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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>
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>
Weon, Hang-Yeon,Lee, Seon-Young,Kim, Byung-Yong,Noh, Hyung-Jun,Schumann, Peter,Kim, Jong-Shik,Kwon, Soon-Wo Microbiology Society 2007 International journal of systematic and evolutiona Vol.57 No.12
<P>Two Gram-negative, rod-shaped, thermophilic bacterial strains, HC145(T) and HC148(T), were isolated from a compost sample from a compost facility in Ichon, Korea. Sequencing of the 16S rRNA genes of HC145(T) and HC148(T) and comparative analyses of the resulting sequences clearly showed that these strains had a phylogenetic affiliation to the genus Ureibacillus. The level of 16S rRNA similarity between the two novel strains was 98.4 % and the levels of sequence similarity between them and existing Ureibacillus species were 97.8-98.1 (HC145(T)) and 97.4-98.7 % (HC148(T)). The DNA-DNA reassociation values between the two strains and the type strains of Ureibacillus species ranged from 38 to 51 %. The polar lipid profiles for both isolates consisted of phosphatidylglycerol, diphosphatidylglycerol, phospholipids and glycolipids of unknown composition. The major quinones were MK-8, MK-9 and MK-7, the peptidoglycan type was l-Lys<--d-Asp and the main cellular fatty acid was iso-C(16 : 0). The DNA G+C contents of strains HC145(T) and HC148(T) were 42.4 and 38.5 mol%, respectively. On the basis of the data from this polyphasic study, strains HC145(T) and HC148(T) represent members of the genus Ureibacillus, for which the names Ureibacillus composti sp. nov. and Ureibacillus thermophilus sp. nov., respectively, are proposed. The type strain of U. composti is HC145(T) (=KACC 11361(T) =DSM 17951(T)) and the type strain of U. thermophilus is HC148(T) (=KACC 11362(T) =DSM 17952(T)).</P>
Weon, Hang-Yeon,Kim, Byung-Yong,Baek, Youn-Kyung,Yoo, Seung-Hee,Kwon, Soon-Wo,Stackebrandt, Erko,Go, Seung-Joo Society for General Microbiology 2006 International journal of systematic and evolutiona Vol.56 No.5
<P>Two bacterial strains were isolated from greenhouse soils of Daejeon and Yangpyeong regions in Korea. The strains, designated GH1-9T and GH19-3T, were Gram-negative and aerobic, with rod-shaped cells. Their DNA G+C contents were 61.7 and 67.3 mol%, respectively. The major fatty acids of strain GH1-9T were iso-C16 : 0, iso-C15 : 0, iso-C14 : 0, iso-C17 : 1omega9c and iso-C11 : 0 3-OH and the major components of strain GH19-3T were iso-C16 : 0, iso-C15 : 0, C16 : 1omega7c alcohol, iso-C17 : 1omega9c and iso-C11 : 0 3-OH. None of the species of the genus Lysobacter with validly published names showed 16S rRNA gene sequence similarity values of more than 97 % with respect to the novel isolates. The closest sequence similarity of strain GH1-9T was with Lysobacter concretion is DSM 16239T (96.4 %), whereas strain GH19-3T showed the highest sequence similarity with Lysobacter enzymogenes DSM 2043T (96.6 %). Polyphasic taxonomic studies indicated that the two strains should be classified as representing novel members of the genus Lysobacter. The names Lysobacter daejeonensis sp. nov. and Lysobacter yangpyeongensis sp. nov. are proposed, with strains GH1-9T (=KACC 11406T=DSM 17634T) and GH19-3T (=KACC 11407T=DSM 17635T), respectively, as the type strains.</P>
Pseudomonas pohangensis sp. nov., isolated from seashore sand in Korea.
Weon, Hang-Yeon,Kim, Byung-Yong,Yoo, Seung-Hee,Baek, Youn-Kyung,Lee, Seon-Young,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 novel bacterium, designated strain H3-R18(T), was isolated from seashore sand collected from Homi cape, Pohang city, Korea. Cells were Gram-negative, aerobic, non-motile, cream-coloured, mesophilic and slightly halotolerant. 16S rRNA gene sequence analysis indicated that the organism was a member of the genus Pseudomonas, but the sequence showed < or =96.3 % sequence similarity to that of the type strains of all recognized Pseudomonas species. Highest sequence similarities were to Pseudomonas brenneri CFML 97-391(T) (96.3 %) and Pseudomonas migulae CIP 105470(T) (96.3 %). The major fatty acids were summed feature 3 and C(16 : 0), with lesser amounts of C(12 : 0), C(12 : 0) 3-OH, C(18 : 1)omega7c and C(14 : 0). The major isoprenoid quinone was Q-9. The DNA G+C content was 64.0 mol%. The phylogenetic, phenotypic and genetic properties of strain H3-R18(T) suggest that it represents a novel species, for which the name Pseudomonas pohangensis sp. nov. is proposed. The type strain is H3-R18(T) (=KACC 11517(T)=DSM 17875(T)).</P>