scholarly journals Xanthomarina gelatinilytica gen. nov., sp. nov., isolated from seawater

2015 ◽  
Vol 65 (Pt_11) ◽  
pp. 3926-3932 ◽  
Author(s):  
Bhumika Vaidya ◽  
Ravinder Kumar ◽  
Gunjan Sharma ◽  
Tanuku Naga Radha Srinivas ◽  
Pinnaka Anil Kumar

A novel Gram-stain-negative, rod-shaped, yellow-pigmented, non-sporulating, non-motile bacterium, designated strain AK20T, was isolated from seawater collected from Kochi city, Kerala state, India. Colonies on marine agar were circular, yellow, shiny, translucent, 2–3 mm in diameter, convex and with entire margin. Flexirubin-type pigment was present. The fatty acids were dominated by iso-branched units with a high abundance of iso-C15 : 0, iso-C15 : 1 G, iso-C17 : 0 3-OH, summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH) and iso-C15 : 0 3-OH. Polar lipids included phosphatidylethanolamine, two unidentified aminophospholipids, two unidentified phospholipids and four unidentified lipids. Menaquinone 6 (MK-6) was the predominant respiratory quinone. The DNA G+C content of strain AK20T was 38.8 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain AK20T was closely related to Formosa spongicola A2T and Bizionia paragorgiae KMM 6029T (pair-wise sequence similarities of 95.9 and 95.7 %, respectively), forming a distinct branch within the family Flavobacteriaceae and clustering with the clade comprising species of the genus Bizionia. Based on phenotypic and chemotaxonomic characteristics and phylogenetic analysis, strain AK20T is different from the existing genera in the family Flavobacteriaceae, and is therefore considered to represent a novel species of a new genus, for which the name Xanthomarina gelatinilytica gen. nov., sp. nov. is proposed. The type strain of Xanthomarina gelatinilytica is AK20T ( = MTCC 11705T = JCM 18821T).

2015 ◽  
Vol 65 (Pt_7) ◽  
pp. 2048-2055 ◽  
Author(s):  
Yun-xiang Wang ◽  
Fa-qi Huang ◽  
Yuichi Nogi ◽  
Shou-ji Pang ◽  
Ping-kang Wang ◽  
...  

A Gram-reaction-negative bacterial strain, designated fig4T, was isolated from a subsurface sediment core of Qiangtang Basin permafrost in China. Cells were catalase- and oxidase-positive and rods. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain fig4T was a member of the family Hyphomicrobiaceae and was most closely related to members of the genera Pelagibacterium, Vasilyevaea and Devosia with 93.8–96.2 % sequence similarities. The major cellular fatty acids were C16 : 0, C18 : 0, 11-methyl C18 : 1ω7c, C19 : 0 cyclo ω8c and summed feature 8 (C18 : 1ω7c and/or C18 : 1ω6c). The major respiratory quinone was Q-10 and the major polar lipids were diphosphatidylglycerol, phosphatidylglycerol and two unknown glycolipids. The DNA G+C content was 60.7 mol%. Based on the phenotypic, phylogenetic and genotypic data, strain fig4T is considered to represent a novel species of a new genus in the family Hyphomicrobiaceae, for which the name Youhaiella tibetensis gen. nov., sp. nov. is proposed. The type strain is fig4T ( = CGMCC 1.12719T = JCM 19854T).


2010 ◽  
Vol 60 (7) ◽  
pp. 1644-1648 ◽  
Author(s):  
Hyung-Yeel Kahng ◽  
Sang-Suk Lee ◽  
Jeong Myeong Kim ◽  
Ji Young Jung ◽  
Mee Young Lee ◽  
...  

