International journal of systematic and evolutionary microbiology最新文献

{"title":"<i>Streptococcus suivaginalis</i> sp. nov., <i>Streptococcus iners</i> sp. nov. and <i>Streptococcus iners</i> subsp. <i>hyiners</i> subsp. nov. isolated from pigs.","authors":"Tracy L Nicholson, Keira L Stuart, Darrell O Bayles","doi":"10.1099/ijsem.0.006631","DOIUrl":"10.1099/ijsem.0.006631","url":null,"abstract":"<p><p>Three novel strains within the genus <i>Streptococcus</i> (29887^T, 29892^T and 29896^T) were isolated from healthy pigs during routine veterinary physical exams. All three strains were non-motile and non-spore-forming Gram-positive cocci. The complete genome of each strain was attained, and phylogenetic analyses were performed. Comparison of the genomes of 29887^T, 29892^T and 29896^T to the genomes of other <i>Streptococcus</i> strains revealed digital DNA-DNA hybridization (dDDH) values between 21.2% and 53.9% and average nucleotide identity (ANI) values between 70.00% and 94.44%. Phylogenetic analyses suggested that each strain, 29896^T (<i>S. suivaginalis</i> sp. nov.), 29887^T (<i>S. iners</i> sp. nov.) and 29892^T (<i>S. iners</i> subsp. <i>hyiners</i> subsp. nov.), may represent a novel species within the genus <i>Streptococcus</i>, while ANI analysis indicated that strains 29896^T (<i>S. suivaginalis</i> sp. nov.) and 29887^T (<i>S. iners</i> sp. nov.) represent novel species within the genus <i>Streptococcus,</i> and 29892^T (<i>S. iners</i> subsp. <i>hyiners</i> subsp. nov.) represents a novel subspecies of 29887^T (<i>S. iners</i> sp. nov.). Based upon the combined data presented in this study, two novel species, <i>Streptococcus suivaginalis</i> sp. nov. (type strain, 29896^T=NRRL B-65677^T=NCTC 14941^T) and <i>Streptococcus iners</i> sp. nov. (type strain, 29887^T=NRRL B-65675^T=NCTC 14939^T) are proposed, and one novel subspecies, <i>Streptococcus iners</i> subsp. <i>hyiners</i> subsp. nov. (type strain, 29892^T=NRRL B-65676^T=NCTC 14940^T) is proposed.</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11753468/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143004727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"<i>Ascidiimonas meishanensis</i> sp. nov. and <i>Leptobacterium meishanense</i> sp. nov., two bacteria isolated from marine sediment in the East China Sea.","authors":"Hao Wang, Huiting Wang, Xinyu Liu, Dawoon Jung, Eun-Young Seo, Shan He, Weiyan Zhang, Lijian Ding","doi":"10.1099/ijsem.0.006653","DOIUrl":"10.1099/ijsem.0.006653","url":null,"abstract":"<p><p>Two Gram-stain-negative, curved-rod-shaped, non-motile and aerobic bacteria W6^T and I13^T were isolated from marine sediment samples collected from Meishan Island located in the East China Sea. Catalase and oxidase activities and hydrolysis of Tween 40, 60 and 80 were positive for both strains, while nitrate reduction, indole production, methyl red reaction and H₂S production were negative. Phylogenetic analyses based on 16S rRNA and genome sequences revealed that strains W6^T and I13^T formed distinct phylogenetic lineages within the genera <i>Ascidiimonas</i> and <i>Leptobacterium</i>, respectively. Strain W6^T showed the closest relatedness to <i>Ascidiimonas aurantiaca</i> N5DA8-2C^T with 93.9% 16S rRNA gene sequence similarity, 70.7% average nucleotide identity (ANI), 71.0% average amino acid identity (AAI) and 16.4% digital DNA-DNA hybridization (dDDH) values, while strain I13^T was most closely related to <i>Leptobacterium flavescens</i> YM3-301^T with 92.1% 16S rRNA gene sequence similarity, 70.5% ANI, 72.1% AAI and 17.2% dDDH values. The two novel strains