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  • Microbiology Society  (4)
  • Biodiversity Research  (4)
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  • Microbiology Society  (4)
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  • 1
    Online Resource
    Online Resource
    Thermus brevis sp. nov., a moderately thermophilic bacterium isolated from a hot spring microbial mat
    Microbiology Society ; 2022
    In:  International Journal of Systematic and Evolutionary Microbiology Vol. 72, No. 2 ( 2022-02-24)
    Details
    In: International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, Vol. 72, No. 2 ( 2022-02-24)
    Abstract: Three closely related, facultative anaerobic, Gram-stain-negative, twitching motile, short rod-shaped, non-endospore-forming, moderately thermophilic bacteria, designated strains SYSU G05001 T , SYSU G05003 and SYSU G05004, were isolated from a hot spring microbial mat, collected from Rehai National Park, Tengchong, Yunnan Province, south-western China. The results of phylogenetic analysis based on the 16S rRNA gene sequences indicated that these three strains were closely related to Thermus scotoductus SE-1 T (97.97, 98.18, 97.90 % sequence similarity). Whole genome sequencing and polyphasic taxonomic approach were used to determine the genomic profile and taxonomic status of the novel strain SYSU G05001 T . Cell growth occurred at 37–80 °C (optimum, 55 °C), pH 6.0–8.0 (optimum, pH 7.0) and with 0–3.0 % (w/v) NaCl (optimum, 1%). Thiosulfate enhanced cell growth. MK-8 was the predominant menaquinone. The major cellular fatty acids included iso-C 15 : 0 , iso-C 17 : 0 and anteiso-C 15 : 0 . The major polar lipids were consisted of aminophospholipid, glycolipid and phospholipids. The whole genome of strain SYSU G05001 T consisted of 2.55 Mbp and the DNA G+C content was 64.94 mol%. The average nucleotide identity (≤94.95 %) and digital DNA–DNA hybridization (≤62.3 %) values between strain SYSU G05001 T and other members of the genus Thermus were all lower than the threshold values recommended for distinguishing novel prokaryotic species. On the basis of the presented polyphasic evidence and genotypic data, it is proposed that strain SYSU G05001 T (=KCTC 82627 T =MCCC 1K06118 T ) represents a novel species of the genus Thermus , for which the name Thermus brevis sp. nov. is proposed.
    Type of Medium: Online Resource
    ISSN: 1466-5026 , 1466-5034
    URL: Article
    DOI: 10.1099/ijsem.0.005265
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2022
    detail.hit.zdb_id: 215062-1
    detail.hit.zdb_id: 2056611-6
    SSG: 12
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    Online Resource
  • 2
    Online Resource
    Online Resource
    Taibaiella chishuiensis sp. nov., isolated from freshwater
    Microbiology Society ; 2014
    In:  International Journal of Systematic and Evolutionary Microbiology Vol. 64, No. Pt_5 ( 2014-05-01), p. 1795-1801
    Details
    In: International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, Vol. 64, No. Pt_5 ( 2014-05-01), p. 1795-1801
    Abstract: A Gram-reaction-negative, strictly aerobic, non-motile and rod-shaped bacterial strain, AY17 T , was isolated from the Chishui River in Guizhou Province, South-west China. Strain AY17 T grew optimally at pH 7.0 and 20 °C. Flexirubin-type pigments were produced. 16S rRNA gene sequence analysis indicated that strain AY17 T belonged to the family Chitinophagaceae within the phylum Bacteroidetes ; the closest phylogenetic relative was Taibaiella smilacinae PTJT-5 T (95.3 % gene sequence similarity). The DNA G+C content was 49.5 mol%. Strain AY17 T contained MK-7 as the predominant respiratory quinone and phosphatidylethanolamine as the major polar lipid. The major fatty acids were iso-C 15 : 0 , iso-C 15 : 1 G and iso-C 17 : 0 3-OH. On the basis of phylogenetic, phenotypic and genetic data, strain AY17 T was classified as representing a novel species of the genus Taibaiella , for which the name Taibaiella chishuiensis sp. nov. is proposed. The type strain is AY17 T ( = CGMCC 1.12700 T  = JCM 19637 T ).
    Type of Medium: Online Resource
    ISSN: 1466-5026 , 1466-5034
    URL: Article
    DOI: 10.1099/ijs.0.060269-0
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2014
    detail.hit.zdb_id: 215062-1
    detail.hit.zdb_id: 2056611-6
    SSG: 12
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  • 3
    Online Resource
    Online Resource
    Description of Chishuiella changwenlii gen. nov., sp. nov., isolated from freshwater, and transfer of Wautersiella falsenii to the genus Empedobacter as Empedobacter falsenii comb. nov.
