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  • Microbiology Society  (13)
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  • 1
    Online Resource
    Online Resource
    Microbiology Society ; 2019
    In:  International Journal of Systematic and Evolutionary Microbiology Vol. 69, No. 7 ( 2019-07-01), p. 2089-2094
    In: International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, Vol. 69, No. 7 ( 2019-07-01), p. 2089-2094
    Type of Medium: Online Resource
    ISSN: 1466-5026 , 1466-5034
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2019
    detail.hit.zdb_id: 215062-1
    detail.hit.zdb_id: 2056611-6
    SSG: 12
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  • 2
    Online Resource
    Online Resource
    Microbiology Society ; 2020
    In:  International Journal of Systematic and Evolutionary Microbiology Vol. 70, No. 1 ( 2020-01-01), p. 105-111
    In: International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, Vol. 70, No. 1 ( 2020-01-01), p. 105-111
    Type of Medium: Online Resource
    ISSN: 1466-5026 , 1466-5034
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2020
    detail.hit.zdb_id: 215062-1
    detail.hit.zdb_id: 2056611-6
    SSG: 12
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  • 3
    Online Resource
    Online Resource
    Microbiology Society ; 2020
    In:  International Journal of Systematic and Evolutionary Microbiology Vol. 70, No. 3 ( 2020-03-01), p. 2096-2102
    In: International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, Vol. 70, No. 3 ( 2020-03-01), p. 2096-2102
    Abstract: A Gram-stain-negative, facultatively anaerobic, flagellated and rod-shaped bacterium, designated strain SM1901 T , was isolated from a brown algal sample collected from Kings Bay, Svalbard, Arctic. Strain SM1901 T grew at −4‒30 °C and with 0–7.0 % (w/v) NaCl. It reduced nitrate to nitrite and hydrolysed DNA and Tween 80. Results of phylogenetic analyses based on 16S rRNA gene sequences indicated that strain SM1901 T was affiliated with the genus Shewanella , showing the highest sequence similarity to the type strain of Shewanella litoralis (97.5%), followed by those of Shewanella vesiculosa , Shewanella livingstonensis and Shewanella saliphila (97.3 % for all three). The major cellular fatty acids were summed feature 3 (C 16 : 1 ω 7 с and/or C 16 : 1 ω 6 с ), C 16 : 0 , C 18 : 0 , iso-C 15 : 0 and C 17 : 1 ω 8 с and the major polar lipids were phosphatidylethanolamine and phosphatidylglycerol. The respiratory quinones were ubiquinones Q-7, Q-8, menaquinones MK-7(H) and MK-8. The genome of strain SM1901 T was 4648537 nucleotides long and encoded a variety of cold adaptation related genes, providing clues for better understanding the ecological adaptation mechanisms of polar bacteria. The genomic DNA G+C content of strain SM1901 T was 40.5 mol%. Based on the polyphasic evidence presented in this paper, strain SM1901 T was considered to represent a novel species, constituting a novel psychrotolerant lineage out of the known SF clade encompassed by polar Shewanella species, within the genus Shewanella , for which the name Shewanella polaris sp. nov. is proposed. The type strain is SM1901 T (=KCTC 72047 T =MCCC 1K03585 T ).
    Type of Medium: Online Resource
    ISSN: 1466-5026 , 1466-5034
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2020
    detail.hit.zdb_id: 215062-1
    detail.hit.zdb_id: 2056611-6
    SSG: 12
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  • 4
    Online Resource
    Online Resource
    Microbiology Society ; 2023
    In:  International Journal of Systematic and Evolutionary Microbiology Vol. 73, No. 5 ( 2023-05-26)
    In: International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, Vol. 73, No. 5 ( 2023-05-26)
    Abstract: A taxonomic identification using polyphasic approach was performed on strain TH16-21 T , which was isolated from the interfacial sediment of Taihu Lake, PR China. Strain TH16-21 T was Gram-stain-negative, aerobic, rod-shaped and catalase-positive. Phylogenetic analysis based on the 16S rRNA gene and genomic sequences indicated that strain TH16-21 T was classified within the genus of Flavobacterium . The 16S rRNA gene sequence of strain TH16-21 T showed the highest similarity to Flavobacterium cheniae NJ-26 T (98.9 %). The average nucleotide identity and digital DNA–DNA hybridization values between strain TH16-21 T and F. cheniae NJ-26 T were 91.2 and 45.9 %, respectively. The respiratory quinone was menaquinone 6. The major cellular fatty acids ( 〉 10 %) comprised iso-C 15 : 0 , iso-C 16 : 0 , iso-C 15 : 1 G and iso-C 16 : 0 3-OH. The genomic DNA G+C content was 32.2 mol%. Phosphatidylethanolamine, six amino lipids and three phospholipids were the main polar lipids. Based on the phenotypic features and phylogenetic position, a novel species with the name Flavobacterium lacisediminis sp. nov. is proposed. The type strain is TH16-21 T (=MCCC 1K04592 T =KACC 22896 T ).
