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Matthew D. Collins - One of the best experts on this subject based on the ideXlab platform.
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Actinomyces vaccimaxillae sp. nov., from the jaw of a cow.
International Journal of Systematic and Evolutionary Microbiology, 2003Co-Authors: Val Hall, Enevold Falsen, Matthew D. Collins, Roger A Hutson, Elisabeth Inganäs, Brian I DuerdenAbstract:A previously undescribed Actinomyces-like bacterium was isolated from a lesion in the jaw of a cow. Based on its cellular morphology and the results of biochemical testing, the organism was tentatively identified as a member of the genus Actinomyces. Comparative 16S rRNA gene sequencing studies showed that the bacterium represents a hitherto unknown species within the genus Actinomyces, and is related to a group of species that includes Actinomyces turicensis and its close relatives. It is proposed that the unknown organism be classified as Actinomyces vaccimaxillae sp. nov. (the type strain is CCUG 46091T=CIP 107423T).
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Actinomyces oricola sp. nov., from a human dental abscess.
International journal of systematic and evolutionary microbiology, 2003Co-Authors: Val Hall, Enevold Falsen, Matthew D. Collins, Roger A Hutson, Elisabeth Inganäs, Brian I DuerdenAbstract:A previously undescribed Actinomyces-like bacterium was isolated from a human dental abscess. Based on its cellular morphology and the results of biochemical testing the organism was tentatively identified as a member of the genus Actinomyces, but it did not correspond to any currently recognized species of this genus. Comparative 16S rRNA gene sequencing studies showed the bacterium represents a hitherto unknown subline within the genus Actinomyces, clustering within a group of species, which includes Actinomyces bovis, the type species of the genus. Based on biochemical and molecular phylogenetic evidence, it is proposed that the unknown organism recovered from a dental abscess be classified as a new species, Actinomyces oricola sp. nov. The type strain of Actinomyces oricola is R5292(T) (=CCUG 46090(T)=CIP 107639(T)).
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Actinomyces coleocanis sp. nov., from the vagina of a dog.
International Journal of Systematic and Evolutionary Microbiology, 2002Co-Authors: Lesley Hoyles, Enevold Falsen, Geoffrey Foster, Matthew D. CollinsAbstract:A hitherto undescribed Actinomyces-like bacterium was isolated from the vagina of a dog. Biochemical testing and PAGE analysis of whole-cell proteins indicated that the isolate was phenotypically different from previously described Actinomyces species and related taxa. Sequencing of 165 rRNA showed that the unknown bacterium was distinct from all currently known Actinomyces species. Phylogenetically, the unidentified organism displayed a specific association with Actinomyces europaeus, but a sequence divergence of > 5% demonstrated that it represents a distinct species. Based on both phenotypic and 165 rRNA sequence considerations, it is proposed that the unknown strain from a dog be classified as a novel species, Actinomyces coleocanis sp. nov. The type strain is CCUG 41708T (= CIP 106873T).
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Actinomyces suimastitidis sp. nov., isolated from pig mastitis.
International Journal of Systematic and Evolutionary Microbiology, 2001Co-Authors: Lesley Hoyles, Enevold Falsen, Gull Holmström, Arne Persson, Berit Sjödén, Matthew D. CollinsAbstract:An unusual Actinomyces-like bacterium originating from a pig with mastitis was subjected to a polyphasic taxonomic investigation. The morphological and biochemical characteristics of the organism were consistent with its preliminary assignment to the genus Actinomyces but it did not appear to correspond to any recognized species. PAGE analysis of whole-cell proteins confirmed the phenotypic distinctiveness of the bacterium and 16S rRNA gene sequence analysis demonstrated that it represents a hitherto unknown sub-line amongst a cluster of Actinomyces species which embraces Actinomyces canis, Actinomyces georgiae, Actinomyces hyovaginalis, Actinomyces meyeri, Actinomyces odontolyticus, Actinomyces radingae and Actinomyces turicensis. Based on phylogenetic and phenotypic evidence, it is proposed that the unknown bacterium isolated from pig mastitis be classified as Actinomyces suimastitidis sp. nov. The type strain of Actinomyces suimastitidis is CCUG 39279T (= CIP 106779T).
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Actinomyces funkei sp. nov., isolated from human clinical specimens.
