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Massilia jejuensis sp. nov. and Naxibacter suwonensis sp. nov., isolated from air samples
Weon, Hang-Yeon,Yoo, Seung-Hee,Kim, Soo-Jin,Kim, Yi-Seul,Anandham, Rangasamy,Kwon, Soon-Wo Microbiology Society 2010 International journal of systematic and evolutiona Vol.60 No.8
<P>Two Gram-negative, motile, rod-shaped bacteria (strains 5317J-18<SUP>T</SUP> and 5414S-25<SUP>T</SUP>) were isolated from air samples collected in the Jeju Island and Suwon region of Korea, respectively. Phylogenetically, strain 5317J-18<SUP>T</SUP> was grouped with the genus <I>Massilia</I> with <I>Massilia brevitalea</I> byr23-80<SUP>T</SUP> as the closest relative (98.8 % sequence similarity). Strain 5414S-25<SUP>T</SUP> was affiliated with the genus <I>Naxibacter</I> with <I>Naxibacter haematophilus</I> CCUG 38318<SUP>T</SUP> as the closest relative (98.8 % sequence similarity). The mean DNA-DNA relatedness values between strain 5317J-18<SUP>T</SUP> and <I>M. brevitalea</I> DSM 18925<SUP>T</SUP> and <I>Massilia aurea</I> DSM 18055<SUP>T</SUP> were 43 and 36 %, respectively. The mean DNA-DNA hybridization values between strain 5414S-25<SUP>T</SUP> and <I>N. haematophilus</I> KACC 13771<SUP>T</SUP>, <I>M. brevitalea</I> DSM 18925<SUP>T</SUP>, <I>Massilia timonae</I> DSM 16850<SUP>T</SUP>, <I>Naxibacter varians</I> KACC 13770<SUP>T</SUP>, <I>M. aurea</I> DSM 18055<SUP>T</SUP>, <I>Massilia lutea</I> DSM 17473<SUP>T</SUP> and <I>Massilia albidiflava</I> DSM 17472<SUP>T</SUP> ranged from 33 to 42 %. Both novel strains had ubiquinone Q-8 as the predominant isoprenoid quinone and summed feature 3 (comprising iso-C15 : 0 2-OH and/or C16 : 1<I>ω</I>7<I>c</I>) and C16 : 0 as the major fatty acids. Both strains also showed similar polar lipid profiles with phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol as the major polar lipids. The DNA G+C contents of strains 5317J-18<SUP>T</SUP> and 5414S-25<SUP>T</SUP> were 66.1 and 67.8 %, respectively. On the basis of their phenotypic, chemotaxonomic and genotypic characteristics, the new strains represent novel species in the genera <I>Massilia</I> and <I>Naxibacter</I>. Strain 5317J-18<SUP>T</SUP> (=KACC 12634<SUP>T</SUP>=DSM 21309<SUP>T</SUP>) is proposed as the type strain of <I>Massilia jejuensis</I> sp. nov. and strain 5414S-25<SUP>T</SUP> (=KACC 12635<SUP>T</SUP>=DSM 21311<SUP>T</SUP>) is proposed as the type strain of <I>Naxibacter suwonensis</I> sp. nov.</P>
Kaistia soli sp. nov., isolated from a wetland in Korea.
Weon, Hang-Yeon,Lee, Chang-Muk,Hong, Seung-Beom,Kim, Byung-Yong,Yoo, Seung-Hee,Kwon, Soon-Wo,Go, Seung-Joo Society for General Microbiology 2008 International journal of systematic and evolutiona Vol.58 No.7
<P>A bacterial strain, 5YN9-8(T), was isolated from a peat layer in Yongneup, Republic of Korea. It was strictly aerobic, Gram-negative, non-motile, short rod- or coccus-shaped and produced ivory-pigmented colonies. Results of 16S rRNA gene sequence analyses indicated a close relationship between this isolate and Kaistia granuli Ko04(T) (97.2 % similarity) and Kaistia adipata Chj404(T) (96.2 % similarity), members of the order Rhizobiales within the Alphaproteobacteria. Predominant cellular fatty acids of strain 5YN9-8(T) were C(18 : 1)omega7c, C(18 : 0), C(19 : 0)omega8c cyclo and C(16 : 0). The DNA G+C content was 67.0 mol%. Phylogenetic, phenotypic and chemotaxonomic data accumulated in this study revealed that the isolate represents a novel species of the genus Kaistia, for which the name Kaistia soli sp. nov. is proposed; strain 5YN9-8(T) (=KACC 12605(T) =DSM 19436(T)) is the type strain.</P>
