251
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Webb AL, Kruczkiewicz P, Selinger LB, Inglis GD, Taboada EN. Development of a comparative genomic fingerprinting assay for rapid and high resolution genotyping of Arcobacter butzleri. BMC Microbiol 2015; 15:94. [PMID: 25947176 PMCID: PMC4424573 DOI: 10.1186/s12866-015-0426-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 04/15/2015] [Indexed: 02/07/2023] Open
Abstract
Background Molecular typing methods are critical for epidemiological investigations, facilitating disease outbreak detection and source identification. Study of the epidemiology of the emerging human pathogen Arcobacter butzleri is currently hampered by the lack of a subtyping method that is easily deployable in the context of routine epidemiological surveillance. In this study we describe a comparative genomic fingerprinting (CGF) method for high-resolution and high-throughput subtyping of A. butzleri. Comparative analysis of the genome sequences of eleven A. butzleri strains, including eight strains newly sequenced as part of this project, was employed to identify accessory genes suitable for generating unique genetic fingerprints for high-resolution subtyping based on gene presence or absence within a strain. Results A set of eighty-three accessory genes was used to examine the population structure of a dataset comprised of isolates from various sources, including human and non-human animals, sewage, and river water (n=156). A streamlined assay (CGF40) based on a subset of 40 genes was subsequently developed through marker optimization. High levels of profile diversity (121 distinct profiles) were observed among the 156 isolates in the dataset, and a high Simpson’s Index of Diversity (ID) observed (ID > 0.969) indicate that the CGF40 assay possesses high discriminatory power. At the same time, our observation that 115 isolates in this dataset could be assigned to 29 clades with a profile similarity of 90% or greater indicates that the method can be used to identify clades comprised of genetically similar isolates. Conclusions The CGF40 assay described herein combines high resolution and repeatability with high throughput for the rapid characterization of A. butzleri strains. This assay will facilitate the study of the population structure and epidemiology of A. butzleri. Electronic supplementary material The online version of this article (doi:10.1186/s12866-015-0426-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Andrew L Webb
- Agriculture and Agri-Food Canada, 5403 - 1st Avenue S, Lethbridge, AB, Canada. .,Department of Biological Sciences, University of Lethbridge, Lethbridge, AB, Canada.
| | - Peter Kruczkiewicz
- Public Health Agency of Canada, Township Rd. 9-1, Lethbridge, AB, Canada.
| | - L Brent Selinger
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB, Canada.
| | - G Douglas Inglis
- Agriculture and Agri-Food Canada, 5403 - 1st Avenue S, Lethbridge, AB, Canada.
| | - Eduardo N Taboada
- Public Health Agency of Canada, Township Rd. 9-1, Lethbridge, AB, Canada.
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252
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Lu X, Zhang XX, Wang Z, Huang K, Wang Y, Liang W, Tan Y, Liu B, Tang J. Bacterial pathogens and community composition in advanced sewage treatment systems revealed by metagenomics analysis based on high-throughput sequencing. PLoS One 2015; 10:e0125549. [PMID: 25938416 PMCID: PMC4418606 DOI: 10.1371/journal.pone.0125549] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 03/25/2015] [Indexed: 12/15/2022] Open
Abstract
This study used 454 pyrosequencing, Illumina high-throughput sequencing and metagenomic analysis to investigate bacterial pathogens and their potential virulence in a sewage treatment plant (STP) applying both conventional and advanced treatment processes. Pyrosequencing and Illumina sequencing consistently demonstrated that Arcobacter genus occupied over 43.42% of total abundance of potential pathogens in the STP. At species level, potential pathogens Arcobacter butzleri, Aeromonas hydrophila and Klebsiella pneumonia dominated in raw sewage, which was also confirmed by quantitative real time PCR. Illumina sequencing also revealed prevalence of various types of pathogenicity islands and virulence proteins in the STP. Most of the potential pathogens and virulence factors were eliminated in the STP, and the removal efficiency mainly depended on oxidation ditch. Compared with sand filtration, magnetic resin seemed to have higher removals in most of the potential pathogens and virulence factors. However, presence of the residual A. butzleri in the final effluent still deserves more concerns. The findings indicate that sewage acts as an important source of environmental pathogens, but STPs can effectively control their spread in the environment. Joint use of the high-throughput sequencing technologies is considered a reliable method for deep and comprehensive overview of environmental bacterial virulence.
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Affiliation(s)
- Xin Lu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, China
| | - Xu-Xiang Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, China
- * E-mail: (XXZ); (BL)
| | - Zhu Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, China
| | - Kailong Huang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, China
| | - Yuan Wang
- Environmental Science Research Institute of Jiangsu, Nanjing, China
| | - Weigang Liang
- Zhengzhou Sewage Purification Company, Zhengzhou, China
| | - Yunfei Tan
- Zhengzhou Sewage Purification Company, Zhengzhou, China
| | - Bo Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, China
- Research Institute of Nanjing University at Lianyungang, Lianyungang, China
- * E-mail: (XXZ); (BL)
| | - Junying Tang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, China
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253
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Modified isolation method of Arcobacter spp. from different environmental and food samples. Folia Microbiol (Praha) 2015; 60:515-21. [DOI: 10.1007/s12223-015-0395-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 04/15/2015] [Indexed: 10/23/2022]
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254
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Chen X, Di P, Wang H, Li B, Pan Y, Yan S, Wang Y. Bacterial community associated with the intestinal tract of Chinese mitten crab (Eriocheir sinensis) farmed in Lake Tai, China. PLoS One 2015; 10:e0123990. [PMID: 25875449 PMCID: PMC4395229 DOI: 10.1371/journal.pone.0123990] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 02/25/2015] [Indexed: 01/16/2023] Open
Abstract
Chinese mitten crab (CMC, Eriocheir sinensis) is an economically valuable species in South-East Asia that has been widely farmed in China. Characterization of the intestinal bacterial diversity of CMC will provide insights into the aquaculturing of CMCs. Based on the analysis of cloned 16S rRNA genes from culture-independent CMC gut bacteria, 124 out of 128 different clones reveal >95% nucleotide similarity to the species belonging to the four phyla of Tenericutes, Bacteroidetes, Firmicutes and Proteobacteria; one clone shows 91% sequence similarity to the member of TM7 (a candidate phylum without cultured representatives). Fluorescent in situ hybridization also reveals the abundance of Bacteroidetes in crab intestine. Electron micrographs show that spherical and filamentous bacteria are closely associated with the microvillus brush border of the midgut epithelium and are often inserted into the space between the microvilli using a stalk-like cell appendage. In contrast, the predominant rod-shaped bacteria in the hindgut are tightly attached to the epithelium surface by an unusual pili-like structure. Both 16S rRNA gene denaturing gel gradient electrophoresis and metagenome library indicate that the CMC Mollicutes group 2 appears to be present in both the midgut and hindgut with no significant difference in abundance. The CMC Mollicutes group 1, however, was found mostly in the midgut of CMCs. The CMC gut Mollicutes phylotypes appear to be most closely related to Mollicutes symbionts detected in the gut of isopods (Crustacea: Isopoda). Overall, the results suggest that CMCs harbor diverse, novel and specific gut bacteria, which are likely to live in close relationships with the CMC host.
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Affiliation(s)
- Xiaobing Chen
- Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage & Preservation, Ministry of Agriculture, Shanghai, China
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Panpan Di
- Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage & Preservation, Ministry of Agriculture, Shanghai, China
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Hongming Wang
- Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage & Preservation, Ministry of Agriculture, Shanghai, China
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Bailin Li
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Yingjie Pan
- Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage & Preservation, Ministry of Agriculture, Shanghai, China
- Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai, China
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Shuling Yan
- Institute of Biochemistry and Molecular Cell Biology, University of Goettingen, Goettingen, Germany
| | - Yongjie Wang
- Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage & Preservation, Ministry of Agriculture, Shanghai, China
- Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai, China
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- * E-mail:
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255
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Bogantes EV, Fallas-Padilla KL, Rodríguez-Rodríguez CE, Jaramillo HF, Echandi MLA. Zoonotic species of the genus Arcobacter in poultry from different regions of Costa Rica. J Food Prot 2015; 78:808-11. [PMID: 25836409 DOI: 10.4315/0362-028x.jfp-14-494] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In recent years, emerging pathogens have received special attention due to their consequences for public health. Given that Arcobacter has been isolated in Costa Rica from commercial meat poultry samples, the aim of this research was to determine its isolation frequency from laying hens, broilers, ducks, and geese and to compare two types of samples, namely, cloacal swabs and stool collection. Arcobacter was isolated from 22 (11%) of the 200 samples examined. Fifteen (55%), eight (30%), and four (15%) of the isolated strains were identified as A. butzleri, A. cryareophilus, and Arcobacter spp., respectively. Also, there is a statistically significant difference among the isolation frequencies of Arcobacter for the types of samples evaluated, yielding more isolates from stool samples than from cloacal swab collection. This work describes the distribution of Arcobacter in farm animals as potential sources for its spread from animal-derived products.
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Affiliation(s)
- Esteban Valverde Bogantes
- Tropical Disease Research Center and Microbiology Faculty, Universidad de Costa Rica, 2060 San José, Costa Rica
| | - Karolina L Fallas-Padilla
- Tropical Disease Research Center and Microbiology Faculty, Universidad de Costa Rica, 2060 San José, Costa Rica
| | | | | | - María Laura Arias Echandi
- Tropical Disease Research Center and Microbiology Faculty, Universidad de Costa Rica, 2060 San José, Costa Rica.
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256
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Ferreira S, Queiroz JA, Oleastro M, Domingues FC. Insights in the pathogenesis and resistance of Arcobacter: A review. Crit Rev Microbiol 2015; 42:364-83. [PMID: 25806423 DOI: 10.3109/1040841x.2014.954523] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Arcobacter genus currently comprises 18 recognized species, among which Arcobacter butzleri, Arcobacter cryaerophilus and Arcobacter skirrowii have been associated with human and animal disease. Although these organisms, with special emphasis A. butzleri, are emerging as clinical pathogens, several aspects of their epidemiology and virulence are only starting to be clarified. In vitro human and animal cell culture assays have been used to show that several Arcobacter species can adhere to and invade eukaryotic cells, induce an immune response and produce toxins that damage host cells. In addition, data from genome sequencing highlighted several potential markers that may be helpful candidates for the study and understanding of these mechanisms; however, more work is necessary to clarify the molecular mechanisms involved in Arcobacter virulence. Arcobacter can be considered a relatively robust organism showing to be able to survive in adverse conditions, as the ones imposed by food processing and storage. Moreover, these bacteria have shown increased antibiotic resistance, along with high multidrug resistance. In this review, we seek to update the state-of-the-art concerning Arcobacter distribution, its interaction with the host, the trends of antibiotic resistance, its ability to survive, and finally the use of natural antimicrobials for control of Arcobacter.