shared 92.0% 16S rRNA gene sequence similarity to each other and were identified as two distinct species based on 70.7% ANI, 70.4% AAI and 17.1% dDDH values calculated using whole-genome sequences. The genomes of strains W6^T and I13^T were 4.59 Mbp with a G+C content of 34.5 mol% and 2.38 Mbp with a G+C content of 36.2 mol%, respectively. The only respiratory quinone was menaquinone-6, the major polar lipid was phosphatidylethanolamine and the major cellular fatty acids were iso-C_15 : 0, iso-C_15 : 1 G and iso-C_17 : 0 3-OH. Based on phenotypic, chemotaxonomic and genotypic data, strains W6^T and I13^T are considered to represent two novel species in the genera <i>Ascidiimonas</i> and <i>Leptobacterium</i>, respectively, in the family Flavobacteriaceae, for which the names <i>Ascidiimonas meishanensis</i> sp. nov. and <i>Leptobacterium meishanense</i> sp. nov. are proposed. The type strains are W6^T (=KCTC 102201^T=MCCC 1K08928^T) and I13^T (=KCTC 102202^T=MCCC 1K08929^T), respectively.</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143052526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum: International Committee on Systematics of Prokaryotes Subcommittee on the Taxonomy of Mollicutes: minutes of the closed meeting, 7 July 2024, Gran Canaria, Spain.","authors":"Gail E Gasparich, Chih-Horng Kuo, Lucia Manso-Silván, Alain Blanchard, Mitchell F Balish","doi":"10.1099/ijsem.0.006662","DOIUrl":"https://doi.org/10.1099/ijsem.0.006662","url":null,"abstract":"","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143023419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"<i>Comamonas halotolerans</i> sp. nov., isolated from the faecal sample of a zoo animal, <i>Naemorhedus caudatus</i>.","authors":"Yerim Park, Bitnara Kim, Jihyeon Min, Woojun Park","doi":"10.1099/ijsem.0.006665","DOIUrl":"https://doi.org/10.1099/ijsem.0.006665","url":null,"abstract":"<p><p>Strain NoAH^T (=KACC 23135^T=JCM 35999^T), a novel Gram-negative, motile bacterium with a rod-shaped morphology, was isolated from the zoo animal faecal samples, specifically the long-tailed goral species <i>Naemorhedus caudatus</i>. The novel bacterial strain grew optimally in a nutrient broth medium under the following conditions: 1-2% (w/v) NaCl, pH 7-8 and 30 °C. The strain NoAH^T exhibited high tolerance to NaCl, with the ability to tolerate up to 7% (w/v) NaCl. Based on phylogenetic analyses using 16S rRNA gene sequencing, strain NoAH^T was found to have the closest relatedness to <i>Comamonas jiangduensis</i> YW1^T (98.5%), <i>Comamonas aquatica</i> ATCC 11330^T (97.9%), <i>Comamonas resistens</i> KCTC 82561^T (97.9%), <i>Comamonas fluminis</i> CJ34^T (97.7%) and <i>Comamonas suwonensis</i> EJ-4^T (97.6%). The genome size and genomic DNA G+C content of strain NoAH^T were 4.05 Mbp and 55.9 mol%, respectively. A whole-genome-level comparison of strain NoAH^T with <i>C. jiangduensis</i> YW^T, <i>Comamonas kerstersii</i> LMG 3475^T, <i>C. aquatica</i> NBRC 14918^T, <i>Comamonas terrigena</i> NBRC 12685^T and <i>C. fluminis</i> CJ34^T revealed the following orthologous average nucleotide identity values: 80.1, 79.0, 78.6, 76.3 and 75.2%, respectively. The major polar lipids of strain NoAH^T were phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol. Considering our findings in chemotaxonomic, genotypic and phenotypic characteristics, strain NoAH^T is identified as a novel species within the genus <i>Comamonas</i>, for which the name <i>Comamonas halotolerans</i> sp. nov. is proposed.