scholarly journals Cohnella arctica sp. nov., isolated from Arctic tundra soil

2012 ◽  
Vol 62 (Pt_4) ◽  
pp. 817-821 ◽  
Author(s):  
Fan Jiang ◽  
Jun Dai ◽  
Yang Wang ◽  
Xiuqing Xue ◽  
Mengbo Xu ◽  
...  

A psychrotolerant Gram-reaction-negative, rod-shaped and orange-pigmented bacterium, designated strain M9-62T, which was motile by means of peritrichous flagella, was isolated from tundra soil sampled near Ny-Ålesund, Svalbard Islands, Norway (78° N). Growth occurred at 4–30 °C (optimum, 25 °C) and pH 5.0–8.0 (optimum, pH 6.0–7.0). Analysis of the 16S rRNA gene sequence of strain M9-62T placed it in the genus Cohnella ; sequence similarities of the isolate with type strains of members of related genera ranged from 92.0 to 96.3 %. Strain M9-62T contained anteiso-C15 : 0 (51.1 %), iso-C16 : 0 (7.5 %) and C16 : 0 (6.1 %) as the major cellular fatty acids and diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and lysyl-phosphatidylglycerol as the main polar lipids. The major respiratory quinone was MK-7 and the DNA G+C content was 50.3 mol%. On the basis of phenotypic, chemotaxonomic and phylogenetic data, strain M9-62T is considered to represent a novel species of the genus Cohnella , for which the name Cohnella arctica sp. nov. is proposed; the type strain is M9-62T ( = CCTCC AB 2010228T = NRRL B-59459T).

2015 ◽  
Vol 65 (Pt_5) ◽  
pp. 1515-1519 ◽  
Author(s):  
Chao-Yi Lin ◽  
Xi-Ying Zhang ◽  
Ang Liu ◽  
Chang Liu ◽  
Xiao-Yan Song ◽  
...  

A novel Gram-stain-negative, aerobic, orange-pigmented, non-flagellated, gliding, rod-shaped bacterium, designated strain SM1354T was isolated from surface seawater of the Atlantic Ocean. The strain hydrolysed gelatin and DNA but did not reduce nitrate. It grew at 4–40 °C and with 0.5–11 % (w/v) NaCl. Phylogenetic analysis of the 16S rRNA gene sequences revealed that strain SM1354T belonged to the genus Marivirga with 96.0–96.2 % sequence similarities to known species of the genus Marivirga . The major fatty acids of strain SM1354T were iso-C15 : 0, iso-C15 : 1 G, iso-C17 : 03-OH and summed feature 3 (C16 : 1ω7c and/or iso-C15 : 02-OH). Polar lipids of strain SM1354T included phosphatidylethanolamine, three unidentified lipids and one unidentified aminolipid and aminophospholipid. The major respiratory quinone of strain SM1354T was menaquinone 7 (MK-7). The genomic DNA G+C content of strain SM1354T was 33.9±0.4 mol%. On the basis of the results of the polyphasic characterization in this study, it is proposed that strain SM1354T represents a novel species of the genus Marivirga , namely Marivirga atlantica sp. nov. The type strain of Marivirga atlantica is SM1354T ( = CCTCC AB 2014242T = JCM 30305T). An emended description of the genus Marivirga is also proposed.


2015 ◽  
Vol 65 (Pt_1) ◽  
pp. 230-234 ◽  
Author(s):  
Sung-Hyun Yang ◽  
Hyun-Seok Seo ◽  
Jung-Hyun Lee ◽  
Sang-Jin Kim ◽  
Kae Kyoung Kwon

