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  • Other Sources  (15)
  • Microbiology Society  (13)
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  • 1
    Publication Date: 2017-06-27
    Description: The bacterial strain Gp_4_7.1T, isolated from the marine sponge Isops phlegraei collected at the Sula Ridge off the Norwegian coast, was characterized. The isolate was a motile spirillum that was monopolarly and monotrichously flagellated. It was aerobic, Gram-negative, oxidase-positive and catalase-negative. Optimal growth occurred between 20 and 30 °C, at pH 7–8 and with a salt concentration of 2–3 % (w/v). The isolate showed a relatively restricted nutritional profile. Substrate utilization tests were only positive for arabinose. Enzyme tests were positive for esterase lipase C8, lipase C14, leucine arylamidase and naphthol-AS-BI-phosphohydrolase. The strain was not able to reduce nitrate. The major cellular fatty acids were C16 : 1 ω7 and C16 : 0. The DNA G+C content was 62.6 mol%. Phylogenetic analysis based on 16S rRNA gene sequence comparison classified the strain as a member of the order Oceanospirillales in the class Gammaproteobacteria. Strain Gp_4_7.1T formed a distinct phyletic line with less than 94 % 16S rRNA gene sequence similarity to its closest relatives with validly published names. Based on the determined data, it is proposed that the strain represents a novel species in a new genus, Spongiispira norvegica gen. nov., sp. nov.; the type strain of Spongiispira norvegica is Gp_4_7.1T (=DSM 17749T =NCIMB 14401T).
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  • 2
    Publication Date: 2017-06-27
    Description: Strain HAL40bT was isolated from the marine sponge Haliclona sp. 1 collected at the Sula Ridge off the Norwegian coast and characterized by physiological, biochemical and phylogenetic analyses. The isolate was a small rod with a polar flagellum. It was aerobic, Gram-negative and oxidase- and catalase-positive. Optimal growth was observed at 20–30 °C, pH 7–9 and in 3 % NaCl. Substrate utilization tests were positive for arabinose, Tween 40 and Tween 80. Enzyme tests were positive for alkaline phosphatase, esterase lipase (C8), leucine arylamidase, acid phosphatase, naphthol-AS-BI-phosphohydrolase and N-acetyl-β-glucosaminidase. The predominant cellular fatty acid was C17 : 1 ω8, followed by C17 : 0 and C18 : 1 ω7. Analysis by matrix-assisted laser desorption/ionization time-of-flight MS was used to characterize the strain, producing a characteristic low-molecular-mass protein pattern that could be used as a fingerprint for identification of members of this species. The DNA G+C content was 69.1 mol%. Phylogenetic analysis supported by 16S rRNA gene sequence comparison classified the strain as a member of the class Gammaproteobacteria. Strain HAL40bT was only distantly related to other marine bacteria including Neptunomonas naphthovorans and Marinobacter daepoensis (type strain sequence similarity 〉90 %). Based on its phenotypic, physiological and phylogenetic characteristics, it is proposed that the strain should be placed into a new genus as a representative of a novel species, Spongiibacter marinus gen. nov., sp. nov.; the type strain of Spongiibacter marinus is HAL40bT (=DSM 17750T =CCUG 54896T).
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  • 3
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    Microbiology Society
    In:  International Journal of Systematic and Evolutionary Microbiology, 58 (11). pp. 2660-2664.
