scholarly journals Pontibacter populi sp. nov., isolated from the soil of a Euphrates poplar (Populus euphratica) forest

2012 ◽  
Vol 62 (Pt_3) ◽  
pp. 665-670 ◽  
Author(s):  
Mengbo Xu ◽  
Yang Wang ◽  
Jun Dai ◽  
Fan Jiang ◽  
Erkin Rahman ◽  
...  

A Gram-negative-staining, rod-shaped, non-motile and pink bacterial strain was isolated from the soil of a Populus euphratica forest located in Xinjiang, China. The strain, designated strain HYL7-15T, was subjected to a taxonomic analysis using a polyphasic approach. 16S rRNA gene sequence analyses indicated that the isolate belonged to the phylum Bacteroidetes and was related to the genus Pontibacter, with sequence similarities ranging from 93.1 to 95.0 % with other species of the genus Pontibacter. Strain HYL7-15T contained MK-7 as the predominant menaquinone and its DNA G+C content was 44.9 mol%. The major cellular fatty acids of the novel strain were iso-C15 : 0 (16.49 %), iso-C17 : 0 3-OH (10.96 %) and summed feature 4 (comprising anteiso-C17 : 1 B and/or iso-C17 : 1 I, 18.46 %). The major polar lipids were phosphatidylethanolamine (PE) and phosphatidylglycerol (PG); diphosphatidylglycerol (DPG), three unknown aminophospholipids (APLs) and two unknown phospholipids (PLs) were also detected. On the basis of the evidence presented, it is concluded that strain HYL7-15T represents a novel species of the genus Pontibacter, for which the name Pontibacter populi sp. nov. is proposed. The type strain is HYL7-15T ( = CCTCC AB 206239T = NRRL B-59488T).

2011 ◽  
Vol 61 (2) ◽  
pp. 438-442 ◽  
Author(s):  
Benjamin D. Moser ◽  
Hans-Peter Klenk ◽  
Peter Schumann ◽  
Gabriele Pötter ◽  
Brent A. Lasker ◽  
...  

Members of the genus Nocardia are responsible for cutaneous, pulmonary and disseminated human infections. From 2003 to 2008, four nocardioform strains (W8027, W8681, W9071 and W9241T) were isolated from patients in the state of Florida, USA. Ribosomal gene sequencing analysis suggested that a novel species of the genus Nocardia had been isolated. These strains were subjected to a taxonomic analysis using a polyphasic approach. Phenotypic analyses included morphological examination, biochemical profiling and antimicrobial susceptibility testing. Molecular studies included 16S rRNA and DNA gyrase B subunit (gyrB) gene sequence analyses and DNA–DNA hybridization. Phylogenetic neighbours were determined through 16S rRNA and gyrB gene sequence analyses. Phenotypic characteristics that differentiated the novel isolates from phylogenetically related species were growth at 45 °C, and three of the four novel strains utilized l-rhamnose. The antimicrobial profiles could not reliably distinguish the novel species from related nocardiae. Analysis showed that the 16S rRNA gene sequences of the four novel isolates were identical. The blast analysis of the near full-length 16S rRNA gene showed 99.2 % sequence similarity to Nocardia araoensis DSM 44729T, Nocardia arthritidis DSM 44731T and Nocardia beijingensis JCM 10666T, 98.7 % to Nocardia amamiensis DSM 45066T, 98.2 % to Nocardia pneumoniae JCM 12119T and 97.8 % to Nocardia takedensis JCM 13313T. Analysis of partial gyrB gene sequences showed that the novel isolates had 95.4 % similarity to N. arthritidis DSM 44731T, 95.3 % to Nocardia gamkensis DSM 44956T, 94.4 % to N. pneumoniae JCM 12119T, 93.8 % to Nocardia asiatica DSM 44668T, 93.5 % to N. amamiensis DSM 45066T, 93.4 % to N. beijingensis JCM 10666T and 93.2 % to N. araoensis DSM 44729T. The DNA–DNA relatedness values between the four novel strains were 86–89 %; the relatedness value for strain W9241T compared with N. beijingensis JCM 10666T was 47 % and 46 % with N. araoensis DSM 44729T, 44 % with N. arthritidis DSM 44731T, 32 % with N. amamiensis DSM 45066T and 20 % with N. asiatica DSM 44668T. The results of the taxonomic analysis suggested that the new isolates represent a novel species of the genus Nocardia for which the name Nocardia niwae sp. nov. is proposed. The type strain is W9241T (=DSM 45340T=CCUG 57756T).