Weon, Hang-Yeon,Kim, Byung-Yong,Kwon, Soon-Wo,Park, In-Cheol,Cha, In-Bae,Tindall, Brian J.,Stackebrandt, Erko,Trü,per, Hans G.,Go, Seung-Joo Microbiology Society 2005 International journal of systematic and evolutiona Vol.55 No.6
<P>A bacterial strain, designated 4M15<SUP>T</SUP>, was isolated from cotton-waste composts used as mushroom cultivation in South Korea. Properties of this isolate were studied on the basis of physiological and biochemical characteristics, fatty acid profile, isoprenoid quinone, DNA G+C content and phylogenetic position based on 16S rRNA gene sequence analysis. The strain was found to form a distinct phylogenetic lineage related to the family ‘<I>Flexibacteraceae</I>’ within the phylum ‘<I>Bacteroidetes</I>’. No recognized species showed >85 % 16S rRNA gene sequence similarity to strain 4M15<SUP>T</SUP>. The fatty acid profile of strain 4M15<SUP>T</SUP> included C16 : 1<I>ω</I>7<I>c</I>/iso-C15 : 0 2-OH (30·5 %), iso-C15 : 0 (24·2 %), iso-C15 : 0 2-OH/C16 : 1<I>ω</I>7<I>c</I> (15·9), iso-C17 : 0 3-OH (10·5 %) and C16 : 0 (5·6 %). The major isoprenoid quinone was menaquinone MK-7. The DNA G+C content was 33·0 mol%. Cells were Gram-negative, strictly aerobic, rod-shaped, non-motile, catalase-positive, oxidase-positive and flexirubin-positive. The strain hydrolysed aesculin, gelatin, starch and tyrosine. Several phenotypic tests could be used to differentiate strain 4M15<SUP>T</SUP> from other members of the family ‘<I>Flexibacteraceae</I>’. On the basis of the data presented, strain 4M15<SUP>T</SUP> should be assigned to the phylum ‘<I>Bacteroidetes</I>’ as a novel genus and species, for which the name <I>Leadbetterella byssophila</I> gen. nov., sp. nov. is proposed. The type strain is 4M15<SUP>T</SUP> (=KACC 11308<SUP>T</SUP>=DSM 17132<SUP>T</SUP>).</P>
Weon, Hang-Yeon,Kim, Byung-Yong,Joa, Jae-Ho,Son, Jung-A,Song, Myung-Hee,Kwon, Soon-Wo,Go, Seung-Joo,Yoon, Sang-Hong Society for General Microbiology 2008 International journal of systematic and evolutiona Vol.58 No.1
<P>Two bacterial strains isolated from air samples, 5317S-33(T) and 5413S-11(T), were characterized by determining their phenotypic characteristics, cellular fatty acid profiles and phylogenetic positions based on 16S rRNA gene sequence analysis. 16S rRNA gene sequence analysis showed that these isolates belonged to the genus Methylobacterium. Strain 5317S-33(T) was most closely related to Methylobacterium adhaesivum AR27(T) (97.9% sequence similarity). Strain 5413S-11(T) was most closely related to Methylobacterium fujisawaense DSM 5686(T) (97.3% sequence similarity), Methylobacterium oryzae CBMB20(T) (97.1% similarity) and Methylobacterium radiotolerans JCM 2831(T) (97.0% similarity). Cells of both strains were strictly aerobic, Gram-negative, motile and rod-shaped. The major fatty acid was C(18:1)omega7c. The G+C contents of the genomic DNA were 68.0 mol% for strain 5317S-33(T) and 73.2 mol% for strain 5413S-11(T). According to DNA-DNA hybridization data, strain 5317S-33(T) showed a level of DNA-DNA relatedness of 33 % with M. adhaesivum DSM 17169(T), and strain 5413S-11(T) showed low levels of DNA-DNA relatedness (<35%) with M. fujisawaense DSM 5686(T), M. oryzae CBMB20(T) and M. radiotolerans DSM 1819(T). On the basis of this polyphasic analysis, it was concluded that strains 5317S-33(T) and 5413S-11(T) represent two novel species within the genus Methylobacterium, for which the names Methylobacterium iners sp. nov. (type strain 5317S-33(T) =KACC 11765(T) =DSM 19015(T)) and Methylobacterium aerolatum sp. nov. (type strain 5413S-11(T) =KACC 11766(T) =DSM 19013(T)) are proposed.</P>
Loktanella koreensis sp. nov., isolated from sea sand in Korea.
