scholarly journals Luteimicrobium subarcticum gen. nov., sp. nov., a new member of the suborder Micrococcineae

2010 ◽  
Vol 60 (4) ◽  
pp. 796-800 ◽  
Author(s):  
Moriyuki Hamada ◽  
Misa Otoguro ◽  
Hideki Yamamura ◽  
Tomohiko Tamura ◽  
Ken-ichiro Suzuki ◽  
...  

A novel Gram-stain-positive bacterium, designated R19-04T, was isolated from a soil sample from Rishiri Island, Japan, and its taxonomic position was investigated by a polyphasic approach. Cells of strain R19-04T exhibited a rod–coccus cycle. The peptidoglycan type of the isolate was A4α; lysine was the diagnostic diamino acid. The predominant menaquinone was MK-8(H2) and the major fatty acid was anteiso-C15 : 0. The polar lipids were diphosphatidylglycerol and phosphatidylglycerol. The DNA G+C content was 72.9 mol%. Phylogenetic analysis based on 16S rRNA gene sequence comparisons revealed that strain R19-04T represented a novel member of the suborder Micrococcineae. Its nearest phylogenetic neighbours were the members of the genus Oerskovia, with 16S rRNA gene sequence similarity of 97.0–97.1 %. However, strain R19-04T was clearly distinguishable from members of the genus Oerskovia and phylogenetically related genera in terms of chemotaxonomic characteristics. On the basis of the chemotaxonomic and phylogenetic characteristics, a novel genus and species are proposed, Luteimicrobium subarcticum gen. nov., sp. nov. The type strain of Luteimicrobium subarcticum is R19-04T (=NBRC 105647T =DSM 22413T).

2010 ◽  
Vol 60 (1) ◽  
pp. 196-199 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
So-Jung Kang ◽  
Yong-Taek Jung ◽  
Tae-Kwang Oh

A Gram-negative, non-motile and pleomorphic bacterial strain, SMK-114T, which belongs to the class Alphaproteobacteria, was isolated from a tidal flat sample collected in Byunsan, Korea. Strain SMK-114T grew optimally at pH 7.0–8.0 and 25–30 °C and in the presence of 2 % (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain SMK-114T formed a cluster with Octadecabacter species, with which it exhibited 16S rRNA gene sequence similarity values of 95.2–95.4 %. This cluster was part of the clade comprising Thalassobius species with a bootstrap resampling value of 76.3 %. Strain SMK-114T exhibited 16S rRNA gene sequence similarity values of 95.1–96.3 % to members of the genus Thalassobius. It contained Q-10 as the predominant ubiquinone and C18 : 1 ω7c as the major fatty acid. The DNA G+C content was 60.0 mol%. On the basis of phenotypic, chemotaxonomic and phylogenetic data, strain SMK-114T is considered to represent a novel species in a new genus for which the name Gaetbulicola byunsanensis gen. nov., sp. nov. is proposed. The type strain of Gaetbulicola byunsanensis is SMK-114T (=KCTC 22632T =CCUG 57612T).


2010 ◽  
Vol 60 (12) ◽  
pp. 2818-2822 ◽  
Author(s):  
Onuma Kaewkla ◽  
Christopher M. M. Franco

An aerobic, actinobacterial strain with rod-shaped spores, EUM 221T, which was isolated from the surface-sterilized stem of a grey box tree (Eucalyptus microcarpa), is described. Phylogenetic evaluation based on 16S rRNA gene sequence similarity showed that this isolate belongs to the family Pseudonocardiaceae, with the closest neighbour being Pseudonocardia zijingensis 6330T (98.7 %). The level of 16S rRNA gene sequence similarity between the isolate and species of the genus Pseudonocardia with validly published names ranged from 95 to 98 %. Chemotaxonomic data (meso-diaminopimelic acid; major menaquinone MK-8(H4); major fatty acid iso-C16 : 0) confirmed the affiliation of strain EUM 221T to the genus Pseudonocardia. The results of the phylogenetic analysis, including physiological and biochemical studies in combination with DNA–DNA hybridization, allowed the genotypic and phenotypic differentiation of strain EUM 221T from the closest described species. Therefore, this strain represented a novel species and the name proposed is Pseudonocardia adelaidensis sp. nov. The type strain is EUM 221T (=DSM 45352T =ACM 5286T).


