scholarly journals Altererythrobacter insulae sp. nov., a lipolytic bacterium isolated from a tidal flat

2019 ◽  
Vol 69 (4) ◽  
pp. 1009-1015 ◽  
Author(s):  
Sooyeon Park ◽  
Ji-Min Park ◽  
Tae-Kwang Oh ◽  
Jung-Hoon Yoon

A lipolytic, Gram-stain-negative, aerobic, non-motile and coccoid, ovoid or rod-shaped bacterial strain, designated BPTF-M16T, was isolated from tidal flat sediment on the Yellow Sea in the Republic of Korea. Strain BPTF-M16T grew optimally at 30 °C and in the presence of 2.0–3.0 % (w/v) NaCl. A phylogenetic tree of 16S rRNA gene sequences showed that strain BPTF-M16T fell within the clade comprising the type strains of Altererythrobacter species. Strain BPTF-M16T exhibited 16S rRNA gene sequence similarity values of 98.0 and 97.1 % to the type strains of Altererythrobacter ishigakiensis and A ltererythrobacter marinus , respectively, and of less than 97.0 % to the type strains of the other recognized species. Strain BPTF-M16T contained Q-10 as the predominant ubiquinone and C18 : 1 ω7c as the major fatty acid. The major polar lipids detected in strain BPTF-M16T were phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol, sphingoglycolipid and one unidentified glycolipid. Mean DNA–DNA relatedness values of strain BPTF-M16T with the type strains of A. ishigakiensis and A. marinus were 22 and 13 %, respectively. The average nucleotide identity value between strain BPTF-M16T and the type strain of A. ishigakiensis was 76.80 %. Differential phenotypic properties, together with the phylogenetic and genetic data, revealed that strain BPTF-M16T is separated from recognized Altererythrobacter species. On the basis of the data presented here, strain BPTF-M16T is considered to represent a novel species of the genus Altererythrobacter , for which the name Altererythrobacter insulae sp. nov. is proposed. The type strain is BPTF-M16T (=KCTC 62421T=KACC 19609T=NBRC 113190T).

2020 ◽  
Vol 70 (12) ◽  
pp. 6301-6306
Author(s):  
Sooyeon Park ◽  
Seo Yeon Lee ◽  
Wonyong Kim ◽  
Jung-Hoon Yoon

A Gram-stain-negative, aerobic, non-spore-forming, motile by single polar flagellum and ovoid or rod-shaped bacterial strain, designated JBTF-M23T, was isolated from tidal flat sediment collected from the Yellow Sea, Republic of Korea. Neighbour-joining phylogenetic tree of 16S rRNA gene sequences showed that strain JBTF-M23T fell within the clade comprising the type strains of Pseudoalteromonas species, clustering with the type strains of P. byunsanensis and P. amylolytica . Strain JBTF-M23T exhibited the highest 16S rRNA gene sequence similarity value (98.6 %) to the type strain of P. rubra and sequence similarities of 98.3 and 97.7 % to the type strains of P. byunsanensis and P. amylolytica, respectively. The DNA G+C content of strain JBTF-M23T from genomic sequence data was 41.98 %. The ANI and dDDH values between strain JBTF-M23T and the type strains of P. rubra , P. byunsanensis and P. amylolytica were 71.3–76.6 and 19.4–19.9 %, respectively. Strain JBTF-M23T contained Q-8 as the predominant ubiquinone and C16 : 1  ω7c and/or C16 : 1  ω6c, C16 : 0 and C18 : 1  ω7c as the major fatty acids. The major polar lipids of strain JBTF-M23T were phosphatidylethanolamine and one unidentified aminolipid. Distinguished phenotypic properties, along with the phylogenetic and genetic distinctiveness, revealed that strain JBTF-M23T is separated from recognized Pseudoalteromonas species. On the basis of the data presented, strain JBTF-M23Tis considered to represent a novel species of the genus Pseudoalteromonas , for which the name Pseudoalteromonas caenipelagi sp. nov. is proposed. The type strain is JBTF-M23T(=KACC 19900T=NBRC 113647T).


2014 ◽  
Vol 64 (Pt_6) ◽  
pp. 1841-1846 ◽  
Author(s):  
Sooyeon Park ◽  
Ji-Min Park ◽  
Chul-Hyung Kang ◽  
Jung-Hoon Yoon

