scholarly journals Reclassification of ‘Dactylosporangium variesporum’ as Saccharothrix variisporea corrig. (ex Tomita et al. 1977) sp. nov., nom. rev.

2011 ◽  
Vol 61 (2) ◽  
pp. 310-314 ◽  
Author(s):  
Byung-Yong Kim ◽  
Roselyn Brown ◽  
David P. Labeda ◽  
Michael Goodfellow

In the course of a polyphasic study it was observed that ‘Dactylosporangium variesporum’ NRRL B-16296 is misclassified in the genus Dactylosporangium as it exhibits properties consistent with its assignment to the genus Saccharothrix. Phylogenetic analyses based on 16S rRNA gene sequences show that the strain falls within the evolutionary radiation of the genus Saccharothrix, a result which is supported by corresponding chemotaxonomic and morphological markers. The strain is phylogenetically most closely, albeit loosely, related to Saccharothrix espanaensis, but can be readily distinguished from this and other species of the genus Saccharothrix with validly described names by using a range of phenotypic properties. The combined genotypic and phenotypic data demonstrate conclusively that this strain should be classified as a new species in the genus Saccharothrix for which the name Saccharothrix variisporea sp. nov. is proposed. The type strain is NRRL B-16296T (=ATCC 31203T =DSM 43911T =JCM 3273T =NBRC 14104T).

2007 ◽  
Vol 57 (7) ◽  
pp. 1625-1629 ◽  
Author(s):  
Kuan-Yin Lin ◽  
Shih-Yi Sheu ◽  
Poh-Shing Chang ◽  
Jang-Cheon Cho ◽  
Wen-Ming Chen

A short-rod-shaped, Gram-negative, non-motile bacterial strain, designated AZO-CT, was isolated from a sample of seawater collected from the Eluanbi coast of Pingtung County in southern Taiwan and was characterized by using a polyphasic approach. Phylogenetic analyses based on 16S rRNA gene sequences showed that the strain formed a monophyletic branch at the periphery of the evolutionary radiation occupied by the genus Oceanicola in the order Rhodobacterales of the Alphaproteobacteria. The closest neighbours were Oceanicola batsensis HTCC2597T (95.6 % similarity), Oceanicola nanhaiensis SS011B1-20T (94.5 %) and Oceanicola granulosus HTCC2516T (94.0 %). The predominant fatty acid was 18 : 1ω7c (49.1 %), and significant amounts of 19 : 0 cyclo (24.6 %) and 16 : 0 (14.7 %) were present. The DNA–DNA relatedness of the strain with respect to recognized species of the genus Oceanicola was less than 70 %. The isolate was also distinguishable from members of the genus Oceanicola on the basis of phenotypic and biochemical characteristics. It is evident from the genotypic, chemotaxonomic and phenotypic data, therefore, that strain AZO-CT represents a novel species of the genus Oceanicola, for which the name Oceanicola marinus sp. nov. is proposed. The type strain is AZO-CT (=LMG 23705T=BCRC 17591T).


2005 ◽  
Vol 55 (5) ◽  
pp. 1833-1837 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
So-Jung Kang ◽  
Soo-Young Lee ◽  
Mi-Hwa Lee ◽  
Tae-Kwang Oh

A Gram-variable, motile, endospore-forming, slightly halophilic bacterial strain, DSW-10T, was isolated from Dokdo, an island located at the edge of the East Sea, Korea, and was characterized taxonomically by using a polyphasic approach. This isolate grew optimally at 37 °C and in the presence of 4–5 % NaCl. Strain DSW-10T had cell-wall peptidoglycan based on meso-diaminopimelic acid, MK-7 as the predominant menaquinone, and anteiso-C15 : 0, iso-C15 : 0, anteiso-C17 : 0 and iso-C16 : 0 as major fatty acids. Major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and unidentified phospholipids. The DNA G+C content was 36·7 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain DSW-10T is phylogenetically affiliated to the genus Virgibacillus, and exhibited sequence similarity of 95·3–98·7 % to the type strains of Virgibacillus species. DNA–DNA relatedness levels between strain DSW-10T and the type strains of some phylogenetically related Virgibacillus species were in the range 8·4–17·5 %. On the basis of phenotypic properties and phylogenetic and genetic distinctiveness, strain DSW-10T (=KCTC 3933T=DSM 16826T) was classified as the type strain of a novel Virgibacillus species, for which the name Virgibacillus dokdonensis sp. nov. is proposed.


