- Volume 63, Issue Pt_8, 2013
Volume 63, Issue Pt_8, 2013
- New Taxa
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- Firmicutes and Related Organisms
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Bacillus thermocopriae sp. nov., isolated from a compost
More LessA Gram-reaction-positive, facultatively anaerobic, motile, endospore-forming, rod-shaped strain, designated SgZ-7T, was isolated from a windrow compost pile and was characterized by means of a polyphasic approach. Growth occurred with 0–3 % (w/v) NaCl (optimum 1 %), at pH 6.0–10.0 (optimum pH 7.2) and at 40–60 °C (optimum 50 °C). The main respiratory quinone was MK-7. The predominant polar lipids were phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol. The major fatty acids were iso-C15 : 0 and anteiso-C15 : 0. The DNA G+C content was 46.6 mol%. The phylogenetic analysis based on 16S rRNA gene sequence comparisons revealed that strain SgZ-7T should be assigned to the genus Bacillus and was related most closely to Bacillus drentensis LMG 21831T (sequence similarity 97.2 %). The result of the DNA–DNA hybridization experiment revealed a low relatedness (27.2 %) between the isolate and B. drentensis LMG 21831T. The results of phenotypic, chemotaxonomic and genotypic analyses clearly indicated that strain SgZ-7T represents a novel species, for which the name Bacillus thermocopriae sp. nov. is proposed. The type strain is SgZ-7T ( = CCTCC AB 2012030T = KACC 16700T).
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Bacillus composti sp. nov. and Bacillus thermophilus sp. nov., two thermophilic, Fe(III)-reducing bacteria isolated from compost
More LessTwo novel thermophilic bacteria, designated SgZ-9T and SgZ-10T, were isolated from compost. Cells of the two strains were catalase-positive, endospore-forming and Gram-staining-positive rods. Strain SgZ-9T was oxidase-positive and non-motile, and strain SgZ-10T was oxidase-negative and motile. The highest 16S rRNA gene sequence similarity for both strains SgZ-9T and SgZ-10T was observed with Bacillus fortis (97.5 % and 96.9 %, respectively). Phylogenetic analysis based on 16S rRNA gene sequences showed that strain SgZ-9T formed a cluster with B. fortis R-6514T and Bacillus fordii R-7190T, and SgZ-10T formed a cluster with Bacillus farraginis R-6540T. The DNA–DNA pairing studies showed that SgZ-9T displayed 41.6 % and 30.7 % relatedness to the type strains of B. fortis and B. fordii , respectively. The 16S rRNA gene sequence similarity between strains SgZ-9T and SgZ-10T was 97.2 %, and the level of DNA–DNA relatedness between them was 39.2 %. The DNA G+C content of SgZ-9T and SgZ-10T was 45.3 and 47.9 mol%, respectively. Chemotaxonomic analysis revealed that both strains contained the menaquinone 7 (MK-7) as the predominant respiratory quinone. The major cellular fatty acids (>5 %) were iso-C15 : 0, anteiso-C15 : 0, anteiso-C17 : 0, iso-C16 : 0 and iso-C17 : 0 in SgZ-9T and iso-C15 : 0, anteiso-C15 : 0, iso-C17 : 0, anteiso-C17 : 0 and iso-C16 : 0 in SgZ-10T. Based on the phenotypic characteristics, chemotaxonomic features, DNA–DNA hybridization with the nearest phylogenetic neighbours and phylogenetic analysis based on the 16S rRNA gene sequences, the two strains were determined to be two distinct novel species in the genus Bacillus , and the names proposed are Bacillus composti sp. nov. SgZ-9T ( = CCTCC AB2012109T = KACC 16872T) and Bacillus thermophilus sp. nov. SgZ-10T (CCTCC AB2012110T = KACC 16873T).
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Enterococcus alcedinis sp. nov., isolated from common kingfisher (Alcedo atthis)
Two Gram-positive, catalase-negative bacterial strains were isolated from the cloaca of common kingfishers (Alcedo atthis). Repetitive sequence-based PCR fingerprinting using the (GTG)5 primer grouped these isolates into a single cluster separated from all known enterococcal species. The two strains revealed identical 16S rRNA gene sequences placing them within the genus Enterococcus with Enterococcus aquimarinus LMG 16607T as the closest relative (97.14 % similarity). Further taxonomic investigation using sequencing of the genes for the superoxide dismutase (sodA), phenylalanyl-tRNA synthase alpha subunit (pheS) and the RNA polymerase alpha subunit (rpoA) as well as application of whole-cell protein fingerprinting, automated ribotyping and extensive phenotyping confirmed that both strains belong to the same species. Based on data from this polyphasic study, these strains represent a novel species of the genus Enterococcus , for which the name Enterococcus alcedinis sp. nov. is proposed. The type strain is L34T ( = CCM 8433T = LMG 27164T).
