Isolation and polyphasic identification of Tateyamaria armeniaca sp. nov.

2019 ◽  
Vol 366 (15) ◽  
Author(s):  
Jaewoo Yoon

ABSTRACT A novel alphaproteobacterium, designated KMU-156T, was isolated from seawater collected on the coast of Jeju Island, Republic of Korea, and its phylogenetic position was determined using a polyphasic taxonomic approach. Strain KMU-156T was Gram-stain-negative, strictly aerobic, apricot-colored, rod-shaped, non-motile and chemoorganoheterotrophic. Phylogenetic study based on the 16S rRNA gene sequence revealed that the novel bacterium belongs to the family ‘Rhodobacteraceae’, of the class Alphaproteobacteria, and that it possessed the greatest sequence similarity (98.2%) with Tateyamaria omphalii MKT107T. DNA–DNA hybridization values between strains KMU-156T, T. omphalii KCTC 12333T and Tateyamaria pelophila DSM 17270T were less than 70%. The major isoprenoid quinone of the novel isolate was ubiquinone-10 (Q-10) and the major (> 10%) cellular fatty acids were C16:0 and C18:1 ω7c. The genomic DNA G + C content of strain KMU-156T was 59.3 mol%. The polar lipid profile of the strain KMU-156T had phosphatidylglycerol, phosphatidylcholine, an unidentified aminolipid, an unidentified phospholipid and two unidentified lipids. From the discriminative taxonomic features, the strain is considered to represent a novel species of the genus Tateyamaria for which the name Tateyamaria armeniaca sp. nov. is proposed. The type strain of T. armeniaca sp. nov. is KMU-156T (= KCCM 90321T = NBRC 113460T).

2012 ◽  
Vol 62 (Pt_7) ◽  
pp. 1528-1535 ◽  
Author(s):  
Dong-Heon Lee ◽  
Sun Ja Cho ◽  
Suk Min Kim ◽  
Sun Bok Lee

A Gram-staining-negative, strictly aerobic, non-motile, yellow-pigmented bacterium, designated strain M091T, was isolated from seawater at Damupo beach in Pohang, Republic of Korea, and investigated using a polyphasic taxonomic approach. The novel strain grew optimally at 25 °C, pH 7.0–8.0, and in the presence of 3 % (w/v) NaCl. In a phylogenetic analysis based on 16S rRNA gene sequences, strain M091T formed a lineage within the family Flavobacteriaceae that was distinct from the most closely related genera of Flaviramulus (95.1 % sequence similarity), Algibacter (94.9–93.9 %), Mariniflexile (94.8–94.2 %), Winogradskyella (94.8–93.2 %), Lacinutrix (94.7–93.8 %) and Tamlana (94.7–92.9 %). The polar lipid profile of the novel strain comprised phosphatidylethanolamine, two unidentified aminolipids, one unidentified phospholipid and seven unidentified lipids. The predominant cellular fatty acids were iso-C15 : 0 (20.5 %), iso-C17 : 0 3-OH (15.4 %), iso-C15 : 0 3-OH (12.4 %), C15 : 0 (10.9 %) and iso-C15 : 1 G (9.9 %). The genomic DNA G+C content of strain M091T was 34.4 mol% and the major respiratory quinone was MK-6. Based on phenotypic and genotypic data, strain M091T represents a new genus and novel species in the family Flavobacteriaceae , for which the name Postechiella marina gen. nov., sp. nov. is proposed. The type strain of the type species is M091T ( = KCTC 23537T = JCM 17630T).


