201
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Asgarpoor D, Haghi F, Zeighami H. Detection and Molecular Characterization of Vibrio Parahaemolyticus in Shrimp Samples. ACTA ACUST UNITED AC 2018. [DOI: 10.2174/1874070701812010046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Background:Food safety has emerged as an important global issue with international trade and public health implications. Bacterial pathogens asVibrio parahaemolyticusrecognized as an important cause of foodborne diseases related to the consumption of raw, undercooked or mishandled seafood worldwide.Methods:A total of 70 individual wild shrimp samples were collected from shrimp retail outlets in Zanjan, Iran and investigated for the presence of potentially pathogenic strains ofV. parahaemolyticus.The shrimp samples were immediately homogenized and cultured on TCBS agarand subjected to confirmatory biochemical tests. Polymerase Chain Reaction (PCR) was performed for detection of total and pathogenicV. parahaemolyticusby amplification ofvp–toxR,tdhandtrhgenes.Results:The conventional method indicated that 16 (22.8%) of samples were positive forV. parahaemolyticus. However, PCR verified that only 12 (17.1%) shrimp samples were positive forV. parahaemolyticus.Of the 70 shrimp samples in our study, only 2 (2.8%)tdhand 1 (1.4%)trhpositive strains were identified.Conclusion:Detection oftdhand/ ortrhpositiveV. parahaemolyticusin shrimp marketed in Zanjan, Iran shows a probable risk for public health. Therefore, the reliable molecular methods for monitoring of potentially pathogenicV. parahaemolyticusare strongly recommended for the routine seafood examination.
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202
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Isolation, identification and characterization of the bioluminescent bacteria isolated from the blue swimmer crab Portunus pelagicus along Thondi Coast and virulence studies at high temperatures. Microb Pathog 2018; 117:232-236. [DOI: 10.1016/j.micpath.2018.02.046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 02/23/2018] [Accepted: 02/23/2018] [Indexed: 11/22/2022]
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203
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Abstract
This study was conducted to determine the prevalence of Vibrio spp. in retail seafood in Berlin, Germany. A total of 160 raw seafood samples from supermarkets and seafood shops, consisting of shrimp ( n = 80) and bivalves ( n = 80), were investigated for the presence of Vibrio spp. using the International Organization for Standardization ISO/TS 21872 method and a multiplex PCR. The overall prevalence of Vibrio spp. in retail seafood was 55% (95% CI: 47.2 to 62.8%). The prevalence of Vibrio spp. in shrimp was slightly higher than in bivalves (57.5 versus 52.5%); however, the difference was not statistically significant. Vibrio alginolyticus was the most prevalent species (35.6%), followed by Vibrio parahaemolyticus (27.5%), Vibrio cholerae (6.3%), and Vibrio vulnificus (0.6%). None of the V. parahaemolyticus ( n = 110) isolates encoded tdh/ trh genes, whereas all V. cholerae isolates ( n = 27) were lacking ctxA. Among the chilled samples ( n = 105), the prevalence of Vibrio spp. in unpacked samples was significantly higher than in packed samples ( P = 0.006). Among the packed samples ( n = 55), no significant difference in the prevalence of Vibrio spp. was observed between chilled or frozen products. The results of this study indicated a high prevalence of Vibrio spp. in retail seafood in Germany; positive samples were detected in all types of seafood investigated. The detection of tdh/ trh-negative V. parahaemolyticus isolates should not be neglected because of previous findings on pathogenic strains lacking these virulence markers. Even though thorough cooking might limit the risk of foodborne illness caused by Vibrio, potential cross-contamination during preparation or consumption of raw and undercooked seafood might represent a risk of Vibrio infections.
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Affiliation(s)
- Thi Thu Tra Vu
- 1 Institute of Food Safety and Food Hygiene, Freie Universität Berlin, 14163 Berlin, Germany
| | - Thomas Alter
- 1 Institute of Food Safety and Food Hygiene, Freie Universität Berlin, 14163 Berlin, Germany
| | - Stephan Huehn
- 1 Institute of Food Safety and Food Hygiene, Freie Universität Berlin, 14163 Berlin, Germany.,2 Life Sciences and Technology, Beuth University of Applied Sciences, 13353 Berlin, Germany
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204
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Temperature Effect Study on Growth and Survival of PathogenicVibrio parahaemolyticusin Jinjiang Oyster(Crassostrea rivularis)with Rapid Count Method. J FOOD QUALITY 2018. [DOI: 10.1155/2018/2060915] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The growth ofVibrio parahaemolyticus (V. parahaemolyticus)in oysters during postharvest storage increases the possibility of its infection in humans. In this work, to investigate the growth or survival profiles in different media, pathogenicV. parahaemolyticusin APW, Jinjiang oyster (JO,Crassostrea rivularis) slurry, and live JO were studied under different temperatures. All the strain populations were counted through our double-layer agar plate (DLAP) method. In APW, the pathogenicV. parahaemolyticusshowed continuous growth under 15, 25, and 35°C, while a decline in behavior was displayed under 5°C. The similar survival trend of pathogenicV. parahaemolyticusin JO slurry and live JO was observed under 5, 25, and 35°C, except the delayed growth or decline profile compared to APW. Under 15°C, they displayed decline and growth profile in JO slurry and live JO, respectively. These results indicate the different sensitivity of pathogenicV. parahaemolyticusin these matrices to temperature variation. Furthermore, nonpathogenicV. parahaemolyticusdisplayed little difference in survival profiles when inoculated in live JO under corresponding temperatures. The results indicate that inhibition or promotion effect could be regulated under different storage temperature for both pathogenic and nonpathogenic strains. Besides, the DLAP method showed the obvious quickness and efficiency during the bacteria count.
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205
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Leão JM, Lozano-Leon A, Giráldez J, Vilariño Ó, Gago-Martínez A. Preliminary Results on the Evaluation of the Occurrence of Tetrodotoxin Associated to Marine Vibrio spp. in Bivalves from the Galician Rias (Northwest of Spain). Mar Drugs 2018; 16:E81. [PMID: 29509715 PMCID: PMC5867625 DOI: 10.3390/md16030081] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 02/23/2018] [Accepted: 03/01/2018] [Indexed: 01/01/2023] Open
Abstract
Tetrodotoxins (TTX) are a potent group of natural neurotoxins putatively produced by symbiotic microorganisms and affecting the aquatic environment. These neurotoxins have been recently found in some species of bivalves and gastropods along the European Coasts (Greece, UK, and The Netherlands) linked to the presence of high concentrations of Vibrio, in particular Vibrio parahaemolyticus. This study is focused on the evaluation of the presence of Vibrio species and TTX in bivalves (mussels, oysters, cockles, clams, scallops, and razor clams) from Galician Rias (northwest of Spain). The detection and isolation of the major Vibrio spp. and other enterobacterial populations have been carried out with the aim of screening for the presence of the pathways genes, poliketide synthase (PKS) and non-ribosomal peptide synthetase (NRPS) possibly involved in the biosynthesis of these toxins. Samples containing Vibrio spp. were analyzed by biochemical (API20E-galery) and genetic tests (PCR-RT). These samples were then screened for TTX toxicity by a neuroblastoma cell-based assay (N2a) and the presence of TTX was further confirmed by LC-MS/MS. TTX was detected in two infaunal samples. This is the first confirmation of the presence of TTX in bivalve molluscs from the Galician Rias.
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Affiliation(s)
- Jose Manuel Leão
- Department Analytical and Food Chemistry, University of Vigo, 36310 Vigo, Spain.
- EU Reference Laboratory for Marine Biotoxins, 36310 Vigo, Spain.
| | - Antonio Lozano-Leon
- Department Analytical and Food Chemistry, University of Vigo, 36310 Vigo, Spain.
- Laboratory ASMECRUZ, 36939 Bueu, Pontevedra, Spain.
| | - Jorge Giráldez
- Department Analytical and Food Chemistry, University of Vigo, 36310 Vigo, Spain.
| | - Óscar Vilariño
- Department Analytical and Food Chemistry, University of Vigo, 36310 Vigo, Spain.
- EU Reference Laboratory for Marine Biotoxins, 36310 Vigo, Spain.
| | - Ana Gago-Martínez
- Department Analytical and Food Chemistry, University of Vigo, 36310 Vigo, Spain.
- EU Reference Laboratory for Marine Biotoxins, 36310 Vigo, Spain.
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206
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Zhong Q, Tian J, Wang J, Fang X, Liao Z. iTRAQ-based proteomic analysis of the viable but nonculturable state of Vibrio parahaemolyticus ATCC 17802 induced by food preservative and low temperature. Food Control 2018. [DOI: 10.1016/j.foodcont.2017.10.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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207
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Rapid Detection of Vibrio parahaemolyticus in Shellfish by Real-Time Recombinase Polymerase Amplification. FOOD ANAL METHOD 2018. [DOI: 10.1007/s12161-018-1188-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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208
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Chang SC, Lee CY. OpaR and RpoS are positive regulators of a virulence factor PrtA in Vibrio parahaemolyticus. Microbiology (Reading) 2018; 164:221-231. [DOI: 10.1099/mic.0.000591] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Affiliation(s)
- San-Chi Chang
- Department of Agricultural Chemistry, Microbiology Laboratory, National Taiwan University, Taipei, Taiwan, ROC
| | - Chia-Yin Lee
- Department of Agricultural Chemistry, Microbiology Laboratory, National Taiwan University, Taipei, Taiwan, ROC
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209
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Wang R, Sun L, Wang Y, Deng Y, Fang Z, Liu Y, Liu Y, Sun D, Deng Q, Gooneratne R. Growth and Hemolysin Production Behavior of Vibrio parahaemolyticus in Different Food Matrices. J Food Prot 2018; 81:246-253. [PMID: 29360402 DOI: 10.4315/0362-028x.jfp-17-308] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The growth and hemolytic activity profiles of two Vibrio parahaemolyticus strains (ATCC 17802 and ATCC 33847) in shrimp, oyster, freshwater fish, pork, chicken, and egg fried rice were investigated, and a prediction system for accurate microbial risk assessment was developed. The two V. parahaemolyticus strains displayed a similar growth and hemolysin production pattern in the foods at 37°C. Growth kinetic parameters showed that V. parahaemolyticus displayed higher maximum specific growth rate and shorter lag time values in shrimp > freshwater fish > egg fried rice> oyster > chicken > pork. Notably, there was a similar number of V. parahaemolyticus in all of these samples at the stationary phase. The hemolytic activity of V. parahaemolyticus in foods increased linearly with time ( R2 > 0.97). The rate constant ( K) of hemolytic activity was higher in shrimp, oyster, freshwater fish, and egg fried rice than in pork and chicken. Significantly higher hemolytic activity of V. parahaemolyticus was evident in egg fried rice > shrimp > freshwater fish > chicken > oyster > pork. The above-mentioned results indicate that V. parahaemolyticus could grow well regardless of the food type and that contrary to current belief, it displayed a higher hemolytic activity in some nonseafood products (freshwater fish, egg fried rice, and chicken) than in one seafood (oyster). The prediction system consisting of the growth model and hemolysin production algorithm reported here will fill a gap in predictive microbiology and improve significantly the accuracy of microbial risk assessment of V. parahaemolyticus.
