scholarly journals Sediminitomix flava gen. nov., sp. nov., of the phylum Bacteroidetes, isolated from marine sediment

2007 ◽  
Vol 57 (8) ◽  
pp. 1689-1693 ◽  
Author(s):  
Shams Tabrez Khan ◽  
Yasuyoshi Nakagawa ◽  
Shigeaki Harayama

A novel bacterium designated Mok-1-85T was isolated from a marine sediment sample collected from Okinawa Island, Japan. Cells of strain Mok-1-85T stained Gram-negative, were catalase- and oxidase-positive and were non-motile. In a neighbour-joining tree based on 16S rRNA gene sequences, the novel strain clustered with the genus Flammeovirga, a member of the family ‘Flammeovirgaceae’. The novel isolate shared low 16S rRNA gene sequence similarities (≤86 %) with the members of the genus Flammeovirga and other related taxa. The major isoprenoid quinone was MK-7 and the predominant fatty acids of this organism were iso-C15 : 0, C16 : 1 ω5c and C16 : 0 3-OH. The G+C content of the DNA was 38 mol%. Combined phylogenetic and physiological data showed that strain Mok-1-85T represents a novel genus and species for which the name Sediminitomix flava gen. nov., sp. nov. is proposed. The type strain is Mok-1-85T (=NBRC 101625T=KCTC 12970T=CIP 109411T).

2015 ◽  
Vol 65 (Pt_7) ◽  
pp. 2064-2070 ◽  
Author(s):  
Rahul R. Mawlankar ◽  
Poonam Mual ◽  
Vidya V. Sonalkar ◽  
Meghana N. Thorat ◽  
Ashish Verma ◽  
...  

A novel bacterium (strain NIO-1002T) belonging to the genus Microbacterium was isolated from a marine sediment sample in Chorao Island, Goa Province, India. Its morphology, physiology, biochemical features and 16S rRNA gene sequence were characterized. Cells of this strain were Gram-stain-positive, non-motile, non-spore-forming rods that formed yellow-pigmented colonies. It grew in 0–12 % (w/v) NaCl and at 25–37 °C, with optimal growth at 30 °C. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain NIO-1002T is associated with members of the genus Microbacterium, with highest sequence similarity with Microbacterium hominis CIP 105731T (98.1 %) and Microbacterium testaceum KCTC 9103T (98.0 %). Within the phylogenetic tree, this novel strain shared a branching point with M. hominis CIP 105731T. The DNA G+C content was 66.5 mol% and DNA–DNA hybridization relatedness between NIO-1002T, M. hominis CIP 105731T and M. testaceum KCTC 9103T was 39.0 ± 2.0 % and 41.0 ± 2.0 %, respectively. The major fatty acids were ai-C15 : 0, i-C16 : 0 and ai-C17 : 0 and the diamino acid in the cell-wall peptidoglycan of NIO-1002T was lysine. Data obtained from DNA–DNA hybridization and chemotaxonomic phenotypic analysis support the conclusion that strain NIO-1002T represents a novel species within the genus Microbacterium. The name Microbacterium enclense sp. nov. is proposed, with NIO-1002T ( = NCIM 5454T = DSM 25125T = CCTCC AB 2011120T) as the type strain.


2014 ◽  
Vol 64 (Pt_6) ◽  
pp. 1998-2002 ◽  
Author(s):  
Zhao Jiang ◽  
Dao-Feng Zhang ◽  
Thi-Nhan Khieu ◽  
Chu Ky Son ◽  
Xiao-Mei Zhang ◽  
...  

