International journal of systematic and evolutionary microbiology最新文献

{"title":"Biogeography and specificity of legume rhizobial symbiovars.","authors":"Mitchell Andrews, Laura Russo, Simon Hodge, JunJie Zhang","doi":"10.1099/ijsem.0.007307","DOIUrl":"https://doi.org/10.1099/ijsem.0.007307","url":null,"abstract":"<p><p>The majority of legume species (plant family <i>Fabaceae</i>) can fix atmospheric nitrogen (N₂) via symbiotic bacteria (general term 'rhizobia') in root nodules. Symbiovars are defined as strains of rhizobia that can establish an N₂-fixing symbiosis with distinct legume species and have specific symbiosis gene phylogenies. Here, symbiovar occurrence across rhizobial species was related to rhizobia and legume host taxonomy and geographic location of the symbiosis, and then their specificity was assessed in relation to legume species they did or did not nodulate. Sixty-eight rhizobial symbiovars occurred across 183 of the 275 described rhizobial species in all main rhizobial genera in different countries on all continents except Antarctica. Generally, individual symbiovars occurred within one rhizobial genus, but there were exceptions. Symbiovars associated with widely grown crop legume species were of different rhizobial species on different continents. Most other symbiovars occurred within rhizobial species isolated from one legume species, genus or clade/tribe in a single country. Data on legume nodulation are limited for half of the symbiovars, such that judgements on their wider specificity are not possible. However, several of these symbiovars were shown to be specific to particular legume species within a genus. All other symbiovars showed legume specificity, but this was variable. Overall, further nodulation and symbiosis gene phylogenetic studies are required to more clearly define symbiovars.</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"76 10","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149193744","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>Campylobacter aecornae</i> sp. nov., isolated from surface water in Slovenia.","authors":"Andreas Erich Zautner, Anastasia-Lisa Dieckmann, Wolfgang Bohne, Sascha Kahlfuß, Stephan Lorenzen, Boyke Bunk, Cathrin Spröer, Jörg Overmann, Michael Hoppert, Sonja Smole Možina, Katja Zelenik","doi":"10.1099/ijsem.0.007310","DOIUrl":"https://doi.org/10.1099/ijsem.0.007310","url":null,"abstract":"<p><p>During a surveillance study conducted in Slovenia to investigate <i>Campylobacter</i> species from environmental waters, various <i>Campylobacter coli</i> isolates from clades 1 to 3 were isolated. Additionally, a <i>Campylobacter</i> isolate designated CCS1377, originating from the Classical Karst region near Illyrian Bistrica, was initially identified as a relative of <i>C. coli</i> through preliminary identification using multiplex PCR and MALDI-TOF MS. However, these methods did not allow a definite classification of the isolate. In-depth phenotypic analysis revealed characteristics of CCS1377 that were distinct from <i>C. coli</i> and <i>Campylobacter jejuni</i> type strains. This included a unique cell and colony morphology, non-motility, weak autoagglutination and an inability to assimilate succinate. MALDI-TOF MS analysis revealed distinct biomarker ions compared to <i>C. coli</i> RM2228, supporting the hypothesis that CCS1377 represents a novel species. Whole-genome sequencing and comparative genomics confirmed its distinct phylogenetic position. The chromosome of <i>Campylobacter</i> sp. CCS1377 was estimated to be 1,853,379 bp in size with a G+C content of 30.78 mol%, and the genome was predicted to contain 1,878 genes. Average nucleotide identity analysis against genomes available in the NCBI database yielded a maximum value of 81.2% when compared to <i>C. coli</i> type strain NCTC11366^T, significantly below the established species threshold of 94.2%. The digital DNA-DNA hybridization (dDDH) value was also below the species threshold of 70%, with dDDH d₄=22.0% [19.7-24.4%] in comparison to the <i>C. coli</i> type strain NCTC11366^T. Based on these phenotypic and genomic characteristics, we propose the name <i>Campylobacter aecornae</i> sp. nov. for the newly recognized <i>Campylobacter</i> species. The proposed type strain is CCS1377^T (=DSM 102056^T=LMG 33651^T).