A Gram-stain-negative, non-motile, aerobic, curved-to-spiral-rod-shaped bacterium, designated AH-MY2T, was isolated from a tidal flat on Aphae island in the sea to the south-west of South Korea, and its taxonomic position was investigated using a polyphasic taxonomic approach. Strain AH-MY2T grew optimally at 30 °C, at pH 7.0–8.0 and in the presence of 2.0 % (w/v) NaCl. Neighbour-joining, maximum-likelihood and maximum-parsimony phylogenetic trees based on 16S rRNA gene sequences showed that strain AH-MY2T clustered with the type strain of Terasakiella pusilla and that this cluster joined the clade comprising the type strains of species of the genus Thalassospira . Strain AH-MY2T exhibited 16S rRNA gene sequence similarity values of 90.6 % to the type strain of Terasakiella pusilla and of less than 91.0 % to the type strains of other species with validly published names. Strain AH-MY2T contained Q-10 as the predominant ubiquinone and C18 : 1ω7c as the major fatty acid. The major polar lipids detected in strain AH-MY2T were phosphatidylglycerol, phosphatidylethanolamine, two unidentified aminolipids and one unidentified glycolipid. The DNA G+C content of strain AH-MY2T was 56.0 mol%. The phylogenetic data and differential chemotaxonomic and other phenotypic properties revealed that strain AH-MY2T represented a novel genus and species within the family Rhodospirillaceae of the class Alphaproteobacteria , for which the name Aestuariispira insulae gen. nov., sp. nov. is proposed. The type strain of Aestuariispira insulae is AH-MY2T ( = KCTC 32577T = CECT 8488T).


2020 ◽  
Vol 70 (6) ◽  
pp. 3872-3877 ◽  
Author(s):  
Sooyeon Park ◽  
In Kyu Kim ◽  
Wonyong Kim ◽  
Jung-Hoon Yoon

A Gram-stain-negative, aerobic, non-spore-forming, motile by single polar flagellum and ovoid or rod-shaped bacterial strain, designated JBTF-M18T, was isolated from tidal-flat sediment collected from the Yellow Sea, Republic of Korea. The neighbour-joining phylogenetic tree of 16S rRNA gene sequences showed that strain JBTF-M18T fell within the clade comprising the type strains of Shewanella species. Strain JBTF-M18T exhibited 16S rRNA gene sequence similarity values of 97.1–98.8 % to the type strains of S. loihica , S. aquimarina , S. waksmanii and S. marisflavi and of less than 96.9 % to the type strains of the other Shewanella species. The average nucleotide identity and digital DNA–DNA hybridization values between strain JBTF-M18T and the type strains of S. waksmanii and S. loihica were 72.0 and 89.5% and 18.9 and 38.1 %, respectively. DNA–DNA relatedness values between strain JBTF-M18T and the type strains of S. aquimarina and S. marisflavi were 14 and 19 %, respectively. The DNA G+C content of strain JBTF-M18T from genomic sequence data was 52.9 %. Strain JBTF-M18Tcontained MK-6 as the predominant menaquinone and Q-7 and Q-8 as the predominant ubiquinones. It had iso-C15 : 0, summed feature 3 (C16 : 1  ω7c and/or C16 : 1  ω6c) and C16 : 0 as the major fatty acids. The major polar lipids of strain JBTF-M18T were phosphatidylethanolamine and phosphatidylglycerol. Distinguished phenotypic properties, along with the phylogenetic and genetic distinctiveness, revealed that strain JBTF-M18T is separated from recognized Shewanella species. On the basis of the data presented, strain JBTF-M18T is considered to represent a novel species of the genus Shewanella , for which the name Shewanella insulae sp. nov. is proposed. The type strain is JBTF-M18T (=KACC 19869T=NBRC 113583T).


Author(s):  
Sooyeon Park ◽  
Jung-Hoon Yoon

A Gram-stain-negative, aerobic, non-flagellated, coccoid, ovoid or rod-shaped bacterial strain, TSTF-M16T, was isolated from a tidal flat on the Yellow Sea, Republic of Korea. The neighbour-joining phylogenetic tree of 16S rRNA gene sequences showed that strain TSTF-M16T fell within a clade comprising the type strains of Sulfitobacter species. Strain TSTF-M16T exhibited 16S rRNA gene sequence similarities of 98.5 and 98.1 % to the type strains of Sulfitobacter mediterraneus and Sulfitobacter sabulilitoris , respectively, and 96.2–97.8 % to the type strains of the other Sulfitobacter species. The average nucleotide identity and digital DNA–DNA hybridization values between the genomic sequences of strain TSTF-M16T and the type strains of 16 Sulfitobacter species were 70.6–74.2 and 17.9–19.0 %, respectively. The DNA G+C content of strain TSTF-M16T from genomic sequence data was 59.26 mol%. Strain TSTF-M16T contained Q-10 as the predominant ubiquinone and C18 : 1  ω7c as the major fatty acid. The major polar lipids of strain TSTF-M16T were phosphatidylcholine, phosphatidylglycerol, one unidentified aminolipid and one unidentified lipid. Distinguished phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain TSTF-M16T is separated from recognized Sulfitobacter species. On the basis of the data presented here, strain TSTF-M16T is considered to represent a novel species of the genus Sulfitobacter , for which the name Sulfitobacter aestuariivivens sp. nov. is proposed. The type strain is TSTF-M16T (=KACC 21645T=NBRC 114501T).