A novel Gram-stain-positive, motile, catalase- and oxidase-positive, aerobic, endospore-forming, peritrichous, rod-shaped bacterium, designated YIM M13235T, was isolated from a marine sediment sample collected from the South China Sea. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain YIM M13235T belonged to the genus Bacillus . The strain grew optimally at 30 °C, pH 7.0 and in the presence of 2–4 % (w/v) NaCl. meso-Diaminopimelic acid was present in the cell-wall peptidoglycan. Strain YIM M13235T exhibited a menaquinone system with MK-7, and the major polar lipids consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, four unknown phospholipids and one unknown glycolipid. The major fatty acids (>5 %) were iso-C15 : 0, anteiso-C15 : 0, anteiso-C17 : 0, iso-C17 : 1ω10c and summed feature 4 (anteiso-C17 : 1 and/or iso-C17 : 1). The genomic DNA G+C content was 42.1 mol%. The DNA–DNA relatedness values between strain YIM M13235T and its close relatives (16S rRNA gene sequence similarities >97 %) including Bacillus halmapalus DSM 8723T, Bacillus horikoshii DSM 8719T and Bacillus zhanjiangensis JSM 099021T were 41 %, 44 % and 44 %, respectively. On the basis of genotypic, phenotypic and DNA–DNA relatedness data, it is apparent that strain YIM M13235T represents a novel species of the genus Bacillus , for which the name Bacillus tianshenii sp. nov. is proposed. The type strain is YIM M13235T ( = DSM 25879T = KCTC 33044T).


2012 ◽  
Vol 62 (Pt_8) ◽  
pp. 1914-1920 ◽  
Author(s):  
Wonyong Kim ◽  
Jitsopin Traiwan ◽  
Mi-Hak Park ◽  
Min Young Jung ◽  
Su-Jin Oh ◽  
...  

A Gram-staining-positive, strictly aerobic, non-spore-forming, rod-shaped bacterial strain, CAU 9163T, was isolated from marine sediment collected in the Republic of Korea and its taxonomic position was investigated using a polyphasic approach. The novel strain grew optimally at 30 °C and pH 8.0. In phylogenetic analysis based on 16S rRNA gene sequences, strain CAU 9163T formed a hitherto unknown lineage within the order Bacillales , which contains the genera Planomicrobium , Planococcus , Sporosarcina , Rummeliibacillus , Viridibacillus , Lysinibacillus and Bacillus . The levels of 16S rRNA gene sequence similarity between the novel strain and any established bacterial species were all <95.7 %. The major isoprenoid quinines of strain CAU 9163T were MK-8 (65.2 %) and MK-7 (22.8 %) and the predominant fatty acid was anteiso-C15 : 0. The peptidoglycan was of the A4α type and based on l-Lys-d-Asp. The major whole-cell sugars were ribose and glucose. The polar lipid profile mainly consisted of phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylglycerol, an unidentified glycolipid and an unidentified polar lipid. The genomic DNA G+C content of the novel strain was 44.3 mol%. These data were sufficient to differentiate the novel strain from established genera in the phylum Firmicutes . Based on the phenotypic, chemotaxonomic and genotypic evidence, strain CAU 9163T represents a novel species in a new genus for which the name Chungangia koreensis gen. nov., sp. nov. is proposed. The type strain of Chungangia koreensis is 9163T ( = KCTC 13729T  = CCUG 59778T).


2015 ◽  
Vol 65 (Pt_12) ◽  
pp. 4743-4748 ◽  
Author(s):  
Hassan Tirandaz ◽  
Seyed Mohammad Mehdi Dastgheib ◽  
Mohammad Ali Amoozegar ◽  
Mahmoud Shavandi ◽  
Rafael R. de la Haba ◽  
...  

