Dalma Márton, Milán Farkas, Anna Bedics, Erika Tóth, András Táncsics, Károly Bóka, Gergely Maróti, Erzsébet Baka, Balázs Kriszt, Mátyás Cserháti
{"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<sup>T</sup> was isolated from the surface of maize roots. Strain P96<sup>T</sup> 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<sup>T</sup> 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<sup>T</sup> (29.4 and 85.2%, respectively). Genotypic data together with phenotypic properties supported the classification of strain P96<sup>T</sup> 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<sup>T</sup> (=LMG 32802<sup>T</sup> = NCAIM B 02678<sup>T</sup>).</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}
Anya Schnyder, Ratchara Kalawong, Leo Eberl, Kirsty Agnoli
{"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}
Leonor Matos, Lorrie Maccarrio, Ana Paula Chung, Diogo N Proença, Søren Sørensen, Paula V Morais, Romeu Francisco
{"title":"<i>Flavobacterium magnesitis</i> sp. nov. and <i>Flavobacterium zubiriense</i> sp. nov., two novel <i>Flavobacterium</i> species isolated from alkaline magnesite residues.","authors":"Leonor Matos, Lorrie Maccarrio, Ana Paula Chung, Diogo N Proença, Søren Sørensen, Paula V Morais, Romeu Francisco","doi":"10.1099/ijsem.0.006660","DOIUrl":"10.1099/ijsem.0.006660","url":null,"abstract":"<p><p>Three bacterial strains, designated FZUC8N2.13<sup>T</sup>, FBOR7N2.3<sup>T</sup> and FZUR7N2.5, were isolated from distinct magnesite residues in Spain. Phylogenetic and phylogenomic analysis places them within the genus <i>Flavobacterium</i>. Strains FBOR7N2.3<sup>T</sup> and FZUR7N2.5 share 100% of similarity in the 16S rRNA gene sequence, and both are most closely related to <i>Flavobacterium cellulosilyticum</i> AR-3-4<sup>T</sup> with which they share 97.5% of 16S rRNA gene similarity. Strain FZUC8N2.13<sup>T</sup> forms a distinct lineage most closely related to <i>Flavobacterium lacustre</i> IMCC36792<sup>T</sup> with 97.7% 16S rRNA gene similarity. The closest phylogenomic neighbours of these three strains are <i>Flavobacterium flevense</i> DSM 1076<sup>T</sup>, '<i>Flavobacterium undicola</i>' BBQ-18<sup>T</sup> and <i>Flavobacterium commune</i> PK15<sup>T</sup>. The average nucleotide identity and digital DNA-DNA hybridization values between the three strains and closest members of the genus <i>Flavobacterium</i> are below the threshold values of 95% and 70%, respectively. Strains FZUC8N2.13<sup>T</sup>, FBOR7N2.3<sup>T</sup> and FZUR7N2.5 stain Gram-negative, are rod-shaped and form yellow colonies. Optimum growth occurs at 25 °C and pH 7. The genomic G+C contents are 33.4 mol% for strain FZUC8N2.13<sup>T</sup> and 33.2 mol% for strains FBOR7N2.3<sup>T</sup> and FZUR7N2.5. The major isoprenoid quinone is menaquinone 6. The major fatty acids are summed feature 3 (C<sub>16 : 1</sub> ω7c and/or C<sub>16 : 1</sub> ω6c) (22.6-31.1%), iso-C<sub>15 : 0</sub> (13.6-16.2 %) and anteiso-C<sub>15 : 0</sub> (8.7-10.5%). The polar lipids consist of two aminolipids, two aminophospholipids and one glycolipid. The phylogenetic, phylogenomic, phenotypic and chemotaxonomic data indicate that FZUC8N2.13<sup>T</sup>, FBOR7N2.3<sup>T</sup> and FZUR7N2.5 are distinct from the described species of <i>Flavobacterium</i> and should be classified as novel species, for which we propose the names <i>Flavobacterium zubiriense</i> for strain FZUC8N2.13<sup>T</sup> (=UCCCB 179<sup>T</sup>=CECT 30977<sup>T</sup>) and <i>Flavobacterium magnesitis</i> for strains FBOR7N2.3<sup>T</sup> (=UCCCB 178<sup>T</sup>=CECT 30976<sup>T</sup>) and FZUR7N2.5 (=UCCCB 216=CECT 31036).</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":"143052533","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}