</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143059003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"<i>Luteimonas salinilitoris</i> sp. nov., isolated from the shore soil of saline lake in Tibet of China.","authors":"Xuan Zhang, You-Jun Liao, Zi-Xuan Liu, Rui Wang, Hong-Can Liu, Yan-Yan Zheng, Yu-Guang Zhou, Ya-Jing Yu, Lu Xue, Ai-Hua Li","doi":"10.1099/ijsem.0.006630","DOIUrl":"https://doi.org/10.1099/ijsem.0.006630","url":null,"abstract":"<p><p>Five aerobic, Gram-stain-negative bacterial strains, designated as C3-2-a3^T, B3-2-R+30, C3-2-a4, C3-2-M3 and C3-2-M8, were isolated from the coastal soil of LungmuCo Lake in the Tibet Autonomous Region, PR China. Phylogenetic analyses based on 16S rRNA genes and genomes indicated that these isolates belonged to the genus <i>Luteimonas</i> and showed a high similarity to <i>Luteimonas suaedae</i> LNNU 24178^T (99.01%), <i>Luteimonas endophytica</i> RD2P54^T (98.80%) and <i>Luteimonas salinisoli</i> SJ-92^T (97.67%). The average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) values between strain C3-2-a3^T and related reference strains <i>Luteimonas suaedae</i> LNNU 24178^T, <i>Luteimonas endophytica</i> RD2P54^T and <i>Luteimonas salinisoli</i> SJ-92^T were 91.89, 83.11 and 83.86% and 46.90, 26.90 and 28.20%, respectively. All values were below the thresholds for delineating species, supporting their classification as novel species of the genus <i>Luteimonas</i>. The genomic DNA G+C content of strains C3-2-a3^T was 68.39%. The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and two unidentified phospholipids. The predominant respiratory quinone was ubiquinone-8 (Q-8), aligning with the characteristics of members of the genus <i>Luteimonas</i>. The major fatty acids (>10.0%) of strain C3-2-a3^T were identified as iso-C_{11 :  0}, iso-C_{15 :  0}, iso-C_16 : 0 and iso-C_17 : 1 <i> ω</i>9<i>c</i>. Based on the results of phenotypic, physiological, chemotaxonomic and genotypic characterizations, we propose that the isolates represent a novel species of genus <i>Luteimonas</i>, for which the name <i>Luteimonas salinilitoris s</i>p. nov is proposed. The type strain is C3-2-a3^T (=CGMCC 1.14507^T=KCTC 8642^T).</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142931785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Proposal of <i>Paradevosia tibetensis</i> (Wang <i>et al</i>. 2015) comb. nov. by transferring the species <i>Youhaiella tibetensis</i> to the genus <i>Paradevosia</i>.","authors":"Meng-Syun Li","doi":"10.1099/ijsem.0.006634","DOIUrl":"https://doi.org/10.1099/ijsem.0.006634","url":null,"abstract":"<p><p>The authors of a recent study in this journal in which the union of the genera <i>Youhaiella</i> and <i>Paradevosia</i> was proposed wrongfully indicated the correct generic name that should be used. According to Rule 24b(4) of the International Code of Nomenclature of Prokaryotes, <i>Paradevosia</i> Geng <i>et al</i>. 2015 has priority over <i>Youhaiella</i> Wang <i>et al</i>. 2015. Hence, a new combination is needed for the species that contains <i>Youhaiella tibetensis</i> F4^T, and in this letter, <i>Paradevosia tibetensis</i> (Wang <i>et al</i>. 2015) comb. nov. is proposed by correctly adopting the earliest legitimate generic name.