International journal of systematic and evolutionary microbiology最新文献

{"title":"<i>Thalassobellus suaedae</i> gen. nov., sp. nov., a marine bacterium of the family <i>Flavobacteriaceae</i> isolated from a halophyte <i>Suaeda japonica</i>.","authors":"Su Yeon Lee, Ami Rho, Jy Young Choi, Jaeho Choi, Bo Min Lee, Byung Cheol Cho, Chung Yeon Hwang","doi":"10.1099/ijsem.0.006663","DOIUrl":"https://doi.org/10.1099/ijsem.0.006663","url":null,"abstract":"<p><p>Two Gram-stain-negative, facultative anaerobic, rod-shaped and non-gliding bacteria, designated as HL-DH10^T and HL-DH14, were isolated from the halophyte <i>Suaeda japonica</i> in a mudflat, Republic of Korea. Based on the results of 16S rRNA gene pairwise analysis, the two isolates were the members of the family <i>Flavobacteriaceae</i>, and <i>Aestuariibaculum suncheonense</i> SC17^T was the most closely related to strains HL-DH10^T and HL-DH14 with 96.3% and 95.4% sequence similarity, respectively. The average nt identity and digital DNA-DNA hybridization values between strains HL-DH10^T and HL-DH14 and other related species were all less than 79.2% and 21.9%, respectively. The genomic DNA G+C contents of strains HL-DH10^T and HL-DH14 were 32.0% and 31.5%, respectively. Cells of these strains showed optimal growth at 25 °C, pH 6.5-7.0 and 2.5-4.0% (w/v) sea salts. The major respiratory quinone was menaquinone-6. The major cellular fatty acids were iso-C_15:0 (14.0-16.0%), iso-C_15:1 G (10.0-12.0%), iso-C_17:0 3-OH (12.4-13.9%), iso-C_15:0 3-OH (11.8-14.9%) and anteiso-C_15:0 (9.4-10.6%). The polar lipids consisted of phosphatidylethanolamine, an unidentified aminophospholipid, two to three unidentified aminolipids and three unidentified lipids. The comprehensive phylogenetic, genomic, phenotypic and chemotaxonomic results indicate that strains HL-DH10^T and HL-DH14 are considered to represent a novel genus of <i>Flavobacteriaceae</i>. Hence, we propose the novel genus <i>Thalassobellus suaedae</i> gen. nov., sp. nov. The type strain is HL-DH10^T (=KCCM 90512^T=JCM 36598^T).</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 2","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143407951","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":"International Committee on Systematics of Prokaryotes: minutes of the open plenary meeting, Tuesday, 22 October 2024, Sesto Fiorentino, Florence, Italy, and via Teams.","authors":"Aharon Oren","doi":"10.1099/ijsem.0.006621","DOIUrl":"10.1099/ijsem.0.006621","url":null,"abstract":"<p><p>A hybrid in-person and online open plenary meeting of the International Committee on Systematics of Prokaryotes (ICSP) was held on 22 October 2024 at the Consiglio Nazionale delle Ricerche, Sesto Fiorentino, Florence, Italy, and via Teams just prior to the IUMS 2024 Congress. To comply with Articles 4(d) and 5(d) (1) of the statutes of the ICSP, the minutes of this meeting are published here.</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":"142948907","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":"Genome-based reclassification of <i>Suonthocola fibrivorans</i> as a later heterotypic synonym of <i>Diplocloster agilis</i>.","authors":"Yu Chyuan Heng","doi":"10.1099/ijsem.0.006616","DOIUrl":"10.1099/ijsem.0.006616","url":null,"abstract":"<p><p>Both the genera <i>Suonthocola</i> and <i>Diplocloster</i> are members of the family <i>Lachnospiraceae</i>. Their type species, both <i>Suonthocola fibrivorans</i> Sanger_33^T and <i>Diplocloster agilis</i> ASD5720^T, were isolated from human faeces. A comparison of their 16S rRNA gene sequences revealed 100% similarity, suggesting their close relatedness and the possibility of belonging to the same species. To clarify their taxonomic relationship, genome-based analyses were carried out. Overall genomic relatedness indices analyses indicated that <i>S. fibrivorans</i> Sanger_33^T shared average amino acid identity and percentage of conserved proteins prediction values higher than the <i>Lachnospiraceae</i>-specific genus-level thresholds with <i>D. agilis</i> ASD5720^T, as well as the other two existing species of the genus <i>Diplocloster</i>. Additionally, <i>S. fibrivorans</i> Sanger_33^T formed a distinct branch with <i>D. agilis</i> ASD5720^T, clustering with the other two species of the genus <i>Diplocloster</i> into the same clade in both the 16S rRNA gene phylogenetic tree and the core-genome phylogenomic tree. Essentially, both the average nucleotide identity and digital DNA-DNA hybridization prediction values between <i>S. fibrivorans</i> Sanger_33^T and <i>D. agilis</i> ASD5720^T were above the recommended species boundaries. It is thus clear that <i>S. fibrivorans</i> Sanger_33^T and <i>D. agilis</i> ASD5720^T constitute the same species. On the basis of the earliest valid publication, priority is given to <i>D. agilis</i> Chaplin <i>et al</i>. 2022. Based on this, the orphan species <i>S. fibrivorans</i> Hitch <i>et al</i>. 2022 is reclassified as a later heterotypic synonym of <i>D. agilis</i> Chaplin <i>et al</i>. 2022, along with the reclassification of the genus <i>Suonthocola</i> Hitch <i>et al</i>. 2022 as a later synonym of <i>Diplocloster</i> Chaplin <i>et al</i>. 2022.</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":"142921791","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":"On the nomenclatural status of the prokaryotic name <i>Skermania piniformis</i> (Blackall <i>et al.</i> 1989) Chun <i>et al</i>. 1997. Request for an Opinion.","authors":"Meng-Syun Li","doi":"10.1099/ijsem.0.006659","DOIUrl":"10.1099/ijsem.0.006659","url":null,"abstract":"<p><p>In 1997, the name <i>Skermania piniformis</i> (Blackall <i>et al.</i> 1989) comb. nov. was proposed by Chun <i>et al.</i> on transfer of the species <i>Nocardia pinensis</i> to the newly established genus <i>Skermania</i> as its type species. The appearance of the epithet in <i>S. piniformis</i> was quite different from that in its basonym <i>N. pinensis.</i> This could be seen, at first glance, as an unnecessary epithet change that may render <i>S. piniformis</i> and its generic name <i>Skermania</i> illegitimate according to the International Code of Nomenclature of Prokaryotes (ICNP). But in this paper, the author argues that for this particular case, '<i>pinensis</i>' and '<i>piniformis</i>' are better treated as different spellings of the same epithet. And if so, the change from '<i>pinensis</i>' to '<i>piniformis</i>' will not give rise to a case of illegitimacy under Rule 41a of the ICNP. Several possible counterarguments are discussed, which are shown to be based on a misinterpretation of the ICNP, particularly in relation to Rule 20a. As this is a non-trivial issue, the author requests a final decision by the Judicial Commission according to Rule 58 of the ICNP. An additional request for clarifying Rule 54 is also made.</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":"143023465","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":"Description of six novel species <i>Bacillus bruguierae</i> sp. nov., <i>Bacillus kandeliae</i> sp. nov., <i>Bacillus yunxiaonensis</i> sp. nov., <i>Metabacillus rhizosphaerae</i> sp. nov., <i>Metabacillus sediminis</i> sp. nov. and <i>Psychrobacillus mangrovi</i> sp. nov., isolated from mangrove ecosystem.","authors":"Guo-Hong Liu, Manik Prabhu Narsing Rao, Huai Shi, Qian-Qian Chen, Syed Raziuddin Quadri, Wen-Jun Li","doi":"10.1099/ijsem.0.006656","DOIUrl":"10.1099/ijsem.0.006656","url":null,"abstract":"<p><p>Six Gram-stain-positive and rod-shaped strains, designated FJAT-51614^T, FJAT-51639^T, FJAT-52054^T, FJAT-52991^T, FJAT-53654^T and FJAT-53711^T, were isolated from a mangrove ecosystem. The condition for