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Affiliation(s)
- Susana Ferreira
- a CICS-UBI-Health Sciences Research Centre, University of Beira Interior , Covilhã , Portugal and
| | - João A Queiroz
- a CICS-UBI-Health Sciences Research Centre, University of Beira Interior , Covilhã , Portugal and
| | - Mónica Oleastro
- b Department of Infectious Diseases , National Reference Laboratory for Gastrointestinal Infections, National Institute of Health Dr. Ricardo Jorge , Lisbon , Portugal
| | - Fernanda C Domingues
- a CICS-UBI-Health Sciences Research Centre, University of Beira Interior , Covilhã , Portugal and
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257
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Fernandez H, Villanueva MP, Mansilla I, Gonzalez M, Latif F. Arcobacter butzleri and A. cryaerophilus in human, animals and food sources, in southern Chile. Braz J Microbiol 2015. [PMID: 26221100 PMCID: PMC4512057 DOI: 10.1590/s1517-838246120140095] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
The isolation frequency of Arcobacter
species in children with diarrhea, fowls, mammals and food of avian and marine origin was established. In all the samples it was possible to isolate Arcobacter
species corresponding 201 (39.4%) to A. butzleri
and 24 (4.7) to A. cryaerophilus
. Both species were simultaneously isolated in 19 (3.7%) being A. butzleri
the most frequently isolated species.
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Affiliation(s)
- Heriberto Fernandez
- Instituto de Microbiologia Clinica, Universidad Austral de Chile, Valdivia, Chile
| | - Maria Paz Villanueva
- Instituto de Microbiologia Clinica, Universidad Austral de Chile, Valdivia, Chile
| | | | - Mario Gonzalez
- Instituto de Microbiologia Clinica, Universidad Austral de Chile, Valdivia, Chile
| | - Fadua Latif
- Instituto de Microbiologia Clinica, Universidad Austral de Chile, Valdivia, Chile
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258
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Bonerba E, Mottola A, Parisi A, Di Pinto A, Serraino A, Bozzo G, Giacometti F, Ceci E, Tantillo G. Detection of Arcobacter spp. in Mytilus galloprovincialis Samples Collected from Apulia Region. Ital J Food Saf 2015; 4:4583. [PMID: 27800382 PMCID: PMC5076626 DOI: 10.4081/ijfs.2015.4583] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 10/14/2014] [Indexed: 11/29/2022] Open
Abstract
The aim of the study was to evaluate the occurrence of Arcobacter spp. in 20 samples of Mytilus galloprovincialis purchased at fish markets in Apulia region. The detection of Arcobacter spp. was performed, after selective enrichment, on modified charcoal cefoperazone deoxycholate (mCCD) agar supplemented with Cefoperazone, Amphotericin B and Teicoplanin (CAT). In 6 out of the 20 tested samples the presence of Arcobacter spp. was found and confirmed by genus-based polymerase chain reaction. All the isolates were identified as belonging to the species Arcobacter butzleri using 16S rDNA sequencing and BLAST online. The results represent the first report in Italy of A. butzleri detection in marketed Mytilus galloprovincialis. The survey underlines the epidemiological importance of A. butzleri as an emerging pathogen, and highlights that mussels should be considered as a potential cause of foodborne disease outbreak.
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Affiliation(s)
- Elisabetta Bonerba
- Dipartimento di Medicina Veterinaria, Università di Bari , Valenzano (BA)
| | - Anna Mottola
- Dipartimento di Medicina Veterinaria, Università di Bari , Valenzano (BA)
| | - Antonio Parisi
- Istituto Zooprofilattico Sperimentale della Puglia e Basilicata , Putignano (BA)
| | - Angela Di Pinto
- Dipartimento di Medicina Veterinaria, Università di Bari , Valenzano (BA)
| | - Andrea Serraino
- Dipartimento di Scienze Mediche Veterinarie, Alma Mater Studiorum Università di Bologna , Ozzano Emilia (BO), Italy
| | - Giancarlo Bozzo
- Dipartimento di Medicina Veterinaria, Università di Bari , Valenzano (BA)
| | - Federica Giacometti
- Dipartimento di Scienze Mediche Veterinarie, Alma Mater Studiorum Università di Bologna , Ozzano Emilia (BO), Italy
| | - Edmondo Ceci
- Dipartimento di Medicina Veterinaria, Università di Bari , Valenzano (BA)
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259
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Abstract
Arcobacter butzleri is an emerging pathogen that has been implicated as the causative agent of persistent watery diarrhea. We describe a case involving a patient with chronic lymphocytic leukemia who developed invasive A. butzleri bacteremia. This case illustrates the unique challenges involved in diagnosing infections caused by emerging gastrointestinal pathogens.
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260
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Rahimi E. Prevalence and antimicrobial resistance of Arcobacter species isolated from poultry meat in Iran. Br Poult Sci 2015; 55:174-80. [PMID: 24404949 DOI: 10.1080/00071668.2013.878783] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
1. The objective of this study was to determine the prevalence and antimicrobial resistance of Arcobacter spp. isolated from different species of retail poultry meat in Iran. 2. From August 2012 to April 2013, a total of 540 raw poultry meat samples from chicken (n = 100), turkey (n = 100), quail (n = 100), partridge (n = 80), duck (n = 50), ostrich (n = 60) and geese (n = 50) were purchased from randomly selected retail outlets in Shahrekord, Isfahan, Sari and Rasht, Iran. 3. Using culture techniques, 71 of 540 poultry meat samples (13.1%) were positive for Arcobacter spp. The highest prevalence of Arcobacter spp. was found in chicken meat (28.0%), followed by quail (12.0%), duck (11.4%), turkey (11.0%), geese (8.0%), partridge (7.5%) and ostrich (3.3%) meat. The number of A. butzleri isolated from poultry meat samples (90.1%) was significantly higher than A. cryaerophilus (7.1%) and A. skirrowii (2.8%). Significantly more poultry meat samples were found to contain Arcobacter spp. by the PCR assay than by the culture method. 4. Susceptibilities of Arcobacter isolates were determined for 14 antimicrobial drugs using the disk diffusion method. All of the 71 Arcobacter isolates tested were resistant to one or more antimicrobial agents. Resistance to cephalothin and vancomycin (95.8%) was the most common finding, followed by resistance to methicillin, azithromycin and ampicillin. All Arcobacter isolates were susceptible to gentamicin, streptomycin, tetracyclin and kanamycin. 5. The results of this study indicated the importance of poultry meat, especially chicken meat, as potential sources of Arcobacter spp. infection in people. Furthermore, the strains indicated resistance to a broad spectrum of antibiotics.
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Affiliation(s)
- Ebrahim Rahimi
- a Department of Food Hygiene and Public Health, College of Veterinary Medicine , Islamic Azad University, Shahrekord Branch , Shahrekord , Iran
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261
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Arcobacter Species. Food Saf (Tokyo) 2015. [DOI: 10.1016/b978-0-12-800245-2.00012-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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262
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Khoshbakht R, Tabatabaei M, Shirzad Aski H, Seifi S. Occurrence ofArcobacterin Iranian poultry and slaughterhouse samples implicates contamination by processing equipment and procedures. Br Poult Sci 2014; 55:732-6. [DOI: 10.1080/00071668.2014.971223] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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263
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Samarajeewa AD, Hammad A, Masson L, Khan IUH, Scroggins R, Beaudette LA. Comparative assessment of next-generation sequencing, denaturing gradient gel electrophoresis, clonal restriction fragment length polymorphism and cloning-sequencing as methods for characterizing commercial microbial consortia. J Microbiol Methods 2014; 108:103-11. [PMID: 25479430 DOI: 10.1016/j.mimet.2014.11.013] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 11/24/2014] [Accepted: 11/24/2014] [Indexed: 10/24/2022]
Abstract
Characterization of commercial microbial consortia products for human and environmental health risk assessment is a major challenge for regulatory agencies. As a means to develop an approach to assess the potential environmental risk of these products, research was conducted to compare four genomics methods for characterizing bacterial communities; (i) Denaturing Gradient Gel Electrophoresis (DGGE), (ii) Clonal-Restriction Fragment Length Polymorphism (C/RFLP), (iii) partial 16S rDNA amplification, cloning followed by Sanger sequencing (PRACS) and (iv) Next-Generation Sequencing (NGS) based on Ion Torrent technology. A commercially available microbial consortium, marketed as a remediation agent for degrading petroleum hydrocarbon contamination in soil and water, was assessed. The bacterial composition of the commercial microbial product was characterized using the above four methods. PCR amplification of 16S rDNA was performed targeting the variable region V6 for DGGE, C/RFLP and PRACS and V5 for Ion Torrent sequencing. Ion Torrent technology was shown to be a promising tool for initial screening by detecting the majority of bacteria in the consortium that were also detected by DGGE, C/RFLP and PRACS. Additionally, Ion Torrent sequencing detected some of the bacteria that were claimed to be in the product, while three other methods failed to detect these specific bacteria. However, the relative proportions of the microbial composition detected by Ion Torrent were found to be different from DGGE, C/RFLP and PRACS, which gave comparable results across these three methods. The discrepancy of the Ion Torrent results may be due to the short read length generated by this technique and the targeting of different variable regions on the 16S rRNA gene used in this study. Arcobacter spp. a potential pathogenic bacteria was detected in the product by all methods, which was further confirmed using genus and species-specific PCR, RFLP and DNA-based sequence analyses. However, the viability of Arcobacter spp. was not confirmed. This study suggests that a combination of two or more methods may be required to ascertain the microbial constituents of a commercial microbial consortium reliably and for the presence of potentially human pathogenic contaminants.
