Rui-Qi Sun, Wen-Xia Dong, Jia-Hui Zeng, Hua-Mei Wei, Lian Xu, Ji-Quan Sun
{"title":"<i>Novosphingobium rhizovicinum</i> sp. nov. and <i>Novosphingobium kalidii</i> sp. nov., two novel species isolated from rhizosphere soil and a root of halophyte <i>Kalidium cuspidatum</i>.","authors":"Rui-Qi Sun, Wen-Xia Dong, Jia-Hui Zeng, Hua-Mei Wei, Lian Xu, Ji-Quan Sun","doi":"10.1099/ijsem.0.006710","DOIUrl":"10.1099/ijsem.0.006710","url":null,"abstract":"<p><p>Two bacteria, designated strain M1R2S20<sup>T</sup> and RD2P27<sup>T</sup>, were isolated from rhizosphere soil and a root of <i>Kalidium cuspidatum</i> in Baotou, Inner Mongolia, China. Phylogenetic analyses based on the 16S rRNA gene sequences revealed that strains M1R2S20<sup>T</sup> and RD2P27<sup>T</sup> were tightly clustered and both shared the highest 16S rRNA gene similarities (98.6 and 98.5 %) to <i>Novosphingobium fluoreni</i> ACCC 19180<sup>T</sup> and less than 97.8% similarities with all other current type strains. Values of the digital DNA-DNA hybridization (dDDH), the average nucleotide identity based on the blast method (ANIb) and the average amino acid identity (AAI) of the two strains and their closely related species were 32.2, 79.0, and 84.5%, which were lower than the threshold values (70% for dDDH, 95% for ANIb and 95% for AAI). The major fatty acids of strains M1R2S20<sup>T</sup> and RD2P27<sup>T</sup> were C<sub>18 : 1</sub> <i> ω7</i>c and summed feature 3 (C<sub>16 : 1</sub> <i> ω6</i>c and/or C<sub>16 : 1</sub> <i> ω7</i>c). The only quinone was ubiquinone-10. Spermidine was the predominant polyamine. The genomic DNA G+C contents for strain M1R2S20<sup>T</sup> and RD2P27<sup>T</sup> were 62.4 and 62.7%. The phenotypic, chemotaxonomic and phylogenetic results supported that strains M1R2S20<sup>T</sup> and RD2P27<sup>T</sup> could be identified as two novel species within the genus <i>Novosphingobium</i>, for which the name <i>Novosphingobium rhizovicinum</i> sp. nov. and <i>Novosphingobium kalidii</i> sp. nov. are proposed. The type strains are <i>N. rhizovicinum</i> M1R2S20<sup>T</sup> (=CGMCC 1.62060<sup>T</sup>=KCTC 8106<sup>T</sup>) and <i>N. kalidii</i> RD2P27<sup>T</sup> (=CGMCC 1.62131<sup>T</sup>=KCTC 8107<sup>T</sup>).</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143597003","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>Buchananella felis</i> sp. nov. isolated from feline pyothorax.","authors":"Simon Feyer, Stephanie Fuss, Natascha Gross, Sandra Zumwald, Isabelle Brodard, Sonja Kittl","doi":"10.1099/ijsem.0.006723","DOIUrl":"10.1099/ijsem.0.006723","url":null,"abstract":"<p><p>We here describe a novel, Gram-stain positive, catalase positive and oxidase negative bacterium isolated from pyothorax samples of cats. The four described strains 14KM1171, 17KM0085, 22MD1345 and 22MD1512<sup>T</sup> have a genome size of 2.35-2.40 Mb and a DNA G+C content of 68.3-68.4 mol%. They are genetically most closely related to <i>Buchananella hordeovulneris</i> with a 16S rRNA similarity of 96.9%, digital DNA-DNA hybridization value of 15% and an average nucleotide identity of 73.5%, all clearly below the species threshold. The major cellular fatty acids (C<sub>16:0</sub>, C<sub>15:0</sub> anteiso and C<sub>14:0</sub>) are the same as in <i>B. hordeovulneris</i> supporting classification in that genus. We therefore propose that our isolates represent a novel species with the name <i>Buchananella felis</i> sp. nov. with type strain 22MD1512<sup>T</sup> (=CCOS 2118<sup>T</sup>=DSM 117562<sup>T</sup>).</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143663398","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}
Carrie J Pratt, Emma E England, Julia M Vinzelj, Noha H Youssef, Mostafa S Elshahed