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Affiliation(s)
- Rundong Wang
- 1 College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution 524088, People's Republic of China
| | - Lijun Sun
- 1 College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution 524088, People's Republic of China
| | - Yaling Wang
- 1 College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution 524088, People's Republic of China
| | - Yijia Deng
- 1 College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution 524088, People's Republic of China
| | - Zhijia Fang
- 1 College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution 524088, People's Republic of China
| | - Yang Liu
- 2 National Marine Products Quality Supervision & Inspection Center, Zhanjiang 524000, People's Republic of China; and
| | - Ying Liu
- 1 College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution 524088, People's Republic of China
| | - Dongfang Sun
- 1 College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution 524088, People's Republic of China
| | - Qi Deng
- 1 College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution 524088, People's Republic of China
| | - Ravi Gooneratne
- 3 Centre for Food Research and Innovation, Department of Wine, Food and Molecular Biosciences, Lincoln University, Lincoln 7647, Canterbury, New Zealand
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210
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Acosta-Smith E, Viveros-Jiménez K, Canizalez-Román A, Reyes-Lopez M, Bolscher JGM, Nazmi K, Flores-Villaseñor H, Alapizco-Castro G, de la Garza M, Martínez-Garcia JJ, Velazquez-Roman J, Leon-Sicairos N. Bovine Lactoferrin and Lactoferrin-Derived Peptides Inhibit the Growth of Vibrio cholerae and Other Vibrio species. Front Microbiol 2018; 8:2633. [PMID: 29375503 PMCID: PMC5768654 DOI: 10.3389/fmicb.2017.02633] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 12/15/2017] [Indexed: 12/18/2022] Open
Abstract
Vibrio is a genus of Gram-negative bacteria, some of which can cause serious infectious diseases. Vibrio infections are associated with the consumption of contaminated food and classified in Vibrio cholera infections and non-cholera Vibrio infections. In the present study, we investigate whether bovine lactoferrin (bLF) and several synthetic peptides corresponding to bLF sequences, are able to inhibit the growth or have bactericidal effect against V. cholerae and other Vibrio species. The antibacterial activity of LF and LF-peptides was assessed by kinetics of growth or determination of colony forming unit in bacteria treated with the peptides and antibiotics. To get insight in the mode of action, the interaction between bLF and bLF-peptides (coupled to FITC) and V. cholera was evaluated. The damage of effector-induced bacterial membrane permeability was measured by inclusion of the fluorescent dye propidium iodide using flow cytometry, whereas the bacterial ultrastructural damage in bacteria treated was observed by transmission electron microscopy. The results showed that bLF and LFchimera inhibited the growth of the V. cholerae strains; LFchimera permeabilized the bacteria which membranes were seriously damaged. Assays with a multidrug-resistant strain of Vibrio species indicated that combination of sub-lethal doses of LFchimera with ampicillin or tetracycline strongly reduced the concentration of the antibiotics to reach 95% growth inhibition. Furthermore, LFchimera were effective to inhibit the V. cholerae counts and damage due to this bacterium in a model mice. These data suggest that LFchimera and bLF are potential candidates to combat the V. cholerae and other multidrug resistant Vibrio species.
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Affiliation(s)
- Erika Acosta-Smith
- Programa Regional Para el Doctorado en Biotecnología, Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Sinaloa, Culiacán, Mexico
| | - Karina Viveros-Jiménez
- Centro de Investigación Aplicada para la Salud Pública (CIASaP), Facultad de Medicina, Universidad Autónoma de Sinaloa, Culiacán, Mexico
| | - Adrian Canizalez-Román
- Centro de Investigación Aplicada para la Salud Pública (CIASaP), Facultad de Medicina, Universidad Autónoma de Sinaloa, Culiacán, Mexico.,Hospital de la Mujer, Servicios de Salud de Sinaloa, Culiacán, Mexico
| | - Magda Reyes-Lopez
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico, Mexico
| | - Jan G M Bolscher
- Department of Oral Biochemistry ACTA, University of Amsterdam and VU University, Amsterdam, Netherlands
| | - Kamran Nazmi
- Department of Oral Biochemistry ACTA, University of Amsterdam and VU University, Amsterdam, Netherlands
| | - Hector Flores-Villaseñor
- Centro de Investigación Aplicada para la Salud Pública (CIASaP), Facultad de Medicina, Universidad Autónoma de Sinaloa, Culiacán, Mexico.,Laboratorio Estatal de Salud Pública de Sinaloa, Culiacán, Mexico
| | - Gerardo Alapizco-Castro
- Centro de Investigación Aplicada para la Salud Pública (CIASaP), Facultad de Medicina, Universidad Autónoma de Sinaloa, Culiacán, Mexico
| | - Mireya de la Garza
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico, Mexico
| | - Jesús J Martínez-Garcia
- Centro de Investigación Aplicada para la Salud Pública (CIASaP), Facultad de Medicina, Universidad Autónoma de Sinaloa, Culiacán, Mexico.,Departamento de Investigación, Hospital Pediátrico de Sinaloa, Culiacán, Mexico
| | - Jorge Velazquez-Roman
- Centro de Investigación Aplicada para la Salud Pública (CIASaP), Facultad de Medicina, Universidad Autónoma de Sinaloa, Culiacán, Mexico
| | - Nidia Leon-Sicairos
- Centro de Investigación Aplicada para la Salud Pública (CIASaP), Facultad de Medicina, Universidad Autónoma de Sinaloa, Culiacán, Mexico.,Departamento de Investigación, Hospital Pediátrico de Sinaloa, Culiacán, Mexico
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211
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Seafood spoilage microbiota and associated volatile organic compounds at different storage temperatures and packaging conditions. Int J Food Microbiol 2018; 280:87-99. [PMID: 29478710 DOI: 10.1016/j.ijfoodmicro.2017.12.029] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 12/21/2017] [Accepted: 12/30/2017] [Indexed: 01/12/2023]
Abstract
Seafood comprising of both vertebrate and invertebrate aquatic organisms are nutritious, rich in omega-3 fatty acids, essential vitamins, proteins, minerals and form part of healthy diet. However, despite the health and nutritional benefits, seafood is highly perishable. Spoilage of seafood could be as a result of microbial activity, autolysis or chemical oxidation. Microbial activity constitutes more spoilage than others. Spoilage bacteria are commonly Gram negative and produce off odours and flavours in seafood as a result of their metabolic activities. Storage temperature, handling and packaging conditions affect microbial growth and thus the shelf-life of seafood. Due to the complexity of the microbial communities in seafood, culture dependent methods of detection may not be useful, hence the need for culture independent methods are necessary to understand the diversity of microbiota and spoilage process. Similarly, the volatile organic compounds released by spoilage bacteria are not fully understood in some seafood. This review therefore highlights current knowledge and understanding of seafood spoilage microbiota, volatile organic compounds, effects of storage temperature and packaging conditions on quality of seafood.
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212
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Ng C, Goh SG, Saeidi N, Gerhard WA, Gunsch CK, Gin KYH. Occurrence of Vibrio species, beta-lactam resistant Vibrio species, and indicator bacteria in ballast and port waters of a tropical harbor. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 610-611:651-656. [PMID: 28822933 DOI: 10.1016/j.scitotenv.2017.08.099] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 08/10/2017] [Accepted: 08/10/2017] [Indexed: 06/07/2023]
Abstract
Ballast water discharges are potential sources for the spread of invasive and pathogenic aquatic organisms. Ballast waters from six ships docked in the Port of Singapore were tested to determine if indictor organisms fell within proposed standards for ballast water discharge according to regulation D-2 of the Ballast Water Management Convention (BWMC) guidelines. Vibrio species were cultured on media supplemented with beta-lactam antibiotics to determine the presence of antibiotic resistant Vibrio species in the ballast waters of these vessels. Indicator organisms were quantified using culture media Colilert-18 and Enterolert in ballast waters of six ships docked in a tropical harbor, with uptake from different geographical locations. Of the six ships, one had ballast water originating from the Persian Gulf, another from the East China Sea, and four from the South China Sea. Two of the six ships which carried ballast waters from the East China Sea and the South China Sea did not meet the D-2 stipulated requirements of the Ballast Water Management Convention for indicator organisms with Enterococci values more than three times higher than the acceptable limit of <100CFU/100mL. Using the most-probable-number-PCR (MPN-PCR) method for Vibrio species detection, non-toxigenic species of V. cholerae (2 MPN/100mL), Vibrio vulnificus (>110 MPN/100mL), and Vibrio parahaemolyticus (2 to >110 MPN/100mL) were detected in at least one of six ballast water samples. Using thiosulfate-citrate-bile salts-sucrose agar (TCBS) supplemented with beta-lactam antibiotics (meropenem, ceftazidime), 11 different Vibrio species, exhibiting resistance to beta-lactam antibiotics were isolated; with Vibrio campbellii (44%) and Vibrio alginolyticus (15%) the most detected antibiotic resistant Vibrio species. A practical approach of prioritized screening of high-risk vessels should be conducted to ensure that the water quality meets D-2 standards prior to discharge.
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Affiliation(s)
- Charmaine Ng
- National University of Singapore, Department of Civil and Environmental Engineering, Engineering Drive 1, T-lab Building, TL08-03, 117576, Singapore
| | - Shin Giek Goh
- National University of Singapore, Department of Civil and Environmental Engineering, Engineering Drive 1, T-lab Building, TL08-03, 117576, Singapore
| | - Nazanin Saeidi
- National University of Singapore, Department of Civil and Environmental Engineering, Engineering Drive 1, T-lab Building, TL08-03, 117576, Singapore
| | - William A Gerhard
- Duke University, Department of Civil and Environmental Engineering, 100 Hudson Hall, Durham, NC 27708-0287, United States
| | - Claudia K Gunsch
- Duke University, Department of Civil and Environmental Engineering, 100 Hudson Hall, Durham, NC 27708-0287, United States
| | - Karina Yew Hoong Gin
- National University of Singapore, Department of Civil and Environmental Engineering, Engineering Drive 1, T-lab Building, TL08-03, 117576, Singapore; NUS Environmental Research Institute (NERI), Engineering Drive 1, T-lab Building, #02-01, 117576, Singapore.
