Cindy Snauwaert - Academia.edu (original) (raw)

Papers by Cindy Snauwaert

Fems Immunology and Medical Microbiology, Mar 1, 2007

Fifteen lactic acid bacterial strains were isolated from blood cultures from 15 different patient... more Fifteen lactic acid bacterial strains were isolated from blood cultures from 15 different patients in the Faculty Hospital in Brno, Czech Republic. All strains were identified using biochemical tests and repetitive PCR using the (GTG) 5 primer. Doubtful identification results were confirmed by whole-cell protein analysis. The strains were assigned to the genera Lactobacillus (eight strains representing seven species), Leuconostoc (six strains representing four species) and Weissella (one strain). Antibiotic susceptibility testing was performed using the E-test and revealed high-level resistance to cotrimoxazol, metronidazole, vancomycin and teicoplanin, but nearly all strains were susceptible to erythromycin, clindamycin, ampicillin and penicillin.

International Journal of Systematic and Evolutionary Microbiology, May 1, 2005

International Journal of Systematic and Evolutionary Microbiology, 2001

A group of previously well-identified enterococci isolated from a typical Slovakian sheep-milk pr... more A group of previously well-identified enterococci isolated from a typical Slovakian sheep-milk product bryndza were characterized by the (GTG)5-PCR fingerprinting in order to evaluate discriminatory power of this method for identification and strain-typing. Analysed group consisted of E. faecium (n = 76), E. faecalis (n = 25) and E. durans (n = 10) strains. They were sampled from two bryndza-processing manufactories during three monthly samplings performed successively (April, May and June) in 2000 and 2001. Isolated strains were characterized and identified by biotyping, ITS-PCR, ddlE.faecalis and ddlE.faecium PCRs. Species identity of representative strains selected from each (GTG)5-PCR fingerprint subcluster was confirmed by SDS-PAGE of whole-cell proteins. The (GTG)5-PCR fingerprint profiles obtained from E. faecalis strains were visually very close. Similarly, E. durans strains revealed nearly identical fingerprints. E. faecium strains were separated into two clearly separated clusters (30 % similarity), but both these groups were confirmed as E. faecium by all methods mentioned above. No clear correlation between locality, sampling period and obtained fingerprint profiles was revealed. Our results imply that (GTG)5-PCR fingerprinting is useful for their identification at the species level, but not a suitable tool for epidemiological studies nor for typing of enterococcal strains. This work was supported by the Belgian Federal Science Policy Office by a research fellowship for P. S. obtained in the framework of the promotion of S&T cooperation with Central and Eastern Europe.

International Journal of Systematic and Evolutionary Microbiology, Apr 1, 2006

The relatedness of the species Lactobacillus ingluviei and Lactobacillus thermotolerans was inves... more The relatedness of the species Lactobacillus ingluviei and Lactobacillus thermotolerans was investigated by comparing partial sequences of the 16S rRNA gene (99?9 % similarity over 1504 bp), the hsp60 gene (98?8 % similarity over 954 bp) and the recA gene (98?5 % similarity over 452 bp) and by determining DNA-DNA binding levels (79±3 %) and genomic DNA G+C contents (50 and 49 mol%, respectively). These data, in addition to their similar biochemical characteristics, suggest that the two taxa constitute a single species. According to Rules 38 and 42 of the Bacteriological Code, they should be united under the name Lactobacillus ingluviei, with the name Lactobacillus thermotolerans as a later heterotypic synonym.

International Journal of Systematic and Evolutionary Microbiology, 2020

An actinomycete, strain D1T, was isolated from a freshwater sediment sample collected from the Sa... more An actinomycete, strain D1T, was isolated from a freshwater sediment sample collected from the San Pablo river in the La Risueña community, Santiago de Cuba province, Cuba. The strain was identified as a member of the genus Nocardiopsis by means of a polyphasic taxonomic study. It produced a light yellow non-fragmented substrate mycelium, a white well-developed aerial mycelium and straight to flexuous hyphae. No specific spore chains were observed. Strain D1T contained meso-diaminopimelic acid, no diagnostic sugars, and MK-10(H2), MK-10(H4), MK-10 and MK-10(H6) as predominant menaquinones, but not phosphatidylcholine as diagnostic polar lipid of the genus Nocardiopsis . The predominant fatty acids were iso-C16 : 0, 10-methyl-C18 : 0 and anteiso-C17 : 0. Strain D1T showed the highest degree of 16S rRNA gene sequence similarity to Nocardiopsis synnematoformans DSM 44143T (99.8 %), Nocardiopsis dassonvillei subsp. albirubida NBRC 13392T (99.8 %) and Nocardiopsis dassonvillei subsp. das...