{"title":"<i>Anaeromyces corallioides,</i> sp. nov., a new anaerobic gut fungus from the faeces of cattle.","authors":"Carrie J Pratt, Emma E England, Julia M Vinzelj, Noha H Youssef, Mostafa S Elshahed","doi":"10.1099/ijsem.0.006719","DOIUrl":"10.1099/ijsem.0.006719","url":null,"abstract":"<p><p>We report on the isolation and characterization of three isolates of anaerobic gut fungi from a cattle faecal sample obtained in Stillwater, OK, USA. The isolates produced polycentric thalli with nucleated rhizomycelia, lobed appressorium-like structures, intercalary sporangia and constricted sausage-like hyphae. These morphological features are characteristic of members of the genus <i>Anaeromyces</i>. No zoospore production was observed during the isolation process or thereafter. The strains seemed to have propagated solely through their nucleated hyphae post initial enrichment. Phylogenetic analysis of the D1/D2 region of the large ribosomal subunit (D1/D2 LSU) rRNA, the ribosomal intergenic spacer region 1 (ITS1), RNA polymerase II large subunit (RPB1) and comparative average amino acid identity using transcriptomic datasets further confirmed the position of the type strain as a distinct member of the genus <i>Anaeromyces</i>, family <i>Anaeromycetaceae</i> and phylum <i>Neocallimastigomycota</i>. We propose to accommodate these isolates into a new species (<i>Anaeromyces corallioides</i>) within the genus <i>Anaeromyces</i>. The type strain is EE.1.</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11936339/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143648498","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}
Xing-Wen Dai, Ya-Lan Zhao, He-Xin Cui, Yi Cao, Ze-Fen Yu
{"title":"<i>Cladosporium</i> diversity within seeds of <i>Allium wallichii</i> and description of a novel species, <i>Cladosporium allii-wallichii</i>.","authors":"Xing-Wen Dai, Ya-Lan Zhao, He-Xin Cui, Yi Cao, Ze-Fen Yu","doi":"10.1099/ijsem.0.006730","DOIUrl":"10.1099/ijsem.0.006730","url":null,"abstract":"<p><p><i>Allium wallichii</i> is a perennial herbaceous plant with high genetic diversity, which is mainly distributed in the southwest of Yunnan. During our investigation of the diversity of seed endophytic fungi of <i>A. wallichii</i>, 157 strains of fungi were isolated; among them, 50 strains were identified as <i>Cladosporium</i> spp. based on internal transcribed spacer (ITS) sequences. Then, two additional loci, <i>tef1-α</i> and <i>act</i>, were sequenced for all strains of <i>Cladosporium</i>. Based on combined ITS, <i>tef1-α</i> and <i>act</i> sequence analyses, these strains were further identified to species level, including 15 known species and a new, so far undescribed, species. Based on combined morphological characteristics and phylogenetic analyses, one new species is introduced under the name <i>Cladosporium allii-wallichii</i>. Detailed descriptions, illustrations and phylogenetic analyses of the new species are provided in this study.</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735828","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":"Validation List no. 222. Valid publication of new names and new combinations effectively published outside the <i>IJSEM</i>.","authors":"Aharon Oren, Markus Göker","doi":"10.1099/ijsem.0.006640","DOIUrl":"https://doi.org/10.1099/ijsem.0.006640","url":null,"abstract":"","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143752709","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}
Daniela M G da Silva, Matilde Marques, Joana F Couceiro, Elsa Santos, Núria Baylina, Rodrigo Costa, Tina Keller-Costa
