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Jung-hoon Yoon - One of the best experts on this subject based on the ideXlab platform.
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Erythrobacter insulae sp nov isolated from a tidal flat
International Journal of Systematic and Evolutionary Microbiology, 2020Co-Authors: Sooyeon Park, Siyu Chen, Jung-hoon YoonAbstract: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).
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Erythrobacter marisflavi sp nov isolated from isolated from estuary water
International Journal of Systematic and Evolutionary Microbiology, 2019Co-Authors: Sooyeon Park, Sung Min Won, Jung-hoon YoonAbstract:A Gram-stain-negative, aerobic, non-motile and coccoid-, ovoid- or rod-shaped bacterial strain, designated KEM-5T, was isolated from water sampled at an estuary environment on the Yellow Sea, Republic of Korea. The neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain KEM-5T fell within the clade comprising the type strains of Erythrobacter species. Strain KEM-5T exhibited 16S rRNA gene sequence similarities of 97.01–97.66 % to the type strains of E.rythrobacter citreus, E.rythrobacter seohaensis and E.rythrobacter pelagi and of 94.18–96.95 % to the type strains of the other Erythrobacter species. The genomicaverage nucleotide identity values of strain KEM-5T with a non-type strain (LAMA 915) of E. citreus and E. seohaensis SW-135T were 76.04 and 74.98 %, respectively. Mean DNA–DNA relatedness values between strain KEM-5T and the type strains of E. citreus , E. seohaensis and E. pelagi were 10–18 %. Strain KEM-5T contained Q-10 as the predominant ubiquinone and C18 : 1 ω7c, summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c), C16 : 0 and C17 : 1ω6c as the major fatty acids. The major polar lipids of strain KEM-5T were phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol and sphingoglycolipid. The DNA G+C content of strain KEM-5T was 62.4 mol%. Distinguishing phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain KEM-5T is separated from recognized Erythrobacter species. On the basis of the data presented here, strain KEM-5T is considered to represent a novel species of the genus Erythrobacter , for which the name Erythrobacter marisflavi sp. nov. is proposed. The type strain is KEM-5T (=KACC 19865T=KCTC 62896T=NBRC 113546T).
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Erythrobacter aquimixticola sp nov isolated from the junction between the ocean and a freshwater spring
International Journal of Systematic and Evolutionary Microbiology, 2017Co-Authors: Sooyeon Park, Yongtaek Jung, Su Jung Choi, Jung-hoon YoonAbstract:A Gram-stain-negative, aerobic, non-motile and coccoid, ovoid or rod-shaped bacterial strain, designated JSSK-14T, was isolated from the place where the ocean and a freshwater spring meet at Jeju island, South Korea. Strain JSSK-14T grew optimally at pH 7.0–8.0, at 30 °C and in the presence of 1.0–2.0 % (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain JSSK-14T fell within the clade comprising the type strains of species of the genus Erythrobacter . Strain JSSK-14T exhibited 16S rRNA gene sequence similarity values of 97.09–98.42 % to the type strains of Erythrobacter gangjinensis , Erythrobacter atlanticus and Erythrobacter luteus and of 94.31–96.97 % to the type strains of the other species of the genus Erythrobacter . Strain JSSK-14T contained Q-10 as the predominant ubiquinone and C18 : 1ω7c as the major fatty acid. The major polar lipids of strain JSSK-14T were phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol and sphingoglycolipid. The DNA G+C content of strain JSSK-14T was 63.5 mol%, and its mean DNA–DNA relatedness values with the type strains of Erythrobacter gangjinensis , Erythrobacter atlanticus and Erythrobacter luteus were 13–25 %. Differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain JSSK-14T is separated from recognized species of the genus Erythrobacter . On the basis of the data presented, strain JSSK-14T is considered to represent a novel species of the genus Erythrobacter , for which the name Erythrobacter aquimixticola sp. nov. is proposed. The type strain is JSSK-14T (=KCTC 52764T=NBRC 112765T).
