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Hong NTX, Baruah K, Nguyen Van H, Vanrompay D, Bossier P. Expression profiles of heat shock protein 70 and high-mobility groups box-1 protein in gnotobiotic brine shrimp challenged with different virulence levels of isogenic Vibrio harveyi strains. J Fish Dis 2024:e13954. [PMID: 38555529 DOI: 10.1111/jfd.13954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 03/16/2024] [Accepted: 03/19/2024] [Indexed: 04/02/2024]
Affiliation(s)
- Nguyen Thi Xuan Hong
- Laboratory of Aquaculture & Artemia Reference Center, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
- Faculty of Fisheries, University of Agriculture and Forestry, Hue University, Hue, Vietnam
| | - Kartik Baruah
- Department of Animal Nutrition and Management, Aquaculture Nutraceuticals Research Group, Faculty of Veterinary Medicine and Animal Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Hung Nguyen Van
- Research Institute for Aquaculture No. 3, Nha Trang, Vietnam
| | - Daisy Vanrompay
- Laboratory of Immunology and Animal Biotechnology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Peter Bossier
- Laboratory of Aquaculture & Artemia Reference Center, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
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Nasmia N, Serdiati N, Tahya AM, Safir M. Phytochemical analysis and antibacterial activity of palm waste extract against Vibrio harveyi and Vibrio parahaemolyticus. J Fish Dis 2024:e13924. [PMID: 38300462 DOI: 10.1111/jfd.13924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 01/02/2024] [Indexed: 02/02/2024]
Abstract
Vibrio harveyi and Vibrio parahaemolyticus are species of the Vibrio genus that often cause disease and mass mortality in crustaceans. If not handled quickly and appropriately, these diseases can cause considerable losses to farmers. Therefore, it is necessary to find a solution with safe and environmentally friendly disease prevention technology using natural ingredients, among others from plants, namely oil palm. Some parts of oil palm, namely leaves, fronds, fibres and oil palm pulp, which are palm waste, contain antibacterial compounds. This study aimed to assess the antibacterial activity of palm waste extracts, namely pulp, leaves, fronds and fibres using n-hexane, ethyl acetate, chloroform, ethanol and water maceration solvents against pathogenic bacteria V. harveyi and V. parahaemolyticus, and identify active compounds contained in palm waste. The results of the research are expected to produce innovative and sustainable solutions to control diseases in shrimp farming, contribute to the development of a sustainable fishing industry and open up the potential for utilizing palm waste as a value-added resource in the field of aquatic health. The results of observations on antibacterial activity tests and identifying the content of palm waste extract compounds were analysed descriptively displayed in the form of figures, tables and graphs. The results showed that palm waste extracts (pulp, leaves, fronds and fibres) with ethyl acetate and ethanol maceration solvents had very strong antibacterial potential, namely 20.14 ± 0.31 mm-25.52 ± 1.42 mm on V. harveyi bacteria and 20.41 ± 0.55 mm-25.00 ± 0.51 mm on V. parahaemolyticus bacteria. Palm extracts with n-hexane (>20 mm) and chloroform solvents generally have strong category antibacterial potential (10-20 mm), and palm extracts in water solvents have medium category potential (5-10 mm) against V. harveyi and V. parahemolyticus bacteria. The results of phytochemical tests on palm waste extracts with ethyl acetate and ethanol maceration solvents contain bioactive compounds of flavonoids, saponins, polyphenols and alkaloid tannins, steroids and triterpenoids. Palm extracts with n-hexane and chloroform solvents generally contain saponins, alkaloids, steroids and triterpenoids, while palm waste extracts with water solvents contain saponins.
