scholarly journals Sulfitobacter delicatus sp. nov. and Sulfitobacter dubius sp. nov., respectively from a starfish (Stellaster equestris) and sea grass (Zostera marina)

2004 ◽  
Vol 54 (2) ◽  
pp. 475-480 ◽  
Author(s):  
Elena P. Ivanova ◽  
Nataliya M. Gorshkova ◽  
Tomoo Sawabe ◽  
Natalia V. Zhukova ◽  
Karin Hayashi ◽  
...  

On the basis of data from phenotypic and genotypic characterization and analysis of 16S rRNA gene sequences, two novel species belonging to the genus Sulfitobacter are described. Strains KMM 3584T, a pale-yellowish, non-motile strain isolated from a starfish (Stellaster equestris), and KMM 3554T, which is motile by means of a single subpolar flagellum and was isolated from sea grass (Zostera marina), are marine, Gram-negative, aerobic, rod-shaped organisms. Both strains have the ability to degrade gelatin, but not casein, chitin, agar, DNA, Tween 80 or starch. Strain KMM 3584T decomposed alginate and grew at NaCl concentrations of 1–8 % and temperatures of 12–37°C, whereas strain KMM 3554T grew in 1–12% NaCl and at temperatures of 10–30°C. The predominant fatty acid was 18:1ω7, amounting to up to 80% of the total fatty acids. The other characteristic feature was the presence of 18:2 isomers. The DNA G+C contents of KMM 3584T and KMM 3554T were respectively 60·0 and 63·7 mol%. The level of DNA similarity between the two strains was 33%. DNA from KMM 3584T and KMM 3554T had hybridization values of 5–24% and 10–41%, respectively, with DNA from the type strains of Sulfitobacter pontiacus, Sulfitobacter brevis, Sulfitobacter mediterraneus and Staleya guttiformis. It is proposed that strains KMM 3584T (=LMG 20554T=ATCC BAA-321T) and KMM 3554T (=LMG 20555T=ATCC BAA-320T) represent two novel species, Sulfitobacter delicatus sp. nov. and Sulfitobacter dubius sp. nov., respectively.

Author(s):  
Yong-Taek Jung ◽  
Soo-Young Lee ◽  
Won-Chan Choi ◽  
Tae-Kwang Oh ◽  
Jung-Hoon Yoon

A Gram-negative, non-sporulating, non-flagellated rod, designated BR-9T, was isolated from soil collected on the Korean peninsula. Strain BR-9T grew optimally at pH 6.0–7.0, at 30 °C and in the absence of NaCl. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain BR-9T belonged to the genus Pedobacter and clustered with Pedobacter insulae DS-139T and Pedobacter koreensis WPCB189T. Strain BR-9T exhibited 98.2 and 97.5 % 16S rRNA gene sequence similarity with P. insulae DS-139T and P. koreensis WPCB189T, respectively, and <96.7 % sequence similarity with the type strains of other species in the genus Pedobacter. Strain BR-9T contained MK-7 as the predominant menaquinone and iso-C15 : 0 and summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH) as the major fatty acids. The DNA G+C content of strain BR-9T was 38.5 mol%. DNA–DNA relatedness between strain BR-9T and P. insulae DS-139T and P. koreensis KCTC 12536T was 3.4–4.2 %, which indicated that the isolate was genetically distinct from these type strains. Strain BR-9T was also distinguishable by differences in phenotypic properties. On the basis of the data presented, strain BR-9T is considered to represent a novel species of the genus Pedobacter, for which the name Pedobacter boryungensis sp. nov. is proposed. The type strain is BR-9T ( = KCTC 23344T  = CCUG 60024T).


2007 ◽  
Vol 57 (5) ◽  
pp. 947-950 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
So-Jung Kang ◽  
Jung-Sook Lee ◽  
Tae-Kwang Oh

A Gram-negative, rod-shaped, Flavobacterium-like bacterial strain, DS-20T, was isolated from soil from the island of Dokdo, Korea, and subjected to a polyphasic taxonomic study. Strain DS-20T grew optimally at pH 6.5–7.0 and 25 °C. It contained MK-6 as the predominant menaquinone and iso-C15 : 0, iso-C17 : 0 3-OH and iso-C17 : 1 ω9c as the major fatty acids. The DNA G+C content was 38.2 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain DS-20T belonged to the genus Flavobacterium. Levels of 16S rRNA gene sequence similarity between strain DS-20T and the type strains of recognized Flavobacterium species were below 94.9 %. Strain DS-20T differed from phylogenetically related Flavobacterium species in several phenotypic characteristics. On the basis of its phenotypic and phylogenetic distinctiveness, strain DS-20T was classified in the genus Flavobacterium as representing a novel species, for which the name Flavobacterium terrigena sp. nov. is proposed. The type strain is DS-20T (=KCTC 12761T=DSM 17934T).


