scholarly journals Pontibacter xinjiangensis sp. nov., in the phylum ‘Bacteroidetes’, and reclassification of [Effluviibacter] roseus as Pontibacter roseus comb. nov.

Author(s):  
Yang Wang ◽  
Kundi Zhang ◽  
Feng Cai ◽  
Lei Zhang ◽  
Yali Tang ◽  
...  

A novel strain, designated 311-10T, isolated from soil of Xinjiang, China, was characterized by using a polyphasic taxonomic approach. The isolate was Gram-negative, aerobic, rod-shaped, non-motile, oxidase-negative and catalase-positive. The predominant menaquinone of strain 311-10T was MK-7 and the genomic DNA G+C content was 47.8 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the isolate formed a cluster with the genera Pontibacter and [Effluviibacter] in the phylum ‘Bacteroidetes’, with sequence similarities of 93.9–95.6 %. Phylogenetic evidence and the results of phenotypic, genotypic and chemotaxonomic analyses support the reclassification of [Effluviibacter] roseus as Pontibacter roseus comb. nov. (type strain, SRC-1T=MTCC 7260T=DSM 17521T) and the establishment of a novel species, Pontibacter xinjiangensis sp. nov., with strain 311-10T (=CCTCC AB 207200T=NRRL B-51335T) as the type strain.

2007 ◽  
Vol 57 (9) ◽  
pp. 2079-2083 ◽  
Author(s):  
Keun Sik Baik ◽  
Yoon-Dong Park ◽  
Mi Sun Kim ◽  
Seong Chan Park ◽  
Eun Young Moon ◽  
...  

A motile, rod-shaped bacterium, designated strain WPCB189T, was isolated from fresh water collected from the Woopo wetland (Republic of Korea). The cells were found to be Gram-negative, aerobic and catalase- and oxidase-positive. A phylogenetic analysis based on 16S rRNA gene sequences showed that this isolate forms a lineage within the genus Pedobacter, showing sequence similarities of 89.7–96.4 % with respect to recognized species of the genus, and represents a novel member of this genus. The major fatty acids were iso-C15 : 0 2-OH and/or C16 : 1 ω7c (summed feature 3, 29.7 %), iso-C15 : 0 (26.4 %) and iso-C17 : 1 3-OH (10.1 %). The DNA G+C content was 38.0 mol%. On the basis of data obtained from this polyphasic taxonomic study, strain WPCB189T represents a novel species of the genus Pedobacter, for which the name Pedobacter koreensis sp. nov. is proposed. The type strain is WPCB189T (=KCTC 12536T=NBRC 101153T).


2007 ◽  
Vol 57 (7) ◽  
pp. 1539-1542 ◽  
Author(s):  
Hang-Yeon Weon ◽  
Byung-Yong Kim ◽  
Seung-Beom Hong ◽  
Jae-Ho Joa ◽  
Sang-Sik Nam ◽  
...  

A light-pink-coloured bacterium, designated strain 5416T-32T, was isolated from an air sample in Korea. Cells of the strain were strictly aerobic, Gram-negative, motile (single polar or subpolar flagellum) and rod-shaped. Optimal growth occurred at 25–30 °C and at pH 6.0–7.0. The major quinones were Q-10 and Q-8. The major fatty acids were C18 : 1 ω7c (53.8 %) and C16 : 0 (15.9 %). The G+C content of the genomic DNA was 65.0 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain 5416T-32T was most closely related to Skermanella parooensis, with a similarity of 96.2 %, but relatively low sequence similarities (<92 %) were found with respect to other species with validly published names held in GenBank. Phenotypic and genotypic analyses indicated that strain 5416T-32T could not be assigned to any recognized species. Therefore strain 5416T-32T represents a novel species of the genus Skermanella, for which the name Skermanella aerolata sp. nov. is proposed. The type strain is 5416T-32T (=KACC 11604T=DSM 18479T).


2007 ◽  
Vol 57 (3) ◽  
pp. 566-571 ◽  
Author(s):  
Zubair Aslam ◽  
Chang Soo Lee ◽  
Kyoung-Ho Kim ◽  
Wan-Taek Im ◽  
Leonid N. Ten ◽  
...  

A novel facultatively methylotrophic, Gram-negative, rod-shaped bacterium, designated strain S2R03-9T, was isolated from jeotgal, a traditional Korean fermented seafood. The organism was strictly aerobic, motile by means of a single polar flagellum, non-sporulating and catalase- and oxidase-positive. Strain S2R03-9T grew in the presence of 0–1 % (w/v) NaCl and at pH 6.0–10.0, with optimum growth in the absence of NaCl and at pH 7.0. It grew at temperatures in the range 20.0–30.0 °C, with optimum growth at 30 °C. Colonies grown on R2A medium were non-pigmented, opaque and creamy white. Phylogenetic analysis based on 16S rRNA gene sequences indicated that it was most closely related to Methylobacterium organophilum JCM 2833T (96.6 % similarity) and the phylogenetic similarities to all other Methylobacterium species with validly published names were less than 95.0 %. The DNA G+C content was 64.9 mol%. The phylogenetic analysis, the phenotypic assessment and the chemotaxonomic data (major ubiquinone, Q-10; major fatty acids, C18 : 1 and C18 : 0) showed that S2R03-9T represents a novel species within the genus Methylobacterium in the class Alphaproteobacteria, for which the name Methylobacterium jeotgali sp. nov. is proposed. The type strain is S2R03-9T (=KCTC 12671T=LMG 23639T).


