scholarly journals Aestuariivivens insulae gen. nov., sp. nov., isolated from a tidal flat

2015 ◽  
Vol 65 (Pt_6) ◽  
pp. 1883-1888 ◽  
Author(s):  
Sooyeon Park ◽  
Ji-Min Park ◽  
Chul-Hyung Kang ◽  
Jung-Hoon Yoon

A Gram-stain-negative, non-motile, aerobic, ovoid or rod-shaped bacterium, designated AH-MY3T, was isolated from a tidal flat on Aphae island of the south-western sea, South Korea, and subjected to a polyphasic taxonomic study. Strain AH-MY3T grew optimally at 35 °C, at pH 7.0–8.0 and in the presence of 2.0–3.0  % (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain AH-MY3T joined the cluster comprising the type strains of Yeosuana aromativorans, Snuella lapsa and Meridianimaribacter flavus, showing sequence similarities of 93.9, 93.7 and 92.6  %, respectively. Strain AH-MY3T exhibited 16S rRNA gene sequence similarity values of 94.0–94.7  % to the type strains of ‘Aestuariibaculum scopimerae’, Winogradskyella aquimaris, Winogradskyella poriferorum and Gaetbulibacter aestuarii. Strain AH-MY3T contained MK-6 as the predominant menaquinone. The fatty acid and polar lipid profiles of strain AH-MY3T could be distinguished from those of the type strains of phylogenetically related taxa. The DNA G+C content of strain AH-MY3T was 37 mol%. The phylogenetic data and differential chemotaxonomic and other phenotypic properties revealed that strain AH-MY3T represents a novel genus and species within the family Flavobacteriaceae, for which the name Aestuariivivens insulae gen. nov., sp. nov. is proposed. The type strain of Aestuariivivens insulae is AH-MY3T ( = KCTC 42350T = NBRC 110723T).

Author(s):  
Sooyeon Park ◽  
Jung-Sook Lee ◽  
Wonyong Kim ◽  
Jung-Hoon Yoon

Two Gram-stain-negative and non-flagellated bacteria, YSTF-M3T and YSTF-M6T, were isolated from a tidal flat from Yellow Sea, Republic of Korea, and subjected to a polyphasic taxonomic study. Neighbour-joining phylogenetic tree of 16S rRNA gene sequences showed that strains YSTF-M3T and YSTF-M6T belong to the genera Kordia and Olleya of the family Flavobacteriaceae , respectively. The 16S rRNA gene sequence similarities between strain YSTF-M3T and the type strains of Kordia species and between strain YSTF-M6T and the type strains of Olleya species were 94.1–98.4 and 97.3–98.3 %, respectively. The ANI and dDDH values between genomic sequences of strain YSTF-M3T and the type strains of five Kordia species and between those of strain YSTF-M6T and the type strains of three Olleya species were in ranges of 77.0–83.2 and 20.7–27.1 % and 79.4–81.5 and 22.3–23.9 %, respectively. The DNA G+C contents of strain YSTF-M3T and YSTF-M6T from genomic sequences were 34.1 and 31.1 %, respectively. Both strains contained MK-6 as predominant menaquinone and phosphatidylethanolamine as only major phospholipid identified. Differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strains YSTF-M3T and YSTF-M6T are separated from recognized species of the genera Kordia and Olleya , respectively. On the basis of the data presented, strains YSTF-M3T (=KACC 21639T=NBRC 114499T) and YSTF-M6T (=KACC 21640T=NBRC 114500T) are considered to represent novel species of the genera Kordia and Olleya , respectively, for which the names Kordia aestuariivivens sp. nov. and Olleya sediminilitoris sp. nov. are proposed.


2020 ◽  
Vol 367 (9) ◽  
Author(s):  
Sooyeon Park ◽  
Siyu Chen ◽  
Jung-Sook Lee ◽  
Wonyong Kim ◽  
Jung-Hoon Yoon

