scholarly journals Alteromonas ponticola sp. nov., a gammaproteobacterium isolated from seawater

2020 ◽  
Vol 70 (12) ◽  
pp. 6396-6401 ◽  
Author(s):  
Young-Ok Kim ◽  
In-Suk Park ◽  
Sooyeon Park ◽  
Jung-Hoon Yoon

A Gram-stain-negative, aerobic, non-spore-forming, non-motile and ovoid or rod-shaped bacterial strain, MYP5T, was isolated from seawater in Jeju island of South Korea. MYP5T grew optimally at 30–35 °C and in the presence of 2.0 % (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences revealed that MYP5T fell within the clade enclosed by the type strains of species of the genus Alteromonas , clustering with the type strains of Alteromonas confluentis and Alteromonas halophila . MYP5T exhibited the highest 16S rRNA gene sequence similarity value (98.0 %) to the type strain of A. confluentis and similarities of 95.1–97.9 % to the type strains of the other species of the genus Alteromonas . ANI and dDDH values of genomic sequences between MYP5T and the type strains of 22 species of the genus Alteromonas were 66.8–70.5 % and 18.6–27.5 %, respectively. The DNA G+C content of MYP5T, determined from the genome sequence, was 46.1 %. MYP5T contained Q-8 as the predominant ubiquinone and C18 : 1 ω7c, summed feature 3 (C16 : 1 ω7c and/or C16 : 1 ω6c), C16 : 0 and 10-methyl C17 : 0 as the major fatty acids. The major polar lipids of MYP5T were phosphatidylethanolamine and phosphatidylglycerol. Distinguishing phenotypic properties, along with the phylogenetic and genetic distinctiveness, revealed that MYP5T is separated from species of the genus Alteromonas . On the basis of the data presented, MYP5T is considered to represent a novel species of the genus Alteromonas , for which the name Alteromonas ponticola sp. nov. is proposed. The type strain is MYP5T (=KCTC 82144T=NBRC 114354T).

2012 ◽  
Vol 62 (Pt_6) ◽  
pp. 1348-1353 ◽  
Author(s):  
Hui-xian Wu ◽  
Pok Yui Lai ◽  
On On Lee ◽  
Xiao-jian Zhou ◽  
Li Miao ◽  
...  

A novel Gram-negative, aerobic, catalase- and oxidase-positive, non-sporulating, non-motile, rod-shaped bacterium, designated strain UST081027-248T, was isolated from seawater of the Red Sea. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain UST081027-248T fell within the genus Erythrobacter . Levels of 16S rRNA gene sequence similarity between the novel strain and the type strains of Erythrobacter species ranged from 95.3 % (with Erythrobacter gangjinensis ) to 98.2 % (with Erythrobacter citreus ). However, levels of DNA–DNA relatedness between strain UST081027-248T and the type strains of closely related species were below 70 %. Optimal growth of the isolate occurred in the presence of 2.0 % NaCl, at pH 8.0–9.0 and at 28–36 °C. The isolate did not produce bacteriochlorophyll a. The predominant cellular fatty acids were C17 : 1ω6c, summed feature 8 (C18 : 1ω6c and/or C18 : 1ω7c) and C15 : 0 2-OH. The genomic DNA G+C content of strain UST081027-248T was 60.4 mol%. Phenotypic properties and phylogenetic distinctiveness clearly indicated that strain UST081027-248T represents a novel species of the genus Erythrobacter , for which the name Erythrobacter pelagi sp. nov. is proposed. The type strain is UST081027-248T ( = JCM 17468T = NRRL 59511T).