An aerobic, yellow–orange-pigmented, Gram-staining-negative bacterium, designated strain EM44T, was isolated from seawater on the eastern coast of Jeju Island, Korea. Growth was observed at 15–35 °C (optimum 25–30 °C), pH 6.5–9.0 (optimum pH 7.0–8.5) and between 1 and 5 % NaCl (w/v) (optimum 2–4 %). Cells of strain EM44T were non-motile, straight rods and showed catalase and oxidase activities. The G+C content of the genomic DNA was 47.9 mol% and the major respiratory quinone was MK-6. The major fatty acids were iso-C15 : 0 G, iso-C15 : 0, iso-C17 : 0 3-OH and iso-C16 : 0 3-OH. Strain EM44T contained phosphatidylethanolamine as a major polar phospholipid. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain EM44T fell within the family Flavobacteriaceae in the phylum Bacteroidetes and was most closely related to members of the genera Eudoraea, Zeaxanthinibacter and Robiginitalea with 92–94.5 % gene sequence similarities. On the basis of chemotaxonomic data and molecular properties, it is clear that strain EM44T represents a novel genus within the family Flavobacteriaceae, for which the name Muriicola jejuensis gen. nov., sp. nov. is proposed. The type strain of the type species is EM44T (=KCTC 22299T=DSM 21206T).


Author(s):  
Shan Jiang ◽  
Feng-Bai Lian ◽  
You-Yang Sun ◽  
Xiao-Kui Zhang ◽  
Zong-Jun Du

A Gram-stain-negative, rod-shaped and facultatively aerobic bacterial strain, designated F7430T, was isolated from coastal sediment collected at Jingzi Wharf in Weihai, PR China. Cells of strain F7430T were 0.3–0.4 µm wide, 2.0–2.6 µm long, non-flagellated, non-motile and formed pale-beige colonies. Growth was observed at 4–40 °C (optimum, 30 °C), pH 6.0–9.0 (optimum, pH 7.5–8.0) and at NaCl concentrations of 1.0–10.0 % (w/v; optimum, 1.0 %). The sole respiratory quinone of strain F7430T was ubiquinone 8 and the predominant cellular fatty acids were summed feature 8 (C18 : 1  ω7c / C18 : 1  ω6c; 60.7 %), summed feature 3 (C16 : 1  ω7c/C16 : 1  ω6c; 30.2 %) and C15 : 0 iso (13.9 %). The polar lipids of strain F7430T consisted of diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, one unidentified phospholipid and three unidentified lipids. Results of 16S rRNA gene sequences analyses indicated that this strain belonged to the family Halieaceae and had high sequence similarities to Parahaliea aestuarii JCM 51547T (95.3 %) and Halioglobus pacificus DSM 27932T (95.2 %) followed by 92.9–95.0 % sequence similarities to other type species within the aforementioned family. The rpoB gene sequences analyses indicated that the novel strain had the highest sequence similarities to Parahaliea aestuarii JCM 51547T (82.2 %) and Parahaliea mediterranea DSM 21924T (82.2 %) followed by 75.2–80.5 % sequence similarities to other type species within this family. Phylogenetic analyses showed that strain F7430T constituted a monophyletic branch clearly separated from the other genera of family Halieaceae . Whole-genome sequencing of strain F7430T revealed a 3.3 Mbp genome size with a DNA G+C content of 52.6 mol%. The genome encoded diverse metabolic pathways including the Entner–Doudoroff pathway, assimilatory sulphate reduction and biosynthesis of dTDP-l-rhamnose. Based on results from the current polyphasic study, strain F7430T is proposed to represent a novel species of a new genus within the family Halieaceae , for which the name Sediminihaliea albiluteola gen. nov., sp. nov. is proposed. The type strain of the type species is F7430T (=KCTC 72873T=MCCC 1H00420T).


2011 ◽  
Vol 61 (11) ◽  
pp. 2734-2739 ◽  
Author(s):  
Chae-Sung Lim ◽  
Yong-Sik Oh ◽  
Jae-Kwan Lee ◽  
A-Rum Park ◽  
Jae-Soo Yoo ◽  
...  

