- Volume 49, Issue 2, 1999
Volume 49, Issue 2, 1999
- New Taxa - Gram-Positive Bacteria
-
-
-
Nocardioides nitrophenolicus sp. nov., a p-nitrophenol-degrading bacterium
More LessA p-nitrophenol-degrading bacterial strain was isolated from industrial wastewater. This strain (NSP41T) was identified as a member of the genus Nocardioides from chemotaxonomic characterizations and phylogenetic inference based on 16S rDNA sequence analysis. The G+C content is 71·4 mol%. The diamino acid in the cell-wall peptidoglycan is ll-diaminopimelic acid. The predominant menaquinone is MK-8(H4). The cellular fatty acid profile is similar to those of Nocardioides species. 16S rDNA sequence analysis show that strain NSP41T is the most related to Nocardioides simplex strains with a level of nucleotide similarity of 98·6%. The levels of 16S rDNA similarity between strain NSP41T and other Nocardioides species ranged from 93·8 to 95·1 %. This organism is distinguishable from some other Nocardioides species as well as N. simplex strains by DNA–DNA relatedness data. This organism is different from N. simplex strains in some phenotypic characteristics. Therefore, on the basis of the data presented, a new species of the genus Nocardioides, Nocardioides nitrophenolicus, is proposed. The type strain of the new species is strain NSP41T ( = KCTC 0457BPT).
-
-
-
-
Williamsia muralis gen. nov., sp. nov., isolated from the indoor environment of a children’s day care centre
The taxonomic status of an actinomycete (MA140/96T) isolated from indoor building materials of a children’s day care centre was studied using the polyphasic approach. The cell morphology was atypical for an actinomycete, electron microscopy revealed a hairy surface, highly unusual for Gram-positive bacteria. The organisms grew at 10–37 °C, no growth was visible at 5 °C and 45 °C in 5 d. The cell wall contained the diamino acid meso-diaminopimelic acid and the sugars arabinose, galactose, mannose and ribose. The phospholipids phosphatidylethanolamine, phosphatidylinositol, phosphatidylglycerol and diphosphatidylglycerol were detected. The only menaquinone found was MK-9(H2). The fatty acid pattern was composed of palmitic acid (23·6%) palmitoleic acid (16·5%) and another hexadecenoic acid 16:1cis11 (1·4%), oleic acid (29·9%), stearic acid (2·9%) and the 10-methyl-branched tuberculostearic acid (23·2%). A gas-chromatographic analysis of the mycolic acid revealed a carbon-chain length of C50–C56. The G+C was 64·8 mol%. The results of 16S rDNA sequence comparisons revealed that strain MA140/96T represents a new lineage in the suborder Corynebacterineae of the order Actinomycetales. Therefore, it was concluded that strain MA140/96T should be assigned to a new genus and species, for which the name Williamsia muralis gen. nov., sp. nov. is proposed. The type strain of the species is MA140/96T (= DSM 44343T).
-
-
-
Streptococcus intestinalis Robinson et al. 1988 and Streptococcus alactolyticus Farrow et al. 1984 are phenotypically indistinguishable
More LessThe one-dimensional whole-cell protein patterns and a variety of biochemical characteristics of the type and reference strains of Streptococcus intestinalis and Streptococcus alactolyticus were studied. All the data revealed that strain of both species were indistinguishable. Reported differences in haemolytic activity and presence of Lancefield antigens were not reproduced. All strains were α-haemolytic. The S. intestinalis type strain possessed the group G antigen, but a second S. intestinalis reference strain and all of the S. alactolyticus strains possessed the group D antigen. All strains produced urease activity (albeit some after prolonged incubation), a characteristic considered important for S. intestinalis. Given the congruence between wholecell protein electrophoresis and percentage of DNA-DNA hybridization, these data suggest that Streptococcus intestinalis Robinson et al. 1988 is a junior synonym of Streptococcus alactolyticus Farrow et al. 1984.
-
-
-
Classification of ‘Nocardioides fulvus’ IFO 14399 and Nocardioides sp. ATCC 39419 in Kribbella gen. nov., as Kribbella flavida sp. nov. and Kribbella sandramycini sp. nov.