2010 ◽  
Vol 60 (12) ◽  
pp. 2882-2886 ◽  
Author(s):  
Jun Zhang ◽  
Rui-Bo Jiang ◽  
Xiao-Xia Zhang ◽  
Bao-Jian Hang ◽  
Jian He ◽  
...  

A Gram-negative, non-spore-forming, yellow-pigmented bacterium, strain LQY-7T, was isolated from activated sludge treating synthetic pyrethroid-manufacturing wastewater. The taxonomic status of the strain was determined using a polyphasic taxonomic approach. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain LQY-7T was a member of the genus Flavobacterium but had low similarities with other species of this genus (95.0 % similarity with Flavobacterium indicum GPTSA100-9T and <94 % similarities with other Flavobacterium species). On the basis of phenotypic, genetic and phylogenetic data, strain LQY-7T should be classified as a representative of a novel species of the genus Flavobacterium, for which the name Flavobacterium haoranii sp. nov. is proposed; the type strain is LQY-7T (=ACCC 05409T =KCTC 23008T).


2011 ◽  
Vol 61 (7) ◽  
pp. 1554-1560 ◽  
Author(s):  
Yang Wang ◽  
Feng Cai ◽  
Yali Tang ◽  
Jun Dai ◽  
Huan Qi ◽  
...  

A novel strain, designated HY-50RT, isolated from soil of a Euphrates poplar (Populus euphratica) forest in Xinjiang, China, was characterized using a polyphasic taxonomic approach. Cells of the isolate were Gram-reaction-negative, strictly aerobic, rod-shaped, non-motile, oxidase-negative and catalase-positive. Phylogenetic analysis based on 16S rRNA gene sequences showed that the isolate was a member of the phylum Bacteroidetes, its closest relatives being Niastella populi THYL-44T (93.6 % similarity), Flavisolibacter ginsengisoli Gsoil 643T (93.5 %), Terrimonas ferruginea IAM 15098T (93.3 %) and Flavisolibacter ginsengiterrae Gsoil 492T (93.2 %). The major fatty acids were iso-C15 : 1 G (11.7 %), iso-C15 : 0 (19.6 %) and iso-C17 : 0 3-OH (19.3 %). The predominant menaquinone of strain HY-50RT was MK-7 and the genomic DNA G+C content was 46.8 mol%. Flexirubin-type pigments were not produced. Based on phylogenetic evidence and the results of phenotypic, genotypic and chemotaxonomic analysis, strain HY-50RT represents a novel species of a novel genus, for which the name Flavitalea populi gen. nov., sp. nov. is proposed. The type strain is HY-50RT ( = CCTCC AB 208255T  = NRRL B-59222T).


2010 ◽  
Vol 60 (7) ◽  
pp. 1678-1681 ◽  
Author(s):  
Guido Funke ◽  
Ralf Englert ◽  
Reinhard Frodl ◽  
Kathryn A. Bernard ◽  
Steffen Stenger

A coryneform bacterium (strain 1094T) was isolated from a wound swab taken from an 89-year-old female patient. Chemotaxonomic investigations suggested that this bacterium was related to the genera Actinomyces, Arcanobacterium and Actinobaculum. Phylogenetic analysis of 16S rRNA gene sequences showed that strain 1094T was most closely related to Actinomyces europaeus CCUG 32789 AT (94.3 % similarity). Phenotypically, the isolate could be separated from its closest phylogenetic neighbours on the basis of being positive for catalase, CAMP reaction, acid phosphatase, N-acetyl-β-glucosaminidase and raffinose fermentation. Based on the data presented, it is proposed that strain 1094T should be classified in a novel species, Actinomyces hominis sp. nov. The type strain is 1094T (=CCUG 57540T =DSM 22168T).


2010 ◽  
Vol 60 (4) ◽  
pp. 953-957 ◽  
Author(s):  
Qiang Zheng ◽  
Chuang Chen ◽  
Xiao-Jun Yan ◽  
Ya-Nan Wang ◽  
Yong-Hui Zeng ◽  
...  

A Gram-negative, non-motile, rod-shaped bacterial strain, JLT354-WT, that accumulates poly-β-hydroxybutyrate granules was isolated from the South China Sea. Phylogenetic analysis based on 16S rRNA gene sequences showed that the strain was related to members of the genera Antarctobacter, Sagittula, Oceanicola and Loktanella; levels of similarity between strain JLT354-WT and members of the above genera were less than 92.0 %. The predominant fatty acid of strain JLT354-WT was C18 : 1 ω7c (83.1 %); significant amounts of C18 : 0 (7.9 %) and C12 : 1 3-OH (3.7 %) were also present. The predominant respiratory ubiquinone was Q-10. The DNA G+C content of strain JLT354-WT was 63.7 mol%. The isolate was distinguishable from members of the order Rhodobacterales based on phenotypic and biochemical characteristics. On the basis of the taxonomic data presented, strain JLT354-WT is considered to represent a novel species of a new genus, for which the name Mameliella alba gen. nov., sp. nov. is proposed. The type strain of Mameliella alba is JLT354-WT (=LMG 24665T=CGMCC 1.7290T).