growth among the strains varied (pH ranging 5.0-11.0 and temperature 15-45 °C). These strains showed the highest 16S rRNA gene sequence similarity to the genera <i>Bacillus</i>, <i>Metabacillus</i> and <i>Psychrobacillus</i>. Menaquinone MK-7 (100%) was present in all strains except strain FJAT-51614^T, which contained MK-7 (32%) and MK-8 (68%). The major fatty acids (>10%) in strains FJAT-52054^T and FJAT-51614^T were anteiso-C_15 : 0 and iso-C_14 : 0. The major fatty acid (>10%) in strain FJAT-53654^T was anteiso-C_15 : 0, while in strain FJAT-51639^T were iso-C_15 : 0 and iso-C_17 : 0. The major fatty acids in strains FJAT-52991^T and FJAT-53711^T were iso-C_15 : 0 and iso-C_16 : 0. The major polar lipids in strains FJAT-51639^T, FJAT-52991^T and FJAT-51614^T were diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine, while strains FJAT-53711^T, FJAT-52054^T and FJAT-53654^T consist of diphosphatidylglycerol and phosphatidylglycerol. The genome-relatedness values among the present study strains and the closest species were below the recognized cutoff levels for species delineation. The polyphasic analysis comparison results represent six strains as novel species for which the names <i>Bacillus bruguierae</i> sp. nov. (FJAT-51639^T=GDMCC 1.3073^T=JCM 35615^T), <i>Bacillus kandeliae</i> sp. nov. (FJAT-52991^T=GDMCC 1.3069^T=JCM 35619^T), <i>Bacillus yunxiaonensis</i> sp. nov. (FJAT-53711^T=GDMCC 1.3068^T=JCM 35616^T), <i>Metabacillus rhizosphaerae</i> sp. nov. (FJAT-53654^T=GDMCC 1.3075^T=JCM 35614^T), <i>Metabacillus sediminis</i> sp. nov. (FJAT-52054^T=GDMCC 1.3074^T=JCM 35620^T) and <i>Psychrobacillus mangrovi</i> sp. nov. (FJAT-51614^T=GDMCC 1.3072^T=JCM35478^T) are 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":"143052473","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>Flavobacterium arundinis</i> sp. nov., <i>Flavobacterium calami</i> sp. nov., <i>Flavobacterium helocola</i> sp. nov. and <i>Flavobacterium flavipallidum</i> sp. nov., isolated from stagnant water in a clump of <i>Phragmites japonica</i> Steud.","authors":"Sunho Park, Inhyup Kim, Haejin Woo, Hyunji Lee, Subin Yook, Taegun Seo","doi":"10.1099/ijsem.0.006667","DOIUrl":"https://doi.org/10.1099/ijsem.0.006667","url":null,"abstract":"<p><p>Four novel bacterial strains were isolated from stagnant water in a clump of <i>Phragmites japonica</i> Steud. The four Gram-negative, facultatively anaerobic, rod-shaped, non-motile and yellow-coloured strains were designated as DGU11^T, DGU38^T, DGU41^T and DGU99^T. The four novel strains exhibited 16S rRNA gene similarities with their closest type strains, ranging from 95.7 to 98.7%, average nucleotide identity values from 75.3 to 95.6% and digital DNA-DNA hybridization values between 17.9 and 59.6%. The cells of strain DGU11^T were non-motile and grew at 10-30°C (optimum 25 °C), a pH range of 4.0-12.0 (optimum 9.0) and in the presence of 0-1.0% sodium chloride (NaCl) (optimum 0%). The cells of strain DGU38^T were non-motile and grew at 10-35°C (optimum 30 °C), a pH range of 4.0-8.0 (optimum 7.0) and at 0 -2.0% NaCl (optimum 0%). The cells of strain DGU41^T were non-motile and grew at 15-50°C (optimum 30 °C), a pH range of 6.0-9.0 (optimum 7.0) and in the presence of 0% NaCl (optimum 0%). The cells of strain DGU99^T were non-motile and grew at 15-35°C (optimum 25 °C), a pH range of 6.0-12.0 (optimum 9.0) and in the presence of 0 -2.0% NaCl (optimum 0%). The major fatty acid composition of the four novel strains was iso-C_15:0 and C_16:1 <i> ω7</i>c<i>/</i>C1_6:1 <i> ω6</i>c, which is similar to other <i>Flavobacterium</i> species. The proposed names of the novel strains are <i>Flavobacterium arundinis</i> sp. nov. (type strain DGU11^T=KACC 23722^T=TBRC 19004^T), <i>Flavobacterium calami</i> sp. nov. (type strain DGU38^T=KACC 23723^T=TBRC 19005^T), <i>Flavobacterium