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Hojun Sung 7 Articles
Description of Luteibacter aegosomatis sp. nov., Luteibacter aegosomaticola sp. nov., and Luteibacter aegosomatissinici sp. nov. isolated from the Intestines of Aegosoma sinicum Larvae
Hae-In Joe , Jee-Won Choi , June-Young Lee , Hojun Sung , Su-Won Jeong , Yun-Seok Jeong , Jae-Yun Lee , Jin-Woo Bae
J. Microbiol. 2023;61(6):603-613.   Published online May 5, 2023
DOI: https://doi.org/10.1007/s12275-023-00051-7
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AbstractAbstract
Three novel bacterial strains, 321T, 335T, and 353T, were isolated from the intestines of Aegosoma sinicum larvae collected from Paju-Si, South Korea. The strains were Gram-negative, obligate aerobe and had rod-shaped cells with a single flagellum. The three strains belonged to the genus Luteibacter in the family Rhodanobacteraceae and shared < 99.2% similarity in their 16S rRNA gene sequence and < 83.56% similarity in thier whole genome sequence. Strains 321T, 335T, and 353T formed a monophyletic clade with Luteibacter yeojuensis KACC 11405T, L. anthropi KACC 17855T, and L. rhizovicinus KACC 12830T, with sequence similarities of 98.77–98.91%, 98.44–98.58%, and 97.88–98.02%, respectively. Further genomic analyses, including the construction of the Up-to-date Bacterial Core Gene (UBCG) tree and assessment of other genome-related indices, indicated that these strains were novel species belonging to the genus Luteibacter. All three strains contained ubiquinone Q8 as their major isoprenoid quinone and iso-C15:0 and summed feature 9 ( C16:0 10-methyl and/or iso-C17:1 ω9c) as their major cellular fatty acids. Phosphatidylethanolamine and diphosphatidylglycerol were the major polar lipids in all the strains. The genomic DNA G + C contents of strains 321T, 335T, and 353T were 66.0, 64.5, and 64.5 mol%, respectively. Based on multiphasic classification, strains 321T, 335T, and 353T were classified into the genus Luteibacter as the type strains of novel species, for which the names Luteibacter aegosomatis sp. nov., Luteibacter aegosomaticola sp. nov., and Luteibacter aegosomatissinici sp. nov. are proposed, respectively.

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  • Luteibacter sahnii sp. nov., A Novel Yellow-Colored Xanthomonadin Pigment Producing Probiotic Bacterium from Healthy Rice Seed Microbiome
    Gagandeep Jaiswal, Rekha Rana, Praveen Kumar Nayak, Rekha Chouhan, Sumit G. Gandhi, Hitendra K. Patel, Prabhu B. Patil
    Current Microbiology.2024;[Epub]     CrossRef
  • Validation List no. 215. Valid publication of new names and new combinations effectively published outside the IJSEM
    Aharon Oren, Markus Göker
    International Journal of Systematic and Evolutionary Microbiology .2024;[Epub]     CrossRef
Description of Polaribacter batillariae sp. nov., Polaribacter cellanae sp. nov., and Polaribacter pectinis sp. nov., novel bacteria isolated from the gut of three types of South Korean shellfish
Su-Won Jeong , Jeong Eun Han , June-Young Lee , Ji-Ho Yoo , Do-Yeon Kim , In Chul Jeong , Jee-Won Choi , Yun-Seok Jeong , Jae-Yun Lee , So-Yeon Lee , Euon Jung Tak , Hojun Sung , Hyun Sik Kim , Pil Soo Kim , Dong-Wook Hyun , Jin-Woo Bae
J. Microbiol. 2022;60(6):576-584.   Published online April 18, 2022
DOI: https://doi.org/10.1007/s12275-022-1604-3
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AbstractAbstract
Three aerobic, Gram-negative, and rod-shaped bacterial strains, designated strains G4M1T, SM13T, and L12M9T, were isolated from the gut of Batillaria multiformis, Cellana toreuma, and Patinopecten yessoensis collected from the Yellow Sea in South Korea. All the strains grew optimally at 25°C, in the presence of 2% (w/v) NaCl, and at pH 7. These three strains, which belonged to the genus Polaribacter in the family Flavobacteriaceae, shared < 98.8% in 16S rRNA gene sequence and < 86.68% in whole-genome sequence with each other. Compared with the type strains of Polaribacter, isolates showed the highest sequence similarity to P. haliotis KCTC 52418T (< 98.68%), followed by P. litorisediminis KCTC 52500T (< 98.13%). All the strains contained MK-6 as their predominant menaquinone and iso-C15:0 as their major fatty acid. Moreover, all the strains had phosphatidylethanolamine as their polar lipid component. In addition, strain G4M1T had two unidentified lipids and three unidentified aminolipids, strain SM13T had three unidentified lipids and three unidentified aminolipids, and strain L12M9T had three unidentified lipids and one unidentified aminolipid. The DNA G + C contents of strains G4M1T, SM13T, and L12M9T were 31.0, 30.4, and 29.7 mol%, respectively. Based on phenotypic, phylogenetic, chemotaxonomic, and genotypic findings, strains G4M1T (= KCTC 82388T = DSM 112372T), SM13T (= KCTC 82389T = DSM 112373T), and L12M9T (= KCTC 62751T = DSM 112374T) were classified into the genus Polaribacter as the type strains of novel species, for which the names Polaribacter batillariae sp. nov., Polaribacter cellanae sp. nov., and Polaribacter pectinis sp. nov., respectively, have been proposed.