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Affiliation(s)
- Nasmia Nasmia
- Department of Aquaculture, Faculty of Animal Husbandry and Fishery, Tadulako University, Palu, Central Sulawesi, Indonesia
| | - Novalina Serdiati
- Department of Aquaculture, Faculty of Animal Husbandry and Fishery, Tadulako University, Palu, Central Sulawesi, Indonesia
| | - Akbar Marzuki Tahya
- Department of Aquaculture, Faculty of Animal Husbandry and Fishery, Tadulako University, Palu, Central Sulawesi, Indonesia
| | - Muhammad Safir
- Department of Aquaculture, Faculty of Animal Husbandry and Fishery, Tadulako University, Palu, Central Sulawesi, Indonesia
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Goehlich H, Roth O, Sieber M, Chibani CM, Poehlein A, Rajkov J, Liesegang H, Wendling CC. Suboptimal environmental conditions prolong phage epidemics in bacterial populations. Mol Ecol 2023. [PMID: 37337348 DOI: 10.1111/mec.17050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 05/30/2023] [Accepted: 06/05/2023] [Indexed: 06/21/2023]
Abstract
Infections by filamentous phages, which are usually nonlethal to the bacterial cells, influence bacterial fitness in various ways. While phage-encoded accessory genes, for example virulence genes, can be highly beneficial, the production of viral particles is energetically costly and often reduces bacterial growth. Consequently, if costs outweigh benefits, bacteria evolve resistance, which can shorten phage epidemics. Abiotic conditions are known to influence the net-fitness effect for infected bacteria. Their impact on the dynamics and trajectories of host resistance evolution, however, remains yet unknown. To address this, we experimentally evolved the bacterium Vibrio alginolyticus in the presence of a filamentous phage at three different salinity levels, that is (1) ambient, (2) 50% reduction and (3) fluctuations between reduced and ambient. In all three salinities, bacteria rapidly acquired resistance through super infection exclusion (SIE), whereby phage-infected cells acquired immunity at the cost of reduced growth. Over time, SIE was gradually replaced by evolutionary fitter surface receptor mutants (SRM). This replacement was significantly faster at ambient and fluctuating conditions compared with the low saline environment. Our experimentally parameterized mathematical model explains that suboptimal environmental conditions, in which bacterial growth is slower, slow down phage resistance evolution ultimately prolonging phage epidemics. Our results may explain the high prevalence of filamentous phages in natural environments where bacteria are frequently exposed to suboptimal conditions and constantly shifting selections regimes. Thus, our future ocean may favour the emergence of phage-born pathogenic bacteria and impose a greater risk for disease outbreaks, impacting not only marine animals but also humans.
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Affiliation(s)
- Henry Goehlich
- GEOMAR, Helmholtz Centre for Ocean Research, Marine Evolutionary Ecology, Kiel, Germany
| | - Olivia Roth
- GEOMAR, Helmholtz Centre for Ocean Research, Marine Evolutionary Ecology, Kiel, Germany
- Marine Evolutionary Biology, Zoological Institute, Christian-Albrechts-University Kiel, Kiel, Germany
| | - Michael Sieber
- Max Planck Institute for Evolutionary Biology, Plön, Germany
| | - Cynthia M Chibani
- Institute for General Microbiology, Christian-Albrechts-University Kiel, Kiel, Germany
| | - Anja Poehlein
- Department of Genomic and Applied Microbiology, Georg-August University Göttingen, Göttingen, Germany
| | - Jelena Rajkov
- GEOMAR, Helmholtz Centre for Ocean Research, Marine Evolutionary Ecology, Kiel, Germany
| | - Heiko Liesegang
- Department of Genomic and Applied Microbiology, Georg-August University Göttingen, Göttingen, Germany
| | - Carolin C Wendling
- GEOMAR, Helmholtz Centre for Ocean Research, Marine Evolutionary Ecology, Kiel, Germany
- ETH Zürich, Institute of Integrative Biology, Zürich, Switzerland
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4