International Journal of Systematic and Evolutionary Microbiology, 2017

Strain EPL6(T), a Gram-negative, motile, short rod was isolated from a propanil and 3,4-dichloroa... more Strain EPL6(T), a Gram-negative, motile, short rod was isolated from a propanil and 3,4-dichloroaniline enrichment culture produced from rice paddy soil. Based on the analyses of the 16S rRNA gene sequence, strain EPL6(T) was observed to be a member of the family Comamonadaceae, sharing the highest pairwise identity with type strains of the species Alicycliphilus denitrificans K601(T) (96.8 %) and Melaminivora alkalimesophila CY1(T) (96.8 %). Strain EPL6(T) was able to grow in a temperature range of 15-37 °C, pH 6-9 and in the presence of up to 4 % (w/v) NaCl and tested positive for catalase and oxidase reactions. The major respiratory quinone was Q8. The genomic DNA had a G+C content of 69.4±0.9 mol%. The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol, and the major fatty acid methyl esters comprised C16 : 0, C18 : 1ω7c and summed feature 3 (C16 : 1ω7c/iso-C15 : 0 2-OH). Comparison of the genome sequence of strain EPL6(T) and of its closest neighbours, Melaminivora alkalimesophila CY1(T) and Alicycliphilus denitrificans K601(T), yielded values of ANI ≤84.1 % and of AAI ≤80.3 %. Therefore, the genetic, phylogenetic, phenotypic and chemotaxonomic characteristics support the classification of this organism into a new taxon. Considering the genetic divergence of strain EPL6(T) from the type strains of the closest species, which belong to distinct genera, we propose a new genus within the family Comamonadaceae, named Oryzisolibacter propanilivorax gen. nov., sp. nov., represented by the isolate EPL6(T) as the type strain of the species (=LMG 28427(T)=CECT 8927(T)).

International Journal of Systematic and Evolutionary Microbiology

During a bioprospection of bacteria with antimicrobial activity, the actinomycete strain A38T was... more During a bioprospection of bacteria with antimicrobial activity, the actinomycete strain A38T was isolated from a sediment sample of the Carpintero river located in the Gran Piedra Mountains, Santiago de Cuba province (Cuba). This strain was identified as a member of the genus Micromonospora by means of a polyphasic taxonomy study. Strain A38T was an aerobic Gram-positive filamentous bacterium that produced single spores in a well-developed vegetative mycelium. An aerial mycelium was absent. The cell wall contained meso-diaminopimelic acid and the whole-cell sugars were glucose, mannose, ribose and xylose. The major cellular fatty acids were isoC15:0, 10 methyl C17:0, anteiso-C17:0 and iso-C17:0. The predominant menaquinones were MK-10(H4) and MK-10(H6). Phylogenetic analysis of 16S rRNA gene sequences revealed that this strain was closely related to Micromonospora tulbaghiae DSM 45142T (99.5 %), Micromonospora citrea DSM 43903T (99.4 %), Micromonospora marina DSM 45555T (99.4 %), M...

International Journal of Systematic and Evolutionary Microbiology, 2001

Seven Gram-negative strains, isolated in 1990 from a 10 6 -fold dilution series of seawater from ... more Seven Gram-negative strains, isolated in 1990 from a 10 6 -fold dilution series of seawater from Resurrection Bay, a deep fjord of the Gulf of Alaska, were identified in a polyphasic taxonomic study. Analysis of 16S rDNA sequences and DNA-homology studies confirmed the phylogenetic position of all strains in the genus Sphingomonas and further indicated that all of the strains constitute a single homogeneous genomic species, distinct from all validly described Sphingomonas species. The ability to differentiate the species, both phenotypically and chemotaxonomically, from its nearest neighbours justifies the proposal of a new species name, Sphingomonas alaskensis sp. nov., for this taxon. Strain LMG 18877 T (l RB2256 T l DSM 13593 T ) was selected as the type strain.

International Journal of Systematic and Evolutionary Microbiology, 2001

The taxonomic positions of five enteroadherent bacterial pig isolates, showing phenotypic charact... more The taxonomic positions of five enteroadherent bacterial pig isolates, showing phenotypic characteristics most similar to those of Enterococcus durans and Enterococcus hirae, were investigated in a polyphasic study that included 16S rDNA sequence analysis, DNA-DNA hybridizations, DNA base-ratio determinations, whole-cell protein fingerprinting, D11344-primed PCR typing and an extensive examination of phenotypic properties. The results demonstrated that the organisms represent a new species in the Enterococcus faecium species group, for which the name Enterococcus villorum sp. nov. is proposed. The type strain is LMG 12287 T (l CCM 4887 T ).

International journal of systematic and evolutionary microbiology, 2001

Seven Gram-negative strains, isolated in 1990 from a 10(6)-fold dilution series of seawater from ... more Seven Gram-negative strains, isolated in 1990 from a 10(6)-fold dilution series of seawater from Resurrection Bay, a deep fjord of the Gulf of Alaska, were identified in a polyphasic taxonomic study. Analysis of 16S rDNA sequences and DNA-homology studies confirmed the phylogenetic position of all strains in the genus Sphingomonas and further indicated that all of the strains constitute a single homogeneous genomic species, distinct from all validly described Sphingomonas species. The ability to differentiate the species, both phenotypically and chemotaxonomically, from its nearest neighbours justifies the proposal of a new species name, Sphingomonas alaskensis sp. nov., for this taxon. Strain LMG 18877T (= RB2256T = DSM 13593T) was selected as the type strain.

