International journal of systematic and evolutionary microbiology最新文献

{"title":"<i>Tenacibaculum platacis</i> sp. nov., <i>Tenacibaculum vairaonense</i> sp. nov. and <i>Tenacibaculum polynesiense</i> sp. nov. isolated from batfish (<i>Platax orbicularis</i>) in Tahiti Island, French Polynesia.","authors":"Pierre Lopez, Benjamin Fradet, Lucie Coffion, Jean-François Bernardet, Denis Saulnier, Eric Duchaud","doi":"10.1099/ijsem.0.006605","DOIUrl":"https://doi.org/10.1099/ijsem.0.006605","url":null,"abstract":"<p><p>Ten novel Gram-negative, aerobic, non-sporulating, yellow-pigmented rod-shaped bacterial strains motile by gliding were isolated from marine organisms/environments in French Polynesia. Three of them designated as 190524A05c^T, 190524A02b^T and 190130A14a^T were retrieved from orbicular batfish (<i>Platax orbicularis</i>) mucus. Online database comparisons using 16S rRNA amplicons resulted in over 95% similarity to the genus <i>Tenacibaculum</i>. Phylogenetic analyses based on 679 concatenated core protein sequences revealed that strains 190524A05c^T, 190524A02b^T and 190130A14a^T showed the highest similarity to <i>Tenacibaculum skagerrakense</i> DSM 14836^T, <i>Tenacibaculum xiamenense</i> LMG 27422^T and <i>Tenacibaculum holothuriorum</i> S2-2^T, respectively. Digital DNA-DNA hybridization and average nt identity values between strains 190524A05c^T, 190524A02b^T and 190130A14a^T and other type strains were less than 76.25 and 24.1%, respectively. The DNA G+C content was 31.48, 30.66 and 31.98 mol% for strains 190524A05c^T, 190524A02b^T and 190130A14a^T, respectively. Menaquinone-6 was detected as the major isoprenoid quinone in these three strains. The major polar lipids (phosphatidylethanolamine and aminophospholipid) were similar to the chemotaxonomic profile of other species of the genus <i>Tenacibaculum</i>. Strain 190524A05c^T contained summed feature 3 (comprising C_16:1 ω7c and/or iso-C_15:0 2-OH), iso-C_15:1 G, iso-C_15:0 and iso-C_17:0 3-OH as the major cellular fatty acids. Strain 190524A02b^T contained summed feature 3 (comprising C_16:1 ω7c and/or iso-C_15:0 2-OH), iso-C_15:0, iso-C_15:1 G and iso-C_17:0 3-OH as the major cellular fatty acids. Strain 190130A14a^T contained iso-C_15:1 G, summed feature 3 (comprising C_16:1 ω7c and/or iso-C_15:0 2-OH), iso-C_15:0 and iso-C_17:0 3-OH as the major cellular fatty acids. Based on the phenotypic and molecular features, these three strains represent novel species of the genus <i>Tenacibaculum</i> for which the names <i>Tenacibaculum platacis</i> sp. nov., with 190524A05c^T (= CIP 112470^T = DSM 118113^T) as the type strain; <i>Tenacibaculum vairaonense</i> sp. nov., with 190524A02b^T (= CIP 112469^T = DSM 118112^T) as the type strain; and <i>Tenacibaculum polynesiense</i> sp. nov., with 190130A14a^T (= CIP 112468^T = DSM 118111^T) as the type strain, 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":"142931788","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>Tistrella arctica</i> sp. nov., isolated from the surface seawater of the Bering Sea and Chukchi Sea and emended description of the genus <i>Tistrella</i>.","authors":"Jinzhu Zhang, Jianning Wang, Qiliang Lai, Xiupian Liu, Guangyu Li, Panyi Pan, Ziyuan He, Zongze Shao, Chunming Dong","doi":"10.1099/ijsem.0.006627","DOIUrl":"https://doi.org/10.1099/ijsem.0.006627","url":null,"abstract":"<p><p>Two Gram-stain-negative, motile, non-spore-forming, aerobic or facultative anaerobic and short rod-shaped bacterial strains, 25B02-3^T and BH-R2-4, were isolated from surface seawater collected from the Bering Sea and Chukchi Sea, respectively. The 16S rRNA gene sequences of the two strains were identical. The phylogenetic analysis of the 16S rRNA gene sequences indicated that they were related to the genus <i>Tistrella</i> and shared 99.6 and 98.2% sequence similarity with <i>T. bauzanensis</i> BZ78^T