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  • 1
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    Lactobacillus namurensis sp. nov., isolated from a traditional Belgian sourdough
    Microbiology Society ; 2007
    In:  International Journal of Systematic and Evolutionary Microbiology Vol. 57, No. 2 ( 2007-02-01), p. 223-227
    Details
    In: International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, Vol. 57, No. 2 ( 2007-02-01), p. 223-227
    Abstract: A biodiversity study on lactic acid bacteria (LAB) occurring in traditional Belgian sourdoughs resulted in the isolation of two Lactobacillus isolates, LMG 23583 T and LMG 23584, that could not be assigned to any recognized LAB species. The two isolates were initially investigated by means of phenylalanyl-tRNA synthase ( pheS ) gene sequence analysis and were found to occupy a separate position relative to recognized Lactobacillus species present in the pheS database. Subsequently, their phylogenetic affiliation was determined by 16S rRNA gene sequence analysis, indicating that the two isolates belong to the Lactobacillus buchneri species group with Lactobacillus zymae , Lactobacillus acidifarinae and Lactobacillus spicheri as closest relatives. Whole-cell protein analysis (SDS-PAGE) and amplified fragment length polymorphism fingerprinting of whole genomes confirmed their separate taxonomic status. DNA–DNA hybridization experiments, DNA G+C content, growth characteristics and biochemical features demonstrated that the two isolates represent a novel Lactobacillus species, for which the name Lactobacillus namurensis sp. nov. is proposed. The type strain is LMG 23583 T (=CCUG 52843 T ).
    Type of Medium: Online Resource
    ISSN: 1466-5026 , 1466-5034
    URL: Article
    DOI: 10.1099/ijs.0.64607-0
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2007
    detail.hit.zdb_id: 215062-1
    detail.hit.zdb_id: 2056611-6
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  • 2
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    Isolation and Characterization of Human Intestinal Bacteria Capable of Transforming the Dietary Carcinogen 2-Amino-1-Methyl-6-Phenylimidazo[4,5- b ]Pyridine
    American Society for Microbiology ; 2008
    In:  Applied and Environmental Microbiology Vol. 74, No. 5 ( 2008-03), p. 1469-1477
    Details
    In: Applied and Environmental Microbiology, American Society for Microbiology, Vol. 74, No. 5 ( 2008-03), p. 1469-1477
    Abstract: 2-Amino-1-methyl-6-phenylimidazo[4,5- b ]pyridine (PhIP) is a carcinogenic heterocyclic aromatic amine formed in meat products during cooking. Although the formation of hazardous PhIP metabolites by mammalian enzymes has been extensively reported, research on the putative involvement of the human intestinal microbiota in PhIP metabolism remains scarce. In this study, the in vitro conversion of PhIP into its microbial derivate, 7-hydroxy-5-methyl-3-phenyl-6,7,8,9-tetrahydropyrido[3′,2′:4,5] imidazo[1,2- a ]pyrimidin-5-ium chloride (PhIP-M1), by fecal samples from 18 human volunteers was investigated. High-performance liquid chromatography analysis showed that all human fecal samples transformed PhIP but with efficiencies ranging from 1.8 to 96% after 72 h of incubation. Two PhIP-transforming strains, PhIP-M1-a and PhIP-M1-b, were isolated from human feces and identified by fluorescent amplified fragment length polymorphism and pheS sequence analyses as Enterococcus faecium strains. Some strains from culture collections belonging to the species E. durans , E. avium , E. faecium , and Lactobacillus reuteri were also able to perform this transformation. Yeast extract, special peptone, and meat extract supported PhIP transformation by the enriched E. faecium strains, while tryptone, monomeric sugars, starch, and cellulose did not. Glycerol was identified as a fecal matrix constituent required for PhIP transformation. Abiotic synthesis of PhIP-M1 and quantification of the glycerol metabolite 3-hydroxypropionaldehyde (3-HPA) confirmed that the anaerobic fermentation of glycerol via 3-HPA is the critical bacterial transformation process responsible for the formation of PhIP-M1. Whether it is a detoxification is still a matter of debate, since PhIP-M1 has been shown to be cytotoxic toward Caco-2 cells but is not mutagenic in the Ames assay.