A Gram-reaction-negative, aerobic, rod-shaped and non-motile marine bacterium, designated MEBiC09566T was isolated from a sponge collected at Uljin County in the coastal area of the East Sea (36° 55′ N, 129° 25′ E), Korea. The 16S rRNA gene sequence analysis revealed that strain MEBiC09566T showed the highest similarity with the Kiloniella laminariae LD81T (96.7 %). Growth was observed at 11–31 °C (optimum 25 °C), at pH 6.0–8.5 (optimum pH 7.0) and with 0–6 % (optimum 2.5 %) NaCl. The predominant cellular fatty acids were summed feature 8 (comprised of C18 : 1ω7c/C18 : 1ω6c) and summed feature 3 (comprised of C16 : 1ω7c and/or C16 : 1ω6c). The DNA G+C content is 44.6 mol%. The major respiratory quinone is Q-9. Phosphatidylethanolamine, phosphatidylglycerol, an unidentified lipid, two unidentified aminophospholipids and one unidentified aminolipid were detected as major polar lipids. On the basis of this polyphasic taxonomic data, it is concluded that strain MEBiC09566T should be classified as representing a novel species in the genus Kiloniella and the name proposed is Kiloniella spongiae sp. nov. The type strain is MEBiC09566T ( = KCCM 43040T = JCM 19930T). Emended descriptions of the genus Kiloniella Wiese et al. 2009 and Kiloniella laminariae are also given.


2014 ◽  
Vol 64 (Pt_11) ◽  
pp. 3650-3654 ◽  
Author(s):  
Sung-Hyun Yang ◽  
Hyun-Seok Seo ◽  
Jung-Hyun Lee ◽  
Sang-Jin Kim ◽  
Kae Kyoung Kwon

A Gram-reaction-negative, aerobic, rod-shaped (1.2–1.6 µm×0.6–0.8 µm), flagellated and motile marine bacterium, designated MEBiC06243T, was isolated from a sediment collected at Daebu Island in the Yellow Sea (37° 20′ N 126° 41′ E), Korea. The 16S rRNA gene sequence analysis revealed that strain MEBiC06243T showed high similarity with Neptunomonas naphthovorans NAG-2N-126T (96.3 %). Growth was observed at 10–39 °C (optimum 29 °C), at pH 6.0–9.0 (optimum pH 7) and with 0–7 % (optimum 2.5 %) NaCl. The predominant cellular fatty acids were C10 : 0 3-OH (6.1 %), C12 : 0 (5.8 %), C16 : 0 (30.5 %), C18 : 1ω7c (21.6 %) and summed feature 3 (comprising C15 : 0 2-OH and/or C16 : 1ω7c; 30.7 %). The DNA G+C content was 41.4 mol%. The major respiratory quinone was Q-8. Phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, two unidentified lipids, one unidentified aminophospholipid and three unidentified aminolipids were detected as major polar lipids. On the basis of this polyphasic taxonomic data, strain MEBiC06243T should be classified as a novel species of the genus Neptunomonas proposed as Neptunomonas acidivorans sp. nov. The type strain is MEBiC06243T ( = KCCM 42975T = JCM 18291T). An emended description of the genus Neptunomonas is also given.


2013 ◽  
Vol 63 (Pt_12) ◽  
pp. 4484-4488 ◽  
Author(s):  
R. Kathiravan ◽  
S. Jegan ◽  
V. Ganga ◽  
V. R. Prabavathy ◽  
L. Tushar ◽  
...  

The taxonomic position of strain MSSRFBL1T, isolated from chickpea rhizosphere soil from Kannivadi, India, was determined. Strain MSSRFBL1T formed bluish black colonies, stained Gram-negative and was motile, aerobic, capable of fixing dinitrogen, oxidase-negative and catalase-positive. Q-10 was the major respiratory quinone. Major fatty acids of strain MSSRFBL1T were C18 : 1ω7c and C19 : 0cycloω8c. Minor amounts of C18 : 0, C12 : 0, C14 : 0 3-OH, C18 : 0 3-OH, C16 : 0, C16 : 1ω6c/C16 : 1ω7c, C17 : 0 3-OH and C20 : 1ω7c were also present. Polar lipids included diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylmethylethanolamine, phosphatidylcholine and two unidentified glycolipids. Bacteriohopane derivatives (BHD1 and 2), diplopterol, diploptene, bishomohopanediol, adenosylhopane and 2β-methyl bacteriohopanetetrol were the major hopanoids of strain MSSRFBL1T. The genomic DNA G+C content was 71 mol%. EzTaxon-e-based blast analysis of the 16S rRNA gene indicated the highest similarity of strain MSSRFBL1T to Ensifer adhaerens LMG 20216T (97.3 %) and other members of the genus Ensifer (<96.9 %) in the family Rhizobiaceae of the class Alphaproteobacteria . However, phylogenetic analysis based on 16S rRNA, recA, thrC and dnaK gene sequences showed distinct out-grouping from the recognized genera of the family Rhizobiaceae . Based on phenotypic, genotypic and chemotaxonomic characters, strain MSSRFBL1T represents a novel species in a new genus in the family Rhizobiaceae for which the name Ciceribacter lividus gen. nov., sp. nov. is proposed. The type strain of Ciceribacter lividus is MSSRFBL1T ( = DSM 25528T = KCTC 32403T).