2007 ◽  
Vol 57 (9) ◽  
pp. 1988-1994 ◽  
Author(s):  
Olga I. Nedashkovskaya ◽  
Seung Bum Kim ◽  
Kae Kyoung Kwon ◽  
Dong Sung Shin ◽  
Xuseong Luo ◽  
...  

A taxonomic study of a novel marine, heterotrophic, non-gliding, halotolerant and light-pink-pigmented bacterium was carried out using a polyphasic approach. 16S rRNA gene sequence analysis revealed that strain KMM 6241T is a member of the phylum Bacteroidetes. Strain KMM 6241T formed a cluster with the genera Algoriphagus, Chimaereicella and Hongiella with sequence similarities of 94.0–98.2 %. Hongiella ornithinivorans was the closest relative of the novel isolate. Comparative analysis of phenotypic, chemotaxonomic and genotypic characteristics of strain KMM 6241T and representatives of the genera Algoriphagus, Chimaereicella and Hongiella revealed many similar features. Consequently, phylogenetic evidence supported by phenotypic and genotypic similarities support the transfer of members of the genera Chimaereicella and Hongiella to the genus Algoriphagus and the establishment of a novel species, Algoriphagus vanfongensis sp. nov., with strain KMM 6241T (=DSM 17529T=KCTC 12716T) as the type strain.


2014 ◽  
Vol 64 (Pt_2) ◽  
pp. 675-679 ◽  
Author(s):  
Tao Zhang ◽  
Yu-Qin Zhang ◽  
Hong-Yu Liu ◽  
Jing Su ◽  
Li-Xun Zhao ◽  
...  

Two yeast strains isolated from the moss Chorisodontium aciphyllum from the Fildes Region, King George Island, maritime Antarctica, were classified as members of the genus Cryptococcus based on sequence analyses of the D1/D2 domains of the large subunit rRNA gene and the internal transcribed spacer (ITS) regions. The rRNA gene sequence analyses indicated that the two strains represented a novel species of the genus Cryptococcus, for which the name Cryptococcus fildesensis sp. nov. is proposed (type strain: CPCC 300017T = DSM 26442T = CBS 12705T). The MycoBank number of the novel species is MB 805542.


2007 ◽  
Vol 57 (1) ◽  
pp. 122-125 ◽  
Author(s):  
Seung-Hee Yoo ◽  
Byung-Yong Kim ◽  
Hang-Yeon Weon ◽  
Soon-Wo Kwon ◽  
Seung-Joo Go ◽  
...  

A polyphasic study was carried out to clarify the taxonomic position of a Gram-negative bacterium isolated from soil cultivated with Korean ginseng in the Eumseong region of Korea. The novel strain, GP25-8T, grew optimally at pH 6–7, 28 °C and 0–1 % NaCl (w/v). The major fatty acids were C18 : 1 ω7c, summed feature 3 (C16 : 1 ω7c/C15 : 0 iso 2-OH) and C16 : 0 (together representing 71.2 % of the total). The 16S rRNA gene sequence similarities between strain GP25-8T and members of the genus Burkholderia ranged from 94.7 to 97.4 %, indicating that this novel strain was phylogenetically related to members of that genus. The novel strain showed the highest sequence similarities to Burkholderia caryophylli ATCC 25418T (97.4 %) and Burkholderia phenazinium LMG 2247T (97.2 %); the levels of DNA–DNA hybridization with these strains were 28 and 12 %, respectively. These results support the conclusion that strain GP25-8T represents a novel species within the genus Burkholderia, for which the name Burkholderia soli sp. nov. is proposed. The type strain is GP25-8T (=KACC 11589T=DSM 18235T).


2007 ◽  
Vol 57 (5) ◽  
pp. 1148-1153 ◽  
Author(s):  
Shih-Yi Sheu ◽  
Kuan-Yin Lin ◽  
Jui-Hsing Chou ◽  
Poh-Shing Chang ◽  
A. B. Arun ◽  
...  