</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"76 10","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149109485","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>Ureaplasma rhincodontis</i> sp. nov. isolated from the faeces of whale shark (<i>Rhincodon typus</i>).","authors":"Takao Segawa, Yu Nakajima, Takaomi Ito, Yuzuki Saito, Itsuki Kiyatake, Yusuke Yoshii, Takuya Itou","doi":"10.1099/ijsem.0.007317","DOIUrl":"https://doi.org/10.1099/ijsem.0.007317","url":null,"abstract":"<p><p>A novel strain of the genus <i>Ureaplasma</i>, designated TOSA-KAIYU^T, was isolated from the faeces of a whale shark (<i>Rhincodon typus</i>). This study reports the first isolation of a member of the genus <i>Ureaplasma</i> from a poikilothermic vertebrate. TOSA-KAIYU^T was characterized phenotypically and genotypically and compared with known species of the genus <i>Ureaplasma</i>. TOSA-KAIYU^T hydrolysed urea, but arginine catabolism and acid production from glucose were not detected under the aerobic conditions tested. TOSA-KAIYU^T grew in serum- and urea-supplemented pleuropneumonia-like organism (PPLO) broth under both aerobic and anaerobic conditions at 25 °C; however, colour-changing unit titres were 10-100-fold higher under anaerobic conditions and colony formation on PPLO agar occurred only under anaerobic conditions. Transmission electron microscopy revealed a typical mollicute cellular morphology. 16S rRNA gene sequence analysis indicated that the most closely related type strain of a species with a validly published name was <i>Ureaplasma ceti</i> JCM 39153^T (92.8% similarity). The average nt identity and digital DNA-DNA hybridization values between TOSA-KAIYU^T and closely related species were below the accepted thresholds for species delineation. Phylogenetic analysis further showed that TOSA-KAIYU^T belongs to an uncultured-dominated clade of the genus <i>Ureaplasma</i>, together with <i>U. ceti</i>, which has previously been the only cultured representative of this lineage. Based on the genomic, phenotypic and phylogenetic properties, TOSA-KAIYU^T represents a novel species of the genus <i>Ureaplasma</i>, for which the name <i>Ureaplasma rhincodontis</i> sp. nov. with type strain TOSA-KAIYU^T (=JCM 39612^T =KCTC 25996^T) is proposed. The genomic G+C content and draft genome size of the type strain were 26.0 mol% and 625,683 bp, respectively.</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"76 10","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149181439","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>Xanthomarina sediminis</i> sp. nov. and <i>Xanthomarina flava</i> sp. nov., isolated from coastal sediment.","authors":"Jing Zhang, Hai-Qing Zhang, Zou-Yu Jin, Ping Wang, Yong-Peng Jia, Yuan-Xi Xiao, Hui-Xing Li, Li-Na Cao, Zong-Jun Du","doi":"10.1099/ijsem.0.007330","DOIUrl":"https://doi.org/10.1099/ijsem.0.007330","url":null,"abstract":"<p><p>Two Gram-stain-negative, non-motile and rod-shaped bacterial strains, designated F1114^T and F2636L^T, were isolated from a coastal sediment sample collected from Jingzi Port, Weihai, China. The 16S rRNA gene sequence similarity between the two strains was 96.8%. Both strains shared the highest 16S rRNA gene sequence similarities with <i>Xanthomarina spongicola</i> KCTC 22662^T (94.9% and 96.2%, respectively). Phylogenomic analyses confirmed that strains F1114^T and F2636L^T belong to the genus <i>Xanthomarina</i>. Based on the results of phylogenetic, phenotypic and chemotaxonomic data and genomic comparison, strains F1114^T and F2636L^T could be distinguished from their closest taxa, representing two novel species of the genus <i>Xanthomarina</i>, for which the names <i>Xanthomarina sediminis</i> sp. nov. and <i>Xanthomarina flava</i> sp. nov. are proposed, respectively. The type strains are F1114^T (=KCTC 92650^T=MCCC 1H01355^T) and F2636L^T (=KCTC 92651^T=MCCC 1H01398^T).