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Erythrobacter lutimaris sp nov isolated from a tidal flat sediment
International Journal of Systematic and Evolutionary Microbiology, 2014Co-Authors: Yongtaek Jung, Sooyeon Park, Jungsook Lee, Jung-hoon YoonAbstract:A Gram-stain-negative, non-motile, coccoid- or oval-shaped bacterial strain, designated S-5T, belonging to the class Alphaproteobacteria , was isolated from a tidal flat sediment of the Yellow Sea, Korea and was subjected to a polyphasic taxonomic study. Strain S-5T grew optimally at pH 7.0–8.0, at 30 °C and in the presence of 2–3 % (w/v) NaCl. Neighbour-joining analysis based on 16S rRNA gene sequences showed that strain S-5T fell within the clade comprising the species of the genus Erythrobacter , clustering with the type strains of Erythrobacter pelagi , Erythrobacter citreus and Erythrobacter seohaensis with which it exhibited the highest 16S rRNA gene sequence similarity (96.0–96.7 %). The DNA G+C content was 66.0 mol%. Strain S-5T contained Q-10 as the predominant ubiquinone and summed feature 8 (C18 : 1ω7c and/or C18 : 1ω6c) and C17 : 1ω6c as the major fatty acids. The major polar lipids were sphingoglycolipid, phosphatidylcholine, phosphatidylglycerol, an unidentified glycolipid and two unidentified lipids. Differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, demonstrated that strain S-5T is distinguishable from other species of the genus Erythrobacter . On the basis of the data presented, strain S-5T is considered to represent a novel species of the genus Erythrobacter , for which the name Erythrobacter lutimaris sp. nov. is proposed. The type strain is S-5T ( = KCTC 42109T = CECT 8624T).
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Erythrobacter marinus sp nov isolated from seawater
International Journal of Systematic and Evolutionary Microbiology, 2012Co-Authors: Yongtaek Jung, Sooyeon Park, Jung-hoon YoonAbstract:A Gram-negative, non-motile, ovoid to rod-shaped bacterium, designated strain HWDM-33T, was isolated from seawater of the Yellow Sea, Korea, and was subjected to a polyphasic taxonomic study. Strain HWDM-33T grew optimally at pH 7–8, at 25 °C and in the presence of 2–3 % (w/v) NaCl. Neighbour-joining, maximum-likelihood and maximum-parsimony phylogenetic trees based on 16S rRNA gene sequences showed that strain HWDM-33T clustered with Erythrobacter gangjinensis K7-2T, with which it shared 96.9 % sequence similarity. Strain HWDM-33T exhibited 94.2–95.8 % 16S rRNA gene sequence similarity to the type strains of other recognized species of the genus Erythrobacter . Strain HWDM-33T contained Q-10 as the predominant ubiquinone and C18 : 1ω7c, C17 : 1ω6c, and C16 : 1ω7c and/or iso-C15 : 0 2-OH as the major fatty acids. The major polar lipids were sphingoglycolipid, phosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine and an unidentified lipid. The DNA G+C content of strain HWDM-33T was 66.1 mol%. Differential phenotypic properties and phylogenetic distinctiveness demonstrated that strain HWDM-33T was separate from E. gangjinensis and other recognized species of the genus Erythrobacter . On the basis of the data presented here, strain HWDM-33T represents a novel species of the genus Erythrobacter , for which the name Erythrobacter marinus sp. nov. is proposed. The type strain is HWDM-33T ( = KCTC 23554T = CCUG 60528T).
Yongha Park - One of the best experts on this subject based on the ideXlab platform.
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Erythrobacter seohaensis sp nov and Erythrobacter gaetbuli sp nov isolated from a tidal flat of the yellow sea in korea
International Journal of Systematic and Evolutionary Microbiology, 2005Co-Authors: Jung-hoon Yoon, Yongha ParkAbstract:Two Gram-negative, non-spore-forming, slightly halophilic strains, SW-135T and SW-161T, which were isolated from a tidal flat of the Yellow Sea in Korea, were subjected to a polyphasic taxonomic study. The two isolates lacked bacteriochlorophyll a and contained ubiquinone-10 (Q-10) as the predominant respiratory lipoquinone and C18 : 1 ω7c and C17 : 1 ω6c as the major fatty acids. The DNA G+C contents of strains SW-135T and SW-161T were 62·2 and 64·5 mol%, respectively. Phylogenetic analyses based on 16S rRNA gene sequences showed that the two strains fall within the radiation of the cluster comprising Erythrobacter species. Strains SW-135T and SW-161T exhibited a 16S rRNA gene sequence similarity value of 96·9 % and a mean DNA–DNA relatedness level of 12·3 %. Sequence similarities between strains SW-135T and SW-161T and the type strains of recognized Erythrobacter species ranged from 96·7 to 98·5 %. Levels of DNA–DNA relatedness were low enough to indicate that strains SW-135T and SW-161T represent members of two species separate from all recognized Erythrobacter species. On the basis of polyphasic taxonomic data, strains SW-135T (=KCTC 12228T=DSM 16221T) and SW-161T (=KCTC 12227T=DSM 16225T) were classified as two novel Erythrobacter species, for which the names Erythrobacter seohaensis sp. nov. and Erythrobacter gaetbuli sp. nov. are proposed, respectively.
