Deefgea chitinilytica sp. nov., isolated from a wetland

2010 ◽  
Vol 60 (6) ◽  
pp. 1450-1453 ◽  
Author(s):  
Wen-Ming Chen ◽  
Yu-Ni Chung ◽  
Tzu-Fang Chiu ◽  
Chih-Yu Cheng ◽  
A. B. Arun ◽  
...  

A bacterial strain, designated Nsw-4T, was isolated from a water sample of Niao-Song Wetland Park in Taiwan and was characterized by using a polyphasic taxonomic approach. Strain Nsw-4T was Gram-negative, aerobic, ivory-coloured, rod-shaped and motile by means of a polar flagellum. Growth occurred at 15–37 °C, pH 6.0–8.0 and 0–2 % NaCl. Phylogenetic analyses based on 16S rRNA gene sequences showed that the strain belonged to the genus Deefgea and that its closest neighbour was Deefgea rivuli WB 3.4-79T (96.9 %). The results of physiological and biochemical tests allowed the clear phenotypic differentiation of this isolate from D. rivuli WB 3.4-79T. The major fatty acids were C16 : 1ω7c and C16 : 0. The G+C content of the genomic DNA was 53.7 mol%. On the basis of 16S rRNA gene sequence analysis and the chemotaxonomic and physiological data, strain Nsw-4T should be classified as representing a novel species and the second member of the genus Deefgea, for which the name Deefgea chitinilytica sp. nov. is proposed. The type strain is Nsw-4T (=BCRC 17934T=LMG 24817T).

2007 ◽  
Vol 57 (10) ◽  
pp. 2280-2283 ◽  
Author(s):  
Hae-Won Lee ◽  
Hong-Shan Yu ◽  
Qing-mei Liu ◽  
Hae-Min Jung ◽  
Dong-Shan An ◽  
...  

A Gram-negative, chemo-organotrophic, non-motile, non-spore-forming, rod-shaped bacterium (designated strain Ko04T) was isolated from anaerobic granules in an upflow anaerobic sludge blanket reactor, and was investigated using a polyphasic taxonomic approach. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain Ko04T belongs to the order Rhizobiales in the Alphaproteobacteria. Comparative 16S rRNA gene sequence analysis showed that strain Ko04T was most closely related to Kaistia adipata (97.5 %) and that sequence similarities with other species of Rhizobiales with validly published names were less than 92.5 %. The predominant ubiquinone was Q-10 and the major fatty acids were C18 : 1 ω7c/ω9t/ω12t, C19 : 0 cyclo ω8c and C18 : 0. The G+C content of the genomic DNA of strain Ko04T was 67.8 mol%. The level of DNA–DNA relatedness with K. adipata Chj404T was 15 %. The results of the genotypic analyses in combination with chemotaxonomic and physiological data demonstrated that strain Ko04T represents a novel species within the genus Kaistia, for which the name Kaistia granuli sp. nov. is proposed. The type strain is Ko04T (=KCTC 12575T=LMG 23410T).


2006 ◽  
Vol 56 (7) ◽  
pp. 1525-1529 ◽  
Author(s):  
Melissa M. Kendall ◽  
Yitai Liu ◽  
Magdalena Sieprawska-Lupa ◽  
Karl O. Stetter ◽  
William B. Whitman ◽  
...  

Three strains of CO2-reducing methanogens were isolated from marine sediments. Strain PL-15/HP was isolated from marine sediments of the Lipari Islands, near Sicily and the other two strains, Nankai-2 and Nankai-3T, were isolated from deep marine sediments of the Nankai Trough, about 50 km from the coast of Japan. Analysis of the cellular proteins and 16S rRNA gene sequences indicated that these three strains represented a single novel species that formed a deep branch of the mesophilic methanococci. Phylogenetic analysis indicated that the three strains were most closely related to Methanothermococcus okinawensis (95 % 16S rRNA gene sequence similarity). However, strains PL-15/HP, Nankai-2 and Nankai-3T grew at temperatures that were more similar to those of recognized species within the genus Methanococcus. Strain Nankai-3T grew fastest at 46 °C. Results of physiological and biochemical tests allowed the genotypic and phenotypic differentiation of strains PL-15/HP, Nankai-2 and Nankai-3T from closely related species. The name Methanococcus aeolicus sp. nov. is proposed, with strain Nankai-3T (=OCM 812T=DSM 17508T) as the type strain.