and <i>T. mobilis</i> IAM 14872^T, respectively. Both 16S rRNA gene and genome sequence-based phylogenetic analyses showed that the two strains formed a monophyletic clade within the genus <i>Tistrella</i>, indicating that they may represent a novel species. The digital DNA‒DNA hybridization (dDDH) values and average nucleotide identities (ANI) between the two strains were 93 and 99%, respectively, indicating that they are different strains. The dDDH and ANI values between the two strains and the type strains of the genus <i>Tistrella</i> were 22.4-58.3% and 81.0-95.0%, respectively. These data clearly demonstrated that the two strains represent a separate genomic species of the genus <i>Tistrella</i>. The principal fatty acids were Sum In Feature 8 (C_{18 : 1} <i>ω7</i>c or C_{18 : 1} <i>ω6</i>c), C_{19 : 0} cyclo <i>ω</i>8<i>c</i>, Sum In Feature 2 (C_{12 : 0} aldehyde or unknown 10.928) and C_{16 : 0}. The predominant respiratory quinone was Q-10, with a minor Q-9. The polar lipids included phosphatidylethanolamine, aminolipids and phospholipids. The genomic DNA G+C contents of strains 25B02-3^T and BH-R2-4 were 67.3 mol% and 67.4 mol%, respectively. On the basis of the polyphasic evidence presented in this study, the two strains represent a novel species within the genus <i>Tistrella</i>, for which the name <i>Tistrella arctica</i> sp. nov. is proposed. The type strain is 25B02-3^T (=MCCC 1A07333^T=KCTC 8340^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":"142931792","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>Leptospira gorisiae</i> sp. nov, <i>L</i>. <i>cinconiae</i> sp. nov, <i>L</i>. <i>mgodei</i> sp. nov, <i>L</i>. <i>milleri</i> sp. nov and <i>L</i>. <i>iowaensis</i> sp. nov: five new species isolated from water sources in the Midwestern United States.","authors":"Camila Hamond, Bienvenido Tibbs-Cortes, Luis G V Fernandes, Karen LeCount, Ellie J Putz, Tammy Anderson, Patrick Camp, Tod Stuber, Jessica Hicks, Hans van der Linden, Priscyla Dos Santos Ribeiro, Darrell O Bayles, Linda K Schlater, Jarlath E Nally","doi":"10.1099/ijsem.0.006595","DOIUrl":"https://doi.org/10.1099/ijsem.0.006595","url":null,"abstract":"<p><p>Isolates of <i>Leptospira</i> spp. were cultured from water sources at five different sites in central Iowa in the Midwestern United States and characterized by whole-genome sequencing. Isolates were helix-shaped and motile. Genome sequence analyses determined that the isolates could be clearly distinguished from other species described in the genus <i>Leptospir</i>a and included one species that belonged to the pathogen subclade P1, one species that belonged to the pathogen subclade P2 and three species that belonged to the saprophyte subclade S1. The names <i>Leptospira gorisiae</i> sp. nov. (type strain WS92.C1^T=NVSL-WS92.C1^T=KIT0303^T), <i>Leptospira cinconiae</i> sp. nov. (type strain WS58.C1^T=NVSL-WS58.C1^T=KIT0304^T), <i>Leptospira mgodei</i> sp. nov. (type strain WS4.C2^T=NVSL.WS4.C2^T=KIT0305^T), <i>Leptospira iowaensis</i> sp. nov. (type strain WS39.C2^T=NVSL-WS39.C2^T=KIT0306^T) and <i>Leptospira milleri</i> sp. nov. (type strain WS60.C2^T=NVSL-WS60.C2^T=KIT0307^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":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11706286/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142948709","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":"International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of <i>Chlamydiae</i>: minutes of the closed meeting, Zoom meeting, 24 September 2024.","authors":"Nicole Borel, Gilbert Greub, For The Icsp Subcommittee On The Taxonomy Of","doi":"10.1099/ijsem.0.006670","DOIUrl":"https://doi.org/10.1099/ijsem.0.006670","url":null,"abstract":"<p><p>Subcommittee on the taxonomy of <i>Chlamydiae</i>: minutes of the closed meeting, Zoom meeting, 24 September 2024.