</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"76 10","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149238365","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>Allomesorhizobium aridi</i> sp. nov., a novel symbiotic nitrogen-fixing species isolated from root nodules of <i>Astragalus armatus</i> growing in lead mine tailings in the Middle Atlas, Morocco.","authors":"Soufiane Alami, Kaoutar Kaddouri, Zohra Chaddad, Mouad Lamrabet, Bacem Mnasri, Pierre-Emmanuel Courty, Mustapha Missbah El Idrissi","doi":"10.1099/ijsem.0.007312","DOIUrl":"https://doi.org/10.1099/ijsem.0.007312","url":null,"abstract":"","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"76 10","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149224110","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>Streptomyces salinomycinicus</i> sp. nov. and reclassifications of <i>Streptomyces rubiginosus</i>, <i>Streptomyces niveoruber</i>, <i>Streptomyces griseomycini</i>, <i>Streptomyces roseoviolaceus</i>, <i>Streptomyces violaceochromogenes</i> and <i>Streptomyces virens</i>.","authors":"Hisayuki Komaki","doi":"10.1099/ijsem.0.007293","DOIUrl":"10.1099/ijsem.0.007293","url":null,"abstract":"<p><p>Salinomycin is a polyether ionophore discovered from a streptomycete strain designated 80614 (=DSM 41398=NBRC 107858), and the producer has been published as <i>Streptomyces albus</i>. In this study, the taxonomic position was investigated using a polyphasic approach. The 16S rRNA gene sequence of <i>S. albus</i> 80614 showed similarities of 99.8 and 98.8% to those of '<i>Streptomyces physcomitrii</i>' LD120^T and <i>Streptomyces levis</i> NBRC 15423^T, respectively, as the closest, but the similarity to <i>S. albus</i> NBRC 13014^T was only 96.1%. <i>S. albus</i> 80614 was not close to <i>S. albus</i> NBRC 13014^T and rather formed a clade with '<i>S. physcomitrii</i>' LD120^T in the phylogenetic tree based on 16S rRNA gene sequences. The digital DNA-DNA hybridization (dDDH) values were 67.8, 23.3 and 21.6% to '<i>S. physcomitrii</i>' LD120^T, <i>S. levis</i> JCM 6924^T and <i>S. albus</i> NBRC 13014^T, respectively. The average nucleotide identity based on MUMmer (ANIm) was 96.5% between <i>S. albus</i> 80614 and '<i>S. physcomitrii</i>' LD120^T. These dDDH and ANIm values were below the thresholds, 70 and 96.7% for bacterial and streptomycetal species delineation, respectively. The strain was differentiated from these three referenced species in major phenotypic characteristics such as spore morphology, NaCl tolerance and carbon source utilization. Therefore, <i>Streptomyces salinomycinicus</i> sp. nov. was proposed for the strain. This new species included <i>S. albus</i> ZD11, <i>S. albus</i> BK3-25, <i>Streptomyces</i> sp. SCSIO ZS0520, '<i>S. physcomitrii</i>' NPDC020937 and '<i>S. physcomitrii</i>' NPDC020938. Additionally, <i>Streptomyces rubiginosus</i> is reclassified as a later heterotypic synonym of <i>Streptomyces pseudogriseolus</i>; <i>Streptomyces niveoruber</i> as a later heterotypic synonym of <i>Streptomyces griseoviridis</i>; <i>Streptomyces griseomycini</i> as a later heterotypic synonym of <i>Streptomyces griseostramineus</i>; <i>Streptomyces roseoviolaceus</i> as a later heterotypic synonym of <i>Streptomyces violaceus</i>; <i>Streptomyces violaceochromogenes</i> as a later heterotypic synonym of <i>Streptomyces collinus</i>; and <i>Streptomyces virens</i> as a later heterotypic synonym of <i>Streptomyces calvus</i>.