assessment is needed to be conducted.
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Affiliation(s)
- Wei Xu
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China
| | - LinFeng Gong
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China
| | - Shuai Yang
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China
| | - Yuanhao Gao
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China
| | - Xiaowan Ma
- Fourth Institute of Oceanography, Ministry of Natural Resources, Beihai, China
| | - Limei Xu
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China
| | - Haisheng Chen
- Fishery Technology Promotion Station of Dongshan, Zhangzhou, China
| | - Zhuhua Luo
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, China.,School of Marine Sciences, Nanjing University of Information Science & Technology, Nanjing, China
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50
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Patterns and drivers of Vibrio isolates phylogenetic diversity in the Beibu Gulf, China. J Microbiol 2020; 58:998-1009. [PMID: 33095386 DOI: 10.1007/s12275-020-0293-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/04/2020] [Accepted: 08/31/2020] [Indexed: 12/12/2022]
Abstract
Members of the genus Vibrio are ubiquitous in aquatic environments and can be found either in a culturable or a viable but nonculturable (VBNC) state. Despite widespread concerns as to how to define the occurrence and dynamics of Vibrio populations by culture-independent approaches, further physiological research and relevant biotechnological developments will require the isolation and cultivation of the microbes from various environments. The present work provides data and perspectives on our understanding of culturable Vibrio community structure and diversity in the Beibu Gulf. Finally, we isolated 1,037 strains of Vibrio from 45 samples and identified 18 different species. Vibrio alginolyticus, V. cyclitrophicus, V. tasmaniensis, V. brasiliensis, and V. splendidus were the dominant species that had regional distribution characteristics. The correlation between the quantitative distribution and community structure of culturable Vibrio and environmental factors varied with the Vibrio species and geographical locations. Among them, salinity, nitrogen, and phosphorus were the main factors affecting the diversity of culturable Vibrio. These results help to fill a knowledge gap on Vibrio diversity and provide data for predicting and controlling pathogenic Vibrio outbreaks in the Beibu Gulf.
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