International Journal of Systematic and Evolutionary Microbiology, 2001Co-Authors: Paul A. Lawson, Enevold Falsen, Natalia Nikolaitchouk, Katarina Westling, Matthew D. CollinsAbstract:Three strains of a previously undescribed Actinomyces-like bacterium were isolated from human clinical specimens. Phenotypic studies indicated that the strains were members of the genus Actinomyces and were presumptively identified as Actinomyces turicensis. Comparative 16S rRNA gene sequencing studies showed that although the bacterium is phylogenetically closely related to Actinomyces turicensis, it nevertheless constitutes a new sub-line within the genus Actinomyces. Based on phenotypic and molecular chemical and molecular genetic evidence, it is proposed that the unknown Actinomyces-like bacterium from human clinical specimens be classified as Actinomyces funkei sp. nov. The type strain of Actinomyces funkei is CCUG 42773T (= CIP 106713T).
Enevold Falsen - One of the best experts on this subject based on the ideXlab platform.
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Actinomyces vaccimaxillae sp. nov., from the jaw of a cow.
International Journal of Systematic and Evolutionary Microbiology, 2003Co-Authors: Val Hall, Enevold Falsen, Matthew D. Collins, Roger A Hutson, Elisabeth Inganäs, Brian I DuerdenAbstract:A previously undescribed Actinomyces-like bacterium was isolated from a lesion in the jaw of a cow. Based on its cellular morphology and the results of biochemical testing, the organism was tentatively identified as a member of the genus Actinomyces. Comparative 16S rRNA gene sequencing studies showed that the bacterium represents a hitherto unknown species within the genus Actinomyces, and is related to a group of species that includes Actinomyces turicensis and its close relatives. It is proposed that the unknown organism be classified as Actinomyces vaccimaxillae sp. nov. (the type strain is CCUG 46091T=CIP 107423T).
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Actinomyces oricola sp. nov., from a human dental abscess.
International journal of systematic and evolutionary microbiology, 2003Co-Authors: Val Hall, Enevold Falsen, Matthew D. Collins, Roger A Hutson, Elisabeth Inganäs, Brian I DuerdenAbstract:A previously undescribed Actinomyces-like bacterium was isolated from a human dental abscess. Based on its cellular morphology and the results of biochemical testing the organism was tentatively identified as a member of the genus Actinomyces, but it did not correspond to any currently recognized species of this genus. Comparative 16S rRNA gene sequencing studies showed the bacterium represents a hitherto unknown subline within the genus Actinomyces, clustering within a group of species, which includes Actinomyces bovis, the type species of the genus. Based on biochemical and molecular phylogenetic evidence, it is proposed that the unknown organism recovered from a dental abscess be classified as a new species, Actinomyces oricola sp. nov. The type strain of Actinomyces oricola is R5292(T) (=CCUG 46090(T)=CIP 107639(T)).
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Actinomyces coleocanis sp. nov., from the vagina of a dog.
International Journal of Systematic and Evolutionary Microbiology, 2002Co-Authors: Lesley Hoyles, Enevold Falsen, Geoffrey Foster, Matthew D. CollinsAbstract:A hitherto undescribed Actinomyces-like bacterium was isolated from the vagina of a dog. Biochemical testing and PAGE analysis of whole-cell proteins indicated that the isolate was phenotypically different from previously described Actinomyces species and related taxa. Sequencing of 165 rRNA showed that the unknown bacterium was distinct from all currently known Actinomyces species. Phylogenetically, the unidentified organism displayed a specific association with Actinomyces europaeus, but a sequence divergence of > 5% demonstrated that it represents a distinct species. Based on both phenotypic and 165 rRNA sequence considerations, it is proposed that the unknown strain from a dog be classified as a novel species, Actinomyces coleocanis sp. nov. The type strain is CCUG 41708T (= CIP 106873T).
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Actinomyces suimastitidis sp. nov., isolated from pig mastitis.
International Journal of Systematic and Evolutionary Microbiology, 2001Co-Authors: Lesley Hoyles, Enevold Falsen, Gull Holmström, Arne Persson, Berit Sjödén, Matthew D. CollinsAbstract:An unusual Actinomyces-like bacterium originating from a pig with mastitis was subjected to a polyphasic taxonomic investigation. The morphological and biochemical characteristics of the organism were consistent with its preliminary assignment to the genus Actinomyces but it did not appear to correspond to any recognized species. PAGE analysis of whole-cell proteins confirmed the phenotypic distinctiveness of the bacterium and 16S rRNA gene sequence analysis demonstrated that it represents a hitherto unknown sub-line amongst a cluster of Actinomyces species which embraces Actinomyces canis, Actinomyces georgiae, Actinomyces hyovaginalis, Actinomyces meyeri, Actinomyces odontolyticus, Actinomyces radingae and Actinomyces turicensis. Based on phylogenetic and phenotypic evidence, it is proposed that the unknown bacterium isolated from pig mastitis be classified as Actinomyces suimastitidis sp. nov. The type strain of Actinomyces suimastitidis is CCUG 39279T (= CIP 106779T).