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Erythrobacter aquimaris sp nov isolated from sea water of a tidal flat of the yellow sea in korea
International Journal of Systematic and Evolutionary Microbiology, 2004Co-Authors: Jung-hoon Yoon, Kook Hee Kang, Yongha ParkAbstract:Three Gram-negative, non-motile, non-spore-forming, slightly halophilic rods (strains SW-110(T), SW-116 and SW-140) were isolated from sea water of a tidal flat of the Yellow Sea in Korea and subjected to a polyphasic taxonomic study. The three isolates did not produce bacteriochlorophyll a and were characterized chemotaxonomically by having ubiquinone-10 as the predominant respiratory lipoquinone and C(18 : 1)omega7c and C(17 : 1)omega6c as the major fatty acids. The DNA G+C content of the three isolates was between 62.2 and 62.9 mol%. Strains SW-110(T), SW-116 and SW-140 showed no difference in their 16S rRNA gene sequences, and their mean level of DNA-DNA relatedness was 94.8 %. Phylogenetic analyses based on 16S rRNA gene sequences showed that the three strains form a distinct phylogenetic lineage within the cluster comprising Erythrobacter species. Similarities between the 16S rRNA gene sequences of strains SW-110(T), SW-116 and SW-140 and the type strains of Erythrobacter species ranged from 98.4 % (with Erythrobacter longus) to 97.7 % (with Erythrobacter flavus). Levels of DNA-DNA relatedness between strains SW-110(T), SW-116 and SW-140 and the type strains of all recognized Erythrobacter species were in the range 5.3-12.7 %. On the basis of polyphasic taxonomic data, strains SW-110(T), SW-116 and SW-140 were classified as a novel Erythrobacter species, for which the name Erythrobacter aquimaris sp. nov. is proposed. The type strain is SW-110(T) (=KCCM 41818(T)=JCM 12189(T)).
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Erythrobacter flavus sp nov a slight halophile from the east sea in korea
International Journal of Systematic and Evolutionary Microbiology, 2003Co-Authors: Jung-hoon Yoon, Kook Hee Kang, Hongik Kim, Ingi Kim, Yongha ParkAbstract:Two gram-negative, motile, non-spore-forming, yellow-pigmented and slightly halophilic strains (SW-46T and SW-52) were isolated from sea water of the East Sea, Korea, and subjected to a polyphasic taxonomic study. Strains SW-46T and SW-52 were characterized chemotaxonomically by having ubiquinone-10 (Q-10) as the predominant respiratory lipoquinone and C18:1 omega7c as the major fatty acid. Their DNA G + C content was 64.0-64.1 mol%. Strains SW-46T and SW-52 showed 1 bp difference in their 16S rDNA sequences and a mean DNA-DNA relatedness level of 94.4%. Phylogenetic analysis based on 16S rDNA sequences showed that strains SW-46T and SW-52 fall within the alpha-subclass of the Proteobacteria and form a coherent cluster with Erythrobacter longus, Erythrobacter litoralis and Erythrobacter citreus. Levels of 16S rDNA similarity between strains SW-46T and SW-52 and the type strains of these three Erythrobacter species were 96.5-97.9%. Levels of DNA-DNA relatedness between strains SW-46T and SW-52 and the type strains of E. longus, E. litoralis and E. citreus were 3.6-14.7%. Therefore, on the basis of phenotypic properties, phylogeny and genomic data, strains SW-46T and SW-52 should be placed in the genus Erythrobacter as a novel species, for which the name Erythrobacter flavus sp. nov. is proposed. The type strain is SW-46T (= KCCM 41642T = JCM 11808T).