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Affiliation(s)
- A D Samarajeewa
- Biological Assessment and Standardization Section, Environment Canada, 335 River Road, Ottawa, Ontario, Canada K1V 1C7.
| | - A Hammad
- Biological Assessment and Standardization Section, Environment Canada, 335 River Road, Ottawa, Ontario, Canada K1V 1C7
| | - L Masson
- National Research Council of Canada, 6100 Royalmount Avenue, Montréal, Quebec, Canada H4P 2R2
| | - I U H Khan
- Eastern Cereal and Oilseed Research Centre (ECORC), Agriculture and Agri-Food Canada, 960 Carling Ave., Ottawa, Ontario, Canada K1A 0C6
| | - R Scroggins
- Biological Assessment and Standardization Section, Environment Canada, 335 River Road, Ottawa, Ontario, Canada K1V 1C7
| | - L A Beaudette
- Biological Assessment and Standardization Section, Environment Canada, 335 River Road, Ottawa, Ontario, Canada K1V 1C7
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264
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Collado L, Jara R, Vásquez N, Telsaint C. Antimicrobial resistance and virulence genes of Arcobacter isolates recovered from edible bivalve molluscs. Food Control 2014. [DOI: 10.1016/j.foodcont.2014.06.013] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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265
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Ramees TP, Rathore RS, Bagalkot PS, Sailo B, Mohan HV, Kumar A, Dhama K, Singh RK. Genotyping and genetic diversity of Arcobacter butzleri and Arcobacter cryaerophilus isolated from different sources by using ERIC-PCR from India. Vet Q 2014; 34:211-7. [PMID: 25333916 DOI: 10.1080/01652176.2014.979511] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
BACKGROUND Arcobacters are important zoonotic pathogens and are transmitted through food and water. They are implicated in causing enteritis in animals and humans. Among the Arcobacter species, a wide genetic diversity has been documented, which reflects continuous evolving nature of these pathogens. OBJECTIVES To genotype and to know the genetic diversity of Arcobacter spp. (Arcobacter butzleri and Arcobacter cryaerophilus) isolated from different sources in India. METHODS Enterobacterial repetitive intergenic consensus-polymerase chain reaction (ERIC-PCR) was performed using genomic DNA of 49 Arcobacter isolates (27 A. butzleri and 22 A. cryaerophilus), recovered from a total of 506 samples of chicken meat, poultry skin, dairy cow milk and human stool as template and employing published primers. RESULTS ERIC sequence was found to be present in all the 27 A. butzleri isolates which were grouped into 18 subtypes, while it was present in 20 out of 22 A. cryaerophilus isolates which were grouped into 14 subtypes. Less variation was observed within sequences of both the Arcobacter species as revealed in dendrogram analysis. The genotyping of A. butzleri isolates showed the presence of 2-8 distinct bands (∼150 to ∼1600 bp), while A. cryaerophilus showed 1-10 distinct bands (∼120 to ∼2900 bp). CONCLUSION This study is the first report regarding genetic diversity of Indian Arcobacter isolates using ERIC-PCR. Close clustering between arcobacters of human and animal origin are indicative of probable zoonotic significance. So for these purposes, further explorative studies are suggested which would also help revealing the possibility of epidemiological relationships of different Arcobacter spp. as well as their public health concerns.
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Affiliation(s)
- Thadiyam Puram Ramees
- a Division of Veterinary Public Health , Indian Veterinary Research Institute , Izatnagar, Bareilly , India
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266
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Levican A, Rubio-Arcos S, Martinez-Murcia A, Collado L, Figueras MJ. Arcobacter ebronensis sp. nov. and Arcobacter aquimarinus sp. nov., two new species isolated from marine environment. Syst Appl Microbiol 2014; 38:30-5. [PMID: 25497285 DOI: 10.1016/j.syapm.2014.10.011] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2014] [Revised: 10/28/2014] [Accepted: 10/31/2014] [Indexed: 10/24/2022]
Abstract
Two strains recovered from mussels (F128-2(T)) and sea water (W63(T)) were characterized as Arcobacter sp., but they could not be assigned to any known species using the molecular identification methods specific for this genus (16S rDNA-RFLP and m-PCR) and rpoB gene analysis. The 16S rRNA gene sequence similarity to the type strains of all Arcobacter species ranged from 92.2% to 96.7% with strain F128-2(T), and from 94.1% to 99.4% with strain W63(T), the most similar being A. bivalviorum (CECT 7835(T)) and A. defluvii (CECT 7697(T)), respectively. The phylogenetic analyses of 16S rRNA, and the concatenated sequences of gyrB, gyrA, rpoB, atpA and hsp60 genes confirmed that strains F128-2(T) and W63(T) belonged to two new lineages within the genus Arcobacter. Moreover, both strains showed differential phenotypic characteristics and MALDI-TOF mass spectra from all other Arcobacter species. Therefore, it has been demonstrated the existence of two new Arcobacter species and the proposed names are Arcobacter ebronensis (type strain F128-2(T)=CECT 8441(T)=LMG 27922(T)), and Arcobacter aquimarinus (type strain W63(T)=CECT 8442(T)=LMG 27923(T)).
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Affiliation(s)
- Arturo Levican
- Unitat de Microbiologia, Departament de Ciències Mediques Bàsiques, Facultat de Medicina i Ciències de la Salut, IISPV, Universitat Rovira i Virgili, Reus, Spain; Laboratorio de Patología de Organismos Acuáticos y Biotecnología Acuícola, Facultad de Ciencias Biológicas Universidad Andrés Bello, Viña del Mar, Chile; Interdisciplinary Center for Aquaculture Research (INCAR) , Concepción, Chile
| | - Sara Rubio-Arcos
- Unitat de Microbiologia, Departament de Ciències Mediques Bàsiques, Facultat de Medicina i Ciències de la Salut, IISPV, Universitat Rovira i Virgili, Reus, Spain
| | | | - Luis Collado
- Institute of Biochemistry and Microbiology, Faculty of Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - María José Figueras
- Unitat de Microbiologia, Departament de Ciències Mediques Bàsiques, Facultat de Medicina i Ciències de la Salut, IISPV, Universitat Rovira i Virgili, Reus, Spain.
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267
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Fisher JC, Levican A, Figueras MJ, McLellan SL. Population dynamics and ecology of Arcobacter in sewage. Front Microbiol 2014; 5:525. [PMID: 25426103 PMCID: PMC4224126 DOI: 10.3389/fmicb.2014.00525] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 09/21/2014] [Indexed: 12/20/2022] Open
Abstract
Arcobacter species are highly abundant in sewage where they often comprise approximately 5-11% of the bacterial community. Oligotyping of sequences amplified from the V4V5 region of the 16S rRNA gene revealed Arcobacter populations from different cities were similar and dominated by 1-3 members, with extremely high microdiversity in the minor members. Overall, nine subgroups within the Arcobacter genus accounted for >80% of the total Arcobacter sequences in all samples analyzed. The distribution of oligotypes varied by both sample site and temperature, with samples from the same site generally being more similar to each other than other sites. Seven oligotypes matched with 100% identity to characterized Arcobacter species, but the remaining 19 abundant oligotypes appear to be unknown species. Sequences representing the two most abundant oligotypes matched exactly to the reference strains for A. cryaerophilus group 1B (CCUG 17802) and group 1A (CCUG 17801(T)), respectively. Oligotype 1 showed generally lower relative abundance in colder samples and higher relative abundance in warmer samples; the converse was true for Oligotype 2. Ten other oligotypes had significant positive or negative correlations between temperature and proportion in samples as well. The oligotype that corresponded to A. butzleri, the Arcobacter species most commonly isolated by culturing in sewage studies, was only the eleventh most abundant oligotype. This work suggests that Arcobacter populations within sewer infrastructure are modulated by temperature. Furthermore, current culturing methods used for identification of Arcobacter fail to identify some abundant members of the community and may underestimate the presence of species with affinities for growth at lower temperatures. Understanding the ecological factors that affect the survival and growth of Arcobacter spp. in sewer infrastructure may better inform the risks associated with these emerging pathogens.
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Affiliation(s)
- Jenny C Fisher
- School of Freshwater Sciences, University of Wisconsin-Milwaukee Milwaukee, WI, USA
| | - Arturo Levican
- Laboratorio de Patología de Organismos Acuáticos y Biotecnología Acuícola, Facultad de Ciencias, Universidad Andrés Bello Viña del Mar, Chile ; Interdisciplinary Center for Aquaculture Research (INCAR) Concepción, Chile
| | - María J Figueras
- Unit of Microbiology, Department of Basic Health Sciences, School of Medicine and Health Sciences, Institut d'Investigació Sanitaria Pere Virgili, University Rovira i Virgili Reus, Spain
| | - Sandra L McLellan
- School of Freshwater Sciences, University of Wisconsin-Milwaukee Milwaukee, WI, USA
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268
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Harrison JP, Schratzberger M, Sapp M, Osborn AM. Rapid bacterial colonization of low-density polyethylene microplastics in coastal sediment microcosms. BMC Microbiol 2014; 14:232. [PMID: 25245856 PMCID: PMC4177575 DOI: 10.1186/s12866-014-0232-4] [Citation(s) in RCA: 273] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Accepted: 08/19/2014] [Indexed: 11/21/2022] Open
Abstract
Background Synthetic microplastics (≤5-mm fragments) are emerging environmental contaminants that have been found to accumulate within coastal marine sediments worldwide. The ecological impacts and fate of microplastic debris are only beginning to be revealed, with previous research into these topics having primarily focused on higher organisms and/or pelagic environments. Despite recent research into plastic-associated microorganisms in seawater, the microbial colonization of microplastics in benthic habitats has not been studied. Therefore, we employed a 14-day microcosm experiment to investigate bacterial colonization of low-density polyethylene (LDPE) microplastics within three types of coastal marine sediment from Spurn Point, Humber Estuary, U.K. Results Bacterial attachment onto LDPE within sediments was demonstrated by scanning electron microscopy and catalyzed reporter deposition fluorescence in situ hybridisation (CARD-FISH). Log-fold increases in the abundance of 16S rRNA genes from LDPE-associated bacteria occurred within 7 days with 16S rRNA gene numbers on LDPE surfaces differing significantly across sediment types, as shown by quantitative PCR. Terminal-restriction fragment length polymorphism (T-RFLP) analysis demonstrated rapid selection of LDPE-associated bacterial assemblages whose structure and composition differed significantly from those in surrounding sediments. Additionally, T-RFLP analysis revealed successional convergence of the LDPE-associated communities from the different sediments over the 14-day experiment. Sequencing of cloned 16S rRNA genes demonstrated that these communities were dominated after 14 days by the genera Arcobacter and Colwellia (totalling 84–93% of sequences). Attachment by Colwellia spp. onto LDPE within sediments was confirmed by CARD-FISH. Conclusions These results demonstrate that bacteria within coastal marine sediments can rapidly colonize LDPE microplastics, with evidence for the successional formation of plastisphere-specific bacterial assemblages. Although the taxonomic compositions of these assemblages are likely to differ between marine sediments and the water column, both Arcobacter and Colwellia spp. have previously been affiliated with the degradation of hydrocarbon contaminants within low-temperature marine environments. Since hydrocarbon-degrading bacteria have also been discovered on plastic fragments in seawater, our data suggest that recruitment of hydrocarbonoclastic bacteria on microplastics is likely to represent a shared feature between both benthic and pelagic marine habitats. Electronic supplementary material The online version of this article (doi:10.1186/s12866-014-0232-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | | | | | - A Mark Osborn
- Department of Animal and Plant Sciences, The University of Sheffield, Sheffield, UK.
