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Wünnemann H, Eskens U, Prenger-Berninghoff E, Ewers C, Lierz M. Lactococcus lactis, causative agent of an endocarditis valvularis and parietalis thromboticans in the allis shad, Alosa alosa (L.). JOURNAL OF FISH DISEASES 2018; 41:1207-1215. [PMID: 29806192 DOI: 10.1111/jfd.12813] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 03/13/2018] [Accepted: 03/14/2018] [Indexed: 06/08/2023]
Abstract
Since the 1940s, the anadromous allis shad, Alosa alosa (L.), has suffered population declines throughout its distribution range in Europe. In context of EU-LIFE projects for the reintroduction of the allis shad in the Rhine system, a comprehensive study was started in 2012 to investigate infectious diseases occurring in allis shad. In course of the study, 217 mature and young-of-the-year allis shad originating from the wild population from the Gironde-Garonne-Dordogne system (GGD-system) and the Rhine system as well as 38 allis shad from the breeding population were examined by use of bacteriological and histological methods. In 2012 and 2014, an endocarditis valvularis thromboticans caused by a coccoid bacterium was detected in 16% and 25% of mature allis shad originating from the GGD-system. Results of microbiologic examinations, including biochemical characteristics, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and 16S rRNA gene sequence analysis, revealed Lactococcus lactis as causative agent of this infection. This is the first report of an endocarditis valvularis and parietalis thromboticans caused by Lactococcus lactis in fish. Possible sources of infection as well as the impact for the reintroduction programme are discussed.
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Affiliation(s)
- H Wünnemann
- Clinic for Birds, Reptiles, Amphibians and Fish, Justus Liebig University, Giessen, Germany
| | - U Eskens
- The Hessen State Laboratory, Giessen, Germany
| | - E Prenger-Berninghoff
- Institute of Hygiene and Infectious Diseases of Animals, Justus Liebig University, Giessen, Germany
| | - C Ewers
- Institute of Hygiene and Infectious Diseases of Animals, Justus Liebig University, Giessen, Germany
| | - M Lierz
- Clinic for Birds, Reptiles, Amphibians and Fish, Justus Liebig University, Giessen, Germany
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Selection of enhanced antimicrobial activity posing lactic acid bacteria characterised by (GTG)5-PCR fingerprinting. Journal of Food Science and Technology 2015; 52:4124-34. [PMID: 26139877 DOI: 10.1007/s13197-014-1512-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 08/01/2014] [Accepted: 08/05/2014] [Indexed: 10/24/2022]
Abstract
The aim of the study was a detail evaluation of genetic diversity among the lactic acid bacteria (LAB) strains having an advantage of a starter culture in order to select genotypically diverse strains with enhanced antimicrobial effect on some harmfull and pathogenic microorganisms. Antimicrobial activity of LAB was performed by the agar well diffusion method and was examined against the reference strains and foodborne isolates of Bacillus cereus, Listeria monocytogenes, Escherichia coli, Staphylococcus aureus and Salmonella Typhimurium. Antifungal activity was tested against the foodborne isolates of Candida parapsilosis, Debaromyces hansenii, Kluyveromyces marxianus, Pichia guilliermondii, Yarowia lipolytica, Aspergillus brasiliensis, Aspergillus versicolor, Cladosporium herbarum, Penicillium chrysogenum and Scopulariopsis brevicaulis. A total 40 LAB strains representing Lactobacillus (23 strains), Lactococcus (13 strains) and Streptococcus spp. (4 strains) were characterised by repetitive sequence based polymerase chain reaction fingerprinting which generated highly discriminatory profiles, confirmed the identity and revealed high genotypic heterogeneity among the strains. Many of tested LAB demonstrated strong antimicrobial activity specialised against one or few indicator strains. Twelve LAB strains were superior in suppressing growth of the whole complex of pathogenic bacteria and fungi. These results demonstrated that separate taxonomic units offered different possibilities of selection for novel LAB strains could be used as starter cultures enhancing food preservation.