A yellow-pigmented, Gram-staining-negative, non-motile, strictly aerobic and rod-shaped bacterium, designated CS100T, was isolated from soil in Chungbuk, Korea. Phylogenetic analysis and comparative studies based on the 16S rRNA gene sequence showed that strain CS100T belonged to the genus Flavobacterium in the family Flavobacteriaceae. Strain CS100T showed the highest sequence similarities to Flavobacterium glaciei JCM 13953T (97.6 %) and Flavobacterium johnsoniae KACC 11410T (97.1 %). Sequence similarity to other members of the genus Flavobacterium was 91.5–97.0 %. Growth occurred at 4–30 °C, at pH 5.0–9.0 and in the presence of 0–2 % (w/v) NaCl. Flexirubin-type pigments were produced. Menaquinone-6 (MK-6) was the major respiratory quinone and the major fatty acids were iso-C15 : 0 (17.3 %), summed feature 3 (comprising iso-C15 : 0 2-OH and/or C16 : 1ω7c, 15.5 %) and C16 : 0 (11.8 %). The DNA G+C content was 36.4 mol%. Strain CS100T hydrolysed skimmed milk and gelatin, but not chitin or pectin, and showed oxidase and catalase activities. DNA–DNA relatedness was 3.0 % with F. glaciei JCM 13953T and 11.5 % with F. johnsoniae KACC 11410T. On the basis of the evidence from this study, strain CS100T represents a novel species of the genus Flavobacterium, for which the name Flavobacterium chungbukense sp. nov. is proposed. The type strain is CS100T ( = KACC 15048T = JCM 17386T).


2015 ◽  
Vol 65 (Pt_10) ◽  
pp. 3333-3338 ◽  
Author(s):  
Wei Fang ◽  
Yong Li ◽  
Han Xue ◽  
Guozhong Tian ◽  
Laifa Wang ◽  
...  

Three novel endophytic strains, designated 17B10-2-12T, 26C10-4-4 and D13-10-4-9, were isolated from the bark of Populus euramericana in Heze, Shandong Province, China. They were Gram-reaction-negative, aerobic, non-motile, short-rod-shaped, oxidase-positive and catalase-negative. A phylogenetic analysis of the 16S rRNA gene showed that the three novel strains clustered with members of the family Comamonadaceae and formed a distinct branch. The isolates shared 100 % similarities among themselves and had the highest sequence similarity with Xenophilus azovorans DSM 13620T (95.2 %) and Xenophilus arseniciresistens YW8T (95.0 %), and less than 95.0 % sequence similarities with members of other species. Their major fatty acids were C16 : 0, C17 : 0 cyclo, C18 : 1ω7c and C16 : 1ω7c/C16 : 1ω6c. The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and three unknown aminophospholipids. The predominant quinone was ubiquinone-8 (Q-8). The DNA G+C content was 69.5–70.0 mol%. Based on data from a polyphasic taxonomy study, the three strains represent a novel species of a novel genus of the family Comamonadaceae, for which the name Corticibacter populi gen. nov., sp. nov. is proposed. The type strain is 17B10-2-12T ( = CFCC 12099T = KCTC 42091T).


2011 ◽  
Vol 61 (5) ◽  
pp. 1201-1205 ◽  
Author(s):  
Jun Dai ◽  
Fan Jiang ◽  
Yang Wang ◽  
Bo Yu ◽  
Huan Qi ◽  
...  