Strain RIPI 110T was isolated from a soil sample collected from an oil-contaminated site on Siri Island, Persian Gulf, Iran. Cells of the novel isolate were Gram-stain-negative, facultatively anaerobic, non-motile and rod-shaped. Cells divided asymmetrically by budding and formed rosette-like clusters. The optimum pH and temperature for growth were pH 7 and 30 °C, while the strain was able to grow at pH 5.5–8 and 15–35 °C. Strain RIPI 110T utilized only complex carbon sources and pyruvate as the sole carbon source and could not grow under photoautotrophic conditions. The highest 16S rRNA gene sequence similarities, 93.9, 93.9 and 93.5 %, were obtained with Variibacter gotjawalensis GJW-30T, Rhodoplanes roseus 941T and Rhodoplanes elegans AS130T, respectively. The major cellular fatty acids were summed feature 8 (C18 : 1ω7c/ω6c), C16 : 0 and C19 : 0 cyclo ω8c. Polar lipid analyses revealed that strain RIPI 110T contained phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylglycerol, an unknown aminophospholipid and four unknown phospholipids. Ubiquinone-10 was the predominant quinone component. The DNA G+C content was 59.4 mol%. On the basis of the 16S rRNA gene sequence analysis, in combination with chemotaxonomic and physiological data, the novel isolate could not be classified in any recognized genera. Strain RIPI 110T is thus considered to represent a novel species of a new genus within the order Rhizobiales, for which the name Pseudorhodoplanes sinuspersici gen. nov., sp. nov. is proposed. The type strain of the type species is RIPI 110T ( = IBRC-M 10770T = CECT 8374T).


2006 ◽  
Vol 56 (7) ◽  
pp. 1547-1552 ◽  
Author(s):  
Michael Fahrbach ◽  
Jan Kuever ◽  
Ruth Meinke ◽  
Peter Kämpfer ◽  
Juliane Hollender

A Gram-negative, motile, denitrifying bacterium (strain AcBE2-1T) was isolated from activated sludge of a municipal wastewater treatment plant using 17β-oestradiol (E2) as sole source of carbon and energy. Cells were curved rods, 0.4–0.8×0.8–2.0 μm in size, non-fermentative, non-spore-forming, oxidase-positive and catalase-negative. E2 was oxidized completely to carbon dioxide and water by reduction of nitrate to a mixture of dinitrogen monoxide and dinitrogen, with the intermediate accumulation of nitrite. Electron recoveries were between 90 and 100 %, taking assimilated E2 into account. With nitrate as the electron acceptor, the bacterium also grew on fatty acids (C2 to C6), isobutyrate, crotonate, dl-lactate, pyruvate, fumarate and succinate. Phylogenetic analysis of its 16S rRNA gene sequence revealed that strain AcBE2-1T represents a separate line of descent within the family Rhodocyclaceae (Betaproteobacteria). The closest relatives are the cholesterol-degrading, denitrifying bacteria Sterolibacterium denitrificans DSM 13999T and strain 72Chol (=DSM 12783), with <93.9 % sequence similarity. The G+C content of the DNA was 61.4 mol%. Detection of a quinone system with ubiquinone Q-8 as the predominant compound and a fatty acid profile that included high concentrations of C16 : 1 ω7c/iso-C15 : 0 2-OH and C16 : 0, in addition to C18 : 1 ω7c and small amounts of C8 : 0 3-OH, supported the results of the phylogenetic analysis. On the basis of 16S rRNA gene sequence data in combination with chemotaxonomic and physiological data, strain AcBE2-1T (=DSM 16959T=JCM 12830T) is placed in a new genus Denitratisoma gen. nov. as the type strain of the type species Denitratisoma oestradiolicum gen. nov., sp. nov.


2011 ◽  
Vol 61 (7) ◽  
pp. 1606-1611 ◽  
Author(s):  
Enrico Tortoli ◽  
Erik C. Böttger ◽  
Anna Fabio ◽  
Enevold Falsen ◽  
Zoe Gitti ◽  
...  

Four strains isolated in the last 15 years were revealed to be identical in their 16S rRNA gene sequences to MCRO19, the sequence of which was deposited in GenBank in 1995. In a polyphasic analysis including phenotypic and genotypic features, the five strains (including MCRO19), which had been isolated in four European countries, turned out to represent a unique taxonomic entity. They are scotochromogenic slow growers and are genetically related to the group that included Mycobacterium simiae and 15 other species. The novel species Mycobacterium europaeum sp. nov. is proposed to accommodate these five strains. Strain FI-95228T ( = DSM 45397T  = CCUG 58464T) was chosen as the type strain. In addition, a thorough revision of the phenotypic and genotypic characters of the species related to M. simiae was conducted which leads us to suggest the denomination of the ‘Mycobacterium simiae complex’ for this group.