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Werner B, Moroni P, Gioia G, Lavín-Alconero L, Yousaf A, Charter M, Carter B, Bennett J, Nydam D, Welcome F, Schukken Y. Short communication: Genotypic and phenotypic identification of environmental streptococci and association of Lactococcus lactis ssp. lactis with intramammary infections among different dairy farms. J Dairy Sci 2014; 97:6964-9. [DOI: 10.3168/jds.2014-8314] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Accepted: 08/12/2014] [Indexed: 11/19/2022]
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Chen MH, Hung SW, Shyu CL, Lin CC, Liu PC, Chang CH, Shia WY, Cheng CF, Lin SL, Tu CY, Lin YH, Wang WS. Lactococcus lactis subsp. lactis infection in Bester sturgeon, a cultured hybrid of Huso huso×Acipenser ruthenus, in Taiwan. Res Vet Sci 2012; 93:581-8. [DOI: 10.1016/j.rvsc.2011.10.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2011] [Revised: 09/29/2011] [Accepted: 10/03/2011] [Indexed: 11/28/2022]
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Pérez T, Balcázar JL, Peix A, Valverde A, Velázquez E, de Blas I, Ruiz-Zarzuela I. Lactococcus lactis subsp. tructae subsp. nov. isolated from the intestinal mucus of brown trout (Salmo trutta) and rainbow trout (Oncorhynchus mykiss). Int J Syst Evol Microbiol 2011; 61:1894-1898. [DOI: 10.1099/ijs.0.023945-0] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The species Lactococcus lactis currently includes three subspecies; L. lactis subsp. lactis and L. lactis subsp. cremoris, isolated from milk sources, and L. lactis subsp. hordniae, isolated from the leafhopper Hordnia circellata. In this study, three strains, designated L105T, I3 and L101, were isolated from the intestinal mucus of brown trout (Salmo trutta) and rainbow trout (Oncorhynchus mykiss). These strains were closely related to members of the species Lactococcus lactis. Strain L105T showed 99.4 % 16S rRNA gene sequence similarity to that of the type strains L. lactis subsp. lactis NCDO 604T and L. lactis subsp. hordniae NCDO 2181T and showed 99.9 % similarity to the type strain Lactococcus lactis subsp. cremoris NCDO 607T. Analysis of two housekeeping genes, rpoB and recA, confirmed the close relationship between the novel strains and L. lactis subsp. cremoris with similarities of 99.3 and 99.7 %, respectively. The three strains could, however, be differentiated from their closest relatives on the basis of several phenotypic characteristics, as was the case for L. lactis subsp. lactis and L. lactis subsp. hordniae, which were also closely related on the basis of 16S rRNA, rpoB and recA gene sequence similarities. The strains isolated in this study represent a new subspecies, for which the name Lactococcus lactis subsp. tructae subsp. nov. is proposed. The type strain is L105T ( = LMG 24662T = DSM 21502T).