By 16S rDNA sequence analysis, two strains identified previously as members of the genus Nocardioides, namely ‘Nocardioides fulvus’ IFO 14399 and Nocardioides sp. ATCC 39419, were found to form lines of descent distinct from the genus Nocardioides. Therefore, the two strains were studied taxonomically in detail by phenotypic, particularly chemotaxonomic, characterization, and by phylogenetic analysis including other related taxa. The genomic DNA G+C contents of ‘N. fulvus’ IFO 14399 and Nocardioides sp. ATCC 39419 are 70 and 68 mol%, respectively. The two strains contain ll-diaminopimelic acid as the diamino acid in their peptidoglycan, together with l-alanine at position 1 of the peptide subunit. The predominant menaquinone found in the two strains is MK-9(H4). The major cellular fatty acid found in the two strains is anteiso-C15:0, which is a minor component of members of the genus Nocardioides. The diagnostic polar lipid of the two strains is phosphatidylcholine. A phylogenetic tree was constructed which showed that the two strains form evolutionary lineages distinct from other ll-diaminopimelic-acid-containing taxa such as, for example, the genus Nocardioides. On the basis of our data, a new genus, Kribbella gen. nov., and two new species, Kribbella flavida gen. nov., sp. nov. and Kribbellla sandramycini gen. nov., sp. nov., are proposed. It is also proposed that the new genus be included in the family Nocardioidaceae.
-
-
-
Kitasatospora cheerisanensis sp. nov., a new species of the genus Kitasatospora that produces an antifungal agent
An actinomycete, strain YC75T, which produced bafilomycin-like antifungal compounds, was identified as a member of the genus Kitasatospora on the basis of morphological and chemotaxonomic characteristics. The strain produced the aerial and fragmenting vegetative mycelia consisting of straight chains of 20 or more smooth-surfaced spores. Submerged spores were formed in tryptic soy broth. No soluble pigments were formed. Whole-cell hydrolysates contained glucose and mannose, but not galactose. The 16S rDNA sequence of YC75T was compared with those of the other representative kitasatosporae and streptomycetes. Strain YC75T formed a significant monophyletic clade with Kitasatospora phosalacinea. The levels of DNA relatedness between strain YC75T and representatives of the genus Kitasatospora ranged from 16 to 59% including K. phosalacinea (28 and 40%). It is clear from polyphasic evidence that the isolate should be classified as Kitasatospora cheerisanensis sp. nov., whose type strain is YC75T (= KCTC 2395T). The presence of galactose in whole-cell hydrolysates may not be a stable chemical marker for the genus Kitasatospora.
-
-
-
Streptococcus waius sp. nov., a thermophilic streptococcus from a biofilm
More LessThermophilic streptococci were isolated from biofilms on stainless steel samples exposed to pasteurized skimmed milk and from dairy products from a dairy manufacturing plant. The phenotypic characters of these isolates were distinct from those of other thermophilic streptococci of dairy origin (Streptococcus thermophilus and Streptococcus bovis). Genotypic data [restriction endonuclease analysis, ribotyping, random amplified polymorphic DNA (RAPD) profiles, DNA-DNA hybridization and G+C contents] support the classification of these isolates as a new species. The sequence of the 16S rRNA was compared with that of 29 species of streptococci and shown to be significantly different. The sequence of the 16S-23S rRNA intergenic spacer region also differed from published sequences of closely related species. A fluorescent in situ hybridization probe prepared to a specific part of the 16S rRNA gene sequence was able to distinguish the unknown isolates from reference isolates of S. thermophilus and S. bovis. It is proposed that these thermophilic streptococcal isolates from a dairy environment be classified in the genus Streptococcus as a new species, Streptococcus waius (from waiu, the New Zealand Maori word for milk). The type strain is 3/1T(= NZRCC 20100T).
-
-
-
Bacillus silvestris sp. nov., a new member of the genus Bacillus that contains lysine in its cell wall
More LessA Gram-positive, aerobic, rod-shaped, peritrichously flagellated, roundendospore-forming bacterium was isolated from a forest soil near Braunschweig, Lower Saxony, Germany, and designated strain HR3-23T(T = type strain). Morphologically, strain HR3-23T shows the characteristics of a member of the genus Bacillus. The spore position is terminal in a swollen sporangium. Comparative analysis of the 16S rDNA sequence shows strain HR3-23T to be most closely related to Caryophanon tenue (95·8% 16S rRNA similarity) and to Bacillus sphaericus (95·4% 16S rRNA similarity).