Tatas H. P. Brotosudarmo - One of the best experts on this subject based on the ideXlab platform.
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sulfur containing carotenoids from a marine coral symbiont Erythrobacter flavus strain kj5
Marine Drugs, 2019Co-Authors: Edi Setiyono, Yuzo Shioi, Delianis Pringgenies, Yu Kanesaki, Koichiro Awai, Tatas H. P. BrotosudarmoAbstract:Erythrobacter flavus strain KJ5 (formerly called Erythrobacter sp. strain KJ5) is a yellowish marine bacterium that was isolated from a hard coral Acropora nasuta in the Karimunjawa Islands, Indonesia. The complete genome sequence of the bacterium has been reported recently. In this study, we examined the carotenoid composition of this bacterium using high-performance liquid chromatography coupled with ESI-MS/MS. We found that the bacterium produced sulfur-containing carotenoids, i.e., caloxanthin sulfate and nostoxanthin sulfate, as the most abundant carotenoids. A new carotenoid zeaxanthin sulfate was detected based on its ESI-MS/MS spectrum. The unique presence of sulfated carotenoids found among the currently known species of the Erythrobacter genus were discussed.
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Analysis of β-cryptoxanthin from yellow pigmented marine bacterium Erythrobacter sp. kj5
IOP Conference Series: Earth and Environmental Science, 2019Co-Authors: Edi Setiyono, Tatas H. P. Brotosudarmo, Delianis Pringgenies, Heriyanto, Monika Nur Utami Prihastyanti, Yuzo ShioiAbstract:The objectives of this study were to isolate and analyze β-cryptoxanthin from yellow pigmented marine bacterium Erythrobacter sp. KJ5. The pigments from Erythrobacter sp. KJ5 were extracted from cells with methanol:acetone (7:3, v/v). β-cryptoxanthin standard was isolated from citrus fruit peel using 100% acetone and purified by high-performance liquid chromatography (HPLC) using a C30 column. The existence of β-cryptoxanthin in Erythrobacter sp. KJ5 was determined based on spectral properties and co-chromatography analyses after adding the standard β-cryptoxanthin. The co-chromatography results showed that peak 5 at retention time 33.32 min sharply spiked without changing maximum wavelengths (λmax)at 453 and 480 nm after adding the standard β-cryptoxanthin. These results likely conclude that peak 5 was β-cryptoxanthin.
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complete genome sequence of the marine bacterium Erythrobacter flavus strain kj5
Microbiology Resource Announcements, 2019Co-Authors: Yu Kanesaki, Edi Setiyono, Tatas H. P. Brotosudarmo, Delianis Pringgenies, Ryota Moriuchi, Koichiro AwaiAbstract:ABSTRACT Erythrobacter flavus strain KJ5 (formerly called Erythrobacter sp. strain KJ5) is a yellowish marine bacterium that was isolated from a hard coral in the Karimunjawa Islands of Indonesia. Here, we report the complete genome sequence of the bacterium and provide a useful resource for studies of the biosynthetic pathways of its unique carotenoids.
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preliminary investigation of the carotenoid composition of Erythrobacter sp strain kj5 by high performance liquid chromatography and mass spectrometry
2018Co-Authors: Ayu Dita Juliadiningtyas, Ocky Karna Radjasa, Yuzo Shioi, Delianis Pringgenies, Heriyanto Heriyanto, Katarina Purnomo Salim, Leenawaty Limantara, Tatas H. P. BrotosudarmoAbstract:Separation and identification of carotenoids (Cars) from aerobic marine bacterium Erythrobacter sp. strain KJ5 are reported. The cells of Erythrobacter sp. were grown in a Shioi medium at 28.5°C for three days. Among the four solvents tested, the mixture of methanol and acetone (3:7, v/v) was determined as the optimum solvent for Car extraction from the cells by measuring its absorption spectrum. The Cars were separated via reversed-phase high-performance liquid chromatography using a C8 column and identified by a UV-Vis photodiode array detector and an electrospray ionization mass spectrometry. Bacteriochlorophyll a was not detected from the extracts of cells grown under both light and dark conditions. At least 16 peaks of Cars were separated, wherein eleven peaks showed the same absorption spectrum with λmax at 452-453 nm and at 478-480 nm. The other five peaks had an additional absorption peak at 340 nm, which belongs to cis-isomeric form. Two peaks of Cars were identified to be zeaxanthin and β-carotene.