Weon, Hang-Yeon,Kim, Byung-Yong,Yoo, Seung-Hee,Kim, Jong-Shik,Kwon, Soon-Wo,Go, Seung-Joo,Stackebrandt, Erko Society for General Microbiology 2006 International journal of systematic and evolutiona Vol.56 No.9
<P>A bacterial strain, GA2-M3(T), isolated from a sea-sand sample in Korea, was subjected to polyphasic taxonomic characterization. Cells of strain GA2-M3(T) were Gram-negative, non-motile, non-spore-forming and short rod- to ovoid-shaped. Comparative 16S rRNA gene sequencing studies confirmed that the bacterium fell within the radiation of the genus Loktanella. Similarity levels between the 16S rRNA gene sequence of strain GA2-M3(T) and those of type strains of Loktanella species with validly published names were 93.5-96.1 %; highest sequence similarity was with Loktanella rosea. The G+C content of the genomic DNA of strain GA2-M3(T) was 60.0 mol% and the predominant ubiquinone was Q-10. Major fatty acids were 18 : 1omega7c, 18 : 0 and 18 : 1omega7c 11-methyl. On the basis of the evidence presented, it is proposed that strain GA2-M3(T) represents a novel species, for which the name Loktanella koreensis sp. nov. is proposed. The type strain is GA2-M3(T) (=KACC 11519(T)=DSM 17925(T)).</P>
Knoellia aerolata sp. nov., isolated from an air sample in Korea
Weon, Hang-Yeon,Kim, Byung-Yong,Schumann, Peter,Kroppenstedt, Reiner M.,Noh, Hyung-Jun,Park, Chan-Won,Kwon, Soon-Wo Microbiology Society 2007 International journal of systematic and evolutiona Vol.57 No.12
<P>An aerobic, Gram-positive, non-motile, non-spore-forming, rod-coccus-shaped bacterium, strain 5317S-21(T), was isolated from an air sample from Suwon city, Republic of Korea. The isolate was able to grow within a pH range of 5.0-9.0 and a temperature range of 5-35 degrees C and it tolerated up to 2 % (w/v) NaCl. The cell-wall peptidoglycan contained meso-diaminopimelic acid as diagnostic diamino acid. The predominant isoprenoid quinone was MK-8(H(4)). The major polar lipids were phosphatidylinositol, phosphatidylethanolamine and diphosphatidylglycerol; phosphatidylglycerol and several unknown phospholipids were also detected. Mycolic acids were absent. The only whole-cell sugar was glucose. The major cellular fatty acids were iso-C(16 : 0), C(17 : 1)omega8c and iso-C(15 : 0). 16S rRNA gene sequence analysis indicated that strain 5317S-21(T) was related phylogenetically to members of the genus Knoellia, with 97.4 % sequence similarity to the type strains of Knoellia sinensis and Knoellia subterranea. The G+C content of the genomic DNA of strain 5317S-21(T) was 73 mol%. Levels of DNA-DNA relatedness between strain 5317S-21(T) and the type strains of Knoellia sinensis and Knoellia subterranea were 37 and 41 %, respectively. It was concluded that strain 5317S-21(T) represents a novel species of the genus Knoellia, for which the name Knoellia aerolata sp. nov. is proposed. The type strain is 5317S-21(T) (=KACC 20583(T) =DSM 18566(T)).</P>
Tsukamurella soli sp. nov., isolated from soil
Weon, Hang-Yeon,Yoo, Seung-Hee,Anandham, Rangasamy,Schumann, Peter,Kroppenstedt, Reiner M.,Kwon, Soon-Wo,Stackebrandt, Erko Microbiology Society 2010 International journal of systematic and evolutiona Vol.60 No.7
<P>A Gram-positive, rod-shaped, catalase-positive, oxidase-negative, white-coloured bacterium, designated strain JS18-1<SUP>T</SUP>, was isolated from a soil sample collected from Halla mountain, Jeju island, Korea. 16S rRNA gene sequence analysis revealed that the strain was most closely related to members of the genus <I>Tsukamurella</I> with levels of sequence similarity of 95.4-96.5 %. Strain JS18-1<SUP>T</SUP> shared highest 16S rRNA gene sequence similarity with <I>Tsukamurella strandjordii</I> DSM 44573<SUP>T</SUP> (96.5 %), <I>Tsukamurella carboxydivorans</I> Y2<SUP>T</SUP> (96.4 %) and <I>Tsukamurella tyrosinosolvens</I> DSM 44234<SUP>T</SUP> (96.4 %). The G+C content of the total DNA of strain JS18-1<SUP>T</SUP> was 70 mol%. The cell-wall peptidoglycan type was A1<I>γ</I> and mycolic acids were also detected. The predominant polar lipids were diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylinositol. The major quinone was menaquinone-9 (MK-9) and major cell-wall sugars were arabinose, ribose and glucose. The major fatty acids (>10 % of the total fatty acids) were C16 : 0, C18 : 1<I>ω</I>9<I>c</I>, C18 : 0 10-methyl and summed feature 3 (C16 : 1<I>ω</I>7<I>c</I> and/or iso-C15 : 0 2-OH). Phylogenetic analysis based on 16S rRNA gene sequences and chemotaxonomic, biochemical and physiological characteristics indicate that strain JS18-1<SUP>T</SUP> represents a novel species of the genus <I>Tsukamurella</I>, for which the name <I>Tsukamurella soli</I> sp. nov. is proposed. The type strain is JS18-1<SUP>T</SUP> (=KACC 20764<SUP>T</SUP>=DSM 45046<SUP>T</SUP>).</P>