2015 ◽  
Vol 65 (Pt_2) ◽  
pp. 472-478 ◽  
Author(s):  
Shih-Yi Sheu ◽  
Hsing-Wei Huang ◽  
Chiu-Chung Young ◽  
Wen-Ming Chen

A bacterial strain designated TNR-22T was isolated from a freshwater river in Taiwan and characterized using a polyphasic taxonomic approach. Cells of strain TNR-22T were facultatively anaerobic, Gram-stain-negative, rod-shaped, motile by a single polar flagellum and formed cream-coloured colonies. Growth occurred at 4–45 °C (optimum, 25–30 °C), with 0–1.0 % (w/v) NaCl (optimum, 0.5 %) and at pH 7.0–8.0 (optimum, pH 7.0). Strain TNR-22T did not form nodules on Macroptilium atropurpureum. The nifH gene encoding denitrogenase reductase was not detected by PCR. The major fatty acids (>10 %) of strain TNR-22T were C18 : 1ω7c and C16 : 0. The DNA G+C content was 60.3 mol%. The polar lipid profile consisted of a mixture of phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, diphosphatidylglycerol, an uncharacterized aminoglycolipid and an uncharacterized phospholipid. Comparative analysis of 16S rRNA gene sequences showed that strain TNR-22T constituted a distinct branch within the genus Rhizobium , showing the highest level of sequence similarity with Rhizobium rosettiformans W3T (96.3 %). Phenotypic characteristics of the novel strain also differed from those of the most closely related species of the genus Rhizobium . On the basis of the genotypic, chemotaxonomic and phenotypic data, strain TNR-22T represents a novel species in the genus Rhizobium , for which the name Rhizobium alvei sp. nov. is proposed. The type strain is TNR-22T ( = BCRC 80408T = LMG 26895T = KCTC 23919T).


2012 ◽  
Vol 62 (Pt_3) ◽  
pp. 688-692 ◽  
Author(s):  
Ki-Hoon Oh ◽  
Won-Chan Choi ◽  
Yong-Taek Jung ◽  
So-Jung Kang ◽  
Tae-Kwang Oh ◽  
...  

A Gram-staining-negative, aerobic, non-motile and rod-shaped bacterial strain, designated DPG-21T, was isolated from seawater from the South Sea in Korea, and investigated using a polyphasic taxonomic approach. Strain DPG-21T grew optimally at pH 7.0–8.0, at 30 °C and in the presence of 2 % (w/v) NaCl. In a neighbour-joining phylogenetic tree based on 16S rRNA gene sequences, strain DPG-21T clustered with Tropicimonas isoalkanivorans B51T (with a sequence similarity of 97.1 %); the novel strain showed lower 16S rRNA gene sequence similarities (<95.4 %) with the other species included in the tree. The mean DNA–DNA relatedness value between strain DPG-21T and T. isoalkanivorans DSM 19548T was 12 %. The predominant ubiquinones of strain DPG-21T were Q-10 and Q-9 while C18 : 1ω7c was the strain’s major fatty acid. The polar lipid profile of strain DPG-21T was similar to that of T. isoalkanivorans DSM 19548T. The genomic DNA G+C content of the novel strain was 69.6 mol%. Some phenotypic properties and the phylogenetic and genetic data indicated that strain DPG-21T was distinct from T. isoalkanivorans and represents a novel species of the genus Tropicimonas, for which the name Tropicimonas aquimaris sp. nov. is proposed. The type strain is DPG-21T ( = KCTC 23424T = CCUG 60524T).