2012 ◽  
Vol 62 (Pt_6) ◽  
pp. 1359-1364 ◽  
Author(s):  
Soo-Young Lee ◽  
Sooyeon Park ◽  
Tae-Kwang Oh ◽  
Jung-Hoon Yoon

A Gram-stain-negative, non-motile, ovoid or rod-shaped bacterial strain, designated L-6T, was isolated from seawater of Baekdo harbour of the East Sea in Korea and its taxonomic position was investigated by using a polyphasic study. Strain L-6T grew optimally at 30 °C, at pH 7.5–8.0 and in the presence of 2 % (w/v) NaCl. In the neighbour-joining phylogenetic tree based on 16S rRNA gene sequences, strain L-6T formed a cluster with the type strain of Celeribacter neptunius at a bootstrap resampling value of 100 %. Strain L-6T exhibited 16S rRNA gene sequence similarity values of 97.7 % to C. neptunius H 14T and of less than 96.2 % to the type strains of other species used in the phylogenetic analysis. The G+C content of the chromosomal DNA of strain L-6T was 60.9 mol%. The predominant ubiquinone found in strain L-6T and C. neptunius CIP 109922T was ubiquinone-10 (Q-10). The predominant fatty acid of strain L-6T and C. neptunius CIP 109922T was C18 : 1ω7c. The major polar lipids of strain L-6T were phosphatidylglycerol, one unidentified aminolipid and one unidentified lipid. The mean level of DNA–DNA relatedness between strain L-6T and C. neptunius CIP 109922T was 17 %. Differential phenotypic properties, together with phylogenetic and genetic distinctiveness, demonstrated that strain L-6T is distinguishable from C. neptunius . On the basis of the data presented, strain L-6T is considered to represent a novel species of the genus Celeribacter , for which the name Celeribacter baekdonensis sp. nov. is proposed. The type strain is L-6T ( = KCTC 23497T  = CCUG 60799T).


2015 ◽  
Vol 65 (Pt_5) ◽  
pp. 1679-1685 ◽  
Author(s):  
Sooyeon Park ◽  
Ji-Min Park ◽  
Yong-Taek Jung ◽  
Kang Hyun Lee ◽  
Jung-Hoon Yoon

A Gram-stain-negative, non-flagellated, non-gliding, aerobic and rod-shaped or ovoid bacterial strain, designated W-BA7T, was isolated from a brown alga reservoir on the South Sea in South Korea. This strain grew optimally at 25 °C, at pH 7.0–8.0 and in the presence of approximately 2.0 % (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain W-BA7T belonged to the genus Polaribacter , clustering coherently with the type strain of Polaribacter sejongensis, showing 99.3 % sequence similarity. Strain W-BA7T exhibited 16S rRNA gene sequence similarity of 93.4–98.6 % to the type strains of the other species of the genus Polaribacter . Strain W-BA7T contained MK-6 as the predominant menaquinone and iso-C15 : 0 3-OH and anteiso-C15 : 0 as the major fatty acids. The major polar lipids of strain W-BA7T were phosphatidylethanolamine, three unidentified lipids, one unidentified glycolipid, one unidentified aminolipid and one unidentified aminophospholipid. The DNA G+C content of strain W-BA7T was 31.9 mol%, and the mean DNA–DNA relatedness with the type strains of four phylogenetically related species of the genus Polaribacter was 12–27 %. Differential phenotypic properties, together with its phylogenetic and genetic distinctiveness, revealed that strain W-BA7T is separated from recognized species of the genus Polaribacter . On the basis of the data presented, strain W-BA7T is considered to represent a novel species of the genus Polaribacter , for which the name Polaribacter undariae sp. nov. is proposed. The type strain is W-BA7T ( = KCTC 42175T = CECT 8670T).


2013 ◽  
Vol 63 (Pt_10) ◽  
pp. 3704-3709 ◽  
Author(s):  
Sooyeon Park ◽  
Jung-Sook Lee ◽  
Keun-chul Lee ◽  
Jung-Hoon Yoon