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213
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Development of a rapid immunochromatographic assay to detect contamination of raw oysters with enteropathogenic Vibrio parahaemolyticus. Int J Food Microbiol 2018; 264:16-24. [DOI: 10.1016/j.ijfoodmicro.2017.10.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 10/12/2017] [Accepted: 10/12/2017] [Indexed: 11/20/2022]
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214
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Karunasagar I, Maiti B, Kumar BK. Molecular Methods to Study Vibrio parahaemolyticus and Vibrio vulnificus From Atypical Environments. J Microbiol Methods 2018. [DOI: 10.1016/bs.mim.2018.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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215
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Pang B, Ding X, Wang G, Zhao C, Xu Y, Fu K, Sun J, Song X, Wu W, Liu Y, Song Q, Hu J, Li J, Mu Y. Rapid and Quantitative Detection of Vibrio parahemolyticus by the Mixed-Dye-Based Loop-Mediated Isothermal Amplification Assay on a Self-Priming Compartmentalization Microfluidic Chip. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:11312-11319. [PMID: 29198118 DOI: 10.1021/acs.jafc.7b03655] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Vibrio parahemolyticus (VP) mostly isolated from aquatic products is one of the major causes of bacterial food-poisoning events worldwide, which could be reduced using a promising on-site detection method. Herein, a rapid and quantitative method for VP detection was developed by applying a mixed-dye-loaded loop-mediated isothermal amplification (LAMP) assay on a self-priming compartmentalization (SPC) microfluidic chip, termed on-chip mixed-dye-based LAMP (CMD-LAMP). In comparison to conventional approaches, CMD-LAMP was advantageous on the limit of detection, which reached down to 1 × 103 CFU/mL in food-contaminated samples without the pre-enrichment of bacteria. Additionally, as a result of the use of a mixed dye and SPC chip, the quantitative result could be easily acquired, avoiding the requirement of sophisticated instruments and tedious operation. Also, CMD-LAMP was rapid and cost-effective. Conclusively, CMD-LAMP has great potential in realizing the on-site quantitative analysis of VP for food safety.
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Affiliation(s)
- Bo Pang
- Department of Hygienic Inspection, School of Public Health, Jilin University , Changchun, Jilin 130021, People's Republic of China
| | - Xiong Ding
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University , Hangzhou, Zhejiang 310058, People's Republic of China
| | - Guoping Wang
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University , Hangzhou, Zhejiang 310058, People's Republic of China
| | - Chao Zhao
- Department of Hygienic Inspection, School of Public Health, Jilin University , Changchun, Jilin 130021, People's Republic of China
| | - Yanan Xu
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University , Hangzhou, Zhejiang 310058, People's Republic of China
| | - Kaiyue Fu
- Department of Hygienic Inspection, School of Public Health, Jilin University , Changchun, Jilin 130021, People's Republic of China
| | - Jingjing Sun
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University , Hangzhou, Zhejiang 310058, People's Republic of China
| | - Xiuling Song
- Department of Hygienic Inspection, School of Public Health, Jilin University , Changchun, Jilin 130021, People's Republic of China
| | - Wenshuai Wu
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University , Hangzhou, Zhejiang 310058, People's Republic of China
| | - Yushen Liu
- Department of Hygienic Inspection, School of Public Health, Jilin University , Changchun, Jilin 130021, People's Republic of China
| | - Qi Song
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University , Hangzhou, Zhejiang 310058, People's Republic of China
| | - Jiumei Hu
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University , Hangzhou, Zhejiang 310058, People's Republic of China
| | - Juan Li
- Department of Hygienic Inspection, School of Public Health, Jilin University , Changchun, Jilin 130021, People's Republic of China
| | - Ying Mu
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University , Hangzhou, Zhejiang 310058, People's Republic of China
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216
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Yang Y, Xie J, Li H, Tan S, Chen Y, Yu H. Prevalence, Antibiotic Susceptibility and Diversity of Vibrio parahaemolyticus Isolates in Seafood from South China. Front Microbiol 2017; 8:2566. [PMID: 29326682 PMCID: PMC5742333 DOI: 10.3389/fmicb.2017.02566] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 12/11/2017] [Indexed: 12/22/2022] Open
Abstract
Vibrio parahaemolyticus is a leading cause of foodborne infections in China and a threat to human health worldwide. The main objective of this study is to determine the prevalence and characteristic of V. parahaemolyticus isolates in fish, oyster and shrimp samples from the South China domestic consumer market. To accomplish this, we examined 504 seafood samples from 11 provinces of China. The prevalence rates were 9.38, 30.36, and 25.60%, respectively. In summer (33.33%), the prevalence of V. parahaemolyticus was more common than that detected in the winter (14.01%). In addition, we identified 98 V. parahaemolyticus strains. The antimicrobial resistance trends of our seafood isolates to 15 antimicrobial agents revealed that major isolates were resistant to ampicillin (79.59%). Furthermore, 68.38% of the isolates were identified as being multidrug resistance. The prevalence of tdh or trh genes among the isolates was 8.16 and 12.24%, respectively. ERIC-PCR and multilocus sequence typing (MLST) results enabled classification of the isolates (n = 98) into different clusters, revealing genetic variation and relatedness among the isolates. Thus, our findings demonstrate the prevalence of V. parahaemolyticus in a variety of common seafood consumed domestically in China and provides insights into the dissemination of antibiotic-resistant strains, which should improve our microbiological risk assessment knowledge associated with V. parahaemolyticus in seafoods.
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Affiliation(s)
- Ying Yang
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Jiafang Xie
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Hua Li
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Shuwen Tan
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Yanfeng Chen
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Hui Yu
- School of Life Science and Engineering, Foshan University, Foshan, China
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217
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Yang JH, Mok JS, Jung YJ, Lee KJ, Kwon JY, Park K, Moon SY, Kwon SJ, Ryu AR, Lee TS. Distribution and antimicrobial susceptibility of Vibrio species associated with zooplankton in coastal area of Korea. MARINE POLLUTION BULLETIN 2017; 125:39-44. [PMID: 28781188 DOI: 10.1016/j.marpolbul.2017.07.054] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 07/22/2017] [Accepted: 07/22/2017] [Indexed: 06/07/2023]
Abstract
Vibrio parahaemolyticus and V. vulnificus are the most common pathogens causing seafood-borne illnesses in Korea. This study determines the abundance and antimicrobial resistance of pathogenic Vibrio species in seawater and zooplankton samples from the Geoje Island coast in Korea, which is an important area for coastal fisheries, the fishing industry, and tourism. The two Vibrio species were detected more in mesozooplankton samples than in seawater samples. V. parahaemolyticus isolates showed greater resistance than those of V. vulnificus for antimicrobials. Of V. parahaemolyticus isolates, 93.3% exhibited resistance to three or more antimicrobial agents. Conversely, more than 80% of V. vulnificus isolates showed susceptibility to all antimicrobials examined, with the exception of rifampicin. Our findings show that strong antimicrobial resistance of V. parahaemolyticus in the surveyed area was exposed to conventionally used antibiotics, therefore necessitating proper surveillance programs for the monitoring of antimicrobial resistance patterns in seawater bodies and aquatic animals.
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Affiliation(s)
- Ji Hye Yang
- Southeast Sea Fisheries Research Institute, National Institute of Fisheries Science, Tongyeong 53085, Republic of Korea
| | - Jong Soo Mok
- Food Safety and Processing Research Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea.
| | - Yeoun Joong Jung
- Southeast Sea Fisheries Research Institute, National Institute of Fisheries Science, Tongyeong 53085, Republic of Korea
| | - Ka Jeong Lee
- Southeast Sea Fisheries Research Institute, National Institute of Fisheries Science, Tongyeong 53085, Republic of Korea
| | - Ji Young Kwon
- Food Safety and Processing Research Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea
| | - Kunbawui Park
- Food Safety and Processing Research Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea
| | - Seong Yong Moon
- Southeast Sea Fisheries Research Institute, National Institute of Fisheries Science, Tongyeong 53085, Republic of Korea
| | - Soon Jae Kwon
- Southeast Sea Fisheries Research Institute, National Institute of Fisheries Science, Tongyeong 53085, Republic of Korea
| | - A Ra Ryu
- Southeast Sea Fisheries Research Institute, National Institute of Fisheries Science, Tongyeong 53085, Republic of Korea
| | - Tea Seek Lee
- Food Safety and Processing Research Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea
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218
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Fu S, Tian H, Wei D, Zhang X, Liu Y. Delineating the Origins of Vibrio parahaemolyticus Isolated from Outbreaks of Acute Hepatopancreatic Necrosis Disease in Asia by the Use of Whole Genome Sequencing. Front Microbiol 2017; 8:2354. [PMID: 29234316 PMCID: PMC5712426 DOI: 10.3389/fmicb.2017.02354] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 11/15/2017] [Indexed: 12/04/2022] Open
Abstract
Acute hepatopancreatic necrosis disease (AHPND) is an emerging penaeid shrimp disease caused by Vibrio parahaemolyticus. Although V. parahaemolyticus has been isolated and sequenced from several Asia countries, the epidemiological links among the AHPND outbreaks in different locations remain unclear. In this study, we sequenced the genomes of nine strains isolated in China between 2014 and 2016 from four sampling sites in three provinces. Analysis of single nucleotide polymorphisms (SNPs) among the nine isolates yielded an average of 35,519 SNPs per isolate, ranging from 35,001 SNPs to 35,889 SNPs relative to the reference genome FDA_R31. To capture the genetic diversity of V. parahaemolyticus in Asia and Mexico, 93 published genomes were included in the analysis. Phylogenetic analysis divided the 102 isolates into 5 clades from I to V, with the majority belonging to Clade I and Clade II. There were at least 12 independent AHPND related clones. The results indicated that the clones recovered from AHPND affected shrimps in Asia were genomically distinct in various locations and there are no epidemiological links between Asian and Mexico outbreaks. Core genome analysis of pVA-1-like plasmid sequences from V. parahaemolyticus revealed that the AHPND-associated plasmids were also genetically diverse. Homology analysis of the publicly available microbial genomes showed that the conjugative transfer gene clusters of the plasmids in AHPND-causing strains were found in 27 V. parahaemolyticus strains and several other Vibrio sp. from 10 countries including five strains isolated prior to the first identification of AHPND outbreak, indicating that the backbone of AHPND- associated plasmid was widely distributed around the globe. In conclusion, at least 11 origins of AHPND outbreaks were identified; as AHPND-causing plasmid is widely distributed globally, prevention strategies for AHPND need to focus on microbial management in the aquaculture system and establishing ecological friendly aquaculture practices instead of detection of plasmid alone. However, more strains from other Asia countries as well as Mexico need to be included for whole genome sequencing (WGS) for reconstruction of the global transmission and the spread patterns of AHPND.
