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Sphingomonas flavus sp. nov. isolated from road soil
Du, Juan,Singh, Hina,Won, KyungHwa,Yang, Jung-Eun,Akter, Shahina,Jin, Feng-Xie,Yi, Tae-Hoo Springer-Verlag 2015 Archives of microbiology Vol.197 No.7
<P>A yellow-colored, Gram-negative, strictly aerobic, non-motile, rod-shaped bacterium, designated THG-MM5(T), was isolated from road soil in Yongin-si, Gyeonggi-do, Republic of Korea. Based on 16S rRNA gene sequence, strain THG-MM5(T) was moderately related to Sphingomonas sediminicola KACC 15039(T) (96.1?%), Sphingomonas ginsengisoli KACC 16858(T) (96.1?%) and Sphingomonas jaspsi KACC 13230(T) (96.0?%). Chemotaxonomic data revealed that strain THG-MM5(T) possesses ubiquinone-10 as the only respiratory quinone, sym-homospermidine as the major polyamine and summed feature 3 (C16:1 ω7c and/or C16:1 ω6c), C18:1 ω7c and C16:0 as the major fatty acids. The polar lipid profile included sphingoglycolipid. The DNA G?+?C content was 60.7?mol%. These data, together with phenotypic characterization, corroborated the affiliation of strain THG-MM5(T) to the genus Sphingomonas. Thus, the isolate represents a novel species, for which the name Sphingomonas flavus sp. nov. is proposed, with THG-MM5(T) as the type strain (=KACC 18277(T)?=?CCTCC AB 2014320(T)).</P>
Du, Juan,Singh, Hina,Ngo, Hien T. T.,Won, Kyung-Hwa,Kim, Ki-Young,Yi, Tae-Hoo International Union of Microbiological Societies 2015 International journal of systematic and evolutiona Vol.65 No.4
<P>Two Gram-stain-negative, yellow, aerobic and rod-shaped bacterial isolates, designated THG-DN3.18<SUP>T</SUP> and THG-DN3.19<SUP>T</SUP>, were isolated from an ancient tree trunk from Daejeon, South Korea. 16S rRNA gene sequence similarity showed that both strains belong to the genus <I>Pedobacter</I> within the family <I>Sphingobacteriaceae</I> . Strain THG-DN3.18<SUP>T</SUP> exhibited maximum sequence similarity with <I>Pedobacter boryungensis</I> KCTC 23344<SUP>T</SUP> (98.5 %) while strain THG-DN3.19<SUP>T</SUP> exhibited maximum sequence similarity with <I>Pedobacter nyackensis</I> LMG 24260<SUP>T</SUP> (97.3 %). In DNA–DNA hybridization tests, the two strains showed less than 35 % relatedness with respect to closely related species of the genus <I>Pedobacter</I> . Both strains contained iso-C<SUB>15 : 0</SUB> and C<SUB>16 : 1</SUB>ω6<I>c</I> and/or C<SUB>16 : 1</SUB>ω7<I>c</I> (summed feature 3) as the predominant fatty acids and MK-7 as the major isoprenoid quinone. The DNA G+C contents of strains THG-DN3.18<SUP>T</SUP> and THG-DN3.19<SUP>T</SUP> were 35.5 and 40.1 mol%, respectively. The genotypic analysis, biochemical properties, and phenotypic and chemotaxonomic characteristics indicate that strains THG-DN3.18<SUP>T</SUP> and THG-DN3.19<SUP>T</SUP> represent novel species of the genus <I>Pedobacter</I> , for which the names <I>Pedobacter daejeonensis</I> sp. nov. and <I>Pedobacter trunci</I> sp. nov. are proposed. The type strains are THG-DN3.18<SUP>T</SUP> ( = KCTC 42230<SUP>T</SUP> = JCM 30352<SUP>T</SUP>) and THG-DN3.19<SUP>T</SUP> ( = KCTC 42233<SUP>T</SUP> = JCM 30353<SUP>T</SUP>), respectively.</P>
Devosia humi sp. nov., isolated from soil of a Korean pine (Pinus koraiensis) garden
Du, Juan,Kook, MooChang,Akter, Shahina,Singh, Hina,Won, KyungHwa,Ngo, Hien T. T.,Yi, Tae-Hoo Microbiology Society 2016 International journal of systematic and evolutiona Vol.66 No.-
<P>A bacterial isolate, designated strain THG-MM1(T), was isolated from soil in Yongin region, Republic of Korea. Strain THG-MM1(T) was Gram-stain-negative, aerobic, non-motile and rod shaped. Based on 16S rRNA gene sequence comparisons, strain THG-MM1T was most closely related to Devosia insulae DS-56(T) (96.5 % 16S rRNA gene sequence similarity), followed by Devosia yakushimensis Yak96B(T) (95.7 %) and Devosia albogilva IPL15(T) (95.2 %). The G+C content of the genomic DNA was 63.7 mol%. The major cellular fatty acids were C-16 : 0, summed feature 8 (C-18 : (1)omega 7c and/or C-18 : (1)omega 6c) and C-18 : 0. The predominant isoprenoid quinone was ubiquinone-10 (Q-10). The major polar lipids were phosphatidylglycerol and an unidentified lipid. The combined phenotypic, chemotaxonomic and phylogenetic data showed that strain THG-MM1(T) represents a novel species of the genus Devosia, for which the name Devosia humi sp. nov. is proposed, with strain THG-MM1(T) (=KACC 18281(T)=CCTCC AB 2015121(T)) as the type strain.</P>
Pedobacter edaphicus sp. nov. isolated from forest soil in South Korea