2007 ◽  
Vol 57 (9) ◽  
pp. 2143-2146 ◽  
Author(s):  
Dong-Shan An ◽  
Wan-Taek Im ◽  
Sung-Taik Lee ◽  
Min-Ho Yoon

A novel bacterial strain designated Gsoil 616T was isolated from a soil sample of a ginseng field in Pocheon province (South Korea) and was characterized taxonomically by using a polyphasic approach. The isolate was Gram-positive, strictly aerobic, non-motile, non-spore-forming and rod- or coccoid-shaped. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the isolate belongs to the genus Nocardioides in the family Nocardioidaceae but was clearly separated from established species of this genus. The 16S rRNA gene sequence similarities between strain Gsoil 616T and the type strains of Nocardioides species with validly published names ranged from 91.8 to 96.1 %. The G+C content of the genomic DNA was 73 mol%. Phenotypic and chemotaxonomic data [major menaquinone MK-8(H4) and major fatty acid iso-C16 : 0] supported the affiliation of strain Gsoil 616T to the genus Nocardioides. However, the results of physiological and biochemical tests allowed phenotypic differentiation of the isolate from other Nocardioides species. Therefore, strain Gsoil 616T represented a novel species within the genus Nocardioides, for which the name Nocardioides panacihumi sp. nov. is proposed. The type strain is Gsoil 616T (=KCTC 19187T =DSM 18660T).


2007 ◽  
Vol 57 (10) ◽  
pp. 2296-2298 ◽  
Author(s):  
Seong Woon Roh ◽  
Young-Do Nam ◽  
Ho-Won Chang ◽  
Youlboong Sung ◽  
Kyoung-Ho Kim ◽  
...  

A novel, extremely halophilic archaeon B3T was isolated from shrimp-salted seafood. Its morphology, physiology, biochemical features and 16S rRNA gene sequence were characterized. Strain B3T is non-motile, Gram-variable, requires at least 10 % (w/v) NaCl for growth and grows in the ranges of 21–50 °C and pH 6.5–9.0. The DNA G+C content of strain B3T was 63.2 mol%. Phylogenetic analysis based on the 16S rRNA gene sequences indicated that strain B3T belonged to the genus Halalkalicoccus and was phylogenetically closely related to the type strain Halalkalicoccus tibetensis (98.64 %). However, DNA–DNA hybridization experiments showed 7.0 % relatedness between strain B3T and a strain of a reference species of the genus Halalkalicoccus. Combined analysis of 16S rRNA gene sequences, DNA–DNA relatedness data, physiological and biochemical tests indicated that the genotypic and phenotypic characteristics differentiate strain B3T from other Halalkalicoccus species. On the basis of the evidence presented in this report, strain B3T represents a novel species of the genus Halalkalicoccus, for which the name Halalkalicoccus jeotgali. sp. nov. is proposed. The type strain is B3T (=KCTC 4019T=DSM 18796T=JCM 14584T=CECT 7217T).


2011 ◽  
Vol 61 (1) ◽  
pp. 201-204 ◽  
Author(s):  
Hae-Min Jung ◽  
Jung-Sook Lee ◽  
Heon-Meen Bae ◽  
Tae-Hoo Yi ◽  
Se-Young Kim ◽  
...  