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  • Polaribacter uvawellassae sp. nov., a Member of the Family Flavobacteriaceae Isolated from Mud Crab (Scylla serrata)
    W. M. Lakshani Anuradha Wanasinghe, Wang Xin, Yuan Siliang, Dongru Qiu
    Current Microbiology.2025;[Epub]     CrossRef
  • Unique skin microbiome: insights to understanding bacterial symbionts in octopuses
    Chelsea O. Bennice, Lauren E. Krausfeldt, W. Randy Brooks, Jose V. Lopez
    Frontiers in Marine Science.2024;[Epub]     CrossRef
  • An update on novel taxa and revised taxonomic status of bacteria isolated from aquatic host species described in 2022–2023
    Claire R. Burbick, Sara D. Lawhon, Brittany Bukouras, Giovanna Lazzerini, Erik Munson, Romney M. Humphries
    Journal of Clinical Microbiology.2024;[Epub]     CrossRef
  • Polaribacter ponticola sp. nov., isolated from seawater, reclassification of Polaribacter undariae as a later heterotypic synonym of Polaribacter sejongensis, and emended description of Polaribacter sejongensis Kim et al. 2013
    Ju Hye Baek, Mahrukh Butt, Dong Min Han, Jeong Min Kim, Seohui Choi, Che Ok Jeon
    International Journal of Systematic and Evolutionary Microbiology .2024;[Epub]     CrossRef
  • Rhodobacteraceae are Prevalent and Ecologically Crucial Bacterial Members in Marine Biofloc Aquaculture
    Meora Rajeev, Jang-Cheon Cho
    Journal of Microbiology.2024; 62(11): 985.     CrossRef
  • Validation List no. 207. Valid publication of new names and new combinations effectively published outside the IJSEM
    Aharon Oren, George Garrity
    International Journal of Systematic and Evolutionary Microbiology .2022;[Epub]     CrossRef
  • Nocardioides palaemonis sp. nov. and Tessaracoccus palaemonis sp. nov., isolated from the gastrointestinal tract of lake prawn
    Do-Yeon Kim, In-Chul Jeong, So-Yeon Lee, Yun-Seok Jeong, Jeong Eun Han, Euon Jung Tak, June-Young Lee, Pil Soo Kim, Dong-Wook Hyun, Jin-Woo Bae
    International Journal of Systematic and Evolutionary Microbiology .2022;[Epub]     CrossRef
Lysobacter ciconiae sp. nov., and Lysobacter avium sp. nov., isolated from the faeces of an Oriental stork
So-Yeon Lee , Pil Soo Kim , Hojun Sung , Dong-Wook Hyun , Jin-Woo Bae
J. Microbiol. 2022;60(5):469-477.   Published online March 31, 2022
DOI: https://doi.org/10.1007/s12275-022-1647-5
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AbstractAbstract
Two Gram-stain-negative, mesophilic, strictly aerobic, nonspore forming, and yellow-pigmented strains with rod-shaped cells, designated H21R20T and H23M41T, were isolated from the faeces of an Oriental stork (Ciconia boyciana). Based on 16S rRNA gene sequences, both strains showed the highest similarity (98.3−98.4%) to the type strain of Lysobacter concretionis. Phylogenetic analysis based on the 16S rRNA genes and 92 bacterial core genes showed that strains H21R20T and H23M41T were robustly clustered with L. concretionis Ko07T. Whole genome sequencing revealed that the genomes of both strains were approximately 2.9 Mb in size. The DNA G + C contents of the H21R20T and H23M41T strains were 67.3 and 66.6%, respectively. The two strains showed 80.1−81.7% average nucleotide identity with L. concretionis Ko07T. Strain H21R20T grew optimally at 30°C and pH 8.0 and in the presence of 0.5–3% (wt/vol) NaCl, while strain H23M41T grew optimally at 30°C and pH 7.0–8.0 and in the presence of 0–3% (wt/vol) NaCl. Both strains possessed iso-C15:0, iso-C16:0 and summed feature 9 (iso-C17:1 ω9c and/or C16:0 10-methyl) as the major cellular fatty acids, ubiquinone Q-8 as a predominant quinone, and diphosphatidylglycerol, phosphatidylglycerol, and phosphatidylethanolamine as the major polar lipids. A multifaceted investigation demonstrated that strains H21R20T and H23M41T represent novel species of the genus Lysobacter, for which we propose the names Lysobacter ciconiae sp. nov. and Lysobacter avium sp. nov. for strains H21R20T (= KCTC 82316T = JCM 34832T) and H23M41T (= KCTC 62676T = JCM 33223T), respectively.

