Taxonomy Citation ID | Reference | ||||
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24864 |
Kelly DP,
Uchino Y,
Huber H,
Amils R,
Wood AP,
( 2007 ) Reassessment of the phylogenetic relationships of Thiomonas cuprina. PMID : 17978245 DOI : 10.1099/ijs.0.65537-0 Abstract >>
The published sequence of the 16S rRNA gene of Thiomonas cuprina strain H?5 (=DSM 5495T) (GenBank accession no. U67162) was found to be erroneous. The 16S rRNA genes from the type strain held by the DSMZ since 1990 (DSM 5495T=NBRC 102145T) and strain H?5 maintained frozen in the Universit?t Regensburg for 23 years (=NBRC 102094) were sequenced and found to be identical, but to show no significant similarity to the U67162 sequence. This also casts some doubt on the previously published 5S and 23S rRNA gene sequences (GenBank accession nos U67171 and X75567). The correct 16S rRNA gene sequence showed 99.8% identity to those from Thiomonas delicata NBRC 14566T and 'Thiomonas arsenivorans' DSM 16361. The properties of these three species are re-evaluated, and emended descriptions are provided for the genus Thiomonas and the species Thiomonas cuprina.
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23080 |
Katayama Y,
Uchino Y,
Wood AP,
Kelly DP,
( 2006 ) Confirmation of Thiomonas delicata (formerly Thiobacillus delicatus) as a distinct species of the genus Thiomonas Moreira and Amils 1997 with comments on some species currently assigned to the genus. PMID : 17082389 DOI : 10.1099/ijs.0.64299-0 Abstract >>
The transfer of Thiobacillus delicatus to the genus Thiomonas as a distinct species, Thiomonas delicata (type strain NBRC 14566T), is confirmed by its morphological and physiological properties, DNA-DNA hybridization and the grouping of its 16S rRNA gene sequence with those of other species of the genus. An emended formal description of Thiomonas delicata is given. The status of Thiomonas cuprina DSM 5495T as a member of the genus is reconsidered.
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16955 | 1222 |
( 1997 ) Phylogeny of Thiobacillus cuprinus and other mixotrophic thiobacilli: proposal for Thiomonas gen. nov. PMID : 9103643 DOI : 10.1099/00207713-47-2-522 Abstract >>
The complete 5S and 16S ribosomal DNA (rDNA) sequences of the facultatively chemolithotrophic bacterium Thiobacillus cuprinus and results of a comparison of these sequences with homologous sequences from several proteobacterial species supported affiliation of T. cuprinus with the beta 1 subgroup of the Proteobacteria. T. cuprinus, Thiobacillus intermedius, Thiobacillus perometabolis, and Thiobacillus thermosulfatus form a phylogenetic cluster that comprises some of the thiobacilli capable of mixotrophic growth. This cluster is related to some pseudomonads and Alcaligenes species belonging to the beta subclass. In addition, a low-frequency restriction fragment analysis (LFRFA) of some mixotrophic thiobacilli and some related species was carried out by using pulsed-field gel electrophoresis (PFGE) to determine the SpeI and XbaI macrorestriction patterns and genome sizes of these organisms. The correlation of the LFRFA results and the 16S rDNA analysis results and the usefulness of the two analyses are discussed. The PFGE fingerprints suggested that Thiobacillus sp. strain ATCC 27793 is related to T. intermedius rather than to T. perometabolis, as described previously. The distinctive characteristics of the mixotrophic species analyzed in this work, their phylogenetic relatedness, and their physiological differences from other groups belonging to the Proteobacteria, including other thiobacilli, suggest that these organisms should be transferred to a new genus, the genus Thiomonas gen. nov.
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15231 |
Battaglia-Brunet F,
Joulian C,
Garrido F,
Dictor MC,
Morin D,
Coupland K,
Barrie Johnson D,
Hallberg KB,
Baranger P,
( 2006 ) Oxidation of arsenite by Thiomonas strains and characterization of Thiomonas arsenivorans sp. nov. PMID : 16341463 DOI : 10.1007/s10482-005-9013-2 Abstract >>
A novel bacterium, strain b6(T) (T=type strain), was isolated from a disused mine site by growth using arsenite [As(III)] as energy source in a simple mineral medium. Cells of strain b6(T) were rod-shaped, Gram-negative, non-sporulating and motile. Optimum growth occurred at temperatures between 20 and 30 degrees C, and at pH between 4.0 and 7.5. Strain b6(T) grew chemoautotrophically on As(III), sulphur and thiosulphate, and also heterotrophically on yeast extract and a variety of defined organic compounds. Several other Thiomonas strains, including the type species Thiomonas (Tm.) intermedia, were able to oxidize As(III), though only strain b6(T) and strain NO115 could grow using As(III) as sole energy source in the absence of any organic compound. The G+C content of the DNA of strain b6(T) was 65.1 mol %. Comparative small subunit (SSU) ribosomal RNA (rRNA) analysis indicated that strain b6(T) belongs to the genus Thiomonas in the beta-subdivision of the Proteobacteria. It was closely related to an unnamed Thiomonas strain (NO115) isolated from a Norwegian mining site, though sequence identities between strain b6(T) and characterized Thiomonas species were less than 95%. DNA-DNA hybridization between strain b6(T) and the type species of the genus Tm. intermedia showed less than 50% homology. On the basis of phylogenetic and phenotypic characteristics, strain b6(T) (DSM 16361(T), LMG 22795(T)) is proposed as the type strain of the new species Thiomonas arsenivorans, sp. nov.