</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143005239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"<i>Paludibacillus litoralis</i> gen. nov., sp. nov.: a novel species of a novel genus in the family <i>Paracoccaceae</i>, isolated from the sediment of a tidal flat located in Zhoushan, China.","authors":"Dong-Yan He, Jia-Wei Gao, Yu-Ruo Wang, Ke Cao, Yun-Fei Cao, Yang Li, Lu-Yao Wang, Xing-Cheng Wang, Lin Xu, Cong Sun","doi":"10.1099/ijsem.0.006655","DOIUrl":"10.1099/ijsem.0.006655","url":null,"abstract":"<p><p>A Gram-stain-negative, aerobic and rod-shaped bacterium, designated as HZG-20^T, was isolated from a tidal flat in Zhoushan, Zhejiang Province, China. The 16S rRNA sequence similarities between strain HZG-20^T and <i>Pikeienuella piscinae</i> RR4-56^T, <i>Coraliihabitans acroporae</i> NNCM2^T, <i>Parvibaculum indicum</i> P31^T and <i>Zhengella mangrovi</i> X9-2-2^T were 98.9, 91.7, 91.0 and 91.0%, respectively. Colonies of strain HZG-20^T were 1.4 mm in diameter, milky white, round, smooth and convex after cultivating on marine agar at 30 °C for 48 h. Cells were catalase and oxidase-negative. Growth occurred at 15-37 ℃ (optimum, 28 ℃), pH 5.0-9.0 (optimum, pH 6.0-8.0) and with 0-8% (w/v) NaCl (optimum, 1-3%). It contained Menaquinone-8 (H₂) as the sole respiratory quinone, and C_16:0 (11.8-13.6%), C_18:1 <i> ω9</i>c (6.8-13.3%) and C_15:0 anteiso (10.9-27.7%) as the major cellular fatty acids. The main polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, one unidentified phospholipid, one unidentified aminolipid, one unidentified phosphoglycolipid, two unidentified glycolipids (GL1-GL2) and three unidentified lipids (L1-L3). The genome of strain HZG-20^T was 3 835 886 bp in length, comprised 3746 protein-coding genes, with DNA G+C content of 67.1 mol%. The phylogenetic and phylogenomic trees indicated that strain HZG-20^T formed an independent and stable clade with <i>P. piscinae</i> RR4-56^T. However, the average nucleotide identity, <i>digit</i> DNA-DNA hybridization and average amino acid identity values between strain HZG-20^T and <i>P. piscinae</i> RR4-56^T, <i>C. acroporae</i> NNCM2^T, <i>P. indicum</i> P31^T and <i>Z. mangrovi</i> X9-2-2^T were 81.6, 71.1, 68.7 and 69.5%; 23.0, 18.5, 17.9 and 17.5%; and 78.2, 56.8, 56.5 and 61.9%, respectively, together with distinct chemotaxonomic features, indicating strain HZG-20^T should not be assigned to known genera. As a result, a novel species of a novel genus within the family <i>Paracoccaceae</i>, designated as <i>Paludibacillus litoralis</i> gen. nov., sp. nov., was proposed. The type strain is HZG-20^T (MCCC 1K08468^T=KCTC 82692^T).</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143046619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"<i>Desulfovibrio falkowii</i> sp. nov., <i>Porphyromonas miyakawae</i> sp. nov., <i>Mediterraneibacter flintii</i> sp. nov. and <i>Owariibacterium komagatae</i> gen. nov., sp. nov., isolated from human faeces.","authors":"Tomonari Hamaguchi, Misuzu Ohara, Atsushi Hisatomi, Kyohei Sekiguchi, Jun-Ichi Takeda, Jun Ueyama, Mikako Ito, Hiroshi Nishiwaki, Tomoo Ogi, Masaaki Hirayama, Moriya Ohkuma, Mitsuo Sakamoto, Kinji Ohno","doi":"10.1099/ijsem.0.006636","DOIUrl":"https://doi.org/10.1099/ijsem.0.006636","url":null,"abstract":"<p><p>Small, obligately anaerobic strains 13CB8C^T, 13CB11C^T, 13CB18C^T and 13GAM1G^T were isolated from a faecal sample in a patient with Parkinson's disease with a history of duodenal resection. After conducting a comprehensive polyphasic taxonomic analysis including genomic analysis, we propose the establishment of one new genus and four new species. The novel bacteria are <i>Desulfovibrio falkowii</i> sp. nov. (type strain JCM 36128^T = DSM 116810^T), <i>Porphyromonas miyakawae</i> sp. nov. (type strain JCM 36129^T = DSM 116947^T), <i>Mediterraneibacter flintii</i> sp. nov. (type strain JCM 36130^T = DSM 116866^T) and <i>Owariibacterium komagatae</i> gen. nov. sp. nov. (type strain JCM 36131^T = DSM 116982^T), respectively.