Sooyeon Park - One of the best experts on this subject based on the ideXlab platform.
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Erythrobacter insulae sp nov isolated from a tidal flat
International Journal of Systematic and Evolutionary Microbiology, 2020Co-Authors: Sooyeon Park, Siyu Chen, Jung-hoon YoonAbstract: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).
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Erythrobacter marisflavi sp nov isolated from isolated from estuary water
International Journal of Systematic and Evolutionary Microbiology, 2019Co-Authors: Sooyeon Park, Sung Min Won, Jung-hoon YoonAbstract:A Gram-stain-negative, aerobic, non-motile and coccoid-, ovoid- or rod-shaped bacterial strain, designated KEM-5T, was isolated from water sampled at an estuary environment on the Yellow Sea, Republic of Korea. The neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain KEM-5T fell within the clade comprising the type strains of Erythrobacter species. Strain KEM-5T exhibited 16S rRNA gene sequence similarities of 97.01–97.66 % to the type strains of E.rythrobacter citreus, E.rythrobacter seohaensis and E.rythrobacter pelagi and of 94.18–96.95 % to the type strains of the other Erythrobacter species. The genomicaverage nucleotide identity values of strain KEM-5T with a non-type strain (LAMA 915) of E. citreus and E. seohaensis SW-135T were 76.04 and 74.98 %, respectively. Mean DNA–DNA relatedness values between strain KEM-5T and the type strains of E. citreus , E. seohaensis and E. pelagi were 10–18 %. Strain KEM-5T contained Q-10 as the predominant ubiquinone and C18 : 1 ω7c, summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c), C16 : 0 and C17 : 1ω6c as the major fatty acids. The major polar lipids of strain KEM-5T were phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol and sphingoglycolipid. The DNA G+C content of strain KEM-5T was 62.4 mol%. Distinguishing phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain KEM-5T is separated from recognized Erythrobacter species. On the basis of the data presented here, strain KEM-5T is considered to represent a novel species of the genus Erythrobacter , for which the name Erythrobacter marisflavi sp. nov. is proposed. The type strain is KEM-5T (=KACC 19865T=KCTC 62896T=NBRC 113546T).
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Erythrobacter aquimixticola sp nov isolated from the junction between the ocean and a freshwater spring
International Journal of Systematic and Evolutionary Microbiology, 2017Co-Authors: Sooyeon Park, Yongtaek Jung, Su Jung Choi, Jung-hoon YoonAbstract:A Gram-stain-negative, aerobic, non-motile and coccoid, ovoid or rod-shaped bacterial strain, designated JSSK-14T, was isolated from the place where the ocean and a freshwater spring meet at Jeju island, South Korea. Strain JSSK-14T grew optimally at pH 7.0–8.0, at 30 °C and in the presence of 1.0–2.0 % (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain JSSK-14T fell within the clade comprising the type strains of species of the genus Erythrobacter . Strain JSSK-14T exhibited 16S rRNA gene sequence similarity values of 97.09–98.42 % to the type strains of Erythrobacter gangjinensis , Erythrobacter atlanticus and Erythrobacter luteus and of 94.31–96.97 % to the type strains of the other species of the genus Erythrobacter . Strain JSSK-14T contained Q-10 as the predominant ubiquinone and C18 : 1ω7c as the major fatty acid. The major polar lipids of strain JSSK-14T were phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol and sphingoglycolipid. The DNA G+C content of strain JSSK-14T was 63.5 mol%, and its mean DNA–DNA relatedness values with the type strains of Erythrobacter gangjinensis , Erythrobacter atlanticus and Erythrobacter luteus were 13–25 %. Differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain JSSK-14T is separated from recognized species of the genus Erythrobacter . On the basis of the data presented, strain JSSK-14T is considered to represent a novel species of the genus Erythrobacter , for which the name Erythrobacter aquimixticola sp. nov. is proposed. The type strain is JSSK-14T (=KCTC 52764T=NBRC 112765T).