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Smith DS, Houck C, Lee A, Simmons TB, Chester ON, Esdaile A, Symes SJK, Giles DK. Polyunsaturated fatty acids cause physiological and behavioral changes in Vibrio alginolyticus and Vibrio fischeri. Microbiologyopen 2021; 10:e1237. [PMID: 34713610 PMCID: PMC8494716 DOI: 10.1002/mbo3.1237] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 09/08/2021] [Indexed: 11/06/2022] Open
Abstract
Vibrio alginolyticus and Vibrio (Aliivibrio) fischeri are Gram-negative bacteria found globally in marine environments. During the past decade, studies have shown that certain Gram-negative bacteria, including Vibrio species (cholerae, parahaemolyticus, and vulnificus) are capable of using exogenous polyunsaturated fatty acids (PUFAs) to modify the phospholipids of their membrane. Moreover, exposure to exogenous PUFAs has been shown to affect certain phenotypes that are important factors of virulence. The purpose of this study was to investigate whether V. alginolyticus and V. fischeri are capable of responding to exogenous PUFAs by remodeling their membrane phospholipids and/or altering behaviors associated with virulence. Thin-layer chromatography (TLC) analyses and ultra-performance liquid chromatography-electrospray ionization mass spectrometry (UPLC/ESI-MS) confirmed incorporation of all PUFAs into membrane phosphatidylglycerol and phosphatidylethanolamine. Several growth phenotypes were identified when individual fatty acids were supplied in minimal media and as sole carbon sources. Interestingly, several PUFAs acids inhibited growth of V. fischeri. Significant alterations to membrane permeability were observed depending on fatty acid supplemented. Strikingly, arachidonic acid (20:4) reduced membrane permeability by approximately 35% in both V. alginolyticus and V. fischeri. Biofilm assays indicated that fatty acid influence was dependent on media composition and temperature. All fatty acids caused decreased swimming motility in V. alginolyticus, while only linoleic acid (18:2) significantly increased swimming motility in V. fischeri. In summary, exogenous fatty acids cause a variety of changes in V. alginolyticus and V. fischeri, thus adding these bacteria to a growing list of Gram-negatives that exhibit versatility in fatty acid utilization and highlighting the potential for environmental PUFAs to influence phenotypes associated with planktonic, beneficial, and pathogenic associations.
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Affiliation(s)
- David S. Smith
- Department of Biology, Geology, and Environmental ScienceChattanoogaTennesseeUSA
| | - Carina Houck
- Department of Biology, Geology, and Environmental ScienceChattanoogaTennesseeUSA
| | - Allycia Lee
- Department of Chemistry and PhysicsThe University of Tennessee at ChattanoogaChattanoogaTennesseeUSA
| | - Timothy B. Simmons
- Department of Biology, Geology, and Environmental ScienceChattanoogaTennesseeUSA
| | - Olivia N. Chester
- Department of Biology, Geology, and Environmental ScienceChattanoogaTennesseeUSA
| | - Ayanna Esdaile
- Department of Biology, Geology, and Environmental ScienceChattanoogaTennesseeUSA
| | - Steven J. K. Symes
- Department of Chemistry and PhysicsThe University of Tennessee at ChattanoogaChattanoogaTennesseeUSA
| | - David K. Giles
- Department of Biology, Geology, and Environmental ScienceChattanoogaTennesseeUSA
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Hershberger PK, Stinson MET, Hall B, MacKenzie AH, Gregg JL, Richards W, Winton JR. Pacific herring Clupea pallasii are not susceptible to vibriosis from Vibrio anguillarum or V. ordalii under laboratory conditions. J Fish Dis 2020; 43:1607-1609. [PMID: 33022078 DOI: 10.1111/jfd.13274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/12/2020] [Accepted: 02/13/2020] [Indexed: 06/11/2023]
Affiliation(s)
- Paul K Hershberger
- Marrowstone Marine Field Station, U.S. Geological Survey, Western Fisheries Research Center, Nordland, WA, USA
| | | | - Betsy Hall
- Northwest Indian Fisheries Commission, Olympia, WA, USA
| | - Ashley H MacKenzie
- Marrowstone Marine Field Station, U.S. Geological Survey, Western Fisheries Research Center, Nordland, WA, USA
| | - Jacob L Gregg
- Marrowstone Marine Field Station, U.S. Geological Survey, Western Fisheries Research Center, Nordland, WA, USA
| | - William Richards
- Marrowstone Marine Field Station, U.S. Geological Survey, Western Fisheries Research Center, Nordland, WA, USA