ABSTRACT A Gram-stain-negative bacterial strain, JBTF-M27T, was isolated from a tidal flat from Yellow Sea, Republic of Korea. Neighbor-joining phylogenetic tree of 16S rRNA gene sequences showed that strain JBTF-M27T fell within the clade comprising the type strains of Sulfitobacter species. Strain JBTF-M27T exhibited the highest 16S rRNA gene sequence similarity (98.8%) to the type strain of S. porphyrae. Genomic ANI and dDDH values of strain JBTF-M27T between the type strains of Sulfitobacter species were less than 76.1 and 19.2%, respectively. Mean DNA-DNA relatedness value between strain JBTF-M27T and the type strain of S. porphyrae was 21%. DNA G + C content of strain JBTF-M27T from genome sequence was 57.8% (genomic analysis). Strain JBTF-M27T contained Q-10 as the predominant ubiquinone and C18:1ω7c as the major fatty acid. The major polar lipids of strain JBTF-M27T were phosphatidylcholine, phosphatidylglycerol and one unidentified aminolipid. Distinguished phenotypic properties, along with the phylogenetic and genetic distinctiveness, revealed that strain JBTF-M27T is separated from recognized Sulfitobacter species. On the basis of the data presented, strain JBTF-M27T ( = KACC 21648T = NBRC 114356T) is considered to represent a novel species of the genus Sulfitobacter, for which the name Sulfitobacter sediminilitoris sp. nov. is proposed.


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).


2015 ◽  
Vol 65 (Pt_1) ◽  
pp. 141-146 ◽  
Author(s):  
Sooyeon Park ◽  
Ji-Min Park ◽  
Chul-Hyung Kang ◽  
Jung-Hoon Yoon

A Gram-stain-negative, flagellated, aerobic and rod-shaped or ovoid bacterial strain, designated HJTF-7T, was isolated from a tidal flat on the South Sea of South Korea, and its taxonomic position was investigated using a polyphasic approach. Strain HJTF-7T grew optimally at 25 °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 HJTF-7T joined the cluster comprising the type strains of species of the genera Spongiibacter and Zhongshania . Strain HJTF-7T exhibited 16S rRNA gene sequence similarities of 90.4–92.5 % to the type strains of species of the genera Spongiibacter and Zhongshania and of less than 91.5 % to the type strains of other recognized species. Strain HJTF-7T contained Q-8 as the predominant ubiquinone. The major fatty acids were iso-C17 : 1ω9c, iso-C15 : 0, iso-C17 : 0, iso-C11 : 0 3-OH and C17 : 1ω8c and the major polar lipids were phosphatidylethanolamine and phosphatidylglycerol. The fatty acid and polar lipid profiles of strain HJTF-7T were distinct from those of members of the genera Spongiibacter and Zhongshania . The DNA G+C content of strain HJTF-7T was 55.9 mol%. The phylogenetic data and differential chemotaxonomic and other phenotypic properties revealed that strain HJTF-7T represents a novel genus and species within the class Gammaproteobacteria , for which the name Litorivivens lipolytica gen. nov., sp. nov. is proposed. The type strain of Litorivivens lipolytica is HJTF-7T ( = KCTC 42157T = CECT 8654T).


2015 ◽  
Vol 65 (Pt_10) ◽  
pp. 3439-3446 ◽  
Author(s):  
Yong-Taek Jung ◽  
Jung-Sook Lee ◽  
Jung-Hoon Yoon

A Gram-strain-negative, coccoid or oval-shaped, non-motile bacterial strain, designated MDM-1T, was isolated from a tidal-flat sediment on the Korean peninsula. Strain MDM-1T was found to grow optimally at pH 7.0–8.0, at 30 °C and in the presence of 2–3 % (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain MDM-1T falls within the clade comprising species of the genus Algoriphagus, clustering with the type strains of Algoriphagus halophilus, A. lutimaris, A. chungangensis and A. machipongonensis, with which it exhibited 97.2–98.5 % 16S rRNA gene sequence similarity. Sequence similarities to the type strains of the other recognized species of the genus Algoriphagus were 92.8–97.6 %. Strain MDM-1T was found to contain MK-7 as the predominant menaquinone and iso-C15 : 0 and summed feature 3 (C16 : 1ω6c and/or C16 : 1ω7c) as the major fatty acids. The major polar lipids were identified as phosphatidylcholine, phosphatidylethanolamine and two unidentified lipids. The DNA G+C content of strain MDM-1T was determined to be 42.7 mol% and the mean DNA–DNA relatedness with A. halophilus KCTC 12051T, A. lutimaris S1-3T, A. chungangensis KCTC 23759T, A. machipongonensis DSM 24695T and A. ratkowskyi CIP 107452T was 19.7–5.2 %. Differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain MDM-1T is distinguishable from recognized species of the genus Algoriphagus. On the basis of the data presented, strain MDM-1T is proposed to represent a novel species of the genus Algoriphagus, for which the name Algoriphagus aestuarii sp. nov. is proposed. The type strain is MDM-1T ( = KCTC 42199T = NBRC 110552T).