2010 ◽  
Vol 60 (2) ◽  
pp. 349-352 ◽  
Author(s):  
Tong-Wei Guan ◽  
Jing Xiao ◽  
Ke Zhao ◽  
Xiao-Xia Luo ◽  
Xiao-Ping Zhang ◽  
...  

A novel bacterium, TRM 0175T, belonging to the genus Halomonas, was isolated from a soil sample taken from a salt lake in Xinjiang Province, north-west China. The isolate was Gram-negative, aerobic, rod-shaped and motile by means of peritrichous flagella. It was catalase-positive and oxidase-negative. Growth occurred at NaCl concentrations of 0–20 % (optimum at 10–13 %), at 15–50 °C (optimum at 37 °C) and at pH 6.0–9.0 (optimum at pH 7.0). Metabolism was respiratory with oxygen as terminal electron acceptor. Acid was produced from d-ribose, d- and l-arabinose, d-xylose, d-galactose, d-mannose, l-rhamnose, cellobiose, maltose, trehalose and d- and l-fucose and was produced weakly from aesculin. The predominant ubiquinone was Q-9. The major fatty acids were C18 : 1 ω7c and C19 : 0 cyclo ω8c. The G+C content of the genomic DNA was 60.0 mol%. The affiliation of strain TRM 0175T with the genus Halomonas was confirmed by 16S rRNA gene sequence comparisons. The most closely related species was Halomonas anticariensis; 16S rRNA gene sequence similarity between H. anticariensis FP35T and strain TRM 0175T was 95.3 %. Phenotypically, some characteristics of TRM 0175T differed from those of H. anticariensis. On the basis of data from this polyphasic study, strain TRM 0175T represents a novel species of the genus Halomonas, for which the name Halomonas xinjiangensis sp. nov. is proposed; the type strain is TRM 0175T (=CCTCC AB 208329T =KCTC 22608T).


2005 ◽  
Vol 55 (1) ◽  
pp. 153-157 ◽  
Author(s):  
Valme Jurado ◽  
Ingrid Groth ◽  
Juan M. Gonzalez ◽  
Leonila Laiz ◽  
Cesareo Saiz-Jimenez

A polyphasic study was carried out to clarify the taxonomic position of two Gram-positive bacteria isolated from soil samples of the Grotta dei Cervi (Italy), a relatively unexplored hypogean environment. The strains, 20-5T and 23-23T, showed phenotypic and phylogenetic characteristics that were consistent with their classification in the genus Agromyces. 16S rRNA gene sequence comparisons revealed that the two strains formed distinct phyletic lines within the genus Agromyces. Based on 16S rRNA gene sequence similarity, chemotaxonomic data and the results of DNA–DNA relatedness studies, it is proposed that the two isolates represent two novel species of the genus Agromyces. Pronounced differences in a broad range of phenotypic characteristics and DNA G+C content distinguished the two strains from each other and from previously described species of the genus Agromyces. Two novel species are proposed: Agromyces salentinus sp. nov. (type strain, 20-5T=HKI 0320T=DSM 16198T=NCIMB 13990T) and Agromyces neolithicus sp. nov. (type strain, 23-23T=HKI 0321T=DSM 16197T=NCIMB 13989T).


2011 ◽  
Vol 61 (4) ◽  
pp. 834-838 ◽  
Author(s):  
Misa Otoguro ◽  
Hideki Yamamura ◽  
Tomohiko Tamura ◽  
Rohmatussolihat Irzaldi ◽  
Shanti Ratnakomala ◽  
...  