Tengfei Tang, Yiru Liu, Yanhua Cao, Kun Cheng, Denise Lindsay, Francois Bourdichon, Aurélie Dubois-Lozier, Shalome Bassett, Yunmei Xu, Huifen Feng, Zhiquan Song, Rui Liu, Lizheng Guo, Su Yao
{"title":"Genomic insights support the taxonomic differentiation of <i>Streptococcus thermophilus</i> Orla-Jensen 1919 (Approved Lists 1980) and <i>Streptococcus salivarius</i> Andrewes and Horder 1906 (Approved Lists 1980) as individual species.","authors":"Tengfei Tang, Yiru Liu, Yanhua Cao, Kun Cheng, Denise Lindsay, Francois Bourdichon, Aurélie Dubois-Lozier, Shalome Bassett, Yunmei Xu, Huifen Feng, Zhiquan Song, Rui Liu, Lizheng Guo, Su Yao","doi":"10.1099/ijsem.0.006612","DOIUrl":"https://doi.org/10.1099/ijsem.0.006612","url":null,"abstract":"<p><p><i>Streptococcus thermophilus</i> is widely used as a starter culture in the production of cheese, yoghurt and various cultured dairy products, which holds considerable significance in both research and practical applications within the food industry. Throughout history, the taxonomy of <i>S. thermophilus</i> has undergone several adjustments and revisions. In 1984, based on the result of DNA-DNA hybridization, <i>S. thermophilus</i> was reclassified as <i>Streptococcus salivarius</i> subsp. <i>thermophilus</i>. Subsequently, in 1991, Schleifer <i>et al</i>. proposed the revival of the species <i>S. thermophilus</i> also relying on a DNA-DNA hybridization study conducted under stringent conditions. At present, both the taxonomic names, <i>S. thermophilus</i> and <i>S. salivarius</i> subsp. <i>thermophilus</i>, are considered as synonyms and adopted within scientific research, regulatory oversight and relevant industries, leading to a certain degree of confusion. A precise and scientifically accurate taxonomic status is imperative as a foundational prerequisite for a strain evaluation and its application in food manufacture and regulatory contexts. In this study, we utilized whole-genome sequencing to evaluate the genetic relationship of <i>S. thermophilus</i> and <i>S. salivarius</i>. At the gene level, phylogenetic analyses were conducted on 52 <i>S</i>. <i>thermophilus</i> strains and 63 <i>S</i>. <i>salivarius</i> strains based on sequences of both the 16S rRNA gene and the housekeeping gene, <i>recA</i>. Additionally, a core-gene phylogeny was inferred using the whole-genome sequencing data of 216 strains within the <i>Streptococcus</i> genus. This analysis facilitated an exhaustive evaluation of the evolutionary interconnections among the studied strains. At the genetic level, average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) were used to verify the species identity of <i>S. thermophilus</i> and <i>S. salivarius</i>. The results of phylogenetic analysis, ANI and dDDH all collectively confirm that <i>S. thermophilus</i> and <i>S. salivarius</i> are distinct species. These research results provide sufficient scientific evidence to support the definitive scientific and rational application of the name of <i>S. thermophilus</i>.</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":"143005041","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>Vishniacozyma siamensis</i> sp. nov., a new anamorphic tremellomycetous yeast species isolated from a mangrove forest in Thailand.","authors":"Pajongwan Gungprakhon, Maneerat Khammeankea, Savitree Limtong, Pannida Khunnamwong","doi":"10.1099/ijsem.0.006623","DOIUrl":"10.1099/ijsem.0.006623","url":null,"abstract":"<p><p>Six strains (DMKU-SG26, DMKU-SG42, DMKU-SYM22, DMKU-RG41, DMKU-RX317 and DMKU-RGM25) representing a novel basidiomycetous yeast species were isolated from leaf surfaces of mangrove plants collected in Thailand. Pairwise sequence analysis indicated that the six strains either had identical nucleotide substitution in the D1/D2 domains of the large subunit (LSU) rRNA gene sequences or differed by one to three nucleotide(s). They also had