Strain 15-4T, a Gram-stain-negative, rod-shaped, non-motile bacterial strain that produced flexirubin-type pigments, was isolated from Tibet Province, China, and characterized by using a polyphasic taxonomic approach. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the isolate belonged to the family Chitinophagaceae, phylum ‘Bacteroidetes’, and was related to members of the genus Niabella, with sequence similarities ranging from 94.1 to 96.4 %. Strain 15-4T contained MK-7 as the predominant menaquinone and its DNA G+C content was 46.9 mol%. The major fatty acids of strain 15-4T were iso-C15 : 0 (41.3 %), iso-C15 : 1 G (14.9 %), iso-C17 : 0 3-OH (13.2 %) and summed feature 3 (comprising C16 : 1ω7c and/or iso-C15 : 0 2-OH, 16.0 %). These chemotaxonomic data supported the affiliation of strain 15-4T to the genus Niabella. However, a number of physiological and biochemical features enabled the isolate to be differentiated phenotypically from recognized species of the genus Niabella. On the basis of the evidence presented, it is proposed that strain 15-4T represents a novel species, Niabella tibetensis sp. nov.; the type strain is 15-4T ( = CCTCC AB 209167T = NRRL B-59394T). On the basis of these data, an emended description of the genus Niabella is also proposed.


2010 ◽  
Vol 60 (3) ◽  
pp. 580-584 ◽  
Author(s):  
Muhammad Yasir ◽  
Zubair Aslam ◽  
Geun Cheol Song ◽  
Che Ok Jeon ◽  
Young Ryun Chung

A Gram-stain-negative, rod-shaped bacterium, designated strain YC7378T was isolated from vermicompost (VC) collected at Masan, Korea, and its taxonomic position was investigated by using a polyphasic approach. Strain YC7378T grew optimally at 30 °C and at pH 6.5–8.5. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain YC7378T belongs to the genus Sphingosinicella in the family Sphingomonadaceae. The most closely related strains are Sphingosinicella soli KSL-125T (95.7 %), Sphingosinicella xenopeptidilytica 3-2W4T (95.6 %) and Sphingosinicella microcystinivorans Y2T (95.5 %). Strain YC7378T contained ubiquinone Q-10 as the major respiratory quinone system and sym-homospermidine as the major polyamine. The major fatty acids of strain YC7378T were C18 : 1 ω7c, C16 : 1 ω7c and/or iso-C15 : 0 2-OH, C14 : 0 2-OH and C16 : 0. The major polar lipids were sphingoglycolipid, diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine. The total DNA G+C content was 59.4 mol%. The phenotypic, phylogenetic and chemotaxonomic data showed that strain YC7378T represents a novel species of the genus Sphingosinicella, for which the name Sphingosinicella vermicomposti sp. nov. is proposed. The type strain is YC7378T (=KCTC 22446T =DSM 21593T).


2006 ◽  
Vol 56 (5) ◽  
pp. 1067-1071 ◽  
Author(s):  
Raúl Rivas ◽  
Paula García-Fraile ◽  
Pedro F. Mateos ◽  
Eustoquio Martínez-Molina ◽  
Encarna Velázquez

A halotolerant bacterium was isolated from a saline lake located in Mallorca, Spain. Cells of the strain, designated MACL01T, were Gram-negative, rod-shaped and motile by means of polar flagella. Colonies of strain MACL01T were white to cream in TSA medium, turning brown after 7 days of incubation; they were blue in thiosulphate/citrate/bile salts/sucrose agar medium. A neighbour-joining phylogenetic analysis based on 16S rRNA gene sequences showed that strain MACL01T belongs to the genus Photobacterium, in which it forms a distinct lineage together with Photobacterium rosenbergii and Photobacterium ganghwense (showing 96.9 and 96.2 % similarity, respectively). The most closely related taxon according to phylogenetic analysis of the rpoA gene is also P. rosenbergii (90 % similarity). The recA gene also showed low similarity (83.7, 83.4 and 82.4 %, respectively) with respect to those of Vibrio proteolyticus LMG 3772T, Photobacterium leiognathii LMG 4228T and P. rosenbergii LMG 22223T. Neighbour-joining phylogenetic analysis of the rpoA and recA genes confirms that strain MACL01T belongs to the genus Photobacterium, forming a branch together with P. rosenbergii. Strain MACL01T was able to grow in 0–8 % NaCl. Growth occurred between 4 and 37 °C (optimum, 28 °C) and at pH 5–8.5. Luminescence was negative on marine agar. Strain MACL01T was found to be sensitive to the vibriostatic agent O/129. It reduced nitrate to nitrite, produced β-galactosidase and hydrolysed gelatin, but did not produce arginine dihydrolase, indole or acetoin. Strain MACL01T used several carbohydrates and fermented glucose, l-arabinose and sucrose. The most abundant fatty acids were summed feature 3 (32.6 %; comprising C16 : 1 ω7c and/or C15 : 0 iso 2-OH), C16 : 0 (21.2 %) and C18 : 1 ω7c (19.9 %). The G+C content of the genomic DNA was 49.8 mol%. On the basis of genotypic, phenotypic, chemotaxonomic and phylogenetic results, strain MACL01T (=LMG 22194T=CECT 5860T) should be classified as the type strain of a novel species of the genus Photobacterium, for which the name Photobacterium halotolerans sp. nov. is proposed.


