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- Flavihumibacter fluminis sp. nov. and Flavihumibacter rivuli sp. nov., isolated from a freshwater stream
- Miri S. Park , Hyeonuk Sa , Ilnam Kang , Jang-Cheon Cho
- J. Microbiol. 2022;60(8):806-813. Published online July 29, 2022
- DOI: https://doi.org/10.1007/s12275-022-2298-2
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Abstract
- Two Gram-stain-positive, aerobic, chemoheterotrophic, nonmotile, rod-shaped, and yellow-pigmented bacterial strains, designated IMCC34837T and IMCC34838T, were isolated from a freshwater stream. Results of 16S rRNA gene-based phylogenetic analyses showed that strains IMCC34837T and IMCC- 34838T shared 96.3% sequence similarity and were most closely related to Flavihumibacter profundi Chu64-6-1T (99.6%) and Flavihumibacter cheonanensis WS16T (96.4%), respectively. Complete whole-genome sequences of strains IMCC- 34837T and IMCC34838T were 5.0 Mbp and 4.3 Mbp of genome size with 44.5% and 47.9% of DNA G + C contents, respectively. Average nucleotide identity (ANI) and digital DNA- DNA hybridization (dDDH) values between the two strains were 70.0% and 17.9%, repectively, revealing that they are independent species. The two strains showed ≤ 75.2% ANI and ≤ 19.3% dDDH values to each closely related species of the genus Flavihumibacter, indicating that the two strains represent each novel species. Major fatty acid constituents of strain IMCC34837T were iso-C15:0, iso-C15:1 G and anteiso-C15:0 and those of strain IMCC34838T were iso-C15:0 and iso-C15:1 G. The predominant isoprenoid quinone detected in both strains was menaquinone-7 (MK-7). Major polar lipids of both strains were phosphatidylethanolamine, aminolipids, and glycolipids. Based on the phylogenetic and phenotypic characterization, strains IMCC34837T and IMCC34838T were considered to represent two novel species within the genus Flavihumibacter, for which the names Flavihumibacter fluminis sp. nov. and Flavihumibacter rivuli sp. nov. are proposed with IMCC34837T (= KACC 21752T = NBRC 115292T) and IMCC34838T (= KACC 21753T = NBRC 115293T) as the type strains, respectively.
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- Update on the proposed minimal standards for the use of genome data for the taxonomy of prokaryotes
Raúl Riesco, Martha E. Trujillo
International Journal of Systematic and Evolutionary Microbiology .2024;[Epub] CrossRef - Leuconostoc aquikimchii sp. nov., a Lactic Acid Bacterium Isolated from Cabbage Watery Kimchi
Subin Kim, Se Hee Lee, Ki Hyun Kim, Misun Yun
Journal of Microbiology.2024; 62(12): 1089. CrossRef - Congregibacter variabilis sp. nov. and Congregibacter brevis sp. nov. Within the OM60/NOR5 Clade, Isolated from Seawater, and Emended Description of the Genus Congregibacter
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Journal of Microbiology.2024; 62(9): 739. CrossRef - Flavobacterium rivulicola sp. nov., Isolated from a Freshwater Stream
Sumin Kim, Miri S. Park, Ilnam Kang, Jang-Cheon Cho
Current Microbiology.2024;[Epub] CrossRef - Validation List no. 211. Valid publication of new names and new combinations effectively published outside the IJSEM
Aharon Oren, Markus Göker
International Journal of Systematic and Evolutionary Microbiology .2023;[Epub] CrossRef - Proposal of Flavihumibacter fluvii sp. nov. as a replacement name for the effectively published but invalidated epithet Flavihumibacter fluminis Park et al. 2022
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Journal of Microbiology.2023; 61(6): 649. CrossRef
- Update on the proposed minimal standards for the use of genome data for the taxonomy of prokaryotes
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