Phylogenetically, the isolate clusters among species of Bacillus RNA group 2. The DNA G+C content of isolate HR3-23T is 39·3 mol%, the peptidoglycan type is A4α (l-Lys-d-Glu), the major respiratory lipoquinone is menaquinone MK-7 and the predominant fatty acid is of the iso-C15:0 type. Based on the morphological, chemotaxonomic, physiological and phylogenetic properties, a new species, Bacillus silvestris, is proposed; strain HR3-23Tis the type strain (= DSM 12223T).
-
-
-
Gracilibacillus gen. nov., with description of Gracilibacillus halotolerans gen. nov., sp. nov.; transfer of Bacillus dipsosauri to Gracilibacillus dipsosauri comb. nov., and Bacillus salexigens to the genus Salibacillus gen. nov., as Salibacillus salexigens comb. nov.
More LessA Gram-positive, extremely halotolerant bacterium was isolated from the Great Salt Lake, Utah, USA. The strain, designated NNT (= DSM 11805T), was strictly aerobic, rod-shaped, motile by peritrichous flagella and spore-forming. Strain NNT grew at salinities of 0–20% (w/v) NaCI. A distinctive feature of strain NNT was its optimal growth in salt-free medium. The polar lipid pattern of strain NNT consisted of phosphatidyl glycerol, diphosphatidyl glycerol and two phospholipids of unknown structure. The G+C content of its DNA was 38 mol%. The morphological, physiological and, particularly, the 16S rDNA sequence data, showed that strain NNT was associated with ‘Bacillus group 1’. However, the organisms showing the greatest degree of sequence similarity to strain NNT were members of the genus Halobacillus and the species Marinococcus albus, Virgibacillus pantothenticus. Bacillus salexigens and Bacillus dipsosauri. On the basis of chemotaxonomic data, strain NNT was shown to be chemically most similar to B. salexigens and B. dipsosauri, with the greatest degree of similarity being shown to the latter organism. This was consistent with the 16S rDNA sequence data. Members of the genus Halobacillus comprise a chemically distinct group and can easily be distinguished from all other organisms of ‘Bacillus group 1’. On the basis of the 16S rDNA data, chemotaxonomy and the physiology of strain NNT, it is proposed that this organism is a member of a new species, within a new genus, for which the name Gracilibacillus halotolerans is proposed. It is also proposed that B. dipsosauri be transferred to this genus as Gracilibacillus dipsosauri comb. nov. and that B. salexigens be transferred to the genus Salibacillus gen. nov., as Salibacillus salexigens comb. nov. Finally, additional data is provided to support the transfer of Bacillus pantothenticus to the genus Virgibacillus, as Virgibacillus pantothenticus Heyndrickx et al. (1998).
-
-
-
Nocardia salmonicida nom. rev., a fish pathogen
More LessAn almost complete gene sequence of 16S rDNA of ‘Nocardia salmonicida’ strain JCM 4826Twas determined following cloning and sequencing of the amplified gene. The sequence was aligned with those available for nocardiae and phylogenetic trees inferred using four tree-making algorithms. The organism and the type strain of Nocardia asteroides consistently formed a monophyletic clade with a distant sequence similarity of 97%. However, previous DNA relatedness experiments showed that strain JCM 4826Tand Nocardia asteroides ATCC 19247Tbelong to different genomic species. The organism was also distinguished from representatives of all validly described species of Nocardia using a combination of phenotypic features. The polyphasic evidence showed that the strain merits recognition as a new species of the genus Nocardia. The name proposed for the new species is Nocardia salmonicida nom. rev.
-
-
-
Three new species of the genus Actinobispora of the family Pseudonocardiaceae, Actinobispora alaniniphila sp. nov., Actinobispora aurantiaca sp. nov. and Actinobispora xinjiangensis sp. nov.
