scholarly journals Pseudogulbenkiania gefcensis sp. nov., isolated from soil

2013 ◽  
Vol 63 (Pt_1) ◽  
pp. 187-191 ◽  
Author(s):  
Dong-Geol Lee ◽  
Dong-Moon Im ◽  
HeeCheol Kang ◽  
Pyeong Yun ◽  
Sun-Ki Park ◽  
...  

A novel strain, yH16, was isolated on nutrient agar from soil samples collected at KyungHee University, Suwon City, Republic of Korea. Cells of strain yH16T were short rods, Gram-negative-staining, motile and non-spore-forming, with a polar flagellum. Biochemical and molecular characterization revealed that this strain was most similar to Pseudogulbenkiania subflava BP-5T. Further 16S rRNA gene sequencing studies revealed that the new strain clustered with Pseudogulbenkiania subflava BP-5T (95.9 % similarity), Paludibacterium yongneupense 5YN8-15T (95.2 % similarity), Gulbenkiania mobilis E4FC31-5T (94.6 % similarity) and Chromobacterium aquaticum CC-SE-YA-1T (93.9 % similarity). The isolate was able to grow at 25–40 °C, 0.3–2 % NaCl and pH 5.5–7. The DNA G+C content was 65.9±1.0 mol%. The predominant fatty acids were summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH) and C16:0. Ubiquinone 8 was the major respiratory quinone. It was evident from the data obtained that the strain should be classified as a novel species of the genus Pseudogulbenkiania . The name proposed for this taxon is Pseudogulbenkiania gefcensis sp. nov., and the type strain is yH16T ( = KCCM 90100T = JCM 17850T).

Author(s):  
Yea-Lin Moon ◽  
Jin-Sook Park

A Gram-stain-negative, rod-shaped, motile via polar flagellum, facultatively aerobic, light-yellow, bacterium (designated 188UL20-2T) was isolated from a mussel sample of Mytilus coruscus collected on Ulleung Island, Ulleung-gun, Gyeongsangbuk-do, Republic of Korea. On the basis of 16S rRNA gene sequencing results, strain 188UL20-2T clustered with species of the genus Vibrio and appeared closely related to Vibrio marisflavi DSM 23086T (96.59%), Vibrio variabilis DSM 26147T (96.57%), Vibrio penaeicida DSM 14398T (96.37%) and Vibrio litoralis DSM 17657T (95.97%). The average nucleotide identity and digital DNA–DNA hybridization values between strain 188UL20-2T and its closest related strain were 71.3 and 16.4%, indicating that 188UL20-2T represents a novel species of the genus Vibrio . Growth occurred at 18–37 °C on MA medium in the presence of 1–4% NaCl (w/v) and at pH 5.0–10.0. The DNA G+C content of the genomic DNA was 45.4 mol%, and ubiquinone-8 (Q-8) was the major respiratory quinone. The major cellular fatty acids (>5%) were C16:1 ω6c and/or C16:1 ω7c (summed feature 3), C18:1 ω7c and/or C18:1 ω6c (summed feature 8), C16:0, C16:0 iso, C14:0, C14:0 iso and C12:0. The polar lipids consisted of phosphatidylglycerol, phosphatidylethanolamine, two unidentified phospholipids, unidentified aminophospholipid, unidentified glycolipid and seven unidentified lipids. Physiological and biochemical characteristics indicated that strain 188UL20-2T represents a novel species of the genus Vibrio , for which the name Vibrio ulleungensis sp. nov. is proposed. The type strain is 188UL20-2T (=KACC 22258T=LMG 32202T).


2013 ◽  
Vol 63 (Pt_2) ◽  
pp. 442-448 ◽  
Author(s):  
Samson Viulu ◽  
Kohei Nakamura ◽  
Yurina Okada ◽  
Sakiko Saitou ◽  
Kazuhiro Takamizawa

A novel species of Fe(III)-reducing bacterium, designated strain OSK6T, belonging to the genus Geobacter , was isolated from lotus field mud in Japan. Strain OSK6T was isolated using a solid medium containing acetate, Fe(III)-nitrilotriacetate (NTA) and gellan gum. The isolate is a strictly anaerobic, Gram-negative, motile, straight rod-shaped bacterium, 0.6–1.9 µm long and 0.2–0.4 µm wide. The growth of the isolate occurred at 20–40 °C with optima of 30–37 °C and pH 6.5–7.5 in the presence of up to 0.5 g NaCl l−1. The G+C content of the genomic DNA was determined by HPLC to be 59.7 mol%. The major respiratory quinone was MK-8. The major fatty acids were 16 : 1ω7c and 16 : 0. Strain OSK6T was able to grow with Fe(III)-NTA, ferric citrate, amorphous iron (III) hydroxide and nitrate, but not with fumarate, malate or sulfate as electron acceptors. Among examined substrates grown with Fe(III)-NTA, the isolate grew on acetate, lactate, pyruvate and succinate. Analysis of the near full-length 16S rRNA gene sequence revealed that strain OSK6T is closely related to Geobacter daltonii and Geobacter toluenoxydans with 95.6 % similarity to the type strains of these species. On the basis of phylogenetic analysis and physiological tests, strain OSK6T is described as a representative of a novel species, Geobacter luticola sp. nov.; the type strain is OSK6T ( = DSM 24905T = JCM 17780T).