A Gram-stain-negative, non-flagellated, rod-shaped bacterial strain able to move by gliding, designated WS-MY9T, was isolated from a brown algae reservoir in South Korea. Strain WS-MY9T grew optimally at 25 °C, at pH 7.0–8.0 and in the presence of 2 % (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain WS-MY9T clustered with the type strain of Algibacter lectus with a bootstrap resampling value of 100 %. Strain WS-MY9T exhibited 16S rRNA gene sequence similarity values of 98.5 and 96.7 % to the type strains of A. lectus and Algibacter mikhailovii , respectively, and less than 96.1 % sequence similarity to other members of the family Flavobacteriaceae . Strain WS-MY9T contained MK-6 as the predominant menaquinone and anteiso-C15 : 0, iso-C17 : 0 3-OH, iso-C15 : 1 G and iso-C15 : 0 as the major fatty acids. The major polar lipids of strain WS-MY9T were phosphatidylethanolamine and two unidentified lipids. The DNA G+C content of strain WS-MY9T was 35.0 mol% and its DNA–DNA relatedness value with A. lectus KCTC 12103T was 15 %. The phylogenetic and genetic distinctiveness and differential phenotypic properties revealed that strain WS-MY9T is separate from the two recognized species of the genus Algibacter . On the basis of the data presented, strain WS-MY9T represents a novel species of the genus Algibacter , for which the name Algibacter undariae sp. nov. is proposed. The type strain is WS-MY9T ( = KCTC 32259T = CCUG 63684T).


2014 ◽  
Vol 64 (Pt_11) ◽  
pp. 3717-3723 ◽  
Author(s):  
Yong-Taek Jung ◽  
Sooyeon Park ◽  
Ji-Min Park ◽  
Jung-Hoon Yoon

A Gram-reaction-negative, aerobic, non-flagellated and coccoid, ovoid or rod-shaped bacterial strain, designated W-SW2T, was isolated from seawater in the South Sea of South Korea. The novel strain grew optimally at pH 7.0–8.0, at 25 °C and in the presence of approximately 2 % (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences revealed that strain W-SW2T fell within the clade comprising the type strains of species of the genus Loktanella , clustering and sharing the highest sequence similarity value (96.3 %) with the type strain of Loktanella koreensis . The 16S rRNA gene sequence similarity values between strain W-SW2T and the type strains of the other species of the genus Loktanella were in the range 93.1–96.0 %. The DNA G+C content of strain W-SW2T was 55.9 mol%. Strain W-SW2T contained Q-10 as the predominant ubiquinone and C18 : 1ω7c as the predominant fatty acid. The major polar lipids were phosphatidylcholine, phosphatidylglycerol, one unidentified aminolipid and one unidentified lipid. Differential phenotypic properties, together with the phylogenetic distinctiveness, revealed that strain W-SW2T is separated phylogenetically from other species of the genus Loktanella . On the basis of the data presented, strain W-SW2T is considered to represent a novel species of the genus Loktanella , for which the name Loktanella ponticola sp. nov. is proposed. The type strain is W-SW2T ( = KCTC 42133T = NBRC 110409T).


2014 ◽  
Vol 64 (Pt_12) ◽  
pp. 3970-3975 ◽  
Author(s):  
Young-Ok Kim ◽  
Sooyeon Park ◽  
Bo-Hye Nam ◽  
Chu Lee ◽  
Ja-Min Park ◽  
...  

A Gram-stain-negative, aerobic, non-motile and coccoid, ovoid or rod-shaped bacterial strain, designated RSS1-M3T, was isolated from a golden sea squirt (Halocynthia aurantium) collected from the East Sea, South Korea. Strain RSS1-M3T grew optimally at 30 °C, at pH 7.0–8.0 and in presence of 2.0 % (w/v) NaCl. Strain RSS1-M3T exhibited the highest 16S rRNA gene sequence similarity (96.55 %) to the type strain of Pelagicola litoralis . Neighbour-joining and maximum-likelihood phylogenetic trees based on 16S rRNA gene sequences revealed that strain RSS1-M3T clustered with the type strains, or proposed type strains, of Planktotalea frisia , Pacificibacter maritimus , Roseovarius marinus and Halocynthiibacter namhaensis , showing sequence similarity of 94.88–96.32 %. Strain RSS1-M3T contained Q-10 as the predominant ubiquinone and C18 : 1ω7c and C16 : 0 as the major fatty acids. The polar lipid profile of strain RSS1-M3T, containing phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine, diphosphatidylglycerol, one unidentified aminolipid and one unidentified lipid as major components, could be distinguished from those of the phylogenetically related genera. The DNA G+C content of strain RSS1-M3T was 55.8 mol%. On the basis of the phylogenetic, chemotaxonomic and phenotypic properties, strain RSS1-M3T is considered to represent a novel species of a new genus within the class Alphaproteobacteria , for which the name Ascidiaceihabitans donghaensis gen. nov., sp. nov. is proposed. The type strain is RSS1-M3T ( = KCTC 42118T = CECT 8599T).