</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":"143059004","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>Chryseobacterium salviniae</i> sp. nov., a bacterium isolated from the roots of the aquatic plant <i>Salvinia minima</i>.","authors":"Katelyn Sparks, Nathan Guy, George Lengyel, Jonathan Franks, Chris Maltman","doi":"10.1099/ijsem.0.006644","DOIUrl":"https://doi.org/10.1099/ijsem.0.006644","url":null,"abstract":"<p><p>A polyphasic taxonomic study was carried out on strain T9W2-O^T, isolated from the roots of the aquatic plant <i>Salvinia minima</i>. This isolate is rod-shaped, forms yellow/orange pigmented colonies and produces the pigment flexirubin. Nearly complete 16S rRNA gene sequence homology related the strain to <i>Chryseobacterium</i>, with 98.8 and 98.5% similarity to <i>Chryseobacterium profundimaris</i> and <i>Chryseobacterium takakiae</i>, respectively. Average nucleotide identity and digital DNA-DNA hybridization with the closest phylogenetic neighbour of T9W2-O^T showed differences at the species level, further confirmed by differences in several physiological characteristics. The main fatty acids are iso C_{15 : 0}, iso C_{17:1 ω9c}, iso C_{17 : 0} 3-OH and summed feature 4 (iso-C_{15 : 0} 2-OH and/or C_{16:1 ω7c}). DNA G+C content is 37.2 mol%. MK-6 is the only menaquinone found, and phosphatidylethanolamine is the dominant polar lipid. Based on the results obtained, this bacterium is assigned to the genus <i>Chryseobacterium</i> as a new species with the name <i>Chryseobacterium salviniae</i> sp. nov., type strain T9W2-O^T (=NRRL B-65715^T =DSM 118061^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":"143055906","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>Pseudobensingtonia carpini</i> sp. nov., a novel yeast species isolated from plant leaves in China.","authors":"Chun-Yue Chai, Bing-Yan Song, Dan Lu, Cai-Ying Zhang, Feng-Li Hui","doi":"10.1099/ijsem.0.006642","DOIUrl":"https://doi.org/10.1099/ijsem.0.006642","url":null,"abstract":"<p><p>Two novel yeast strains, NYNU 236247 and NYNU 23523, were isolated from the leaves of <i>Carpinus turczaninowii</i> Hance, collected in the Tianchi Mountain National Forest Park, Henan Province, central China. Phylogenetic analysis of the D1/D2 domain of the large subunit rRNA gene and the internal transcribed spacer (ITS) region revealed the closest relatives of the strains are three described <i>Pseudobensingtonia</i> species: <i>Ps. fusiformis</i>, <i>Ps. musae</i> and <i>Ps. ingoldii</i>. The novel species differed from the type strains of these three species by 12 to 22 nucleotide substitutions and 1 gap (~2.0-4.0%) in the D1/D2 domain and by 78 to 100 nucleotide mismatches (~12.0-16%) in the ITS region. Physiologically, the novel species differs from <i>Ps. fusiformis</i> and <i>Ps. musae</i> in its ability to assimilate dl-lactate and melezitose and from <i>Ps. ingoldii</i> by its inability to assimilate melibiose, soluble starch and ethanol. <i>Pseudobensingtonia carpini</i> sp. nov. is proposed for those two strains, with the holotype designated as GDMCC 2.483^T (MycoBank MB 857072).</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":"142970861","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 retamae</i> sp. nov., a novel endophytic bacterium with plant growth-promoting potential, isolated from root nodules of <i>Retama monosperma</i> in Northwestern Algeria.","authors":"Nawel Selami, Fatima El-Houaria Zitouni-Haouar, Chahira Zerouki, Chahrazed Aibeche, Nassima Draou, Omar Khelil, Slimane Choubane, Makaoui Maatallah, Ikram Madani, Khadidja Ouenzar, Assia Zemmour, Mohamed Kerkoud, Bacem Mnasri, Bouziane Moumen, Cécile Vriet, Abderrezak Djabeur","doi":"10.1099/ijsem.0.006646","DOIUrl":"https://doi.org/10.1099/ijsem.0.006646","url":null,"abstract":"<p><p>A thorough polyphasic taxonomic study, integrating