2020 ◽  
Vol 70 (3) ◽  
pp. 1470-1477 ◽  
Author(s):  
Sooyeon Park ◽  
Siyu Chen ◽  
Jung-Hoon Yoon

A Gram-staining-negative, aerobic, non-motile and coccoid, ovoid or rod-shaped bacterial strain, designated as JBTF-M21T, was isolated from a tidal flat sediment on the Yellow Sea, Republic of Korea. The neighbour-joining phylogenetic tree based on 16S rRNA gene sequences indicated that JBTF-M21T fell within the clade comprising the type strains of species of the genus Erythrobacter . JBTF-M21T exhibited 16S rRNA gene sequence similarities of 97.0–98.4 % to the type strains of Erythrobacter longus , Erythrobacter aquimaris , Erythrobacter nanhaisediminis , Erythrobacter vulgaris , Erythrobacter seohaensis , Erythrobacter litoralis and Erythrobacter citreus and 93.7–96.6 % to the type strains of the other species of the genus Erythrobacter . The ANI and dDDH values between JBTF-M21T and the type strains of E. longus , E. nanhaisediminis , E. seohaensis and E. litoralis were 70.83–72.93 % and 18.0–18.8 %, respectively. Mean DNA–DNA relatedness values between JBTF-M21T and the type strains of E. aquimaris , E. vulgaris and E. citreus were 12–24 %. The DNA G+C content of JBTF-M21T was 57.0 mol%. JBTF-M21T contained Q-10 as the predominant ubiquinone and C18 : 1ω7c and C17 : 1ω6c as the major fatty acids. The major polar lipids ofJBTF-M21T were phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol and sphingoglycolipid. Distinguishing phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that JBTF-M21T is separated from species of the genus Erythrobacter with validly published names. On the basis of the data presented, strain JBTF-M21T is considered to represent a novel species of the genus Erythrobacter , for which the name Erythrobacter insulae sp. nov. is proposed. The type strain is JBTF-M21T (=KACC 19864T=NBRC 113584T).


2013 ◽  
Vol 63 (Pt_9) ◽  
pp. 3186-3191 ◽  
Author(s):  
Yong-Taek Jung ◽  
Jung-Sook Lee ◽  
Jung-Hoon Yoon

A Gram-staining-negative, aerobic, non-flagellated, non-gliding and rod-shaped bacterial strain, HD-3T, was isolated from a tidal flat sediment of Hwangdo in the Yellow Sea, South Korea. Strain HD-3T grew optimally at pH 7.0–8.0, at 30 °C and in the presence of 2–3 % (w/v) NaCl. Phylogenetic trees based on 16S rRNA gene sequences revealed that strain HD-3T joined the cluster comprising the type strains of Jejuia pallidilutea and Hyunsoonleella jejuensis . Strain HD-3T exhibited 16S rRNA gene sequence similarity values of 93.8 % to each of the type strains of J. pallidilutea and Hyunsoonleella jejuensis . Strain HD-3T contained MK-6 as the only menaquinone and iso-C15 : 0, iso-C15 : 1 G, iso-C17 : 0 3-OH and iso-C15 : 0 3-OH as the major fatty acids. The polar lipid profile of strain HD-3T, which contained phosphatidylethanolamine and one unidentified lipid as major components and one unidentified phospholipid as a significant component, differed slightly from those of the type strains of J. pallidilutea and Hyunsoonleella jejuensis . The DNA G+C content of strain HD-3T was 42.3 mol%. Differential phenotypic and chemotaxonomic properties and phylogenetic data of strain HD-3T demonstrated that this strain is distinguishable from J. pallidilutea and Hyunsoonleella jejuensis . On the basis of the data presented, strain HD-3T is considered to represent a novel genus and species, for which the name Hwangdonia seohaensis gen. nov., sp. nov. is proposed. The type strain is HD-3T ( = KCTC 32177T = CCUG 63246T).