identical or differed by one to five nucleotide substitution(s) in the internal transcribed spacer (ITS) regions. blastn searches of the GenBank database revealed that the six strains were closely related to the holotype of type strains of <i>Vishniacozyma peneaus</i>, <i>V. terrae</i>, <i>V. phoenicis</i>, <i>V. taiwanica</i> and <i>V. europaea</i>, but with 6-15 (1.14-2.48%) and 16-26 (5.4-8.8%) nucleotide substitutions in the D1/D2 domains of the LSU rRNA gene and the ITS regions, respectively. Phylogenetic analysis based on the concatenated sequences of the ITS regions and D1/D2 domains of the LSU rRNA gene showed that these strains are placed in the <i>Vishniacozyma</i> clade but were at a distinctly different position from the other recognized species of the genus. Based on the phylogenetic analysis and phenotypic characteristics, these six strains are a novel species of the genus <i>Vishniacozyma</i>, for which the name <i>Vishniacozyma siamensis</i> sp. nov. is proposed to accommodate them. The holotype is TBRC 18499<sup>T</sup> and the ex-type culture is PYCC 10042 (=DMKU-SG26). The MycoBank number of the novel species is MB 855838.</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":"142921787","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 (ICSP) Subcommittee on the Taxonomy of <i>Campylobacter</i> and related bacteria: minutes of the closed meetings, 17 January and 31 January 2024.","authors":"Stephen L W On","doi":"10.1099/ijsem.0.006618","DOIUrl":"https://doi.org/10.1099/ijsem.0.006618","url":null,"abstract":"","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":"143005143","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}
Xingyue Lin, Shuqian Zhang, Suyun Fang, Xiaoke Hu, Lianju Ma
{"title":"<i>Pseudoalteromonas qingdaonensis</i> sp. nov., isolated from the intestines of <i>Ilyoplax deschampsi</i>.","authors":"Xingyue Lin, Shuqian Zhang, Suyun Fang, Xiaoke Hu, Lianju Ma","doi":"10.1099/ijsem.0.006625","DOIUrl":"https://doi.org/10.1099/ijsem.0.006625","url":null,"abstract":"<p><p>A Gram-stain-negative, aerobic, motile, catalase-positive, oxidase-positive, short rod-shaped marine bacterium, designated as YIC-827<sup>T</sup>, was isolated from Qingdao, Shandong Province, China. The results showed that cells of strain YIC-827<sup>T</sup> could grow optimally at 25-35 °C, pH 6.5-7.5 and 2-7% (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequence showed that the strain YIC-827<sup>T</sup> was a member of the genus <i>Pseudoalteromonas</i>. The closest relative to this strain was <i>Pseudoalteromonas ruthenica</i> KMM 300<sup>T</sup>, with a similarity of 98.39%. The digital DNA-DNA hybridization value between the new isolate and phylogenetically related species is 19.6%. Strain YIC-827<sup>T</sup> could decompose sodium alginate, casein and esters (Tween 20, Tween 40, Tween 60 and Tween 80), but could not hydrolyse starch, cellulose and DNA. The fatty acid profile of a strain consists of a large number of C<sub>16:0</sub>, C<sub>18:1</sub> ω7c and C<sub>16:1</sub> ω7c/<sub>C16:1</sub> ω6c. The G+C content of the DNA of this strain was determined to be 48.93%. Based on phenotypic characteristics, phylogenetic analysis and DNA-DNA correlation data, the strain YIC-827 <sup>T</sup> represents a novel species of the genus <i>Pseudoalteromonas</i> with the name <i>Pseudoalteromonas qingdaonensis</i> sp. nov. The type strain of <i>P. qingdaonensis</i> sp. is strain YIC-827<sup>T</sup> (=MCCC 1K08807<sup>T</sup>=CGMCC 1.62085<sup>T</sup>=KCTC 8212<sup>T</sup>).</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":"142948730","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}
Haelim Son, Wonsik Mun, Robert J Mitchell, Gyu-Sung Cho, Ja-Young Moon, Kyoung Lee
