Enterococcus infantis sp. nov., isolated from the faeces of an infant with atopic dermatitis
A Gram-positive, coccal-shaped organism, designated AD013-P3<sup>T</sup>, 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<sup>T</sup> was most closely related to <i>Enterococcus diestrammenae</i> (98.7%) and <i>Enterococcus asini</i> (97.8%). Genomic comparisons using pairwise average nucleotide identity and digital DNA-DNA hybridization analyses between strain AD013-P3<sup>T</sup> and <i>E. diestrammenae</i> JCM 18359<sup>T</sup> resulted in values of 75.4-80.4% and 22.1%, respectively. The G+C content of the genomic DNA of strain AD013-P3<sup>T</sup> was 43.5 mol%. Strain AD013-P3<sup>T</sup> is distinguishable from other established <i>Enterococcus</i> species both phylogenetically and phenotypically. Based on the data presented, strain AD013-P3<sup>T</sup> represents a novel species of the genus <i>Enterococcus</i>, for which the name <i>Enterococcus infantis</i> sp. nov. is proposed. The type strain is AD013-P3<sup>T</sup> (=NBRC 117136<sup>T</sup>=BCRC 81462<sup>T</sup>).
Authors
- Yu-Chung Chang (ORCID: https://orcid.org/0000-0001-5420-631X)
- Yun‐Shien Lee (ORCID: https://orcid.org/0000-0001-9617-335X)
- Misa Otoguro (ORCID: https://orcid.org/0000-0002-3719-8220)
- Yi-sheng Chen (ORCID: https://orcid.org/0000-0001-7583-223X)
- Chin-Kan Chan
- Li-Jyun Tsai
- Fujitoshi Yanagida
- Hui‐Chung Wu
Institutions
- Ministry of Health and Welfare (KR)
- Ming Chuan University (TW)
- Tao Yuan General Hospital (TW)
- University of Yamanashi (JP)
Publication Details
- Journal
- INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
- Published
- 2025-10-24
- DOI
- https://doi.org/10.1099/ijsem.0.006950
- Primary Topic
- Probiotics and Fermented Foods
- Type
- article
- Field-Weighted Citation Impact
- 0.00