genome-based taxonomic approaches, was carried out to characterize the RB5^T strain isolated from root nodules of <i>Retama monosperma</i> growing on the coastal dunes of Bousfer Beach (Oran, Algeria). The 16S rRNA gene sequence analysis revealed that strain RB5^T had the highest similarity to <i>Pseudomonas granadensis</i> LMG27940^T (98.94%) and <i>Pseudomonas gozinkensis</i> IzPS32d^T (98.73%). Phylogenetic studies, including both 16S rRNA gene sequence and multilocus sequence analysis using 16S <i>rRNA</i>, <i>gyrB</i> and <i>rpoD</i> housekeeping genes, positioned RB5^T in a distinct branch alongside its closest relative, <i>P. granadensis</i> LMG27940^T. Phylogenomic analysis using the Bac120 marker set and Type (Strain) Genome Server confirmed the unique position of RB5^T and its close relationship with <i>P. granadensis</i> LMG27940^T. Similarly, genomic comparisons using average nucleotide identity based on blast (ANIb) and digital DNA-DNA hybridization (dDDH) revealed values of 92.85 and 59.3%, respectively, when compared with its closest relative, <i>P. granadensis</i> LMG27940^T. Both values fall below the established species delimitation thresholds of 95-96% for ANIb and 70% for dDDH, providing strong genomic evidence that strain RB5^T represents a novel species. Further average nucleotide identity comparisons with unclassified <i>Pseudomonas</i> spp. (384 genomes) and metagenomic-derived genomes from the Genome Taxonomy Database (GTDB) showed values between 84.27 and 89.2%, indicating that strain RB5^T belongs to a unique evolutionary line. The genome of RB5^T, with a size of 6 311 310 bp and a G+C content of 60%, harbours several key genes associated with plant growth-promoting traits, making it a promising candidate for sustainable agriculture. Phenotypically, RB5^T strain is an aerobic, rod-shaped, Gram-negative, non-spore-forming bacterium that is motile with a single polar flagellum. It grows under a wide range of temperature (4-42 °C) and pH (5-10) conditions and tolerates up to 6% (w/v) NaCl. The main cellular fatty acid composition of RB5^T includes C_16:0, C_17:0 cyclo and the summed features 3 consisting of C_16:1 ω7c/_C16:1 ω6c. Based on the phylogenetic, phenotypic, chemotaxonomic and genome comparison analyses, strain RB5^T was identified as a novel species of the genus <i>Pseudomonas</i>, for which the name <i>Pseudomonas retamae</i> sp. nov. is proposed. The type strain is RB5^T (=DSM 117471^T=LMG 33633^T=CIP 112482^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":"142983524","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":"Emendation of Recommendation 6(7), Rule 64 and Appendix 9 Section D of the International Code of Nomenclature of Prokaryotes to regulate the formation of prokaryote names from personal names.","authors":"Aharon Oren","doi":"10.1099/ijsem.0.006626","DOIUrl":"10.1099/ijsem.0.006626","url":null,"abstract":"<p><p>Following a proposal to emend Recommendation 6(7), Rule 64 and Appendix 9, Section D of the International Code of Nomenclature of Prokaryotes to regulate the formation of prokaryote names from personal names, I hereby report the outcome of the ballot on this proposal by the members of the International Committee on Systematics of Prokaryotes.</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":"142921789","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>Dyella aluminiiresistens</i> sp. nov., a Al³⁺-tolerant bacterium with the ability to inhibit <i>Fusarium oxysporum</i> f. sp. <i>melonis</i> isolated from rhizosphere soil of muskmelon.","authors":"Yi Li, Jiaojiao Wang, Chunyuan Wu, Jian He, Qinfen Li, Xiao Deng, Huadong Tan","doi":"10.1099/ijsem.0.006611","DOIUrl":"10.1099/ijsem.0.006611","url":null,"abstract":"<p><p>A bacterial strain, designated as A6^T, was isolated from the rhizosphere soil of a healthy muskmelon in