2015 ◽  
Vol 65 (Pt_7) ◽  
pp. 2042-2047 ◽  
Author(s):  
Sooyeon Park ◽  
Yong-Taek Jung ◽  
Sung-Min Won ◽  
Jung-Sook Lee ◽  
Jung-Hoon Yoon

A Gram-stain-positive, facultatively anaerobic, non-spore-forming, non-flagellated and rod-shaped or ovoid bacterial strain, designated BS-12MT, was isolated from a tidal flat sediment on the South Sea, South Korea. Strain BS-12MT grew optimally at 35 °C, at pH 7.0–8.0 and in the presence of 2.0 % (w/v) NaCl. The neighbour-joining phylogenetic tree based on 16S rRNA gene sequences revealed that strain BS-12MT fell within the cluster comprising the type strains of species of the genus Demequina, joining the type strain of Demequina aestuarii with which it shared the highest sequence similarity (98.6 %). It exhibited 16S rRNA gene sequence similarity of 96.1–97.9 % to the type strains of other species of the genus Demequina. The peptidoglycan type of strain BS-12MT was A4β based on l-Orn − l-Ser − d-Glu. Strain BS-12MT contained demethylmenaquinone-9(H4) as the major menaquinone and anteiso-C15:0 and C16:0 as the major fatty acids. The major polar lipids of strain BS-12MT were phosphatidylinositol and phosphatidylinositolmannoside. The DNA G+C content of strain BS-12MT was 70.7 mol% and its DNA–DNA relatedness values with the type strains of five phylogenetically related species of the genus Demequina were 15–34 %. Differential phenotypic properties, together with phylogenetic and genetic distinctiveness, revealed that strain BS-12MT is separate from other species of the genus Demequina. On the basis of the data presented, strain BS-12MT is considered to represent a novel species of the genus Demequina, for which the name Demequina activiva sp. nov. is proposed. The type strain is BS-12MT ( = KCTC 29674T = NBRC 110675T).


2007 ◽  
Vol 57 (2) ◽  
pp. 332-336 ◽  
Author(s):  
Seo-Youn Jung ◽  
Yong-Taek Jung ◽  
Tae-Kwang Oh ◽  
Jung-Hoon Yoon

A Gram-negative, motile, pale-yellow-pigmented, oval-shaped bacterial strain, DF-42T, was isolated from a tidal flat sediment in Korea. Strain DF-42T grew optimally at 25–30 °C and in the presence of 2–3 % (w/v) NaCl. It contained Q-8 as the predominant ubiquinone and C16 : 0, C18 : 1 ω7c and summed feature 3 (C16 : 1 ω7c and/or iso-C15 : 0 2-OH) as the major fatty acids. The DNA G+C content was 48.3 mol%. Phylogenetic trees based on 16S rRNA gene sequences showed that strain DF-42T falls within the evolutionary radiation enclosed by the genus Photobacterium. Strain DF-42T exhibited 16S rRNA gene sequence similarity values of 93.8–97.9 % to the type strains of Photobacterium species with validly published names. DNA–DNA relatedness data and differential phenotypic properties made it possible to categorize strain DF-42T as representing a species that is separate from previously described Photobacterium species. The name Photobacterium lutimaris sp. nov. is proposed, with strain DF-42T (=KCTC 12723T=JCM 13586T) as the type strain.


2010 ◽  
Vol 60 (1) ◽  
pp. 191-195 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
So-Jung Kang ◽  
Sooyeon Park ◽  
Ki-Hoon Oh ◽  
Tae-Kwang Oh