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- Other Bacteria
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Ardenticatena maritima gen. nov., sp. nov., a ferric iron- and nitrate-reducing bacterium of the phylum ‘ Chloroflexi ’ isolated from an iron-rich coastal hydrothermal field, and description of Ardenticatenia classis nov.
A novel thermophilic, chemoheterotrophic, Gram-negative-staining, multicellular filamentous bacterium, designated strain 110ST, was isolated from an iron-rich coastal hydrothermal field in Japan. The isolate is facultatively aerobic and chemoheterotrophic. Phylogenetic analysis using 16S rRNA gene sequences nested strain 110ST in a novel class-level clone cluster of the phylum ‘ Chloroflexi ’. The isolate grows by dissimilatory iron- and nitrate-reduction under anaerobic conditions, which is the first report of these abilities in the phylum ‘ Chloroflexi ’. The organism is capable of growth with oxygen, ferric iron and nitrate as a possible electron acceptor, has a wide range of growth temperatures, and tolerates higher NaCl concentrations for growth compared to the other isolates in the phylum. Using phenotypic and phylogenetic data, strain 110ST ( = JCM 17282T = NBRC 107679T = DSM 23922T = KCTC 23289T = ATCC BAA-2145T) is proposed as the type strain of a novel species in a new genus, Ardenticatena maritima gen. nov., sp. nov. In addition, as strain 110ST apparently constitutes a new class of the phylum ‘ Chloroflexi ’ with other related uncultivated clone sequences, we propose Ardenticatenia classis nov. and the subordinate taxa Ardenticatenales ord. nov. and Ardenticatenaceae fam. nov.
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Mesotoga infera sp. nov., a mesophilic member of the order Thermotogales , isolated from an underground gas storage aquifer
Strain VNs100T, a novel mesophilic, anaerobic, rod-coccoid-shaped bacterium, having a sheath-like outer structure (toga), was isolated from a water sample collected in the area of an underground gas storage aquifer. It was non-motile with cells appearing singly (2–4 µm long×1–2 µm wide), in pairs or as long chains and stained Gram-negative. Strain VNs100T was heterotrophic, able to use arabinose, cellobiose, fructose, galactose, glucose, lactose, lactate, mannose, maltose, raffinose, ribose, sucrose and xylose as energy sources only in the presence of elemental sulfur as terminal electron acceptor. Acetate, CO2 and sulfide were the end products of sugar metabolism. Hydrogen was not detected. Elemental sulfur, but not thiosulfate, sulfate or sulfite, were reduced to sulfide. Strain VNs100T grew at temperatures between 30 and 50 °C (optimum 45 °C), at pH values between 6.2 and 7.9 (optimum 7.3–7.5) and at NaCl concentrations between 0 and 15 g l−1 (optimum 2 g l−1). The DNA G+C content was 47.5 mol%. The main cellular fatty acid was C16 : 0. Phylogenetic analysis of the small subunit rRNA gene sequence indicated that strain VNs100T had as its closest relatives ‘ Mesotoga sulfurireducens’ (97.1 % similarity) and Mesotoga prima (similarity of 97.1 % and 97.7 % with each of its two genes, respectively) within the order Thermotogales . Hybridization between strain VNS100T and ‘M. sulfurireducens’ and between strain VNS100T and M. prima showed 12.9 % and 20.6 % relatedness, respectively. Based on phenotypic, phylogenetic and taxonomic characteristics, strain VNs100T is proposed as a representative of a novel species of the genus Mesotoga in the family Thermotogaceae , order Thermotogales . The name Mesotoga infera sp. nov. is proposed. The type strain is VNs100T ( = DSM 25546T = JCM 18154T).