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  • Isolation and Characterization of an Antioxidant Aryl Polyene Pigment from Antarctic Bacterium Lysobacter sp. A03
    Maria Elisa Pailliè-Jiménez, Paolo Stincone, Jamile Queiroz Pereira, Patricio Román Santagapita, Eliseu Rodrigues, Adriano Brandelli
    Molecular Biotechnology.2024;[Epub]     CrossRef
  • Luteimonas flava sp. nov. and Aquilutibacter rugosus gen. nov., sp. nov., isolated from freshwater environments in China and re-examining the taxonomic status of genera Luteimonas and Lysobacter
    Huibin Lu, Li Chen, Yujing Wang, Peng Xing, Qinglong Wu
    International Journal of Systematic and Evolutionary Microbiology .2024;[Epub]     CrossRef
  • An update on novel taxa and revised taxonomic status of bacteria isolated from non-domestic animals described in 2022
    Claire R. Burbick, Sara D. Lawhon, Erik Munson, Elizabeth Thelen, Amanda Zapp, Anastasia Wilson, Romney M. Humphries
    Journal of Clinical Microbiology.2023;[Epub]     CrossRef
  • Lysobacter changpingensis sp. nov., a novel species of the genus Lysobacter isolated from a rhizosphere soil of strawberry in China
    Bang-Yan Niu, Dong-Jun Ren, Fang-Bo Zhang, Hong-Tu Zhu, Hai-Lei Wei, Ming-Chao Ma, Miao Gao
    Folia Microbiologica.2023; 68(6): 991.     CrossRef
  • Nocardioides palaemonis sp. nov. and Tessaracoccus palaemonis sp. nov., isolated from the gastrointestinal tract of lake prawn
    Do-Yeon Kim, In-Chul Jeong, So-Yeon Lee, Yun-Seok Jeong, Jeong Eun Han, Euon Jung Tak, June-Young Lee, Pil Soo Kim, Dong-Wook Hyun, Jin-Woo Bae
    International Journal of Systematic and Evolutionary Microbiology .2022;[Epub]     CrossRef
  • Validation List no. 207. Valid publication of new names and new combinations effectively published outside the IJSEM
    Aharon Oren, George Garrity
    International Journal of Systematic and Evolutionary Microbiology .2022;[Epub]     CrossRef
Description of Ornithinimicrobium ciconiae sp. nov., and Ornithinimicrobium avium sp. nov., isolated from the faeces of the endangered and near-threatened birds
So-Yeon Lee , Hojun Sung , Pil Soo Kim , Hyun Sik Kim , Jae-Yun Lee , June-Young Lee , Yun-Seok Jeong , Euon Jung Tak , Jeong Eun Han , Dong-Wook Hyun , Jin-Woo Bae
J. Microbiol. 2021;59(11):978-987.   Published online September 27, 2021
DOI: https://doi.org/10.1007/s12275-021-1323-1
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AbstractAbstract
Phenotypic and genomic analyses were performed to characterize two novel species, H23M54T and AMA3305T, isolated from the faeces of the Oriental stork (Ciconia boyciana) and the cinereous vulture (Aegypius monachus), respectively. Strains H23M54T and AMA3305T showed the highest similarities of 16S rRNA gene sequences and complete genome sequences with Ornithinimicrobium cavernae CFH 30183T (98.5% of 16S rRNA gene sequence similarity and 82.1% of average nucleotide identity, ANI) and O. pekingense DSM 21552T (98.5% of 16S rRNA gene sequence similarity and 82.3% of ANI), respectively. Both strains were Gram-stain-positive, obligate