从患有特应性皮炎的婴儿粪便中分离出的11号婴儿肠球菌。

IF 2 3区生物学 Q4 MICROBIOLOGY

International journal of systematic and evolutionary microbiology Pub Date : 2025-10-01 DOI:10.1099/ijsem.0.006950

Chin-Kan Chan, Li-Jyun Tsai, Misa Otoguro, Fujitoshi Yanagida, Yun-Shien Lee, Hui-Chung Wu, Yu-Chung Chang, Yi-Sheng Chen

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引用次数: 0

摘要

从一名患有特应性皮炎（AD）的10月龄男婴的粪便标本中分离出一种革兰氏阳性球菌状生物，编号为AD013-P3T。基于16S rRNA基因序列的系统发育分析显示，菌株AD013-P3T与diestrimenae肠球菌（98.7%）和asini肠球菌（97.8%）亲缘关系最密切。菌株AD013-P3T和E. diestrammenae JCM 18359T的两两平均核苷酸鉴定和数字DNA-DNA杂交的基因组比较结果分别为75.4-80.4%和22.1%。菌株AD013-P3T基因组DNA的G+C含量为43.5 mol%。菌株AD013-P3T在系统发育和表型上都与其他已建立的肠球菌不同。根据所提供的数据，菌株AD013-P3T代表了肠球菌属的一种新种，因此建议将其命名为Enterococcus infantis sp. 11 .。型应变为AD013-P3T （=NBRC 117136T=BCRC 81462T）。

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Enterococcus infantis sp. nov., isolated from the faeces of an infant with atopic dermatitis.

A Gram-positive, coccal-shaped organism, designated AD013-P3^T, was isolated from the stool specimen of a 10-month-old male infant with atopic dermatitis (AD). The phylogenetic analysis based on 16S rRNA gene sequences showed that strain AD013-P3^T was most closely related to Enterococcus diestrammenae (98.7%) and Enterococcus asini (97.8%). Genomic comparisons using pairwise average nucleotide identity and digital DNA-DNA hybridization analyses between strain AD013-P3^T and E. diestrammenae JCM 18359^T resulted in values of 75.4-80.4% and 22.1%, respectively. The G+C content of the genomic DNA of strain AD013-P3^T was 43.5 mol%. Strain AD013-P3^T is distinguishable from other established Enterococcus species both phylogenetically and phenotypically. Based on the data presented, strain AD013-P3^T represents a novel species of the genus Enterococcus, for which the name Enterococcus infantis sp. nov. is proposed. The type strain is AD013-P3^T (=NBRC 117136^T=BCRC 81462^T).

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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.