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Affiliation(s)
- Songzhe Fu
- College of Marine Technology and Environment, Dalian Ocean University, Dalian, China.,Nanchang Center for Disease Control and Prevention, Nanchang, China
| | - Huiqin Tian
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Dawei Wei
- College of Life Science, Northwest Agriculture and Forestry University, Yangling, China
| | - Xiaojun Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Ying Liu
- College of Marine Technology and Environment, Dalian Ocean University, Dalian, China.,Nantong R&D Center, Chinese Academy of Sciences, Nantong, China
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219
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Feng B, Liu H, Wang M, Sun X, Pan Y, Zhao Y. Diversity analysis of acute hepatopancreatic necrosis disease-positive Vibrio parahaemolyticus strains. AQUACULTURE AND FISHERIES 2017. [DOI: 10.1016/j.aaf.2017.10.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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220
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Han F, Gu RR, Shen XS, Chen YG, Tian LL, Zhou WF, Cai YQ. Detection of Total and Pathogenic Vibrio parahaemolyticus in Shellfish Growing along the South Yellow Sea and the East China Sea. J Food Prot 2017; 80:1882-1889. [PMID: 29039708 DOI: 10.4315/0362-028x.jfp-17-080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 06/07/2017] [Indexed: 11/11/2022]
Abstract
This study was conducted to monitor the densities of total and pathogenic Vibrio parahaemolyticus in 300 samples of nine shellfish species harvested from the coasts of the South Yellow Sea and the East China Sea (N 23° to 34°, E 116° to 124°), People's Republic of China, between May and October 2015. Total V. parahaemolyticus densities were measured, and V. parahaemolyticus isolates were biochemically identified with probes for the thermostable direct hemolysin gene (tdh) and the thermostable direct hemolysin-related hemolysin gene (trh). We found that 202 of the 300 samples were positive for V. parahaemolyticus from all the sites: 58 of the 100 samples from the Fujian province, 71 of the 100 samples from the Zhejiang province, and 73 of the 100 samples from the Jiangsu province. In most (170) of the 300 samples, V. parahaemolyticus densities were 0.3 to 10 most probable number (MPN)/g; five lots exceeded 110 MPN/g, and two lots were estimated at 110 MPN/g. Among the 202 V. parahaemolyticus strains, only one was trh positive. Densities of V. parahaemolyticus in these shellfish were temperature dependent, with highest densities in June and July. Among the nine mollusk species, V. parahaemolyticus was most abundant in the agemaki clam (Sinonovacula constricta). The highest and lowest V. parahaemolyticus prevalences were found in oriental cyclina (Cyclina sinensis, 93.8%) and mussels (Mytilus edulis, 28.1%), respectively. Overall, although V. parahaemolyticus is widely distributed in marine environments, the density of V. parahaemolyticus was low and the prevalence of the main virulence factor was very low in shellfish along the coasts of the South Yellow Sea and East China Sea, which is important from a public health perspective. Data presented here will be useful for correlational research and can be utilized for developing risk management plans that establish food safety guidelines for V. parahaemolyticus in Chinese shellfish.
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Affiliation(s)
- Feng Han
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, People's Republic of China.,Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, People's Republic of China
| | - Run-Run Gu
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, People's Republic of China.,Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, People's Republic of China
| | - Xiao-Sheng Shen
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, People's Republic of China.,Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, People's Republic of China
| | - Yuan-Ge Chen
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, People's Republic of China
| | - Liang-Liang Tian
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, People's Republic of China.,Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, People's Republic of China
| | - Wei-Feng Zhou
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, People's Republic of China
| | - You-Qiong Cai
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, People's Republic of China.,Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, People's Republic of China
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221
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Comparison of Different Methods to Identify tdh-Positive Pathogenic Vibrio parahaemolyticus Isolates. Curr Microbiol 2017; 75:1-5. [DOI: 10.1007/s00284-017-1332-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 08/10/2017] [Indexed: 10/18/2022]
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222
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Rosa JVD, Conceição NVD, Perez I, Timm CD. FORMAÇÃO DE BIOFILME APÓS ESTRESSE SUBLETAL POR Vibrio parahaemolyticus ISOLADOS DE CAMARÃO-ROSA (Farfantepenaeus paulensis). CIÊNCIA ANIMAL BRASILEIRA 2017. [DOI: 10.1590/1089-6891v18e-44246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Resumo O consumo de frutos do mar, como o camarão-rosa, contaminados com V. parahaemolyticus pode causar gastrenterite aguda. O objetivo deste trabalho foi verificar a capacidade de V. parahaemolyticus isolados de camarões provenientes do estuário da Lagoa dos Patos formarem biofilme após exposição a diferentes tipos de estresse subletal. Para obtenção das amostras, foram realizadas 12 coletas de Farfantepenaeus paulensis, durante o período de safra de 2016. As amostras foram analisadas quanto à presença de V. parahaemolyticus. As cepas foram avaliadas quanto à capacidade de produção de biofilme em placas de microtitulação, tanto antes como após serem submetidas a diferentes tipos de estresse subletal. V. parahaemolyticus foi isolado de 16,66% (2/12) das amostras. Uma das duas cepas isoladas foi capaz de formar biofilme, sendo classificada como fraca formadora de biofilme, a outra foi classificada como não formadora de biofilme. Nenhuma das cepas alterou sua capacidade de formar biofilme quando submetida aos estresses de 4 ºC e 20 ºC; contudo, com relação aos estresses de 42 ºC e pH ácido, cada cepa respondeu de uma maneira diferente.
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223
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Thickman JD, Gobler CJ. The ability of algal organic matter and surface runoff to promote the abundance of pathogenic and non-pathogenic strains of Vibrio parahaemolyticus in Long Island Sound, USA. PLoS One 2017; 12:e0185994. [PMID: 29020074 PMCID: PMC5636122 DOI: 10.1371/journal.pone.0185994] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 09/22/2017] [Indexed: 01/22/2023] Open
Abstract
Food safety is a major concern in the shellfish industry, as severe illness can result from consuming shellfish that have accumulated waterborne pathogens. Shellfish harvesting areas are typically monitored for indicator bacteria such as fecal coliforms that serve as proxies for enteric pathogens although these indicators have shown little relation to some naturally occurring pathogenic bacteria such as Vibrio parahaemolyticus. To examine the dynamics and ecology of pathogenic and non-pathogenic strains of V. parahaemolyticus and address the relevance of indicator bacteria in predicting V. parahaemolyticus concentrations, field surveys and experiments were carried out in western Long Island Sound, NY, USA, a region that has experienced recent outbreaks of shellfish contaminated with V. parahaemolyticus. Pathogenic and non-pathogenic strains were quantified via PCR detection of marker genes and most probable number techniques. Field survey data showed little correspondence between fecal coliforms and V. parahaemolyticus, but significant correlations between V. parahaemolyticus and an alternative indicator, enterococci, and between V. parahaemolyticus and short-term (48 h) rainfall were observed. Experiments demonstrated that enrichment of seawater with phytoplankton-derived dissolved organic matter significantly increased the concentration of total V. parahaemolyticus and the presence pathogenic V. parahaemolyticus, but higher temperatures did not. Collectively, these study results suggest that fecal coliforms may fail to account for the full suite of important shellfish pathogens but that enterococci could provide a potential alternative or supplement to shellfish sanitation monitoring. Given the ability of algal-derived dissolved organic matter to promote the growth of pathogenic V. parahaemolyticus, restricting nutrient inputs into coastal water bodies that promote algal blooms may indirectly decrease the proliferation of V. parahaemolyticus and protect public health.
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Affiliation(s)
- Jake D. Thickman
- School of Marine and Atmospheric Sciences at Stony Brook University, Southampton, New York, United States of America
| | - Christopher J. Gobler
- School of Marine and Atmospheric Sciences at Stony Brook University, Southampton, New York, United States of America
- * E-mail:
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224
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Vibrio Pathogens: A Public Health Concern in Rural Water Resources in Sub-Saharan Africa. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14101188. [PMID: 28991153 PMCID: PMC5664689 DOI: 10.3390/ijerph14101188] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Revised: 09/29/2017] [Accepted: 10/04/2017] [Indexed: 12/12/2022]
Abstract
Members of the Vibrio genus are autochthonous inhabitants of aquatic environments and play vital roles in sustaining the aquatic milieu. The genus comprises about 100 species, which are mostly of marine or freshwater origin, and their classification is frequently updated due to the continuous discovery of novel species. The main route of transmission of Vibrio pathogens to man is through drinking of contaminated water and consumption inadequately cooked aquatic food products. In sub-Saharan Africa and much of the developing world, some rural dwellers use freshwater resources such as rivers for domestic activities, bathing, and cultural and religious purposes. This review describes the impact of inadequately treated sewage effluents on the receiving freshwater resources and the associated risk to the rural dwellers that depends on the water. Vibrio infections remain a threat to public health. In the last decade, Vibrio disease outbreaks have created alertness on the personal, economic, and public health uncertainties associated with the impact of contaminated water in the aquatic environment of sub-Saharan Africa. In this review, we carried out an overview of Vibrio pathogens in rural water resources in Sub-Saharan Africa and the implication of Vibrio pathogens on public health. Continuous monitoring of Vibrio pathogens among environmental freshwater and treated effluents is expected to help reduce the risk associated with the early detection of sources of infection, and also aid our understanding of the natural ecology and evolution of Vibrio pathogens.
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225
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Liu Y, Zhao C, Song X, Xu K, Wang J, Li J. Colorimetric immunoassay for rapid detection of Vibrio parahaemolyticus. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2523-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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226
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Xu F, Feng X, Sui X, Lin H, Han Y. Inactivation mechanism of Vibrio parahaemolyticus via supercritical carbon dioxide treatment. Food Res Int 2017; 100:282-288. [DOI: 10.1016/j.foodres.2017.08.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 08/04/2017] [Accepted: 08/16/2017] [Indexed: 10/19/2022]
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227
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Selective turn-on fluorescence detection of Vibrio parahaemolyticus in food based on charge-transfer between CdSe/ZnS quantum dots and gold nanoparticles. Food Control 2017. [DOI: 10.1016/j.foodcont.2017.05.032] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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228
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Park SY, Ha SD. Inactivation ofVibrio parahaemolyticusin shucked raw oyster (Grassostrea gigas) and clam (Venerupis phillippinarum) by using a combination of NaClO and gamma irradiation. FOOD SCI TECHNOL INT 2017; 24:43-52. [DOI: 10.1177/1082013217726634] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Shin Young Park
- School of Food Science and Technology, Chung-Ang University, Ansung, Republic of Korea
| | - Sang-Do Ha
- School of Food Science and Technology, Chung-Ang University, Ansung, Republic of Korea
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229
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Proteomic Analysis of Vibrio parahaemolyticus Under Cold Stress. Curr Microbiol 2017; 75:20-26. [PMID: 28831596 DOI: 10.1007/s00284-017-1345-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 08/17/2017] [Indexed: 10/19/2022]
Abstract
Vibrio parahaemolyticus is a kind of food-borne pathogenic bacterium, which can seriously infect food, especially seafood causing gastroenteritis and other disease. We studied the global proteome responses of V. parahaemolyticus under cold stress by nano-liquid chromatography-tandem mass spectrometry to improve the present understanding of V. parahaemolyticus proteomics events under cold stress. A total of 1151 proteins were identified and 101 proteins were differentially expressed, of which 69 were significantly up-regulated and 32 were downregulated. Functional categorization of these proteins revealed distinct differences between cold-stressed and control cells. These proteins were grouped into 21 functional categories by the clusters of orthologous groups (COG) analysis. The most of up-regulated proteins were functionally categorized as nucleotide transport and metabolism, transcription, function unknown, and defense mechanisms. These up-regulated proteins play an important role under cold stress.