More LessThe genus Actinobispora Jiang et al. is characterized by the formation of longitudinally paired spores on both the vegetative and the aerial mycelium, absence of mycolic acid, cell wall chemotype IV (containing mesodiaminopimelic acid as the diamino acid, galactose and arabinose), PVI and MK-9(H2). Comparative studies of morphology, chemical classification and phylogenetic analysis based on the 16S rRNA sequences among the four type strains of the genus Actinobispora and type strains of related genera were carried out. The results indicated that the genus Actinobispora is different from these other genera and should be placed in the family Pseudonocardiaceae Embley et al. 1988 with the genera Amycolatopsis, Pseudonocardia, Saccharomonospora, Saccharopolyspora and Actinopolyspora. On the bases of these results, three new species under the names of Actinobispora alaniniphila sp. nov., Actinobispora aurantiaca sp. nov. and Actinobispora xinjiangensis sp. nov. are proposed; the type strains are CCTCC AA97001T, CCTCC AA97002T and CCTCC AA97020T.
-
- New Taxa - Yeasts
-
-
-
Cystofilobasidiales, a new order of basidiomycetous yeasts
More LessThe order Cystofilobasidiales is described for teleomorphic basidiomycetous yeasts with holobasidia and teliospores. Their septa have dolipores, but lack parenthesomes. d-Glucuronate, nitrate and nitrite are assimilated and myo-inositol is usually assimilated. Coenzyme Q has 8 or 10 isoprenologues. 25S and 18S rDNA sequence analysis indicates a monophyletic branch within the Tremellomycetidae of the Hymenomycetes. Cystofilobasidium is the type genus.
-
-
- Evolution, Phylogeny And Biodiversity
-
-
-
Phylogenetic position of Chitinophaga pinensis in the Flexibacter–Bacteroides–Cytophaga phylum
L. I. Sly, M. Taghavi and M. FeganComparison of the 16S rRNA gene sequence determined for Chitinophaga pinensis showed that this species is most closely related to Flexibacter filiformis in the Flexibacter–Bacteroides–Cytophaga phylum. These two chitinolytic bacteria, which are characterized by transformation into spherical bodies on ageing, belong to a strongly supported lineage that also includes Cytophaga arvensicola, Flavobacterium ferrugineum and Flexibacter sancti. The lineage is distinct from the microcyst-forming species Sporocytophaga myxococcoides.
-
-
-
-
The phylogenetic relationships of Caulobacter, Asticcacaulis and Brevundimonas species and their taxonomic implications
More LessThe phylogenetic relationships among the species of Caulobacter, Asticcacaulis and Brevundimonas were studied by comparison of their 16S rDNA sequences. The analysis of almost complete sequences confirmed the early evolutionary divergence of the freshwater and marine species of Caulobacter reported previously [Stahl, D. A., Key, R., Flesher, B. & Smit, J. (1992). J Bacteriol 174, 2193-2198]. The freshwater species formed two distinct clusters. One cluster contained the species Caulobacter bacteroides, Caulobacter crescentus, Caulobacter fusiformis and Caulobacter henricii. C. bacteroides and C. fusiformis are very closely related (sequence identity 99.8%). The second cluster was not exclusive and contained the species Caulobacter intermedius, Caulobacter subvibrioides and Caulobacter variabilis, as well as Brevundimonas diminuta and Brevundimonas vesicularis. The marine species Caulobacter halobacteroides and Caulobacter maris were very closely related, with a sequence identity of 99.7%. These two species were most closely but distantly related to the marine hyphal/budding bacteria Hyphomonas jannaschiana and Hirschia baltica, which formed a deep phylogenetic line with Rhodobacter sphaeroides and Rhodobacter capsulatus. Caulobacter leidyia is unrelated to the other species of Caulobacter and belongs to the alpha-4 subclass of the Proteobacteria, forming a distinct cluster with Asticcacaulis excentricus and Asticcacaulis biprosthecium. The taxonomic implications of the polyphyletic nature of the genus Caulobacter and the absence of a type culture for the type species of the genus, Caulobacter vibrioides, are discussed.