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Actinomyces funkei sp. nov., isolated from human clinical specimens.
International Journal of Systematic and Evolutionary Microbiology, 2001Co-Authors: Paul A. Lawson, Enevold Falsen, Natalia Nikolaitchouk, Katarina Westling, Matthew D. CollinsAbstract:Three strains of a previously undescribed Actinomyces-like bacterium were isolated from human clinical specimens. Phenotypic studies indicated that the strains were members of the genus Actinomyces and were presumptively identified as Actinomyces turicensis. Comparative 16S rRNA gene sequencing studies showed that although the bacterium is phylogenetically closely related to Actinomyces turicensis, it nevertheless constitutes a new sub-line within the genus Actinomyces. Based on phenotypic and molecular chemical and molecular genetic evidence, it is proposed that the unknown Actinomyces-like bacterium from human clinical specimens be classified as Actinomyces funkei sp. nov. The type strain of Actinomyces funkei is CCUG 42773T (= CIP 106713T).
Guido Funke - One of the best experts on this subject based on the ideXlab platform.
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Actinomyces europaeus sp nov isolated from human clinical specimens
International Journal of Systematic and Evolutionary Microbiology, 1997Co-Authors: Guido Funke, Enevold Falsen, Cristina Pascual, Norbert Weiss, Eva Akervall, Nerea Alvarez, Luc Sabbe, Leo M Schouls, Matthew D. CollinsAbstract:Ten strains of a hitherto undescribed catalase-negative, facultatively anaerobic, coryneform bacterium were isolated or collected by workers at three European clinical bacteriology laboratories or reference centers. These strains were isolated from humans, and most came from abscess material. Biochemical and chemotaxonomic characterization revealed that the strains belonged to the genus Actinomyces. The phenotypic features of the 10 strains were incompatible with the descriptions of the previously established Actinomyces species. A comparative 16S rRNA gene sequence analysis demonstrated that the previously undescribed strains constitute a new line in the genus Actinomyces. The name Actinomyces europaeus sp. nov. is proposed for these clinical isolates. The type strain is CCUG 32789A.
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assignment of Actinomyces pyogenes like cdc coryneform group e bacteria to the genus Actinomyces as Actinomyces radingae sp nov and Actinomyces turicensis sp nov
Letters in Applied Microbiology, 1995Co-Authors: J Wust, S Stubbs, Guido Funke, Norbert Weiss, Matthew D. CollinsAbstract:In a previous study the authors reported the characterization of some facultatively anaerobic, Gram-positive, non-sporeforming rods which were found in mixed cultures from various infectious processes, including patients with otitis, empyema, perianal abscesses and decubitus ulcers. Phenotypically these organisms closely resembled Actinomyces pyogenes although their precise taxonomic position remained unknown. In the present investigation the authors have determined the 16S rRNA gene sequences of some representative strains of the Actinomyces pyogenes-like bacteria and report the results of a comparative sequence analysis. On the basis of the results of the present and earlier findings two new Actinomyces species, Actinomyces radingae sp. nov. and Actinomyces turicensis sp. nov. are proposed. The type strains are DSM 9169 T and DSM 9168 T , respectively.
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description of human derived centers for disease control coryneform group 2 bacteria as Actinomyces bernardiae sp nov
International Journal of Systematic and Evolutionary Microbiology, 1995Co-Authors: Guido Funke, Cristina Pascual Ramos, Norbert Weiss, Jose F Fernandezgarayzabal, Matthew D. CollinsAbstract:Biochemical, chemotaxonomic, and molecular methods were used to establish the precise taxonomic position of the Centers for Disease Control (CDC) coryneform group 2 bacteria. The results of a comparative 16S rRNA sequence analysis demonstrated that the CDC coryneform group 2 bacteria constitute a distinct species within the genus Actinomyces. Actinomyces pyogenes was found to be the closest genealogical relative of the CDC coryneform group 2 bacteria, although these taxa were readily distinguished from each other and other Actinomyces spp. by using phenotypic criteria. On the basis of our findings we propose the name Actinomyces bernardiae sp. nov. for the CDC coryneform group 2 bacteria. The type strain is DSM 9152 (CCUG 33419).