2006 ◽  
Vol 56 (10) ◽  
pp. 2297-2301 ◽  
Author(s):  
Geok Yuan Annie Tan ◽  
Stuart Robinson ◽  
Ernest Lacey ◽  
Michael Goodfellow

The taxonomic position of a group of mesophilic actinomycetes isolated from arid Australian soils was determined using a polyphasic approach. The organisms shared chemical and morphological markers typical of members of the genus Amycolatopsis. They had identical 16S rRNA gene sequences and formed a distinct phyletic line in the Amycolatopsis mediterranei clade, being most closely related to A. mediterranei. In addition, they shared a range of phenotypic properties that distinguished them from representatives of all of the species classified in this clade. The combined genotypic and phenotypic data indicate that the strains merit species status within the genus Amycolatopsis. The name proposed for the novel species is Amycolatopsis australiensis sp. nov.; the type strain is GY048T (=DSM 44671T=NCIMB 14142T).


2004 ◽  
Vol 54 (1) ◽  
pp. 191-194 ◽  
Author(s):  
James E. M. Stach ◽  
Luis A. Maldonado ◽  
Alan C. Ward ◽  
Alan T. Bull ◽  
Michael Goodfellow

The taxonomic position of a marine actinomycete, strain SJS0289/JS1T, was determined using a polyphasic taxonomic approach. The organism, which had phenotypic properties consistent with its classification in the genus Williamsia, formed a distinct clade in the 16S rRNA gene tree together with the type strain of Williamsia muralis, but was readily distinguished from this species using DNA–DNA relatedness and phenotypic data. The genotypic and phenotypic data show that the organism merits recognition as a new species of Williamsia. The name proposed for the new species is Williamsia maris; the type strain is SJS0289/JS1T (=DSM 44693T=JCM 12070T=KCTC 9945T=NCIMB 13945T).


2010 ◽  
Vol 60 (8) ◽  
pp. 1813-1823 ◽  
Author(s):  
Byung-Yong Kim ◽  
James E. M. Stach ◽  
Hang-Yeon Weon ◽  
Soon-Wo Kwon ◽  
Michael Goodfellow

Forty strains isolated from soil taken from a hay meadow were assigned to the genus Dactylosporangium on the basis of colonial properties. 16S rRNA gene sequence analysis showed that the isolates formed a group that was most closely related to the type strain of Dactylosporangium aurantiacum, but well separated from other Dactylosporangium type strains and from ‘Dactylosporangium salmoneum’ NRRL B-16294. Twelve of 13 representative isolates had identical 16S rRNA gene sequences and formed a subclade that was distinct from corresponding phyletic lines composed of the remaining isolate, strain BK63T, the ‘D. salmoneum’ strain and the type strains of recognized Dactylosporangium species. DNA–DNA relatedness data indicated that representatives of the multi-membered 16S rRNA gene subclade, isolate BK63T and the ‘D. salmoneum’ subclade formed distinct genomic species; all of these organisms had chemotaxonomic and morphological properties consistent with their classification in the genus Dactylosporangium. They were also distinguished from one another and from the type strains of recognized Dactylosporangium species based on a range of phenotypic properties. Combined genotypic and phenotypic data showed that isolate BK63T, isolates BK51T, BK53 and BK69, and strain NRRL B-16294T should be classified in the genus Dactylosporangium as representing novel species. The names proposed for these species are Dactylosporangium luridum sp. nov. (type strain BK63T  = DSM 45324T  = KACC 20933T  = NRRL B-24775T), Dactylosporangium luteum sp. nov. (type strain BK51T  = DSM 45323T  = KACC 20899T  = NRRL B-24774T) and Dactylosporangium salmoneum sp. nov., nom. rev. (type strain NRRL B-16294T  = ATCC 31222T  = DSM 43910T  = JCM 3272T  = NBRC 14103T).


2007 ◽  
Vol 57 (4) ◽  
pp. 832-836 ◽  
Author(s):  
Jianli Zhang ◽  
Qiong Xie ◽  
Zhiheng Liu ◽  
Michael Goodfellow

The taxonomic position of a soil isolate, strain Z6T, was established using a polyphasic approach. The organism showed a range of chemical and morphological properties consistent with its classification in the genus Lechevalieria. An almost complete 16S rRNA gene sequence determined for the strain was aligned with corresponding sequences of representatives of the genus Lechevalieria and related taxa using three tree-making algorithms. The organism formed a distinct phyletic line within the evolutionary radiation occupied by the genus Lechevalieria and was more closely related to the type strain of Lechevalieria aerocolonigenes than to that of Lechevalieria flava. Strain Z6T could be distinguished from both these strains using DNA–DNA relatedness data and by a combination of phenotypic properties. The combined genotypic and phenotypic data show that strain Z6T should be assigned to the genus Lechevalieria as a representative of a novel species. The name proposed for this new taxon is Lechevalieria fradiae sp. nov. The type strain is Z6T (=CGMCC 4.3506T=JCM 14205T).


Author(s):  
Karine Alain ◽  
Erwann Vince ◽  
Damien Courtine ◽  
Lois Maignien ◽  
Xiang Zeng ◽  
...  