    Type of Medium: Online Resource
    ISSN: 1466-5026 , 1466-5034
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2023
    detail.hit.zdb_id: 215062-1
    detail.hit.zdb_id: 2056611-6
    SSG: 12
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  • 5
    Online Resource
    Online Resource
    Microbiology Society ; 2021
    In:  International Journal of Systematic and Evolutionary Microbiology Vol. 71, No. 7 ( 2021-07-07)
    In: International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, Vol. 71, No. 7 ( 2021-07-07)
    Abstract: A novel Gram-stain-positive, facultatively aerobic, slightly halophilic, endospore-forming bacterium, designated G6-18 T , was isolated from saline soil collected in Yingkou, Liaoning, PR China. Cells of strain G6-18 T grew at 10–37 °C (optimum, 30 °C), at pH 6.0–9.0 (optimum, pH 8.0) and in the presence of 2–15 % (w/v) NaCl (optimum, 5 %). The strain could be clearly distinguished from the related species of the genus Paraliobacillus by its phylogenetic position and biochemical characteristics. It presented MK-7 as the major quinone and the dominant cellular fatty acids were iso-C 16 : 0 , anteiso-C 15 : 0 , C 16 : 0 and iso-C 14 : 0 . The polar lipids consisted of diphosphatidylglycerol and phosphatidylglycerol as the major components. The G+C content of strain G6-18 T genome was 35.3 mol%. 16S rRNA analysis showed that strain G6-18 T had the highest similarity to Paraliobacillus ryukyuensis DSM 15140 T , reaching 97.0 %, followed by Paraliobacillus quinghaiensis CGMCC 1.6333 T with a value of 96.3 %. The average nucleotide identity values between strain G6-18 T and Paraliobacillus ryukyuensis DSM 15140 T , Paraliobacillus sedimins KCTC 33762 T , Paraliobacillus quinghaiensis CGMCC 1.6333 T and Paraliobacillus zengyii DSM 107811 T were 74.3, 72.0, 73.2 and 72.8 %, respectively, and the digital DNA–DNA hybridization values between strain G6-18 T and the neighbouring strains were 15.6, 13.8, 14.2 and 14.2 %, respectively. Based on phenotypic, chemotaxonomic and phylogenetic inferences, strain G6-18 T represents a novel species of the genus Paraliobacillus , for which the name Paraliobacillus salinarum sp. nov. (=CGMCC 1.12058 T =DSM 25428 T ) is proposed.
    Type of Medium: Online Resource
    ISSN: 1466-5026 , 1466-5034
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2021
    detail.hit.zdb_id: 215062-1
    detail.hit.zdb_id: 2056611-6
    SSG: 12
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  • 6
    In: Journal of General Virology, Microbiology Society, Vol. 89, No. 5 ( 2008-05-01), p. 1212-1219
    Abstract: Bombyx mori nucleopolyhedrovirus ORF56 ( Bm56 ) is a baculovirus core gene that is highly conserved in all baculoviruses that have had their genomes sequenced to date. Its transcripts in BmNPV-infected cells could be detected from 12 h post-infection (p.i.) and the encoded protein could be detected at 16 h p.i. by using a polyclonal antibody against glutathione S -transferase–Bm56 fusion protein. Western blot analysis showed that Bm56 is a structural component of the occlusion-derived virus nucleocapsid. Subsequent confocal microscopy revealed that Bm56 was distributed in the outer nuclear membrane and the intranuclear region of infected cells. To investigate the role of Bm56 in virus replication, a Bm56 -knockout bacmid of BmNPV was constructed via homologous recombination in Escherichia coli . The Bm56 deletion had no effect on budded virus (BV) production in cultured cells; however, the deletion affected occlusion-body morphogenesis. A larval bioassay demonstrated that the Bm56 deletion did not reduce infectivity, whereas it resulted in a 50 % lethal time that was 16–18 h longer than that of the wild-type bacmid at every dose used in this study. These results indicate that Bm56 facilitates efficient virus production in vivo ; however, it is not essential for BV production in vitro .
    Type of Medium: Online Resource
    ISSN: 0022-1317 , 1465-2099
    RVK:
    RVK:
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2008
    detail.hit.zdb_id: 2007065-2
    SSG: 12
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  • 7
    In: Journal of General Virology, Microbiology Society, Vol. 93, No. 9 ( 2012-09-01), p. 1959-1964
    Abstract: Japanese encephalitis (JE) remains the leading cause of viral encephalitis in the Asia-Pacific region, and the live vaccine SA14-14-2 is currently recommended by WHO and widely used in Asian countries with a good safety and efficacy profile. In this study, we demonstrated that SA14-14-2 failed to produce NS1’, the larger NS1-related protein, compared with its parental strain SA14 in various cells. Sequence analysis and secondary structure prediction identified a single silent mutation G66A in the NS2A-coding region of SA14-14-2 destabilized the conserved pseudoknot structure, which was associated with a −1 ribosomal frame shift event. Using reverse genetic technology and animal study, we provided solid evidence that this single silent mutation G66A in the NS2A gene abolished the production of NS1’ in vitro and reduced neurovirulence and neuroinvasiveness in mice. These findings provide critical information in understanding the molecular mechanism of JE vaccine attenuation and is critical for JE vaccine quality control.