2020 ◽  
Vol 367 (13) ◽  
Author(s):  
Jaewoo Yoon

ABSTRACT A novel alphaproteobacterium, designated as KMU-115T, was isolated from seawater collected on the coast of Chuam Beach, Republic of Korea, and subjected to a polyphasic characterization. The cells were pale apricot-colored, strictly aerobic, Gram-staining-negative, rod-shaped, non-motile and chemoorganoheterotrophic. The novel isolate grew at NaCl concentrations of 0–7%, pH 6.0–9.5 and 10–45°C. A phylogenetic analysis based on the 16S rRNA gene sequence revealed that strain KMU-115T belongs to the family ‘Rhodobacteraceae’, and that it had the greatest sequence similarity (96.8%) with ‘Roseibacterium beibuensis’ JLT1202rT. The major respiratory quinone system of the novel isolate was ubiquinone-10 (Q-10) and the main (&gt;10%) cellular fatty acid was C18:1 ω7c. The assembled draft genome size of strain KMU-115T was 3.71 Mbp. The genomic DNA G + C content was 70.8 mol%. Strain KMU-115T had phosphatidylglycerol, four unidentified aminolipids, an unidentified aminophospholipid and seven unidentified lipids as polar lipids. From the distinct polyphasic taxonomic characteristics, the strain is considered to represent a novel species of the genus Roseibacterium for which the name Roseibacterium persicicum sp. nov. is proposed. The type strain of R. persicicum sp. nov. is KMU-115T (= KCCM 90339T = NBRC 114190T). An emended description of the genus Roseibacterium is also provided.


2013 ◽  
Vol 63 (Pt_1) ◽  
pp. 321-326 ◽  
Author(s):  
Dong-Heon Lee ◽  
Sun Ja Cho ◽  
Suk Min Kim ◽  
Sun Bok Lee

A novel bacterium, designated F081-2T, isolated from seawater from Damupo beach in Pohang, Korea, was investigated using a polyphasic taxonomic approach. Cells were yellow-pigmented, strictly aerobic, motile by gliding, Gram-negative-staining and rod-shaped. The temperature, pH and NaCl ranges for growth were 4–35 °C, pH 5.5–9.5 and 1.0–5.0 %, respectively. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain F081-2T belonged to a distinct lineage in the genus Winogradskyella of the family Flavobacteriaceae , sharing 93.7–98.1 % similarity with recognized members of the genus. Low levels of DNA–DNA relatedness values were found between strain F081-2T and Winogradskyella eximia KCTC 12219T (61.1 %), Winogradskyella thalassocola KCTC 12221T (47.0 %), Winogradskyella echinorum KCTC 22026T (39.3 %), Winogradskyella rapida CCUG 56098T (34.3 %) and Winogradskyella arenosi JCM 17633T (33.4 %). The major cellular fatty acids were iso-C15 : 0 (25.3 %), iso-C15 : 1 G (14.6 %), iso-C17 : 0 3-OH (9.3 %), anteiso-C15 : 0 (7.8 %) and iso-C15 : 0 3-OH (7.6 %). The polar lipid profile was composed of phosphatidylethanolamine, one unidentified aminolipid, one unidentified phospholipid, one unidentified aminophospholipid and six unidentified lipids. The major respiratory quinone was menaquinone-6 and the DNA G+C content of the strain was 32.3 mol%. On the basis of phenotypic, phylogenetic and genotypic data, strain F081-2T represents a novel species within the genus Winogradskyella , for which the name Winogradskyella damuponensis sp. nov. is proposed. The type strain is F081-2T ( = KCTC 23552T = JCM 17633T).


2015 ◽  
Vol 65 (Pt_11) ◽  
pp. 3777-3781 ◽  
Author(s):  
Liang Ge ◽  
Qi Zhao ◽  
Hongmei Sheng ◽  
Jianmin Wu ◽  
Lizhe An