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18681 |
( 2006 ) List of new names and new combinations previously effectively, but not validly, published. PMID : 16627632 DOI : 10.1099/ijs.0.64380-0 Abstract >>
The purpose of this announcement is to effect the valid publication of the following new names and new combinations under the procedure described in the Bacteriological Code (1990 Revision). Authors and other individuals wishing to have new names and/or combinations included in future lists should send three copies of the pertinent reprint or photocopies thereof to the IJSEM Editorial Office for confirmation that all of the other requirements for valid publication have been met. It is also a requirement of IJSEM and the ICSP that authors of new species, new subspecies and new combinations provide evidence that types are deposited in two recognized culture collections in two different countries (i.e. documents certifying deposition and availability of type strains). It should be noted that the date of valid publication of these new names and combinations is the date of publication of this list, not the date of the original publication of the names and combinations. The authors of the new names and combinations are as given below, and these authors' names will be included in the author index of the present issue and in the volume author index. Inclusion of a name on these lists validates the publication of the name and thereby makes it available in bacteriological nomenclature. The inclusion of a name on this list is not to be construed as taxonomic acceptance of the taxon to which the name is applied. Indeed, some of these names may, in time, be shown to be synonyms, or the organisms may be transferred to another genus, thus necessitating the creation of a new combination.
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5125 |
Huber H,
Stetter KO,
( 1990 ) Thiobacillus cuprinus sp. nov., a Novel Facultatively Organotrophic Metal-Mobilizing Bacterium. PMID : 16348110 PMC : PMC183337 Abstract >>
Five strains of mesophilic, facultatively organotrophic, ore-leaching eubacteria were isolated from solfatara fields in Iceland and a uranium mine in the Federal Republic of Germany. The new organisms are aerobic gram-negative rods. They can use sulfidic ores or elemental sulfur as sole energy source, indicating that they belong to the genus Thiobacillus. Alternatively, they grow on organic substrates such as yeast extract, peptone, and pyruvate. In contrast to the other leaching bacteria known so far, the new isolates are unable to oxidize ferrous iron. They consist of extreme and moderate acidophiles growing optimally at pH 3 and 4, respectively. The extreme acidophiles showed leaching characteristics similar to those shown by Thiobacillus ferrooxidans, while the moderate acidophiles exhibited a pronounced preference for copper leaching on some chalcopyrite ores. The G+C content of the DNA is between 66 and 69 mol%, depending on the isolate. In DNA-DNA hybridization experiments, the new strains showed homologies among each other of >70%, indicating that they belong to the same species. No significant DNA homology to Thiobacillus reference strains was detectable. Therefore, the new isolates represent a new species of Thiobacillus, which we name Thiobacillus cuprinus. Isolate H?5 is designated as the type strain (DSM 5495).
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23079 | Kelly, D.P., and Wood, A.P. "Genus Incertae Sedis XVIII. Thiomonas Moreira and Amils 1997, 527VP." In: D.J. Brenner, N.R. Krieg, J.T. Staley and G. M. Garrity (eds), Bergeys Manual of Systematic Bacteriology, second edition, vol. 2 (The Proteobacteria), part C (The Alpha-, Beta-, Delta-, and Epsilonproteobacteria), Springer, New York, 2005, pp. 757-759. [No PubMed record available.] | ||||
16956 | |||||
5124 | Associate Editor, IJSB "Notification that new names and new combinations have appeared in volume 47, No. 2, of the IJSB (footnote d)." Int. J. Syst. Bacteriol. (1997) 47:917-919. [Note: the name is 'sp. nov.' rather than 'comb. nov.'] | 41602 |
Battaglia-Brunet F,
El Achbouni H,
Quemeneur M,
Hallberg KB,
Kelly DP,
Joulian C,
( 2011 ) Proposal that the arsenite-oxidizing organisms Thiomonas cuprina and 'Thiomonas arsenivorans' be reclassified as strains of Thiomonas delicata, and emended description of Thiomonas delicata. PMID : 21216915 DOI : 10.1099/ijs.0.023408-0 Abstract >>
The three As(III)-oxidizing members of the class Betaproteobacteria Thiomonas delicata, Thiomonas cuprina and 'Thiomonas arsenivorans' were isolated from mining sites in geographically distinct areas, namely Japan, Germany and France, respectively. They are all able to oxidize As(III) but only 'T. arsenivorans' and T. cuprina show efficient autotrophic growth with As(III) and are able to grow on a sole carbon source. These two organisms are also motile, whereas T. delicata is not. Only T. cuprina can grow autotrophically on chalcopyrite. The three strains share >99% gene sequence similarity with each other based on their 16S rRNA genes and 16S-23S ITS regions. DNA-DNA hybridization results are above, or close to, the threshold value of 70% recommended for the definition of bacterial species. The three taxa show very similar fatty acid profiles with differences only in five minor fatty acid components. They possess phylogenetic and chemotaxonomic similarities supporting the reclassification of these taxa as a single species. We propose that 'T. arsenivorans' and T. cuprina be reassigned as strains of T. delicata (type strain DSM 17897(T)).
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