| | - James R Winton
- U.S. Geological Survey, Western Fisheries Research Center, Seattle, WA, USA
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Van Hung N, Bossier P, Hong NTX, Ludeseve C, Garcia-Gonzalez L, Nevejan N, De Schryver P. Does Ralstonia eutropha, rich in poly-β hydroxybutyrate (PHB), protect blue mussel larvae against pathogenic vibrios? J Fish Dis 2019; 42:777-787. [PMID: 30850999 DOI: 10.1111/jfd.12981] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 01/23/2019] [Accepted: 01/25/2019] [Indexed: 06/09/2023]
Abstract
The natural amorphous polymer poly-β-hydroxybutyrate (PHB-A: lyophilized Ralstonia eutropha containing 75% PHB) was used as a biological agent to control bacterial pathogens of blue mussel (Mytilus edulis) larvae. The larvae were supplied with PHB-A at a concentration of 1 or 10 mg/L for 6 or 24 hr, followed by exposure to either the rifampicin-resistant pathogen Vibrio splendidus or Vibrio coralliilyticus at a concentration of 105 CFU/ml. Larvae pretreated 6 hr with PHB-A (1 mg/L) survived a Vibrio challenge better relative to 24 hr pretreatment. After 96 hr of pathogen exposure, the survival of PHB-A-treated mussel larvae was 1.41- and 1.76-fold higher than the non-treated larvae when challenged with V. splendidus and V. coralliilyticus, respectively. Growth inhibition of the two pathogens at four concentrations of the monomer β-HB (1, 5, 25 and 125 mM) was tested in vitro in LB35 medium, buffered at two different pH values (pH 7 and pH 8). The highest concentration of 125 mM significantly inhibited the pathogen growth in comparison to the lower levels. The effect of β-HB on the production of virulence factors in the tested pathogenic Vibrios revealed a variable pattern of responses.
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Affiliation(s)
- Nguyen Van Hung
- Laboratory of Aquaculture & Artemia Reference Center, Ghent University, Ghent, Belgium
- Research Institute for Aquaculture No.3, Nhatrang, Vietnam
| | - Peter Bossier
- Laboratory of Aquaculture & Artemia Reference Center, Ghent University, Ghent, Belgium
| | - Nguyen Thi X Hong
- Laboratory of Aquaculture & Artemia Reference Center, Ghent University, Ghent, Belgium
| | - Christine Ludeseve
- Laboratory of Aquaculture & Artemia Reference Center, Ghent University, Ghent, Belgium
| | | | - Nancy Nevejan
- Laboratory of Aquaculture & Artemia Reference Center, Ghent University, Ghent, Belgium
| | - Peter De Schryver
- Laboratory of Aquaculture & Artemia Reference Center, Ghent University, Ghent, Belgium
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7
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Peng T, Kan J, Lun J, Hu Z. Identification of novel sRNAs involved in oxidative stress response in the fish pathogen Vibrio alginolyticus by transcriptome analysis. J Fish Dis 2019; 42:277-291. [PMID: 30488970 DOI: 10.1111/jfd.12926] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 10/23/2018] [Accepted: 10/25/2018] [Indexed: 06/09/2023]
Abstract
Vibrio alginolyticus as an important pathogen in aquaculture can encounter the oxidative stress produced by the immune system during infection. Previous studies showed that sRNAs have important functions in response to oxidative stress in bacteria; however, less of sRNAs related to oxidative stress response were identified in V. alginolyticus. In this study, a total of 749 novel sRNAs were identified by RNA sequencing; among them, 128 sRNAs were up- or downregulated in response to oxidative stress. In addition, 1,870 genes exhibited variation on mRNA levels in oxidative stress response. By analysing the target genes of the sRNAs, we concluded that these sRNAs could regulate expressions of genes responsible for iron transport, catalase, GSH-dependent defence system, electron transferred and stress response. Moreover, the functions of the sRNAs are also seemed related to the pathogenicity in V. alginolyticus. Based on the results, we constructed the oxidative stress model in V. alginolyticus. This study provides us the first outlook of sRNAs function in oxidative stress response in V. alginolyticus. Furthermore, this study can help us to prevent and control this important opportunistic pathogen in aquaculture.