A yellow-coloured, aerobic, Gram-negative, rod-shaped bacterial strain, designated B-IT, was isolated from the water of a shrimp (Litopenaeus vannamei) mariculture pond in Taiwan. No species with a validly published name showed 16S rRNA gene sequence similarity of more than 96.5 % to this novel isolate. The highest sequence similarities displayed by strain B-IT (93.2–96.1 %) were to members of the genus Tenacibaculum. The phenotypic properties of this organism were consistent with its classification in the genus Tenacibaculum. The novel isolate could be distinguished from all Tenacibaculum species by several phenotypic characteristics. The major fatty acids were iso-C15 : 0 (22 %), summed feature 3 (C16 : 1 ω7c and/or iso-C15 : 0 2-OH; 21.3 %), iso-C17 : 0 3-OH (12.7 %) and iso-C15 : 1 (8.7 %). The G+C content of the genomic DNA was 35.2 mol%. Hence, genotypic and phenotypic data demonstrate that strain B-IT should be classified within a novel species in the genus Tenacibaculum, for which the name Tenacibaculum litopenaei sp. nov. is proposed. The type strain is B-IT (=BCRC 17590T=LMG 23706T).


2015 ◽  
Vol 65 (Pt_11) ◽  
pp. 4003-4007 ◽  
Author(s):  
Dong-Uk Kim ◽  
Hyosun Lee ◽  
Song-Gun Kim ◽  
Jae-Hyung Ahn ◽  
So Yoon Park ◽  
...  

A Gram-stain-negative, yellow-pigmented bacterial strain, designated PR1012KT, was isolated from a motor car evaporator core collected in Korea. Cells of the strain were facultatively anaerobic, non-spore-forming and rod-shaped. The strain grew at 10–40 °C (optimum, 25 °C), at pH 6.5–8.0 (optimum, pH 7.0–8.0) and in the presence of 0–1 % (w/v) NaCl. Phylogenetically, the strain was closely related to members of the genus Spirosoma (97.50–90.74 % 16S rRNA gene sequence similarities) and showed highest sequence similarity to Spirosoma panaciterrae DSM 21099T (97.50 %). Its predominant fatty acids included summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c), C16 : 1ω5c, iso-C15 : 0 and summed feature 4 (iso-C17 : 1 I and/or anteiso B) and it had MK-7 as the major menaquinone. The polar lipids present included phosphatidylethanolamine, one unknown aminophospholipid, two unknown aminolipids and five unknown polar lipids. The DNA G+C content of this strain was 54 mol%. Based on phenotypic, genotypic and chemotaxonomic data, strain PR1012KT represents a novel species in the genus Spirosoma, for which the name Spirosoma aerolatum sp. nov. is proposed. The type strain is PR1012KT ( = KACC 17939T = NBRC 110794T).


2012 ◽  
Vol 62 (Pt_10) ◽  
pp. 2322-2329 ◽  
Author(s):  
Ismet Ara ◽  
Baljinova Tsetseg ◽  
Damdinsuren Daram ◽  
Manabu Suto ◽  
Katsuhiko Ando

A Gram-reaction-positive aerobic actinomycete, designated strain MN08-A0118T, which produced short chains of non-motile spores on the tips of long sporophores and formed yellow–brown colonies with branched substrate mycelium, was studied in detail to determine its taxonomic position. On the basis of 16S rRNA gene sequence analyses, strain MN08-A0118T was grouped into the genus Herbidospora , being most closely related to Streptosporangium claviforme (98.2 %), Herbidospora osyris (98.2 %), Herbidospora daliensis (98.2 %), Herbidospora cretacea (97.9 %) and Herbidospora yilanensis (97.4 %). Chemotaxonomic data supported allocation of the strain to the genus Herbidospora . MK-10(H4) was the predominant menaquinone with minor amounts of MK-10(H6), MK-10(H2) and MK-9(H4); the fatty acid profile contained major amounts of iso-C16 : 0, C17 : 0 10-methyl, iso-C14 : 0 and iso-C16 : 0 2-OH; the phospholipid profile contained phosphatidylethanolamine, phosphatidylmethylethanolamine and glucosamine-containing phospholipids; and the whole-cell sugars included ribose, glucose, galactose, madurose and rhamnose (trace). The phylogenetic data, phenotypic and genotypic properties and DNA–DNA hybridization differentiated this strain from its closely related strains, S. claviforme (35–54 % DNA–DNA relatedness), H. osyris (39–51 %), H. daliensis (3–16 %), H. cretacea (34–39 %) and H. yilanensis (34–42 %). Thus, MN08-A0118T represents a novel species of the genus Herbidospora , for which the name Herbidospora mongoliensis sp. nov. is proposed, with MN08-A0118T ( = NBRC 105882T  = VTCC D9-22T) as the type strain. In addition, DNA–DNA hybridization results showed that S. claviforme and H. osyris are synonyms of H. cretacea .