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230
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Gao H, Zhang L, Osei‐Adjei G, Yang W, Zhou D, Huang X, Yang H, Yin Z, Zhang Y. Transcriptional regulation of cpsQ-mfpABC and mfpABC by CalR in Vibrio parahaemolyticus. Microbiologyopen 2017; 6:e00470. [PMID: 28318117 PMCID: PMC5552913 DOI: 10.1002/mbo3.470] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 02/10/2017] [Accepted: 02/21/2017] [Indexed: 11/11/2022] Open
Abstract
The cpsQ-mfpABC locus is transcribed as two operons, i.e., cpsQ-mfpABC and mfpABC, in Vibrio parahaemolyticus, and both of them are all required for biofilm formation. CalR belongs to the LysR-type transcriptional regulator family, and was originally identified as a repressor of the swarming motility and T3SS1 genes expression in V. parahaemolyticus. In the present work, a combination of qRT-PCR, primer extension, LacZ fusion expression, electrophoretic mobility shift assay, and DNase I footprinting assays were employed to elucidate the regulatory mechanisms of cpsQ-mfpABC and mfpABC by CalR. One transcription start site for each operon was detected and their activities were activated by CalR. His-CalR protected two DNA regions upstream of mfpABC against DNase I digestion, but no binding sites were detected in the promoter region of cpsQ-mfpABC, suggesting a direct and an indirect regulatory manner for mfpABC and cpsQ-mfpABC transcription by CalR, respectively. Collectively, the results presented here confirmed a new physiological role for CalR that acts as an activator for cpsQ-mfpABC and mfpABC transcription.
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Affiliation(s)
- He Gao
- State Key Laboratory for Infectious Disease Prevention and ControlNational Institute for Communicable Disease Control and PreventionChinese Centre for Disease Control and PreventionBeijingChina
| | - Lingyu Zhang
- School of MedicineJiangsu UniversityZhenjiangJiangsuChina
| | | | - Wenhui Yang
- State Key Laboratory of Pathogen and BiosecurityBeijing Institute of Microbiology and EpidemiologyBeijingChina
| | - Dongsheng Zhou
- State Key Laboratory of Pathogen and BiosecurityBeijing Institute of Microbiology and EpidemiologyBeijingChina
| | - Xinxiang Huang
- School of MedicineJiangsu UniversityZhenjiangJiangsuChina
| | - Huiying Yang
- State Key Laboratory of Pathogen and BiosecurityBeijing Institute of Microbiology and EpidemiologyBeijingChina
| | - Zhe Yin
- State Key Laboratory of Pathogen and BiosecurityBeijing Institute of Microbiology and EpidemiologyBeijingChina
| | - Yiquan Zhang
- School of MedicineJiangsu UniversityZhenjiangJiangsuChina
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231
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Molecular Typing ofVibrio parahaemolyticusStrains Isolated from Mollusks in the North Adriatic Sea. Foodborne Pathog Dis 2017; 14:454-464. [DOI: 10.1089/fpd.2016.2263] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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232
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Zhou J, Lu C, Zhang D, Ma C, Su X. NMR-based metabolomics reveals the metabolite profiles of Vibrio parahaemolyticus under ferric iron stimulation. J Microbiol 2017; 55:628-634. [PMID: 28752295 DOI: 10.1007/s12275-017-6551-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 04/11/2017] [Accepted: 05/10/2017] [Indexed: 01/15/2023]
Abstract
Vibrio parahaemolyticus is a halophilic bacterium endemic to coastal areas, and its pathogenicity has caused widespread seafood poisoning. In our previous research, the protein expression of V. parahaemolyticus in Fe3+ medium was determined using isobaric tags for relative and absolute quantitation (iTRAQ). Here, nuclear magnetic resonance (NMR) was used to detect changes in the V. parahaemolyticus metabolome. NMR spectra were obtained using methanol-water extracts of intracellular metabolites from V. parahaemolyticus under various culture conditions, and 62 metabolites were identified, including serine, arginine, alanine, ornithine, tryptophan, glutamine, malate, NAD+, NADP+, oxypurinol, xanthosine, dCTP, uracil, thymine, hypoxanthine, and betaine. Among these, 21 metabolites were up-regulated after the stimulation of the cells by ferric iron, and 9 metabolites were down-regulated. These metabolites are involved in amino acid and protein synthesis, energy metabolism, DNA and RNA synthesis and osmolality. Based on these results, we conclude that Fe3+ influences the metabolite profiles of V. parahaemolyticus.
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Affiliation(s)
- Jun Zhou
- School of Marine Science, Ningbo University, Zhejiang, 315211, P. R. China
| | - Chenyang Lu
- School of Marine Science, Ningbo University, Zhejiang, 315211, P. R. China.
| | - Dijun Zhang
- School of Marine Science, Ningbo University, Zhejiang, 315211, P. R. China
| | - Chennv Ma
- School of Marine Science, Ningbo University, Zhejiang, 315211, P. R. China
| | - Xiurong Su
- School of Marine Science, Ningbo University, Zhejiang, 315211, P. R. China.
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233
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Osei-Adjei G, Gao H, Zhang Y, Zhang L, Yang W, Yang H, Yin Z, Huang X, Zhang Y, Zhou D. Regulatory actions of ToxR and CalR on their own genes and type III secretion system 1 in Vibrio parahaemolyticus. Oncotarget 2017; 8:65809-65822. [PMID: 29029474 PMCID: PMC5630374 DOI: 10.18632/oncotarget.19498] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 06/20/2017] [Indexed: 12/11/2022] Open
Abstract
Vibrio parahaemolyticus is the leading cause of seafood-associated gastroenteritis. Type III secretion system 1 (T3SS1) is one of the virulence determinants of this bacteria. T3SS1 expression is regulated by ToxR and CalR. ToxR represses the transcription of T3SS1 genes via activation of CalR, which acts as a transcriptional repressor of T3SS1 genes. However, the transcriptional regulation mechanisms have not been elucidated. As showing in the present work, ToxR binds to the promoter DNA region of calR to activate its transcription. CalR occupies the promoter-proximal regions of each detected target operons in T3SS1 loci to repress their transcription, and thereby inhibiting T3SS1-dependent cytotoxicity. Moreover, a feedback CalR inhibits toxR and its own gene in a direct manner. Collectively, this work reported an interesting gene regulatory network involving the reciprocal regulation of ToxR and CalR, and their regulation on T3SS1 genes transcription in V. parahaemolyticus.
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Affiliation(s)
| | - He Gao
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Ying Zhang
- School of Medicine, Jiangsu University, Zhenjiang 212013, China
| | - Lingyu Zhang
- School of Medicine, Jiangsu University, Zhenjiang 212013, China
| | - Wenhui Yang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Huiying Yang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Zhe Yin
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Xinxiang Huang
- School of Medicine, Jiangsu University, Zhenjiang 212013, China
| | - Yiquan Zhang
- School of Medicine, Jiangsu University, Zhenjiang 212013, China
| | - Dongsheng Zhou
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
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Lv X, Du J, Jie Y, Zhang B, Bai F, Zhao H, Li J. Purification and antibacterial mechanism of fish-borne bacteriocin and its application in shrimp (Penaeus vannamei) for inhibiting Vibrio parahaemolyticus. World J Microbiol Biotechnol 2017; 33:156. [PMID: 28702797 DOI: 10.1007/s11274-017-2320-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Accepted: 07/07/2017] [Indexed: 12/19/2022]
Abstract
Vibrio parahaemolyticus: is recognized as the main cause of gastroenteritis associated with consumption of seafood. Bacteriocin-producing Lactobacillus plantarum FGC-12 isolated from golden carp intestine had strong antibacterial activity toward V. parahaemolyticus. The fish-borne bacteriocin was purified by a three-step procedure consisting of ethyl acetate extraction, gel filtration chromatography and high performance liquid chromatography. Its molecular weight was estimated at 4.1 kDa using SDS-PAGE. The fish-borne bacteriocin reached the maximum production at stationary phase after 20 h. It was heat-stable (30 min at 121 °C) and remained active at pH range from 3.0 to 5.5, but was sensitive to nutrasin, papain and pepsin. Its minimum inhibitory concentration for V. parahaemolyticus was 6.0 mg/ml. Scanning electron microscopy analysis showed that the fish-borne bacteriocin disrupted cell wall of V. parahaemolyticus. The antibacterial mechanism of the fish-borne bacteriocin against V. parahaemolyticus might be described as action on membrane integrity in terms of the leakage of electrolytes, the losses of Na+K+-ATPase, AKP and proteins. The addition of the fish-borne bacteriocin to shrimps leaded V. parahaemolyticus to reduce 1.3 log units at 4 °C storage for 6 day. Moreover, a marked decline in total volatile base nitrogen and total viable counts was observed in bacteriocin treated samples than the control. It is clear that this fish-borne bacteriocin has promising potential as biopreservation for the control of V. parahaemolyticus in aquatic products.
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Affiliation(s)
- Xinran Lv
- College of Biological Science and Biotechnology, Beijing Forestry University, No. 35 Tsinghua East Road Haidian District, Beijing, 100083, People's Republic of China
| | - Jingfang Du
- College of Food Science and Engineering, Bohai University, 19 Keji Road, Songshan New District, Jinzhou, 121013, Liaoning, People's Republic of China
| | - Yu Jie
- College of Biological Science and Biotechnology, Beijing Forestry University, No. 35 Tsinghua East Road Haidian District, Beijing, 100083, People's Republic of China
| | - Bolin Zhang
- College of Biological Science and Biotechnology, Beijing Forestry University, No. 35 Tsinghua East Road Haidian District, Beijing, 100083, People's Republic of China.
| | - Fengling Bai
- College of Food Science and Engineering, Bohai University, 19 Keji Road, Songshan New District, Jinzhou, 121013, Liaoning, People's Republic of China.
| | - Hongfei Zhao
- College of Biological Science and Biotechnology, Beijing Forestry University, No. 35 Tsinghua East Road Haidian District, Beijing, 100083, People's Republic of China
| | - Jianrong Li
- College of Food Science and Engineering, Bohai University, 19 Keji Road, Songshan New District, Jinzhou, 121013, Liaoning, People's Republic of China
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235
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Wang H, Tang X, Su YC, Chen J, Yan J. Characterization of clinical Vibrio parahaemolyticus strains in Zhoushan, China, from 2013 to 2014. PLoS One 2017; 12:e0180335. [PMID: 28678810 PMCID: PMC5498046 DOI: 10.1371/journal.pone.0180335] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Accepted: 06/14/2017] [Indexed: 01/10/2023] Open
Abstract
Vibrio parahaemolyticus is recognized as major cause of foodborne illness of global public health concern. This study collected 107 strains of V. parahaemolyticus during active surveillance of diarrheal diseases in hospitals in Zhoushan during 2013 to 2014 and investigated their serotypes, virulence genes (tdh, trh, and orf8), antimicrobial resistance, and genotypes. The dominant serotypes of the 107 clinical strains were O3:K6, O4:K8, and O4:KUT with 87.9% and 3.7% of the strains carrying the virulence genes tdh and trh, respectively. Molecular typing by pulsed-field gel electrophoresis indicated divergence among the clinical strains. Most isolates were sensitive to the common antimicrobial agents used against the Vibrio species except ampicillin. We conclude that continuous surveillance of V. parahaemolyticus in diarrhea patients is a public health priority and is useful for conducting risk assessment of foodborne illnesses caused by V. parahaemolyticus.