    Type of Medium: Online Resource
    ISSN: 0099-2240 , 1098-5336
    URL: Article
    DOI: 10.1128/AEM.02064-07
    RVK:
    WA 15000
    Language: English
    Publisher: American Society for Microbiology
    Publication Date: 2008
    detail.hit.zdb_id: 223011-2
    detail.hit.zdb_id: 1478346-0
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  • 3
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    Genomic Diversity and Homologous Recombination in Vibrio parahaemolyticus as Revealed by Amplified Fragment Length Polymorphism (AFLP) and Multilocus Sequence Analysis (MLSA)
    Japanese Society of Microbial Ecology ; 2007
    In:  Microbes and Environments Vol. 22, No. 4 ( 2007), p. 373-379
    Details
    In: Microbes and Environments, Japanese Society of Microbial Ecology, Vol. 22, No. 4 ( 2007), p. 373-379
    Type of Medium: Online Resource
    ISSN: 1342-6311 , 1347-4405
    URL: Article
    DOI: 10.1264/jsme2.22.373
    Language: English
    Publisher: Japanese Society of Microbial Ecology
    Publication Date: 2007
    detail.hit.zdb_id: 2039087-7
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  • 4
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    Description of Gluconacetobacter swingsii sp. nov. and Gluconacetobacter rhaeticus sp. nov., isolated from Italian apple fruit
    Microbiology Society ; 2005
    In:  International Journal of Systematic and Evolutionary Microbiology Vol. 55, No. 6 ( 2005-11-01), p. 2365-2370
    Details
    In: International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, Vol. 55, No. 6 ( 2005-11-01), p. 2365-2370
    Abstract: Two Gram-negative, rod-shaped, non-spore-forming bacteria (DST GL01 T and DST GL02 T ) were isolated from apple fruit juice in the region of the Italian Alps. On the basis of 16S rRNA gene sequence similarities, strains DST GL01 T and DST GL02 T were shown to belong to the α -subclass of the Proteobacteria , and, in particular, to the genus Gluconacetobacter , in the Gluconacetobacter xylinus branch (98·5–100 %). Chemotaxonomic data (major ubiquinone, Q10; predominant fatty acid, C 18 : 1 ω 7 c , accounting for approximately 50 % of the fatty acid content) support the affiliation of both strains to the genus Gluconacetobacter . The results of DNA–DNA hybridizations, together with physiological and biochemical data, allowed genotypic and phenotypic differentiation between strains DST GL01 T and DST GL02 T and from the 11 validly published Gluconacetobacter species. They therefore represent two new species, for which the names Gluconacetobacter swingsii sp. nov. and Gluconacetobacter rhaeticus sp. nov. are proposed, with the type strains DST GL01 T (=LMG 22125 T =DSM 16373 T ) and DST GL02 T (=LMG 22126 T =DSM 16663 T ), respectively.
    Type of Medium: Online Resource
    ISSN: 1466-5026 , 1466-5034
    URL: Article
    DOI: 10.1099/ijs.0.63301-0
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2005
    detail.hit.zdb_id: 215062-1
    detail.hit.zdb_id: 2056611-6
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  • 5
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    Rhodanobacter spathiphylli sp. nov., a gammaproteobacterium isolated from the roots of Spathiphyllum plants grown in a compost-amended potting mix
    Microbiology Society ; 2006
    In:  International Journal of Systematic and Evolutionary Microbiology Vol. 56, No. 8 ( 2006-08-01), p. 1755-1759
    Details
    In: International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, Vol. 56, No. 8 ( 2006-08-01), p. 1755-1759
    Abstract: Three Gram-negative, yellow-pigmented strains were isolated from the rhizospheres of Spathiphyllum plants grown in a compost-amended potting mix. The strains showed biological control activity towards the root-rot plant pathogen Cylindrocladium spathiphylli , and were characterized to determine their taxonomic position. Cells of the strains were non-motile rods, and the strains were oxidase- and catalase-positive and unable to ferment most sugars tested. The three strains showed differences in growth temperature range, optimal growth temperature and some biochemical reactions. The majority of the fatty acids were branched, and large amounts of 15 : 0 iso and 17 : 1 iso ω 9 c were present. The 16S rRNA gene sequence (1497 bp) of strain B39 T showed the highest level of similarity (98.5 %) to that of Rhodanobacter fulvus IAM 15025 T , followed by Rhodanobacter lindaniclasticus LMG 18385 T (96.0 %; strain no longer extant), Dyella koreensis CCUG 50883 T (96.4 %), Dyella japonica DSM 16301 T (96.3 %), Frateuria aurantia LMG 1558 T (96.2 %) and Fulvimonas soli LMG 19981 T (95.9 %). Less than 90 % 16S rRNA gene sequence similarity was observed for other members of the Gammaproteobacteria . The mean DNA–DNA reassociation value for the three strains was 100 % and was 25 % when the strains were compared with DNA from R. fulvus LMG 23003 T . The strains had a mean DNA G+C content of 67.6 mol%. On the basis of their phylogenetic, genomic and phenotypic properties, the three strains represent a novel species within the genus Rhodanobacter , for which the name Rhodanobacter spathiphylli sp. nov. is proposed. The type strain is strain B39 T (=LMG 23181 T =DSM 17631 T ).