Author(s):  
Dong Ho Keum ◽  
Jun Mo Yeon ◽  
Chan-Seok Yun ◽  
Soon Youl Lee ◽  
Wan-Taek Im

A Gram-stain-negative, non-motile, non-spore-forming, aerobic, rod-shaped and yellow-pigmented bacterium, designated strain Gsoil 183T, was isolated from ginseng-cultivation soil sampled in Pocheon Province, Republic of Korea. This bacterium was characterized to determine its taxonomic position by using a polyphasic approach. Strain Gsoil 183T grew at 10–37 °C and at pH 5.0–9.0 on tryptic soy agar. Strain Gsoil 183T had β-glucosidase activity, which was responsible for its ability to convert ginsenoside Rb1 (one of the dominant active components of ginseng) to F2. Based on 16S rRNA gene sequencing, strain Gsoil 183T clustered with species of the genus Chryseobacterium and appeared to be closely related to Chryseobacterium sediminis LMG 28695T (99.1 % sequence similarity), Chryseobacterium lactis NCTC 11390T (98.6%), Chryseobacterium rhizoplanae LMG 28481T (98.6%), Chryseobacterium oncorhynchi CCUG 60105T (98.5%), Chryseobacterium viscerum CCUG 60103T (98.4%) and Chryseobacterium joostei DSM 16927T (98.3%). Menaquinone MK-6 was the predominant respiratory quinone and the major fatty acids were iso-C15 : 0, iso-C17 : 0-3OH and summed feature 3 (C16 : 1  ω6c and/or C16 : 1  ω7c). The polar lipids were phosphatidylethanolamine, six unidentified glycolipids, five unidentified aminolipids and three unidentified lipids. The G+C content of the genomic DNA was 36.6 mol%. Digital DNA–DNA hybridization between strain Gsoil 183T and the type strains of C. sediminis , C. lactis , C. rhizoplanae , C. oncorhynchi , C. viscerum and C. joostei resulted in values below 70 %. Strain Gsoil 183T could be differentiated genotypically and phenotypically from the recognized species of the genus Chryseobacterium . The isolate therefore represents a novel species, for which the name Chryseobacterium panacisoli sp. nov. is proposed, with the type strain Gsoil 183T (=KACC 15033T=LMG 23397T)


2013 ◽  
Vol 63 (Pt_10) ◽  
pp. 3868-3872 ◽  
Author(s):  
Jung Moon Hwang ◽  
Eu Jin Chung ◽  
Jeong Ae Park ◽  
Jae Heon Jeong ◽  
Che Ok Jeon ◽  
...  

A novel bacterial strain, YC6899T, was isolated from the root of Suaedae maritima growing on a tidal flat of Namhae Island, Korea. Cells were Gram-reaction-negative, rod-shaped, non-motile, slightly halophilic and heterotrophic. Strain YC6899T grew optimally at a salinity of 2–4 %, at 25–37 °C and at pH 6.5–8.0. Phylogenetic analysis of 16S rRNA gene sequences demonstrated that strain YC6899T was closely related to Amorphus orientalis YIM D10T (96.1 % similarity) and Amorphus coralli RS.Sph.026T (95.9 %). The polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, unknown aminolipids, an unknown aminophospholipid, an unknown aminoglycolipid, unknown glycolipids and unknown lipids. The major fatty acids of strain YC6899T were C19 : 0 cyclo ω8c and C18 : 1ω7c. The G+C content of the genomic DNA was 61.3 mol%. Strain YC6899T contained ubiquinone-10 (Q-10) as the major respiratory quinone system. On the basis of phenotypic, chemotaxonomic and phylogenetic data, strain YC6899T represents a novel species within the genus Amorphus , for which the name Amorphus suaedae sp. nov. is proposed. The type strain is YC6899T ( = KACC 14912T = NBRC 107845T).


2015 ◽  
Vol 65 (Pt_2) ◽  
pp. 698-703 ◽  
Author(s):  
Yochan Joung ◽  
Heeyoung Kang ◽  
Beom-Il Lee ◽  
Haneul Kim ◽  
Kiseong Joh ◽  
...  