Two actinomycete strains, ID05-A0653T and ID06-A0464T, were isolated from soils of West Timor and Lombok island, respectively, in Indonesia. 16S rRNA gene sequence analysis clearly demonstrated that the isolates belonged to the family Pseudonocardiaceae and were closely related to the genus Actinophytocola. Strains ID05-A0653T and ID06-A0464T exhibited 98.1 and 98.2 % 16S rRNA gene sequence similarity, respectively, with Actinophytocola oryzae GMKU 367T. The isolates grew well on ISP media and produced white aerial mycelium. Short spore chains were formed directly on the substrate mycelium. The isolates contained meso-diaminopimelic acid, arabinose and galactose as cell-wall components, MK-9(H4) as the sole isoprenoid quinone, iso-C16 : 0 as the major cellular fatty acid and phosphatidylethanolamine as the diagnostic polar lipid. The DNA G+C contents of strains ID05-A0653T and ID06-A0464T were 69.7 and 71.2 mol%, respectively. On the basis of phenotypic characteristics, DNA–DNA relatedness and 16S rRNA gene sequence comparisons, strains ID05-A0653T and ID06-A0464T each represent a novel species of the genus Actinophytocola, for which the names Actinophytocola timorensis sp. nov. (type strain ID05-A0653T  = BTCC B-673T  = NBRC 105524T) and Actinophytocola corallina sp. nov. (type strain ID06-A0464T  = BTCC B-674T  = NBRC 105525T) are proposed.


2005 ◽  
Vol 55 (6) ◽  
pp. 2329-2332 ◽  
Author(s):  
Hee-Chan Yang ◽  
Wan-Taek Im ◽  
Dong-Shan An ◽  
Woo-shin Park ◽  
In S. Kim ◽  
...  

A taxonomic study was carried out on a bacterial strain, designated KM-45T, isolated from forest soil collected near Daejeon, South Korea. Comparative 16S rRNA gene sequence analysis indicated a clear affiliation of this bacterium to the ‘Betaproteobacteria’ and that it was related most closely to Chitinibacter tainanensis BCRC 17254T, Formivibrio citricus DSM 6150T and Iodobacter fluviatilis ATCC 33051T (92·4, 91·2 and 88·9 % 16S rRNA gene sequence similarity, respectively). Cells were Gram-negative, facultatively anaerobic, motile and rod-shaped. The strain grew well on R2A medium and utilized a broad spectrum of carbon sources. The G+C content of the genomic DNA was 58 mol% and the predominant ubiquinone was Q-8. Major fatty acids were C16 : 0, C16 : 1 ω7c/iso-C15 : 0 2-OH, C18 : 1 ω7c/ω9t/ω12t and C17 : 0 cyclo. On the basis of the evidence presented, it is proposed that strain KM-45T should be placed in a novel genus and species, for which the name Silvimonas terrae gen. nov., sp. nov. is proposed. The type strain is KM-45T (=KCTC 12358T=NBRC 100961T).


2004 ◽  
Vol 54 (5) ◽  
pp. 1845-1848 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
Soo-Hwan Yeo ◽  
Tae-Kwang Oh

Two Gram-negative, non-motile, non-spore-forming, rod-shaped strains, SW-2T and SW-26, were isolated from sea water of the East Sea in Korea. These organisms grew optimally at 37 °C and in the presence of 2–3 % (w/v) NaCl. They did not grow without NaCl or in the presence of >9 % (w/v) NaCl. Strains SW-2T and SW-26 were characterized chemotaxonomically as having MK-7 as the predominant isoprenoid quinone and iso-C15 : 0 as the major fatty acid. The DNA G+C content of strains SW-2T and SW-26 was 43 mol%. A neighbour-joining tree based on 16S rRNA gene sequences showed that strains SW-2T and SW-26 fell within the Cytophaga–Flavobacterium–Bacteroides group and formed a coherent cluster with Hongiella species. Strains SW-2T and SW-26 showed a 16S rRNA gene sequence similarity value of 99·9 % and a mean DNA–DNA relatedness level of 87 % to each other. Levels of 16S rRNA gene sequence similarity between strains SW-2T and SW-26 and the type strains of two Hongiella species ranged from 94·2 to 96·6 %. On the basis of phenotypic and chemotaxonomic properties and phylogenetic distinctiveness, strains SW-2T and SW-26 should be placed in the genus Hongiella as members of a novel species, for which the name Hongiella marincola sp. nov. is proposed. The type strain is SW-2T (=KCTC 12180T=DSM 16067T).