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Brevifollis gellanilyticus gen. nov., sp. nov., a gellan-gum-degrading bacterium of the phylum Verrucomicrobia
More LessThe taxonomic properties of strain DC2c-G4T, a Gram-staining-negative, ovoid, gellan-gum-degrading bacterial isolate, were examined. Phylogenetic analysis based on 16S rRNA gene sequences identified this isolate as a member of the phylum Verrucomicrobia and closest to the genus Prosthecobacter . The 16S rRNA gene sequence similarities between this isolate and any of the type strains of species of the genus Prosthecobacter were less than 95 %. In addition, the absence of a single prostheca and the predominant menaquinone MK-7(H2) supported the differentiation of this isolate from the genus Prosthecobacter . Here, we propose Brevifollis gellanilyticus gen. nov., sp. nov. to accommodate the isolate. The type strain of the type species is DC2c-G4T ( = NBRC 108608T = CIP 110457T).
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- Proteobacteria
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Mesorhizobium sangaii sp. nov., isolated from the root nodules of Astragalus luteolus and Astragalus ernestii
More LessOur previous published data indicated that the two rhizobial strains SCAU7T and SCAU27, which were isolated from the root nodules of Astragalus luteolus and Astragalus ernestii respectively, in Sichuan Province, China, might be novel species of the genus Mesorhizobium . Their exact taxonomic position was determined in the present study by using polyphasic approaches. Comparative analysis of nearly full-length 16S rRNA gene sequences showed that these strains belonged to the genus Mesorhizobium , with Mesorhizobium ciceri USDA 3383T, Mesorhizobium loti NZP 2213T, Mesorhizobium shangrilense CCBAU 65327T and Mesorhizobium australicum WSM2073T as the closest neighbours (>99 % 16S rRNA gene sequence similarity). Phylogenies of the housekeeping genes atpD and recA confirmed their distinct position, showing low similarity with respect to those of M. loti LMG 6125T (96.5 % and 92.3 % similarity respectively), M. ciceri USDA 3383T (96.8 % and 93.3 % similarity, respectively), M. shangrilense CCBAU 65327T (96.5 % and 92.7 % similarity, respectively) and M. australicum WSM2073T (95.4 % and 90.6 % similarity, respectively). The DNA–DNA relatedness values between strain SCAU7T and strain SCAU27 were 83.0 %, showing that they belong to the same species. The DNA–DNA relatedness values of SCAU7T with M. loti NZP 2213T, M. ciceri USDA 3383T and M. shangrilense CCBAU 65327T were 41.1 %, 48.8 % and 23.4 %, respectively, clearly indicating that strain SCAU7T represents a novel species. A series of phenotypic and genotypic tests and comparison of cellular fatty acids indicated that the novel group of isolates was distinct from previously described species. Therefore, we propose that strains SCAU7T and SCAU27 represent a novel species of the genus Mesorhizobium , Mesorhizobium sangaii sp. nov., with strain SCAU7T ( = HAMBI 3318T = ACCC 13218T) as the type strain.
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Iodobacter arcticus sp. nov., a psychrotolerant bacterium isolated from meltwater stream sediment of an Arctic glacier
More LessTwo novel violet-pigmented, Gram-negative, rod-shaped, non-motile bacteria, designated strains M4-16T and M4-9, were isolated from sediment from an Arctic glacier. The predominant fatty acids of both strains were C16 : 1ω7c and/or C16 : 1ω6c (summed feature 3), C16 : 0, C14 : 0 and C18 : 1ω7c and/or C18 : 1ω6c (summed feature 8) and both strains contained ubiquinone-8 as the respiratory quinone. The polar lipids consisted of phosphatidylethanolamine, two unidentified phospholipids and one unidentified aminolipid. 16S rRNA gene sequence analysis indicated that strains M4-16T and M4-9 were members of the genus Iodobacter and closely related to Iodobacter fluviatilis ATCC 33051T with pairwise sequence similarity of 98.9 %. The DNA–DNA relatedness between strains M4-9 and M4-16T was 92.5 %, while strains M4-9 and M4-16T had DNA–DNA relatedness values of 21.5 and 18.2 %, respectively, with Iodobacter fluviatilis JCM 9044T. The RAPD-PCR banding patterns of strains M4-9 and M4-16T were similar but differed from that of Iodobacter fluviatilis JCM 9044T. Based on data from the current polyphasic study, strains M4-16T and M4-9 represent a novel species of the genus Iodobacter , for which the name Iodobacter arcticus sp. nov. is proposed. The type strain of Iodobacter arcticus is M4-16T ( = CIP 1103011T = MTCC 11351T).