A Gram-negative, motile and pleomorphic bacterial strain, SMK-146T, was isolated from a tidal flat sediment of the Yellow Sea, Korea, and its taxonomic position was investigated. Strain SMK-146T grew optimally at pH 7.0–8.0 and 30 °C. It contained Q-10 as the predominant ubiquinone and C18 : 1 ω7c and 11-methyl C18 : 1 ω7c as the major fatty acids. The major polar lipids were phosphatidylcholine, phosphatidylglycerol and phosphatidylethanolamine. The DNA G+C content was 68.4 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain SMK-146T belongs to the genus Jannaschia. Strain SMK-146T exhibited 16S rRNA gene sequence similarity values of 95.3–97.0 % to the type strains of the five recognized Jannaschia species. The mean DNA–DNA relatedness value between strain SMK-146T and Jannaschia seosinensis KCCM 42114T, the closest phylogenetic neighbour, was 17 %. Differential phenotypic properties also revealed that strain SMK-146T differs from the recognized Jannaschia species. On the basis of phenotypic, phylogenetic and genetic data, strain SMK-146T represents a novel species of the genus Jannaschia, for which the name Jannaschia seohaensis sp. nov. is proposed. The type strain is SMK-146T (=KCTC 22172T =CCUG 55326T).


2010 ◽  
Vol 60 (11) ◽  
pp. 2587-2591 ◽  
Author(s):  
Young-Ok Kim ◽  
Kyung-Kil Kim ◽  
Sooyeon Park ◽  
So-Jung Kang ◽  
Jeong-Ho Lee ◽  
...  

A Gram-negative, motile, non-spore-forming and lipolytic bacterial strain, designated Gung47T, was isolated from a tidal flat on the west coast of Korea. Strain Gung47T grew optimally at 30 °C and with 2−5 % (w/v) NaCl. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain Gung47T belonged to the genus Photobacterium. Strain Gung47T exhibited 98.1 % 16S rRNA gene sequence similarity with Photobacterium rosenbergii LMG 22223T and 94.3–96.3 % similarity with other type strains of species of the genus Photobacterium. Strain Gung47T exhibited 47 % DNA–DNA relatedness to P. rosenbergii LMG 22223T. Strain Gung47T contained Q-8 as the predominant ubiquinone and C16 : 1 ω7c and/or iso-C15 : 0 2-OH, C16 : 0 and C18 : 1 ω7c as the major fatty acids. In this study, two closely related type strains, P. rosenbergii LMG 22223T and Photobacterium halotolerans LMG 22194T, were also found to have Q-8 as the predominant ubiquinone. The DNA G+C content of strain Gung47T was 50.6 mol%. The differential phenotypic properties together with the phylogenetic and genetic distinctiveness of strain Gung47T demonstrated that this strain is distinguishable from recognized Photobacterium species. Therefore, strain Gung47T is considered to represent a novel species of the genus Photobacterium, for which the name Photobacterium gaetbulicola sp. nov. is proposed. The type strain is Gung47T (=KCTC 22804T =CCUG 58399T).


2007 ◽  
Vol 57 (11) ◽  
pp. 2462-2466 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
So-Jung Kang ◽  
Tae-Kwang Oh

A Gram-negative, non-motile, rod-shaped bacterial strain, DS-57T, was isolated from soil from Dokdo, Korea, and its taxonomic position was investigated using a polyphasic approach. It grew optimally at 25 °C and in trypticase soy broth without NaCl and trypticase soy broth with 0.5 % NaCl. Strain DS-57T contained MK-7 as the predominant menaquinone and iso-C15 : 0, C16 : 1 ω7c and/or iso-C15 : 0 2-OH and iso-C17 : 0 3-OH as the major fatty acids. The DNA G+C content was 39.7 mol%. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain DS-57T was most closely related to the genus Pedobacter of the family Sphingobacteriaceae, clustering coherently with Pedobacter suwonensis, Pedobacter roseus and Pedobacter sandarakinus. Strain DS-57T exhibited 16S rRNA gene sequence similarity values of 99.2, 97.9 and 97.2 % with respect to the type strains of P. suwonensis, P. roseus and P. sandarakinus, respectively, and values less than 95.6 % with respect to the type strains of other Pedobacter species. Strain DS-57T exhibited levels of DNA–DNA relatedness of 45, 17 and 15 % with respect to the type strains of P. suwonensis, P. roseus and P. sandarakinus, respectively. Differential phenotypic properties, together with the phylogenetic distinctiveness and the DNA–DNA relatedness data, were sufficient to allow the classification of strain DS-57T as a species that is separate from recognized Pedobacter species. On the basis of phenotypic properties and phylogenetic distinctiveness, therefore, strain DS-57T represents a novel species of the genus Pedobacter, for which the name Pedobacter terrae sp. nov. is proposed. The type strain is DS-57T (=KCTC 12762T=DSM 17933T).


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