    Publication Date: 2017-05-29
    Description: A coccoid, phototrophic purple sulfur bacterium was isolated in pure culture from a mud sample collected from brackish water in the Bhitarkanika mangrove forest of Orissa, India, in a medium containing 2 % NaCl (w/v). This bacterium, strain JA304T, was Gram-negative and had a requirement for NaCl. Intracellular photosynthetic membranes were of the vesicular type. The colour of the phototrophically grown culture was saddle-brown. Bacteriochlorophyll a and the carotenoid lycopene were present as photosynthetic pigments. Strain JA304T was able to grow photolithoautotrophically and could photoassimilate a number of organic substrates. Yeast extract was required for growth of strain JA304T. The DNA G+C content was 68.1–68.9 mol%. 16S rRNA gene sequence comparisons indicate that the isolate represents a member of the Chromatiaceae within the class Gammaproteobacteria. According to sequence comparison data, strain JA304T is positioned distinctly outside the group formed by the four genera Thiocystis, Chromatium, Allochromatium and Thermochromatium, with only 86.7–91.0 % sequence similarity. Distinct morphological, physiological and genotypic differences from these previously described taxa support the classification of this isolate as a representative of a novel species in a new genus, for which the name Thiophaeococcus mangrovi gen. nov., sp. nov. is proposed. The type strain of Thiophaeococcus mangrovi is JA304T (=JCM 14889T =DSM 19863T). PABA, para-aminobenzoic acid The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain JA304T is AM748925. A phase-contrast micrograph and whole-cell absorption spectrum and an acetone spectrum of extracted pigments of strain JA304T are available as supplementary material with the online version of this paper.
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  • 4
    Publication Date: 2019-01-21
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  • 5
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    Microbiology Society
    In:  International Journal of Systematic and Evolutionary Microbiology, 58 . pp. 34-39.
    Publication Date: 2017-05-29
    Description: A novel Gram-negative, motile, aerobic rod-shaped bacterium was isolated from a Bathymodiolus sp. specimen collected from the Logatchev hydrothermal vent field at the Mid-Atlantic Ridge. The novel strain, M41(T), was catalase- and oxidase-positive and metabolised various carbohydrates and amino acids. It grew well in marine broth with an optimal growth temperature of 31 degrees C to 34 degrees C (range 4-40 degrees C and salinity requirement of 3% (range 0.3-9%). The pH range for growth was pH 4.6 to 9.5, with an optimum at pH 8.0. The predominant fatty acids were C-16: (1)omega 7c, C-16: 0 and C-18: 1 omega 7c. The DNA G + C content of strain M41(T) was 52.2 mol%. The 16S rRNA gene sequence was 94 % similar to that of the type strain of Oceanospirillum beijerinckii, the closest cultivated relative. Other related type strains were Oceanospirillum multiglobuliferum (93% gene sequence similarity), Neptunomonas naphthovorans (92%) and Marinobacterium jannaschii (92 %). According to phylogenetic analysis and physiological characteristics, it is suggested that strain M41(T) represents a new genus and novel species for which the name Amphritea atlantica gen. nov., sp. nov. is proposed. The type strain is M41(T) (= DSM 18887(T) = LMG 24143(T)).
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  • 6
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    Microbiology Society
    In:  International Journal of Systematic and Evolutionary Microbiology, 58 . pp. 408-413.
    Publication Date: 2017-05-29
    Description: A novel actinonmycete strain, YIM 0006(T), was isolated from soil of a tropical rainforest in northern Thailand. The isolate displayed the following characteristics: aerial mycelium is absent, short spore chains are formed directly on the substrate mycelium, contains meso-diaminopimelic acid, arabinose and galactose (cell-wall chemotype IV), the diagnostic phospholipid is phosphaticlylcholine, MK-9(H-4) is the predominant menaquinone and the G + C content of the genomic DNA is 69.0 mol%. Phylogenetic analysis and phenotypic characteristics showed that strain YIM 0006(T) belongs to the family Pseudonocardiaceae but can be distinguished from representatives of all genera classified in the family. The novel genus and species Actinomycetospora chiangmaiensis gen. nov., sp. nov. are proposed, with strain YIM 0006(T) (=CCTCC AA 205017(T) =DSM 45062(T)) as the type strain of Actinomycetospora chiangmaiensis.
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  • 7
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    Microbiology Society
    In:  International Journal of Systematic and Evolutionary Microbiology, 59 (7). pp. 1679-1684.