aerobes, non-motile, non-spore-forming, and coccoid- and rodshaped. Strain H23M54T grew optimally at 25–30°C and pH 8.0 and in the presence of 1.5–2% (wt/vol) NaCl, while strain AMA3305T grew optimally at 30°C and pH 7.0 and in the presence of 1–3% (wt/vol) NaCl. Both strains had iso-C15:0, iso- C16:0, and summed feature 9 (iso-C17:1 ω9c and/or C16:0 10- methyl) as major cellular fatty acids. MK-8 (H4) was identified as the primary respiratory quinone in both strains. Strains H23M54T and AMA3305T possessed diphosphatidylglycerol and phosphatidylglycerol as major polar lipids. Moreover, strains H23M54T and AMA3305T commonly contained ribose and glucose as major sugars and L-ornithine, L-alanine, glycine, and aspartic acid as major amino acids. The polyphasic taxonomic data indicate that strains H23M54T and AMA3305T represent novel species of the genus Ornithinimicrobium. We propose the names Ornithinimicrobium ciconiae sp. nov. and Ornithinimicrobium avium sp. nov. for strains H23M54T (= KCTC 49151T = JCM 33221T) and AMA3305T (= KCTC 49180T = JCM 32873T), respectively.

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  • Molecular insight and antimicrobial potential of Actinomycetota isolated from Tanzania’s seagrass sediments
    Lucy Dalusi Mbusi, Sylvester Leonard Lyantagaye, Thomas Jacob Lyimo
    Biologia.2024; 80(1): 163.     CrossRef
  • Bacterial community of ticks (Acari: Ixodidae) and mammals from Arauca, Colombian Orinoquia
    Paula A. Ossa-López, Héctor E. Ramírez-Chaves, María Elena Álvarez López, Gabriel Jaime Castaño Villa, Fredy A. Rivera-Páez
    International Journal for Parasitology: Parasites and Wildlife.2024; 24: 100943.     CrossRef
  • Morphological and genomic characteristics of two novel actinomycetes, Ornithinimicrobium sufpigmenti sp. nov. and Ornithinimicrobium faecis sp. nov. isolated from bat faeces (Rousettus leschenaultia and Taphozous perforates)
    Yuyuan Huang, Suping Zhang, Yuanmeihui Tao, Jing Yang, Shan Lu, Dong Jin, Ji Pu, Wenbo Luo, Han Zheng, Liyun Liu, Jia-fu Jiang, Jianguo Xu
    Frontiers in Cellular and Infection Microbiology.2023;[Epub]     CrossRef
  • Description of Ornithinimicrobium cryptoxanthini sp. nov., a Novel Actinomycete Producing β-cryptoxanthin Isolated from the Tongtian River Sediments
    Yuyuan Huang, Yifan Jiao, Sihui Zhang, Yuanmeihui Tao, Suping Zhang, Dong Jin, Ji Pu, Liyun Liu, Jing Yang, Shan Lu
    Journal of Microbiology.2023; 61(4): 379.     CrossRef
  • An update on novel taxa and revised taxonomic status of bacteria isolated from non-domestic animals described in 2022
    Claire R. Burbick, Sara D. Lawhon, Erik Munson, Elizabeth Thelen, Amanda Zapp, Anastasia Wilson, Romney M. Humphries
    Journal of Clinical Microbiology.2023;[Epub]     CrossRef
  • Valid publication of new names and new combinations effectively published outside the IJSEM
    Aharon Oren, George M. Garrity
    International Journal of Systematic and Evolutionary Microbiology .2022;[Epub]     CrossRef
  • Lysobacter ciconiae sp. nov., and Lysobacter avium sp. nov., isolated from the faeces of an Oriental stork
    So-Yeon Lee, Pil Soo Kim, Hojun Sung, Dong-Wook Hyun, Jin-Woo Bae
    Journal of Microbiology.2022; 60(5): 469.     CrossRef
Pathogenomics of Streptococcus ilei sp. nov., a newly identified pathogen ubiquitous in human microbiome
Dong-Wook Hyun , Jae-Yun Lee , Min-Soo Kim , Na-Ri Shin , Tae Woong Whon , Kyung Hyun Kim , Pil Soo Kim , Euon Jung Tak , Mi-Ja Jung , June Young Lee , Hyun Sik Kim , Woorim Kang , Hojun Sung , Che Ok Jeon , Jin-Woo Bae