    Type of Medium: Online Resource
    ISSN: 1466-5026 , 1466-5034
    URL: Article
    DOI: 10.1099/ijs.0.64131-0
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2006
    detail.hit.zdb_id: 215062-1
    detail.hit.zdb_id: 2056611-6
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  • 6
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    Enterobacter turicensis sp. nov. and Enterobacter helveticus sp. nov., isolated from fruit powder
    Microbiology Society ; 2007
    In:  International Journal of Systematic and Evolutionary Microbiology Vol. 57, No. 4 ( 2007-04-01), p. 820-826
    Details
    In: International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, Vol. 57, No. 4 ( 2007-04-01), p. 820-826
    Abstract: Four Gram-negative, facultatively anaerobic, non-spore-forming isolates of coccoid rods were obtained from fruit powder and investigated in a polyphasic taxonomic study. Comparative 16S rRNA gene sequence analysis allocated the isolates to the family Enterobacteriaceae . Their phylogenetic position within the family Enterobacteriaceae was confirmed by rpoB sequence analysis and as the highest rpoB sequence similarities were obtained with Enterobacter radicincitans , Enterobacter cowanii and Enterobacter sakazakii , the isolates clearly belong to the genus Enterobacter . Biochemical data revealed that the isolates can be separated into two distinct groups that represent two novel species, as confirmed by DNA–DNA hybridizations. The two novel species can be differentiated from their nearest neighbours by the following characteristics: the utilization of sucrose, d -sorbitol, putrescine and mucate, the hydrolysis of aesculin and a negative result in the Voges–Proskauer reaction. It is therefore proposed that these novel isolates are classified as Enterobacter turicensis sp. nov. (type strain 508/05 T =LMG 23730 T =DSM 18397 T ) and Enterobacter helveticus sp. nov. (type strain 513/05 T =LMG 23732 T =DSM 18396 T ).
    Type of Medium: Online Resource
    ISSN: 1466-5026 , 1466-5034
    URL: Article
    DOI: 10.1099/ijs.0.64650-0
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2007
    detail.hit.zdb_id: 215062-1
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  • 7
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    Acetobacter senegalensis sp. nov., a thermotolerant acetic acid bacterium isolated in Senegal (sub-Saharan Africa) from mango fruit (Mangifera indica L.)
    Microbiology Society ; 2007
    In:  International Journal of Systematic and Evolutionary Microbiology Vol. 57, No. 7 ( 2007-07-01), p. 1576-1581
    Details
    In: International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, Vol. 57, No. 7 ( 2007-07-01), p. 1576-1581
    Abstract: A thermotolerant acetic acid bacterium, designated strain CWBI-B418 T , isolated in Senegal from mango fruit ( Mangifera indica ), was characterized in detail by means of genotypic and phenotypic methods. The novel strain was strictly aerobic and exhibited optimal growth on YGM medium at 35 °C. Cells were Gram-negative, motile and coccoid. The strain was assigned to the genus Acetobacter on the basis of 16S rRNA gene sequence analysis. DNA–DNA hybridization experiments with its phylogenetically closest relatives showed that strain CWBI-B418 T represented a novel Acetobacter genospecies. The DNA G+C content of strain CWBI-B418 T was 56.0 mol%. Phenotypic characteristics enabling the differentiation of strain CWBI-B418 T from phylogenetically related Acetobacter species were: production of 2-keto- d -gluconic acid from d -glucose, but not 5-keto- d -gluconic acid, production of catalase but not oxidase, growth on yeast extract with 30 % d -glucose, growth with ammonium as sole nitrogen source with ethanol as carbon source, utilization of glycerol and ethanol but not maltose or methanol as carbon sources, and growth in the presence of 10 % ethanol. Based on the genotypic and phenotypic data presented, strain CWBI-B418 T clearly represents a novel Acetobacter species, for which the name Acetobacter senegalensis sp. nov. is proposed. The type strain is CWBI-B418 T (=LMG 23690 T =DSM 18889 T ).