    Type of Medium: Online Resource
    ISSN: 0022-1317 , 1465-2099
    RVK:
    RVK:
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2012
    detail.hit.zdb_id: 2007065-2
    SSG: 12
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  • 8
    Online Resource
    Online Resource
    Microbiology Society ; 2021
    In:  International Journal of Systematic and Evolutionary Microbiology Vol. 71, No. 1 ( 2021-01-01)
    In: International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, Vol. 71, No. 1 ( 2021-01-01)
    Abstract: A Gram-negative, aerobic, rod-shaped, non-motile bacterium, designated strain HQ09 T , was isolated from a marine sponge off the coast of Fields Peninsula, West Antarctica. Strain HQ09 T grew at 4–35 °C (optimum, 25 °C), pH 5–9 (optimum, pH 7.0), and with 1–10% NaCl (optimum, 2 %). Phylogenetic analysis based on the 16S rRNA gene sequences showed that strain HQ09 T was affiliated with the genus Pseudopuniceibacterium in the family Rhodobacteraceae , sharing 99.64 % identity with the type strain of Pseudopuniceibacterium sediminis , the only known species in the genus. However, the low digital DNA–DNA hybridization (dDDH) (27.2 %) and average nucleotide identity (ANI) (83.63 %) values between strain HQ09 T and the type strain of Pseudopuniceibacterium sediminis indicated that they did not belong to the same species. Strain HQ09 T could also be differentiated from Pseudopuniceibacterium sediminis by many phenotypic characteristics. The major fatty acids ( 〉 5 %) of strain HQ09 T were summed feature 8 (C 18 : 1  ω7c/ C 18 : 1  ω6c), 11-methyl C 18 : 1  ω7 c, C 16 : 0 and C19 : 0 cyclo ω 8 c . The polar lipids included phosphatidylglycerol, phosphatidylcholine, two unidentified aminolipids and one unidentified phospholipid. The predominant respiratory quinone was ubiquinone 10 (Q-10). The genomic DNA G+C content was 62.63 mol%. Four secondary metabolite biosynthetic gene clusters were detected in the genome, potentially producing ectoine and three types of unknown compounds. On the basis of the polyphasic evidences obtained in this study, strain HQ09 T represents a novel species of the genus Pseudopuniceibacterium , for which the name Pseudopuniceibacterium antarcticum sp. nov. is proposed, with the type strain being HQ09 T (=KCTC 52229 T =CGMCC 1.15538 T ).
    Type of Medium: Online Resource
    ISSN: 1466-5026 , 1466-5034
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2021
    detail.hit.zdb_id: 215062-1
    detail.hit.zdb_id: 2056611-6
    SSG: 12
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  • 9
    In: Journal of General Virology, Microbiology Society, Vol. 94, No. 9 ( 2013-09-01), p. 2005-2016
    Abstract: Human noroviruses (NoVs), a major cause of viral gastroenteritis, are difficult to study due to the lack of a cell-culture and a small-animal model. Pigs share with humans the types A and H histo-blood group antigens on the intestinal epithelium and have been suggested as a potential model for studies of NoV pathogenesis, immunity and vaccines. In this study, the effects of age and a cholesterol-lowering drug, simvastatin, on the susceptibility of pigs to NoV infection were evaluated. The median infectious dose (ID 50 ) of a genogroup II, genotype 4 (GII.4) 2006b variant was determined. The ID 50 in neonatal (4–5 days of age) pigs was ≤2.74×10 3 viral RNA copies. In older pigs (33–34 days of age), the ID 50 was 6.43×10 4 but decreased to 〈 2.74×10 3 in simvastatin-fed older pigs. Evidence of NoV infection was obtained by increased virus load in the intestinal contents, cytopathological changes in the small intestine, including irregular microvilli, necrosis and apoptosis, and detection of viral antigen in the tip of villi in duodenum. This GII.4 variant was isolated in 2008 from a patient from whom a large volume of stool was collected. GII.4 NoVs are continuously subjected to selective pressure by human immunity, and antigenically different GII.4 NoV variants emerge every 1–2 years. The determination of the ID 50 of this challenge virus is valuable for evaluation of protection against different GII.4 variants conferred by NoV vaccines in concurrence with other GII.4 variants in the gnotobiotic pig model.
    Type of Medium: Online Resource
    ISSN: 0022-1317 , 1465-2099
    RVK:
    RVK:
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2013
    detail.hit.zdb_id: 2007065-2
    SSG: 12
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  • 10
    In: Journal of General Virology, Microbiology Society, Vol. 100, No. 11 ( 2019-11-01), p. 1530-1540
    Type of Medium: Online Resource
    ISSN: 0022-1317 , 1465-2099
    RVK:
    RVK:
    Language: English
    Publisher: Microbiology Society
    Publication Date: 2019
    detail.hit.zdb_id: 2007065-2
    SSG: 12
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