-
-
-
Patterns of sequence variation in two regions of the 16S rRNA multigene family of Escherichia coli
More LessSequence heterogeneities of variable positions located at regions V1 and V6 of 56 cloned 16S rRNA genes were determined from six Escherichia coli strains. These nucleotides were involved in secondary structure base-pairing of stem-loops. Compensatory and single mutations have occurred but secondary structure was conserved. Eight different sequences were found in the stem at region V1 indicating that in these sites mutation rates are higher than those of homogenization processes. Region V6 showed two different structures (V6-I and V6-II) although heterogeneities were determined in nine sites. Strains ECOR52 and ECOR56 only showed the V6-I sequence, ECOR35 showed V6-II, whereas clones from ECOR42 and ECOR49 showed both types of V6 structures. Results were confirmed by PCR using V6 sequence-specific probes. Stem V6-II was also found in 16S rRNA sequences deposited in the RDP (Ribosomal Database Project) belonging to distantly related taxa; ancestral sequence V6-II seems to be homogenized in all rrn operons of the multigene family of strain ECOR35 producing effects of distortion in the molecular clock, similar to those that homoplasies could produce. V6 sequence-specific probes were applied to the 72 ECOR strains: half showed both V6-I and V6-II, and the rest had one or another. Only strain ECOR24 did not yield products in the PCR test and sequencing of 12 cloned 16S rRNA genes revealed a third form, V6-III, also found in the RDP. Concerted evolution by homogenization of the rRNA family may induce chronometric distortions responsible for a loss of ultrametricity in phylogenetic trees, particularly, of very closely related micro-organisms.
-
-
-
Polar lipids of four listeria species containing L-lysylcardiolipin, a novel lipid structure, and other unique phospholipids
More LessThe membrane lipids of Listeria innocua, Listeria monocytogenes, Listeria seeligeri and Listeria welshimeri were fractionated on DEAE-cellulose and purified by chromatography on silica gel and/or preparative TLC. The lipid structures were elucidated by chemical and chromatographic means. The polar lipid composition of the four listeria species was similar. Phospholipids predominated. They consisted of phosphatidylglycerol, l-lysylphosphatidylglycerol, cardiolipin [bis(phosphatidyl)glycerol] and l-lysylcardiolipin. A phospholipid more polar than cardiolipin, possibly two l-lysyl derivatives of it, sn-glycero-1-phosphoglycolipid, its d-alanyl derivative, and polyprenol phosphate were also detected. Towards the end of exponential growth, the relative amounts of cardiolipin and l-lysylcardiolipin increased, approaching 47–78% lipid phosphorus with a ratio of l-lysylcardiolipin to cardiolipin of 0·25–1·6. As shown by fast atom bombardment-mass spectrometry, cardiolipin and l-lysylcardiolipin consisted of five molecular species due to various fatty acid combinations. l-Lysylcardiolipin has so far not been found in nature. It belongs to the recently discovered class of substituted cardiolipins. Its occurrence in the four listeria species tested shows that it is a characteristic lipid component of the L. monocytogenes line of descent. Further studies on the lipid pattern of members of the other descent line are required to decide whether lysylcardiolipin can serve as a genus-specific chemotaxonomic marker for listeriae.
-
-
-
Phylogenetic diversity, polyamine pattern and DNA base composition of members of the order Planctomycetales
The 16S rDNA sequences of 20 novel isolates of members of the order Planctomycetales were compared to those of the type strains of described planctomycete species and 22 planctomycete isolates for which the 16S rDNA sequences had been previously determined. The novel isolates could be assigned to several phylogenetically broad groups, four of which are defined by the genera Gemmata, Isosphaera, Planctomyces and Pirellula. To evaluate polyamines as a chemotaxonomic marker within this order, the polyamine pool was determined for six planctomycete reference species and for 20 planctomycete isolates. All analysed members of the order Planctomycetales contained significant amounts of polyamines. sym-Homospermidine (HSPD) is present in all strains except Planctomyces limnophilus and related strains, which had high amounts of putrescine (PUT) as the dominant polyamine component. The distribution of PUT, HSPD and spermidine reflects the phylogenetic diversity within the Planctomycetales as closely related representatives of the phylogenetic groups defined by described species and novel isolates exhibit similar polyamine patterns. Determination of the DNA base composition revealed G+C contents of >60 mol% for members of Gemmata and Isosphaera whereas, except for two isolates, strains which are phylogenetically associated with Planctomyces and Pirellula had G+C contents of 51-57 mol%.
-
-
-
NOTE
More LessThe nucleotide sequences of the 16S rRNA gene (rDNA) in 38 taxa of the genus Staphylococcus were compared phylogenetically. Based on phylogenetic tree analysis, staphylococcal species were divided into 12 cluster groups. These cluster groups were in very good agreement with species groups determined by DNA–DNA reassociation studies. These genealogical classifications were consistent with the results of the production of coagulase or oxidase and with resistance to novobiocin. These suggest that the phylogenetic relationship of the genus Staphylococcus is accurately represented by the results obtained from the sequence analysis of 16S rDNA.