2013 ◽  
Vol 63 (Pt_6) ◽  
pp. 2168-2173 ◽  
Author(s):  
Li-Na Sun ◽  
Jun Zhang ◽  
Qing Chen ◽  
Jian He ◽  
Qin-Fen Li ◽  
...  

A novel biosurfactant-producing strain, designated YW1T, was isolated from agricultural soil. Its taxonomic position was investigated using a polyphasic approach. The cells were short rods, Gram-negative, non-sporulating and motile. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain YW1T was a member of the genus Comamonas , and showed highest sequence similarities to Comamonas aquatica LMG 2370T (98.5 %), Comamonas kerstersii LMG 3475T (97.7 %) and Comamonas terrigena LMG 1253T (97.7 %). Furthermore, DNA–DNA hybridization experiments against these three strains gave results that were clearly lower than 70 % DNA–DNA similarity, and consequently confirmed that this new strain does not belong to a previously described species of the genus Comamonas . The major respiratory quinone was ubiquinone-8. The major fatty acids (>5 %) were C16 : 0 (30.1 %), summed feature 3 (C16 : 1ω6c and/or C16 : 1ω7c; 25.4 %), summed feature 8 (C18 : 1ω6c and/or C18 : 1ω7c; 15.3 %), C17 : 0 cyclo (7.4 %) and C14 : 0 (5.8 %). The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, unknown phospholipids and unknown lipids. Based on the phylogenetic analysis, DNA–DNA hybridization, whole-cell fatty acid composition as well as biochemical characteristics, strain YW1T was clearly distinguishable from all species of the genus Comamonas with validly published names and should be classified as a representative of a novel species of the genus Comamonas , for which the name Comamonas jiangduensis sp. nov. is proposed. The type strain is YW1T ( = CCTCC AB 2012033T = KACC 16697T).


2015 ◽  
Vol 65 (Pt_6) ◽  
pp. 1735-1740 ◽  
Author(s):  
You-Jung Jung ◽  
Yung Mi Lee ◽  
Kiwoon Baek ◽  
Chung Yeon Hwang ◽  
Yirang Cho ◽  
...  