{"title":"<i>Endozoicomonas lisbonensis</i> sp. nov., a novel marine bacterium isolated from the soft coral <i>Litophyton</i> sp. at Oceanário de Lisboa in Portugal.","authors":"Daniela M G da Silva, Matilde Marques, Joana F Couceiro, Elsa Santos, Núria Baylina, Rodrigo Costa, Tina Keller-Costa","doi":"10.1099/ijsem.0.006696","DOIUrl":"10.1099/ijsem.0.006696","url":null,"abstract":"<p><p>This study describes a Gram-stain-negative, rod-shaped, facultatively anaerobic bacterial species isolated from the octocoral <i>Litophyton</i> sp. inhabiting the live coral aquarium at Oceanário de Lisboa in Portugal. Four strains, NE35, NE40<sup>T</sup>, NE41 and NE43, were classified into the genus <i>Endozoicomonas</i> by means of 16S rRNA gene and whole-genome sequence homologies. We then performed phylogenetic, phylogenomic and biochemical analyses to examine their novel species status within the <i>Endozoicomonas</i> genus, based on comparisons with the designated novel type strain NE40<sup>T</sup>. The closest 16S rRNA gene relatives to strain NE40<sup>T</sup> are <i>Endozoicomonas montiporae</i> CL-33<sup>T</sup> (98.2%), <i>Endozoicomonas euniceicola</i> EF212<sup>T</sup> (97.6%) and <i>Endozoicomonas gorgoniicola</i> PS125<sup>T</sup> (97.2%). The four strains show genome-wide average nucleotide identity scores above the species level cut-off (95%) with one another and below the cut-off with all <i>Endozoicomonas</i> type strains with publicly available genomes. Digital DNA-DNA hybridization further supported the classification of the strains as a novel species, showing values below 70% when compared with other <i>Endozoicomonas</i> type strains. The DNA G+C content of NE40<sup>T</sup> was 49.0 mol%, and its genome size was 5.45 Mb. Strain NE40<sup>T</sup> grows from 15 to 37 °C, with 1-5% (w/v) NaCl, and between pH 6.0 and 8.0 in marine broth and shows optimal growth at 28-32 °C, 2-3% NaCl and pH 7.0-8.0. The predominant cellular fatty acids are summed feature 3 (C<sub>16 : 1</sub> ω6<i>c</i> and/or C<sub>16 : 1</sub> ω7<i>c</i>), summed feature 8 (C<sub>18 : 1</sub> ω6<i>c</i> and/or C<sub>18 : 1</sub> ω7<i>c</i>), C<sub>16 :0</sub> and C<sub>14 :0</sub>. Strain NE40<sup>T</sup> presents oxidase, catalase and <i>β</i>-galactosidase activities and can reduce nitrates to nitrites and degrade cellulose, chitin, agarose and xylan. Based on the polyphasic approach employed in this study, we propose the novel species name <i>Endozoicomonas lisbonensis</i> sp. nov. (type strain NE40<sup>T</sup>=DSM 118084<sup>T</sup>=UCCCB 212<sup>T</sup>).</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11883135/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143567065","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}
Jaincy N Jayan, Ke Dong, Sathiyaraj Srinivasan, Sang-Seob Lee
{"title":"<i>Sulfitobacter sediminis</i> gen. nov., sp. nov., a novel halophilic bacterium isolated from tidal flat sediment.","authors":"Jaincy N Jayan, Ke Dong, Sathiyaraj Srinivasan, Sang-Seob Lee","doi":"10.1099/ijsem.0.006705","DOIUrl":"10.1099/ijsem.0.006705","url":null,"abstract":"<p><p>A novel bacterial strain, MJW-29<sup>T</sup>, was isolated from tidal flat sediment in Gochang, Republic of Korea. The isolate is Gram-stain-negative, facultatively anaerobic, gliding motile and short rods. The strain MJW-29<sup>T</sup> is oxidase and catalase positive. Growth is observed at 25-40 °C (optimum, 30 °C) and pH 5-9 (optimum, pH 7.0) in the presence of 0-9% (w/v) NaCl (optimum, 5.0% NaCl). The 16S rRNA gene sequence identity analysis showed that the strain MJW-29<sup>T</sup> is closely associated with <i>Tateyamaria armeniaca</i> KMU-156<sup>T</sup> (97.2%), <i>Sulfitobacter alexandrii</i> AM1-D1<sup>T</sup> (97.2%), <i>Sulfitobacter sediminilitoris</i> JBTF-M27<sup>T</sup> (97.0%) and <i>Thalassovita litoraria</i> KU5D5<sup>T</sup> (96.9%) from the family <i>Roseobacteraceae</i>. The major respiratory quinone was Q-10. The major polar lipids were phosphatidylglycerol, phosphatidylcholine, phospholipid and an unidentified