2013 ◽  
Vol 63 (Pt_9) ◽  
pp. 3487-3493 ◽  
Author(s):  
Stefanie P. Glaeser ◽  
Harald Galatis ◽  
Karin Martin ◽  
Peter Kämpfer

Two Gram-negative, rod-shaped bacteria, strains E96T and E90T, were isolated from medicinal leeches (Hirudo verbana) and characterized by a polyphasic taxonomic approach. Phylogenetic analysis based on the nearly full-length 16S rRNA gene sequence showed that the two strains shared 98.1 % sequence similarity and were affiliated with the genus Niabella within the phylum Bacteroidetes , with 94.4–97.6 % sequence similarity to type strains of species of the genus Niabella and highest sequence similarity to the type strain of Niabella aurantiaca (97.3 and 97.6 %, respectively). Niabella -related 16S rRNA gene sequences were recently detected in the bladders of Hirudo verbana; however, no cultured representatives were so far available. Genomic fingerprint analysis using repetitive element primed (rep)- and randomly amplified polymorphic DNA (RAPD)-PCRs and DNA–DNA hybridization experiments clearly showed that the strains were different from each other (DNA–DNA relatedness values of 39.1 %, reciprocal 28.0 %) and from the type strains of N. aurantiaca (<19.7 %) and Niabella tibetensis (<41.1 %). Chemotaxonomic analyses confirmed the affiliation to the genus Niabella . Both strains contained MK-7 as the predominant menaquinone. The major fatty acids of both strains were iso-C15 : 0, iso-C15 : 1 G, iso-C17 : 0 3-OH and summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH), which is characteristic for the genus Niabella . Based on genotypic, chemotaxonomic and physiological characterization, we propose two novel species of the genus Niabella , Niabella hirudinis sp. nov., with strain E96T ( = DSM 25812T = CCM 8411T = LMG 26956T) as the type strain, and Niabella drilacis sp. nov., with strain E90T ( = DSM 25811T = CCM 8410T = LMG 26954T) as the type strain.


2013 ◽  
Vol 63 (Pt_11) ◽  
pp. 4113-4117 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
Sooyeon Park ◽  
Yong-Taek Jung ◽  
Jung-Sook Lee ◽  
Keun-Chul Lee

A Gram-stain-negative, aerobic, motile and rod-shaped bacterial strain, designated WT-RY4T, was isolated from wood falls in the South Sea, South Korea, and its taxonomic position was investigated using a polyphasic approach. Strain WT-RY4T grew optimally at 25 °C, at pH 7.0–7.5 and in the absence of NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain WT-RY4T clustered with the type strain of Paraperlucidibaca baekdonensis with a bootstrap resampling value of 100 %. Strain WT-RY4T exhibited 16S rRNA gene sequence similarity values of 98.8 % and 96.3 % to Paraperlucidibaca baekdonensis RL-2T and Perlucidibaca piscinae IMCC 1704T, respectively and less than 91.5 % to the type strains of other species used in the phylogenetic analysis. The DNA G+C content of strain WT-RY4T was 52.4 mol% and the mean DNA–DNA relatedness value with Paraperlucidibaca baekdonensis RL-2T was 25 %. Strain WT-RY4T contained Q-11 as the predominant ubiquinone and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c), C16 : 0 and C12 : 0 3-OH as the major fatty acids. Differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, demonstrated that strain WT-RY4T was distinguishable from Paraperlucidibaca baekdonensis RL-2T. On the basis of the data presented, strain WT-RY4T is considered to represent a novel species of the genus Paraperlucidibaca , for which the name Paraperlucidibaca wandonensis sp. nov. is proposed. The type strain is WT-RY4T ( = KCTC 32216T = CCUG 63419T). An emended description of the genus Paraperlucidibaca is also provided.