A Gram-stain-negative, aerobic, yellow-pigmented, flexirubin-negative, rod-shaped, non-motile and psychrophilic bacterial strain, PAMC 27237T, was isolated from marine sediment of the Ross Sea, Antarctica. Strain PAMC 27237T grew at 0–20 °C (optimally at 17 °C), at pH 5.0–9.5 (optimally at pH 7.0) and in the presence of 0–3.5 % (w/v) NaCl (optimally at 1.5–2.5 %). The major fatty acids (≥5 %) were iso-C17 : 0 3-OH, C17 : 0 2-OH, anteiso-C15 : 0, summed feature 3 (C16 : 1ω6c/C16 : 1ω7c), iso-C15 : 0 3-OH, anteiso-C17 : 1ω9c, anteiso-C15 : 1 A, iso-C16 : 0 3-OH and iso-C15 : 1 G. The major polar lipids were phosphatidylethanolamine, two unidentified aminolipids, four unidentified lipids and a glycolipid. The major respiratory quinone was MK-6. Phylogenetic analysis based on the 16S rRNA gene sequence revealed that strain PAMC 27237T belongs to the genus Algibacter, showing high similarities with the type strains of Algibacter agarivorans (97.2 %), Algibacter agarilyticus (97.0 %) and Algibacter mikhailovii (96.4 %). Average nucleotide identity values between strain PAMC 27237T and the type strains of A. agarivorans and A. agarilyticus were 83.1 and 84.2 %, respectively, and mean genome-to-genome distances were 22.4–24.2 %, indicating that strain PAMC 27237T is clearly distinguished from the most closely related species of the genus Algibacter . The genomic DNA G+C content calculated from genome sequences was 33.5 mol%. Based on the phenotypic, chemotaxonomic and phylogenetic data presented, strain PAMC 27237T is considered to represent a novel species of the genus Algibacter , for which the name Algibacter psychrophilus sp. nov. is proposed. The type strain is PAMC 27237T ( = KCTC 42130T = JCM 30370T).


2014 ◽  
Vol 64 (Pt_11) ◽  
pp. 3798-3803 ◽  
Author(s):  
Fan Jiang ◽  
Xia Qiu ◽  
Xulu Chang ◽  
Zhihao Qu ◽  
Lvzhi Ren ◽  
...  

A novel, Gram-stain-negative, aerobic, non-motile and rod-shaped bacterium, designated R9-86T, was isolated from tundra soil collected near Ny-Ålesund, Svalbard Archipelago, Norway (78° N). Growth occurred at 4–28 °C (optimum, 22–25 °C) and at pH 6.0–9.0 (optimum, pH 7.0). Flexirubin-type pigments were absent. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain R9-86T belonged to the genus Terrimonas in the family Chitinophagaceae . 16S rRNA gene sequence similarities between strain R9-86T and the type strains of species of the genus Terrimonas with validly published names ranged from 93.7 to 95.0 %. Strain R9-86T contained iso-C15 : 1-G (25.7 %), iso-C15 : 0 (24.5 %), iso-C17 : 0-3OH (18.3 %) and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c, 8.7 %) as its major cellular fatty acids; phosphatidylethanolamine and an unknown polar lipid as its main polar lipids, and MK-7 as its predominant respiratory quinone. The DNA G+C content was 48.4 mol%. On the basis of phenotypic, chemotaxonomic and phylogenetic data, strain R9-86T is considered to represent a novel species of the genus Terrimonas , for which the name Terrimonas arctica sp. nov. is proposed. The type strain is R9-86T ( = CCTCC AB 2011004T = NRRL B-59114T).


2019 ◽  
Vol 69 (4) ◽  
pp. 1220-1224 ◽  
Author(s):  
Guan-tang Xu ◽  
Chungen Piao ◽  
Ju-pu Chang ◽  
Li-min Guo ◽  
Xu-qi Yang ◽  
...  

We isolated five novel bacterial strains from symptomatic bark tissue of Populus × euramericana canker that were Gram-stain-negative, non-motile, aerobic oxidase-negative and catalase-positive. Growth occurred at 10–41 °C and at pH 5.0–7.0, with optimum growth at 30 °C and pH 7.0. Additionally, growth occurred in conditions of 0–5 % (w/v) salinity, but not above 7 % NaCl. The 16S rRNA gene sequences of the novel strains shared the highest similarity with Sinorhodobacter ferrireducens SgZ-3T (97.1 %). The average nucleotide identity values between the novel strains and two type strains (S.inorhodobacter ferrireducens CCTCC AB2012026T and ‘ S inorhodobacter hungdaonensis’ CGMCC 1.12963T) were 78.4–78.9 %, which were lower than the proposed species boundary cut-off (95–96 %). The main polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, an unidentified lipid and phosphatidylcholine. The main respiratory quinone was Q-10, and major fatty acids were C18 : 1ω7c and/or C18 : 1 ω6c. Based on data from a polyphasic taxonomy study, the novel strains represent a novel species of the genus Sinorhodobacter , for which the name Sinorhodobacter populi sp. nov. is proposed. The type strain is sk2b1T (=CFCC 14580T=KCTC 52802T).


