11号水獭链球菌、11号毒链球菌和毒链球菌亚群。hyiners无性系种群。11月从猪身上分离出来。

IF 2 3区生物学 Q4 MICROBIOLOGY

International journal of systematic and evolutionary microbiology Pub Date : 2025-01-01 DOI:10.1099/ijsem.0.006631

Tracy L Nicholson, Keira L Stuart, Darrell O Bayles

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引用次数: 0

摘要

在常规兽医体检中，从健康猪中分离到3株新型链球菌（29887T、29892T和29896T）。这三株革兰氏阳性球菌均为非运动性和非孢子形成性。获得每个菌株的完整基因组，并进行系统发育分析。29887T、29892T和29896T基因组与其他链球菌基因组的比较显示，数字DNA-DNA杂交（dDDH）值在21.2% ~ 53.9%之间，平均核苷酸一致性（ANI）值在70.00% ~ 94.44%之间。系统发育分析表明，29896T （S. suivaginalis sp. 11 .）、29887T （S. iners sp. 11 .）和29892T （S. iners subsp. 11 .）是3个菌株。hyiners无性系种群。ANI分析显示菌株29896T （S. suivaginalis sp. 11 .）和29887T （S. iners sp. 11 .）代表链球菌属新种，29892T （S. iners subsp. 11 .）代表链球菌属新种。hyiners无性系种群。十一月)代表了29887T （S. iners sp.十一月）的一个新亚种。根据本研究的综合资料，提出了11月链球菌（型株，29896T=NRRL B-65677T=NCTC 14941T）和11月链球菌（型株，29887T=NRRL B-65675T=NCTC 14939T）两个新种，以及1个新亚种，iners subsp。hyiners无性系种群。11 .（型应变，29892T=NRRL B-65676T=NCTC 14940T）。

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Streptococcus suivaginalis sp. nov., Streptococcus iners sp. nov. and Streptococcus iners subsp. hyiners subsp. nov. isolated from pigs.

Three novel strains within the genus Streptococcus (29887^T, 29892^T and 29896^T) were isolated from healthy pigs during routine veterinary physical exams. All three strains were non-motile and non-spore-forming Gram-positive cocci. The complete genome of each strain was attained, and phylogenetic analyses were performed. Comparison of the genomes of 29887^T, 29892^T and 29896^T to the genomes of other Streptococcus strains revealed digital DNA-DNA hybridization (dDDH) values between 21.2% and 53.9% and average nucleotide identity (ANI) values between 70.00% and 94.44%. Phylogenetic analyses suggested that each strain, 29896^T (S. suivaginalis sp. nov.), 29887^T (S. iners sp. nov.) and 29892^T (S. iners subsp. hyiners subsp. nov.), may represent a novel species within the genus Streptococcus, while ANI analysis indicated that strains 29896^T (S. suivaginalis sp. nov.) and 29887^T (S. iners sp. nov.) represent novel species within the genus Streptococcus, and 29892^T (S. iners subsp. hyiners subsp. nov.) represents a novel subspecies of 29887^T (S. iners sp. nov.). Based upon the combined data presented in this study, two novel species, Streptococcus suivaginalis sp. nov. (type strain, 29896^T=NRRL B-65677^T=NCTC 14941^T) and Streptococcus iners sp. nov. (type strain, 29887^T=NRRL B-65675^T=NCTC 14939^T) are proposed, and one novel subspecies, Streptococcus iners subsp. hyiners subsp. nov. (type strain, 29892^T=NRRL B-65676^T=NCTC 14940^T) is proposed.

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来源期刊

International journal of systematic and evolutionary microbiology 生物-微生物学

CiteScore

5.20

自引率

21.40%

发文量

426

审稿时长

1 months

期刊介绍： Published by the Microbiology Society and owned by the International Committee on Systematics of Prokaryotes (ICSP), a committee of the Bacteriology and Applied Microbiology Division of the International Union of Microbiological Societies, International Journal of Systematic and Evolutionary Microbiology is the leading forum for the publication of novel microbial taxa and the ICSP’s official journal of record for prokaryotic names. The journal welcomes high-quality research on all aspects of microbial evolution, phylogenetics and systematics, encouraging submissions on all prokaryotes, yeasts, microfungi, protozoa and microalgae across the full breadth of systematics including: Identification, characterisation and culture preservation Microbial evolution and biodiversity Molecular environmental work with strong taxonomic or evolutionary content Nomenclature Taxonomy and phylogenetics.