</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"76 10","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149181507","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>Candidatus</i> Phytoplasma zeae': community-driven species delineation of the maize bushy stunt phytoplasma, a <i>Dalbulus</i>-transmitted corn pathogen confined to the Americas.","authors":"Thierry Alexandre Pellegrinetti, Joshua Molligan, Abraão Almeida Santos, Maria C Canale, Maira Rodrigues Duffeck, Alejandro Olmedo-Velarde, Jordanne Jacques, Ivair Valmorbida, Ashleigh Faris, Marcos V S de Andrade, Magda A P Manica, Mauricio Luna, Paola Reyes-Caldas, Jairo Rodriguez-Chalarca, Tim Dumonceaux, Edel Pérez-López","doi":"10.1099/ijsem.0.007301","DOIUrl":"https://doi.org/10.1099/ijsem.0.007301","url":null,"abstract":"<p><p>A novel phytoplasma species, '<i>Candidatus</i> Phytoplasma zeae', is proposed based on ecological distinctiveness, vector specificity, whole-genome comparisons and community consensus. This phytoplasma is associated with maize bushy stunt (MBS) disease in corn (<i>Zea mays</i>) and is transmitted exclusively by <i>Dalbulus maidis</i> and <i>Dalbulus elimatus</i>, two leafhopper species endemic to the Americas that has been reported in Brazil, Colombia, Mexico, Peru and several U.S. states. Here, we sequenced and assembled the genome of MBS phytoplasma (MBSP) strains from Brazil and the USA to describe and propose this new species. Although the 16S rRNA gene sequence of the proposed reference strain, MBSP-BR^RS, shares >99% identity with that of '<i>Candidatus</i> Phytoplasma asteris', key nucleotide polymorphisms distinguish '<i>Ca</i>. P. zeae' from other 16SrI-related phytoplasma species. Genome-wide average nucleotide identity between '<i>Ca</i>. P. zeae' and all available '<i>Ca</i>. P. asteris'-related strains genomes was between 92.6 and 98.4%. Comparative genomic analyses revealed unique gene clusters in '<i>Ca</i>. P. zeae' associated with amino acid transport, defence mechanisms and protein turnover, which may contribute to its specialization in corn. The ecological profile of '<i>Ca</i>. P. zeae', including its narrow host and vector range and restricted geographic distribution, supports its recognition as a novel species under Rule c of the IRPCM guidelines. The designation '<i>Ca</i>. P. zeae' is, therefore, proposed by members of the research community who have studied this pathogen for over a decade, with the MBSP-Brazil^RS strain serving as the reference.</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"76 10","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13660524/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149181279","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>Mesocryomonas lacus</i> sp. nov. and <i>Mesocryomonas fontinalis</i> sp. nov., two novel species of the genus <i>Mesocryomonas</i> isolated from Xizang.","authors":"Lin Tian, Yan-Yan Zheng, You-Jun Liao, Dorji Phuntsok, Ai-Hua Li, Zi-Xuan Liu","doi":"10.1099/ijsem.0.007315","DOIUrl":"https://doi.org/10.1099/ijsem.0.007315","url":null,"abstract":"<p><p>Three bacterial strains, designated RWH2-10P3^T, RWH1-P55 and W4-P8^T, were isolated from water samples collected from Xizang Autonomous Region, China. Phylogenetic analysis based on 16S rRNA gene sequences revealed that all three strains belong to the genus <i>Mesocryomonas</i>, with the highest sequence similarities to <i>Mesocryomonas glaciei</i> B5-2^T (98.1-98.4%), according to the EzBioCloud database. The draft genomes of the three strains were fully assembled, with genome sizes of 5.16-5.30 Mb and DNA G+C contents of 66.0-66.3%. Phylogenomic analysis based on single-copy genes confirmed that strains RWH2-10P3^T and RWH1-P55 would form a distinct clade, and strain W4-P8^T clustered together as a separate clade within