2013 ◽  
Vol 63 (Pt_5) ◽  
pp. 1639-1645 ◽  
Author(s):  
Lei Zhang ◽  
Xihui Shen ◽  
Yingbao Liu ◽  
Shiqing Li

A Gram-staining-negative, rod-shaped, gliding and pale-pink-pigmented bacterium, designated strain ZLM-10T, was isolated from a soil sample collected from an arid area in Xinjiang province, China, and characterized in a taxonomic study using a polyphasic approach. The novel strain grew optimally at 30–37 °C and in the presence of 2 % (w/v) sea salts. The only respiratory quinone detected was MK-7 and the major cellular fatty acids were summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1ω7c), iso-C15 : 0 and iso-C17 : 0 3-OH. The polar lipids consisted of diphosphatidylglycerol, phosphatidylethanolamine, an unidentified aminolipid and two unidentified aminophospholipids. The DNA G+C content was 45.4 mol%. Flexirubin-type pigments were not produced. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain ZLM-10T was a member of the phylum Bacteroidetes and appeared most closely related to Cesiribacter roseus 311T (90.2 % sequence similarity), Marivirga sericea LMG 13021T (89.2 %), Cesiribacter andamanensis AMV16T (89.1 %) and Marivirga tractuosa DSM 4126T (89.1 %). On the basis of phenotypic and genotypic data and phylogenetic inference, strain ZLM-10T should be classified as a novel species of a new genus in the family Flammeovirgaceae , for which the name Nafulsella turpanensis gen. nov., sp. nov. is proposed. The type strain of the type species is ZLM-10T ( = CCTCC AB 208222T = KCTC 23983T).


2014 ◽  
Vol 64 (Pt_10) ◽  
pp. 3473-3477 ◽  
Author(s):  
Qian-Qian Liu ◽  
Xiao-Li Li ◽  
Alejandro P. Rooney ◽  
Zong-Jun Du ◽  
Guan-Jun Chen

A novel Gram-stain-negative, facultatively anaerobic, catalase- and oxidase-positive, non-motile and pink-pigmented bacterium, designated G22T, was isolated from Gahai, a saltwater lake in Qinghai province, China. Optimal growth occurred at 33–35 °C, pH 7.0–7.5, and in the presence of 2–4 % (w/v) NaCl. The DNA G+C content was 40.0 mol%. The major polar lipids were phosphatidylethanolamine and three unknown lipids. The predominant cellular fatty acids were iso-C15 : 0, anteiso-C15 : 0, iso-C17 : 0 3-OH and iso-C15 : 0 3-OH, and MK-7 was the main respiratory quinone. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain G22T fell within the class Bacteroidia . Its closest phylogenetic neighbour was the recently described species Draconibacterium orientale , the sole member of the family Draconibacteriaceae , with merely 90.04 % sequence similarity. On the basis of phenotypic, chemotaxonomic and phylogenetic evidence observed, a novel species in a new genus, Tangfeifania diversioriginum gen. nov., sp. nov., is proposed within the family Draconibacteriaceae . The type strain is G22T ( = CICC 10587T = DSM 27063T).


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