helocola</i> sp. nov. (type strain DGU41^T=KACC 23724^T=TBRC 19006^T) and <i>Flavobacterium flavipallidum</i> sp. nov. (type strain DGU99^T=KACC 23725^T=TBRC 19007^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":"143065692","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>Pseudomonas spirodelae,</i> sp. nov., a bacterium isolated from the roots of the aquatic plant <i>Spirodela polyrhiza</i>.","authors":"Karlie Vandeborne, Nathan Guy, George Lengyel, Jonathan Franks, Chris Maltman","doi":"10.1099/ijsem.0.006637","DOIUrl":"https://doi.org/10.1099/ijsem.0.006637","url":null,"abstract":"<p><p>A polyphasic taxonomic study was carried out on strain T5W1^T, isolated from the roots of the aquatic plant <i>Spirodela polyrhiza</i>. This isolate is Gram-negative, rod-shaped, motile, aerobic and non-pigmented. Nearly complete 16S rRNA gene sequence homology related the strain to <i>Pseudomonas</i>, with 98.4% similarity to <i>P. guineae</i>, <i>P. peli</i> and <i>P. leptonychotis</i>. Average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) with the closest phylogenetic neighbour of T5W1^T showed differences at the species level, further confirmed by differences in several physiological characteristics. The main fatty acids are summed feature 3 (C_16 : 1 <i> </i> _ω7c and/or C_16 : 1 <i> </i> _ω6c), C_18 : 1 <i> </i> _ω7c, and C_16 : 0. The DNA G+C content is 59.3 mol%. Q-9 is the primary ubiquinone found, and phosphatidylethanolamine is the dominant polar lipid, with lesser amounts of phosphatidylglycerol, diphosphatidylglycerol and phosphatidylserine. Based on the results obtained, this bacterium is assigned to the genus <i>Pseudomonas</i> as a new species with the name <i>Pseudomonas spirodelae</i> sp. nov., type strain T5W1^T (=NRRL B-65714^T =DSM 118085^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":"142962156","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":"Four novel nontuberculous mycobacteria species: <i>Mycobacterium wendilense</i> sp. nov., <i>Mycobacterium burgundiense</i> sp. nov., <i>Mycobacterium kokjensenii</i> sp. nov. and <i>Mycobacterium holstebronense</i> sp. nov. revived from a historical Danish strain collection.","authors":"Xenia Emilie Sinding Iversen, Erik Michael Rasmussen, Dorte Bek Folkvardsen, Erik Svensson, Conor J Meehan, René Jørgensen, Anders Norman, Troels Lillebaek","doi":"10.1099/ijsem.0.006620","DOIUrl":"https://doi.org/10.1099/ijsem.0.006620","url":null,"abstract":"<p><p>Four novel nontuberculous mycobacteria were discovered from a historical strain collection at the International Reference Laboratory of Mycobacteriology at Statens Serum Institut in Copenhagen, Denmark. Phylogenetic analysis combining the 16S <i>rrs</i>, internal transcribed spacer and 23S <i>rrl</i> elements, as well as a single-copy core-gene (<i>hsp65</i>, <i>rpoB+C</i>, <i>secA</i> and <i>tuf</i>) analysis of these freeze-dried mycobacteria, clinically isolated from gastric lavage samples between 1948 and 1955, showed to be associated with type strains grouping within the Terra and Fortuitum-Vaccae clade. Phenotypic characteristics, biochemical properties and fatty acid and mycolic acid profiles supported the classification as novel strains. A genomic comparison to the closest related type strain was done by calculating average nucleotide identity and <i>in silico</i> DNA:DNA hybridization values, which showed 87.9% and 33.0% for Mu0050, 85.2% and 27.4% for Mu0053, 85.3% and 27.6% for Mu0083 and 93.3% and 50.1% for Mu0102, respectively. The names proposed for the new species are <i>Mycobacterium wendilense</i> sp. nov. (Mu0050^T=ITM 501390^T=CCUG 77525^T), <i>Mycobacterium burgundiense</i> sp. nov. (Mu0053^T=ITM 501391^T=CCUG 77526^T), <i>Mycobacterium kokjensenii</i> sp. nov. (Mu0083^T=ITM 501392^T=CCUG 77527^T) and <i>Mycobacterium holstebronense</i> sp. nov. (Mu0102^T=ITM 