2007 ◽  
Vol 57 (8) ◽  
pp. 1901-1905 ◽  
Author(s):  
Yu-Qin Zhang ◽  
Li-Yan Yu ◽  
Hong-Yu Liu ◽  
Yue-Qin Zhang ◽  
Li-Hua Xu ◽  
...  

A moderately halophilic bacterium, strain YIM 70202T, was isolated from a desert soil sample collected from Egypt and was subjected to a taxonomic investigation. In a phylogenetic dendrogram based on 16S rRNA gene sequence analysis, strain YIM 70202T was affiliated to the Salinicoccus clade, showing 94.5–96.8 % 16S rRNA gene sequence similarity to the recognized species of the genus Salinicoccus, in which Salinicoccus roseus CCM 3516T was the nearest neighbour. The DNA–DNA relatedness value of the novel isolate with S. roseus CCM 3516T was 12.7 %. The novel isolate grew at temperatures between 4 and 45 °C and at pH values ranging from 7.0 to 11.0, with an optimum of 30 °C and pH 8.0–9.0, respectively. Strain YIM 70202T grew optimally in the presence of 10 % NaCl (w/v) and growth was observed at NaCl concentrations in the range 1–25 % (w/v). Chemotaxonomic data revealed that strain YIM 70202T contained MK-6 as the predominant respiratory quinone, possessed l-Lys–Gly5 as the cell-wall peptidoglycan, had phosphatidylglycerol, diphosphatidylglycerol and an unknown glycolipid as the polar lipids and contained i-C15 : 0 and ai-C15 : 0 as the predominant fatty acids. The DNA G+C content was 49.7 mol%. The biochemical and chemotaxonomic properties demonstrate that strain YIM 70202T represents a novel species of the genus Salinicoccus. The name Salinicoccus luteus sp. nov. is proposed with strain YIM 70202T (=CGMCC 1.6511T=KCTC 3941T) as the type strain.


2011 ◽  
Vol 61 (8) ◽  
pp. 1899-1905 ◽  
Author(s):  
Tristan Barbeyron ◽  
Yannick Lerat ◽  
Jean-François Sassi ◽  
Sophie Le Panse ◽  
William Helbert ◽  
...  

A rod shaped, Gram-stain-negative, chemo-organotrophic, heterotrophic, strictly aerobic, non-gliding bacterium, designated strain PLRT, was isolated from faeces of the mollusc Aplysia punctata (Mollusca, Gastropoda) that had been fed with green algae belonging to the genus Ulva. The novel strain was able to degrade ulvan, a polysaccharide extracted from green algae (Chlorophyta, Ulvophyceae). The taxonomic position of strain PLRT was investigated by using a polyphasic approach. Strain PLRT was dark orange, oxidase-positive, catalase-positive and grew optimally at 25 °C, at pH 7.5 and in the presence of 2.5 % (w/v) NaCl with an oxidative metabolism using oxygen as the electron acceptor. Nitrate could not be used as the electron acceptor. Strain PLRT had a Chargaff’s coefficient (DNA G+C content) of 35.3 mol%. Phylogenetic analysis based on the sequence of the 16S rRNA gene placed the novel strain in the family Flavobacteriaceae (phylum ‘Bacteroidetes’), within a clade comprising Stenothermobacter spongiae, Nonlabens tegetincola, Sandarakinotalea sediminis, Persicivirga xylanidelens and Persicivirga dokdonensis. The closest neighbours of strain PLRT were P. xylanidelens and P. dokdonensis, sharing 95.2 and 95.5 % 16S rRNA gene sequence similarity, respectively. Phylogenetic inference and differential phenotypic characteristics demonstrated that strain PLRT represents a novel species of the genus Persicivirga, for which the name Persicivirga ulvanivorans sp. nov. is proposed. The type strain is PLRT ( = CIP 110082T = DSM 22727T).


