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<p>A novel bacterium of the genus <i>Lacticaseibacillus</i> (designated as N149-9<sup>T</sup>) was isolated from traditional Chinese pickle (‘Suan cai’), and was identified by a polyphasic taxonomic approach. Phylogenies based on 16S rRNA, <i>pheS</i>, <i>rpoA</i>, concatenated <i>pheS</i> and <i>rpoA</i>, and whole genome sequences indicated that strain N149-9<sup>T</sup> was related to the type strains of <i>Lacticaseibacillus parakribbianus</i>, <i>Lacticaseibacillus kribbianus</i>, <i>Lacticaseibacillus absianus</i> and <i>Lacticaseibacillus daqingensis</i>. Strain N149-9<sup>T</sup> was most closely related to <i>L. parakribbianu</i><i>s</i> YH-lacS6<sup>T</sup>, having 99.4% 16S rRNA gene, 96.3% <i>pheS</i>, 99.7% <i>rpoA</i> and 98.5% concatenated <i>pheS</i> and <i>rpoA</i> sequence similarities. Strain N149-9<sup>T</sup> had the highest average nucleotide identity (ANI, 93.5–93.6%) and digital DNA-DNA hybridization (dDDH, 52.4%) values with <i>L. parakribbianus</i> YH-lacS6<sup>T</sup>, less than the threshold for species demarcation, indicating that it represented a novel species within the genus <i>Lacticaseibacillus</i>. Based upon the data obtained in the present study, a novel species, <i>Lacticaseibacillus suihuaensis</i> sp. nov., is proposed, and the type strain is N149-9<sup>T</sup> (= CCTCC AB 2024126<sup>T</sup> = JCM 36998<sup>T</sup> = LMG 33660<sup>T</sup>). </p>

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Lacticaseibacillus suihuaensis sp. nov., Isolated from Traditional Chinese Pickle

  • 期刊论文

  • 发表日期：

    2025年7月12日

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  • Xin-Yu Zhu,
  • Chun Yan Li,
  • Hao Wang,
  • Chun Tao Gu

摘要

A novel bacterium of the genus Lacticaseibacillus (designated as N149-9T) was isolated from traditional Chinese pickle (‘Suan cai’), and was identified by a polyphasic taxonomic approach. Phylogenies based on 16S rRNA, pheS, rpoA, concatenated pheS and rpoA, and whole genome sequences indicated that strain N149-9T was related to the type strains of Lacticaseibacillus parakribbianus, Lacticaseibacillus kribbianus, Lacticaseibacillus absianus and Lacticaseibacillus daqingensis. Strain N149-9T was most closely related to L. parakribbianus YH-lacS6T, having 99.4% 16S rRNA gene, 96.3% pheS, 99.7% rpoA and 98.5% concatenated pheS and rpoA sequence similarities. Strain N149-9T had the highest average nucleotide identity (ANI, 93.5–93.6%) and digital DNA-DNA hybridization (dDDH, 52.4%) values with L. parakribbianus YH-lacS6T, less than the threshold for species demarcation, indicating that it represented a novel species within the genus Lacticaseibacillus. Based upon the data obtained in the present study, a novel species, Lacticaseibacillus suihuaensis sp. nov., is proposed, and the type strain is N149-9T (= CCTCC AB 2024126T = JCM 36998T = LMG 33660T).