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Erythrobacter lutimaris sp nov isolated from a tidal flat sediment
International Journal of Systematic and Evolutionary Microbiology, 2014Co-Authors: Yongtaek Jung, Sooyeon Park, Jungsook Lee, Jung-hoon YoonAbstract:A Gram-stain-negative, non-motile, coccoid- or oval-shaped bacterial strain, designated S-5T, belonging to the class Alphaproteobacteria , was isolated from a tidal flat sediment of the Yellow Sea, Korea and was subjected to a polyphasic taxonomic study. Strain S-5T grew optimally at pH 7.0–8.0, at 30 °C and in the presence of 2–3 % (w/v) NaCl. Neighbour-joining analysis based on 16S rRNA gene sequences showed that strain S-5T fell within the clade comprising the species of the genus Erythrobacter , clustering with the type strains of Erythrobacter pelagi , Erythrobacter citreus and Erythrobacter seohaensis with which it exhibited the highest 16S rRNA gene sequence similarity (96.0–96.7 %). The DNA G+C content was 66.0 mol%. Strain S-5T contained Q-10 as the predominant ubiquinone and summed feature 8 (C18 : 1ω7c and/or C18 : 1ω6c) and C17 : 1ω6c as the major fatty acids. The major polar lipids were sphingoglycolipid, phosphatidylcholine, phosphatidylglycerol, an unidentified glycolipid and two unidentified lipids. Differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, demonstrated that strain S-5T is distinguishable from other species of the genus Erythrobacter . On the basis of the data presented, strain S-5T is considered to represent a novel species of the genus Erythrobacter , for which the name Erythrobacter lutimaris sp. nov. is proposed. The type strain is S-5T ( = KCTC 42109T = CECT 8624T).
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Erythrobacter marinus sp nov isolated from seawater
International Journal of Systematic and Evolutionary Microbiology, 2012Co-Authors: Yongtaek Jung, Sooyeon Park, Jung-hoon YoonAbstract:A Gram-negative, non-motile, ovoid to rod-shaped bacterium, designated strain HWDM-33T, was isolated from seawater of the Yellow Sea, Korea, and was subjected to a polyphasic taxonomic study. Strain HWDM-33T grew optimally at pH 7–8, at 25 °C and in the presence of 2–3 % (w/v) NaCl. Neighbour-joining, maximum-likelihood and maximum-parsimony phylogenetic trees based on 16S rRNA gene sequences showed that strain HWDM-33T clustered with Erythrobacter gangjinensis K7-2T, with which it shared 96.9 % sequence similarity. Strain HWDM-33T exhibited 94.2–95.8 % 16S rRNA gene sequence similarity to the type strains of other recognized species of the genus Erythrobacter . Strain HWDM-33T contained Q-10 as the predominant ubiquinone and C18 : 1ω7c, C17 : 1ω6c, and C16 : 1ω7c and/or iso-C15 : 0 2-OH as the major fatty acids. The major polar lipids were sphingoglycolipid, phosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine and an unidentified lipid. The DNA G+C content of strain HWDM-33T was 66.1 mol%. Differential phenotypic properties and phylogenetic distinctiveness demonstrated that strain HWDM-33T was separate from E. gangjinensis and other recognized species of the genus Erythrobacter . On the basis of the data presented here, strain HWDM-33T represents a novel species of the genus Erythrobacter , for which the name Erythrobacter marinus sp. nov. is proposed. The type strain is HWDM-33T ( = KCTC 23554T = CCUG 60528T).
Kook Hee Kang - One of the best experts on this subject based on the ideXlab platform.
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Erythrobacter luteolus sp. nov., isolated from a tidal flat of the Yellow Sea in Korea.
