Journal
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
Volume 62, Issue -, Pages 1075-1080Publisher
SOC GENERAL MICROBIOLOGY
DOI: 10.1099/ijs.0.032326-0
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- Grants-in-Aid for Scientific Research [22570105] Funding Source: KAKEN
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A novel, facultatively anaerobic bacterium (strain JAM-BA0501(T)) was isolated from a deep subseafloor sediment sample at a depth of 247 m below seafloor off the Shimokita Peninsula of Japan in the north-western Pacific Ocean (Site C9001, 1180 m water depth). Cells of strain JAM-BA0501(T) were Gram-negative, filamentous, non-spore-forming and motile on solid medium by gliding. Phylogenetic analysis based on the 16S rRNA gene sequence of strain JAM-BA0501(T) indicated a distant relationship to strains representing genera within the order Bacteroidales, such as Alkaliflexus imshenetskii Z-7010(T) (91.1 % similarity), Marinilabilia salmonicolor ATCC 19041(T) (86.2 %) and Anaerophaga thermohalophila Fru22(T) (89.3 %). The new isolate produced isoprenoid quinones with menaquinone MK-7 as the major component, and the predominant fatty acids were iso-C-15:0 and anteiso-C-15:0. The DNA G + C content of the isolate was 42.9 mol%. Based on its taxonomic distinctiveness, strain JAM-BA0501(T) is considered to represent a novel species of a new genus within the family Marinilabiliaceae, for which the name Geofilum rubicundum gen. nov., sp. nov. is proposed. The type strain of Geofilum rubicundum is JAM-BA0501(T) (=JCM 15548(T) =NCIMB 14482(T)).
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