Wenchang, Hainan Province, China. The cells of strain A6^T were Gram-negative, aerobic, short rod and motile with a single polar flagellum. Strain A6^T could tolerate up to 55.0 mM Al³⁺ and inhibited the growth of <i>Fusarium oxysporum</i> f. sp. <i>melonis,</i> which is the pathogen of muskmelon <i>Fusarium wilt</i>. Growth occurred at 15-37 ℃ (optimum at 30 ℃), pH 4.5-8.0 (optimum pH 6.5) and with 0-3.0 % NaCl (w/v; optimum, 0.5%). Strain A6^T shared the highest 16S rRNA gene sequence similarities with <i>Dyella lutea</i> Sa^T (98.0%), followed by <i>Dyella thiooxydans</i> ATSB10^T (98.0%), <i>Frateuria edaphi</i> 5GH9-34^T (97.9%), <i>Dyella nitratireducens</i> DHG59^T (97.7%), <i>Frateuria defendens</i> DHo^T (97.7%) and <i>Frateuria soli</i> 5GH9-11^T (97.7%). Phylogenetic trees based on 16S rRNA gene and genomic sequences indicated that strain A6^T belonged to the genus <i>Dyella</i> and formed a subclade with <i>Dyella lutea</i> Sa^T and <i>Dyella thiooxydans</i> ATSB10^T. The average nucleotide identity (ANI), average amino acid identity (AAI) and digital DNA-DNA hybridization (dDDH) values between A6^T and its closely related type strains were 78.8-80.8 %, 70.0-71.7 % and 20.5-22.1 %, respectively. The sole respiratory quinone was ubiquinone-8 (Q-8). The polar lipid profile consisted of diphosphatidylglycerol (DPG), phosphatidylglycerol (PG), phosphatidylethanolamine (PE), two unidentified aminophospholipids (APL1-2) and three unidentified phospholipids (PL1-3). The major cellular fatty acids (≥5 %) were iso-C_17 : 0, C_16 : 0, summed feature 9 (iso-C_17 : 1  <i>ω</i>9<i>c</i> and/or C_16 : 0 10-methyl), iso-C_15 : 0, iso-C_16 : 0 and anteiso-C_17 : 0. The genome size of strain A6^T was 3.7 Mb with a DNA G+C content of 65.1%. Based on the phenotypic, phylogenetic, genotypic and chemotaxonomic features, strain A6^T represents a novel species in the genus <i>Dyella</i>, for which <i>Dyella aluminiiresistens</i> A6^T sp. nov. is proposed. The type strain is A6^T (= GDMCC 1.4640^T = KCTC 92542^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":"142931781","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 aerium</i> sp. nov., a bacterium isolated from the air of the Icelandic volcanic island Surtsey.","authors":"Aurélien Daussin, Pauline Vannier, Marine Ménager, Émilien Mater, Viggó Þór Marteinsson","doi":"10.1099/ijsem.0.006647","DOIUrl":"10.1099/ijsem.0.006647","url":null,"abstract":"<p><p>A novel bacterium, designated 19SA41, was isolated from the air of the Icelandic volcanic island Surtsey. Cells of strain 19SA41 are Gram-stain-negative, strictly aerobic, non-motile rods and form pale yellow-pigmented colonies. The strain grows at 4-30 °C (optimum, 22 °C), at pH 6-10 (optimum, pH 7.5) and with 0-4% NaCl (optimum, 0.5%). Phylogenetic analyses based on 16S rRNA gene sequences showed that 19SA41 belonged to the genus <i>Flavobacterium</i> and is most similar to <i>Flavobacterium xinjiangense</i> DSM 19743^T, with a sequence similarity of 96.52%. The new strain contained iso-C_15 : 0 (22%) and summed feature 3 (C_16∶1ω6c/C_16∶1ω7c) (20%) as the predominant fatty acids. The major respiratory quinone was menaquinone-6 (100%). The polar lipid profile consisted of phosphatidylethanolamine and several uncharacterized amino lipids, glycolipids and lipids. The genome of the new strain was 4.01 Mbp, and its G+C content was 33.2 mol%. Based on characterization and comparative results, using a polyphasic taxonomic approach, we propose that the new isolate represents a novel species of the genus <i>Flavobacterium</i> with the name <i>Flavobacterium aerium</i> sp. nov. The type strain is ISCaR-07695^T (=DSM 116640^T =UBOOC-M-3567^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/PMC11756700/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143023405","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}