2015 ◽  
Vol 65 (Pt_6) ◽  
pp. 1819-1824 ◽  
Author(s):  
Sooyeon Park ◽  
Ji-Min Park ◽  
Chul-Hyung Kang ◽  
Song-Gun Kim ◽  
Jung-Hoon Yoon

A Gram-stain-negative, non-motile, aerobic and pleomorphic bacterium, designated BS-W13T, was isolated from a tidal flat on the South Sea, South Korea, and its taxonomic position was investigated using a polyphasic approach. Strain BS-W13T grew optimally at 25 °C, at pH 7.0–8.0 and in the presence of 1.0–2.0 % (w/v) NaCl. Neighbour-joining and maximum-parsimony phylogenetic trees based on 16S rRNA gene sequences showed that strain BS-W13T clustered with the type strain of Seohaeicola saemankumensis , showing the highest sequence similarity (95.96 %) to this strain. Strain BS-W13T exhibited 16S rRNA gene sequence similarity values of 95.95, 95.91, 95.72 and 95.68 % to the type strains of Sulfitobacter donghicola , Sulfitobacter porphyrae , Sulfitobacter mediterraneus and Roseobacter litoralis , respectively. Strain BS-W13T contained Q-10 as the predominant ubiquinone and C18 : 1ω7c as the major fatty acid. The polar lipid profile of strain BS-W13T, containing phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine, one unidentified aminolipid and one unidentified lipid as major components, was distinguishable from those of some phylogenetically related taxa. The DNA G+C content of strain BS-W13T was 58.1 mol%. The phylogenetic data and differential chemotaxonomic and other phenotypic properties revealed that strain BS-W13T constitutes a novel genus and species within family Rhodobacteraceae of the class Alphaproteobacteria , for which the name Pseudoseohaeicola caenipelagi gen. nov., sp. nov. is proposed. The type strain is BS-W13T ( = KCTC 42349T = CECT 8724T).


2014 ◽  
Vol 64 (Pt_6) ◽  
pp. 1876-1881 ◽  
Author(s):  
Sooyeon Park ◽  
Sung-Min Won ◽  
Doo-Sang Park ◽  
Jung-Hoon Yoon

A Gram-stain-negative, non-motile, rod-shaped bacterial strain, AH-M5T, which was isolated from a tidal flat sediment at Aphae Island in South Korea, was characterized taxonomically. Strain AH-M5T grew optimally at 25 °C, at pH 7.0–8.0 and in presence of 2.0 % (w/v) NaCl. Phylogenetic trees based on 16S rRNA gene sequences revealed that strain AH-M5T clustered coherently with the type strains of Mangrovimonas yunxiaonensis and Meridianimaribacter flavus , showing 93.4–94.3 % sequence similarity. The novel strain exhibited 16S rRNA gene sequence similarity values of less than 93.4 % to the type strains of other recognized species. Strain AH-M5T contained MK-6 as the predominant menaquinone and iso-C15 : 1 G, iso-C15 : 0, iso-C17 : 0 3-OH and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c) as the major fatty acids. The polar lipid profile of strain AH-M5T containing phosphatidylethanolamine and one unidentified lipid as major components was differentiated from those of the type strains of Mangrovimonas yunxiaonensis and Meridianimaribacter flavus . The DNA G+C content of strain AH-M5T was 34.8 mol%. Differential phenotypic properties, together with the phylogenetic and chemotaxonomic data, demonstrated that strain AH-M5T is distinguished from Mangrovimonas yunxiaonensis and Meridianimaribacter flavus . On the basis of the data presented, strain AH-M5T is considered to represent a novel genus and species within the family Flavobacteriaceae , for which the name Seonamhaeicola aphaedonensis gen. nov., sp. nov. is proposed. The type strain of the type species is AH-M5T ( = KCTC 32578T = CECT 8487T).


2013 ◽  
Vol 63 (Pt_6) ◽  
pp. 2234-2238 ◽  
Author(s):  
Ahyoung Choi ◽  
Jang-Cheon Cho

Gram-negative strains, motile by a single polar flagellum, non-pigmented and with a curved rod-shaped morphology, designated IMCC1826T and IMCC1883, were isolated from a surface seawater sample from the Yellow Sea. The two strains shared 99.9 % 16S rRNA gene sequence similarity and showed 92 % DNA–DNA relatedness, suggesting that they belonged to the same genomic species. Phylogenetic analysis based on 16S rRNA gene sequences showed that the two isolates were related most closely to the type strain of Thalassolituus oleivorans with a sequence similarity of 96.4 % and formed a robust phyletic lineage with T. oleivorans . DNA–DNA relatedness between the two strains and T. oleivorans DSM 14913T was 8.7–11.6 %. A putative alkane hydroxylase (alkB) gene was detected in strain IMCC1826T by PCR, but the amino acid sequence of the gene was distantly related to that of the AlkB homologue of T. oleivorans DSM 14913T. As expected from the presence of the alkB gene, the new strains utilized n-tetradecane and n-hexadecane as a carbon source. The DNA G+C content was 54.6–56.0 mol% and the main isoprenoid quinone detected was Q-9. Polar lipids of strain IMCC1826T included diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and amino-group-containing lipids. On the basis of taxonomic data obtained in this study, strains IMCC1826T and IMCC1883 represent a novel species of the genus Thalassolituus , for which the name Thalassolituus marinus sp. nov. is proposed, with IMCC1826T ( = KCTC 23084T = NBRC 107590T) as the type strain.


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).


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