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269
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Alonso R, Girbau C, Martinez-Malaxetxebarria I, Fernández-Astorga A. Multilocus sequence typing reveals genetic diversity of foodborne Arcobacter butzleri isolates in the North of Spain. Int J Food Microbiol 2014; 191:125-8. [PMID: 25261830 DOI: 10.1016/j.ijfoodmicro.2014.09.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 09/07/2014] [Accepted: 09/14/2014] [Indexed: 10/24/2022]
Abstract
The emerging pathogen Arcobacter butzleri is being increasingly isolated from different animal food products but the routes of its transmission to human are not well established yet. Typing methods would be useful in gaining such knowledge. Here we report the great genetic diversity observed among A. butzleri isolates from different food products. Forty-five isolates were analyzed by Multilocus Sequence Typing (MLST). A total of 157 alleles were identified across all seven loci, ranging from 16 alleles at glnA to 31 at glyA. MLST differentiated the isolates into 34 sequence types (STs), with the majority of isolates containing a unique sequence type. Seventy-four new alleles were identified, which resulted in the assignment of 33 new STs. No association of alleles or STs with food source was observed. For the first time, lateral gene transfer from Arcobacter skirrowii to A. butzleri at the glyA locus is also reported.
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Affiliation(s)
- Rodrigo Alonso
- Department of Immunology, Microbiology and Parasitology, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, Vitoria-Gasteiz 01006, Spain
| | - Cecilia Girbau
- Department of Immunology, Microbiology and Parasitology, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, Vitoria-Gasteiz 01006, Spain
| | - Irati Martinez-Malaxetxebarria
- Department of Immunology, Microbiology and Parasitology, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, Vitoria-Gasteiz 01006, Spain
| | - Aurora Fernández-Astorga
- Department of Immunology, Microbiology and Parasitology, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, Vitoria-Gasteiz 01006, Spain.
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270
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Ferreira S, Queiroz JA, Oleastro M, Domingues FC. Genotypic and phenotypic features of Arcobacter butzleri pathogenicity. Microb Pathog 2014; 76:19-25. [PMID: 25218724 DOI: 10.1016/j.micpath.2014.09.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 09/02/2014] [Accepted: 09/08/2014] [Indexed: 10/24/2022]
Abstract
Even though Arcobacter butzleri has been implicated in some human disease as diarrhoea and bacteraemia, much of its pathogenesis and virulence factors remain unclear. In this work we have compared pathogenic and genotypic properties of six A. butzleri isolates from human and non-human sources. The tested isolates showed to be susceptible to tetracyclines and aminoglycosides, however non-human isolates were all resistant to quinolones. The ability to form biofilms was variable among the tested strains, and all of them showed a weak haemolytic activity. The presence of nine putative virulence genes was determined, with cadF, ciaB, cj1349, mviN, pldA, tlyA being detected in all strains, while irgA (3/6), hecA (5/6), hecB (4/6) were detected only in some strains. High levels of adhesion were observed for A. butzleri on Caco-2 cells, with pre-existing inflammation showing no significant effect on the adherence ability; yet variable levels of invasion were observed. A. butzleri isolates were able to survive intracellularly in Caco-2 cells and to induce a significant up-regulation of interleukin-8 secretion and structural cell rearrangements. These data brings new insights on A. butzleri virulence and highlights its pathogenic potential.
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Affiliation(s)
- Susana Ferreira
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - João A Queiroz
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Mónica Oleastro
- National Institute of Health Dr. Ricardo Jorge, Department of Infectious Diseases, National Reference Laboratory for Gastrointestinal Infections, Av. Padre Cruz, Lisbon, Portugal
| | - Fernanda C Domingues
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal.
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271
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zur Bruegge J, Hanisch C, Einspanier R, Alter T, Gölz G, Sharbati S. Arcobacter butzleri induces a pro-inflammatory response in THP-1 derived macrophages and has limited ability for intracellular survival. Int J Med Microbiol 2014; 304:1209-17. [PMID: 25245281 DOI: 10.1016/j.ijmm.2014.08.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 08/29/2014] [Accepted: 08/30/2014] [Indexed: 02/03/2023] Open
Abstract
Recent case reports have identified Arcobacter (A.) butzleri to be another emerging pathogen of the family Campylobacteraceae causing foodborne diseases. However, little is known about its interaction with the human immune system. As macrophages act as first defense against bacterial infections, we studied for the first time the impact of A. butzleri on human macrophages using THP-1 derived macrophages as an in vitro infection model. Our investigations considered the inflammatory response, intracellular survival and activation of caspases as potential virulence mechanisms employed by A. butzleri. Induction of IL-1α, IL-1ß, IL-6, IL-8, IL-12ß and TNFα demonstrated a pro-inflammatory response of infected macrophages towards A. butzleri. gentamycin protection assays revealed the ability of A. butzleri strains to survive and resist the hostile environment of phagocytic immune cells for up to 22 h. Moreover, initial activation of intitiator- (CASP8) as well as effector caspases (CASP3/7) was observed without the onset of DNA damage, suggesting a potential counter regulation. Intriguingly, we recognized distinct strain specific differences in invasion and survival capabilities. This suggests the existence of isolate dependent phenotype variations and different virulence potentials as known for other intestinal pathogens such as Salmonella enterica ssp.
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Affiliation(s)
- Jennifer zur Bruegge
- Institute of Veterinary Biochemistry, Department of Veterinary Medicine, Freie Universität Berlin, Oertzenweg 19b, 14163 Berlin, Germany.
| | - Carlos Hanisch
- Institute of Veterinary Biochemistry, Department of Veterinary Medicine, Freie Universität Berlin, Oertzenweg 19b, 14163 Berlin, Germany.
| | - Ralf Einspanier
- Institute of Veterinary Biochemistry, Department of Veterinary Medicine, Freie Universität Berlin, Oertzenweg 19b, 14163 Berlin, Germany.
| | - Thomas Alter
- Institute of Food Hygiene, Department of Veterinary Medicine, Freie Universität Berlin, Königsweg 69, 14163 Berlin, Germany.
| | - Greta Gölz
- Institute of Food Hygiene, Department of Veterinary Medicine, Freie Universität Berlin, Königsweg 69, 14163 Berlin, Germany.
| | - Soroush Sharbati
- Institute of Veterinary Biochemistry, Department of Veterinary Medicine, Freie Universität Berlin, Oertzenweg 19b, 14163 Berlin, Germany.
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272
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Arcobacter butzleri in sheep ricotta cheese at retail and related sources of contamination in an industrial dairy plant. Appl Environ Microbiol 2014; 80:7036-41. [PMID: 25192995 DOI: 10.1128/aem.02491-14] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
This study aimed to evaluate Arcobacter species contamination of industrial sheep ricotta cheese purchased at retail and to establish if the dairy plant environment may represent a source of contamination. A total of 32 sheep ricotta cheeses (1.5 kg/pack) packed in a modified atmosphere were purchased at retail, and 30 samples were collected in two sampling sessions performed in the cheese factory from surfaces in contact with food and from surfaces not in contact with food. Seven out of 32 samples (21.9%) of ricotta cheese collected at retail tested positive for Arcobacter butzleri at cultural examination; all positive samples were collected during the same sampling and belonged to the same batch. Ten surface samples (33.3%) collected in the dairy plant were positive for A. butzleri. Cluster analysis identified 32 pulsed-field gel electrophoresis (PFGE) patterns. The same PFGE pattern was isolated from more than one ricotta cheese sample, indicating a common source of contamination, while more PFGE patterns could be isolated in single samples, indicating different sources of contamination. The results of the environmental sampling showed that A. butzleri may be commonly isolated from the dairy processing plant investigated and may survive over time, as confirmed by the isolation of the same PFGE pattern in different industrial plant surface samples. Floor contamination may represent a source of A. butzleri spread to different areas of the dairy plant, as demonstrated by isolation of the same PFGE pattern in different production areas. Isolation of the same PFGE pattern from surface samples in the dairy plant and from ricotta cheese purchased at retail showed that plant surfaces may represent a source of A. butzleri postprocessing contamination in cheeses produced in industrial dairy plants.
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273
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Novel microbiological and spatial statistical methods to improve strength of epidemiological evidence in a community-wide waterborne outbreak. PLoS One 2014; 9:e104713. [PMID: 25147923 PMCID: PMC4141750 DOI: 10.1371/journal.pone.0104713] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Accepted: 07/16/2014] [Indexed: 12/14/2022] Open
Abstract
Failures in the drinking water distribution system cause gastrointestinal outbreaks with multiple pathogens. A water distribution pipe breakage caused a community-wide waterborne outbreak in Vuorela, Finland, July 2012. We investigated this outbreak with advanced epidemiological and microbiological methods. A total of 473/2931 inhabitants (16%) responded to a web-based questionnaire. Water and patient samples were subjected to analysis of multiple microbial targets, molecular typing and microbial community analysis. Spatial analysis on the water distribution network was done and we applied a spatial logistic regression model. The course of the illness was mild. Drinking untreated tap water from the defined outbreak area was significantly associated with illness (RR 5.6, 95% CI 1.9–16.4) increasing in a dose response manner. The closer a person lived to the water distribution breakage point, the higher the risk of becoming ill. Sapovirus, enterovirus, single Campylobacter jejuni and EHEC O157:H7 findings as well as virulence genes for EPEC, EAEC and EHEC pathogroups were detected by molecular or culture methods from the faecal samples of the patients. EPEC, EAEC and EHEC virulence genes and faecal indicator bacteria were also detected in water samples. Microbial community sequencing of contaminated tap water revealed abundance of Arcobacter species. The polyphasic approach improved the understanding of the source of the infections, and aided to define the extent and magnitude of this outbreak.