    Publication Date: 2017-05-30
    Description: Two Gram-positive, aerobic actinomycete strains, designated YIM 48771(T) and YIM 48782(T), were isolated from virgin forest soil samples collected in Hunan Province, China. 16S rRNA gene sequence similarities of the two novel isolates ranged from 96.3 to 97.6% with species of the genus Sphaerisporangium with validly published names but, in the tree based on 16S rRNA gene sequences, the isolates formed distinct phyletic lines. The level of 16S rRNA gene sequence similarity between the two novel isolates was 97.1%. DNA-DNA hybridization of strains YIM 48771(T) and YIM 48782(T) with recognized species of the genus Sphaerisporangium revealed that the level of DNA-DNA relatedness was below 70%. The DNA G+C contents of strains YIM 48771(T) and YIM 48782(T) were 67.1 and 71 mol%, respectively. Chemotaxonomic data [major menaquinone, MK-9(H(4)); major polar lipids, diphosphatidylglycerol, phosphatidylinositol mannoside, phosphatidylethanolamine and phosphoglycolipids; major fatty acids, iso-C(16:0) and 10-methyl C(17:0)] supported the affiliation of the two isolates with the genus Sphaerisporangium. The results of DNA-DNA hybridization and physiological and biochemical tests allowed genotypic and phenotypic differentiation of the two isolates from recognized Sphaerisporangium species. Based on morphological, chemotaxonomical and phylogenetic data, strains YIM 48771(T) and YIM 48782(T) are considered to represent two novel species of the genus Sphaerisporangium, for which the names Sphaerisporangium flaviroseum sp. nov. (type strain, YIM 48771(T)=DSM 45170(T)=KCTC 19393(T)) and Sphaerisporangium album sp. nov. (type strain, YIM 48782(T)=DSM 45172(T)=CCTCC AA 208026(T)) are proposed.
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  • 8
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    Microbiology Society
    In:  International Journal of Systematic and Evolutionary Microbiology, 59 (9). pp. 2200-2203.
    Publication Date: 2017-05-30
    Description: A Gram-positive, milk-white coloured, aerobic strain, YIM 48868(T), was isolated from the rhizosphere soil of Maytenus hookeri Loes in Xishuangbanna, China. 16S rRNA gene sequence similarity studies showed that strain YIM 48868(T) was a member of the genus Actinopolymorpha, showing 96.8% sequence similarity to Actinopolymorpha singaporensis IM 7744(T) and 97.0% similarity to Actinopolymorpha rutila YIM 45725(T). Chemotaxonomic data (peptidoglycan type 1, LL-diaminopimelic acid; sugar pattern C, glucose, rhamnose and ribose; polar lipids PI, diphosphatidylglycerol, phosphaticlylglycerol, phosphatidylinositol mannosides and phosphatidylinositol) were characteristic of the genus Actinopolymorpha. A phylogenetic tree based on 16S rRNA gene sequences showed that strain YIM 48868(T) formed a distinct phylogenetic lineage within the genus Actinopolymorpha. Strain YIM 48868(T) could be differentiated from recognized species by means of phenotypic properties and the predominant menaquinones [MK-9(H(6)), MK-9(H(8)), MK-10(H(6)), MK-10(H(8))]. The DNA G+C content was 66.6 mol%. The DNA-DNA relatedness values between strain YIM 48868(T) and the type strains of A. singaporensis and A. rutila were 48.7% and 53.1%, respectively. These data, in combination with phenotypic and chemotaxonomic data, demonstrate that strain YIM 48868(T) represents a novel species in the genus Actinopolymorpha, for which the name Actinopolymorpha alba sp. nov. is proposed. The type strain is YIM 48868(T) (=CCTCC AA 208030(T) =DSM 45243(T)).
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  • 9
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    Microbiology Society
    In:  International Journal of Systematic and Evolutionary Microbiology, 59 (9). pp. 2333-2338.