J. Microbiol. 2021;59(8):793-806.
DOI: https://doi.org/10.1007/s12275-021-1165-x
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AbstractAbstract
Viridans group streptococci are a serious health concern because most of these bacteria cause life-threatening infections, especially in immunocompromised and hospitalized individuals. We focused on two alpha-hemolytic Streptococcus strains (I-G2 and I-P16) newly isolated from an ileostomy effluent of a colorectal cancer patient. We examined their pathogenic potential by investigating their prevalence in human and assessing their pathogenicity in a mouse model. We also predicted their virulence factors and pathogenic features by using comparative genomic analysis and in vitro tests. Using polyphasic and systematic approaches, we identified the isolates as belonging to a novel Streptococcus species and designated it as Streptococcus ilei. Metagenomic survey based on taxonomic assignment of datasets from the Human Microbiome Project revealed that S. ilei is present in most human population and at various body sites but is especially abundant in the oral cavity. Intraperitoneal injection of S. ilei was lethal to otherwise healthy C57BL/6J mice. Pathogenomics and in vitro assays revealed that S. ilei possesses a unique set of virulence factors. In agreement with the in vivo and in vitro data, which indicated that S. ilei strain I-G2 is more pathogenic than strain I-P16, only the former displayed the streptococcal group A antigen. We here newly identified S. ilei sp. nov., and described its prevalence in human, virulence factors, and pathogenicity. This will help to prevent S. ilei strain misidentification in the future, and improve the understanding and management of streptococcal infections.

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    Yingying Bi, Yuezhu Wang, Wu Li, Yuhang Chen, Jinlong Qin, Huajun Zheng
    BMC Microbiology.2025;[Epub]     CrossRef
  • Characterization of blood microbial population in beef calves with clinical signs of sepsis using 16S rRNA gene sequencing
    Giuliano Borriello, Flaminia Valentini, Sara Ferrini, Giorgia Di Muro, Giulia Cagnotti, Elena Grego, Angela Maria Catania, Maria Cristina Stella, Ugo Ala, Patrizia Nebbia, Antonio D’Angelo, Claudio Bellino, Ulrike Gertrud Munderloh
    PLOS One.2025; 20(5): e0324469.     CrossRef
  • Molecular characterization of a novel putative pathogen, Streptococcus nakanoensis sp. nov., isolated from sputum culture
    Takeaki Wajima, Takashi Sugawara, Emi Tanaka, Kei-ichi Uchiya, Justin R. Kaspar
    Microbiology Spectrum.2024;[Epub]     CrossRef
  • Streptococcus raffinosi sp. nov., isolated from human breast milk samples
    Ha Viet Nguyen, Anh Thi Van Trinh, Linh Nguyen Hai Bui, Anh Thi Lan Hoang, Quyen Thi Le Tran, Trung Thanh Trinh
    International Journal of Systematic and Evolutionary Microbiology .2024;[Epub]     CrossRef
  • Description of Streptococcus dentalis sp. nov., Streptococcus gingivalis sp. nov., and Streptococcus lingualis sp. nov., Isolated from Human Oral Cavities
    Beom-Jin Goo, Young-Sik Choi, Do-Hun Gim, Su-Won Jeong, Jee-Won Choi, Hojun Sung, Jae-Yun Lee, Jin-Woo Bae
    Journal of Microbiology.2024; 62(11): 973.     CrossRef