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274
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Bagalakote P, Rathore R, Ramees T, Mohan H, Sumankumar M, Agarwal R, Kumar A, Dhama K. Molecular Characterization of Arcobacter Isolates Using Randomly
Amplified Polymorphic DNA-Polymerase Chain Reaction (RAPD-PCR). ACTA ACUST UNITED AC 2014. [DOI: 10.3923/ajava.2014.543.555] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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275
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Soffer N, Zaneveld J, Vega Thurber R. Phage-bacteria network analysis and its implication for the understanding of coral disease. Environ Microbiol 2014; 17:1203-18. [DOI: 10.1111/1462-2920.12553] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 06/29/2014] [Indexed: 01/06/2023]
Affiliation(s)
- Nitzan Soffer
- Department of Microbiology; Oregon State University; 220 Nash Hall Corvallis OR 97331 USA
| | - Jesse Zaneveld
- Department of Microbiology; Oregon State University; 220 Nash Hall Corvallis OR 97331 USA
| | - Rebecca Vega Thurber
- Department of Microbiology; Oregon State University; 220 Nash Hall Corvallis OR 97331 USA
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276
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Yesilmen S, Vural A, Erkan ME, Yildirim IH. Prevalence and antimicrobial susceptibility of Arcobacter species in cow milk, water buffalo milk and fresh village cheese. Int J Food Microbiol 2014; 188:11-4. [PMID: 25064812 DOI: 10.1016/j.ijfoodmicro.2014.07.006] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 07/09/2014] [Accepted: 07/10/2014] [Indexed: 12/13/2022]
Abstract
In this study, the presence of Arcobacter spp. was examined in cow milk (n=50), water buffalo (WB) milk (n=50) and fresh village cheese (n=50) samples. The 16S rDNA-RFLP method was used for the identification of Arcobacter spp. The disc diffusion method was used to investigate the susceptibility of all strains identified to 18 different antimicrobial substances. The most commonly isolated Arcobacter species were found to be Arcobacter butzleri (38.89%), Arcobacter cryaerophilus (22.23%) and Arcobacter skirrowii (11.12%) in cow milk; A. cryaerophilus (33.33%), Arcobacter cibarius (20.83%) and A. butzleri (12.50%) in WB milk; and A. skirrowii (28.57%), A. butzleri (21.43%) and A. cryaerophilus (14.29%) in fresh village cheese. This is the first study to identify the presence of Arcobacter nitrofigilis, Arcobacter cloacae, Arcobacter halophilus, Arcobacter bivalviorum and A. cibarius species in analyzed samples. It was found that all of the A. cryaerophilus (n:16) isolates were resistant to cefoperazone, cloxacillin and penicillin G; all of the A. skirrowii (n:12) and A. butzleri (n:10) isolates were resistant to cefoperazone, tetracycline, ampicillin, erythromycin, cloxacillin and penicillin G. It was concluded that cow milk, WB milk and fresh village cheese samples are an important source of Arcobacter species and pose a risk to public health.
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Affiliation(s)
- Simten Yesilmen
- University of Dicle, Faculty of Veterinary Medicine, Department of Microbiology, 21280 Diyarbakir, Turkey
| | - Aydin Vural
- University of Dicle, Faculty of Veterinary Medicine, Department of Food Hygiene and Technology, 21280 Diyarbakir, Turkey.
| | - Mehmet Emin Erkan
- University of Dicle, Faculty of Veterinary Medicine, Department of Food Hygiene and Technology, 21280 Diyarbakir, Turkey
| | - Ibrahim Halil Yildirim
- University of Dicle, Faculty of Veterinary Medicine, Department of Genetics, 21280 Diyarbakir, Turkey
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277
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Mohan HV, Rathore RS, Dhama K, Ramees TP, Patya A, Bagalko PS, Wani MY, Bhilegaonk KN, Kumar A. Prevalence of Arcobacter spp. in Humans, Animals and Foods of Animal
Origin in India Based on Cultural Isolation, Antibiogram, PCR and Multiplex
PCR Detection. ACTA ACUST UNITED AC 2014. [DOI: 10.3923/ajava.2014.452.466] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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278
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Gilbert MJ, Kik M, Timmerman AJ, Severs TT, Kusters JG, Duim B, Wagenaar JA. Occurrence, diversity, and host association of intestinal Campylobacter, Arcobacter, and Helicobacter in reptiles. PLoS One 2014; 9:e101599. [PMID: 24988130 PMCID: PMC4079654 DOI: 10.1371/journal.pone.0101599] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Accepted: 06/09/2014] [Indexed: 11/19/2022] Open
Abstract
Campylobacter, Arcobacter, and Helicobacter species have been isolated from many vertebrate hosts, including birds, mammals, and reptiles. Multiple studies have focused on the prevalence of these Epsilonproteobacteria genera in avian and mammalian species. However, little focus has been given to the presence within reptiles, and their potential zoonotic and pathogenic roles. In this study, occurrence, diversity, and host association of intestinal Epsilonproteobacteria were determined for a large variety of reptiles. From 2011 to 2013, 444 cloacal swabs and fecal samples originating from 417 predominantly captive-held reptiles were screened for Epsilonproteobacteria. Campylobacter, Arcobacter, and Helicobacter genus specific PCRs were performed directly on all samples. All samples were also cultured on selective media and screened for the presence of Epsilonproteobacteria. Using a tiered approach of AFLP, atpA, and 16S rRNA sequencing, 432 Epsilonproteobacteria isolates were characterized at the species level. Based on PCR, Campylobacter, Arcobacter, and Helicobacter were detected in 69.3% of the reptiles; 82.5% of the chelonians, 63.8% of the lizards, and 58.0% of the snakes were positive for one or more of these genera. Epsilonproteobacteria were isolated from 22.1% of the reptiles and were isolated most frequently from chelonians (37.0%), followed by lizards (19.6%) and snakes (3.0%). The most commonly isolated taxa were Arcobacter butzleri, Arcobacter skirrowii, reptile-associated Campylobacter fetus subsp. testudinum, and a putative novel Campylobacter taxon. Furthermore, a clade of seven related putative novel Helicobacter taxa was isolated from lizards and chelonians. This study shows that reptiles carry various intestinal Epsilonproteobacteria taxa, including several putative novel taxa.
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Affiliation(s)
- Maarten J. Gilbert
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
- * E-mail:
| | - Marja Kik
- Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Arjen J. Timmerman
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Tim T. Severs
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Johannes G. Kusters
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Birgitta Duim
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
- WHO Collaborating Center for Campylobacter/OIE Reference Laboratory for Campylobacteriosis, Utrecht, The Netherlands
| | - Jaap A. Wagenaar
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
- WHO Collaborating Center for Campylobacter/OIE Reference Laboratory for Campylobacteriosis, Utrecht, The Netherlands
- Central Veterinary Institute of Wageningen UR, Lelystad, The Netherlands
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279
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Fallas-Padilla KL, Rodríguez-Rodríguez CE, Fernández Jaramillo H, Arias Echandi ML. Arcobacter: comparison of isolation methods, diversity, and potential pathogenic factors in commercially retailed chicken breast meat from Costa Rica. J Food Prot 2014; 77:880-4. [PMID: 24853508 DOI: 10.4315/0362-028x.jfp-13-368] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Arcobacter species have been recognized as potential food- and waterborne pathogens. The lack of standardized isolation methods and the relatively scarce knowledge about their prevalence and distribution as emerging pathogens are due to the limitations in their detection and identification. This study aimed to determine the presence and the identification of Arcobacter in chicken breast samples commercially retailed in San José, Costa Rica, as well as to describe the adherence and invasive potential of the strains to human cells (HEp-2). Fifty chicken breast samples were collected from retail markets in the metropolitan area of the country. Six different isolation methodologies were applied for the isolation of Arcobacter. Isolation strategies consisted of combinations of enrichments in de Boer or Houf selective broths and subsequent isolation in blood agar (directly or with a previous passive membrane filtration step) or Arcobacter selective agar. Suspicious colonies were identified with a genus-specific PCR, whereas species-level identification was achieved with a multiplex PCR. The overall isolation frequency of Arcobacter was 56%. From the isolation strategies, the combination of enrichment in Houf selective broth followed by filtration on blood agar showed the best performance, with a sensitivity of 89% and a specificity of 84%. A total of 46 isolates were confirmed as Arcobacter with the genus-specific PCR, from which 27 (59%) corresponded to Arcobacter butzleri, 9 (19%) to Arcobacter cryaerophilus, and 10 (22%) were not identified with this multiplex PCR. Regarding the potential pathogenicity, 75% of the isolates presented adherence to HEp-2 cells, while only 22% were invasive to that cell line. All invasive strains were A. butzleri or nonidentified strains. The results show the presence of potentially pathogenic Arcobacter in poultry and recognize the importance it should receive as a potential foodborne pathogen from public health authorities.
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Affiliation(s)
- Karolina L Fallas-Padilla
- Tropical Disease Research Center and Microbiology Faculty, Universidad de Costa Rica, 2060 San José, Costa Rica
| | | | | | - María Laura Arias Echandi
- Tropical Disease Research Center and Microbiology Faculty, Universidad de Costa Rica, 2060 San José, Costa Rica.