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Affiliation(s)
- Tao Peng
- Department of Biology, Shantou University, Shantou, China
| | - Jie Kan
- Department of Biology, Shantou University, Shantou, China
| | - Jingsheng Lun
- Department of Biology, Shantou University, Shantou, China
| | - Zhong Hu
- Department of Biology, Shantou University, Shantou, China
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Vu TTT, Alter T, Braun PG, Dittrich AJ, Huehn S. Inactivation of Vibrio sp. in pure cultures and mussel homogenates using high hydrostatic pressure. Lett Appl Microbiol 2018; 67:220-225. [PMID: 29962033 DOI: 10.1111/lam.13044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 06/27/2018] [Accepted: 06/27/2018] [Indexed: 11/29/2022]
Abstract
The objective of this study was to determine the effect of high hydrostatic pressure (HHP) on the inactivation of Vibrio sp. in pure cultures and mussel homogenates. Four Vibrio strains including V. alginolyticus, V. cholerae, V. parahaemolyticus and V. vulnificus were used. HHP treatments were performed with both pure Vibrio sp. cultures in alkaline peptone water (2% NaCl) and artificially inoculated mussel homogenates at pressure levels of 250, 350 and 450 MPa for 1 and 3 min at 25°C. Counts of Vibrio were determined before and after treatment using drop plating method. The effect of high pressure on the reduction level significantly differed among the respective Vibrio species. Vibrio vulnificus was the most susceptible species to HHP. To achieve a >5 log reduction in mussel homogenates, pressure treatment needs to be (i) 350-450 MPa for ≥1 min at 25°C for both V. alginolyticus and V. cholerae, (ii) 250 MPa for ≥3 min or 350-450 MPa for ≥1 min for V. vulnificus and (iii) 350 MPa for ≥3 min or 450 MPa for ≥1 min for V. parahaemolyticus. SIGNIFICANCE AND IMPACT OF THE STUDY High hydrostatic pressure (HHP) has been applied to inactivate spoilage and pathogenic micro-organisms in a variety of food products, including seafood. Vibrio sp. are frequently reported as the main cause of foodborne illness associated with consumption of raw or undercooked seafood particularly shellfish worldwide. To date, data on the inactivation of Vibrio sp. via HHP are still limited and most of the trials only investigated HHP application in oysters and clams. This study demonstrates the efficacy of HHP inactivating Vibrio sp. in both pure culture and mussel homogenates.
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Affiliation(s)
- T T T Vu
- Institute of Food Safety and Food Hygiene, Freie Universitaet Berlin, Berlin, Germany
| | - T Alter
- Institute of Food Safety and Food Hygiene, Freie Universitaet Berlin, Berlin, Germany
| | - P G Braun
- Institute of Food Hygiene, Leipzig University, Leipzig, Germany
| | - A J Dittrich
- Institute of Food Hygiene, Leipzig University, Leipzig, Germany
| | - S Huehn
- Life Sciences and Technology, Beuth University of Applied Sciences, Berlin, Germany
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Mello DF, Danielli NM, Curbani F, Pontinha VA, Suhnel S, Castro MAM, Medeiros SC, Wendt NC, Trevisan R, Magalhães ARM, Dafre AL. First evidence of viral and bacterial oyster pathogens in the Brazilian coast. J Fish Dis 2018; 41:559-563. [PMID: 29193213 DOI: 10.1111/jfd.12755] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 10/13/2017] [Accepted: 10/17/2017] [Indexed: 06/07/2023]
Affiliation(s)
- D F Mello
- Biochemistry Department, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - N M Danielli
- Biochemistry Department, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - F Curbani
- Biochemistry Department, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - V A Pontinha
- Aquaculture Department, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - S Suhnel
- Aquaculture Department, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - M A M Castro
- Aquaculture Department, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - S C Medeiros
- Aquaculture Department, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - N C Wendt
- Biochemistry Department, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - R Trevisan