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Reclassification of [Glaciecola] lipolytica and [ Aestuariibacter] litoralis in Aliiglaciecola gen. nov., as Aliiglaciecola lipolytica comb. nov. and Aliiglaciecola litoralis comb. nov., respectively
Following phylogenetic analysis based on 16S rRNA gene sequences, together with DNA G+C contents and differential chemotaxonomic and physiological characteristics, a new genus with the name Aliiglaciecola gen. nov. is proposed to more appropriately accommodate two recognized species of the genera Glaciecola and Aestuariibacter . Accordingly, [Glaciecola] lipolytica and [ Aestuariibacter] litoralis should be reassigned to the novel genus as Aliiglaciecola lipolytica comb. nov. (type strain, E3T = JCM 15139T = CGMCC 1.7001T) and Aliiglaciecola litoralis comb. nov. (type strain, KMM 3894T = JCM 15896T = NRIC 0754T), respectively. Aliiglaciecola lipolytica is proposed as the type species of this new genus. Physiologically, the combined characteristics of positive reactions for nitrate reduction and growth at 4 °C and 36 °C distinguish the new genus from the genera Aestuariibacter and Glaciecola by one to three traits. Moreover, the new genus is also distinguished from the genus Glaciecola by the fatty acid profile and distinguished from the genus Aestuariibacter by the differences of major isoprenoid quinone (MK-7 vs Q-8) and DNA G+C content (40.8–43.0 mol% vs 48.0–54.0 mol%).
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Defluviimonas aestuarii sp. nov., a marine bacterium isolated from a tidal flat, and emended description of the genus Defluviimonas Foesel et al. 2011
More LessA novel Gram-staining-negative, strictly aerobic bacterium, designated BS14T, was isolated from a marine tidal flat of the South Sea in Korea. Colonies were opaque, white, smooth and circular on marine agar. Cells were moderately halophilic, non-motile rods showing catalase- and oxidase-positive reactions. Growth of strain BS14T was observed at 5–40 °C (optimum: 30 °C), pH 6.5–9.5 (optimum: 7.0–7.5) and 0–10 % (w/v) NaCl (optimum: 1–1.5 %). The G+C content of the genomic DNA was 61.6 mol%. Strain BS14T contained ubiquinone-10 (Q-10) as the sole respiratory quinone and summed feature 8 (comprising C18 : 1ω7c and/or C18 : 1ω6c), C18 : 0 3-OH, C10 : 0 3-OH and C18 : 0 as the major fatty acids. The polar lipid pattern comprised phosphatidylethanolamine, diphosphatidylglycerol, an unidentified aminolipid, an unidentified phospholipid and an unidentified polar lipid. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain BS14T formed a tight phylogenetic lineage with Defluviimonas denitrificans D9-3T with a bootstrap value of 100 %. The 16S rRNA gene sequence similarity between strain BS14T and D. denitrificans D9-3T was 97.4 % and their DNA–DNA relatedness was 19.1±3.6 %. Based on the phenotypic and genotypic studies, strain BS14T represents a novel species of the genus Defluviimonas , for which the name Defluviimonas aestuarii sp. nov. is proposed. The type strain is BS14T ( = KACC 16442T = JCM 18630T). An emended description of the genus Defluviimonas Foesel et al. 2011 is also proposed.
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Proposal for a new class within the phylum Proteobacteria , Acidithiobacillia classis nov., with the type order Acidithiobacillales , and emended description of the class Gammaproteobacteria
More LessThe order Acidithiobacillales was previously assigned to the class Gammaproteobacteria . Recent analyses have indicated that this order actually lies outside all the proteobacterial classes, as a sister group to the combined classes Betaproteobacteria and Gammaproteobacteria . We now confirm this result with multiprotein phylogenetic analysis of all the available genomes of members of the order Acidithiobacillales and representatives of all available bacterial orders, and propose the new proteobacterial class, Acidithiobacillia, with the type order Acidithiobacillales , comprising the families Acidithiobacillaceae and Thermithiobacillaceae with the type genus Acidithiobacillus .