A Gram-reaction-negative, chemo-organotrophic, non-motile, non-spore-forming, rod-shaped bacterium (strain Gsoil 080T) was isolated from soil collected in a ginseng field in Pocheon Province, South Korea, and was investigated by using a polyphasic taxonomic approach. Comparative 16S rRNA gene sequence analysis showed that strain Gsoil 080T was related most closely to Inquilinus limosus strains AU0476T and AU1979 (98.9 % similarity to both). Strain Gsoil 080T shared ≤91.3 % 16S rRNA gene sequence similarity with the type strains of other recognized species examined. The genus Inquilinus belongs to the family Rhodospirillaceae in the order Rhodospirillales, class Alphaproteobacteria. The predominant ubiquinone was Q-10 and the major fatty acids were summed feature 7 (C18 : 1 ω9c/ω12t/ω7c) and C19 : 0 cyclo ω8c. The G+C content of the genomic DNA of strain Gsoil 080T was 69.9 mol%. The level of DNA–DNA relatedness between strain Gsoil 080T and I. limosus LMG 20952T was 12 %. The results of genotypic analyses in combination with chemotaxonomic and physiological data demonstrated that strain Gsoil 080T represents a novel species of the genus Inquilinus, for which the name Inquilinus ginsengisoli sp. nov. is proposed. The type strain is Gsoil 080T (=KCTC 12574T =LMG 23638T).


2010 ◽  
Vol 60 (9) ◽  
pp. 2023-2026 ◽  
Author(s):  
Shu-Juan Cao ◽  
Chun-Ping Deng ◽  
Bao-Zhen Li ◽  
Xiu-Qin Dong ◽  
Hong-Li Yuan

A Gram-negative, yellow-pigmented bacterium, designated strain R2A-16T, was isolated from sediment of Rupa Lake in Nepal and analysed using a polyphasic taxonomic approach. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain R2A-16T is affiliated to the genus Cloacibacterium of the family Flavobacteriaceae; 16S rRNA gene sequence similarity between strain R2A-16T and Cloacibacterium normanense CCUG 46293T was 98.07 %. The isolate contained iso-C15 : 0 (35.6 %) as the major fatty acid and menaquinone MK-6 as the predominant respiratory quinone. The G+C content of the genomic DNA was 33.3 mol%. On the basis of its phenotypic properties and phylogenetic distinctiveness, strain R2A-16T represents a novel species of the genus Cloacibacterium, for which the name Cloacibacterium rupense sp. nov. is proposed; the type strain is R2A-16T (=CGMCC 1.7656T =NBRC 104931T).


2006 ◽  
Vol 56 (7) ◽  
pp. 1663-1666 ◽  
Author(s):  
Wan-Taek Im ◽  
Seong-Hye Kim ◽  
Myung Kyum Kim ◽  
Leonid N. Ten ◽  
Sung-Taik Lee

A Gram-negative, non-motile, non-spore-forming, rod-shaped bacterium (strain Y9T) was isolated from a contaminated culture of the phototrophic bacterium Rhodopseudomonas palustris, and was investigated using a polyphasic taxonomic approach. A phylogenetic analysis based on 16S rRNA gene sequences showed that strain Y9T belonged to the order Rhizobiales in the Alphaproteobacteria. Comparison of phylogenetic data indicated that it was most closely related to Pleomorphomonas oryzae (98.5 % similarity of 16S rRNA gene sequence), and the phylogenetic distance from any other species of the order Rhizobiales with a validly published name was greater than 7.5 % (i.e. less than 92.5 % similarity). The predominant ubiquinone was Q-10 and the major fatty acids were C18 : 1, C16 : 0, C19 : 0 cyclo ω8c and C18 : 0. The G+C content of genomic DNA of strain Y9T was 65.1 mol%. The results of DNA–DNA hybridization in combination with chemotaxonomic and physiological data demonstrated that strain Y9T represents a novel species within the genus Pleomorphomonas, for which the name Pleomorphomonas koreensis sp. nov. is proposed. The type strain is Y9T (=KCTC 12246T=NBRC 100803T)