Author(s):  
Selma Vieira ◽  
Katharina J. Huber ◽  
Meina Neumann-Schaal ◽  
Alicia Geppert ◽  
Manja Luckner ◽  
...  

Members of the metabolically diverse order Nitrosomonadales inhabit a wide range of environments. Two strains affiliated with this order were isolated from soils in Germany and characterized by a polyphasic approach. Cells of strains 0125_3T and Swamp67T are Gram-negative rods, non-motile, non-spore-forming, non-capsulated and divide by binary fission. They tested catalase-negative, but positive for cytochrome c-oxidase. Both strains form small white colonies on agar plates and grow aerobically and chemoorganotrophically on SSE/HD 1 : 10 medium, preferably utilizing organic acids and proteinaceous substrates. Strains 0125_3T and Swamp67T are mesophilic and grow optimally without NaCl addition at slightly alkaline conditions. Major fatty acids are C16 : 1  ω7c, C16 : 0 and C14 : 0. The major polar lipids are diphosphatidylglycerol, phosphatidylethanolamine and phosphatidyglycerol. The predominant respiratory quinone is Q-8. The G+C content for 0125_3T and Swamp67T was 67 and 66.1 %, respectively. The 16S rRNA gene analysis indicated that the closest relatives (<91 % sequence similarity) of strain 0125_3T were Nitrosospira multiformis ATCC 25196T, Methyloversatilis universalis FAM5T and Denitratisoma oestradiolicum AcBE2-1T, while Nitrosospira multiformis ATCC 25196T, Nitrosospira tenuis Nv1T and Nitrosospira lacus APG3T were closest to strain Swamp67T. The two novel strains shared 97.4 % 16S rRNA gene sequence similarity with one another and show low average nucleotide identity of their genomes (83.8 %). Based on the phenotypic, chemotaxonomic, genomic and phylogenetic analysis, we propose the two novel species Usitatibacter rugosus sp. nov (type strain 0125_3T=DSM 104443T=LMG 29998T=CECT 9241T) and Usitatibacter palustris sp. nov. (type strain Swamp67T=DSM 104440T=LMG 29997T=CECT 9242T) of the novel genus Usitatibacter gen. nov., within the novel family Usitatibacteraceae fam. nov.


2012 ◽  
Vol 62 (2) ◽  
pp. 322-329 ◽  
Author(s):  
William J. Wolfgang ◽  
An Coorevits ◽  
Jocelyn A. Cole ◽  
Paul De Vos ◽  
Michelle C. Dickinson ◽  
...  

Twelve independent isolates of a Gram-positive, endospore-forming rod were recovered from clinical specimens in New York State, USA, and from raw milk in Flanders, Belgium. The 16S rRNA gene sequences for all isolates were identical. The closest species with a validly published name, based on 16S rRNA gene sequence, is Sporosarcina koreensis (97.13 % similarity). DNA–DNA hybridization studies demonstrate that the new isolates belong to a species distinct from their nearest phylogenetic neighbours. The partial sequences of the 23S rRNA gene for the novel strains and their nearest neighbours also provide support for the novel species designation. Maximum-likelihood phylogenetic analysis of the 16S rRNA gene sequences confirmed that the new isolates are in the genus Sporosarcina. The predominant menaquinone is MK-7, the peptidoglycan has the type A4α l-Lys–Gly–d-Glu, and the polar lipids consist of diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine. The predominant fatty acids are iso-C14 : 0, iso-C15 : 0 and anteiso-C15 : 0. In addition, biochemical and morphological analyses support designation of the twelve isolates as representatives of a single new species within the genus Sporosarcina, for which the name Sporosarcina newyorkensis sp. nov. (type strain 6062T  = DSM 23544T  = CCUG 59649T  = LMG 26022T) is proposed.


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