2011 ◽  
Vol 61 (11) ◽  
pp. 2712-2716 ◽  
Author(s):  
Yingxue Luo ◽  
Jing Xiao ◽  
Yin Wang ◽  
Jing Xu ◽  
Shujie Xie ◽  
...  

The taxonomic position of an actinomycete isolated from deep-sea sediment from the Indian Ocean was determined by using a polyphasic approach. The presence of iso-C15 : 0, anteiso-C15 : 0, iso-C16 : 0, iso-C17 : 0 and anteiso-C17 : 0 as the major cellular fatty acids, ll-diaminopimelic acid as the characteristic diamino acid, and MK-9(H4, H6 and H8) as the major menaquinones supported the affiliation of strain IH32-1T to the genus Streptomyces. Comparison of 16S rRNA gene sequences showed that strain IH32-1T exhibited highest similarities to the type strains of Streptomyces globosus (97.6 %) and Streptomyces toxytricini (97.6 %). However, DNA–DNA relatedness values between strain IH32-1T and the type strains of S. globosus and S. toxytricini were determined as 55.2±4.7 and 38.3±2.5 %, respectively. Based on its chemotaxonomic, phenotypic and genotypic characteristics, strain IH32-1T is considered to represent a novel species in the genus Streptomyces, for which the name Streptomyces indicus sp. nov. is proposed. The type strain is IH32-1T ( = DSM 42001T = CGMCC 4.5727T).


2007 ◽  
Vol 57 (9) ◽  
pp. 1952-1955 ◽  
Author(s):  
Shoichi Hosoya ◽  
Akira Yokota

A Gram-negative, motile, rod-shaped bacterium (WSF2T) was isolated from coastal seawater of the Boso Peninsula in Japan. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain WSF2T represented a separate lineage within the genus Pseudovibrio. The DNA G+C content of strain WSF2T was 51.7 mol%. DNA–DNA hybridization values between strain WSF2T and the type strains of Pseudovibrio species were significantly lower than those accepted as the phylogenetic definition of a species. Furthermore, some biochemical characteristics indicated that strain WSF2T differed from other Pseudovibrio species. Based on these characteristics, it is proposed that the isolate represents a novel species, Pseudovibrio japonicus sp. nov. The type strain is WSF2T (=IAM 15442T=NCIMB 14279T=KCTC 12861T).


2012 ◽  
Vol 62 (Pt_8) ◽  
pp. 1809-1813 ◽  
Author(s):  
Jie Liu ◽  
Ling-Ling Yang ◽  
Chuan-Kun Xu ◽  
Jia-Qin Xi ◽  
Fa-Xiang Yang ◽  
...  

A novel Gram-negative strain, designated M-SX103T, was isolated from a fresh leaf of Nicotiana tabacum Linn. collected at Yuxi City, Yunnan province, China, and subjected to a polyphasic taxonomic study. Growth occurred at 10–40 °C, at pH 6.0–9.0 and with 0–3 % (w/v) NaCl. The predominant isoprenoid quinone was MK-7. The major cellular fatty acids of strain M-SX103T were iso-C15 : 0, iso-C17 : 0 3-OH and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c). The G+C content of the genomic DNA was 40.6 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that the isolate belongs to the genus Sphingobacterium , sharing 95.4–89.7 % sequence similarity with type strains of members of the genus Sphingobacterium ; it was most closely related to Sphingobacterium composti T5-12T. On the basis of the taxonomic evidence, a novel species, Sphingobacterium nematocida sp. nov., is proposed. The type strain is M-SX103T ( = JCM 17339T = CCTCC AB 2010390T).


2007 ◽  
Vol 57 (8) ◽  
pp. 1765-1769 ◽  
Author(s):  
Yu Zhou ◽  
Jing Dong ◽  
Xu Wang ◽  
Xing Huang ◽  
Ke-Yun Zhang ◽  
...  

A Gram-negative, non-motile, rod-shaped bacterial strain, designated CW-E 2T, was isolated from a polluted soil sample collected from Jiangsu Province, China. A taxonomic study of the isolate, including phylogenetic analysis based on 16S rRNA gene sequences and phenotypic characteristics, was carried out. The predominant menaquinone was MK-6 and the major fatty acids were i-C15 : 0, i-C17 : 0 3-OH, i-C17 : 1 ω9c and summed feature 4. The G+C content of the DNA was 37.2 mol%. Based on phenotypic and genotypic characteristics, strain CW-E 2T represents a novel species of the genus Chryseobacterium for which the name Chryseobacterium flavum sp. nov. is proposed. The type strain is CW-E 2T (=KCTC 12877T=CCTCC AB 206147T).


