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Lim, Jee-Min,Jeon, Che Ok,Lee, Seung Sik,Park, Dong-Jin,Xu, Li-Hua,Jiang, Cheng-Lin,Kim, Chang-Jin Society for General Microbiology 2008 International journal of systematic and evolutiona Vol.58 No.2
<P>A Gram-negative, non-motile and moderately halophilic rod-shaped bacterium, designated strain BH206(T), was isolated from a saline lake of Xinjiang province in China. The isolate showed catalase-positive and oxidase-negative reactions and did not reduce nitrate. Phylogenetic analysis based on 16S rRNA gene sequences showed that the isolate was most closely related to [Salegentibacter] catena HY1(T) with 95.8 % 16S rRNA gene sequence similarity, and formed a tight phyletic group with [Salegentibacter] catena HY1(T) with a bootstrap value of 99 % within the family Flavobacteriaceae. However, strain BH206(T) and [Salegentibacter] catena HY1(T) formed a phyletic lineage distinct from other Salegentibacter species. The 16S rRNA gene sequence similarities of strain BH206(T) with other related type species were lower than 94.6 %. On the basis of physiological and molecular properties, it is clear that [Salegentibacter] catena should be reclassified in the new genus Salinimicrobium as Salinimicrobium catena gen. nov., comb. nov. (type strain HY1(T)=CGMCC 1.6101(T)=JCM 14015(T)) and that strain BH206(T) represents a novel species within the genus Salinimicrobium, for which the name Salinimicrobium xinjiangense sp. nov. is proposed. The type strain of Salinimicrobium xinjiangense is BH206(T) (=KCTC 12883(T)=DSM 19287(T)).</P>
Weon, Hang-Yeon,Kim, Byung-Yong,Lee, Chang-Muk,Hong, Seung-Beom,Jeon, Young-Ah,Koo, Bon-Sung,Kwon, Soon-Wo Society for General Microbiology 2009 International journal of systematic and evolutiona Vol.59 No.8
<P>A Gram-negative, rod-shaped, non-spore-forming bacterium, designated strain R2A36-4T, was isolated from greenhouse soil and subjected to a polyphasic taxonomic analysis. 16S rRNA gene sequence analysis revealed that the strain represented a novel member of the family Sphingobacteriaceae. Its nearest phylogenetic neighbour was the type strain of [Flexibacter] canadensis CIP 104802T (93.2% 16S rRNA gene sequence similarity). Strain R2A36-4T and [F.] canadensis CIP 104802T fell in a distinct cluster within the family Sphingobacteriaceae. Strain R2A36-4T contained MK-7 as the predominant quinone. Strain R2A36-4T and [F.] canadensis CIP 104802T had iso-C15:0, iso-C17:0 3-OH, summed feature 3 and C15:1omega6c as the major fatty acids. Strain R2A36-4T could be distinguished from [F.] canadensis on the basis of several physiological properties and fatty acid compositions. Based on phenotypic characterization and 16S rRNA gene sequence analysis, strain R2A36-4T represents a novel species within a new genus, for which the name Solitalea koreensis gen. nov., sp. nov. is proposed. The type strain of Solitalea koreensis is strain R2A36-4T (=KACC 12953T=DSM 21342T). It is also proposed that [F.] canadensis be transferred to this genus as Solitalea canadensis comb. nov. (type strain UASM 9DT=ATCC 29591T=CIP 104802T=DSM 3403T=NBRC 15130T=JCM 21819T=KACC 13276T=LMG 8368T).</P>
Daeguia caeni gen. nov., sp. nov., isolated from sludge of a textile dye works.
Yoon, Jung-Hoon,Kang, So-Jung,Park, Sooyeon,Oh, Tae-Kwang Society for General Microbiology 2008 International journal of systematic and evolutiona Vol.58 No.1
<P>A Gram-negative, non-spore-forming, rod-shaped bacterial strain, K107(T), was isolated from sludge collected from a textile dye works in Korea and its taxonomic position was investigated by means of a polyphasic analysis. Strain K107(T) contained Q-10 as the predominant ubiquinone. The major fatty acids (>10% of total fatty acids) were C(18:1)omega7c and C(18:1) 2-OH. The DNA G+C content was 57.0 mol%. A phylogenetic analysis based on 16S rRNA gene sequences showed that strain K107(T) was closely related to the genera Mycoplana, Brucella and Ochrobactrum. Strain K107(T) exhibited 16S rRNA gene sequence similarity values of 96.3-97.1% with respect to the type strains of two Mycoplana species and 94.8-96.8% with respect to members of the genera Brucella and Ochrobactrum. A phylogenetic analysis based on recA gene sequences showed that strain K107(T) forms a distinct phylogenetic lineage within the Alphaproteobacteria. The recA gene sequence of strain K107(T) showed similarity values of 84.5% with respect to type strains of Brucella species and values of 77.6-83.1% with respect to members of the genera Pseudochrobactrum, Ochrobactrum and Mycoplana. Strain K107(T) could be differentiated from phylogenetically related genera by differences in phenotypic properties and fatty acid profiles. On the basis of phenotypic, chemotaxonomic and phylogenetic data, strain K107(T) represents a novel genus and species, for which the name Daeguia caeni gen. nov., sp. nov. is proposed. The type strain of Daeguia caeni is strain K107(T) (=KCTC 12981(T) =CCUG 54520(T)).</P>
Phycicoccus dokdonensis sp. nov., isolated from soil.