2014 ◽  
Vol 64 (Pt_11) ◽  
pp. 3676-3682 ◽  
Author(s):  
Sooyeon Park ◽  
Yong-Taek Jung ◽  
Chul-Hyung Kang ◽  
Ja-Min Park ◽  
Jung-Hoon Yoon

A Gram-stain-negative, aerobic, non-flagellated and rod-shaped or ovoid bacterial strain, designated GJSW-36T, was isolated from seawater at Geoje island in the South Sea, South Korea. Strain GJSW-36T grew optimally at pH 7.0–8.0, at 25 °C and in the presence of 2 % (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain GJSW-36T fell within the clade comprising the type strains of species of the genus Thalassotalea and Thalassomonas fusca . Strain GJSW-36T exhibited 16S rRNA gene sequence similarity values of 94.2–96.0 % to the type strains of species of the genus Thalassotalea and Thalassomonas fusca and of 93.8–94.5 % to the type strains of the other species of the genus Thalassomonas . Strain GJSW-36T contained ubiquinone-8 (Q-8) as the predominant ubiquinone and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c), C17 : 1ω8c and C16 : 0 as the major fatty acids. The major polar lipids of strain GJSW-36T were phosphatidylglycerol and phosphatidylethanolamine. The DNA G+C content of strain GJSW-36T was 45.1 mol%. Differential phenotypic properties, together with the phylogenetic distinctiveness, demonstrated that strain GJSW-36T is separated from species of the genus Thalassotalea and Thalassomonas fusca . On the basis of the data presented, strain GJSW-36T is considered to represent a novel species of the genus Thalassotalea , for which the name Thalassotalea ponticola sp. nov. is proposed. The type strain is GJSW-36T ( = KCTC 42155T = CECT 8656T). From this study, it is also proposed that Thalassomonas fusca should be reclassified as a member of the genus Thalassotalea and the description of the genus Thalassotalea is emended.


2014 ◽  
Vol 64 (Pt_11) ◽  
pp. 3810-3815 ◽  
Author(s):  
Sooyeon Park ◽  
Ji-Min Park ◽  
Doo-Sang Park ◽  
Jung-Hoon Yoon

A Gram-stain-negative, aerobic, non-motile and coccoid, ovoid or rod-shaped bacterial strain, designated GJSW-31T, was isolated from seawater from the South Sea, South Korea. The novel strain grew optimally at 30 °C, at pH 7.0–8.0 and in the presence of 2.0 % (w/v) NaCl. Phylogenetic trees, based on 16S rRNA gene sequences, revealed that strain GJSW-31T clustered with the type strains of species of the genus Litoreibacter . Strain GJSW-31T exhibited 16S rRNA gene sequence similarity values of 95.2–98.5 % to the type strains of species of the genus Litoreibacter and sequence similarities of less than 96.18 % to type strains of the other species with validly published names. Strain GJSW-31T contained Q-10 as the predominant ubiquinone and C18 : 1ω7c as the major fatty acid. The major polar lipids of strain GJSW-31T were phosphatidylcholine, phosphatidylglycerol, one unidentified lipid and one unidentified aminolipid. The DNA G+C content of strain GJSW-31T was 62.5 mol% and its DNA–DNA relatedness values with the type strains of Litoreibacter albidus , Litoreibacter janthinus , Litoreibacter meonggei and Litoreibacter ascidiaceicola were 13–23 %. The differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain GJSW-31T is separate from other species of the genus Litoreibacter . On the basis of the data presented, strain GJSW-31T is considered to represent a novel species of the genus Litoreibacter , for which the name Litoreibacter ponti sp. nov. is proposed. The type strain is GJSW-31T ( = KCTC 42114T = NBRC 110379T).


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