- Volume 47, Issue 3, 1997
Volume 47, Issue 3, 1997
- Original Papers Relating To Systematic Bacteriology
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Transfer of Rhizobium loti, Rhizobium huakuii, Rhizobium ciceri, Rhizobium mediterraneum, and Rhizobium tianshanense to Mesorhizobium gen. nov.
AbstractReasons are advanced for removal of Rhizobium ciceri, Rhizobium huakuii, Rhizobium loti, Rhizobium mediterraneum, and Rhizobium tianshanense from the genus Rhizobium and for establishment of Mesorhizobium gen. nov. for these species. A description of the genus Mesorhizobium and amended descriptions of Mesorhizobium ciceri, Mesorhizobium huakuii, Mesorhizobium loti, Mesorhizobium mediterraneum, and Mezorhizobium tianshanense are provided.
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Characterization of Some Actinomyces-Like Isolates from Human Clinical Specimens: Reclassification of Actinomyces suis (Soltys and Spratling) as Actinobaculum suis comb. nov. and Description of Actinobaculum schaalii sp. nov.
More LessAbstractFive strains of a hitherto unknown Actinomyces-like bacterium were isolated from human clinical sources, including blood cultures. Biochemical and chemotaxonomic characterization indicated that the strains were distinct from previously described Actinomyces and Arcanobacterium species. A comparative 16S rRNA gene sequence analysis demonstrated that the undescribed strains constitute a new subline within the Actinomyces-Arcanobacterium species complex. The closest known relative of the isolates was found to be Actinomyces suis, although a 16S rRNA sequence divergence value of approximately 6% clearly demonstrated that the unknown bacterium represents a distinct species. Based on the results of the present and earlier phylogenetic investigations, it is proposed that Actinomyces suis should be reclassified in a new genus, the genus Actinobaculum, as Actinobaculum suis comb. nov. In addition, a new species, Actinobaculum schaalii, is proposed for the Actinomyces-like bacterium from human sources. The type strain of Actinobaculum schaalii is CCUG 27420.
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- Matters Relating To The International Committee On Systematic Bacteriology
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Reclassification of Nocardioides simplex ATCC 13260, ATCC 19565, and ATCC 19566 as Rhodococcus erythropolis
More LessAbstractOur phylogenetic analysis based on 16S ribosomal DNA (rDNA) sequences and chemotaxonomic analyses showed that Nocardioides simplex ATCC 13260, ATCC 19565, and ATCC 19566 are more closely related to the genus Rhodococcus, especially Rhodococcus erythropolis, than to the genus Nocardioides. N. simplex ATCC 13260 and N. simplex ATCC 19565 and ATCC 19566 exhibited levels of 16S rDNA similarity of 99.4 and 100%, respectively, to R. erythropolis DSM 43066T. Strains ATCC 13260, ATCC 19565, and ATCC 19566 had meso-diaminopimelic acid in their peptidoglycan and MK-8(H2) as their predominant menaquinone. These three strains produced cellular fatty acid patterns similar to those of R. erythropolis strains rather than those of Nocardioides species. Therefore, N. simplex ATCC 13260, ATCC 19565, and ATCC 19566 should be reclassified as strains of R. erythropolis Gray and Thornton 1928.
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Taxonomic Note: Necessary Correction of Specific Epithets Formed as Substantives (Nouns) “in Apposition”
More LessAbstractForming Latin species names (specific epithets) as “nominative nouns in apposition” (according to Rule 12c of the International Code of Nomenclature of Bacteria) has often been misunderstood or posed problems. Here, this grammatical construction is explained, and 24 cases that did not meet the requirements for this type of construction are corrected to a genitive noun or adjectival form in agreement with Rule 12c.
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Rejection of Lactobacillus panis (Wiese et al. 1996) Request for an Opinion
More LessAbstractLactobacillus panis (Wiese et al. 1996) has not been validly published because type strain DSM 6035 is not available from any culture collection. The lack of an available type strain is not consistent with Principle 1 of the International Code of Nomenclature of Bacteria: Bacteriological Code and may cause confusion if taxonomists are not able to compare new Lactobacillus isolates with an L. panis type strain. We request an opinion which indicates whether the name L. panis should be rejected. In addition, on behalf of the Subcommittee on Taxonomy of Bifidobacterium, Lactobacillus, and Related Organisms, we strongly support an emendation of Rule 30 of the Bacteriological Code proposed by the Judicial Commission of the International Committee on Systematic Bacteriology in Jerusalem in 1996. This emendation would make mandatory the availability of a type strain of a new species from a culture collection and thus would prevent descriptions of invalidly published species.
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- Errata
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Volumes and issues
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Volume 74 (2024)
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