A bacterial strain, designated TSBY 57T, was isolated during a study on the phylogenetic diversity of culturable bacteria from alpine permafrost in Tianshan Mountains, China, and was classified by means of a polyphasic taxonomic approach. The novel strain was found to belong to the genus Epilithonimonas and was distinguished from recognized species of this genus. Strain TSBY 57T grew aerobically, at 0–30 °C, with 0–1.5 % (w/v) NaCl and at pH 6–8.Cells were Gram-stain-negative, non-motile, non-spore-forming rods. Compared with the reference strains, the novel strain was psychrotolerant. The predominant fatty acids were summed feature 3 (consisting of C16 : 1ω7c and/or C16 : 1ω6c), anteiso-C15 : 0 and iso-C15 : 0.The sole respiratory quinone was MK-6.Phosphatidylethanolamine was predominant in the polar lipid profile of strain TSBY 57T. These chemotaxonomic traits were in good agreement with the characteristics of the genus Epilithonimonas. On the basis of 16S rRNA gene sequence similarity, strain TSBY 57T was a member of the genus Epilithonimonas and was closely related to Epilithonimonas tenax DSM 16811T (99.0 %), Epilithonimonas ginsengisoli DCY78T (98.6 %) and Epilithonimonas lactis H1T (98.5 %). However, DNA–DNA reassociation values between strain TSBY 57T and E. tenax DSM 16811T, E. ginsengisoli DCY78T and E. lactis H1T were 39.5 ± 2.6, 37.7 ± 1.0 and 37.3 ± 1.1 %, respectively. The G+C content of the DNA was 34.4 ± 0.2 mol%. Based on data from this polyphasic taxonomic study, strain TSBY 57T represents a novel species of the genus Epilithonimonas, for which the name Epilithonimonas psychrotolerans sp. nov. is proposed. The type strain is TSBY 57T ( = NRRL B-51307T = CCTCC AB 207182T).


2021 ◽  
Vol 9 (4) ◽  
pp. 768
Author(s):  
Karel Kopejtka ◽  
Yonghui Zeng ◽  
David Kaftan ◽  
Vadim Selyanin ◽  
Zdenko Gardian ◽  
...  

An aerobic, yellow-pigmented, bacteriochlorophyll a-producing strain, designated AAP5 (=DSM 111157=CCUG 74776), was isolated from the alpine lake Gossenköllesee located in the Tyrolean Alps, Austria. Here, we report its description and polyphasic characterization. Phylogenetic analysis of the 16S rRNA gene showed that strain AAP5 belongs to the bacterial genus Sphingomonas and has the highest pairwise 16S rRNA gene sequence similarity with Sphingomonas glacialis (98.3%), Sphingomonas psychrolutea (96.8%), and Sphingomonas melonis (96.5%). Its genomic DNA G + C content is 65.9%. Further, in silico DNA-DNA hybridization and calculation of the average nucleotide identity speaks for the close phylogenetic relationship of AAP5 and Sphingomonas glacialis. The high percentage (76.2%) of shared orthologous gene clusters between strain AAP5 and Sphingomonas paucimobilis NCTC 11030T, the type species of the genus, supports the classification of the two strains into the same genus. Strain AAP5 was found to contain C18:1ω7c (64.6%) as a predominant fatty acid (>10%) and the polar lipid profile contained phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine, sphingoglycolipid, six unidentified glycolipids, one unidentified phospholipid, and two unidentified lipids. The main respiratory quinone was ubiquinone-10. Strain AAP5 is a facultative photoheterotroph containing type-2 photosynthetic reaction centers and, in addition, contains a xathorhodopsin gene. No CO2-fixation pathways were found.


2011 ◽  
Vol 61 (7) ◽  
pp. 1515-1520 ◽  
Author(s):  
Jaewoo Yoon ◽  
Satoru Matsuda ◽  
Kyoko Adachi ◽  
Hiroaki Kasai ◽  
Akira Yokota

A Gram-negative-staining, obligately aerobic, non-motile, rod-shaped and chemoheterotrophic bacterium, designated strain MN1-1006T, was isolated from an ascidian (sea squirt) sample, and was studied using a polyphasic taxonomic approach. Phylogenetic analyses based on 16S rRNA gene sequences indicated that the new isolate shared approximately 93–99% sequence similarity with recognized species of the genus Rubritalea within the phylum ‘Verrucomicrobia’. DNA–DNA hybridization values between strain MN1-1006T and Rubritalea squalenifaciens HOact23T and Rubritalea sabuli YM29-052T were 57% and 14.5%, respectively. Strain MN1-1006T produced carotenoid compounds that rendered the cell biomass a reddish pink colour. The strain also contained squalene. The cell-wall peptidoglycan of the novel strain contained muramic acid and meso-diaminopimelic acid. The DNA G+C content of strain MN1-1006T was 51.4 mol%. The major cellular fatty acids were iso-C14:0, iso-C16:0 and anteiso-C15:0. The major isoprenoid quinone was MK-9. On the basis of these data, it was concluded that strain MN1-1006T represents a novel species of the genus Rubritalea, for which the name Rubritalea halochordaticola sp. nov. is proposed. The type strain is MN1-1006T ( = KCTC 23186T = NBRC 107102T).