the genus <i>Mesocryomonas</i>. Genome-scale comparative taxonomic analyses, including the digital DNA-DNA hybridization values, average nucleotide identity values and average amino acid identity, showed that the corresponding values between the novel strains and the closest relative species <i>M. glaciei</i> B5-2^T were below 23.2, 80.1 and 76.6%, respectively, which were well below the species delineation thresholds. Chemotaxonomic analysis showed that the major fatty acids of novel strains were summed feature 8 (C_18 : 1 <i> ω7</i>c and/or C_18 : 1 <i> ω6</i>c). The predominant isoprenoid quinone was Q-10, and the major polar lipids included phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, sulfoquinovosyldiacylglycerol and several unidentified lipids. Phenotypically, the novel strains exhibited distinct characteristics in growth conditions, carbon source utilization and enzyme activities compared to closely related species. Based on the polyphasic taxonomic data, strains RWH2-10P3^T and RWH1-P55 represent one novel species, named <i>Mesocryomonas lacus</i> sp. nov., with the type strain RWH2-10P3^T (=CGMCC 1.66487^T=KCTC 18568^T) and the strain RWH1-P55 (=CGMCC 1.66488=KCTC 18566). Strain W4-P8^T represents another novel species, for which the name <i>Mesocryomonas fontinalis</i> sp. nov. is proposed, with the type strain W4-P8^T (=CGMCC 1.66489^T=KCTC 18567^T).</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"76 10","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149297476","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":"Notification that new names of prokaryotes, new combinations and new taxonomic opinions have appeared in volume 76, part 6 of the <i>IJSEM</i>.","authors":"Aharon Oren, Markus Göker","doi":"10.1099/ijsem.0.007258","DOIUrl":"https://doi.org/10.1099/ijsem.0.007258","url":null,"abstract":"","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"76 9","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13629753/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149108959","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>Chrysozyma moheensis</i> sp. nov., a novel psychrotolerant yeast isolated from the extremely cold region of China.","authors":"Dian-Liang Gong, Jia-Qi Guan, Chuang Han, Ya-Nan Qu, Zhi-Ying Fan, Shi Cheng, Hua Cong, Qing-Hao Song, Jin-Zhu Song","doi":"10.1099/ijsem.0.007308","DOIUrl":"https://doi.org/10.1099/ijsem.0.007308","url":null,"abstract":"<p><p>Three yeast isolates representing a novel psychrotolerant yeast species were recovered from soil collected in Mohe City, Heilongjiang Province, PR China. The phylogenetic analyses based on the D1/D2 domains of the LSU rRNA and internal transcribed spacer (ITS) region showed that the new yeast formed a well-supported clade closely related to <i>Chrysozyma sorbariae</i> CGMCC 2.2768^T. However, the new isolate differed from <i>C. sorbariae</i> CGMCC 2.2768^T by 8.15% sequence divergence (30 nt differences and 23 gaps out of 650 bp) in the ITS region and by 2.16% sequence divergence (9 substitutions and 4 indels over 603 bp) in the D1/D2 domain, respectively. In contrast to <i>C. sorbariae</i>, the novel yeast species was able to assimilate soluble starch, d-xylose, d-ribose, glycerol, succinate, myo-inositol and ethylamine hydrochloride but was unable to assimilate maltose, melezitose, inulin, d-mannitol, d-glucitol, ammonium sulphate and potassium nitrate. On the basis of these findings, the name <i>Chrysozyma moheensis</i> sp. nov. is proposed to accommodate strains 15A5, 13A5 and 13A6, with CCTCC AF 2021079^T (MycoBank no.: MB842231) designated as the holotype.</p>","PeriodicalId":14390,"journal":{"name":"International journal of systematic and evolutionary microbiology","volume":"76 10","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149127443","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}