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280
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Resveratrol against Arcobacter butzleri and Arcobacter cryaerophilus: activity and effect on cellular functions. Int J Food Microbiol 2014; 180:62-8. [PMID: 24786554 DOI: 10.1016/j.ijfoodmicro.2014.04.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 04/01/2014] [Accepted: 04/02/2014] [Indexed: 01/24/2023]
Abstract
The frequent isolation of Arcobacter butzleri and Arcobacter cryaerophilus from food samples makes it imperative to search for potential compounds able to inhibit the development of these bacteria. Taking this into consideration, this study focuses on the antimicrobial activity of resveratrol and its mechanism of action against A. butzleri and A. cryaerophilus. The activity of resveratrol was assessed by a microdilution method and time-kill curves. Resveratrol effect on cellular functions was assessed by flow cytometry evaluating intracellular DNA content and metabolic activity. Ethidium bromide (EtBr) accumulation in the presence of resveratrol was also evaluated, as well as the susceptibility to resveratrol in the presence of phenylalanine-arginine β-naphthylamide (PAβN). Scanning electron microscopy (SEM) was used to further evaluate cell damage caused by resveratrol. Resveratrol presented MIC values of 100 and 50μg/mL to A. butzleri and A. cryaerophilus, respectively. Based on the time-kill curves, resveratrol exhibited bactericidal activity, leading to a ≥3log10CFU/mL reduction of initial inoculums, for A. butzleri exponential phase cells incubated for 6h with 1× MIC or with 2× MIC after 24h for stationary phase cells. For A. cryaerophilus cells in exponential growth phase, 99.9% killing was achieved after 24h incubation with 2× MIC, whereas, for stationary phase cells, bactericidal activity was only detected after incubation with 4× MIC. Incubation with resveratrol led to a decrease in both intracellular DNA content and metabolic activity. An increase in the accumulation of EtBr was observed in the presence of resveratrol, and the efflux pump inhibitor PAβN reduced the MIC of resveratrol. SEM analysis revealed disintegration of A. butzleri cells treated with resveratrol, whereas no morphological alteration was observed for A. cryaerophilus cells. Resveratrol has a good anti-Arcobacter activity, and the results obtained suggest that this compound could act through several different mechanisms in the inhibition of this microorganism. The results encourage the use of this compound for the development of potential strategies to control Arcobacter in food products.
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281
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Merga JY, Royden A, Pandey AK, Williams NJ. Arcobacter spp. isolated from untreated domestic effluent. Lett Appl Microbiol 2014; 59:122-6. [PMID: 24666283 DOI: 10.1111/lam.12256] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 03/19/2014] [Accepted: 03/20/2014] [Indexed: 01/08/2023]
Abstract
UNLABELLED Arcobacter butzleri and Arcobacter cryaerophilus were isolated from samples of raw untreated domestic sewage influent from nine separate wastewater treatment facilities in Cheshire, UK. This is the first report of Arcobacter spp. from sewage in the UK and suggests that Arcobacter spp. may be present in the human community. SIGNIFICANCE AND IMPACT OF THE STUDY Studies have shown Arcobacter spp. to be present in domestic sewage in several European countries. This study supports previous findings with the first report of Arcobacter spp. in domestic sewage in the UK. This study suggests that Arcobacter spp. is present amongst local human populations, implicating it as an underestimated gastrointestinal pathogen in the UK and contributing to our understanding of this emerging pathogen and its presence within the UK. Providing a confirmation of the presence of Arcobacter in sewage, which supports previous studies, this paper will appeal to fellow researchers of Arcobacter, as well as healthcare and water treatment professionals concerned with microbiology, water safety and gastroenterology, potentially having a wide impact.
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Affiliation(s)
- J Y Merga
- Department of Epidemiology and Population Health, Institute of Infection and Global Health, University of Liverpool, Neston, UK
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282
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González I, Fernández-Tomé S, García T, Martín R. Genus-specific PCR assay for screening Arcobacter spp. in chicken meat. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2014; 94:1218-1224. [PMID: 24105785 DOI: 10.1002/jsfa.6401] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Revised: 09/06/2013] [Accepted: 09/17/2013] [Indexed: 06/02/2023]
Abstract
BACKGROUND The number of emerging pathogenic species described within the genus Arcobacter has increased rapidly during the last few years. In this work a genus-specific polymerase chain reaction (PCR) assay was developed for detection of the species of Arcobacter most commonly associated with foods. The assay uses primers designed to amplify an 85 bp DNA fragment on the 16S rRNA gene and was applied to the detection of Arcobacter spp. in retail chicken meat. RESULTS Primer specificity was tested against a panel of Arcobacter spp., related Campylobacter and Helicobacter spp. and other food bacteria. Arcobacter primers consistently and selectively amplified the expected DNA fragment in all tested Arcobacter spp. Bacterial control primers confirmed the presence of amplifiable DNA in the samples. The applicability of the PCR assay to food was validated through screening of fresh retail chicken samples for the presence of Arcobacter spp., with a result of 45% (23 out of 51) positive samples. CONCLUSION The genus-specific PCR assay developed has the potential to be used as a quick and sensitive alternative method for the survey of Arcobacter contamination in meats.
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Affiliation(s)
- Isabel González
- Departamento de Nutrición, Bromatología y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Complutense de Madrid, E-28040, Madrid, Spain
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283
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Medina G, Flores-Martin S, Fonseca B, Otth C, Fernandez H. Mechanisms associated with phagocytosis of Arcobacter butzleri by Acanthamoeba castellanii. Parasitol Res 2014; 113:1933-42. [PMID: 24652445 DOI: 10.1007/s00436-014-3842-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 02/24/2014] [Indexed: 11/28/2022]
Abstract
Acanthamoeba castellanii is a free-living amoeba widely found in environmental matrices such as soil and water. Arcobacter butzleri is an emerging potential zoonotic pathogen that can be isolated from environmental water sources, where they can establish endosymbiotic relationships with amoebas. The aim of this study was to describe the implication of mannose-binding proteins and membrane-associated receptors of glucose and galactose present in the amoebic membrane, during the attachment of Arcobacter butzleri by blocking with different saccharides. Another objective was to describe the signaling pathways involved in phagocytosis of these bacteria using specific inhibitors and analyze the implication of phagolysosome formation on the survival of Arcobacter butzleri inside the amoeba. We infer that the attachment of Arcobacter butzleri to the amoeba is a process which involves the participation of mannose-binding proteins and membrane-associated receptors of glucose and galactose present in the amoeba. We also demonstrated an active role of protozoan actin polymerization in the phagocytosis of Arcobacter butzleri and a critical involvement of PI3K and RhoA pathways. Further, we demonstrated that the tyrosine kinase-induced actin polymerization signal is essential in Acanthamoeba-mediated bacterial uptake. Through phagolysosomal formation analysis, we conclude that the survival of Arcobacter butzleri inside the amoeba could be related with the ability to remain inside vacuoles not fused with lysosomes, or with the ability to retard the fusion between these structures. All these results help the understanding of the bacterial uptake mechanisms used by Acanthamoeba castellanii and contribute to evidence of the survival mechanisms of Arcobacter butzleri.
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284
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Miller W, Yee E, Jolley K, Chapman M. Use of an improved atpA
amplification and sequencing method to identify members of the Campylobacteraceae and Helicobacteraceae. Lett Appl Microbiol 2014; 58:582-90. [DOI: 10.1111/lam.12228] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 01/15/2014] [Accepted: 02/05/2014] [Indexed: 11/30/2022]
Affiliation(s)
- W.G. Miller
- USDA; ARS; WRRC; Produce Safety and Microbiology; Albany CA USA
| | - E. Yee
- USDA; ARS; WRRC; Produce Safety and Microbiology; Albany CA USA
| | - K.A. Jolley
- Department of Zoology; University of Oxford; Oxford UK
| | - M.H. Chapman
- USDA; ARS; WRRC; Produce Safety and Microbiology; Albany CA USA
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285
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Serraino A, Giacometti F. Short communication: occurrence of Arcobacter species in industrial dairy plants. J Dairy Sci 2014; 97:2061-5. [PMID: 24534515 DOI: 10.3168/jds.2013-7682] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Accepted: 12/30/2013] [Indexed: 12/25/2022]
Abstract
The present study investigated the presence of Arcobacter spp. in industrial dairy plants. Between February and September 2013, pasteurized milk used for cheesemaking, processing and cleaning water, cheese, and environmental samples from different plant sites, including surfaces in contact or not in contact with food, were sampled. A total of 126 samples were analyzed by the cultural method and isolates were identified by multiplex PCR. Arcobacter spp. were isolated from 22 of 75 environmental samples (29.3%): of them, 22.7% were surfaces in contact with food and 38.7% surfaces not in contact with food. A total of 135 Arcobacter spp. isolates were obtained; of these, 129 and 6 were identified as Arcobacter butzleri and Arcobacter cryaerophilus, respectively. All food processing water and pasteurized milk samples were negative for Arcobacter species. We were not able to determine the primary source of contamination, but the isolation of both A. butzleri and A. cryaerophilus in surfaces in contact with food before and during manufacturing suggests that Arcobacter spp. are not or are only partially affected by routine sanitizing procedures in the industrial dairy plants studied. The efficacy of sanitizing procedures should be evaluated and further studies are needed to determine whether certain Arcobacter strains persist for long periods of time in industrial dairy plants and whether they can survive in different types of cheese in cases of postprocessing contamination.
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Affiliation(s)
- A Serraino
- Department of Veterinary Medical Sciences, Via Tolara di Sopra 50, 40064 Ozzano Emilia (BO), Italy
| | - F Giacometti
- Department of Veterinary Medical Sciences, Via Tolara di Sopra 50, 40064 Ozzano Emilia (BO), Italy.
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286
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Figueras MJ, Levican A, Pujol I, Ballester F, Rabada Quilez MJ, Gomez-Bertomeu F. A severe case of persistent diarrhoea associated with Arcobacter cryaerophilus but attributed to Campylobacter sp. and a review of the clinical incidence of Arcobacter spp. New Microbes New Infect 2014; 2:31-7. [PMID: 25356338 PMCID: PMC4184587 DOI: 10.1002/2052-2975.35] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2013] [Revised: 12/16/2013] [Accepted: 12/19/2013] [Indexed: 01/19/2023] Open
Abstract
Although rarely, Arcobacter spp. have been associated with diarrhoea and bacteraemia. We report a persistent case in a healthy 26-year-old Spanish male of bloody diarrhoea, which was attributed to Campylobacter but in fact was caused by Arcobacter cryaerophilus, as determined by sequencing of the rpoB gene. The isolate was re-identified by matrix-assisted laser desorption ionization time of flight (MALDI-TOF) and genotyped for five putative virulence genes and for seven genes included in the Arcobacter multilocus sequence typing database. The low score obtained by MALDI-TOF indicates the need to complement the database with more isolates. Only the ciaB gene, which encodes for an invasin, was detected. Despite the isolate belonging to a new sequence type, three of the alleles (glnA, pgm and tkt) had been found previously in isolates from faeces of patients with diarrhoea. This study, together with the reviewed literature, indicates that Arcobacter can produce bacteraemia and that the isolation from patients with diarrhoea range from 0.11% to 1.25%. This study also demonstrates that Arcobacter species are confused with Campylobacter spp., as previously suggested. This is one of the factors that leads to underestimation of their incidence together with the use of inappropriate detection and identification methods.