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Affiliation(s)
- Hongling Wang
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, Zhoushan, Zhejiang, China
- Zhoushan Municipal Center for Disease Control and Prevention, Zhoushan, Zhejiang, China
- * E-mail:
| | - Xiaoyang Tang
- Food Safety Research Center, Central Research Institute, MasterKong Holding, Shanghai, China
| | - Yi-Cheng Su
- Seafood Research and Education Center, Oregon State University, Astoria, Oregon, United States of America
| | - Jiabei Chen
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, Zhoushan, Zhejiang, China
- Zhoushan Municipal Center for Disease Control and Prevention, Zhoushan, Zhejiang, China
| | - Jianbo Yan
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, Zhoushan, Zhejiang, China
- Zhoushan Municipal Center for Disease Control and Prevention, Zhoushan, Zhejiang, China
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236
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Tan CW, Malcolm TTH, Kuan CH, Thung TY, Chang WS, Loo YY, Premarathne JMKJK, Ramzi OB, Norshafawatie MFS, Yusralimuna N, Rukayadi Y, Nakaguchi Y, Nishibuchi M, Radu S. Prevalence and Antimicrobial Susceptibility of Vibrio parahaemolyticus Isolated from Short Mackerels ( Rastrelliger brachysoma) in Malaysia. Front Microbiol 2017; 8:1087. [PMID: 28659901 PMCID: PMC5468395 DOI: 10.3389/fmicb.2017.01087] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 05/30/2017] [Indexed: 12/12/2022] Open
Abstract
Numerous prevalence studies and outbreaks of Vibrio parahaemolyticus infection have been extensively reported in shellfish and crustaceans. Information on the quantitative detection of V. parahaemolyticus in finfish species is limited. In this study, short mackerels (Rastrelliger brachysoma) obtained from different retail marketplaces were monitored with the presence of total and pathogenic strains of V. parahaemolyticus. Out of 130 short mackerel samples, 116 (89.2%) were detected with the presence of total V. parahaemolyticus and microbial loads of total V. parahaemolyticus ranging from <3 to >105 MPN/g. Prevalence of total V. parahaemolyticus was found highest in wet markets (95.2%) followed by minimarkets (89.1%) and hypermarkets (83.3%). Pathogenic V. parahaemolyticus strains (tdh+ and/or trh+) were detected in 16.2% (21 of 130) of short mackerel samples. The density of tdh+ V. parahaemolyticus strains were examined ranging from 3.6 to >105 MPN/g and microbial loads of V. parahaemolyticus strains positive for both tdh and trh were found ranging from 300 to 740 MPN/g. On the other hand, antibiotic susceptibility profiles of V. parahaemolyticus strains isolated from short mackerels were determined through disc diffusion method in this study. Assessment of antimicrobial susceptibility profile of V. parahaemolyticus revealed majority of the isolates were highly susceptible to ampicillin sulbactam, meropenem, ceftazidime, and imipenem, but resistant to penicillin G and ampicillin. Two isolates (2.99%) exhibited the highest multiple antibiotic resistance (MAR) index value of 0.41 which shown resistance to 7 antibiotics. Results of the present study demonstrated that the occurrence of pathogenic V. parahaemolyticus strains in short mackerels and multidrug resistance of V. parahaemolyticus isolates could be a potential public health concerns to the consumer. Furthermore, prevalence data attained from the current study can be further used to develop a microbial risk assessment model to estimate health risks associated with the consumption of short mackerels contaminated with pathogenic V. parahaemolyticus.
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Affiliation(s)
- Chia W Tan
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra MalaysiaSelangor, Malaysia
| | - Tan T H Malcolm
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra MalaysiaSelangor, Malaysia
| | - Chee H Kuan
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra MalaysiaSelangor, Malaysia
| | - Tze Y Thung
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra MalaysiaSelangor, Malaysia
| | - Wei S Chang
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra MalaysiaSelangor, Malaysia
| | - Yuet Y Loo
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra MalaysiaSelangor, Malaysia
| | - Jayasekara M K J K Premarathne
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra MalaysiaSelangor, Malaysia.,Department of Livestock and Avian Science, Faculty of Livestock, Fisheries and Nutrition, Wayamba University of Sri LankaMakandura, Sri Lanka
| | - Othman B Ramzi
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra MalaysiaSelangor, Malaysia
| | - Mohd F S Norshafawatie
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra MalaysiaSelangor, Malaysia
| | - Nordin Yusralimuna
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra MalaysiaSelangor, Malaysia
| | - Yaya Rukayadi
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra MalaysiaSelangor, Malaysia
| | | | - Mitsuaki Nishibuchi
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra MalaysiaSelangor, Malaysia
| | - Son Radu
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra MalaysiaSelangor, Malaysia.,Laboratory of Food Safety and Food Integrity, Institute of Tropical Agriculture and Food Security, Universiti Putra MalaysiaSelangor, Malaysia
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237
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Li H, Tang R, Lou Y, Cui Z, Chen W, Hong Q, Zhang Z, Malakar PK, Pan Y, Zhao Y. A Comprehensive Epidemiological Research for Clinical Vibrio parahaemolyticus in Shanghai. Front Microbiol 2017; 8:1043. [PMID: 28642752 PMCID: PMC5462930 DOI: 10.3389/fmicb.2017.01043] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 05/24/2017] [Indexed: 01/22/2023] Open
Abstract
Vibrio parahaemolyticus is one of the most important pathogen for seafood-borne gastroenteritis in Shanghai and the rest of the world. A total of 42 V. parahaemolyticus strains were isolated from 1900 fecal specimens collected from patients in Shanghai hospital presenting from January 2014 to December 2015. All isolates were evaluated for potential virulence factors [tdh, trh, and type three secretion system (T3SS) genes], typed using multilocus sequence typing (MLST) and screened for antimicrobial resistance phenotype and genotype. And for the first time, the relationship between virulence, genetic diversity and antimicrobial resistance of these isolates were identified. The results showed that 37 isolates carried the tdh gene (88.1%) and only seven isolates were positive for the trh gene. The T3SS1 and T3SS2 genes were detected in all strains and only trh-positive isolates are also containing the T3SS2β genes. MLST analysis of the 42 Shanghai isolates identified 20 sequence types (STs) with 16 novel STs and that these clinical V. parahaemolyticus strains showed high degrees of genetic diversity. All isolates expressed high levels of resistance against Ampicillin (100.0%), Streptomycin (100.0%), Cephazolin (92.9%), Kanamycin (92.8%) and Amikacin (90.5%), and eight out of 38 resistance genes (SHV, tet(B), strA, qnrA, gryA, qnrB, sulI, sulII) were detected in at least two isolates. This study confirms that antimicrobial resistance of clinical V. parahaemolyticus isolates is greater than those of environmental isolates. Furthermore, no clear correlation between antimicrobial resistance and virulence or genetic diversity was found in this study. These results add to epidemiological data of clinical V. parahaemolyticus isolates in Shanghai and highlight the need for additional mechanistic studies, especially antimicrobial resistance, to reduce the burden of disease caused by this pathogen in China.
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Affiliation(s)
- Huan Li
- College of Food Science and Technology, Shanghai Ocean UniversityShanghai, China
| | - Rong Tang
- Shanghai General HospitalShanghai, China
| | - Yang Lou
- College of Food Science and Technology, Shanghai Ocean UniversityShanghai, China
| | - Zelin Cui
- Shanghai General HospitalShanghai, China
| | | | - Qing Hong
- Shanghai General HospitalShanghai, China
| | - Zhaohuan Zhang
- College of Food Science and Technology, Shanghai Ocean UniversityShanghai, China
| | - Pradeep K. Malakar
- College of Food Science and Technology, Shanghai Ocean UniversityShanghai, China
| | - Yingjie Pan
- College of Food Science and Technology, Shanghai Ocean UniversityShanghai, China
- Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of AgricultureShanghai, China
- Shanghai Engineering Research Center of Aquatic-Product Processing and PreservationShanghai, China
| | - Yong Zhao
- College of Food Science and Technology, Shanghai Ocean UniversityShanghai, China
- Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of AgricultureShanghai, China
- Shanghai Engineering Research Center of Aquatic-Product Processing and PreservationShanghai, China
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238
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Zhu C, Sun B, Liu T, Zheng H, Gu W, He W, Sun F, Wang Y, Yang M, Bei W, Peng X, She Q, Xie L, Chen L. Genomic and transcriptomic analyses reveal distinct biological functions for cold shock proteins (VpaCspA and VpaCspD) in Vibrio parahaemolyticus CHN25 during low-temperature survival. BMC Genomics 2017; 18:436. [PMID: 28583064 PMCID: PMC5460551 DOI: 10.1186/s12864-017-3784-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 05/10/2017] [Indexed: 11/24/2022] Open
Abstract
Background Vibrio parahaemolyticus causes serious seafood-borne gastroenteritis and death in humans. Raw seafood is often subjected to post-harvest processing and low-temperature storage. To date, very little information is available regarding the biological functions of cold shock proteins (CSPs) in the low-temperature survival of the bacterium. In this study, we determined the complete genome sequence of V. parahaemolyticus CHN25 (serotype: O5:KUT). The two main CSP-encoding genes (VpacspA and VpacspD) were deleted from the bacterial genome, and comparative transcriptomic analysis between the mutant and wild-type strains was performed to dissect the possible molecular mechanisms that underlie low-temperature adaptation by V. parahaemolyticus. Results The 5,443,401-bp V. parahaemolyticus CHN25 genome (45.2% G + C) consisted of two circular chromosomes and three plasmids with 4,724 predicted protein-encoding genes. One dual-gene and two single-gene deletion mutants were generated for VpacspA and VpacspD by homologous recombination. The growth of the ΔVpacspA mutant was strongly inhibited at 10 °C, whereas the VpacspD gene deletion strongly stimulated bacterial growth at this low temperature compared with the wild-type strain. The complementary phenotypes were observed in the reverse mutants (ΔVpacspA-com, and ΔVpacspD-com). The transcriptome data revealed that 12.4% of the expressed genes in V. parahaemolyticus CHN25 were significantly altered in the ΔVpacspA mutant when it was grown at 10 °C. These included genes that were involved in amino acid degradation, secretion systems, sulphur metabolism and glycerophospholipid metabolism along with ATP-binding cassette transporters. However, a low temperature elicited significant expression changes for 10.0% of the genes in the ΔVpacspD mutant, including those involved in the phosphotransferase system and in the metabolism of nitrogen and amino acids. The major metabolic pathways that were altered by the dual-gene deletion mutant (ΔVpacspAD) radically differed from those that were altered by single-gene mutants. Comparison of the transcriptome profiles further revealed numerous differentially expressed genes that were shared among the three mutants and regulators that were specifically, coordinately or antagonistically modulated by VpaCspA and VpaCspD. Our data also revealed several possible molecular coping strategies for low-temperature adaptation by the bacterium. Conclusions This study is the first to describe the complete genome sequence of V. parahaemolyticus (serotype: O5:KUT). The gene deletions, complementary insertions, and comparative transcriptomics demonstrate that VpaCspA is a primary CSP in the bacterium, while VpaCspD functions as a growth inhibitor at 10 °C. These results have improved our understanding of the genetic basis for low-temperature survival by the most common seafood-borne pathogen worldwide. Electronic supplementary material The online version of this article (doi:10.1186/s12864-017-3784-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Chunhua Zhu
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture; College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306, People's Republic of China
| | - Boyi Sun
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture; College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306, People's Republic of China
| | - Taigang Liu
- College of Information Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306, People's Republic of China
| | - Huajun Zheng
- Shanghai-MOST Key Laboratory of Disease and Health Genomics, Chinese National Human Genome Centre at Shanghai, Shanghai, 201203, People's Republic of China
| | - Wenyi Gu
- Shanghai-MOST Key Laboratory of Disease and Health Genomics, Chinese National Human Genome Centre at Shanghai, Shanghai, 201203, People's Republic of China
| | - Wei He
- Shanghai Hanyu Bio-lab, 151 Ke Yuan Road, Shanghai, 201203, People's Republic of China
| | - Fengjiao Sun
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture; College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306, People's Republic of China
| | - Yaping Wang
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture; College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306, People's Republic of China
| | - Meicheng Yang
- Shanghai Institute for Food and Drug Control, 1500 Zhang Heng Road, Shanghai, 201203, People's Republic of China
| | - Weicheng Bei
- State Key Laboratory of Agricultural Microbiology, Laboratory of Animal Infectious Diseases, College of Animal Science & Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China
| | - Xu Peng
- Archaea Centre, Department of Biology, University of Copenhagen, Ole Maaløes Vej 5, DK2200, Copenhagen N, Denmark
| | - Qunxin She
- Archaea Centre, Department of Biology, University of Copenhagen, Ole Maaløes Vej 5, DK2200, Copenhagen N, Denmark
| | - Lu Xie
- Shanghai Center for Bioinformation Technology, 1278 Keyuan Road, Shanghai, 201203, People's Republic of China.