lipid. The major cellular fatty acids of type strain MJW-29<sup>T</sup> were C<sub>18:1</sub> <i>ω</i>7c/C<sub>18:1</sub> <i>ω</i>6c (64.5%). The genome length of the type strain MJW-29<sup>T</sup> is 4.9 Mbp (DNA G+C content, 62.1 mol%). It has 4638 coding genes and 43 tRNAs. The average aa identity values; average nt identity values; and biochemical, phylogenetic and physiological characteristics support the genotypic and phenotypic differentiation of strain MJW-29<sup>T</sup> from other members of the genus <i>Sulfitobacter</i>. The strain MJW-29<sup>T</sup> represents a novel species of the genus <i>Sulfitobacter</i> in the family <i>Roseobacteraceae</i>, for which the name <i>Sulfitobacter sediminis</i> sp. nov. is proposed. The type strain is MJW-29<sup>T</sup> (=KCTC 8634<sup>T</sup>=KEMB 20189<sup>T</sup>=JCM 37145<sup>T</sup>).</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143615570","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}
Anna Kachor, Ivan Roman, Victor Fedorenko, Oleksandr Gromyko
{"title":"<i>Mumia qirimensis</i> sp. nov. isolated from the rhizosphere of <i>Phyllostachys viridiglaucescens</i> (Carrière) Rivière & C. Rivière.","authors":"Anna Kachor, Ivan Roman, Victor Fedorenko, Oleksandr Gromyko","doi":"10.1099/ijsem.0.006737","DOIUrl":"10.1099/ijsem.0.006737","url":null,"abstract":"<p><p>A novel actinomycete strain, designated Pv 4-285<sup>T</sup>, was isolated from rhizosphere sample collected from <i>Phyllostachys viridiglaucescens</i> growing in the Nikitsky Botanical Garden, Crimea, Ukraine. The strain Pv 4-285 <sup>T</sup> shared the highest 16S rRNA gene sequence similarity with <i>Mumia xiangluensis</i> NEAU-KD1<sup>T</sup>. The genome size was 4.6 Mbp with a DNA G+C content of 70.43%. The isolate was Gram-stain-positive, non-spore-forming, non-motile and aerobic. Cells were observed to be irregularly rod-shaped. Pv 4-285<sup>T</sup> was able to grow at 20-37 °C and at pH 6.0-9.0 and in the presence of up to 6% (w/v) NaCl. The predominant menaquinone was detected as MK-9(H<sub>4</sub>). The polar lipid profile of strain Pv 4-285<sup>T</sup> consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol mannoside and phosphatidylinositol. Pv 4-285 contained C<sub>16:0</sub>, С<sub>18:1</sub> ω9c, 10-methyl C<sub>18:0</sub>, C<sub>17:0</sub>. While galactose, mannose and xylose were detected in strain Pv 4-285<sup>T</sup> as the whole-cell sugars. Based on these differences, strain Pv 4-285<sup>T</sup> (=DSM 118545<sup>T</sup> =LMG 33743<sup>T</sup>) should be classified as the type strain of a novel species of <i>Mumia</i>, for which the name <i>Mumia qirimensis</i> sp. nov. is proposed.</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735829","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>Scheffersomyces tanahashii</i> sp. nov., isolated from the cocoon wall of the stag beetle <i>Prosopocoilus astacoides blanchardi</i>.","authors":"Matan Shelomi","doi":"10.1099/ijsem.0.006720","DOIUrl":"10.1099/ijsem.0.006720","url":null,"abstract":"<p><p>A previous investigation of symbiotic yeasts associated with the stag beetle <i>Prosopocoilus astacoides blanchardi</i> isolated strains of the genus <i>Scheffersomyces</i> from the cocoon walls, larval midgut, larval hindgut and larval tunnels. Phylogenetic analysis of the D1/D2 domains of the LSU rRNA gene sequences revealed identical sequences, indicating that they belonged to the same species, but suggested that the species was new. In this study, sequence analysis and physiological characterization identified a representative strain of these beetle-associated yeasts as a novel species in the genus <i>Scheffersomyces</i>. The sequence similarities of the concatenated LSU domains and internal transcribed spacer regions indicated that strain BCRC 