The Journal of General and Applied Microbiology, 2006

Three hundred and eight presumed enterococcal isolates were recovered from Bryndza, a soft sheep ... more Three hundred and eight presumed enterococcal isolates were recovered from Bryndza, a soft sheep milk cheese. The cheese samples were obtained from five different commercial distributors in Slovakia and were taken at three different seasonal intervals. All isolates were identified to the species level using genotypic tools. Species-specific PCR using ddl genes highlighted the predominance of Enterococcus faecium (176 isolates) and assigned 50 isolates to the species Enterococcus faecalis. The remaining 82 isolates were classified using repetitive element sequence-based polymerase chain reaction (PCR) with primer (GTG)(5)-(GTG)(5)-PCR, in combination with phenylalanyl-tRNA synthase gene (pheS) sequence analysis and by whole-cell protein analysis (SDS-PAGE). These strains were identified as Enterococcus durans (59 strains), Enterococcus italicus (8 strains), Enterococcus casseliflavus (3 strains), Enterococcus gallinarum (3 strains), Enterococcus hirae (1 strain), and 8 strains were members of the species Lactococcus lactis. Of the seven enterococcal species isolated, three of them, E. durans, E. faecalis and E. faecium were present in all samples studied, with E. faecium as the predominant one. The precise identification of enterococci in Bryndza cheese is an essential step in the process of evaluation of their functional properties which will be further studied and assessed.

INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 2006

INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 2002

Abraham et al. 1999 and proposal of Maricaulis virginensis sp. nov., M. parjimensis sp. nov., M. ... more Abraham et al. 1999 and proposal of Maricaulis virginensis sp. nov., M. parjimensis sp. nov., M. washingtonensis sp. nov. and M. salignorans sp. nov. Thirteen marine bacteria isolated from different locations, belonging to the genus Maricaulis, were characterized by 16S rRNA gene sequencing, DNA-DNA hybridizations and analysis of the internally transcribed 16S-23S rDNA spacer (ITS1) region, analysis of fatty acids from total lipids, mass spectrometry of polar lipids and determination of temperature and NaCl tolerances. The data obtained led to the identification of five new sulfoquinovosyl diacylglycerols, using tandem mass spectrometry, and the fragmentation patterns of the individual compounds. Four novel species were identified and described as Maricaulis virginensis sp. nov. (type strain VKM B-1513 T ), Maricaulis parjimensis sp. nov. (type strain MCS 25 T ), Maricaulis washingtonensis sp. nov. (type strain MCS 6 T ) and Maricaulis salignorans sp. nov. (type strain MCS 18 T ). They differ in their temperature and salt tolerances and can be differentiated by their polar lipids and fatty acid patterns, as well as their ITS1 and 16S rRNA gene sequences.

INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 2004

Three marine, heterotrophic, aerobic, agarolytic, pigmented and gliding bacteria were isolated in... more Three marine, heterotrophic, aerobic, agarolytic, pigmented and gliding bacteria were isolated in June 2000 from a sea water sample that was collected in the Gulf of Peter the Great, Sea of Japan, and analysed in a polyphasic taxonomic study. 16S rDNA sequence analysis indicated that strains KMM 3664 T , KMM 3669 and KMM 3915 were members of the family Flavobacteriaceae. Based on phenotypic, chemotaxonomic, genotypic and phylogenetic data, the isolates were classified in the genus Cellulophaga as members of a novel species, Cellulophaga pacifica sp. nov. The type strain is KMM 3664 T (=JCM 11735 T =LMG 21938 T ).

International Journal of Systematic and Evolutionary Microbiology, May 1, 2005

Strains of a Gram-positive bacterium were isolated from the Irish smear-ripened cheese Gubbeen, a... more Strains of a Gram-positive bacterium were isolated from the Irish smear-ripened cheese Gubbeen, and assigned to a new species, Corynebacterium mooreparkense, in 2001. During a further study on the same cheese, no additional isolates from this species could be found. Instead, multiple isolates of its nearest phylogenetic neighbour, Corynebacterium variabile, were found. A first screening with rep-PCR and SDS-PAGE pointed to a similarity between C. mooreparkense and C. variabile. Following this peculiar result, attempts were made to collect all type strains deposited at different culture collections and all strains described by Brennan et al. [Int J Syst Evol Microbiol (2001) 51, 843-852]. Subsequently, 16S rRNA gene sequencing and DNA-DNA hybridizations were performed. All C. mooreparkense strains had a 16S rRNA gene sequence similarity of at least 99?5 % with C. variabile and the DNA-DNA relatedness was 95 %. On the basis of these results, it is concluded that C. mooreparkense is a later heterotypic synonym of C. variabile.

International Journal of Systematic and Evolutionary Microbiology, 2001

Communications in agricultural and applied biological sciences