International journal of systematic and evolutionary microbiology最新文献

{"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>Pseudonocardia spirodelae</i> sp. nov., isolated from duckweed and formal proposal to reclassify <i>Pseudonocardia antarctica</i> as a later heterotypic synonym of <i>Pseudonocardia alni</i> and reclassify <i>Pseudonocardia carboxydivorans</i> as <i>Pseudonocardia alni</i> subsp. <i>carboxydivorans</i>.","authors":"Waranya Butdee, Yuparat Saimee, Chanwit Suriyachadkun, Kannika Duangmal","doi":"10.1099/ijsem.0.006608","DOIUrl":"10.1099/ijsem.0.006608","url":null,"abstract":"<p><p>A novel <i>Pseudonocardia</i> strain DW16-2^T, isolated from duckweed (<i>Spirodela polyrhiza</i>), was taxonomically studied in detail. The analysis based on its 16S rRNA gene sequence revealed that the strain was most closely related to <i>Pseudonocardia carboxydivorans</i> Y8^T (98.8%), followed by <i>Pseudonocardia tropica</i> YIM 61452^T (98.7%), <i>Pseudonocardia antarctica</i> DVS 5a1^T (98.7%) and <i>Pseudonocardia alni</i> DSM 44104^T (98.7%). The average nucleotide identity (ANI) based on blast and digital DNA-DNA hybridization (dDDH) relatedness values between strain DW16-2^T and their closest type strains were below the threshold values for identifying a novel species. Morphological, physiological and chemotaxonomic features of strain DW16-2^T were typical for the genus <i>Pseudonocardia</i> by forming extensively branched substrate mycelium and aerial mycelium that fragmented into rod-shaped spore, with a smooth surface. The whole-cell hydrolysates of strain DW16-2^T contained <i>meso</i>-diaminopimelic acid as the diagnostic diamino acid, and the whole-cell sugars were arabinose, galactose, glucose and a trace amount of ribose. The polar lipids contained phosphatidylethanolamine, phosphatidylcholine, phosphatidylglycerol and unidentified phospholipids. The menaquinone (MK) was MK-8(H₄). The cellular fatty acids (>5 %) were <i>iso</i>-C_16 : 0, <i>iso</i>-C_16 : 1 H, summed feature 3: C_16 : 1 ω7c/C_16 : 1 ω6c; C_16 : 1 ω6c/C_16 : 1 ω7c, C_17 : 1 ω8c and <i>anteiso</i>-C_17 : 0. Characterization based on chemotaxonomic, phenotypic, genotypic and phylogenetic evidence demonstrated that strain DW16-2^T represents a novel species of the genus <i>Pseudonocardia</i>, for which the name <i>Pseudonocardia spirodelae</i> sp. nov. (type strain DW16-2^T = TBRC 16418^T = NBRC 115857^T) is proprosed. In addition, the comparison of the whole genome sequences suggested that <i>P. alni</i> and <i>P. antarctica</i> belong to the same species and <i>P. carboxydivorans</i> is a subspecies of <i>P. alni</i>. Therefore, it is proposed that <i>P. antarctica</i> Prabahar <i>et al</i>. 2004 is reclassified as a later heterotypic synonym of <i>P. alni</i> (Evtushenko <i>et al</i>. 1989) Warwick <i>et al</i>. 1994, and <i>P. carboxydivorans</i> Park <i>et al</i>. 2008 is proposed as a subspecies of <i>P. alni</i> (Evtushenko <i>et al</i>. 1989) Warwick <i>et al</i>. 1994.</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":"142921785","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":"142921793","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>Desulfosporosinus paludis</i> sp. nov., an acidotolerant sulphate-reducing bacterium isolated from moderately acidic fen soil.","authors":"Stefan Dyksma, Meina Neumann-Schaal, Mathias Müsken, Michael Pester","doi":"10.1099/ijsem.0.006648","DOIUrl":"10.1099/ijsem.0.006648","url":null,"abstract":"<p><p>An obligately anaerobic, spore-forming sulphate-reducing bacterium, strain SB140^T, was isolated from a long-term continuous enrichment culture that was inoculated with peat soil from an acidic fen. Cells were immotile, slightly curved rods that stained Gram-negative. The optimum temperature for growth was 28 °C. Strain SB140^T grew at pH 4.0-7.5 with an optimum pH of 6.0-7.0 using various electron donors and electron acceptors. Yeast extract, sugars, alcohols and organic acids were used as electron donors for sulphate reduction. SB140^T additionally used elemental sulphur and nitrate as electron acceptors but not sulphite, thiosulphate or iron(III) provided as ferrihydrite and fumarate. The 16S rRNA gene sequence placed strain SB140^T in the genus <i>Desulfosporosinus</i> of the phylum <i>Bacillota</i>. The predominant cellular fatty acids were iso-C_15 : 0 (52.6%) and 5,7 C_15 : 2 (19.9%). The draft genome of SB140^T (5.42 Mbp in size) shared 77.4% average nucleotide identity with the closest cultured relatives <i>Desulfosporosinus acididurans</i> M1^T and <i>Desulfosporosinus acidiphilus</i> SJ4^T. On the basis of phenotypic, phylogenetic and genomic characteristics, SB140^T was identified as a novel species within the genus <i>Desulfosporosinus</i>, for which we propose the name <i>Desulfosporosinus paludis</i> sp. nov. The type strain is SB140^T (=DSM 117342^T=JCM 