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Martelella endophytica sp. nov., an antifungal bacterium associated with a halophyte
More LessA Gram-staining-negative, non-spore-forming endophytic bacterium, designated strain YC6887T, was isolated from a root sample of a halophyte, Rosa rugosa, collected from a tidal flat area of Namhae Island, located at the southern end of Korea. Strain YC6887T was found to exhibit inhibitory activity against oomycete plant pathogens. The cells were non-motile and aerobic rods. The strain was able to grow at 4–40 °C (optimum 28–30 °C) and at pH 5.0–9.0 (optimum pH 7.0–8.5). Strain YC6887T was able to grow at NaCl concentrations of 0–9 % (w/v) with optimum growth at 4–5 % (w/v) NaCl, but NaCl is not essential for growth. Comparison of 16S rRNA gene sequences showed that the strain was a member of the genus Martelella , a member of order Rhizobiales , exhibiting highest similarity with Martelella mediterranea (98.6 %). The DNA–DNA relatedness between strain YC6887T and M. mediterranea MACL11T was 19.8±6.8. Chemotaxonomically, strain YC6887T contained C19 : 0 cyclo ω8c (28.0 %) and C18 : 1ω7c (17.9 %) as predominant fatty acids, confirming the affiliation of strain YC6887T with the genus Martelella . The major respiratory quinone was Q-10 and the DNA G+C content was 62.1 mol%. On the basis of phylogenetic analysis, physiological and biochemical characterization and DNA–DNA hybridization data, strain YC6887T should be classified as representing a novel species of the genus Martelella , for which the name Martelella endophytica sp. nov. is proposed. The type strain is YC6887T ( = KCCM 43011T = NBRC 109149T).
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Acinetobacter puyangensis sp. nov., isolated from the healthy and diseased part of Populus ×euramericana canker bark
Two Gram-negative, non-motile, rod-shaped strains, BQ4-1T and NHI3-2, isolated respectively from the healthy and diseased part of Populus ×euramericana canker bark, were characterized using a polyphasic approach. Chemotaxonomic characterization supported the inclusion of the two strains in the genus Acinetobacter , with genomic DNA G+C contents (42.5–43 mol%) within the range observed for this genus (38–47 mol%) and 9-octadecenoic acid (C18 : 1ω9c, 39.87 %), hexadecanoic acid (C16 : 0, 11.26 %) and summed feature 3 (comprising C16 : 1ω7c/C16 : 1ω6c, 18.90 %) as major fatty acids. Phylogenetic analysis based on 16S rRNA, rpoB and gyrB gene sequences revealed that strains BQ4-1T and NHI3 did not cluster with any species with validly published names, and formed a distinct cluster with 99–100 % bootstrap support on three phylogenetic trees within the genus Acinetobacter . Acid was not produced from d-glucose, and haemolysis was not observed on agar media supplemented with sheep erythrocytes. On the basis of phenotypic, genotypic and phylogenetic characteristics, the two strains are considered to represent a novel species of the genus Acinetobacter , for which the name Acinetobacter puyangensis sp. nov. is proposed. The type strain is BQ4-1T ( = CFCC 10780T = JCM 18011T).
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Thioclava dalianensis sp. nov., isolated from surface seawater
More LessA taxonomic study was carried out on strain DLFJ1-1T, which was isolated from an oil-degrading bacterial consortium, enriched by the surface seawater from around the Dalian Peninsula. The isolate was Gram-reaction-negative, oxidase- and catalase-positive, short-rod-shaped and non-motile. Growth was observed at salinities from 0.5 to 15 % and at temperatures from 4 to 37 °C; the strain was unable to degrade gelatin or to reduce nitrate. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain DLFJ1-1T belonged to the genus Thioclava , with the highest sequence similarity (96.4 %) to Thioclava pacifica TL 2T, while the similarities to other species examined were all below 95.0 %. The principal fatty acids were C19 : 0ω8c cyclo and summed feature 8 (C18 : 1ω7c/ω6c). The major quinone of strain DLFJ1-1T was Q10. The major polar lipids of strain DLFJ1-1T were phosphatidylethanolamine and phosphatidylglycerol. The G+C content of the chromosomal DNA was 62.5 mol%. The combined genotypic and phenotypic data show that strain DLFJ1-1T represents a novel species of the genus Thioclava , for which the name Thioclava dalianensis sp. nov. is proposed, with the type strain DLFJ1-1T ( = CGMCC 1.12325T = LMG 27290T = MCCC 1A03957T). An emended description of the genus Thioclava is also proposed.