    Publication Date: 2017-05-30
    Description: A spherical-shaped, phototrophic, purple sulfur bacterium was isolated in pure culture from anoxic sediment in a marine aquaculture pond near Bheemli (India). Strain JA142T is Gram-negative and non-motile. It has a requirement for NaCl (optimum of 2 % and maximum of 6 % w/v NaCl). Intracellular photosynthetic membranes are of the vesicular type. In vivo absorption spectra indicate the presence of bacteriochlorophyll a and carotenoids of the okenone series as photosynthetic pigments. Phylogenetic analysis on the basis of 16S rRNA gene sequences showed that strain JA142T is related to halophilic purple sulfur bacteria of the genera Thiohalocapsa and Halochromatium, with the highest sequence similarity to Thiohalocapsa halophila DSM 6210T (97.5 %). Morphological and physiological characteristics differentiate strain JA142T from other species of the genera Halochromatium and Thiohalocapsa. Strain JA142T is sufficiently different from Thiohalocapsa halophila based on 16S rRNA gene sequence analysis and morphological and physiological characteristics to allow the proposal of a novel species, Thiohalocapsa marina sp. nov., with the type strain JA142T (=JCM 14780T =DSM 19078T). The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain JA142T is AM491592. A phase-contrast micrograph of cells of strain JA142T, whole-cell and acetone absorption spectra and 16S rRNA gene sequence-based neighbour-joining, maximum-likelihood, minimum-evolution and maximum-parsimony trees are available as supplementary material with the online version of this paper.
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  • 10
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    Microbiology Society
    In:  International Journal of Systematic and Evolutionary Microbiology, 58 . pp. 542-547.
    Publication Date: 2017-05-30
    Description: A rod-shaped, translucent yellow-pigmented, Gram-negative bacterium, strain B390(T), was isolated from the bryozoan Schizobrachiella sanguinea collected in the Adriatic Sea, near Rovinj, Croatia. 16S rRNA gene sequence analysis indicated affiliation to the genus Tenacibaculum, with sequence similarity levels of 94.8-97.3 % to type strains of species with validly published names. It grew at 5-34 degrees C, with optimal growth at 18-26 degrees C, and only in the presence of NaCl or sea salts. In contrast to other type strains of the genus, strain B390(T) was able to hydrolyse aesculin. The predominant menaquinone was MK-6 and major fatty acids were iso-C-15:0, iso-C-15:0 3-OH and iSO-C-15:1. The DNA G + C content was 31.6 mol%. DNA-DNA hybridization and comparative physiological tests were performed with type strains Tenacibaculum aestuarii JCM 13491(T) and Tenacibaculum lutimaris DSM 16505 T, since they exhibit 16S rRNA gene sequence similarities above 97%. These data, as well as phylogenetic analyses, suggest that strain B390(T) (=DSM 18961(T) =JCM 14633(T)) should be classified as the type strain of a novel species within the genus Tenacibaculum, for which the name Tenacibaculum adriaticum sp. nov. is proposed.
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  • 11
    Publication Date: 2019-01-21
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  • 12
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    Microbiology Society
    In:  International Journal of Systematic and Evolutionary Microbiology, 59 . pp. 350-356.
    Publication Date: 2019-09-23
    Description: A novel alphaproteobacterium, strain LD81(T), was isolated from the marine macroalga. Laminaria saccharina. The bacterium is mesophilic and shows a typical marine growth response. It is a chemoheterotrophic aerobe with the potential for denitrification. Growth optima are 25 degrees C, pH 5.5 and 3% NaCl. Strain LD81(T) has a unique phylogenetic position, not fitting any of the known families of the Alphaproteobacteria. The 16S rRNA gene sequence revealed a distant relationship to species of several orders of the Alphaproteobacteria, with less than 90% sequence similarity. Phylogenetically, strain LD81(T) is related to the type strains of Terasakiella pusilla (88.4% 16S rRNA gene sequence similarity) and the three Thalassospira species (88.9-89.2%. It forms a cluster with these bacteria and a novel as-yet undescribed isolate (KOPRI 13522; 96.6% sequence similarity). Strain LD81(T) has a relatively low DNA G + C content (51.1 mol%) and, due to its distant phylogenetic position from all other alphaprotecibacteria, strain LD81(T) (=NCIMB 14374(T) =JCM 14845(T)) is considered as the type strain of a novel species within a new genus, for which the name Kiloniella laminariae gen. nov., sp. nov. is proposed. The genus Kiloniella represents the type of the new family Kiloniellaceae fam. nov. and order Kiloniellales ord. nov.