2011 ◽  
Vol 61 (7) ◽  
pp. 1667-1670 ◽  
Author(s):  
M. Tseng ◽  
H. C. Liao ◽  
W. P. Chiang ◽  
G. F. Yuan

A novel actinomycete, designated strain 06182M-1T, was isolated from a mangrove soil sample collected from Chiayi County in Taiwan. Phylogenetic analysis based on 16S rRNA gene sequences revealed levels of similarity of 97.0–98.8 % to the type strains of recognized species of the genus Isoptericola. Chemotaxonomic data also supported the placement of strain 06182M-1T within the genus Isoptericola. However, the low levels of DNA–DNA relatedness between the novel strain and the type strains of recognized species of the genus Isoptericola, in combination with differential phenotypic data, demonstrate that strain 06182M-1T represents a novel species of the genus Isoptericola, for which the name Isoptericola chiayiensis sp. nov. is proposed. The type strain is 06182M-1T ( = BCRC 16888T  = KCTC 19740T).


2015 ◽  
Vol 65 (Pt_7) ◽  
pp. 2130-2134 ◽  
Author(s):  
Sha Liu ◽  
Dong Jin ◽  
Ruiting Lan ◽  
Yiting Wang ◽  
Qiong Meng ◽  
...  

The taxonomic position of a group of seven closely related lactose-negative enterobacterial strains, which were isolated from fresh faecal samples of Marmota himalayana collected from the Qinghai-Tibetan plateau, China, was determined by using a polyphasic approach. Cells were Gram-reaction-negative, non-sporulating, non-motile, short rods (0.5–1 × 1–2.5 μm). By 16S rRNA gene sequences, the representative strain, HT073016T, showed highest similarity values with Escherichia fergusonii ATCC 35469T at 99.3 %, Escherichia coli ATCC 11775T at 99.2 %, Escherichia albertii LMG 20976T at 98.9 %, Escherichia hermannii CIP 103176T at 98.4 %, and Escherichia vulneris ATCC 33821T at 97.7 %. Phylogenetic analysis based on the 16S rRNA gene sequences showed that the seven strains formed a monophyletic group with five other species of the genus Escherichia. Digital DNA–DNA hybridization studies between strain HT073016T and five other species of the genus Escherichia showed that it shared less than 70 % DNA–DNA relatedness with all known species of the genus Escherichia, supporting the novel species status of the strain. The DNA G+C content of strain HT073016T was 53.8 mol%. On the basis of phenotypic and phylogenetic characteristics, strain HT073016T and the six other HT073016T-like strains were clearly distinct from the type strains of other recognized species of the genus Escherichia and represent a novel species of the genus Escherichia, for which the name Escherichia marmotae sp. nov. is proposed, with HT073016T ( = CGMCC 1.12862T = DSM 28771T) as the type strain.


2007 ◽  
Vol 57 (6) ◽  
pp. 1327-1330 ◽  
Author(s):  
Shoichi Hosoya ◽  
Akira Yokota

Two strains of gliding, agarolytic bacteria, strains YS10T and YML5, were isolated from coastal seawater off Kamogawa, Japan. Phylogenetic analysis based on 16S rRNA gene sequences showed that the novel isolates represent a separate lineage within the genus Flammeovirga. DNA–DNA hybridization values between these isolates and the type strains of species of the genus Flammeovirga were significantly lower than those accepted as threshold values for the phylogenetic definition of a species. Furthermore, some of the phenotypic characteristics indicate that the isolates differ from other Flammeovirga species. Based on these differences, it is suggested that the isolates represent a novel species, for which the name Flammeovirga kamogawensis sp. nov. is proposed. The type strain is YS10T (=IAM 15451T=NCIMB 14281T).


2007 ◽  
Vol 57 (6) ◽  
pp. 1355-1359 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
So-Jung Kang ◽  
Tae-Kwang Oh

A Gram-negative, rod-shaped bacterial strain, K105T, was isolated from wastewater of a textile dye works in Korea and subjected to a polyphasic taxonomic study. Strain K105T grew optimally at pH 6.5–7.5 and 30–37 °C. It contained MK-6 as the predominant menaquinone and iso-C15 : 0, iso-C17 : 1 ω9c, iso-C17 : 0 3-OH and summed feature 3 (C16 : 1 ω7c and/or iso-C15 : 0 2-OH) as the major fatty acids. The DNA G+C content was 36.8 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain K105T belonged to the genus Chryseobacterium. Strain K105T exhibited 16S rRNA gene sequence similarity values of less than 96.9 % to the type strains of recognized Chryseobacterium species. Strain K105T differed from phylogenetically related Chryseobacterium species in several phenotypic properties. On the basis of phenotypic and phylogenetic data, strain K105T (=KCTC 12841T=JCM 14362T) is placed in the genus Chryseobacterium as the type strain of a novel species, for which the name Chryseobacterium daeguense sp. nov. is proposed.


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