Singh, Hina,Du, Juan,Ngo, Hien T. T.,Won, Kyung Hwa,Kim, Ki-Young,Yi, Tae-Hoo Springer-Verlag 2015 Archives of microbiology Vol.197 No.6
<P>A Gram-negative, yellow-colored, rod-shaped, strictly aerobic, motile bacterium was isolated from forest soil in Gyeongsang Province, South Korea. The strain was designated as THG-DA2.1(T). Cells of strain THG-DA2.1(T) grew optimally at pH 7.0, at temperature 28?C and in the presence of 0.5?% NaCl. Based on 16S rRNA gene sequence, strain THG-DA2.1(T) was shown to belong to the genus Pedobacter and shares highest sequence similarity with Pedobacter ginsengisoli KCTC 12576(T). The DNA G+C content was determined to be 42.3?mol?%. The predominant isoprenoid quinone was identified as menaquinone MK-7. The major cellular fatty acids of strain THG-DA2.1(T) were iso-C15:0 and C16:1 ω6c and/or C16:1 ω7c (summed feature 3*). Strain THG-DA2.1(T) contains phosphatidylethanolamine as major polar lipid, but an unidentified aminolipid, two unidentified phospholipids and two unidentified lipids were also detected. On the basis of the data obtained from polyphasic taxonomy in this study, strain THG-DA2.1(T) is considered to represent a novel species of the genus Pedobacter, for which the name Pedobacter edaphicus sp. nov. is proposed. The type strain is THG-DA2.1(T) (=KCTC 42232(T) =JCM 30351(T)).</P>
Sphingosinicella cucumeris sp. nov., isolated from soil of a cucumber garden.
Akter, Shahina,Du, Juan,Won, KyungHwa,Yin, Chang Shik,Kook, MooChang,Yi, Tae-Hoo N.V. Swets en Zeitlinger 2015 Antonie van Leeuwenhoek Vol.108 No.5
<P>A novel bacterial strain, THG-sc1(T), was isolated from a soil sample of a cucumber garden and was characterised by using a polyphasic approach. Cells were observed to be Gram-stain negative, non-motile and rod-shaped. The strain was found to be aerobic, catalase and oxidase positive, esculin and starch negative, and to have an optimum growth temperature and pH of 28??°C and 7.5, respectively. On the basis of 16S rRNA gene sequence analysis, strain THG-sc1(T) was found to belong to the genus Sphingosinicella and to be closely related to Sphingosinicella vermicomposti KCTC 22446(T), followed by Sphingosinicella xenopeptidilytica DSM 17130(T) and Sphingosinicella microcystinivorans KCTC 12019(T). The DNA G+C content was determined to be 60.8??mol% and the predominant respiratory quinone was identified as ubiquinone-10. The major polyamine was found to be sym-homospermidine. The major polar lipids were identified as sphingoglycolipid, phosphatidylethanolamine, phosphatidylglycerol and an unidentified phospholipid. The major fatty acids were identified as C18:1 ??7c, C16:0 and summed feature 3 (C16:1 ??7c and/or iso-C15:0 2-OH, as defined by MIDI). The results of the genotypic analysis, in combination with chemotaxonomic and physiological data, demonstrated that strain THG-sc1(T) represents a novel species within the genus Sphingosinicella, for which the name Sphingosinicella cucumeris is proposed. The type strain is THG-sc1(T) (=KACC 18279(T)??=??CCTCC AB 2015120(T)).</P>
Taibaiella yonginensis sp. nov., a bacterium isolated from soil of Yongin city.
Singh, Hina,Du, Juan,Won, KyungHwa,Yang, Jung-Eun,Akter, Shahina,Kim, Ki-Young,Yin, ChangShik,Yi, Tae-Hoo N.V. Swets en Zeitlinger 2015 Antonie van Leeuwenhoek Vol.108 No.3
<P>A novel bacterial strain, designated as THG-SC4(T), was isolated from a soil sample collected from Yongin city in South Korea. Cells of the strain were Gram-negative, aerobic, rod-shaped and non-motile. The strain grew optimally at 28-30?C; at pH 7.0 and in the absence of NaCl. Flexirubin-type pigments were found to be present. On the basis of 16S rRNA gene sequence similarity, strain THG-SC4(T) was shown to belong to the genus Taibaiella and shares high sequence similarity with Taibaiella smilacinae KCTC 32316(T) (95.4?%), followed by Taibaiella koreensis KACC 17171(T) (94.3?%) and Taibaiella chishuiensis JCM 19637(T) (94.2?%). The DNA G+C content of the novel isolate was determined to be 43.1?mol% and MK-7 was identified as the predominant isoprenoid quinone. The only polyamine was homospermidine. The major polar lipids were phosphatidylethanolamine, an unidentified aminophospholipid and an unidentified polar lipid. The predominant fatty acids were identified as iso-C15:0, iso-C15:1 G, C16:0 and iso-C17:03-OH. On the basis of data from this polyphasic taxonomic study, strain THG-SC4(T) is considered to represent a novel species of the genus Taibaiella, for which the name Taibaiella yonginensis sp. nov. is proposed. The type strain is THG-SC4(T) (=KACC 18372(T) = CCTCC AB 2014316(T)).</P>