2006 ◽  
Vol 56 (7) ◽  
pp. 1531-1534 ◽  
Author(s):  
Reiji Tanaka ◽  
Satoshi Kawaichi ◽  
Hiroshi Nishimura ◽  
Yoshihiko Sako

A novel thermophilic bacterium, strain KW1T, was isolated from a coastal hydrothermal field on the Satsuma Peninsula, Kagoshima Prefecture, Japan. The variably Gram-stained cells were motile rods with flagella, did not form spores and proliferated at 52–78 °C (optimum, 70 °C), pH 5–8 (optimum, pH 7) and 0–4.5 % NaCl (optimum, 1.0 %). The novel isolate was a strictly aerobic heterotroph that utilized complex proteinaceous substrates as well as a variety of carboxylic acids and amino acids. The G+C content of the genomic DNA was 70.8 mol%. Analysis of 16S rRNA gene sequences indicated that strain KW1T is closely related to Thermaerobacter subterraneus C21T (98.4 % sequence similarity). However, the DNA–DNA hybridization value for strain KW1T and T. subterraneus ATCC BAA-137T was below 46 %. On the basis of the molecular and physiological traits of strain KW1T, it represents a novel species of the genus Thermaerobacter, for which the name Thermaerobacter litoralis sp. nov. is proposed. The type strain is KW1T (=JCM 13210T=DSM 17372T).


2011 ◽  
Vol 61 (8) ◽  
pp. 1899-1905 ◽  
Author(s):  
Tristan Barbeyron ◽  
Yannick Lerat ◽  
Jean-François Sassi ◽  
Sophie Le Panse ◽  
William Helbert ◽  
...  

A rod shaped, Gram-stain-negative, chemo-organotrophic, heterotrophic, strictly aerobic, non-gliding bacterium, designated strain PLRT, was isolated from faeces of the mollusc Aplysia punctata (Mollusca, Gastropoda) that had been fed with green algae belonging to the genus Ulva. The novel strain was able to degrade ulvan, a polysaccharide extracted from green algae (Chlorophyta, Ulvophyceae). The taxonomic position of strain PLRT was investigated by using a polyphasic approach. Strain PLRT was dark orange, oxidase-positive, catalase-positive and grew optimally at 25 °C, at pH 7.5 and in the presence of 2.5 % (w/v) NaCl with an oxidative metabolism using oxygen as the electron acceptor. Nitrate could not be used as the electron acceptor. Strain PLRT had a Chargaff’s coefficient (DNA G+C content) of 35.3 mol%. Phylogenetic analysis based on the sequence of the 16S rRNA gene placed the novel strain in the family Flavobacteriaceae (phylum ‘Bacteroidetes’), within a clade comprising Stenothermobacter spongiae, Nonlabens tegetincola, Sandarakinotalea sediminis, Persicivirga xylanidelens and Persicivirga dokdonensis. The closest neighbours of strain PLRT were P. xylanidelens and P. dokdonensis, sharing 95.2 and 95.5 % 16S rRNA gene sequence similarity, respectively. Phylogenetic inference and differential phenotypic characteristics demonstrated that strain PLRT represents a novel species of the genus Persicivirga, for which the name Persicivirga ulvanivorans sp. nov. is proposed. The type strain is PLRT ( = CIP 110082T = DSM 22727T).


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