  • Valid and accepted novel bacterial taxa derived from human clinical specimens and taxonomic revisions published in 2022
    Erik Munson, Arianna Carella, Karen C. Carroll, Romney M. Humphries
    Journal of Clinical Microbiology.2023;[Epub]     CrossRef
  • Valid publication of new names and new combinations effectively published outside the IJSEM. Validation List no. 203
    Aharon Oren, George M. Garrity
    International Journal of Systematic and Evolutionary Microbiology .2022;[Epub]     CrossRef
  • Modulation of gut microbiota and fecal metabolites by corn silk among high-fat diet-induced hypercholesterolemia mice
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    Frontiers in Nutrition.2022;[Epub]     CrossRef
  • Reclassification of Streptococcus ilei as a later heterotypic synonym of Streptococcus koreensis based on whole-genome sequence analysis
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    Archives of Microbiology.2022;[Epub]     CrossRef
Description of Nocardioides piscis sp. nov., Sphingomonas piscis sp. nov. and Sphingomonas sinipercae sp. nov., isolated from the intestine of fish species Odontobutis interrupta (Korean spotted sleeper) and Siniperca scherzeri (leopard mandarin fish)
Dong-Wook Hyun , Yun-Seok Jeong , Jae-Yun Lee , Hojun Sung , So-Yeon Lee , Jee-Won Choi , Hyun Sik Kim , Pil Soo Kim , Jin-Woo Bae
J. Microbiol. 2021;59(6):552-562.   Published online April 20, 2021
DOI: https://doi.org/10.1007/s12275-021-1036-5
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AbstractAbstract
A polyphasic taxonomic approach was used to characterize three novel bacterial strains, designated as HDW12AT, HDW- 15BT, and HDW15CT, isolated from the intestine of fish species Odontobutis interrupta or Siniperca scherzeri. All isolates were obligate aerobic, non-motile bacteria, and grew optimally at 30°C. Phylogenetic analysis based on 16S rRNA sequences revealed that strain HDW12AT was a member of the genus Nocardioides, and closely related to Nocardioides allogilvus CFH 30205T (98.9% sequence identities). Furthermore, strains HDW15BT and HDW15CT were members of the genus Sphingomonas, and closely related to Sphingomonas lutea JS5T and Sphingomonas sediminicola Dae 20T (97.1% and 97.9% sequence identities), respectively. Strain HDW12AT contained MK-8 (H4), and strains HDW15BT and HDW15CT contained Q-10 as the respiratory quinone. Major polar lipid components of strain HDW12AT were diphosphatidylglycerol, phosphatidylglycerol, and phosphatidylinositol, and those of strains HDW15BT and HDW15CT were sphingoglycolipid, diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, and phosphatidylcholine. The G + C content of strains HDW12AT, HDW15BT, and HDW15CT were 69.7, 63.3, and 65.5%, respectively. The results of phylogenetic, phenotypic, chemotaxonomic, and genotypic analyses suggest that strain HDW12AT represents a novel species within the genus Nocardioides, and strains HDW15BT and HDW15CT represent two novel species within the genus Sphingomonas. We propose the names Nocardioides piscis for strain HDW12AT (= KACC 21336T = KCTC 49321T = JCM 33670T), Sphingomonas piscis for strain HDW15BT (= KACC 21341T = KCTC 72588T = JCM 33738T), and Sphingomonas sinipercae for strain HDW15CT (= KACC 21342T = KCTC 72589T = JCM 33739T).