2010 ◽  
Vol 60 (10) ◽  
pp. 2293-2297 ◽  
Author(s):  
Maya Shnit-Orland ◽  
Alex Sivan ◽  
Ariel Kushmaro

A marine bacterial strain, designated fav-2-10-05T, was isolated from the mucus layer of a coral of the genus Favia, collected from the coral reef in the Gulf of Eilat, Israel (29.5 ° N 34.9 ° E). On the basis of 16S rRNA gene sequence comparisons, strain fav-2-10-05T was affiliated with the family Shewanellaceae. The closest relatives of strain fav-2-10-05T were Shewanella marisflavi SW-117T (96.0 % 16S rRNA gene sequence similarity) and Shewanella haliotis DW-1T (95.9 %). Strain fav-2-10-05T was Gram-negative, rod-shaped and motile by means of a single polar flagellum and formed yellow–brownish colonies within 2 days of incubation at 26 °C. Strain fav-2-10-05T demonstrated antibacterial activity against indicator strains and grew in the presence of 0.5–8.0 % (w/v) NaCl and at 10–37 °C. The major fatty acids were C17 : 1 ω8c (21.6 %), iso-C15 : 0 (18.6 %), C15 : 0 (9.1 %) and iso-C13 : 0 (8.9 %). The DNA G+C content was 49.1 mol%. The phylogenetic and phenotypic analyses of strain fav-2-10-05T suggested that it belongs to a novel species of the genus Shewanella, for which the name Shewanella corallii sp. nov. is proposed. The type strain is fav-2-10-05T (=LMG 24563T =DSM 21332T).


2005 ◽  
Vol 55 (1) ◽  
pp. 341-344 ◽  
Author(s):  
Peter Kämpfer ◽  
Renate Schulze ◽  
Udo Jäckel ◽  
Khursheed A. Malik ◽  
Rudolf Amann ◽  
...  

Two Gram-negative, oxidase-positive rods (strains BSB 9.5T and BSB 41.8T) isolated from wastewater were studied using a polyphasic approach. 16S rRNA gene sequence comparisons demonstrated that both strains cluster phylogenetically within the family Comamonadaceae: the two strains shared 99·9 % 16S rRNA gene sequence similarity and were most closely related to the type strains of Hydrogenophaga palleronii (98·5 %) and Hydrogenophaga taeniospiralis (98·0 %). The fatty acid patterns and substrate-utilization profiles displayed similarity to the those of the five Hydrogenophaga species with validly published names, although clear differentiating characteristics were also observed. The two strains showed DNA–DNA hybridization values of 51 % with respect to each other. No close similarities to any other Hydrogenophaga species were detected in hybridization experiments with the genomic DNAs. On the basis of these results, two novel Hydrogenophaga species, Hydrogenophaga defluvii sp. nov. and Hydrogenophaga atypica sp. nov. are proposed, with BSB 9.5T (=DSM 15341T=CIP 108119T) and BSB 41.8T (=DSM 15342T=CIP 108118T) as the respective type strains.


2005 ◽  
Vol 55 (5) ◽  
pp. 1811-1816 ◽  
Author(s):  
Ken-ichiro Iida ◽  
Yasuichi Ueda ◽  
Yoshiaki Kawamura ◽  
Takayuki Ezaki ◽  
Akemi Takade ◽  
...  

A novel bacterial strain, MC10T, was isolated from a compost sample produced in a composting machine utilizing soil from Motobu-town, Okinawa, Japan. The isolate was Gram-negative, but produced endospores. These conflicting characters prompted a taxonomic study of the isolate. The isolate was examined using a combination of phenotypic characterization, cellular fatty acid analysis, DNA base composition determination and 16S rRNA gene sequence analysis. Phylogenetic analysis, based on 16S rRNA gene sequence comparisons, placed strain MC10T within the genus Paenibacillus. As in other Paenibacillus species, the isolate contained anteiso-C15 : 0 as the major fatty acid and the DNA G+C content was 47·0 mol%. However, 16S rRNA gene sequence similarity values of less than 95·6 % were found between this isolate and all members of the genus Paenibacillus. Based upon these results, strain MC10T (=GTC 1835T=JCM 12774T=CCUG 50090T) should be designated as the type strain of a novel species within the genus Paenibacillus, Paenibacillus motobuensis sp. nov.


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