International Journal of Systematic and Evolutionary Microbiology, 2005Co-Authors: Jung-hoon Yoon, Kook Hee Kang, Soo-hwan YeoAbstract:A Gram-negative, non-spore-forming, yellow-pigmented, slightly halophilic bacterial strain, SW-109T, was isolated from a tidal flat of the Yellow Sea in Korea, and subjected to a polyphasic taxonomic study. This isolate did not produce bacteriochlorophyll a and contained ubiquinone-10 as the predominant respiratory lipoquinone and C18 : 1 ω7c as the major fatty acid. The DNA G+C content was 60·3 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain SW-109T is phylogenetically affiliated to the genus Erythrobacter of the family Sphingomonadaceae. Strain SW-109T exhibited levels of 16S rRNA gene sequence similarity to the type strains of Erythrobacter species of 94·0–96·3 %, making it possible to categorize strain SW-109T as a species that is separate from previously recognized Erythrobacter species. On the basis of its phenotypic properties and phylogenetic distinctiveness, SW-109T (=KCTC 12311T=JCM 12599T) was classified as the type strain of a novel Erythrobacter species, for which the name Erythrobacter luteolus sp. nov. is proposed.
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Erythrobacter aquimaris sp nov isolated from sea water of a tidal flat of the yellow sea in korea
International Journal of Systematic and Evolutionary Microbiology, 2004Co-Authors: Jung-hoon Yoon, Kook Hee Kang, Yongha ParkAbstract:Three Gram-negative, non-motile, non-spore-forming, slightly halophilic rods (strains SW-110(T), SW-116 and SW-140) were isolated from sea water of a tidal flat of the Yellow Sea in Korea and subjected to a polyphasic taxonomic study. The three isolates did not produce bacteriochlorophyll a and were characterized chemotaxonomically by having ubiquinone-10 as the predominant respiratory lipoquinone and C(18 : 1)omega7c and C(17 : 1)omega6c as the major fatty acids. The DNA G+C content of the three isolates was between 62.2 and 62.9 mol%. Strains SW-110(T), SW-116 and SW-140 showed no difference in their 16S rRNA gene sequences, and their mean level of DNA-DNA relatedness was 94.8 %. Phylogenetic analyses based on 16S rRNA gene sequences showed that the three strains form a distinct phylogenetic lineage within the cluster comprising Erythrobacter species. Similarities between the 16S rRNA gene sequences of strains SW-110(T), SW-116 and SW-140 and the type strains of Erythrobacter species ranged from 98.4 % (with Erythrobacter longus) to 97.7 % (with Erythrobacter flavus). Levels of DNA-DNA relatedness between strains SW-110(T), SW-116 and SW-140 and the type strains of all recognized Erythrobacter species were in the range 5.3-12.7 %. On the basis of polyphasic taxonomic data, strains SW-110(T), SW-116 and SW-140 were classified as a novel Erythrobacter species, for which the name Erythrobacter aquimaris sp. nov. is proposed. The type strain is SW-110(T) (=KCCM 41818(T)=JCM 12189(T)).
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Erythrobacter flavus sp nov a slight halophile from the east sea in korea
International Journal of Systematic and Evolutionary Microbiology, 2003Co-Authors: Jung-hoon Yoon, Kook Hee Kang, Hongik Kim, Ingi Kim, Yongha ParkAbstract:Two gram-negative, motile, non-spore-forming, yellow-pigmented and slightly halophilic strains (SW-46T and SW-52) were isolated from sea water of the East Sea, Korea, and subjected to a polyphasic taxonomic study. Strains SW-46T and SW-52 were characterized chemotaxonomically by having ubiquinone-10 (Q-10) as the predominant respiratory lipoquinone and C18:1 omega7c as the major fatty acid. Their DNA G + C content was 64.0-64.1 mol%. Strains SW-46T and SW-52 showed 1 bp difference in their 16S rDNA sequences and a mean DNA-DNA relatedness level of 94.4%. Phylogenetic analysis based on 16S rDNA sequences showed that strains SW-46T and SW-52 fall within the alpha-subclass of the Proteobacteria and form a coherent cluster with Erythrobacter longus, Erythrobacter litoralis and Erythrobacter citreus. Levels of 16S rDNA similarity between strains SW-46T and SW-52 and the type strains of these three Erythrobacter species were 96.5-97.9%. Levels of DNA-DNA relatedness between strains SW-46T and SW-52 and the type strains of E. longus, E. litoralis and E. citreus were 3.6-14.7%. Therefore, on the basis of phenotypic properties, phylogeny and genomic data, strains SW-46T and SW-52 should be placed in the genus Erythrobacter as a novel species, for which the name Erythrobacter flavus sp. nov. is proposed. The type strain is SW-46T (= KCCM 41642T = JCM 11808T).