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  • 13
    Publication Date: 2019-09-23
    Description: During studies of moderately halophilic strains of Ectothiorhodospira from steppe soda lakes, we found a novel group of bacteria related to Ectothiorhodospira haloalkaliphila with salt optima at 50–80 g NaCl l”1. Phylogenetic analysis using 16S rRNA gene sequences of strains from soda lakes in Mongolia, Egypt and Siberia revealed separation of the group of new isolates from other Ectothiorhodospira species, including the closely related Ect. haloalkaliphila. DNA–DNA hybridization studies demonstrated that the new isolates form a homogeneous group at the species level, but at the same time are distinct from related species such as Ect. haloalkaliphila, Ect. vacuolata, Ect. shaposhnikovii and Ect. marina. The new isolates are considered to be strains of a novel species, for which the name Ectothiorhodospira variabilis sp. nov. is proposed, with the type strain WN22T (5VKM B-2479T 5DSM 21381T). Photosynthetic pigments of the novel species are bacteriochlorophyll a and carotenoids of the spirilloxanthin series with spirilloxanthin and derivatives thereof, together with small amounts of lycopene and rhodopin. Gas vesicles are formed by most of the strains, particularly in media containing yeast extract (0.5 g l”1) and acetate (0.5–2.0 g l”1). Sequence analysis of nifH (nitrogenase) and cbbL (RuBisCO) confirmed the assignment of the strains to the genus Ectothiorhodospira and in particular the close relationship to Ect. haloalkaliphila. The novel species Ect. variabilis is found in soda lakes separated by great geographical distances and is an alkaliphilic and halophilic bacterium that tolerates salt concentrations up to 150–200 g NaCl l”1.
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  • 14
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    Microbiology Society
    In:  International Journal of Systematic and Evolutionary Microbiology, 59 . pp. 1599-1602.
    Publication Date: 2019-09-23
    Description: A Gram-positive, non-spore-forming actinomycete, designated strain CC 0387(T), was isolated from a sediment sample from the Baltic Sea, Germany. Classification using a polyphasic approach and comparative 16S rRNA gene sequencing showed that strain CC 0387(T) belonged to the genus Promicromonospora and displayed more than 3% 16S rRNA gene sequence divergence from all Promicromonospora species with validly published names. Strain CC 0387(T) did not produce aerial mycelium. Substrate mycelia were yellowish white to pale orange-yellow and fragmented into bacillary or coccoid elements. The cell wall contained lysine and alanine. Whole-cell hydrolysates contained galactose, glucose, rhamnose and ribose. The polar lipid profile consisted of diphosphatidylglycerol, phosphatidylglycerol, an unknown phospholipid and an unknown glycolipid. The predominant menaquinone was MK-9(H-4) (86%). The G+C content of the DNA was 71.87 mol%. Based on morphological, chemotaxonomic, phenotypic and genetic characteristics, strain CC 0387(T) (=CCTCC AA208024(T)=DSM 21481(T)) represents a novel species, for which the name Promicromonospora flava sp. nov. is proposed.
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  • 15
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    Microbiology Society
    In:  International Journal of Systematic and Evolutionary Microbiology, 58 . pp. 1324-1331.
    Publication Date: 2017-05-29
    Description: A novel actinomycete, designated strain YIM 46034(T), was isolated from an evergreen broadleaved forest at Menghai, in southern Yunnan Province, China. Phenotypic characterization and 16S rRNA gene sequence analysis indicated that the strain belonged to the family Micromanosporaceae. Strain YIM 46034(T) showed more than 3% 16S rRNA gene sequence divergence from recognized species of genera in the family Micromonosporaceae. Characteristic features of strain YIM 46034(T) were the production of two types of spores, namely motile spores, which were formed in sporangia produced on substrate mycelia, and single globose spores, which were observed on short sporophores of the substrate mycelia. The cell wall contained meso-diaminopimelic acid, glycine, arabinose and xylose, which are characteristic components of cell-wall chemotype 11 of actinomycetes. Phosphatidylethanolamine was the major phospholipid (phospholipid type 11). Based on morphological, chemotaxonomic, phenotypic and genetic characteristics, strain YIM 46034(T) is considered to represent a novel species of a new genus in the family Micromonosporaceae, for which the name Planosporangium flavigriseum gen. nov., sp. nov. is proposed. The type strain of Planosporangium flavigriseum is YIM 46034(T) (=CCTCC AA 205013(T) =DSM 44991(T)).
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