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  • Title: Lactobacillus jixianensis sp. nov., Lactobacillus baoqingensis sp. nov., Lactobacillus jiayinensis sp. nov., Lactobacillus zhaoyuanensis sp. nov., Lactobacillus lindianensis sp. nov., Lactobacillus huananensis sp. nov., Lactobacillus tangyuanensis sp. nov., Lactobacillus fuyuanensis sp. nov., Lactobacillus tongjiangensis sp. nov., Lactobacillus fujinensis sp. nov. and Lactobacillus mulengensis sp. nov., isolated from Chinese traditional pickle.
    Author: Long GY, Gu CT.
    Journal: Int J Syst Evol Microbiol; 2019 Aug; 69(8):2340-2353. PubMed ID: 31162009.
    Abstract:
    Thirty Gram-stain-positive bacterial strains were isolated from Chinese traditional pickle. The strains were characterized using a polyphasic taxonomic approach, including 16S rRNA gene sequence analysis, pheS gene sequence analysis, rpoA gene sequence analysis, fatty acid methyl ester analysis, determination of DNA G+C content, determination of average nucleotide identity (ANI), in silico DNA-DNA hybridization (isDDH), determination of average amino acid identity (AAI) and an analysis of phenotypic features. The data demonstrated that the 30 strains represented 11 novel species belonging to the genus Lactobacillus, strains 159-4T, 47-3T, 257-1T, 187-3T, 220-4T, 151-2BT, 137-3T, 244-4T, 218-10T, 218-6T and 112-3T were designated as the type strains. Strains 159-4T and 47-3T were related to the type strains of Lactobacillus porcinae, Lactobacillus manihotivorans, Lactobacillus nasuensis, Lactobacillus camelliae, Lactobacillus pantheris, Lactobacillus thailandensis, Lactobacillus sharpeae and Lactobacillus songhuajiangensis, having 92.0-98.9 % 16S rRNA gene sequence similarities, 58.1-84.7 % pheS gene sequence similarities and 61.4-90.3 % rpoA gene sequence similarities. Strains 257-1T and 187-3T were related to the type strains of Lactobacillus coryniformis, Lactobacillus iwatensis, Lactobacillus backii, Lactobacillus rennini and Lactobacillus bifermentans, having 93.5-99.3 % 16S rRNA gene sequence similarities, 67.7-81.8 % pheS gene sequence similarities and 77.0-96.2 % rpoA gene sequence similarities. Strains 220-4T, 151-2BT, 137-3T, 244-4T, 218-10T, 218-6T and 112-3T were closely related to the type strains of Lactobacillus paucivorans, Lactobacillus brevis, Lactobacillus hammesii, Lactobacillus senmaizukei, Lactobacillus parabrevis, Lactobacillus yonginensis, Lactobacillus koreensis and Lactobacillus cerevisiae, having 95.6-99.9 % 16S rRNA gene sequence similarities, less than 93.9 % pheS gene sequence similarities and 87.0-99.7 % rpoA gene sequence similarities. ANI, isDDH and AAI values between strains 159-4T, 47-3T, 257-1T, 187-3T, 220-4T, 151-2BT, 137-3T, 244-4T, 218-10T, 218-6T, 112-3T and type strains of phylogenetically related species were less than 92.7, 48.4 and 96.6 %, respectively, confirming that they represent 11 novel species within the genus Lactobacillus. Based upon the data of polyphasic characterization obtained in the present study, eleven novel species, Lactobacillusjixianensis sp. nov., Lactobacillusbaoqingensis sp. nov., Lactobacillusjiayinensis sp. nov., Lactobacilluszhaoyuanensis sp. nov., Lactobacilluslindianensis sp. nov., Lactobacillushuananensis sp. nov., Lactobacillustangyuanensis sp. nov., Lactobacillusfuyuanensis sp. nov., Lactobacillustongjiangensis sp. nov., Lactobacillusfujinensis sp. nov. and Lactobacillusmulengensis sp. nov., are proposed and the type strains are 159-4T (=NCIMB 15175T=CCM 8911T), 47-3T (=NCIMB 15165T=CCM 8903T=LMG 31064T), 257-1T (=NCIMB 15166T=CCM 8904T=LMG 31065T), 187-3T (=NCIMB 15172T =CCM 8910T), 220-4T (=NCIMB 15163T =CCM 8902T=KCTC 21136T), 151-2BT (=NCIMB 15164T=CCM 8913T=KCTC 21129T=LMG 31063T), 137-3T (=NCIMB 15170T=CCM 8907T=KCTC 21125T=LMG 31053T), 244-4T (=NCIMB 15168T=CCM 8906T=KCTC 21137T=LMG 31052T), 218-10T (=NCIMB 15167T=CCM 8905T=KCTC 21135T =LMG 31055T), 218-6T (=NCIMB 15171T=CCM 8908T=KCTC 21134T =LMG 31067T) and 112-3T (=NCIMB 15174T=CCM 8909T=KCTC 21123T=LMG 31049T), respectively.
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