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  • Description of Streptococcus dentalis sp. nov., Streptococcus gingivalis sp. nov., and Streptococcus lingualis sp. nov., Isolated from Human Oral Cavities
    Beom-Jin Goo, Young-Sik Choi, Do-Hun Gim, Su-Won Jeong, Jee-Won Choi, Hojun Sung, Jae-Yun Lee, Jin-Woo Bae
    Journal of Microbiology.2024; 62(11): 973.     CrossRef
  • Sphingomonas flavescens sp. nov., isolated from soil
    Hyosun Lee, Dhiraj Kumar Chaudhary, Dong-Uk Kim
    Archives of Microbiology.2024;[Epub]     CrossRef
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    Antonie van Leeuwenhoek.2024;[Epub]     CrossRef
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    Claire R. Burbick, Sara D. Lawhon, Brittany Bukouras, Giovanna Lazzerini, Erik Munson, Romney M. Humphries
    Journal of Clinical Microbiology.2024;[Epub]     CrossRef
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    Ruizhe Liu, Shan Wang, Dongliang Huang, Yulu Huang, Tianliang He, Xinhua Chen
    Aquaculture.2024; 578: 740082.     CrossRef
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    Vahid Keshavarz-Tohid, Somayeh Ebrahimi
    Physiological and Molecular Plant Pathology.2023; 127: 102124.     CrossRef
  • Description and genomic characterization of Nocardioides bruguierae sp. nov., isolated from Bruguiera gymnorhiza
    Xiaohui Chen, Zhouqing Zheng, Feina Li, Xiao Ma, Feng Chen, Mingsheng Chen, Li Tuo
    Systematic and Applied Microbiology.2023; 46(2): 126391.     CrossRef
  • Parasphingorhabdus cellanae sp. nov., isolated from the gut of a Korean limpet, Cellana toreuma
    Ji-Ho Yoo, Jeong Eun Han, June-Young Lee, Su-Won Jeong, Yun-Seok Jeong, Jae-Yun Lee, So-Yeon Lee, Hojun Sung, Euon Jung Tak, Hyun Sik Kim, Pil Soo Kim, Jee-Won Choi, Do-Yeon Kim, In Chul Jeong, Do-Hun Gim, Seo Min Kang, Jin-Woo Bae
    International Journal of Systematic and Evolutionary Microbiology .2022;[Epub]     CrossRef
  • Nocardioides palaemonis sp. nov. and Tessaracoccus palaemonis sp. nov., isolated from the gastrointestinal tract of lake prawn
    Do-Yeon Kim, In-Chul Jeong, So-Yeon Lee, Yun-Seok Jeong, Jeong Eun Han, Euon Jung Tak, June-Young Lee, Pil Soo Kim, Dong-Wook Hyun, Jin-Woo Bae
    International Journal of Systematic and Evolutionary Microbiology .2022;[Epub]     CrossRef
  • Intergenerational Transfer of Persistent Bacterial Communities in Female Nile Tilapia
    Yousri Abdelhafiz, Jorge M. O. Fernandes, Claudio Donati, Massimo Pindo, Viswanath Kiron
    Frontiers in Microbiology.2022;[Epub]     CrossRef
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    Aharon Oren, George M. Garrity
    International Journal of Systematic and Evolutionary Microbiology .2022;[Epub]     CrossRef
  • Anaerostipes hominis sp. nov., a novel butyrate-producing bacteria isolated from faeces of a patient with Crohn's disease
    Jae-Yun Lee, Woorim Kang, Na-Ri Shin, Dong-Wook Hyun, Pil Soo Kim, Hyun Sik Kim, June-Young Lee, Euon Jung Tak, Hojun Sung, Jin-Woo Bae
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  • Pathogenomics of Streptococcus ilei sp. nov., a newly identified pathogen ubiquitous in human microbiome
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Leucobacter coleopterorum sp. nov., Leucobacter insecticola sp. nov., and Leucobacter viscericola sp. nov., isolated from the intestine of the diving beetles, Cybister brevis and Cybister lewisianus, and emended description of the genus Leucobacter
Dong-Wook Hyun , Hojun Sung , Pil Soo Kim , Ji-Hyun Yun , Jin-Woo Bae
J. Microbiol. 2021;59(4):360-368.   Published online January 26, 2021
DOI: https://doi.org/10.1007/s12275-021-0472-6
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AbstractAbstract
