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First Report of Xenoroussoella triseptata Isolated from Soil in Korea
류정주,Seung-Yeol Lee,강인규,Leonid N. Ten,Hee-Young Jung 한국균학회 2022 韓國菌學會誌 Vol.50 No.3
A fungal strain, designated KNUF-20-NI009, was isolated from soil collected from Gunsansi, Jeollabuk-do, Korea. The isolate showed cultural features typical of the genus Xenoroussoella. Colonies cultivated on malt extract agar were olivaceous-brown to pale olivaceous-white at the margins, with undersides of dark olivaceous to olivaceous-brown and a white margin. The conidia, with a size range of 2.7-5.1×1.6-3.3 µm (x=3.6×2.6 µm, ̅ n=50), were globoid to ellipsoid in shape, hyaline when immature, becoming light brown to golden-brown when mature, and characterized by 1 or 2 guttules. Multi-locus sequence analysis based on a combined dataset of internal transcribed spacer regions (ITS), large subunit rDNA (LSU), small subunit rDNA (SSU), translation elongation factor 1-alpha (TEF1α), and RNA polymerase II largest subunit (RPB2) sequences revealed KNUF-20-NI009 to be a strain of Xenoroussoella triseptata. This is the first report of this species in Korea.
Spirosoma harenae sp. nov., a Bacterium Isolated from a Sandy Beach
Ten, Leonid N.,Elderiny, Nabil,Lee, Jae-Jin,Lee, Seung-Yeol,Park, Sangkyu,Lee, Dae Sung,Kim, Myung Kyum,Jung, Hee-Young Springer-Verlag 2018 Current microbiology Vol.75 No.2
<P>A Gram-stain-negative, non-motile, non-spore-forming, rod-shaped, aerobic bacterium, designated 15J8-9(T), was isolated from a sandy beach in Jeju Island, South Korea. The isolate was able to grow between 10 and 30 A degrees C, pH 5-8, and in presence of 0-1% (w/v) NaCl. Based on 16S rRNA gene phylogenetic analysis, the novel strain was closely related to members of the genus Spirosoma (96.1-90.9% similarities) and showed highest sequence similarity to Spirosoma panaciterrae DSM 21099(T) (96.1%). The G + C content of the genomic DNA of strain 15J8-9(T) was 45.1 mol%. The isolate contained menaquinone MK-7 as the predominant respiratory quinone, phosphatidylethanolamine as the major polar lipid, and summed feature 3 (C-16:1 omega 6c/C-16:1 omega 7c; 28.0%), C-16:1 omega 5c (23.4%), iso-C-15:0 (13.5%), and C-16:0 (11.5%) as the major fatty acids that supported the affiliation of strain 15J8-9(T) to the genus Spirosoma. The isolate could be differentiated clearly from recognized Spirosoma species on the basis of several phenotypic, genotypic and chemotaxonomic features. Therefore, strain 15J8-9(T) is considered to represent a novel species of the genus the genus Spirosoma, for which the name Spirosoma harenae sp. nov. is proposed. The type strain is 15J8-9(T) (= KCTC 52030(T) = JCM 31993(T)).</P>
Spirosoma panaciterrae sp. nov., isolated from soil
Ten, L. N.,Xu, J.-L.,Jin, F.-X.,Im, W.-T.,Oh, H.-M.,Lee, S.-T. Microbiology Society 2009 International journal of systematic and evolutiona Vol.59 No.2
<P>A Gram-negative, yellowish bacterial strain, designated Gsoil 1519(T), was isolated from soil of a ginseng field in Pocheon province (South Korea) and characterized using a polyphasic approach to determine its taxonomic position. Comparative 16S rRNA gene sequence analysis showed that strain Gsoil 1519(T) belongs to the family 'Flexibacteraceae' and is related to Spirosoma rigui KCTC 12531(T) (91.8 % similarity) and Spirosoma linguale LMG 10896(T) (91.5 % similarity). Phylogenetic distances from any other recognized species within the family 'Flexibacteraceae' were greater than 14.7 %. The G+C content of the genomic DNA of strain Gsoil 1519(T) was 50.1 %. The detection of MK-7 as the predominant menaquinone and a fatty acid profile with C(16 : 1)omega5c, summed feature 4 (C(16 : 1)omega7c and/or iso-C(15 : 0) 2-OH), iso-C(15 : 0) and C(16 : 0) as the major acids supported the affiliation of strain Gsoil 1519(T) to the genus Spirosoma. On the basis of its phenotypic properties and phylogenetic distinctiveness, strain Gsoil 1519(T) should be classified in the genus Spirosoma as a representative of a novel species, for which the name Spirosoma panaciterrae sp. nov. is proposed. The type strain is Gsoil 1519(T) (=KCTC 22263(T)=DSM 21099(T)).</P>