39521^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/PMC11771766/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143052531","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":"Preparing the 2025 revision of the International Code of Nomenclature of Prokaryotes.","authors":"Aharon Oren, David R Arahal, Henrik Christensen, Markus Göker, Célia M Manaia, Edward R B Moore","doi":"10.1099/ijsem.0.006666","DOIUrl":"10.1099/ijsem.0.006666","url":null,"abstract":"<p><p>The editorial Board of the <i>International Code of Nomenclature of Prokaryotes</i> (ICNP) - the Prokaryotic Code - has compiled already ratified proposed emendations of the ICNP, together with additional editorial changes and clarifications. These were implemented in a draft 2025 revision of the <i>Prokaryotic Code</i>. To comply with Articles 13(b)(4) and 4(d) of the statutes of the International Committee on Systematics of Prokaryotes (ICSP), a public discussion of the document will start on 1 January (or later if required) 2025, to last for 6 months. Here, we present the basis for the revision and the procedure for the discussion. The discussion will be followed by the balloting of the ICSP members.</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":"143059005","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>Scrofimicrobium appendicitidis</i> sp. nov., isolated from a patient with ruptured appendicitis.","authors":"Hiu-Yin Lao, Annette Y P Wong, Timothy Ting-Leung Ng, Ryan Yik-Lam Wong, Miranda Chong-Yee Yau, Jimmy Yiu-Wing Lam, Gilman Kit-Hang Siu","doi":"10.1099/ijsem.0.006633","DOIUrl":"https://doi.org/10.1099/ijsem.0.006633","url":null,"abstract":"<p><p>A clinical isolate, R131, was isolated from the peritoneal swab of a patient who suffered from ruptured appendicitis with abscess and gangrene in Hong Kong in 2018. Cells are facultatively anaerobic, non-motile, Gram-positive coccobacilli. Colonies were small, grey, semi-translucent, low convex and alpha-haemolytic. The bacterium grew on blood agar but not on Brain Heart Infusion (BHI) and Mueller-Hinton agars. It was negative for catalase, oxidase, indole and aesculin hydrolysis. The initial identification attempts via matrix-assisted laser desorption ionization-time of flight mass spectrometry and 16S rRNA gene sequencing yielded inconclusive results. The 16S rRNA gene analysis showed that R131 shared >99% nucleotide identity with certain uncultured <i>Actinomycetales</i> bacteria. In this retrospective investigation, a complete genome of R131 was constructed, disclosing a DNA G+C content of 64%. Phylogenetic analysis showed that the bacterium was mostly related to <i>Scrofimicrobium canadense</i> WB03_NA08, which was first described in 2020. However, its 16S rRNA gene shared only 94.15% nucleotide identity with that of <i>S. canadense</i> WB03_NA08. Notably, the orthoANI between R131 and <i>S. canadense</i> WB03_NA08 was 67.81%. A pan-genome analysis encompassing R131 and 4 <i>Scrofimicrobium</i> genomes showed 986 core gene clusters shared with the <i>Scrofimicrobium</i> species, along with 601 cloud genes. The average nucleotide identity comparisons within the pan-genome analysis ranged from 59.78 to 62.51% between R131 and the other <i>Scrofimicrobium</i> species. Correspondingly, the dDDH values ranged from 19.20 to 22.30%, while the POCP values spanned from 57.48 to 60.94%. Therefore, a novel species, <i>Scrofimicrobium appendicitidis</i> sp. nov., is proposed. The type strain is R131^T (=JCM 36615^T=LMG 33627^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":"143004721","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>Paenibacillus zeirhizosphaerae</i> sp. nov., isolated from surface of the maize (<i>Zea mays</i>) roots in a horticulture field, Hungary.","authors":"Dalma Márton, Milán Farkas, Anna Bedics, Erika Tóth, András Táncsics, Károly Bóka, Gergely Maróti, Erzsébet Baka, Balázs Kriszt, Mátyás Cserháti","doi":"10.1099/ijsem.0.006628","DOIUrl":"https://doi.org/10.1099/ijsem.0.006628","url":null,"abstract":"<p><p>A novel Gram-stain-positive, rod-shaped, endospore-forming bacterium with peritrichous flagella, designated as P96^T was isolated from the surface of maize roots. Strain P96^T grew optimally at 28 °C, pH 7.0. The strain contained A1γ <i>meso</i>-Dpm-direct in the cell-wall peptidoglycan. The dominant polar lipids were diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylglycerol. The genome size of strain P96^T was 4.8 Mb, and the G+C content was 50.01%. Phylogenomic analyses based on the whole-genome sequences classified the strain into the genus <i>Paenibacillus</i>. The digital DNA-DNA hybridization and average nucleotide identity relatedness analysis resulted in values below the threshold for prokaryotic species delineation, with the highest values observed for <i>Paenibacillus enshidis</i> KCTC 33519^T (29.4 and 85.2%, respectively). Genotypic data together with phenotypic properties supported the classification of