A novel extreme thermophilic and piezophilic chemoorganoheterotrophic archaeon, strain EXT12cT, was isolated from a hydrothermal chimney sample collected at a depth of 2496 m at the East Pacific Rise 9° N. Cells were strictly anaerobic, motile cocci. The strain grew at NaCl concentrations ranging from 1 to 5 % (w/v; optimum, 2.0%), from pH 6.0 to 7.5 (optimum, pH 6.5–7.0), at temperatures between 60 and 95 °C (optimum, 80–85 °C), and at pressures from 0.1 to at least 50 MPa (optimum, 30 MPa). Strain EXT12cT grew chemoorganoheterotrophically on complex proteinaceous substrates. Its growth was highly stimulated by the presence of elemental sulphur or l-cystine, which were reduced to hydrogen sulfide. The DNA G+C content was 54.58 mol%. Phylogenetic analyses based on 16S rRNA gene sequences and concatenated ribosomal protein sequences showed that strain EXT12cT falls into the genus Thermococcus and is most closely related to Thermococcus nautili strain 30-1T. Overall genome relatedness index analyses (average nucleotide identity scores and in silico DNA–DNA hybridizations) showed a sufficient genomic distance between the new genome and the ones of the Thermococcus type strains for the delineation of a new species. On the basis of genotypic and phenotypic data, strain EXT12cT is considered to represent a novel species, for which the name Thermococcus henrietii sp. nov. is proposed, with the type strain EXT12cT (=UBOCC M-2417T=DSM 111004T).


ZooKeys ◽  
2020 ◽  
Vol 929 ◽  
pp. 93-115
Author(s):  
Yinmeng Hou ◽  
Shengchao Shi ◽  
Daming Hu ◽  
Yue Deng ◽  
Jianping Jiang ◽  
...  

The toad genus Oreolalax is widely distributed in southwest China and northern Vietnam. A new species of the genus is described from Sichuan Province, China. Phylogenetic analyses based on the mitochondrial 12S rRNA and 16S rRNA gene sequences supported the new species as an independent clade clustered into the clade also containing O. nanjiangensis and O. chuanbeiensis. The new species can be distinguished from its congeners by a combination of the following characters: body size moderate (SVL 51.2–64.2 mm in males); head broad; tympanum hidden; interorbital region with dark triangular pattern; belly with marbling; male lacking spines on lip margin; spiny patches on chest small with thick sparse spines in male; nuptial spines thick and sparse; tibio-tarsal articulation reaching beyond nostril when leg stretched forward; toe webbing at base.


2015 ◽  
Vol 65 (Pt_7) ◽  
pp. 2199-2203 ◽  
Author(s):  
Xiaowei Zheng ◽  
Hongcan Liu ◽  
Lei Song ◽  
Limin Zhang ◽  
Haina Wang ◽  
...  

Strain G18T, a Gram-stain-negative, aerobic, rod-shaped, motile, non-fermentative, yellow-pigmented bacterium, was isolated from Red Sea sediment. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain G18T was most closely related to Phaeocystidibacter luteus PG2S01T with 95.3 % similarity. Growth of strain G18T occurred at 10–42 °C (optimum 28–37 °C), pH 5.0–9.0 (optimum pH 6.0–8.0) and in the presence of 0.5–10 % NaCl (optimum 2–5 %). The major fatty acids of strain G18T were iso-C15 : 0, summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c), iso-C15 : 1 G and iso-C17 : 0 3-OH. The major polar lipids were phosphatidylethanolamine, unidentified aminolipids, phospholipids and other lipids. The predominant quinone was menaquinone 6 (MK-6). The G+C content of the genomic DNA from strain G18T was 39.0 mol%. Based on the phylogenetic and phenotypic properties, strain G18T represents a novel species of the genus Phaeocystidibacter, for which the name Phaeocystidibacter marisrubri sp. nov. is proposed. The type strain is G18T ( = CGMCC 1.14954T = JCM 30614T).


2004 ◽  
Vol 54 (6) ◽  
pp. 2301-2305 ◽  
Author(s):  
Jianli Zhang ◽  
Zhiheng Liu ◽  
Michael Goodfellow

The taxonomic position of a soil isolate, strain 276T, was established using a polyphasic approach. The organism showed a range of chemical and morphological properties consistent with its classification in the genus Nocardia. An almost complete 16S rRNA gene sequence determined for the strain was aligned with corresponding sequences of representatives of the genus Nocardia and related taxa using three tree-making algorithms. The organism formed a distinct phyletic line within the evolutionary radiation occupied by the genus Nocardia and was most closely related to the type strain of Nocardia abscessus. However, the two strains shared a low DNA–DNA relatedness value and were readily distinguished using a combination of phenotypic properties. The combined genotypic and phenotypic data show that strain 276T should be assigned to the genus Nocardia as a novel species. The name proposed for this new taxon is Nocardia xishanensis sp. nov. The type strain is 276T (=CGMCC 4.1860T=JCM 12160T).


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