- Aquaculture Department, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - A R M Magalhães
- Aquaculture Department, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - A L Dafre
- Biochemistry Department, Federal University of Santa Catarina, Florianopolis, SC, Brazil
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Burks DJ, Norris S, Kauffman KM, Joy A, Arevalo P, Azad RK, Wildschutte H. Environmental vibrios represent a source of antagonistic compounds that inhibit pathogenic Vibrio cholerae and Vibrio parahaemolyticus strains. Microbiologyopen 2017; 6:e00504. [PMID: 28857444 PMCID: PMC5635165 DOI: 10.1002/mbo3.504] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 05/05/2017] [Accepted: 05/16/2017] [Indexed: 12/16/2022] Open
Abstract
With the overuse of antibiotics, many pathogens including Vibrio cholerae and Vibrio parahaemolyticus have evolved multidrug resistance making treatment more difficult. While understanding the mechanisms that underlie pathogenesis is crucial, knowledge of bacterial interactions of V. cholerae and V. parahaemolyticus could provide insight to their susceptibility outside of the human host. Based on previous work showing competition among environmental strains, we predict that marine-derived bacteria should inhibit Vibrio pathogens and may be a source of unique antibiotic compounds. We tested a collection of 3,456 environmental Vibrio isolates from diverse habitats against a panel of V. cholerae and V. parahaemolyticus, and identified 102 strains that inhibited the growth of these pathogens. Phylogenetic analysis revealed that 40 pathogen-inhibiting strains were unique at the hsp60 gene sequence while 62 of the isolates were identical suggesting clonal groups. Genomic comparisons of ten strains revealed diversity even between clonal isolates and were identified as being closely related to known Vibrio crassostreae, Vibrio splendidus, and Vibrio tasmaniensis strains. Further analysis revealed multiple biosynthetic gene clusters within all sequenced genomes that encoded secondary metabolites with potential antagonistic activity. Thus, environmental vibrios represent a source of compounds that inhibit Vibrio pathogens.
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Affiliation(s)
- David J. Burks
- Department of Biological SciencesUniversity of North TexasDentonTexas
| | - Stephen Norris
- Department of Biological SciencesBowling Green State UniversityBowling GreenOhio
| | - Kathryn M. Kauffman
- Department of Civil and Environmental EngineeringMassachusetts Institute of TechnologyCambridgeMassachusetts
| | - Abigail Joy
- Department of Biological SciencesBowling Green State UniversityBowling GreenOhio
| | - Philip Arevalo
- Department of Civil and Environmental EngineeringMassachusetts Institute of TechnologyCambridgeMassachusetts
| | - Rajeev K. Azad
- Department of Biological SciencesUniversity of North TexasDentonTexas
- Department of MathematicsUniversity of North TexasDentonTexas
| | - Hans Wildschutte
- Department of Biological SciencesBowling Green State UniversityBowling GreenOhio
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Bluford J, Gauthier D, Colasanto M, Rhodes M, Vogelbein W, Haines A. Identification of virulence genes in Vibrio spp. isolates from the 2009 Bermuda reef fish mortality event. J Fish Dis 2017; 40:597-600. [PMID: 27553461 DOI: 10.1111/jfd.12532] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 06/16/2016] [Accepted: 06/17/2016] [Indexed: 06/06/2023]
Affiliation(s)
- J Bluford
- Department of Biology, Norfolk State University, Norfolk, VA, USA
| | - D Gauthier
- Department of Biological Sciences, Old Dominion University, Norfolk, VA, USA
| | - M Colasanto
- Department of Human Genetics, University of Utah, Salt Lake City, UT, USA
| | - M Rhodes
- Department of Aquatic Health Science, College of William and Mary, Virginia Institute of Marine Science, Williamsburg, VA, USA
| | - W Vogelbein
- Department of Aquatic Health Science, College of William and Mary, Virginia Institute of Marine Science, Williamsburg, VA, USA
| | - A Haines
- Department of Biology, Norfolk State University, Norfolk, VA, USA
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