Author(s):  
Seung Seob Bae ◽  
Yoon-Hee Jung ◽  
Yong Min Kwon ◽  
Dawoon Chung ◽  
Kyunghwa Baek

A Gram-stain-negative, motile, facultatively anaerobic rod-shaped bacterium with a polar flagellum, designated strain S7T was isolated from seawater sample collected at Uljin marina, in the East Sea of the Republic of Korea. Phylogenetic analysis based on the 16S rRNA gene sequences revealed that strain S7T was affiliated with members of genus Ferrimonas, showing the highest sequence similarities to the type strains Ferrimonas senticii P2S11T (95.7 %), Ferrimonas balearica PATT (95.7 %) and Ferrimonas pelagia CBA4601T (95.1 %). The genome was 4.13 Mbp with a DNA G+C content of 49.4 %. The average nucleotide identity (ANI) and digital DNA–DNA hybridization (dDDH) between S7T and F. senticii P2S11T and F. balearica PATT yielded ANI values of 71.9 and 70.7 %, and dDDH values of 15.1 and 13.9 %, respectively. The genome of S7T was predicted to encode triacylglycerol lipase, phospholipase A1/A2 and lysophospholipase as well as esterase involved in lipolytic processes. Growth was observed at 8–31 °C (optimum 27 °C), at pH 7–9 (optimum pH 7), and with 1–6 % NaCl (optimum 2 %). The respiratory quinones were MK-7 and Q-7 and the major fatty acids (>10 %) were C16 : 0, C16 : 1ω9c, C17 : 1ω8c, and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c). The major polar lipids were identified as phosphatidylethanolamine, phosphatidylglycerol, two unidentified phospholipids, and three unidentified lipids. On the basis of the results of this polyphasic analysis, it was determined that the strain represents a novel species of the genus Ferrimonas , for which the name Ferrimonas lipolytica sp. nov. is proposed. The type strain is S7T (=KCTC 72490T=JCM 33793T).


Author(s):  
Shu-Ling Jian ◽  
Lin Xu ◽  
Fan-Xu Meng ◽  
Cong Sun ◽  
Xue-Wei Xu

A Gram-stain-positive, aerobic, chemo-organotrophic, rod-shaped, non-spore-forming strain, which produced convex, circular, pink-pigmented colonies, designated as DY32-46T, was isolated from seawater collected from the Pacific Ocean. DY32-46T was found to grow at 20–40 °C (optimum, 30–35 °C), pH 6.0–8.0 (optimum, pH 6.5) and with 0–5 % (w/v) NaCl (optimum, 1–2 %). The results of chemotaxonomic analysis indicated that the respiratory quinone of DY32-46T was MK-9(H4), and major fatty acids (>10 %) were C17 : 1 ω8c, summed feature 3 (C16 : 1 ω7c and/or C16 : 1 ω6c), C16 : 0 and C15 : 1 ω6c. The polar lipids included diphosphatidylglycerol, phosphatidylglycerol, one unidentified aminophospholipid, three unidentified glycolipids, three unidentified phospholipids, one unidentified phosphoglycolipid and five unidentified lipids. The DNA G+C content of DY32-46T was 70.6 mol%. The results of phylogenetic analysis based on 16S rRNA gene sequences and genomic data indicated that DY32-46T should be assigned to the genus Euzebya . ANI and in silico DNA–DNA hybridization values between strain DY32-46T and type strains of Euzebya species were 73.1–87.2 % and 20.2–32.4 %, respectively. Different phenotypic properties, together with genetic distinctiveness, demonstrated that strain DY32-46T was clearly distinct from recognized species of the genus Euzebya . Therefore, DY32-46T represents a novel species within the genus Euzebya , for which the name Euzebya pacifica sp. nov is proposed. The type strain is DY32-46T (=MCCC 1K03476T=KCTC 49091T).


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