2014 ◽  
Vol 64 (Pt_9) ◽  
pp. 3235-3239 ◽  
Author(s):  
Wan-Hoe Kim ◽  
Siwon Lee ◽  
Tae-Young Ahn

A Gram-reaction-positive, rod-shaped, strictly aerobic and non-motile bacterial strain, designated WS16T, was isolated from the sediment of a shallow stream located in Cheonan, Korea. The strain grew optimally at 28 °C, at pH 7.0 and in the absence of NaCl. Phylogenetic trees based on 16S rRNA gene sequences suggested that the isolate belonged to the genus Flavihumibacter of the phylum Bacteroidetes . Comparative 16S rRNA gene sequence analysis showed that strain WS16T was related most closely to Flavihumibacter petaseus T41T (96.8 % similarity). The isolate contained MK-7 as the predominant menaquinone and iso-C15 : 0, iso-C15 : 1 and iso-C17 : 0 3-OH as the major fatty acids. The genomic DNA G+C content of the isolate was 45.9 mol%. The results of a polyphasic taxonomic approach indicated that strain WS16T represents a novel species of the genus Flavihumibacter , for which the name Flavihumibacter cheonanensis sp. nov. is proposed. The type strain is WS16T ( = KACC 17467T = JCM 19322T).


2004 ◽  
Vol 54 (4) ◽  
pp. 1213-1216 ◽  
Author(s):  
Huapeng Fan ◽  
Yanfen Xue ◽  
Yanhe Ma ◽  
Antonio Ventosa ◽  
William D. Grant

A novel haloalkaliphilic archaeon, strain 8W8T, was isolated from Lake Zabuye, on the Tibetan Plateau, China. On the basis of 16S rRNA gene sequence analysis, strain 8W8T was shown to belong to the genus Halorubrum and was related to Halorubrum vacuolatum (96·7 % sequence similarity), Halorubrum saccharovorum (96·0 %), Halorubrum lacusprofundi (95·4 %) and Halorubrum sodomense (95·3 %). The phylogenetic distance from any species within the other genera of Halobacteriales was lower than 90 %. The major polar lipids of strain 8W8T were C20C20 and C20C25 derivatives of phosphatidylglycerol phosphate and phosphatidylglycerol phosphate methyl ester. The results of DNA–DNA hybridization and physiological and biochemical tests allowed genotypic and phenotypic differentiation of strain 8W8T from the eight Halorubrum species with validly published names. Therefore, strain 8W8T represents a novel species, for which the name Halorubrum tibetense sp. nov. is proposed, with the type strain 8W8T (=AS 1.3239T=JCM 11889T).


2007 ◽  
Vol 57 (7) ◽  
pp. 1572-1575 ◽  
Author(s):  
Hang-Yeon Weon ◽  
Byung-Yong Kim ◽  
Seung-Hee Yoo ◽  
Jae-Ho Joa ◽  
Soon-Wo Kwon ◽  
...  

A motile, Gram-negative, rod-shaped bacterium, designated strain JS11-7T, was isolated from forest soil from Halla Mountain, Jeju Island, Korea. It grew optimally at 28 °C, pH 6–7 and in the presence of 0–2 % (w/v) NaCl. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain JS11-7T belongs to the family Neisseriaceae, with Silvimonas terrae as its closest relative (95.0 % similarity). It contained Q-8 as the predominant quinone and summed feature 3 (comprising iso-C15 : 0 2-OH and/or C16 : 1 ω6c), C16 : 0 and C18 : 1 ω7c as the major fatty acids. The DNA G+C content was 62 mol%. On the basis of phenotypic and genotypic characteristics and the results of 16S rRNA gene sequence analysis, strain JS11-7T represents a novel genus and species, for which the name Andreprevotia chitinilytica gen. nov., sp. nov. is proposed. The type species is Andreprevotia chitinilytica and the type strain is JS11-7T (=KACC 11608T=DSM 18519T).


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