Three novel bacterial strains, HDW9AT, HDW9BT, and HDW9CT, isolated from the intestine of the diving beetles Cybister lewisianus and Cybister brevis, were characterized as three novel species using a polyphasic approach. The isolates were Gram-staining-positive, strictly aerobic, non-motile, and rod-shaped. They grew optimally at 30°C (pH 7) in the presence of 0.5% (wt/vol) NaCl. Phylogenetic analysis based on the 16S rRNA gene sequences revealed that they belong to the genus Leucobacter and are closely related to L. denitrificans M1T8B10T (98.4–98.7% sequence similarity). Average nucleotide identity (ANI) values among the isolates were 76.4–84.1%. ANI values for the isolates and the closest taxonomic species, L. denitrificans KACC 14055T, were 72.3–73.1%. The isolates showed ANI values of < 76.5% with all analyzable Leucobacter strains in the EzBioCloud database. The genomic DNA G + C content of the isolates was 60.3–62.5%. The polar lipid components were phosphatidylglycerol, diphosphatidylglycerol, and other unidentified glycolipids, phospholipids, and lipids. The major cellular fatty acids were anteiso- C15:0, iso-C16:0, and anteiso-C17:0. MK-10 was the major respiratory quinone, and MK-7 and MK-11 were the minor respiratory quinones. The whole-cell sugar components of the isolates were ribose, glucose, galactose, and mannose. The isolates harbored L-2,4-diaminobutyric acid, L-serine, L-lysine, L-aspartic acid, glycine, and D-glutamic acid within the cell wall peptidoglycan. Based on phylogenetic, phenotypic, chemotaxonomic, and genotypic analyses, strains HDW9AT, HDW9BT, and HDW9CT represent three novel species within the genus Leucobacter. We propose the name Leucobacter coleopterorum sp. nov. for strain HDW9AT (= KACC 21331T = KCTC 49317T = JCM 33667T), the name Leucobacter insecticola sp. nov. for strain HDW9BT (= KACC 21332T = KCTC 49318T = JCM 33668T), and the name Leucobacter viscericola sp. nov. for strain HDW9CT (= KACC 21333T = KCTC 49319T = JCM 33669T).

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Hojun Sung 1 Article
Description of Streptococcus dentalis sp. nov., Streptococcus gingivalis sp. nov., and Streptococcus lingualis sp. nov., Isolated from Human Oral Cavities
Beom-Jin Goo, Young-Sik Choi, Do-Hun Gim, Su-Won Jeong, Jee-Won Choi, Hojun Sung, Jae-Yun Lee, Jin-Woo Bae
J. Microbiol. 2024;62(11):973-983.   Published online November 12, 2024
DOI: https://doi.org/10.1007/s12275-024-00178-1
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AbstractAbstract
We isolated three novel strains, S1T, S2T, and S5T, from human oral cavities and identified them as distinct novel species. All these strains are facultatively anaerobic, Gram-stain-positive, and non-flagellated bacteria. Their optimal growth conditions for these strains were observed in Columbia broth (CB) at 37 °C, pH 7.0, and in the absence of NaCl. Phylogenetic analyses, employing the 16S rRNA gene and whole-genome sequencing, confirmed that all three strains belong to the genus Streptococcus. The 16S rRNA gene sequences of strains S1T, S2T, and S5T showed the highest similarities to Streptococcus parasanguinis, 98.57%, 99.05%, and 99.05%, respectively, and the orthologous average nucleotide identity (OrthoANI) values between the three strains and S. parasanguinis were 93.82%, 93.67%, and 94.04%, respectively. The pairwise OrthoANI values between the novel strains were 94.37% (S1T-S2T), 95.03% (S2T-S5T), and 94.71% (S1T-S5T). All strains had C20:1 ω9c and summed feature 8 (C18:1 ω7c and/or C18:1 ω6c) as major cellular fatty acids. Additionally, diphosphatidylglycerol (DPG) and hydroxyphosphatidylethanolamine (OH-PE) were identified as major polar lipids. Menaquinone was undetected in all strains. The results from the phylogenetic, phenotypic, chemotaxonomic, and genotypic analyses collectively indicated that strains S1T, S2T, and S5T represent three distinct novel species within the genus Streptococcus, and we propose the names Streptococcus dentalis sp. nov. for strain S1T (= KCTC 21234T = JCM 36526T), Streptococcus gingivalis sp. nov. for strain S2T (= KCTC 21235T = JCM 36527T), and Streptococcus lingualis sp. nov. for strain S5T (= KCTC 21236T = JCM 36528T).

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  • Validation List no. 223. Valid publication of new names and new combinations effectively published outside the IJSEM
    Aharon Oren, Markus Göker
    International Journal of Systematic and Evolutionary Microbiology .2025;[Epub]     CrossRef

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