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Affiliation(s)
- Tania Pérez
- Laboratory of Fish Pathology, Faculty of Veterinary Sciences, Universidad de Zaragoza, 50013 Zaragoza, Spain
| | - José Luis Balcázar
- Catalan Institute for Water Research (ICRA), Scientific and Technological Park of the University of Girona, 17003 Girona, Spain
| | - Alvaro Peix
- Instituto de Recursos Naturales y Agrobiología de Salamanca – Consejo Superior de Investigaciones Científicas (IRNASA-CSIC), Salamanca, Spain
| | - Angel Valverde
- Instituto de Recursos Naturales y Agrobiología de Salamanca – Consejo Superior de Investigaciones Científicas (IRNASA-CSIC), Salamanca, Spain
| | - Encarna Velázquez
- Departamento de Microbiología y Genética, Universidad de Salamanca, Salamanca, Spain
| | - Ignacio de Blas
- Laboratory of Fish Pathology, Faculty of Veterinary Sciences, Universidad de Zaragoza, 50013 Zaragoza, Spain
| | - Imanol Ruiz-Zarzuela
- Laboratory of Fish Pathology, Faculty of Veterinary Sciences, Universidad de Zaragoza, 50013 Zaragoza, Spain
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Gomila M, Tvrzová L, Teshim A, Sedláček I, González-Escalona N, Zdráhal Z, Šedo O, González JF, Bennasar A, Moore ERB, Lalucat J, Murialdo SE. Achromobacter marplatensis sp. nov., isolated from a pentachlorophenol-contaminated soil. Int J Syst Evol Microbiol 2010; 61:2231-2237. [PMID: 20952547 DOI: 10.1099/ijs.0.025304-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A polyphasic taxonomic approach was applied to the study of a Gram-negative bacterium (B2(T)) isolated from soil by selective enrichment with pentachlorophenol. 16S rRNA gene sequence analysis of strain B2(T) showed that the strain belongs to the genus Achromobacter within the Betaproteobacteria. The 16S rRNA gene sequence displayed more than 99 % similarity to the sequences of the type strains of all species of Achromobacter, with the highest sequence similarity to those of Achromobacter spanius CCM 7183(T) and A. piechaudii CCM 2986(T) (99.8 %). On the basis of phylogenetic analysis, genomic DNA-DNA relatedness and phenotypic characteristics, including chemotaxonomic (cellular fatty acid profile) analysis, a novel species is proposed, Achromobacter marplatensis sp. nov., with the type strain B2(T) ( = CCM 7608(T) = CCUG 56371(T) = CECT 7342(T)).
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Affiliation(s)
- Margarita Gomila
- Microbiologia, Departament de Biologia, Universitat de les Illes Balears, and Institut Mediterrani d'Estudis Avançats (CSIC-UIB), 07122 Palma de Mallorca, Illes Balears, Spain
| | - Ludmila Tvrzová
- Division of Microbiology, Department of Experimental Biology, Faculty of Science, Masaryk University, Tvrdého 14, 60200 Brno, Czech Republic
| | - Andrea Teshim
- Division of Microbiology, Department of Experimental Biology, Faculty of Science, Masaryk University, Tvrdého 14, 60200 Brno, Czech Republic
| | - Ivo Sedláček
- Czech Collection of Microorganisms, Department of Experimental Biology, Faculty of Science, Masaryk University, Tvrdého 14, 60200 Brno, Czech Republic
| | - Narjol González-Escalona
- Center for Food Safety and Applied Nutrition, Food and Drug Administration, College Park, MD, USA
| | - Zbyněk Zdráhal
- Division of Functional Genomics and Proteomics, Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic
| | - Ondrej Šedo
- Division of Functional Genomics and Proteomics, Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic
| | | | - Antonio Bennasar
- Institut Universitari d'Investigació en Ciències de la Salut (IUNICS-UIB), Campus UIB, 07122 Palma de Mallorca, Spain.,Microbiologia, Departament de Biologia, Universitat de les Illes Balears, and Institut Mediterrani d'Estudis Avançats (CSIC-UIB), 07122 Palma de Mallorca, Illes Balears, Spain
| | - Edward R B Moore
- Sahlgrenska Academy of the University of Gothenburg, Gothenburg, Sweden.,Culture Collection University of Gothenburg (CCUG), Department of Clinical Bacteriology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Jorge Lalucat
- Microbiologia, Departament de Biologia, Universitat de les Illes Balears, and Institut Mediterrani d'Estudis Avançats (CSIC-UIB), 07122 Palma de Mallorca, Illes Balears, Spain
| | - Silvia E Murialdo
- Universidad Nacional de Mar del Plata, 7600 Mar del Plata, Buenos Aires, Argentina
