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  • 1
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    Microbiology Society
    In:  International Journal of Systematic and Evolutionary Microbiology, 68 (1). pp. 333-340.
    Publication Date: 2021-02-08
    Description: A new member of the Flavobacteriales was isolated from the surface of a stone collected on the German North Sea shore. The bacterium, strain ANORD5T, is a mesophilic, chemoheterotrophic aerobic, typical marine bacterium. Optimal growth was observed at 20–30 °C, pH 7.0–8.5 and 1–2 % sea salt. The 16S rRNA gene sequence revealed a distant relationship with the representatives of the Cryomorphaceae , with less than 90 % sequence similarity. Strain ANORD5T forms a cluster together with Owenweeksia hongkongensis UST20020801T (89.9 %), Cryomorpha ignava 1-22T (87.9 %), Luteibaculum oceani CC-AMWY-103BT (88.1 %) and Phaeocystidibacter luteus PG2S01T (87.3 %). Strain ANORD5T has a low DNA G+C content (31 mol%). Based on morphological, physiological and phylogenetic data, strain ANORD5T is considered a type strain of a new species and a new genus of the family Cryomorphaceae for which the name Vicingus serpentipes is proposed. The type strain is ANORD5T (=NCIMB 15042T=DSM 103558T=MTCC 12686T).
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  • 2
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    Microbiology Society
    In:  International Journal of Systematic and Evolutionary Microbiology, 57 . pp. 1169-1171.
    Publication Date: 2017-05-24
    Type: Article , NonPeerReviewed
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  • 3
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    Microbiology Society
    In:  International Journal of Systematic and Evolutionary Microbiology, 51 . pp. 1863-1866.
    Publication Date: 2017-05-24
    Description: Rhodopseudomonas acidophila has unique properties among the phototrophic alpha-Proteobacteria and is quite distinct from the type species of Rhodopseudomonas, Rhodopseudomonas palustris. Therefore, the transfer of Rhodopseudomonas acidophila to Rhodoblastus acidophilus gen. nov., comb. nov., is proposed. This proposal is in accordance with other taxonomic reclassifications proposed previously and fully reflects the phylogenetic distance from Rhodopseudomonas palustris
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  • 4
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    American Society for Microbiology
    In:  Journal of Bacteriology, 160 (1). pp. 278-479.
    Publication Date: 2016-01-22
    Description: A number of moderately halophilic bacteria of diverse taxonomic groups have been studied to determine the intracellular concentrations of organic compounds at various salt concentrations. Betaine was accumulated in all of these organisms in proportion to the salinity of the medium, suggesting that this compound plays a major role in osmoregulation.
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  • 5
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    Microbiology Society
    In:  International Journal of Systematic and Evolutionary Microbiology, 61 (7). pp. 1601-1605. Date online first: 2010
    Publication Date: 2017-05-30
    Description: Salt and alkaline-tolerant actinomycete strain, YIM 90018T, was isolated from a saline and alkaline soil sample collected from Qinghai, China, and was then subjected to polyphasic taxonomy. Aerial hyphae of strain YIM 90018T were not produced on almost tested media except YIM 82# agar. Vegetative hyphae were abundant, developed well, and not fragmented. Straight or flexuous (Rectiflexibiles) spore chains. The strain grew well at 25% of MgCl2.6H2O and pH 10. All of these characters consistently assign the strain YIM 90018T to known species of the genus Streptomyces. Based on phylogenetic analysis of 16S rDNA, DNA-DNA hybridization, phenotypic characters and comparison with known species of the genus, strain YIM 90018T can be differentiated from all the validly described Streptomyces species. A novel species, Streptomyces sparsus sp. nov. is proposed. The type strain of the new species is YIM 90018T (CCTCC AA204019= DSM 41858T).
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  • 6
    Publication Date: 2019-09-23
    Description: Bacillus subtilis is an aerobic spore-forming Gram-positive bacterium that is a model organism and of great industrial significance as the source of diverse novel functional molecules. Here we present, to our knowledge, the first genome sequence of Bacillus subtilis strain gtP20b isolated from the marine environment. A subset of candidate genes and gene clusters were identified, which are potentially involved in production of diverse functional molecules, like novel ribosomal and nonribosomal antimicrobial peptides. The genome sequence described in this paper is due to its high strain specificity of great importance for basic as well as applied researches on marine organisms
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  • 7
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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.
    Type: Article , PeerReviewed
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  • 8
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    Microbiology Society
    In:  International Journal of Systematic and Evolutionary Microbiology, 50 . pp. 2157-2163.