    Microbiology Society ; 2014
    In:  International Journal of Systematic and Evolutionary Microbiology Vol. 64, No. Pt_8 ( 2014-08-01), p. 2723-2728
    Details
    In: International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, Vol. 64, No. Pt_8 ( 2014-08-01), p. 2723-2728
    Abstract: A Gram-reaction-negative, strictly aerobic, non-pigmented, non-gliding, rod-shaped bacterium, designated strain BY4 T , was isolated from freshwater. Cells were catalase- and oxidase-positive and indole was produced. Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain BY4 T belonged to the family Flavobacteriaceae and showed 91.6–95.9 % sequence similarities to the most closely related strains. The major respiratory quinone was MK-6 and the major polar lipid was phosphatidylethanolamine. The major polyamine was homospermidine and the major fatty acids were iso-C 15 : 0 , iso-C 17 : 0 3-OH and summed feature 3 (C 16 : 1 ω7 c and/or C 16 : 1 ω6 c ). The DNA G+C content was 30.0 mol%. On the basis of phenotypic, phylogenetic and genotypic features, strain BY4 T is suggested to represent a novel species in a new genus within the family Flavobacteriaceae , for which the name Chishuiella changwenlii gen. nov., sp. nov. is proposed. The type strain of this type species is BY4 T ( = CGMCC 1.12707 T  = JCM 19633 T ). On the basis of data collected from previous and present studies, it is proposed to reclassify Wautersiella falsenii to the genus Empedobacter as the new combination Empedobacter falsenii comb. nov. (type strain NF 993 T  = CCUG 51536 T  = CIP 108861 T ).
    Type of Medium: Online Resource
    ISSN: 1466-5026 , 1466-5034
    URL: Article
    DOI: 10.1099/ijs.0.063115-0
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2014
    detail.hit.zdb_id: 215062-1
    detail.hit.zdb_id: 2056611-6
    SSG: 12
    Location Call Number Limitation Availability
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    Online Resource
  • 4
    Online Resource
    Online Resource
    In vivo and in vitro studies on the antiviral activities of viperin against influenza H1N1 virus infection
    Microbiology Society ; 2012
    In:  Journal of General Virology Vol. 93, No. 6 ( 2012-06-01), p. 1269-1277
    Details
    In: Journal of General Virology, Microbiology Society, Vol. 93, No. 6 ( 2012-06-01), p. 1269-1277
    Abstract: Influenza A virus has caused a number of pandemics in past decades, including the recent H1N1-2009 pandemic. Viperin is an interferon (IFN)-inducible protein of innate immunity, and acts as a broad-spectrum antiviral protein. We explored the antiviral activities and mechanisms of viperin during influenza virus (IFV) infection in vitro and in vivo . Wild-type (WT) HeLa and viperin-expressing HeLa cells were infected with influenza A/WSN/33/H1N1 (WSN33) virus, and subjected to virological, light and electron microscopic analyses. Viperin expression reduced virus replication and titres, and restricted viral budding. Young and old viperin-knockout (KO) mice and WT control animals were challenged with influenza WSN33 at lethal doses of 10 3 and 10 4 p.f.u. via the intratracheal route. Lungs were subjected to histopathological, virological and molecular studies. Upon lethal IFV challenge, both WT and KO mice revealed similar trends of infection and recovery with similar mortality rates. Viral quantification assay and histopathological evaluation of lungs from different time points showed no significant difference in viral loads and lung damage scores between the two groups of mice. Although the in vitro studies demonstrated the ability of viperin to restrict influenza H1N1 virus replication, the viperin-deficient mouse model indicated that absence of viperin enhanced neither the viral load nor pulmonary damage in the lungs of infected mice. This may be due to the compensation of IFN-stimulated genes in the lungs and/or the influenza non-structural protein 1-mediated IFN antagonism dampening the IFN response, thereby rendering the loss of viperin insignificant. Nevertheless, further investigations that exploit the antiviral mechanisms of viperin as prophylaxis are still warranted.
    Type of Medium: Online Resource
    ISSN: 0022-1317 , 1465-2099
    URL: Article
    DOI: 10.1099/vir.0.040824-0
    RVK:
    XA 53770
    RVK:
    WA 15000
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2012
    detail.hit.zdb_id: 2007065-2
    SSG: 12
    Location Call Number Limitation Availability
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