</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142970860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"<i>Clostridium sediminicola</i> sp. nov., a crude oil aggregation-forming anaerobic bacterium isolated from marine sediment.","authors":"Shiori Hirano, Takeshi Terahara, Ririka Kato, Koji Mori, Moriyuki Hamada, Takamasa Miura, Ryo Matsumoto, Masahiro Hayashi, Takeshi Kobayashi","doi":"10.1099/ijsem.0.006641","DOIUrl":"10.1099/ijsem.0.006641","url":null,"abstract":"<p><p>A crude oil aggregation-forming, strictly anaerobic, Gram-stain-positive, spore-forming, rod-shaped, motile and mesophilic bacterium, named strain SH18-2^T, was isolated from marine sediment near Sado Island in the Sea of Japan. The temperature, salinity and pH ranges of this strain for the growth were 15-40 °C (optimum 35 °C), 0.5-6.0% NaCl (w/v; optimum 2.0%) and pH 6.0-8.0 (optimum 7.5), respectively. A phylogenetic analysis of the 16S rRNA gene sequence showed that this strain belongs to the genus <i>Clostridium</i>. It was most closely related to <i>Clostridium grantii</i> A-1^T (97.02% homology). The draft genome size was 5616089 bp, with a G+C content of 29.7 mol%. The digital DNA-DNA hybridization values determined using the Genome-to-Genome Distance Calculator and the average nucleotide identity between this strain and <i>C. grantii</i> A-1^T were 20.30 and 78.24%, respectively. Whole-organism hydrolysates of strain SH18-2^T contained <i>meso-</i>diaminopimelic acid; the major fatty acid was C_16:0, and the polar lipid pattern consisted of diphosphatidylglycerol, phosphatidylglycerol, glycolipid and three unidentified polar lipids. From the results of genotypic, phenotypic and chemotaxonomic analyses, SH18-2^T (=NBRC 116030^T=DSM 115762^T) is the type strain and represents a novel species of the genus <i>Clostridium</i>, and the name <i>Clostridium sediminicola</i> sp. nov. is proposed.</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142983460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"<i>Chionosphaera pinicorticola</i> sp. nov., a novel basidiomycetous yeast species isolated from pine tree bark in Gyeongju, South Korea.","authors":"Sangsu Lee, Chorong Ahn, Ye-Jin Kim, Seong-Min Choi, Jung-Woo Ko, Changmu Kim, Cheon-Seok Park","doi":"10.1099/ijsem.0.006622","DOIUrl":"10.1099/ijsem.0.006622","url":null,"abstract":"<p><p>A novel yeast species, isolated from the bark of pine trees in Gyeongju, South Korea, and designated as KCTC 37304^T (ex-type KACC 410729), is characterized by its genetic, morphological and physiological properties. Molecular phylogenetic analysis involving the D1/D2 domain of the 26S LSU rRNA gene and the internal transcribed spacer (ITS) region confirms that it belongs to the genus <i>Chionosphaera</i>. In comparison to <i>Chionosphaera cuniculicola</i> CBS:10065, the type strain of its closest relative, KCTC 37304^T exhibits 8 nucleotide substitutions (~2.07%) in the D1/D2 domain and 54 substitutions (~8.47%) in the ITS region. Morphologically, cells of KCTC 37304^T are globose to ovoid, which distinguishes them from the cylindrical cells of <i>C. cuniculicola</i>. Physiologically, KCTC 37304^T does not assimilate methanol or ethanol but can utilize succinate and xylitol, further differentiating it from <i>C. cuniculicola</i>. Based on these distinctive genetic, morphological and physiological features, we propose the new species <i>Chionosphaera pinicorticola</i> sp. nov., with KCTC 37304^T (ex-type strain KACC 410729) designated as the holotype.</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142921782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}