    Publication Date: 2017-05-24
    Description: Four strains of purple sulfur bacteria containing bacteriochlorophyll b were isolated from cyanobacterial mats of soda lakes in the steppe of south-east Siberia, Russia. Cells of all strains were cocci without gas vesicles. Eventually, cells with flagella were seen in the electron microscope, but motile cells were observed very rarely in cultures. Internal photosynthetic membranes were of the tubular type. Photosynthetic pigments were bacteriochlorophyll b and carotenoids with spectral characteristics similar to 3,4,3',4'-tetrahydrospirilloxanthin. The bacteria were obligately phototrophic and strictly anaerobic. Hydrogen sulfide and elemental sulfur were used as photosynthetic electron donors. Thiosulfate was not used. During growth on sulfide, sulfur globules were formed as intermediate oxidation products, deposited inside the cells and centrally located. In the presence of sulfide and sodium bicarbonate, acetate, malate, propionate, pyruvate, succinate, fumarate and yeast extract were photoassimilated. Growth factors were not required. The new bacterium is an obligate alkaliphile growing at pH 8-10 with an optimum at pH 9. It showed good growth up to 6.0% sodium chloride and up to 8.5% sodium carbonates. Phenotypically, it is similar to Thiococcus pfennigii, but different by virtue of its alkaliphily and salt tolerance. The DNA G+C content was 63.6-64.8 mol %, compared to 69.4-69.9 mol % for Thiococcus pfennigii. The 16S rDNA sequence of strain A26T was approximately 92% similar to that of Thiococcus pfennigii DSM 226 and therefore a new genus and species name, Thioalkalicoccus limnaeus gen. nov. and sp. nov., are proposed for the new bacterium
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  • 9
    Publication Date: 2017-05-24
    Description: A brown-coloured bacterium was isolated from photoheterotrophic (benzoate) enrichments of flooded paddy soil from Andhra Pradesh, India. On the basis of 16S rRNA gene sequence analysis, strain JA2(T) was shown to belong to the class Betaproteobacteria, related to Rubrivivax gelatinosus (99 % sequence similarity). Cells of strain JA2(T) are Gram-negative, motile rods with monopolar single flagella. The strain contained bacteriochlorophyll a and most probably the carotenoids spirilloxanthin and sphaeroidene, but did not have internal membrane structures. Intact cells had absorption maxima at 378, 488, 520, 590, 802 and 884 nm. No growth factors were required. Strain JA2(T) grew on benzoate, 2-aminobenzoate (anthranilate), 4-aminobenzoate, 4-hydroxybenzoate, phthalate, phenylalanine, trans-cinnamate, benzamide, salicylate, cyclohexanone, cyclohexanol and cyclohexane-2-carboxylate as carbon sources and/or electron donors. The DNA G+C content was 74.9 mol%. Based on DNA-DNA hybridization studies, 16S rRNA gene sequence analysis and morphological and physiological characteristics, strain JA2(T) is different from representatives of other photosynthetic species of the Betaproteobacteria and was recognised as representing a novel species, for which the name Rubrivivax benzoatilyticus sp. nov. is proposed. The type strain is JA2(T) (=ATCC BAA-35(T)=JCM 13220(T)=MTCC 7087(T)).
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  • 10
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    Microbiology Society
    In:  International Journal of Systematic and Evolutionary Microbiology, 51 . pp. 105-110.
    Publication Date: 2017-05-24
    Description: A novel phototrophic purple sulfur bacterium was isolated from a flat, laminated microbial mat in a salt marsh near Woods Hole, Massachusetts, USA. The cells were monotrichously flagellated motile cocci with internal photosynthetic membranes of the tubular type. The main photosynthetic pigments were bacteriochlorophyll b and the carotenoid 3,4,3',4'-tetrahydrospirilloxanthin. The marine bacterium showed optimal growth in the presence of 2% salts. It was obligately phototrophic and strictly anaerobic. It grew photoautotrophically and photoassimilated acetate, pyruvate and ascorbate as the only organic substrates. In the presence of sulfide, elemental sulfur globules were formed inside the cells. Elemental sulfur was further oxidized to sulfate. The DNA base composition of the new bacterium was 66.5 mol% G+C. The 16S rDNA nucleotide sequence was most similar to strains of Thiococcus pfennigii, there being approximately 92-93% sequence similarity. The new bacterium is described as a new species and a new genus, and the name Thioflavicoccus mobilis is proposed; the type strain is 8321T (= ATCC 700959T).
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