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assignment of human derived cdc group 1 coryneform bacteria and cdc group 1 like coryneform bacteria to the genus Actinomyces as Actinomyces neuii subsp neuii sp nov subsp nov and Actinomyces neuii subsp anitratus subsp nov
International Journal of Systematic and Evolutionary Microbiology, 1994Co-Authors: Guido Funke, S Stubbs, A Von Graevenitz, Matthew D. CollinsAbstract:Almost the entire 16S rRNA gene sequences of some strains of CDC group 1 and group 1-like coryneform bacteria, isolated from human sources, were determined. Comparative analysis of the rRNA sequence data revealed that both groups of coryneforms belong to the genus Actinomyces. On the basis of the present molecular findings and previous biochemical studies, we propose a new Actinomyces species, Actinomyces neuii sp. nov., containing Actinomyces neuii subsp. neuii subsp. nov. for CDC group 1 coryneform bacteria and Actinomyces neuii subsp. anitratus subsp. nov. for CDC group 1-like coryneform bacteria.
Norbert Weiss - One of the best experts on this subject based on the ideXlab platform.
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Actinomyces europaeus sp nov isolated from human clinical specimens
International Journal of Systematic and Evolutionary Microbiology, 1997Co-Authors: Guido Funke, Enevold Falsen, Cristina Pascual, Norbert Weiss, Eva Akervall, Nerea Alvarez, Luc Sabbe, Leo M Schouls, Matthew D. CollinsAbstract:Ten strains of a hitherto undescribed catalase-negative, facultatively anaerobic, coryneform bacterium were isolated or collected by workers at three European clinical bacteriology laboratories or reference centers. These strains were isolated from humans, and most came from abscess material. Biochemical and chemotaxonomic characterization revealed that the strains belonged to the genus Actinomyces. The phenotypic features of the 10 strains were incompatible with the descriptions of the previously established Actinomyces species. A comparative 16S rRNA gene sequence analysis demonstrated that the previously undescribed strains constitute a new line in the genus Actinomyces. The name Actinomyces europaeus sp. nov. is proposed for these clinical isolates. The type strain is CCUG 32789A.
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assignment of Actinomyces pyogenes like cdc coryneform group e bacteria to the genus Actinomyces as Actinomyces radingae sp nov and Actinomyces turicensis sp nov
Letters in Applied Microbiology, 1995Co-Authors: J Wust, S Stubbs, Guido Funke, Norbert Weiss, Matthew D. CollinsAbstract:In a previous study the authors reported the characterization of some facultatively anaerobic, Gram-positive, non-sporeforming rods which were found in mixed cultures from various infectious processes, including patients with otitis, empyema, perianal abscesses and decubitus ulcers. Phenotypically these organisms closely resembled Actinomyces pyogenes although their precise taxonomic position remained unknown. In the present investigation the authors have determined the 16S rRNA gene sequences of some representative strains of the Actinomyces pyogenes-like bacteria and report the results of a comparative sequence analysis. On the basis of the results of the present and earlier findings two new Actinomyces species, Actinomyces radingae sp. nov. and Actinomyces turicensis sp. nov. are proposed. The type strains are DSM 9169 T and DSM 9168 T , respectively.
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description of human derived centers for disease control coryneform group 2 bacteria as Actinomyces bernardiae sp nov
International Journal of Systematic and Evolutionary Microbiology, 1995Co-Authors: Guido Funke, Cristina Pascual Ramos, Norbert Weiss, Jose F Fernandezgarayzabal, Matthew D. CollinsAbstract:Biochemical, chemotaxonomic, and molecular methods were used to establish the precise taxonomic position of the Centers for Disease Control (CDC) coryneform group 2 bacteria. The results of a comparative 16S rRNA sequence analysis demonstrated that the CDC coryneform group 2 bacteria constitute a distinct species within the genus Actinomyces. Actinomyces pyogenes was found to be the closest genealogical relative of the CDC coryneform group 2 bacteria, although these taxa were readily distinguished from each other and other Actinomyces spp. by using phenotypic criteria. On the basis of our findings we propose the name Actinomyces bernardiae sp. nov. for the CDC coryneform group 2 bacteria. The type strain is DSM 9152 (CCUG 33419).
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Phylogenetic evidence for the transfer of Eubacterium suis to the genus Actinomyces as Actinomyces suis comb. nov.