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Affiliation(s)
- M J Figueras
- Unitat de Microbiologia, Departament de Cièancies Mediques Básiques, Facultad de Medicina i Ciencias de la Salud, IISPV, Universidad Rovira i Virgili Sant Lorenzo 21, 43201, Reus, Spain
| | - A Levican
- Unitat de Microbiologia, Departament de Cièancies Mediques Básiques, Facultad de Medicina i Ciencias de la Salud, IISPV, Universidad Rovira i Virgili Sant Lorenzo 21, 43201, Reus, Spain ; Laboratorio de Patología de Organismos Acuáticos y Biotecnolog\xEDa Acuícola, Facultad de Ciencias Biológicasl, Facultad de Ciencias Biológicas, Universidad Andrés Bello Viña del Mar, Chile
| | - I Pujol
- Unitat de Microbiologia, Departament de Cièancies Mediques Básiques, Facultad de Medicina i Ciencias de la Salud, IISPV, Universidad Rovira i Virgili Sant Lorenzo 21, 43201, Reus, Spain ; Servei de Microbiologia, Hospital Universitari Sant Joan de Reus Reus, Spain, Tarragona, Spain
| | - F Ballester
- Unitat de Microbiologia, Departament de Cièancies Mediques Básiques, Facultad de Medicina i Ciencias de la Salud, IISPV, Universidad Rovira i Virgili Sant Lorenzo 21, 43201, Reus, Spain ; Servei de Microbiologia, Hospital Universitari Sant Joan de Reus Reus, Spain, Tarragona, Spain
| | | | - F Gomez-Bertomeu
- Servei de Microbiologia, Hospital Universitari Joan XXII Tarragona, Spain
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287
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Giacometti F, Serraino A, Pasquali F, De Cesare A, Bonerba E, Rosmini R. Behavior ofArcobacter butzleriandArcobacter cryaerophilusin Ultrahigh-Temperature, Pasteurized, and Raw Cow's Milk Under Different Temperature Conditions. Foodborne Pathog Dis 2014; 11:15-20. [DOI: 10.1089/fpd.2013.1597] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Affiliation(s)
- Federica Giacometti
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Andrea Serraino
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | | | | | | | - Roberto Rosmini
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
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288
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Li K, Lin K, Li Z, Zhang Q, Song F, Che Z, Chen G, Xiang W. Spoilage and Pathogenic Bacteria Associated with Spoilage Process of Sichuan Pickle during the Spontaneous Fermentation. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2014. [DOI: 10.3136/fstr.20.899] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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289
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Hrušková L, Mot’ková P, Vytřasová J. Multiplex polymerase chain reaction using ethidium monoazide and propidium monoazide for distinguishing viable and dead cells of arcobacters in biofilm. Can J Microbiol 2013; 59:797-802. [DOI: 10.1139/cjm-2013-0635] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This paper concerns the formation of biofilm in bacteria of the genus Arcobacter. A multiplex polymerase chain reaction (PCR) method was introduced and optimized for detecting biofilm while using the intercalating dyes ethidium monoazide (EMA) and propidium monoazide (PMA), first for analysis of strains of the genus Arcobacter from a collection, and then applied to samples of prepared biofilms. The results of the study indicate considerable variability among species of bacteria within the genus Arcobacter. The EMA–PMA PCR method can distinguish viable cells from dead cells and is therefore suitable for determining the viability of cells.
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Affiliation(s)
- Lucie Hrušková
- Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Petra Mot’ková
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Jarmila Vytřasová
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
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290
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Ferreira S, Júlio C, Queiroz JA, Domingues FC, Oleastro M. Molecular diagnosis of Arcobacter and Campylobacter in diarrhoeal samples among Portuguese patients. Diagn Microbiol Infect Dis 2013; 78:220-5. [PMID: 24361090 DOI: 10.1016/j.diagmicrobio.2013.11.021] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 11/14/2013] [Accepted: 11/16/2013] [Indexed: 11/16/2022]
Abstract
The present study was conducted to investigate the prevalence and diversity of Arcobacter and Campylobacter spp. in 298 stool samples of patients with diarrhoea, collected from 22 Portuguese hospitals, between September and November 2012. Detection of Arcobacter and Campylobacter spp. was performed using molecular-based detection techniques, such as real-time fluorescence resonance energy transfer PCR, species-specific PCR, and sequencing of amplified PCR products. Overall, 1.3% of the samples were positive for Arcobacter butzleri and 0.3% for Arcobacter cryaerophilus. Campylobacter spp. were found in 31.9% of diarrhoeic faeces. Campylobacter jejuni and Campylobacter concisus were the most prevalent species (13.7% and 8.0%, respectively). The prevalence of Arcobacter and Campylobacter spp. was significantly different between children and adults (39.7% versus 22.8%, P = 0.003). We underline the high prevalence of these pathogens in diarrhoeal samples among Portuguese patients, with particular relevance in the paediatric age group.
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Affiliation(s)
- Susana Ferreira
- CICS-UBI-Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Cláudia Júlio
- National Institute of Health Dr. Ricardo Jorge, Department of Infectious Diseases, National Reference Laboratory for Gastrointestinal Infections, Av. Padre Cruz, Lisbon, Portugal
| | - João A Queiroz
- CICS-UBI-Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Fernanda C Domingues
- CICS-UBI-Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal.
| | - Mónica Oleastro
- National Institute of Health Dr. Ricardo Jorge, Department of Infectious Diseases, National Reference Laboratory for Gastrointestinal Infections, Av. Padre Cruz, Lisbon, Portugal
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291
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Tabatabaei M, Shirzad Aski H, Shayegh H, Khoshbakht R. Occurrence of six virulence-associated genes in Arcobacter species isolated from various sources in Shiraz, Southern Iran. Microb Pathog 2013; 66:1-4. [PMID: 24201143 DOI: 10.1016/j.micpath.2013.10.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2013] [Revised: 10/19/2013] [Accepted: 10/23/2013] [Indexed: 11/29/2022]
Abstract
In humans, arcobacters are associated with watery diarrhea and septicemia. Although, recently, more cases of diarrhea have been caused by Arcobacter species, very little is known about its pathogenesis. Therefore, the aim of this study was to evaluate the presence of six putative Arcobacter virulence genes (cadF, ciaB, cj1349, mviN, pldA, and tlyA), in a set of 113 Arcobacter butzleri, 40 Arcobacter cryaerophilus, and 15 Arcobacter skirrowii isolates that were recovered from various origins. The isolates were confirmed on the basis of polymerase chain reaction (PCR) amplification of genus and species specific PCR for determining three species. For confirmed isolates, PCR was carried out for the presence of virulence genes using specific primers. All A. butzleri isolates carried all six genes. For A. cryaerophilus and A. skirrowii, the cadF gene was detected just in 55 and 53.3%, ciaB in 97.5 and 86.6%, cj1349 in 45 and 60%, mviN in 90 and 80%, pldA in 32.5 and 13.3%, and tlyA in 37.5 and 40%, respectively. For A. cryaerophilus and A. skirrowii, the genes ciaB and mviN were significantly more prevalent than other virulence markers (P ≤ 0.05). The findings revealed that many of the important Arcobacter strains (86%) have these putative virulence genes which can be potential pathogenic properties for humans.
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Affiliation(s)
- Mohammad Tabatabaei
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, 71345-1731 Shiraz, Iran.
| | - Hesamaddin Shirzad Aski
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, 71345-1731 Shiraz, Iran.
| | - Hossein Shayegh
- School of Veterinary Medicine, Shiraz University, Shiraz, Iran.
| | - Rahem Khoshbakht
- Department of Food Hygiene, Faculty of Veterinary Medicine, Amol University of Special Modern Technologies, Amol, Iran.
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292
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Higher water temperature and incubation under aerobic and microaerobic conditions increase the recovery and diversity of Arcobacter spp. from shellfish. Appl Environ Microbiol 2013; 80:385-91. [PMID: 24185851 DOI: 10.1128/aem.03014-13] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Some Arcobacter species are considered emerging food-borne and waterborne pathogens, and shellfish have been suggested as one of their reservoirs. However, only a few studies have investigated the presence of Arcobacter in this kind of food. This study assesses the prevalence and diversity of Arcobacter spp. in shellfish by multiplex PCR (m-PCR) and culturing methods (under different atmospheric conditions) and evaluates the possible influence of environmental parameters (temperature, salinity, and harvesting bay). Arcobacter was detected by m-PCR and/or culturing in 61 (29.9%) of 204 shellfish samples. Of the positive samples by culturing, 41.1% were obtained under only aerobic incubation conditions, while 23.2% were obtained under only microaerobic conditions. Of 476 investigated isolates, 118 belonged to different enterobacterial repetitive intergenic consensus (ERIC)-PCR genotypes (strains) and to 11 different species. This study shows the highest diversity of Arcobacter species ever observed in samples from any origin. The most prevalent species was Arcobacter butzleri (60.2%), followed by Arcobacter molluscorum (21.2%). The prevalence of Arcobacter was significantly higher during the summer than in other seasons, being associated with an increase in water temperature. Results confirm that shellfish are a reservoir for a remarkable diversity of Arcobacter spp.
