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Published on: August 23, 2019
Lacticaseibacillus jixiensis sp. nov., Isolated from Traditional Chinese Pickle
Si-Tong Song1, Chun Yan Li2, Chun Tao Gu3
1College of Life Sciences, Northeast Agricultural University, Harbin, 150030, PR China.
Abstract:
A novel lactic acid bacterial strain (designated N163-3-2T), isolated from traditional Chinese pickle ('Suan cai'), was characterized using a polyphasic approach. Strain N163-3-2T was most closely related to the type strains of Lacticaseibacillus baoqingensis, Lacticaseibacillus manihotivorans, and Lacticaseibacillus porcinae, having 97.9-98.4% 16S rRNA gene, 82.0-85.1% pheS, 87.5-87.8% rpoA, and 85.8-86.7% concatenated pheS and rpoA sequence similarities. Strain N163-3-2T had 74.4-81.7% ANI, 22.6-23.9% dDDH, and 74.0-75.1% AAI values with L. baoqingensis 47-3T, L. manihotivorans DSM 13343T and L. porcinae JCM 19617T, less than the threshold for species demarcation (95-96%, 70% and 95-96%, respectively), indicating that strain N163-3-2T represented a novel species of the genus Lacticaseibacillus. Based upon the data obtained in the present study, a novel species, Lacticaseibacillus jixiensis sp. nov., is proposed, and the type strain is N163-3-2T (= CCTCC AB 2024125T = JCM 36999T).
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