2011 ◽  
Vol 61 (7) ◽  
pp. 1606-1611 ◽  
Author(s):  
Enrico Tortoli ◽  
Erik C. Böttger ◽  
Anna Fabio ◽  
Enevold Falsen ◽  
Zoe Gitti ◽  
...  

Four strains isolated in the last 15 years were revealed to be identical in their 16S rRNA gene sequences to MCRO19, the sequence of which was deposited in GenBank in 1995. In a polyphasic analysis including phenotypic and genotypic features, the five strains (including MCRO19), which had been isolated in four European countries, turned out to represent a unique taxonomic entity. They are scotochromogenic slow growers and are genetically related to the group that included Mycobacterium simiae and 15 other species. The novel species Mycobacterium europaeum sp. nov. is proposed to accommodate these five strains. Strain FI-95228T ( = DSM 45397T  = CCUG 58464T) was chosen as the type strain. In addition, a thorough revision of the phenotypic and genotypic characters of the species related to M. simiae was conducted which leads us to suggest the denomination of the ‘Mycobacterium simiae complex’ for this group.


2006 ◽  
Vol 56 (9) ◽  
pp. 2147-2152 ◽  
Author(s):  
Om Prakash ◽  
Rup Lal

A phenanthrene-degrading bacterium, strain TKPT, was isolated from a fly ash dumping site of the thermal power plant in Panki, Kanpur, India, by an enrichment culture method using phenanthrene as the sole source of carbon and energy. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the strain belonged to the genus Sphingobium, as it showed highest sequence similarity to Sphingobium herbicidovorans DSM 11019T (97.3 %) and Sphingomonas cloacae JCM 10874T (96.5 %), compared with only 91–93 % similarity to members of other genera such as Sphingomonas sensu stricto, Novosphingobium, Sphingopyxis and Sphingosinicella. In DNA–DNA hybridization experiments with strains that were closely related phylogenetically and in terms of 16S rRNA gene sequences, i.e. Sphingobium herbicidovorans DSM 11019T and Sphingomonas cloacae JCM 10874T, strain TKPT showed less than 70 % relatedness. Strain TKPT contained sphingoglycolipids SGL-1 and SGL-2 and 18 : 1ω7c as the predominant fatty acid, with 16 : 0 as a minor component and 14 : 0 2-OH as the major 2-hydroxy fatty acid. Thus, phylogenetic analysis, DNA–DNA hybridization, fatty acid and polar lipid profiles and differences in physiological and morphological features from the most closely related members of the Sphingobium group showed that strain TKPT represents a distinct species of Sphingobium. The name Sphingobium fuliginis sp. nov. is proposed, with the type strain TKPT (=MTCC 7295T=CCM 7327T). Sphingomonas cloacae JCM 10874T formed a coherent cluster with members of Sphingobium, did not reduce nitrate to nitrite and had a fatty acid profile similar to those of Sphingobium species; hence Sphingomonas cloacae should be transferred to the genus Sphingobium as Sphingobium cloacae comb. nov., with the type strain JCM 10874T (=DSM 14926T).


2011 ◽  
Vol 61 (5) ◽  
pp. 1201-1205 ◽  
Author(s):  
Jun Dai ◽  
Fan Jiang ◽  
Yang Wang ◽  
Bo Yu ◽  
Huan Qi ◽  
...  

Strain 15-4T, a Gram-stain-negative, rod-shaped, non-motile bacterial strain that produced flexirubin-type pigments, was isolated from Tibet Province, China, and characterized by using a polyphasic taxonomic approach. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the isolate belonged to the family Chitinophagaceae, phylum ‘Bacteroidetes’, and was related to members of the genus Niabella, with sequence similarities ranging from 94.1 to 96.4 %. Strain 15-4T contained MK-7 as the predominant menaquinone and its DNA G+C content was 46.9 mol%. The major fatty acids of strain 15-4T were iso-C15 : 0 (41.3 %), iso-C15 : 1 G (14.9 %), iso-C17 : 0 3-OH (13.2 %) and summed feature 3 (comprising C16 : 1ω7c and/or iso-C15 : 0 2-OH, 16.0 %). These chemotaxonomic data supported the affiliation of strain 15-4T to the genus Niabella. However, a number of physiological and biochemical features enabled the isolate to be differentiated phenotypically from recognized species of the genus Niabella. On the basis of the evidence presented, it is proposed that strain 15-4T represents a novel species, Niabella tibetensis sp. nov.; the type strain is 15-4T ( = CCTCC AB 209167T = NRRL B-59394T). On the basis of these data, an emended description of the genus Niabella is also proposed.


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