2005 ◽  
Vol 55 (4) ◽  
pp. 1675-1680 ◽  
Author(s):  
Marcel Nordhoff ◽  
David Taras ◽  
Moritz Macha ◽  
Karsten Tedin ◽  
Hans-Jürgen Busse ◽  
...  

Limit-dilution procedures were used to isolate seven, helically coiled bacterial strains from faeces of swine that constituted two unidentified taxa. Comparative 16S rRNA gene sequence analysis showed highest similarity values with species of the genus Treponema indicating that the isolates are members of this genus. Strain 7CPL208T, as well as five further isolates, and 14V28T displayed the highest 16S rRNA gene sequence similarities with Treponema pectinovorum ATCC 33768T (92·3 %) and Treponema parvum OMZ 833T (89·9 %), respectively. Polar lipid profiles distinguished 7CPL208T and 14V28T from each other as well as from related species. Based on their phenotypic and genotypic distinctiveness, strains 7CPL208T and 14V28T are suggested to represent two novel species of the genus Treponema, for which the names Treponema berlinense sp. nov. and Treponema porcinum sp. nov. are proposed. The type strain for Treponema berlinense is 7CPL208T (=ATCC BAA-909T=CIP 108244T=JCM 12341T) and for Treponema porcinum 14V28T (=ATCC BAA-908T=CIP 108245T=JCM 12342T).


2010 ◽  
Vol 60 (12) ◽  
pp. 2903-2907 ◽  
Author(s):  
Shiou-Huei Chao ◽  
Masae Sasamoto ◽  
Yuko Kudo ◽  
Junji Fujimoto ◽  
Ying-Chieh Tsai ◽  
...  

Three Gram-positive-staining strains isolated from fermented stinky tofu brine were rod-shaped, non-motile, asporogenous, facultatively anaerobic, heterofermentative and did not exhibit catalase activity. Comparative analyses of 16S rRNA, rpoA and pheS gene sequences demonstrated that the novel strains were members of the genus Lactobacillus. On the basis of 16S rRNA gene sequence similarity, the type strains of Lactobacillus collinoides (98.6 %), Lactobacillus paracollinoides (98.6 %) and Lactobacillus similis (99.6 %) were the closest neighbours. However, DNA–DNA reassociation values with these strains were less than 10 %. The phenotypic and genotypic features demonstrated that these isolates represent a novel species of the genus Lactobacillus, for which the name Lactobacillus odoratitofui sp. nov. is proposed. The type strain is YIT 11304T (=JCM 15043T =BCRC 17810T =DSM 19909T).


2007 ◽  
Vol 57 (11) ◽  
pp. 2538-2542 ◽  
Author(s):  
A. M. Castillo ◽  
M. C. Gutiérrez ◽  
M. Kamekura ◽  
Y. Xue ◽  
Y. Ma ◽  
...  

A novel halophilic archaeon, strain EJ-32T, was isolated from water from Lake Ejinor in Inner Mongolia, China. The taxonomy of strain EJ-32T was studied by using a polyphasic approach. On the basis of 16S rRNA gene sequence similarities, strain EJ-32T was shown to be phylogenetically related to Halorubrum coriense (97.9 %), Halorubrum trapanicum (97.9 %), Halorubrum sodomense (97.8 %), Halorubrum tebenquichense (97.8 %), Halorubrum xinjiangense (97.6 %), Halorubrum terrestre (97.4 %), Halorubrum distributum (97.1 %) and Halorubrum saccharovorum (96.4 %). Strain EJ-32T was found to be neutrophilic, non-motile and Gram-negative. It grew in medium containing saturation concentrations of NaCl and did not require magnesium for optimal growth. The G+C content of the DNA is 64.0 mol%. Values for DNA–DNA hybridization with respect to phylogenetically related Halorubrum species were ≤49 %, indicating that EJ-32T constitutes a different genospecies. The data show that strain EJ-32T represents a novel species of the genus Halorubrum, for which the name Halorubrum ejinorense sp. nov. is proposed. The type strain is EJ-32T (=CECT 7194T=CGMCC 1.6782T=JCM 14265T).


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