strain P96^T as representative of a novel species of the genus <i>Paenibacillus</i>, for which the name <i>Paenibacillus zeirhizosphaerae</i> sp. nov. is proposed. The type strain is P96^T (=LMG 32802^T = NCAIM B 02678^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":"142948663","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 fungipugnans</i> sp. nov., a potently antifungal bacterium isolated from moss.","authors":"Anya Schnyder, Ratchara Kalawong, Leo Eberl, Kirsty Agnoli","doi":"10.1099/ijsem.0.006624","DOIUrl":"https://doi.org/10.1099/ijsem.0.006624","url":null,"abstract":"<p><p>A novel strain, 681, was isolated from a moss sample taken from the Chrutzelried woods in Canton Zürich, Switzerland. The strain showed potent activity against several fungi and oomycetes. It was affiliated to the <i>Pseudomonas</i> genus by 16S rRNA gene sequence phylogeny. Genome sequencing showed a G+C content of 59.9 mol%. The highest average nucleotide identity was 86.63%, and the highest digital DNA-DNA hybridization value was 32.2% (with <i>Pseudomonas nunensis</i> ln5), considerably below the thresholds for species delineation. Multi-locus phylogeny using 81 concatenated sequences indicated that the strain represented a new species within the <i>Pseudomonas mandelii</i> subgroup. This study details its characterization as a new species. The 681 genome was screened <i>in silico</i> using antiSMASH to reveal candidate secondary metabolite clusters for the strong antifungal activity exhibited by 681. Of the 15 clusters identified, we disrupted the seven best and tested for activity against <i>Fusarium solani</i>. The pyrrolnitrin, rhizoxin, novel PKS-NRPS and acaterin gene clusters contributed significantly to the observed antifungal activity. Phenotypic analyses found that strain 681 cells were aerobic, Gram-negative, motile rods (mean length 2.60 µm and mean width of 0.67 µm) with one to three polar flagella. Optimal growth was at 30 °C, but growth also occurred at 8 °C. The pH range was 6-7, with some growth at pH 8. Robust growth occurred at 0-3% (w/v) NaCl and weak growth at 4% (w/v) NaCl, with the optimum at 1% (w/v) NaCl. Strain 681 was oxidase positive, hydrolysed arginine under anaerobic conditions, showed intense fluorescence on King's medium B and produced a hypersensitive response in tobacco leaves. Following our investigations, we propose the designation <i>Pseudomonas fungipugnans</i> sp. nov. for this new species. The type strain, 681, is available from the DSMZ and LMG/BCCM culture collections under the designations DSM 115721 and LMG 33039, 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":"142948737","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>Jannaschia maritima</i> sp. nov., a novel marine bacterium isolated from the biofilm of concrete breakwater structures.","authors":"Hao Feng, Shuyi Liang, Ruisi Li, Hui Wang, Runlin Cai","doi":"10.1099/ijsem.0.006645","DOIUrl":"https://doi.org/10.1099/ijsem.0.006645","url":null,"abstract":"<p><p>Marine biofilms were newly revealed as a bank of hidden microbial diversity and functional potential. In this study, a Gram-stain-negative, aerobic, oval and non-motile bacterium, designated LMIT008^T, was isolated from the biofilm of concrete breakwater structures located in the coastal area of Shantou, PR China. Strain LMIT008^T was found to grow at salinities of 1-7% NaCl, at pH 5-8 and at temperatures 10-40 °C. Phylogenetic analysis based on 16S rRNA gene sequence indicated that strain LMIT008^T belonged to the genus <i>Jannaschia</i> and was closely related to the type strains <i>Jannaschia aquimarina</i> KCTC23555^T (96.03%) and <i>Jannaschia marina</i> SHC-163^T (95.31%). The draft genome size of the strain LMIT008^T was 3.67 Mbp, and the genomic DNA G+C content was 69.83 mol%. The average nucleotide identity value between strain LMIT008^T and the closely related type strain <i>J. aquimarina</i> KCTC23555^T was 74.82%. The predominant cellular fatty acids were identified as summed feature 8 (C_18 : 1 <i> ω</i>7<i>c</i>/C_18 : 1 <i> ω</i>6<i>c</i>) and C_18 : 0, and the major polar lipids were phosphatidylethanolamine, phosphatidylglycerol and phosphatidylcholine. Ubiquinone-10 (Q-10) is the sole respiratory quinone. Further, genomic analysis of strain LMIT008^T showed that the strain harbours abundant genes associated with biofilm formation and environmental adaption, explaining the potential strategies for living on concrete breakwater structures. Based on the morphological, phylogenetic, chemotaxonomic and phenotypic characterization, the strain LMIT008^T was considered to represent a novel species in the genus of <i>Jannaschia</i>, for which the name <i>Jannaschia maritima</i> sp. nov. was proposed, with LMIT008^T (=MCCC 1K08854^T=KCTC 8321^T) as the type strain.</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":"143005467","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}