International Journal of Systematic and Evolutionary Microbiology, 1992Co-Authors: Wolfgang Ludwig, Gudrun Kirchhof, Michael Weizenegger, Norbert WeissAbstract:The 16S rRNA primary structures of Eubacterium suis DSM 20639T (T = type strain) and Bifidobacterium bifidum DSM 20456T were determined by sequencing in vitro amplified rDNA. Sequence comparisons indicated that B. bifidum is moderately related to representatives of the genera Actinomyces and Mobiluncus. The closest relative of E. suis is Actinomyces pyogenes. E. suis and A. pyogenes are more closely related phylogenetically to one another than to the other Actinomyces species that have been investigated by using comparative 16S rRNA analysis. Therefore, we propose that E. suis should be transferred to the genus Actinomyces as Actinomyces suis comb. nov.
Cristina Pascual Ramos - One of the best experts on this subject based on the ideXlab platform.
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Actinomyces graevenitzii sp nov isolated from human clinical specimens
International Journal of Systematic and Evolutionary Microbiology, 1997Co-Authors: Cristina Pascual Ramos, Enevold Falsen, Berit Sjödén, Eva Akervall, Nerea Alvarez, Matthew D. CollinsAbstract:Four strains of a previously unknown, catalase-negative, facultatively anaerobic, gram-positive, rod-shaped organism originating from humans were characterized by biochemical, chemical, and molecular taxonomic methods. The four strains phenotypically closely resembled one another, and although they possessed characteristics consistent with membership in the genus Actinomyces, they differed from all previously recognized species of this genus. The results of comparative 16S rRNA gene sequencing studies demonstrated that the unknown human bacterium was phylogenetically a member of the genus Actinomyces. Within the genus Actinomyces, the unidentified bacterium formed a loose, but statistically significant, association with a subgroup which included Actinomyces bovis, the type species of the genus. 16S rRNA sequence divergence values of >6%, however, unequivocally demonstrated that the unidentified bacterium represents a new subline of the genus Actinomyces. A new species, Actinomyces graevenitzii, is proposed for the four new isolates. The type strain of A. graevenitzii is CCUG 27294.
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phylogenetic analysis of the genus Actinomyces based on 16s rrna gene sequences description of arcanobacterium phocae sp nov arcanobacterium bernardiae comb nov and arcanobacterium pyogenes comb nov
International Journal of Systematic and Evolutionary Microbiology, 1997Co-Authors: Cristina Pascual Ramos, Geoff Foster, Matthew D. CollinsAbstract:A systematic phylogenetic analysis of the genus Actinomyces was performed. The 16S rRNA gene sequences of 13 Actinomyces species, an unnamed Actinomyces strain (ATCC 49338), and an Actinomyces-like isolate from sea mammals were determined. Comparative sequence analysis with closely related taxa revealed phylogenetic diversity and internal structure within the genus Actinomyces. In addition, some members of other genera (viz., the genera Arcanobacterium, Mobiluncus, and Rothia) were shown to be phylogenetically intermixed with the Actinomyces species. It was evident from both distance and tree topology considerations that the genus Actinomyces is in urgent need of taxonomic revision and requires subdivision into several genera. Based on the results of the present study it is proposed that Actinomyces bernardiae and Actinomyces pyogenes be assigned to the genus Arcanobacterium as Arcanobacterium bernardiae comb. nov. and Arcanobacterium pyogenes comb. nov., respectively. In addition, a new species, Arcanobacterium phocae, is proposed for Actinomyces-like bacteria isolated from seals.
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description of human derived centers for disease control coryneform group 2 bacteria as Actinomyces bernardiae sp nov
International Journal of Systematic and Evolutionary Microbiology, 1995Co-Authors: Guido Funke, Cristina Pascual Ramos, Norbert Weiss, Jose F Fernandezgarayzabal, Matthew D. CollinsAbstract:Biochemical, chemotaxonomic, and molecular methods were used to establish the precise taxonomic position of the Centers for Disease Control (CDC) coryneform group 2 bacteria. The results of a comparative 16S rRNA sequence analysis demonstrated that the CDC coryneform group 2 bacteria constitute a distinct species within the genus Actinomyces. Actinomyces pyogenes was found to be the closest genealogical relative of the CDC coryneform group 2 bacteria, although these taxa were readily distinguished from each other and other Actinomyces spp. by using phenotypic criteria. On the basis of our findings we propose the name Actinomyces bernardiae sp. nov. for the CDC coryneform group 2 bacteria. The type strain is DSM 9152 (CCUG 33419).