| | - Lanming Chen
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture; College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306, People's Republic of China.
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Mizan MFR, Bang HJ, Sadekuzzaman M, Lee N, Kim TJ, Ha SD. Molecular characteristics, biofilm-forming abilities, and quorum sensing molecules in Vibrio parahaemolyticus strains isolated from marine and clinical environments in Korea. BIOFOULING 2017; 33:369-378. [PMID: 28452235 DOI: 10.1080/08927014.2017.1316840] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 04/02/2017] [Indexed: 06/07/2023]
Abstract
Vibrio parahaemolyticus is an inhabitant of marine and estuarine environments and causes seafood-borne gastroenteritis in humans. In this study, an UltraFast LabChip Real-Time PCR assay was evaluated for rapid detection and quantification of pathogenic V. parahaemolyticus isolates. Escherichia coli and Vibrio harveyi were used as negative controls. Twenty-six tdh-positive, biofilm-producing V. parahaemolyticus isolates were analyzed by repetitive extragenic palindromic-polymerase chain reaction (REP-PCR). REP-PCR analysis showed that the majority of the V. parahaemolyticus isolates originated from seafood and that clinical specimens formed two major clusters at 92.8% and 32% similarity levels. The presence and quantification of Autoinducer-2 was carried out using high-performance liquid chromatography with fluorescence detection (HPLC-FLD) after derivatization of Autoinducer-2 with 2, 3-diaminonaphthalene. The presence of tdh-positive V. parahaemolyticus in marine samples highlights the need for constant environmental monitoring to protect public health.
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Affiliation(s)
- Md Furkanur Rahaman Mizan
- a Department of Food Science and Technology, Advanced Food Safety Research group, Brain Korea 21 Plus , Chung-Ang University , Anseong , Republic of Korea
| | - Hyeon-Jo Bang
- a Department of Food Science and Technology, Advanced Food Safety Research group, Brain Korea 21 Plus , Chung-Ang University , Anseong , Republic of Korea
| | - Mohammad Sadekuzzaman
- a Department of Food Science and Technology, Advanced Food Safety Research group, Brain Korea 21 Plus , Chung-Ang University , Anseong , Republic of Korea
| | - Nari Lee
- b Food Safety Research Group , Korea Food Research Institute , Seongnam-si , Republic of Korea
| | - Tae-Jo Kim
- c College of Education, Hospitality, Health and Human Sciences , Wisconsin's Polytechnic University , Menomonie , WI , USA
| | - Sang-Do Ha
- a Department of Food Science and Technology, Advanced Food Safety Research group, Brain Korea 21 Plus , Chung-Ang University , Anseong , Republic of Korea
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Shi Y, Sun R, An D, Lu W, Zhang C, Wang L, Liu Y, Wang Q. Mathematical quantification of inactivation of Vibrio parahaemolyticus on two types of surface soiled with different substrates. Food Control 2017. [DOI: 10.1016/j.foodcont.2016.11.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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241
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Sensitive immunoassay-based detection of Vibrio parahaemolyticus using capture and labeling particles in a stationary liquid phase lab-on-a-chip. Biosens Bioelectron 2017; 90:269-275. [DOI: 10.1016/j.bios.2016.11.071] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 11/24/2016] [Accepted: 11/30/2016] [Indexed: 11/23/2022]
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242
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Rosa JVD, Käefer K, Conceição NVD, Conceição RCD, Timm CD. Formação de biofilme por Vibrio parahaemolyticus isolados de pescados. PESQUISA VETERINARIA BRASILEIRA 2017. [DOI: 10.1590/s0100-736x2017000400007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
RESUMO: O pescado é um alimento altamente perecível, possui pH próximo a neutralidade, elevada atividade de água e alto teor de nutrientes facilmente utilizáveis por micro-organismos. Vibrio parahaemolyticus pode ser encontrado em ambientes com salinidade entre 3% e 8% e tem pH ideal para multiplicação entre 7,8 e 8,6. É um patógeno que pode causar gastrenterite aguda pelo consumo de frutos do mar contaminados, crus ou mal cozidos. Mesmo os processos de tratamento de água como cloração, adição de antibióticos e filtros apresentam dificuldade em reduzir a contaminação por Vibrio, sendo suposto que este gênero bacteriano pode formar biofilmes em diferentes superfícies. O objetivo do trabalho foi verificar a capacidade de V. parahaemolyticus isolados de pescados formarem biofilme após estresse subletal. No decorrer de um ano, foram realizadas 12 coletas mensais de amostras de peixes capturados no estuário da Lagoa dos Patos, as quais foram analisadas quanto à presença de V. parahaemolyticus. Concomitantemente, foram coletadas assepticamente amostras de água do estuário para análise de sanilidade e pH. Os isolados de Vibrio foram analisados pela reação em cadeia da polimerase (PCR) para identificação da espécie pela presença dos genes toxR. Além dos isolados obtidos no presente trabalho, também foram estudadas 15 outras cepas de V. parahaemolyticus previamente isoladas em outros trabalhos. As cepas foram avaliadas quanto à capacidade de produção de biofilme em placas de microtitulação. A capacidade de produção de biofilme após as cepas serem submetidas a diferentes tipos de estresse subletal (42ºC, 20ºC, 4ºC e pH ácido) também foi testada. Dentre os 120 peixes analisados, foram isolados V. parahaemolyticus de quatro (3,33%) pescados, sendo Mugil platanus a única espécie de peixe na qual o micro-organismo foi encontrado. Das 19 cepas analisadas, 89,5% foram capazes de formar biofilme, o que parece indicar que essa capacidade tem um papel importante na sobrevivência do micro-organismo nos pescados. Dessas, 25% das cepas aumentaram a capacidade de formar biofilme. Com base nos resultados, conclui-se que peixes da espécie M. platanus do estuário da Lagoa dos Patos são hospedeiros de V. parahaemolyticus e que a quase totalidade das cepas são formadoras de biofilme. A exposição a condições subletais de estresse tem efeito distinto sobre as diferentes cepas, induzindo aumento na capacidade de formar biofilme em algumas. Este foi o primeiro estudo realizado com V. parahaemolyticus, para avaliar o efeito de fatores de estresse sobre a formação de biofilme.
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Liao C, Zhao Y, Wang L. Establishment and Validation of RNA-Based Predictive Models for Understanding Survival of Vibrio parahaemolyticus in Oysters Stored at Low Temperatures. Appl Environ Microbiol 2017; 83:e02765-16. [PMID: 28087532 PMCID: PMC5335536 DOI: 10.1128/aem.02765-16] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 01/04/2017] [Indexed: 12/22/2022] Open
Abstract
This study developed RNA-based predictive models describing the survival of Vibrio parahaemolyticus in Eastern oysters (Crassostrea virginica) during storage at 0, 4, and 10°C. Postharvested oysters were inoculated with a cocktail of five V. parahaemolyticus strains and were then stored at 0, 4, and 10°C for 21 or 11 days. A real-time reverse transcription-PCR (RT-PCR) assay targeting expression of the tlh gene was used to evaluate the number of surviving V. parahaemolyticus cells, which was then used to establish primary molecular models (MMs). Before construction of the MMs, consistent expression levels of the tlh gene at 0, 4, and 10°C were confirmed, and this gene was used to monitor the survival of the total V. parahaemolyticus cells. In addition, the tdh and trh genes were used for monitoring the survival of virulent V. parahaemolyticus Traditional models (TMs) were built based on data collected using a plate counting method. From the MMs, V. parahaemolyticus populations had decreased 0.493, 0.362, and 0.238 log10 CFU/g by the end of storage at 0, 4, and 10°C, respectively. Rates of reduction of V. parahaemolyticus shown in the TMs were 2.109, 1.579, and 0.894 log10 CFU/g for storage at 0, 4, and 10°C, respectively. Bacterial inactivation rates (IRs) estimated with the TMs (-0.245, -0.152, and -0.121 log10 CFU/day, respectively) were higher than those estimated with the MMs (-0.134, -0.0887, and -0.0732 log10 CFU/day, respectively) for storage at 0, 4, and 10°C. Higher viable V. parahaemolyticus numbers were predicted using the MMs than using the TMs. On the basis of this study, RNA-based predictive MMs are the more accurate and reliable models and can prevent false-negative results compared to TMs.IMPORTANCE One important method for validating postharvest techniques and for monitoring the behavior of V. parahaemolyticus is to establish predictive models. Unfortunately, previous predictive models established based on plate counting methods or on DNA-based PCR can underestimate or overestimate the number of surviving cells. This study developed and validated RNA-based molecular predictive models to describe the survival of V. parahaemolyticus in oysters during low-temperature storage (0, 4, and 10°C). The RNA-based predictive models show the advantage of being able to count all of the culturable, nonculturable, and stressed cells. By using primers targeting the tlh gene and pathogenesis-associated genes (tdh and trh), real-time RT-PCR can evaluate the total surviving V. parahaemolyticus population as well as differentiate the pathogenic ones from the total population. Reliable and accurate predictive models are very important for conducting risk assessment and management of pathogens in food.