23563<sup>T</sup> forms a well-supported and distinct species in the xylose-fermenting <i>Scheffersomyces</i> subclade, with the sequences for each gene differing in nt substitutions from those of previously described related species by at least 1.06% and 2.7% respectively. The physiological characteristics of the novel species were also distinct from those of the closely related described species, though it could still process xylose as is expected of stag beetle-associated <i>Scheffersomyces</i> symbionts. Based on the data, a novel yeast species, <i>Scheffersomyces tanahashii</i> sp. nov., is proposed to accommodate this strain. The holotype is BCRC 23563<sup>T</sup> (ex-type strains NBRC 116731 and NCYC 4470). The MycoBank accession number is 857608.</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11936340/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143630041","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>Kitasatospora camelliae</i> sp. nov., isolated from rhizosphere soil of <i>Camellia oleifera</i>.","authors":"Kaiqin Li, Ying Qian, Jian Gao, Wei Liang","doi":"10.1099/ijsem.0.006717","DOIUrl":"10.1099/ijsem.0.006717","url":null,"abstract":"<p><p>Strain HUAS MG31<sup>T</sup> was isolated from the rhizosphere soil of <i>Camellia oleifera</i> collected from Taoyuan County, China. This strain produced white substrate mycelium and hair brown aerial mycelium without diffusible pigment on the Gause's synthetic No. 1 medium. Aerial mycelia differentiated into rectiflexible spore chains consisting of spherical or cylindrical spores with smooth surfaces. Cell wall peptidoglycan of strain HUAS MG31<sup>T</sup> contained <i>meso</i>-diaminopimelic acid, and whole-cell sugars were galactose and mannose. The menaquinones of strain HUAS MG31<sup>T</sup> were MK-9(H<sub>6</sub>), MK-9(H<sub>8</sub>) and MK-9(H<sub>4</sub>). The major cellular fatty acids consisted of Summed Feature 9 (<i>iso</i>-C<sub>17 : 1</sub> ω9c/10-methyl C<sub>16 : 0</sub>), <i>iso</i>-C<sub>16 : 0</sub>, <i>iso</i>-C<sub>15 : 0</sub>, <i>anteiso</i>-C<sub>15 : 0</sub>, <i>iso</i>-C<sub>17 : 0</sub>, <i>anteiso</i>-C<sub>17 : 0</sub>, Summed Feature 3 (<i>iso</i> H-C<sub>16 : 1</sub> /<sub>C16 : 1</sub> ω6c) and cyclo C<sub>17 : 0</sub>. Sequence analysis based on the full-length 16S rRNA gene of strain HUAS MG31<sup>T</sup> showed that it shared highest sequence similarities to <i>Kitasatospora paranensis</i> HKI 0190<sup>T</sup> (99.5%) and <i>Kitasatospora terrestris</i> HKI 0186<sup>T</sup> (99.4%). The phylogenomic tree shows that strain HUAS MG31<sup>T</sup> forms an independent subclade, indicating that it might belong to a potential novel species. The results from phylogenetic trees based on 16S rRNA gene sequences showed that strain HUAS MG31<sup>T</sup> was most closely related to <i>K. paranensis</i> HKI 0190<sup>T</sup>. However, the average nucleotide identity and the digital DNA-DNA hybridization between strain HUAS MG31<sup>T</sup> and <i>K. paranensis</i> JCM 13005<sup>T</sup> were 87.0 %/81.2% and 25.8 %, respectively, below the 95%-96% and 70 % threshold that defined a new species. Meanwhile, phenotypic, chemotaxonomic characteristics and MALDI-TOF MS results further confirmed that strain HUAS MG31<sup>T</sup> was significantly different from <i>K. paranensis</i> JCM 13005<sup>T</sup>. Therefore, these results reveal that strain HUAS MG31<sup>T</sup> represents a novel species of the genus <i>Kitasatospora</i>, for which the name <i>Kitasatospora camelliae</i> sp. nov. is proposed. The type strain is HUAS MG31<sup>T</sup> (=MCCC 1K09225<sup>T</sup>= JCM 37022<sup>T</sup>).</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"75 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143657071","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}