Yoon, Jung-Hoon,Lee, Soo-Young,Kang, So-Jung,Oh, Tae-Kwang Society for General Microbiology 2008 International journal of systematic and evolutiona Vol.58 No.3
<P>A Gram-positive, non-motile, coccoid-shaped bacterium, designated strain DS-8(T), was isolated from soil from Dokdo, Korea, and its taxonomic position was investigated by using a polyphasic study. Strain DS-8(T) grew optimally at 30 degrees C and pH 6.5-7.5 in the presence of 0.5-1.0 % (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain DS-8(T) joined the type strain of Phycicoccus jejuensis, with a bootstrap resampling value of 92.5 %, and shared 96.5 % 16S rRNA gene sequence similarity with P. jejuensis. The cell-wall peptidoglycan type was based on meso-diaminopimelic acid and the acyl type of the muramic acid was acetyl. The predominant menaquinone was MK-8(H(4)). The major fatty acids were iso-C(15 : 0) and iso-C(16 : 0). Major polar lipids detected in strain DS-8(T) were phosphatidylinositol, phosphatidylglycerol, diphosphatidylglycerol and two unidentified phospholipids. The DNA G+C content was 70.7 mol%. DNA-DNA relatedness data and differential phenotypic properties, together with the phylogenetic distinctiveness, revealed that strain DS-8(T) differs from P. jejuensis. On the basis of the data obtained, strain DS-8(T) is considered to represent a novel species of the genus Phycicoccus, for which the name Phycicoccus dokdonensis sp. nov. is proposed. The type strain is DS-8(T) (=KCTC 19248(T)=CCUG 54521(T)).</P>
Nedashkovskaya, Olga I,Kwon, Kae Kyoung,Kim, Sang-Jin Society for General Microbiology 2009 International journal of systematic and evolutiona Vol.59 No.4
<P>The accurate taxonomic position of Donghaeana dokdonensis DSW-6(T) was investigated. Phylogenetic analysis revealed that the 16S rRNA gene sequences of the strain studied and of Persicivirga xylanidelens SW256(T) shared 98.2 % similarity. On the basis of phylogenetic evidence, phenotypic data and DNA-DNA reassociation values, it is proposed that strain DSW-6(T) be reclassified as Persicivirga dokdonensis comb. nov. Emended descriptions of the genus Persicivirga and of P. xylanidelens are also proposed.</P>
Choi, Dong Han,Noh, Jae Hoon,Lee, Charity M,Rho, Seungmok Society for General Microbiology 2008 International journal of systematic and evolutiona Vol.58 No.12
<P>A unicellular cyanobacterium, designated KORDI 51-2(T), was isolated from surface seawater of Chuuk lagoon, Micronesia. The cells were wine-coloured rods and emitted red fluorescence under green excitation of an epifluorescence microscope. Thus, morphologically, the strain resembled Synechococcus species. However, based on 16S rRNA gene sequence similarities between strain KORDI 51-2(T) and related strains belonging to cyanobacteria, the novel strain was distantly related to members of the 'Halothece' cluster. However, sequence similarities between strain KORDI 51-2(T) and members of the 'Halothece' cluster were very low, ranging from 90.7 to 92.1 %, and phylogenetic analyses showed that the strain formed a distinct branch. Therefore, a polyphasic characterization including morphology, physiology and pigment composition was conducted to elucidate the taxonomic position of strain KORDI 51-2(T). The strain grew within a temperature range of 25-35 degrees C and a salinity range of 2-7 %. The optimal temperature and salinity were about 30 degrees C and 5 %, respectively. Strain KORDI 51-2(T) contained phycoerythrin, and the dominant carotenoid pigments were zeaxanthin, beta-carotene and echinenone. The DNA G+C content was 60.5 mol%. Based on phylogenetic analysis of the 16S rRNA gene sequence, and the physiological data and pigment compositions, strain KORDI 51-2(T) is considered to represent a new genus and novel species of cyanobacteria for which the name Rubidibacter lacunae gen. nov., sp. nov. is proposed. The type strain is KORDI 51-2(T) (=KCTC 40015(T)=UTEX L2944(T)).</P>