    Type of Medium: Online Resource
    ISSN: 1466-5026 , 1466-5034
    URL: Article
    DOI: 10.1099/ijs.0.64678-0
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2007
    detail.hit.zdb_id: 215062-1
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  • 8
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    Mesorhizobium shonense sp. nov., Mesorhizobium hawassense sp. nov. and Mesorhizobium abyssinicae sp. nov., isolated from root nodules of different agroforestry legume trees
    Microbiology Society ; 2013
    In:  International Journal of Systematic and Evolutionary Microbiology Vol. 63, No. Pt_5 ( 2013-05-01), p. 1746-1753
    Details
    In: International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, Vol. 63, No. Pt_5 ( 2013-05-01), p. 1746-1753
    Abstract: A total of 18 strains, representing members of the genus Mesorhizobium , obtained from root nodules of woody legumes growing in Ethiopia, have been previously shown, by multilocus sequence analysis (MLSA) of five housekeeping genes, to form three novel genospecies. In the present study, the phylogenetic relationship between representative strains of these three genospecies and the type strains of their closest phylogenetic neighbours Mesorhizobium plurifarium , Mesorhizobium amorphae , Mesorhizobium septentrionale and Mesorhizobium huakuii was further evaluated using a polyphasic taxonomic approach. In line with our earlier MLSA of other housekeeping genes, the phylogenetic trees derived from the atpD and glnII genes grouped the test strains into three well-supported, distinct lineages that exclude all defined species of the genus Mesorhizobium . The DNA–DNA relatedness between the representative strains of genospecies I–III and the type strains of their closest phylogenetic neighbours was low (≤59 %). They differed from each other and from their closest phylogenetic neighbours by the presence/absence of several fatty acids, or by large differences in the relative amounts of particular fatty acids. While showing distinctive features, they were generally able to utilize a wide range of substrates as sole carbon and nitrogen sources. The strains belonging to genospecies I, II and III therefore represent novel species for which we propose the names Mesorhizobium shonense sp. nov., Mesorhizobium hawassense sp. nov. and Mesorhizobium abyssinicae sp. nov. The isolates AC39a T ( = LMG 26966 T  = HAMBI 3295 T ), AC99b T ( = LMG 26968 T  = HAMBI 3301 T ) and AC98c T ( = LMG 26967 T  = HAMBI 3306 T ) are proposed as type strains for the respective novel species.
    Type of Medium: Online Resource
    ISSN: 1466-5026 , 1466-5034
    URL: Article
    DOI: 10.1099/ijs.0.044032-0
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2013
    detail.hit.zdb_id: 215062-1
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  • 9
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    Acetobacter lambici sp. nov., isolated from fermenting lambic beer
    Microbiology Society ; 2014
    In:  International Journal of Systematic and Evolutionary Microbiology Vol. 64, No. Pt_4 ( 2014-04-01), p. 1083-1089
    Details
    In: International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, Vol. 64, No. Pt_4 ( 2014-04-01), p. 1083-1089
    Abstract: An acetic acid bacterium, strain LMG 27439 T , was isolated from fermenting lambic beer. The cells were Gram-stain-negative, motile rods, catalase-positive and oxidase-negative. Analysis of the 16S rRNA gene sequence revealed the strain was closely related to Acetobacter okinawensis (99.7 % 16S rRNA gene sequence similarity with the type strain of this species), A. ghanensis (99.6 %), A. syzygii (99.6 %), A. fabarum (99.4 %) and A. lovaniensis (99.2 %). DNA–DNA hybridization with the type strains of these species revealed moderate DNA–DNA hybridization values (31–45 %). Strain LMG 27439 T was unable to grow on glycerol or methanol as the sole carbon source, on yeast extract with 10 % ethanol or on glucose-yeast extract medium at 37 °C. It did not produce acid from l -arabinose, d -galactose or d -mannose, nor did it produce 2-keto- d -gluconic acid, 5-keto- d -gluconic acid or 2,5-diketo- d -gluconic acid from d -glucose. It did not grow on ammonium as the sole nitrogen source and ethanol as the sole carbon source. These genotypic and phenotypic data distinguished strain LMG 27439 T from established species of the genus Acetobacter , and therefore we propose this strain represents a novel species of the genus Acetobacter . The name Acetobacter lambici sp. nov. is proposed, with LMG 27439 T ( = DSM 27328 T ) as the type strain.
    Type of Medium: Online Resource
    ISSN: 1466-5026 , 1466-5034
    URL: Article
    DOI: 10.1099/ijs.0.057315-0
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2014
    detail.hit.zdb_id: 215062-1
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  • 10
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    Acinetobacter parvus sp. nov., a small-colony-forming species isolated from human clinical specimens
    Microbiology Society ; 2003
    In:  International Journal of Systematic and Evolutionary Microbiology Vol. 53, No. 5 ( 2003-09-01), p. 1563-1567
    Details
    In: International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, Vol. 53, No. 5 ( 2003-09-01), p. 1563-1567
    Type of Medium: Online Resource
    ISSN: 1466-5026 , 1466-5034
    URL: Article
    DOI: 10.1099/ijs.0.02631-0
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2003
    detail.hit.zdb_id: 215062-1
    detail.hit.zdb_id: 2056611-6
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