{"title":"<i>Roseomonas cutis</i> sp. nov., isolated from human epidermis.","authors":"Haelim Son, Wonsik Mun, Robert J Mitchell, Gyu-Sung Cho, Ja-Young Moon, Kyoung Lee","doi":"10.1099/ijsem.0.006617","DOIUrl":"https://doi.org/10.1099/ijsem.0.006617","url":null,"abstract":"<p><p>Five pink-pigmented bacterial strains, isolated from human skin and classified within the genus <i>Roseomonas</i>, were examined. Among them, four were identified as <i>Roseomonas mucosa</i>, while strain OT10<sup>T</sup> was deemed to be a potential novel species. Strain OT10<sup>T</sup> exhibited characteristics, such as Gram-stain-negative, oxidase positive, motile, strictly aerobic and rod shaped. The cells had multiple flagella at one end, arranged in a lophotrichous pattern. The predominant cellular fatty acids in OT10<sup>T</sup> were C<sub>18:1</sub> ω7c/C<sub>18:1</sub> ω6c and C<sub>18:1</sub> 2OH; ubiquinone (Q)-10 was identified as the sole quinone. Major polar lipids included phosphatidylglycerol, phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylcholine and two aminolipids. The G+C content of the genome was determined to be 72.6 mol%. Phylogenetic analysis based on 16S rRNA gene sequence similarities revealed that strain OT10<sup>T</sup> is closely related to <i>Roseomonas gilardii</i> subsp. <i>gilardii</i> ATCC 49956<sup>T</sup> (97.7%), <i>Roseomonas gilardii</i> subsp. <i>rosea</i> ATCC BAA-691<sup>T</sup> (97.7%) and <i>R. mucosa</i> ATCC BAA-692<sup>T</sup> (97.5%). For the comparative genomic analyses, whole-genome sequencing was also conducted for strain OT10<sup>T</sup>. Considering the chemotaxonomic, genotypic and phenotypic features, as well as the low average nucleotide identity and digital DNA-DNA hybridization values compared to its closest phylogenomic neighbours, OT10<sup>T</sup> is proposed to be a novel species named <i>Roseomonas cutis</i> sp. nov., with OT10<sup>T</sup> designated as the type strain (=KCTC 92087<sup>T</sup> =JCM 34968<sup>T</sup>).</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":"142948770","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":"Addition of Section 10, Rules 66-73 for further integration of <i>Candidatus</i> names into the International Code of Nomenclature of Prokaryotes.","authors":"Aharon Oren","doi":"10.1099/ijsem.0.006638","DOIUrl":"https://doi.org/10.1099/ijsem.0.006638","url":null,"abstract":"<p><p>Following a proposal for further integration of <i>Candidatus</i> names into the International Code of Nomenclature of Prokaryotes, I here 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":"142948825","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>Stachybotrys qujingensis</i> sp. nov., a new hyphomycete from desertified rocky soil in southwest China.","authors":"Xing-Wen Dai, Zhi-Yu Ren, Xue-Rong Pan, Ze-Fen Yu","doi":"10.1099/ijsem.0.006664","DOIUrl":"https://doi.org/10.1099/ijsem.0.006664","url":null,"abstract":"<p><p>Two strains of <i>Stachybotrys</i>, identified based on morphology and phylogenetic analysis, were isolated from rocky desertification soils in Yunnan province. Phylogenetic analyses inferred from three loci (the internal transcribed spacer of the nuclear ribosomal RNA gene, β-tubulin and RNA polymerase II second-largest subunit) showed that the two strains formed a single clade and were introduced as a new species of <i>Stachybotrys</i>, <i>S. qujingensis. S. qujingensis</i> is characterized by having ampulliform or broadly fusiform conidiogenous cells and dark olivaceous-green, oblong-ellipsoidal conidia. Phylogenetically, <i>S. qujingensis</i> is most closely related to <i>S. musae</i>, but it distinguishes the latter by longer and narrower conidia. Descriptions, illustrations and phylogenetic placement of <i>S. qujingensis</i> were provided.</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":"143065693","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}