-
- Methods
-
-
-
Rapid identification of hyperthermophilic methanococci isolated from deep-sea hydrothermal vents
More Less16S rDNAs amplified by PCR from 22 hyperthermophilic methanococci isolated from deep-sea hydrothermal vents were compared with those of the six type strains of the genus Methanococcus by RFLP analysis. Restriction fragments obtained with Haelll enabled four of the type species to be distinguished. Restrictions with HhaI, BstUI and MspI were necessary to differentiate Methanococcus jannaschii and Methanococcus fervens. The results indicate that the 16S rDNA PCR-RFLP method provides a rapid and reliable tool for the identification of newly isolated hyperthermophilic Methanococcus spp.
-
-
-
-
Identification of nine species of the Chlamydiaceae using PCR-RFLP
More LessThe family Chlamydiaceae contains two genera and nine species. Rapid and easy identification of these species is essential for taxonomic, epidemiological and clinical determinations. Currently, DNA sequence analysis is the only accepted method that decisively distinguishes all nine species. In this study, a simple and rapid PCR-RFLP procedure was developed by which laboratory-cultured chlamydial specimens could be identified. To accomplish this, conserved oligonucleotide primers and restriction sites were deduced from 16S and 23S rRNA sequence data from >50 chlamydial strains representing all nine species. DNA from 25 previously characterized chlamydial strains were tested with these primers and restriction enzymes. All nine chlamydial species were reliably distinguished in the tests. The procedure was optimized by adjusting the annealing temperature using both a standard and a heat-activated DNA polymerase to reduce mismatch PCR amplification of mycoplasmas and other bacteria. The result was that a PCR method for species identification of chlamydial isolates and for distinguishing mycoplasmas and chlamydiae was created. This method can be used to rapidly identify known species of the family Chlamydiaceae.
-
-
-
AFLP fingerprinting for analysis of yeast genetic variation
More LessAmplified fragment length polymorphism (AFLP) was used to investigate genetic variation in commercial strains, type strains and winery isolates from number of yeast species. AFLP was shown to be effective in discriminating closely related strains. Furthermore, sufficient similarity in the fingerprints produced by yeasts of a given species allowed classification of unknown isolates. The applicability of the method for determining genome similarities between yeasts was investigated by performing cluster analysis on the AFLP data. Results from two species, Saccharomyces cerevisiae and Dekkera bruxellensis, illustrate that AFLP is useful for the study of intraspecific genetic relatedness. The value of the technique in strain differentiation, species identification and the analysis of genetic similarity demonstrates the potential of AFLP in yeast ecology and evolutionary studies.
-
- International Committee On Systematic Bacteriology
-
-
-
Recommended minimal standards for description of new staphylococcal species
More LessIn accordance with Recommendation 30b of the International Code of Nomenclature of Bacteria, minimal standards are proposed for the genus Staphylococcus and the description of newly recognized species in this genus. Assignment of a strain to the genus Staphylococcus requires that it is a Gram-positive coccus that forms clusters, produces catalase, has an appropriate cell wall structure (including peptidoglycan type and teichoic acid presence) and G+C content of DNA in a range of 30–40 mol%. The recommended minimal standards for describing a new Staphylococcus species are based on the results of phenotypic and genomic studies of at least five independently isolated strains. They include colony morphology and the results of the following conventional tests: pigment production, growth requirements, fermentative and oxidative activity on carbohydrates, novobiocin susceptibility, enzymic activities (nitrate reductase, alkaline phosphatase, arginine dihydrolase, ornithine decarboxylase, urease, cytochrome oxidase, staphylocoagulase in rabbit plasma, heat-stable nuclease, amidases, oxidases, clumping factor, and haemolytic activity on sheep or bovine blood agar). DNA–DNA hybridization experiments may distinguish species when the difference between the binding in the homologous reaction and the binding in the heterologous reaction expressed as a percentage is less than 70%. In addition, rRNA signature sequence criteria, ribotyping characterization of the nomenclature type strain and other strains of the species, and reference strains of other species is recommended to describe the strains of the new species with sets of genetic attributes and reveal possible grouping errors. This proposal has been endorsed by the members of the Subcommittee on the taxonomy of staphylococci and streptococci of the International Committee on Systematic Bacteriology.