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Vogesella fluminis sp. nov., isolated from a freshwater river, and emended description of the genus Vogesella
More LessA bacterial strain designated Npb-07T was isolated from a freshwater river in Taiwan and characterized using a polyphasic taxonomic approach. Strain Npb-07T was Gram-negative, aerobic, rod-shaped and motile by means of a single polar flagellum. Growth occurred at 10–37 °C (optimum, 20–30 °C), at pH 6.0–9.0 (optimum, pH 6.0–7.0) and with 0–1 % NaCl (optimum, 0.5 %). Phylogenetic analyses based on 16S rRNA gene sequences showed that strain Npb-07T belonged to the genus Vogesella and its most closely related neighbour was Vogesella indigofera ATCC 19706T with sequence similarity of 98.4 %. The major fatty acids were summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c, 44.4 %) and C16 : 0 (31.9 %). The major respiratory quinone was Q-8. The DNA G+C content of the genomic DNA was 65.3 mol%. The polar lipid profile consisted of a mixture of phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, two uncharacterized aminophospholipids and an uncharacterized phospholipid. The DNA–DNA relatedness of strain Npb-07T with respect to V. indigofera ATCC 19706T was less than 70 %. On the basis of the genotypic, chemotaxonomic and phenotypic data, strain Npb-07T represents a novel species in the genus Vogesella , for which the name Vogesella fluminis sp. nov. is proposed. The type strain is Npb-07T ( = LMG 26669T = BCRC 80377T = KCTC 23713T).
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Rhodospirillum oryzae sp. nov., a phototrophic bacterium isolated from rhizosphere soil of paddy
More LessA reddish-brown bacterium, designated strain JA318T, was purified from a photoheterotrophic enrichment culture obtained from the rhizosphere soil of paddy. Cells of strain JA318T are spiral shaped, Gram-stain-negative and motile by means of amphitrichous flagella. Strain JA318T has no NaCl requirement for growth but can tolerate up to 1.5 % (w/v) NaCl. Internal photosynthetic membranes are present as lamellar stacks. Photoorganoheterotrophy is the only growth mode observed. Strain JA318T contains bacteriochlorophyll a, lycopene and rhodopin as major carotenoids. Thiamine, niacin and para-aminobenzoic acid (PABA) are required as growth factors. Major fatty acids are C18 : 1ω7c and C16 : 0. Ubiquinone-8 and rhodoquinone-8 are the observed quinones. Diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and an unidentified aminolipid are the major polar lipids in strain JA318T. Phylogenetic analysis based on 16S rRNA gene sequences showed that the strain JA318T clustered with species of the genus Rhodospirillum which belongs to the class Alphaproteobacteria . The highest sequence similarity of strain JA318T was found with Rhodospirillum sulfurexigens JA143T (99.9 %). The DNA–DNA reassociation values of strain JA318T with Rsp. sulfurexigens JA143T and Rhodospirillum photometricum DSM 122T were 52±2 % and 45±1 %, respectively. The genomic DNA G+C content of strain JA318T was 60.2 mol%. Based on the morphological, physiological, chemotaxonomical and molecular evidence, strain JA318T is significantly different from the type strains of species of the genus Rhodospirillum , of the family Rhodospirillaceae , and it is proposed that the strain be classified as a representative of a novel species for which the name Rhodospirillum oryzae sp. nov. is proposed. The type strain is JA318T ( = KCTC 5960T = NBRC 107573T).
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Devosia submarina sp. nov., isolated from deep-sea surface sediments
More LessThe taxonomic status of two aerobic, Gram-stain-negative, orange–reddish pigmented, motile, rod-shaped bacteria, designated KMM 9415T and KMM 9416, isolated from a deep surface-sediment sample from the Sea of Japan, was defined. Comparative 16S rRNA gene sequence analysis of strains KMM 9415T and KMM 9416 revealed their affiliation to the genus Devosia with a high sequence similarity of 98.5 % to both Devosia psychrophila DSM 22950T and Devosia glacialis LMG 26051T. The novel strains were characterized by the predominance of the fatty acid C18 : 1ω7c followed by C16 : 1 and C16 : 0. The major isoprenoid quinone was Q-10 and the polar lipids comprised phosphatidylglycerol, phosphatidic acid and unknown glycolipids. The DNA–DNA hybridization value of 88 % between the novel strains KMM 9415T and KMM 9416 confirmed their assignment to the same species. The values of DNA relatedness determined for strain KMM 9415T and the closely related strains D. psychrophila DSM 22950T and D. glacialis LMG 26051T were 21 % and 23 %, respectively. Based on distinctive phenotypic characteristics, phylogenetic analysis and DNA–DNA relatedness, it can be concluded that the novel strains KMM 9415T and KMM 9416 represent a novel species within the genus Devosia , for which the name Devosia submarina sp. nov. is proposed. The type strain is the strain KMM 9415T ( = NRIC 0884T = JCM 18935T).
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- Errata
Volumes and issues
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