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MILLS SUSAN, O’SULLIVAN ORLA, HILL COLIN, FITZGERALD GERALD, ROSS RPAUL. The changing face of dairy starter culture research: From genomics to economics. INT J DAIRY TECHNOL 2010. [DOI: 10.1111/j.1471-0307.2010.00563.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Svec P, Kukletová M, Sedlácek I. Comparative evaluation of automated ribotyping and RAPD-PCR for typing of Lactobacillus spp. occurring in dental caries. Antonie van Leeuwenhoek 2010; 98:85-92. [PMID: 20361257 DOI: 10.1007/s10482-010-9432-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2009] [Accepted: 03/22/2010] [Indexed: 11/28/2022]
Abstract
A group of 67 Lactobacillus spp. strains containing Lactobacillus casei/paracasei, Lactobacillus fermentum, Lactobacillus gasseri, Lactobacillus plantarum, Lactobacillus rhamnosus and Lactobacillus salivarius species isolated from early childhood caries and identified to the species level in a previous study (Svec et al., Folia Microbiol 54:53-58, 2009) was characterized by automated ribotyping performed by the RiboPrinter microbial characterization system and by randomly amplified polymorphic DNA fingerprinting (RAPD-PCR) with M13 primer to evaluate these techniques for characterization of lactobacilli associated with dental caries. Ribotyping revealed 55 riboprints among the analysed group. The automatic identification process performed by the RiboPrinter system identified 18 strains to the species level, however cluster analysis divided obtained ribotype patterns into individual clusters mostly corresponding to the species assignment of particular strains. RAPD-PCR fingerprints revealed by the individual Lactobacillus spp. showed higher variability than the ribotype patterns and the fingerprint profiles generated by the analysed species were distributed among one to four clusters. In conclusion, ribotyping is shown to be more convenient for the identification purposes while RAPD-PCR fingerprinting results indicate this method is a better tool for typing of Lactobacillus spp. strains occurring in dental caries.
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Affiliation(s)
- Pavel Svec
- Czech Collection of Microorganisms, Department of Experimental Biology, Faculty of Science, Masaryk University, Tvrdého 14, 602 00 Brno, Czech Republic.
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Expression of fungal cellulase gene in Lactococcus lactis to construct novel recombinant silage inoculants. Folia Microbiol (Praha) 2009; 54:335-42. [DOI: 10.1007/s12223-009-0043-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2008] [Revised: 03/23/2009] [Indexed: 10/20/2022]
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Svec P, Sedlácek I, Zácková L, Nováková D, Kukletová M. Lactobacillus spp. associated with early childhood caries. Folia Microbiol (Praha) 2009; 54:53-8. [PMID: 19330545 DOI: 10.1007/s12223-009-0008-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2008] [Revised: 10/16/2008] [Indexed: 11/27/2022]
Abstract
A group of 69 lactobacilli was isolated from caries lesions and root canals of early childhood caries (ECC) affected children treated in the Department of Pedodontics (Children's Teaching Hospital, Brno, Czech Republic). Biochemical and physiological properties of all strains were characterized by API 50 CH kit and conventional tube tests. The rep-PCR fingerprinting with the (GTG)(5) primer was used for genotypic grouping of the isolates. The (GTG)(5)-PCR fingerprinting grouped all analyzed strains into a few clusters in nearly full agreement with phenotype identification results and clarified the taxonomic position of 13 biochemically unidentified strains. In total, 20 strains of Lactobacillus fermentum, 17 L. rhamnosus, 14 L. casei/paracasei, 7 L. gasseri, 7 L. salivarius and 4 L. plantarum were identified. Mixtures of two or even three Lactobacillus spp. were isolated from a few root canal content samples. Results obtained by biotyping and (GTG)(5)-PCR were generally comparable except for L. gasseri strains that were not biochemically identified. The (GTG)(5)-PCR fingerprinting was shown to be quicker, easier to perform and more reliable than biotyping. Our results imply this molecular method as a good tool for screening and identification of Lactobacillus spp. inhabiting dental plaque.
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Affiliation(s)
- P Svec
- Institute of Experimental Biology, Masaryk University, Brno, Czech Republic.
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Nováková D, Švec P, Sedláček I. Characterization ofAeromonas encheleiastrains isolated from aquatic environments in the Czech Republic. Lett Appl Microbiol 2009; 48:289-94. [DOI: 10.1111/j.1472-765x.2008.02528.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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