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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.
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>
Leonid N. Ten,Hae-Min Jung,임완택,유순애,이성택 한국미생물학회 2008 The journal of microbiology Vol.46 No.5
A Gram-negative, aerobic, rod shaped, non-spore-forming bacterial strain, designated Dae08^T, was isolated from sediment of the stream near Daechung dam in South Korea, and was characterized in order to determine its taxonomic position, using a polyphasic approach. Comparative 16S rRNA gene sequence analysis showed that strain Dae08^T belongs to the family Xanthomonadaceae of the Gammaproteobacteria, and is related to Lysobacter brunescens ATCC 29482^T (97.3%). The phylogenetic distances from any other species with validly published names within the genus Lysobacter were greater than 3.7%. The G+C contents of the genomic DNA of strain Dae08^T was 69.3 mol%. The detection of a quinone system with Q-8 as the predominant compound and a fatty acid profile with iso-C_15:0, iso-C_17:1 ω9c, iso-C_17:0, iso-C_16:0, and iso-C_11:0 3-OH as the major acids supported the affiliation of strain Dae08^T to the genus Lysobacter. DNA-DNA relatedness between strain Dae08^T and its phylogenetically closest neighbour was 28%. On the basis of its phenotypic properties and phylogenetic distinctiveness, strain Dae08^T (= KCTC 12600^T) should be classified in the genus Lysobacter as the novel species, for which the name Lysobacter daecheongensis sp. nov. is proposed.
Larkinella terrae sp. nov., isolated from soil on Jeju Island, South Korea
Ten, Leonid N.,Jeon, Jongguen,Park, Su-Jin,Park, Sangkyu,Lee, Seung-Yeol,Kim, Myung Kyum,Jung, Hee-Young Springer-Verlag 2018 Antonie van Leeuwenhoek Vol.111 No.3
<P>A Gram-stain negative, non-motile, rod-shaped, aerobic bacterium, designated 15J8-8(T), was isolated from a soil sample collected on Jeju Island, South Korea, and characterized taxonomically using a polyphasic approach. Comparative 16S rRNA gene sequence analysis showed that strain 15J8-8(T) belongs to the family Cytophagaceae and is related to Larkinella bovis M2TB15(T) (95.0%), 'Larkinella harenae' 15J9-9 (94.5%), Larkinella arboricola Z0532(T) (93.2%), and Larkinella insperata LMG 22510(T) (93.0%). The DNA G+C content of strain 15J8-8(T) was 50.5 mol%. The detection of phosphatidylethanolamine and two unidentified polar lipids as major polar lipids; menaquinone-7 as the predominant quinone; and C-16:1 omega 5c, C-16:0 N alcohol, and iso-C-15:0 as the major fatty acids also supported the affiliation of the isolate to the genus Larkinella. Based on its phenotypic properties and phylogenetic distinctiveness, strain 15J8-8(T) should be classified in the genus Larkinella as representative of a novel species, for which the name Larkinella terrae sp. nov. is proposed. The type strain is 15J8-8(T) (= KCTC 52001(T) = JCM 31990(T)).</P>