501393^T=CCUG 77528^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":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11706282/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142948902","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":"Identification of <i>Starmerella aleppica</i> f.a., sp. nov. and large indels in the rRNA cistron that split the <i>Starmerella</i> genus.","authors":"Matthias Sipiczki, Abhishek Baghela","doi":"10.1099/ijsem.0.006629","DOIUrl":"10.1099/ijsem.0.006629","url":null,"abstract":"<p><p>Yeast strains representing a novel asexual ascomycetous species were isolated from seven <i>Malva sylvestris</i> flowers. Sequencing of the chromosomal regions coding for the D1/D2 domains of the large subunit ribosomal RNA, the ITS1-5.8S-ITS2 segments and parts of the gene coding for the small subunit ribosomal RNA showed that the isolates were conspecific. Comparative analysis of these sequences and the corresponding sequences of the type strains of ascomycetous yeasts revealed that the strains represent a hitherto undescribed species belonging to the <i>sensu stricto</i> subclade of the genus <i>Starmerella</i>. The new species is osmotolerant and can develop invasive pseudohyphae, but does not form spores. For the new species, the name <i>Starmerella aleppica</i> f.a. (forma asexualis) is proposed. The holotype, preserved in a metabolically inactive state, is CBS 12960^T (extype cultures: 2-1361 and CCY 90-2-1, NCAIM Y.02123). The GenBank accession numbers of barcode sequences are JX515983 (D1/D2 domain), JX515985 (ITS1-5.8S-ITS2 and partial 18S rRNA gene), PQ613837 (<i>TEF1</i> partial sequence) and PQ613838 (<i>RPB2</i> partial sequence). MycoBank: MB855459. The analysis of the D1/D2 and internal transcribed spacer (ITS) sequences of the type strains of species of the genus identified multiple multinucleotide indels that can be used as taxonomic markers (InDel markers). The indel patterns of the subclades are very different and homogeneous within the subclades. This result reinforces the idea raised, but also refuted, in previous studies that the <i>Starmerella</i> subclades may represent different genera.</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":"142948905","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":"Description of <i>Veillonella absiana</i> sp. nov., isolated from pig faeces.","authors":"Lu Bai, Jayoung Paek, Yeseul Shin, Hongik Kim, Si Hyun Kim, Jeong Hwan Shin, Joong-Ki Kook, Young-Hyo Chang","doi":"10.1099/ijsem.0.006643","DOIUrl":"https://doi.org/10.1099/ijsem.0.006643","url":null,"abstract":"<p><p>Two Gram-stain-negative cocci anaerobes were isolated from pig faeces and designated as strains YH-vei2232^T and YH-vei2233. Phylogenetic analysis using 16S rRNA gene sequences revealed that the isolates were most closely related to <i>Veillonella rogosae</i> KCTC 5967^T, with 97.0% similarity. Analysis of housekeeping gene sequences (<i>rpoB</i>) revealed the strain formed a sub-cluster within the genus <i>Veillonella</i>. The average nucleotide identities between the two isolates and the most closely related strains within genus <i>Veillonella</i> were <75.0%. The major fatty acids were Summed Feature 8 and C_16 : 1 <i> ω9</i>c. The cell wall peptidoglycan contained <i>meso</i>-diaminopimelic acid. The major metabolic end products of isolates were propionic and acetic acids. The genomic DNA G+C contents of both strains were 40.1 mol%. The chemotaxonomic, phenotypic and phylogenetic properties of YH-vei2232^T (=KCTC 25748^T=NBRC 116427^T) and YH-vei2233 (=KCTC 25749=NBRC 116428) suggest that they represent a novel species of the genus <i>Veillonella</i>, for which the name <i>Veillonella absiana</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":"142983547","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}