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293
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Levican A, Figueras MJ. Performance of five molecular methods for monitoring Arcobacter spp. BMC Microbiol 2013; 13:220. [PMID: 24090042 PMCID: PMC3850767 DOI: 10.1186/1471-2180-13-220] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Accepted: 09/27/2013] [Indexed: 01/20/2023] Open
Abstract
Background Bacteria belonging to the Arcobacter genus are emerging enteropathogens and potential zoonotic agents. Their taxonomy has evolved very rapidly, and there are presently 18 recorded species. The prevalence of species belonging to Arcobacter is underestimated because of the limitations of currently available methods for species identification. The aim of this study was to compare the performance of five PCR based methods that target regions of 16S rRNA, 23S rRNA or gyrA genes to identify Arcobacter species, and to review previous results reported in the literature using these methods. Results The five tested methods were found not to be reliable. They misidentified between 16.8% and 67.4% of the studied strains; this was dependent upon the target regions of the tested genes. The worst results obtained were for the identification of Arcobacter cryaerophilus and Arcobacter butzleri when the 23S rRNA gene was used as the target. These species were confused with many non-targeted species. Conclusion Our results suggest that the known diversity of Arcobacter spp. in different environments could be expanded if reliable identification methods are applied in future studies.
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Affiliation(s)
- Arturo Levican
- Unitat de Microbiologia, Departament de Ciències Mediques Bàsiques, Facultat de Medicina i Ciències de la Salut, IISPV, Universitat Rovira i Virgili, Reus, Spain.
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294
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Bath GF, Leask R, Pettey KP, Coetzee DJ. Abortions in sheep associated with Arcobacter skirrowii infection. J S Afr Vet Assoc 2013. [DOI: 10.4102/jsava.v84i1.952] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
The history, circumstances, clinical signs, post mortem lesions, morbidity, mortality and laboratory findings are described in an abortion storm in sheep that occurred in Mpumalanga, South Africa, associated with infection with Arcobacter skirrowii. Altogether, about 200 Suffolk Down ewes lost 60 lambs in late pregnancy or at term. Although only three foetuses were submitted for investigation, two had signs consistent with a diagnosis of A. skirrowii infection and the organism was isolated from the placentas of both specimens. No abortions had occurred in previous years, or have subsequently. There were no animal introductions prior to the outbreak that could have indicated a source of infection. One stillborn lamb submitted subsequently had lesions consistent with dystocia, and the history and circumstantial evidence indicated that dystocia had been a factor in several more losses. No ewes or rams had shown signs of diarrhoea or other diseases associated with A. skirrowii infection. Twenty-two faecal, preputial and vaginal swab specimens taken from six rams and 13 ewes after the abortion event were all negative for A. skirrowii. This is the first report of abortions in sheep associated with A. skirrowiiin South Africa. Because the genus Arcobacter is similar to Campylobacter, it is possible that infection has gone unrecognised in the past. Veterinarians and laboratories should take note and include this genus in the list of potential abortifacient organisms. The possible role of Arcobacter species in other diseases like enteritis and mastitis, as well as the potential role as a zoonosis, must be borne in mind.
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295
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Yap DYH, Kwan LPY, To KKW, Chan TM. Arcobacter peritonitis after fluoroscopic repositioning of a Tenckhoff catheter. Perit Dial Int 2013; 33:222-3. [PMID: 23478380 DOI: 10.3747/pdi.2012.00114] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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296
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Bioaccumulation experiments in mussels contaminated with the food-borne pathogen Arcobacter butzleri: preliminary data for risk assessment. BIOMED RESEARCH INTERNATIONAL 2013; 2013:153419. [PMID: 24102050 PMCID: PMC3786461 DOI: 10.1155/2013/153419] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 07/16/2013] [Accepted: 08/07/2013] [Indexed: 11/17/2022]
Abstract
The aim of this study was to evaluate, at a laboratory scale, the ability of this microorganism to grow in seawater and bioaccumulate in mussels (Mytilus galloprovincialis) maintained in constantly aerated tanks, containing twenty litres of artificial seawater. Three concentrations of A. butzleri LMG 10828T were tested (about 5 × 106 CFU/mL, 5 × 104 CFU/mL, and 5 × 102 CFU/mL). Following contamination, enumeration of A. butzleri was performed from water and mussels each day, for up to 96 h. Three contamination experiments with artificial seawater in absence of mussels were also performed in the same manner. In the experiments with mussels, A. butzleri declined in water of approximately 1 log every 24 h from the contamination. In artificial seawater without mussels the concentration of A. butzleri remained on the same logarithmic level in the first 48 h and then decreased of about 1 log every 24 hours. In mussels, the concentration was approximately 2 log lower than the exposition level after 24 h from the contamination, and then it decreased exponentially of 1 log every 24 h. Our findings suggest that in the experimental conditions tested A. butzleri is neither able to effectively grow in seawater nor bioaccumulate in mussels, at least in the free and cultivable form.
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297
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Revez J, Huuskonen M, Ruusunen M, Lindström M, Hänninen ML. Arcobacter species and their pulsed-field gel electrophoresis genotypes in Finnish raw milk during summer 2011. J Food Prot 2013; 76:1630-2. [PMID: 23992510 DOI: 10.4315/0362-028x.jfp-13-083] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The aim of this study was to investigate the occurrence of Arcobacter species in raw milk in Finland. A total of 177 raw milk samples, each from a separate farm, were examined from June to August 2011. Arcobacter species were isolated using an enrichment and selective detection procedure. Overall, 26 (15 % ) of the 177 samples yielded Arcobacter spp. Samples from 25 farms were positive for Arcobacter butzleri and from 1 farm for Arcobacter cryaerophilus. Moreover, both Arcobacter butzleri and A. cryaerophilus were recovered from 1 positive sample. To evaluate a possible genetic variability, one strain of A. butzleri from each farm and the A. cryaerophilus sample were analyzed by pulsed-field gel electrophoresis. Genotyping revealed that Arcobacter spp. populations are heterogeneous, and no dominant clone has spread in the investigated samples. Our study is the first report on the isolation of both A. butzleri and A. cryaerophilus in raw milk in Finland. Based on our findings, the presence of Arcobacter species in raw milk may pose a potential hazard for human health, in particular for consumers who prefer drinking unpasteurized milk.
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Affiliation(s)
- Joana Revez
- Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, P.O. Box 66, FI-00014, Helsinki, Finland.
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298
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Occurrence and genetic diversity of Arcobacter butzleri in an artisanal dairy plant in Italy. Appl Environ Microbiol 2013; 79:6665-9. [PMID: 23974135 DOI: 10.1128/aem.02404-13] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The present study aimed to investigate the presence, distribution, and persistence of Arcobacter spp. in an artisanal dairy plant and to test the isolates to determine their different genotypes in the processing plant and in foods. Samples were collected in an artisanal cheese factory on four occasions between October and December 2012. Food samples (raw milk, ricotta cheese, mozzarella cheese, and conditioning liquid), water samples, and environmental samples were analyzed by the culture method; isolates were identified by multiplex PCR and genotyped by pulsed-field gel electrophoresis (PFGE) analysis. Arcobacter butzleri was isolated from 29 out of 59 samples (46.6%), 22 of which were from environmental samples and 7 of which were from food samples. Cluster analysis divided the strains into 47 PFGE patterns: 14 PFGE clusters and 33 unique types. Our findings indicate that the plant harbored numerous A. butzleri pulsotypes and that the manual cleaning and sanitation in the studied dairy plant do not effectively remove Arcobacter. The recurrent isolation of A. butzleri suggests that the environmental conditions in the dairy plant constitute a good ecological niche for the colonization of this microorganism. In some cases, the presence of indistinguishable strains isolated from the same facilities on different sampling days showed that these strains were persistent in the processing environment.
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299
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Nieva-Echevarria B, Martinez-Malaxetxebarria I, Girbau C, Alonso R, Fernández-Astorga A. Prevalence and genetic diversity of arcobacter in food products in the north of Spain. J Food Prot 2013; 76:1447-50. [PMID: 23905804 DOI: 10.4315/0362-028x.jfp-13-014] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The bacterial contamination of food products can cause serious public health problems. Interest in Arcobacter contamination has increased due to the relationship between these bacteria and human enteritis. We studied the prevalence and genetic diversity of Arcobacter species at the retail level in the province of Alava in Basque Country, Spain. The results showed a high genetic diversity and indicated the regular presence of the main Arcobacter spp. associated with human enteric illness in food products. Arcobacter butzleri, Arcobacter cryaerophilus, and Arcobacter skirrowii were detected with an overall prevalence close to 40% and were isolated from 15 (42.8%) fresh cow's milk samples, 12 (73.3%) shellfish samples, 11 (55%) chicken samples, 2 (10%) pork samples, and 1 (5%) beef sample. The results indicate the need to investigate the impact of Arcobacter spp. on public health.
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Affiliation(s)
- Barbara Nieva-Echevarria
- Department of Immunology, Microbiology and Parasitology, Faculty of Pharmacy, University of the Basque Country-UPV/EHU, C/ Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain
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300
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Serraino A, Giacometti F, Daminelli P, Losio MN, Finazzi G, Marchetti G, Zambrini AV, Rosmini R. Survival of Arcobacter butzleri during production and storage of artisan water buffalo mozzarella cheese. Foodborne Pathog Dis 2013; 10:820-4. [PMID: 23806147 DOI: 10.1089/fpd.2013.1485] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Water buffalo mozzarella cheese (WBMC) is a fresh stretched cheese produced from whole chilled buffalo milk. Although pasteurization of milk and the use of defined starter cultures are recommended, traditional technology involving unpasteurized milk and natural whey cultures is still employed for WBMC production in Italy. The purpose of this study was to assess the behavior of Arcobacter butzleri during WBMC production and storage under different temperature conditions (5, 10, and 20 °C). Raw milk was experimentally inoculated with one reference strain and two isolates of A. butzleri, and the count was monitored during WBMC production and storage. The bacterial count of A. butzleri decreased during curd ripening (from 7.83 log colony-forming units (CFU)/g to 4.14 log CFU/g in about 4 h) and a further decrease (>4 log CFU/g) was observed at the end of curd stretching. During storage testing, A. butzleri was never detected by direct plating, whereas it was recovered from 12 of the total 162 WBMC until the end of storage testing by enrichment. The results revealed that A. butzleri is able to survive during WBMC production and storage at different temperature conditions. Consequently, traditional WBMC produced from raw milk could represent a potential source of Arcobacter infection for humans.
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Affiliation(s)
- Andrea Serraino
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy.
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