Hymenobacter knuensis sp. nov., Isolated From River Water
Ten, Leonid N.,Lee, Jae-Jin,Lee, Yeon-Hee,Park, Su-Jin,Lee, Seung-Yeol,Park, Sangkyu,Lee, Dae Sung,Kang, In-Kyu,Kim, Myung Kyum,Jung, Hee-Young Springer-Verlag 2017 Current microbiology Vol.74 No.4
<P>A Gram-stain-negative, non-motile, non-spore-forming, rod-shaped, aerobic bacterial strain, designated 16F7C-2(T), was isolated from the Han River, South Korea, and was characterized taxonomically using a polyphasic approach. Comparative 16S rRNA gene sequence analysis showed that strain 16F7C-2(T) belonged to the family Cytophagaceae in the phylum Bacteroidetes and was most closely related to Hymenobacter algoricola VUG-A23a(T) (98.3%) and Hymenobacter fastidiosus VUG-A124(T) (97.7%). The G + C content of the genomic DNA of strain 16F7C-2(T) was 63.4 mol%. The detection of menaquinone MK-7 as the predominant respiratory quinone; a fatty acid profile with summed feature 3 (C-16:1 omega 7c/C-16:1 omega 6c; 19.5%), summed feature 4 (C-17:1 iso I/C-17:1 anteiso B; 15.9%), C-15:0 iso (12.6%), C-16:1 omega 5c (10.5%), and C-15:0 anteiso (10.4%) as the major components; and a polar lipid profile with phosphatidylethanolamine as the major component also supported the affiliation of strain 16F7C-2(T) to the genus Hymenobacter. The DNA-DNA relatedness between strain 16F7C-2(T) and H. algoricola JCM 17214(T) and H. fastidiosus JCM17224(T) were 45.2 +/- 5.8 and 40.3 +/- 2.9%, respectively, clearly showing that the isolate constitutes a new genospecies. Strain 16F7C-2(T) could be clearly differentiated from its closest neighbors on the basis of its phenotypic, genotypic, and chemotaxonomic features. Therefore, strain 16F7C-2(T) represents a novel species of the genus Hymenobacter, for which the name Hymenobacter knuensis sp. nov. is proposed. The type strain is 16F7C-2(T) (=KCTC 52538(T) = JCM 31814(T)).</P>
Ten, L. N.,Jung, H.-M.,Im, W.-T.,Oh, H. W.,Yang, D.-C.,Yoo, S.-A.,Lee, S.-T. Microbiology Society 2009 International journal of systematic and evolutiona Vol.59 No.8
<P>A Gram-negative, aerobic, rod-shaped, non-motile, non-spore-forming bacterial strain, designated Gsoil 191T, was isolated from a soil sample from a ginseng field in Pocheon Province, South Korea, and was characterized taxonomically by using a polyphasic approach. Comparative 16S rRNA gene sequence analysis showed that strain Gsoil 191T belongs to the family Xanthomonadaceae and is related to Dokdonella fugitiva LMG 23001T (97.8% sequence similarity) and Dokdonella koreensis KCTC 12396T (96.9%). The G+C content of the genomic DNA was 68.7 mol%. The major respiratory quinone was Q-8 and the major fatty acids were iso-C17:1omega9c (30.6%), iso-C17:0 (21.6%) and iso-C15:0 (13.0%), supporting the affiliation of strain Gsoil 191T to the genus Dokdonella. DNA-DNA hybridization experiments showed that the DNA-DNA relatedness values between strain Gsoil 191T and its closest phylogenetic neighbours were below 40%. The results of physiological and biochemical tests allowed genotypic and phenotypic differentiation of strain Gsoil 191T from recognized species of the genus Dokdonella. On the basis of its phenotypic properties and phylogenetic distinctiveness, strain Gsoil 191T represents a novel species of the genus Dokdonella, for which the name Dokdonella ginsengisoli sp. nov. is proposed. The type strain is Gsoil 191T (=KCTC 12564T=DSM 17954T=CCUG 52462T).</P>