2015
DOI: 10.1099/ijsem.0.000606
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Hypnocyclicus thermotrophus gen. nov., sp. nov. isolated from a microbial mat in a hydrothermal vent field

Abstract: The bacterial strain, IR-2T, was isolated from a microbial mat sampled near a hydrothermal vent in the Greenland Sea. Phylogenetic analysis, based on the 16S rRNA gene, showed that the closest relatives of IR-2T were Ilyobacter tartaricus, Ilyobacter insuetus, Propionigenium modestum and Fusobacterium varium (91 % 16S rRNA gene sequence similarity). The cells of the novel strain were Gram-stain-negative and pleomorphic; changing from long motile rods to non-motile ring structures during the growth cycle. Growt… Show more

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Cited by 22 publications
(13 citation statements)
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“…At genus level, all four diets triggered the relative abundance of four different genera, Hynocyclicus (FM), Aeromonas (PBM), Candidatus Bacilloplasma (FM + BSF), and Streptococcus (PBM + BSF). Hypnocyclicus commonly found in the ocean, but its role in fish and crayfish gut has yet to be revealed (Roalkvam et al, 2015). Aeromonas abundance has been reported for freshwater fish and some of Aeromonas hydrophila , A. veronii , A, sobria , and A, salmonicida have a potential association with fish diseases (Foysal et al, 2019a; Wang et al, 2018).…”
Section: Discussionmentioning
confidence: 99%
“…At genus level, all four diets triggered the relative abundance of four different genera, Hynocyclicus (FM), Aeromonas (PBM), Candidatus Bacilloplasma (FM + BSF), and Streptococcus (PBM + BSF). Hypnocyclicus commonly found in the ocean, but its role in fish and crayfish gut has yet to be revealed (Roalkvam et al, 2015). Aeromonas abundance has been reported for freshwater fish and some of Aeromonas hydrophila , A. veronii , A, sobria , and A, salmonicida have a potential association with fish diseases (Foysal et al, 2019a; Wang et al, 2018).…”
Section: Discussionmentioning
confidence: 99%
“…In addition, these bacterial groups also have an influential role to colonize the beneficial bacteria in the fish gut (Borrelli et al, 2016;Vargas-Albores et al, 2017;Wang et al, 2018). The results of the current study found Hypnocyclicus commonly found in the ocean but its role in fish and crayfish gut has yet to be revealed (Roalkvam et al, 2015). Aeromonas abundance has been reported for freshwater fish and some of Aeromonas hydrophila, A. veronii, A, sobria, and A, salmonicida have a potential association with fish diseases (Foysal et al, 2019a;Wang et al, 2018).…”
Section: Discussionmentioning
confidence: 47%
“…The DNA polymerase I (HTP4385) was also of direct interest for its potential as an enzymatic tool in many modern molecular biological methods such as PCR, genome sequencing and more [ 112 ]. As H. thermotrophus was reported to grow optimally at 48 °C [ 55 ], the proteins encoded by HTH1 may possess elevated thermostability and thermal activity, which are desirable traits in many industrial or scientific applications [ 113 , 114 ]. Furthermore, only limited structural similarity was observed for the chosen HTH1 proteins to structures present in PDB ( Supplementary Materials Table S4 ), suggesting novel features could potentially be revealed with their future structural analyses.…”
Section: Discussionmentioning
confidence: 99%
“…In this work, we report the first study of a temperate phage infecting H. thermotrophus: a free-living, Gram-negative, moderately thermophilic bacterium isolated from a microbial mat collected from the Seven Sisters hydrothermal vent field located on the Arctic Mid-Ocean Ridge [ 55 , 56 ]. Within the phylum Fusobacteria, Hypnocyclicus thermotrophus IR-2 T (=DSM 100055 =JCM 30901) is listed as the current type strain of the genus Hypnocyclicus .…”
Section: Introductionmentioning
confidence: 99%