-
-
-
-
Revised Salmonella nomenclature: designation of Salmonella enterica (ex Kauffmann and Edwards 1952) Le Minor and Popoff 1987 sp. nov. nom. rev. as the neotype species of the genus Salmonella Lignieres 1900 (Approv Lists 1980), rejection of the name Salmonella choleraesuis (Smith 1894) Weldin 1927 (Approved Lists 1980), and conservation of the name Salmonella typhi (Schroeter 1886) Warren and Scott 1930 (Approved Lists 1980). Request for an Opinion
More LessThe Request for an Opinion by Le Minor and Popoff 1987, proposing designation of ‘Salmonella enterica’ (ex Kauffmann and Edwards 1952) Le Minor and Popoff 1987 as the type and only species of the genus Salmonella Lignieres 1900 (Approved Lists 1980), has not been positively decided upon by the Judicial Commission. However, many bacteriologists use the name ‘Salmonella enterica’. To avoid further confusion, it is requested to reject the name Salmonella choleraesuis (Smith 1894) Weldin 1927 (Approved Lists 1980), to recognize the species Salmonella enterica, to conserve the name Salmonella typhi (Schroeter 1886) Warren and Scott 1930 (Approved Lists 1980), and to emend the genus Salmonella with the establishment of a neotype species, Salmonella enterica.
-
-
-
Replacement of ATCC 21273, the current type strain of Streptomyces rameus Shibata 1959, with IFO 3782
More LessIt is proposed that the type strain of Streptomyces rameus Shibata 1959 is IFO 3782 (= No. 43797), which is the originally designated type strain, and not ATCC 21273 as given in the Approved Lists. The level of DNA relatedness between IFO 3782 and ATCC 21273 is 30%, indicating that they are different species.
-
- Errata
Volumes and issues
-
Volume 74 (2024)
-
Volume 73 (2023)
-
Volume 72 (2022 - 2023)
-
Volume 71 (2020 - 2021)
-
Volume 70 (2020)
-
Volume 69 (2019)
-
Volume 68 (2018)
-
Volume 67 (2017)
-
Volume 66 (2016)
-
Volume 65 (2015)
-
Volume 64 (2014)
-
Volume 63 (2013)
-
Volume 62 (2012)
-
Volume 61 (2011)
-
Volume 60 (2010)
-
Volume 59 (2009)
-
Volume 58 (2008)
-
Volume 57 (2007)
-
Volume 56 (2006)
-
Volume 55 (2005)
-
Volume 54 (2004)
-
Volume 53 (2003)
-
Volume 52 (2002)
-
Volume 51 (2001)
-
Volume 50 (2000)
-
Volume 49 (1999)
-
Volume 48 (1998)
-
Volume 47 (1997)
-
Volume 46 (1996)
-
Volume 45 (1995)
-
Volume 44 (1994)
-
Volume 43 (1993)
-
Volume 42 (1992)
-
Volume 41 (1991)
-
Volume 40 (1990)
-
Volume 39 (1989)
-
Volume 38 (1988)
-
Volume 37 (1987)
-
Volume 36 (1986)
-
Volume 35 (1985)
-
Volume 34 (1984)
-
Volume 33 (1983)
-
Volume 32 (1982)
-
Volume 31 (1981)
-
Volume 30 (1980)
-
Volume 29 (1979)
-
Volume 28 (1978)
-
Volume 27 (1977)
-
Volume 26 (1976)
-
Volume 25 (1975)
-
Volume 24 (1974)
-
Volume 23 (1973)
-
Volume 22 (1972)
-
Volume 21 (1971)
-
Volume 20 (1970)
-
Volume 19 (1969)
-
Volume 18 (1968)
-
Volume 17 (1967)
-
Volume 16 (1966)
-
Volume 15 (1965)
-
Volume 14 (1964)
-
Volume 13 (1963)
-
Volume 12 (1962)
-
Volume 11 (1961)
-
Volume 10 (1960)
-
Volume 9 (1959)
-
Volume 8 (1958)
-
Volume 7 (1957)
-
Volume 6 (1956)
-
Volume 5 (1955)
-
Volume 4 (1954)
-
Volume 3 (1953)
-
Volume 2 (1952)
-
Volume 1 (1951)