An aerobic, Gram-stain-negative, rod-shaped bacterium, designated strain PGW1-R01T, was isolated from fresh water from the Yeongju in the Republic of Korea. The strain grew optimally at 30 °C and at pH 6-8 on R2A agar. The major cellular fatty acids were summed feature 3 [comprising C16 : 1ω7c and/or C16 : 1ω6c (50.2 %) and iso-C15 : 0 (24.8 %)]. The major respiratory quinone was MK-7. The G+C contents were 39.4 mol% and the predominant respiratory quinone was MK-7. Based on 16S rRNA gene phylogeny, the strain belongs to the genus Mucilaginibacter . The strain PGW1-R01T was closely related to ‘ Mucilaginibacter ginsenosidivorax’ (96.6 % sequence similarity), Mucilaginibacter lappiensis (96.4 %) and Mucilaginibacter flavus (96.4 %). On the basis of the evidence presented in this study, strain PGW1-R01T represents a novel species of the genus Mucilaginibacter , for which the name Mucilaginibacter http://dx.doi.org/10.1601/nm.11437 aquaedulcis sp. nov., is proposed. The type strain is PGW1-R01T( = KCTC 23942T = CECT 8102T).


2015 ◽  
Vol 65 (Pt_3) ◽  
pp. 845-850 ◽  
Author(s):  
Xiao-Mei Ye ◽  
Cui-Wei Chu ◽  
Chao Shi ◽  
Jian-Chun Zhu ◽  
Qin He ◽  
...  

Strain BUT-8T, a Gram-stain-negative, non-motile and rod-shaped aerobic bacterium, was isolated from the activated sludge of a herbicide-manufacturing wastewater treatment facility. Comparative 16S rRNA gene sequence analysis revealed that strain BUT-8T clustered with species of the genus Lysobacter and was closely related to Lysobacter ruishenii DSM 22393T (98.3 %) and Lysobacter daejeonensis KACC 11406T (98.7 %). The DNA G+C content of the genomic DNA was 70.6 mol%. The major respiratory quinone was ubiquinone-8, and the major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol and an aminolipid. The major cellular fatty acids were iso-C15 : 0, iso-C16 : 0, iso-C17 : 0, iso-C11 : 0, iso-C11 : 0 3OH and summed feature 9 (comprising iso-C17 : 1ω9c and/or C16 : 010-methyl). The DNA–DNA relatedness between strain BUT-8T and its closest phylogenetic neighbours was below 70 %. Phylogenetic, chemotaxonomic and phenotypic results clearly demonstrated that strain BUT-8T belongs to the genus Lysobacter and represents a novel species for which the name Lysobacter caeni sp. nov. is proposed. The type strain is BUT-8T ( = CCTCC AB 2013087T = KACC 17141T).


Author(s):  
Shin Ae Lee ◽  
Tae-Wan Kim ◽  
Mee-Kyung Sang ◽  
Jaekyeong Song ◽  
Soon-Wo Kwon ◽  
...  

A Gram-stain-negative, aerobic, non-motile and rod-shaped bacterium, designated KIS59-12T, was isolated from a soil sample collected on Hodo island, Boryeong, Republic of Korea. The strain grew at 10–33 °C, pH 6.0–7.5 and with 0–4 % NaCl (w/v). Results of phylogenetic analysis based on 16S rRNA gene sequences showed that strain KIS59-12T was in the same clade as Arachidicoccus rhizosphaerae Vu-144T and Arachidicoccus ginsenosidivorans Gsoil809T with 97.5 and 97.2 % sequence similarity, respectively. Comparative genome analysis between strain KIS59-12T and A. rhizosphaerae Vu-144T showed that average nucleotide identity value was 69.4 % and the digital DNA–DNA hybridization value was 19.1 %. The major respiratory quinone was menaquinone-7. The major polar lipids were phosphatidylethanolamine and an unknown polar lipid. The predominant cellular fatty acids were iso-C15 : 0, iso-C15 : 1 G and iso-C17 : 0 3-OH, which supported the affiliation of strain KIS59-12T with the genus Arachidicoccus . The major polyamines were homospermidine and putrescine. The genomic DNA G+C content was 36.4 mol%. On the basis of phylogenetic, physiological and chemotaxonomic characteristics, strain KIS59-12T represents a novel species of the genus Arachidicoccus , for which the name Arachidicoccus soli sp. nov. is proposed. The type strain of Arachidicoccus soli is KIS59-12T (=KACC 17340T=NBRC 113161T).


2012 ◽  
Vol 62 (Pt_8) ◽  
pp. 1736-1743 ◽  
Author(s):  
Maria Hoffmann ◽  
Steven R. Monday ◽  
Marc W. Allard ◽  
Errol A. Strain ◽  
Paul Whittaker ◽  
...  