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Affiliation(s)
- Chao Liao
- Food Microbiology and Safety Lab, Department of Animal Sciences, Auburn University, Auburn, Alabama, USA
| | - Yong Zhao
- Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai Ocean University, Shanghai, China
| | - Luxin Wang
- Food Microbiology and Safety Lab, Department of Animal Sciences, Auburn University, Auburn, Alabama, USA
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Song X, Ma Y, Fu J, Zhao A, Guo Z, Malakar PK, Pan Y, Zhao Y. Effect of temperature on pathogenic and non-pathogenic Vibrio parahaemolyticus biofilm formation. Food Control 2017. [DOI: 10.1016/j.foodcont.2016.08.041] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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245
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Lamb JB, van de Water JAJM, Bourne DG, Altier C, Hein MY, Fiorenza EA, Abu N, Jompa J, Harvell CD. Seagrass ecosystems reduce exposure to bacterial pathogens of humans, fishes, and invertebrates. Science 2017; 355:731-733. [DOI: 10.1126/science.aal1956] [Citation(s) in RCA: 244] [Impact Index Per Article: 34.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Accepted: 01/23/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Joleah B. Lamb
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY, USA
| | - Jeroen A. J. M. van de Water
- Australian Institute of Marine Science, Townsville, Queensland, Australia
- Department of Marine Biology, Centre Scientifique de Monaco, Monaco
| | - David G. Bourne
- Australian Institute of Marine Science, Townsville, Queensland, Australia
- College of Science and Engineering, James Cook University, Townsville, Queensland, Australia
| | - Craig Altier
- Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Margaux Y. Hein
- College of Science and Engineering, James Cook University, Townsville, Queensland, Australia
| | - Evan A. Fiorenza
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY, USA
| | - Nur Abu
- Faculty of Marine Science and Fisheries, Hasanuddin University, Makassar, Sulawesi, Indonesia
| | - Jamaluddin Jompa
- Faculty of Marine Science and Fisheries, Hasanuddin University, Makassar, Sulawesi, Indonesia
| | - C. Drew Harvell
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY, USA
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Li P, Niu Q, Wei Q, Zhang Y, Ma X, Kim SW, Lin M, Huang R. Microbial shifts in the porcine distal gut in response to diets supplemented with Enterococcus Faecalis as alternatives to antibiotics. Sci Rep 2017; 7:41395. [PMID: 28165001 PMCID: PMC5292720 DOI: 10.1038/srep41395] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 12/19/2016] [Indexed: 01/04/2023] Open
Abstract
Gut microbiota plays an important role in host health and nutrient digestion of animals. Probiotics have become one of effective alternatives to antibiotics enhancing animal health and performance through modulating gut microbiota. Previously, our research demonstrated that dietary Enterococcus Faecalis UC-100 substituting antibiotics enhanced growth and health of weaned pigs. To investigate the alterations of microbiota in the distal gut of pigs fed E. faecalis UC-100 substituting antibiotics, this study assessed fecal microbiota in pigs from different dietary treatments: the basal diet group, the E. faecalis group, and the antibiotic group on d 0, 14, and 28 of feeding through 16 S rRNA sequencing. Twenty-one phyla and 137 genera were shared by all pigs, whereas 12 genera were uniquely identified in the E. faecalis group on d 14 and 28. Bacterial abundance and diversity in the E. faecalis group, bacterial diversity in the antibiotic group, especially abundances of Fibrobacteres phylum and 12 genera in the E. faecalis group and antibiotics group were lower than that in the basal diet group on d 28. These results showed that microbial shifts in the porcine gut in response to diets containing E. faecalis were similar to the response to which containing antibiotics.
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Affiliation(s)
- Pinghua Li
- Institute of Swine Science, Nanjing Agricultural University, Nanjing, 210095, China.,Huaian Academy of Nanjing Agricultural University, Huaian, 223005, China
| | - Qing Niu
- Institute of Swine Science, Nanjing Agricultural University, Nanjing, 210095, China.,Huaian Academy of Nanjing Agricultural University, Huaian, 223005, China
| | - Qingtian Wei
- Institute of Swine Science, Nanjing Agricultural University, Nanjing, 210095, China.,Huaian Academy of Nanjing Agricultural University, Huaian, 223005, China
| | - Yeqiu Zhang
- Institute of Swine Science, Nanjing Agricultural University, Nanjing, 210095, China.,Huaian Academy of Nanjing Agricultural University, Huaian, 223005, China
| | - Xiang Ma
- Institute of Swine Science, Nanjing Agricultural University, Nanjing, 210095, China.,Huaian Academy of Nanjing Agricultural University, Huaian, 223005, China
| | - Sung Woo Kim
- Department of Animal Science, North Carolina State University, Raleigh, North Carolina, 27695, United States of America
| | - Mingxin Lin
- Changxing Ecoagriculture Co. Limited, Yixing, 214246, China
| | - Ruihua Huang
- Institute of Swine Science, Nanjing Agricultural University, Nanjing, 210095, China.,Huaian Academy of Nanjing Agricultural University, Huaian, 223005, China
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Ecological fitness and virulence features of Vibrio parahaemolyticus in estuarine environments. Appl Microbiol Biotechnol 2017; 101:1781-1794. [PMID: 28144705 DOI: 10.1007/s00253-017-8096-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 12/22/2016] [Accepted: 01/02/2017] [Indexed: 12/11/2022]
Abstract
Vibrio parahaemolyticus is a commonly encountered and highly successful organism in marine ecosystems. It is a fast-growing, extremely versatile copiotroph that is active over a very broad range of conditions. It frequently occurs suspended in the water column (often attached to particles or zooplankton), and is a proficient colonist of submerged surfaces. This organism is an important pathogen of animals ranging from microcrustaceans to humans and is a causative agent of seafood-associated food poisoning. This review examines specific ecological adaptations of V. parahaemolyticus, including its broad tolerances to temperature and salinity, its utilization of a wide variety of organic carbon and energy sources, and its pervasive colonization of suspended and stationary materials that contribute to its success and ubiquity in temperate and tropical estuarine ecosystems. Several virulence-related features are examined, in particular the thermostable direct hemolysin (TDH), the TDH-related hemolysin (TRH), and the type 3 secretion system, and the possible importance of these features in V. parahaemolyticus pathogenicity is explored. The impact of new and much more effective PCR primers on V. parahaemolyticus detection and our views of virulent strain abundance are also described. It is clear that strains carrying the canonical virulence genes are far more common than previously thought, which opens questions regarding the role of these genes in pathogenesis. It is also clear that virulence is an evolving feature of V. parahaemolyticus and that novel combinations of virulence factors can lead to emergent virulence in which a strain that is markedly more pathogenic evolves and propagates to produce an outbreak. The effects of global climate change on the frequency of epidemic disease, the geographic distribution of outbreaks, and the human impacts of V. parahaemolyticus are increasing and this review provides information on why this ubiquitous human pathogen has increased its footprint and its significance so dramatically.
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Zhang Z, Lou Y, Du S, Xiao L, Niu B, Pan Y, Zhao Y. Prevalence of Vibrio parahaemolyticus in seafood products from hypermarkets in Shanghai. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2017; 97:705-710. [PMID: 26991741 DOI: 10.1002/jsfa.7715] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Revised: 03/06/2016] [Accepted: 03/09/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND Vibrio parahaemolyticus is an important gastroenteritis pathogen contaminating seafood in China. In this study a total of 992 seafood samples from major hypermarkets in Shanghai were monitored for prevalence and burden of V. parahaemolyticus from January 2011 to December 2012. Additionally, appropriate probability distributions for describing V. parahaemolyticus concentrations were assessed based on these surveillance data. RESULTS Seventeen of 992 samples were positive for V. parahaemolyticus and the geometric mean was 0.1581 most probable number (MPN) g-1 . The variation in prevalence of V. parahaemolyticus was seasonal and the burden of contamination in August (0.1942 MPN g-1 ) was significant (P < 0.01) between 2011 and 2012. Also, the prevalence of V. parahaemolyticus was higher in shellfish and cephalopods than in other seafood (P < 0.05). By comparison, the lognormal distribution and integrated distribution showed no obvious difference for characterizing V. parahaemolyticus contamination. CONCLUSION The low prevalence and burden found indicated that seafood from hypermarkets may not be an important risk source for V. parahaemolyticus infection in Shanghai, and more attention should be paid to other areas for selling seafood, such as farmlands or farmers' markets. The simple and effective lognormal distribution is recommended as a better choice for describing V. parahaemolyticus contamination in future risk assessment studies. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Zhaohuan Zhang
- College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306, China
| | - Yang Lou
- College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306, China
| | - Suping Du
- College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306, China
| | - LiLi Xiao
- College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306, China
| | - Ben Niu
- College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306, China
| | - Yingjie Pan
- College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306, China
- Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, 999 Hu Cheng Huan Road, Shanghai, 201306, China
- Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, 999 Hu Cheng Huan Road, Shanghai, 201306, China
| | - Yong Zhao
- College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306, China
- Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, 999 Hu Cheng Huan Road, Shanghai, 201306, China
- Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, 999 Hu Cheng Huan Road, Shanghai, 201306, China
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Inactivation Kinetics ofVibrio parahaemolyticuson Sand Shrimp(Metapenaeus ensis)by Cinnamaldehyde at 4°C. J FOOD QUALITY 2017. [DOI: 10.1155/2017/5767925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Sand shrimp(Metapenaeus ensis), shrimp shell, and shrimp meat were inoculated with a three-strain cocktail ofVibrio parahaemolyticuswith or without the natural antimicrobial cinnamaldehyde (2.5 mg/ml) and were, then, stored at 4°C for up to 25 days and 18 inactivation curves were obtained.V. parahaemolyticuswere inactivated down to the minimum level of detection (2.48 log CFU/g) on thiosulfate citrate bile salts sucrose agar (TCBS) plates within 7 and 10 days with low and high densities ofV. parahaemolyticusinoculation, 4.5 log CFU/g and 8.2 log CFU/g, respectively. With adding cinnamaldehyde, the inactivation process ofV. parahaemolyticuswith low populations, 4.5 log CFU/g, lasted for only 4 days. Therefore, cinnamaldehyde inactivated cells faster as expected. However, unexpectedly, in shrimp meat cases, cells have much more persistence of over even 25 days before entering the minimum level of detection both with and without cinnamaldehyde treatment. Therefore, a hypothesis was formed that when cells kept in cold environments (4°C) after several days recovered to up to 103–104CFU/g towards the end of the experiments and with starvation (shell and shrimp studies), cells might render a viable but nonculturable (VBNC) state.
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Rajalaxmi M, Amsa Devi V, Pandian SK. In vitro evaluation of indole-3-carboxaldehyde on Vibrio parahaemolyticus biofilms. Biologia (Bratisl) 2016. [DOI: 10.1515/biolog-2016-0043] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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