A Gram-negative, oxidase-positive, catalase-negative, facultatively anaerobic, motile, curved rod-shaped bacterium, strain N384T, was isolated from a marine sponge (Scleritoderma cyanea; phylum Porifera) collected from a depth of 795 feet (242 m) off the west coast of Curaçao. On the basis of 16S rRNA gene sequencing, strain N384T was shown to belong to the genus Vibrio , most closely related to Vibrio brasiliensis LMG 20546T (98.8 % similarity), Vibrio nigripulchritudo ATCC 27043T (98.5 %), Vibrio tubiashii ATCC 19109T (98.6 %) and V. sinaloensis DSM 21326T (98.2 %). The DNA G+C content of strain N384T was 41.6 mol%. An analysis of concatenated sequences of five genes (gyrB, rpoA, pyrH, mreB and ftsZ; 4068 bp) demonstrated a clear separation between strain N384T and its closest neighbours and clustered strain N384T into the ‘Orientalis’ clade of vibrios. Phenotypically, the novel species belonged to the arginine dihydrolase-positive, lysine decarboxylase- and ornithine decarboxylase-negative (A+/L−/O−) cluster. The novel species was also differentiated on the basis of fatty acid composition, specifically that the proportions of iso-C13 : 0, iso-C15 : 0, C15 : 0, iso-C16 : 0, C16 : 0, iso-C17 : 0, C17 : 1ω8c and C17 : 0 were significantly different from those found in V. brasiliensis and V. sinaloensis . The results of DNA–DNA hybridization, average nucleotide identity and physiological and biochemical tests further allowed differentiation of this strain from other described species of the genus Vibrio . Collectively, these findings confirm that strain N384T represents a novel Vibrio species, for which the name Vibrio caribbeanicus sp. nov. is proposed, with the type strain N384T ( = ATCC BAA-2122T = DSM 23640T).


2013 ◽  
Vol 63 (Pt_7) ◽  
pp. 2497-2500 ◽  
Author(s):  
Lei Song ◽  
Fei Ren ◽  
Ying Huang ◽  
Xin Dai ◽  
Yuguang Zhou

Two Gram-negative, aerobic, rod-shaped bacteria, designated strains SW104T and X07, were isolated from a seawater sample collected from the Indian Ocean. The strains grew at a temperature range of 12–50 °C (optimum, 35–37 °C), and at pH 6.0–9.0 (optimum pH 7.0–7.5). The predominant cellular fatty acids of strain SW104T were iso-C15 : 0 (41.2 %), iso-C17 : 1ω9c (15.2 %) and iso-C17 : 0 (11.1 %). The major respiratory quinone was ubiquinone 8 (Q-8). The major polar lipids were phosphatidylethanolamine, diphosphatidylglycerol and phosphatidylglycerol. The genomic DNA G+C contents of strains SW104T and X07 were 49.8 and 49.5 mol%, respectively. Phylogenetic analysis based on 16S rRNA gene sequences revealed that the new isolates were related to members of the genus Idiomarina , showing the highest similarity with Idiomarina taiwanensis PIT1T and Idiomarina maritima 908087T (96.1 and 95.9 %, respectively). On the basis of phenotypic, genotypic and phylogenetic characteristics, it is proposed that strains SW104T and X07 should be described as representatives of a novel species of the genus Idiomarina , for which the name Idiomarina indica sp. nov. is proposed. The type strain is SW104T ( = CGMCC 1.10824T = JCM 18138T).


2012 ◽  
Vol 62 (Pt_12) ◽  
pp. 2941-2945 ◽  
Author(s):  
Andrea Zbinden ◽  
Nicolas J. Mueller ◽  
Philip E. Tarr ◽  
Cathrin Spröer ◽  
Peter M. Keller ◽  
...  

Four Gram-stain-positive, catalase-negative, coccus-shaped bacterial strains were isolated from multiple blood cultures of patients with endocarditis, meningitis and spondylodiscitis. The isolates were tentatively identified as viridans streptococci on the basis of phenotypic characteristics. Comparative 16S rRNA gene sequencing studies showed that the organisms were members of the Streptococcus mitis group but did not correspond to any recognized species. The nearest phylogenetic relative was S. mitis ATCC 49456T, with 98.6 % sequence similarity. The representative strain AZ_3aT showed less than 96.8, 97.6, 94.5 and 95.5 % similarity to the phylogenetically most closely related species by recA, rpoB, sodA and groEL gene sequence analysis, respectively. DNA–DNA hybridization analyses showed a low reassociation value of 32.2 % between strain AZ_3aT and S. mitis DSM 12643T. Reassociation values with members of other S. mitis group species ranged from 27.3 to 49.7 %. The G+C content of the DNA was 40.0 mol%. Based on our biochemical and molecular analyses, the isolates represent a novel species, for which the name Streptococcus tigurinus sp. nov. is proposed. The type strain is AZ_3aT ( = CCOS 600T  = DSM 24864T).


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