RT Journal Article SR Electronic(1) A1 Suzuki-Hashido, Nami A1 Tsuchida, Sayaka A1 Hayakawa, Takashi A1 Sakamoto, Mitsuo A1 Azumano, Akinori A1 Seino, Satoru A1 Matsuda, Ikki A1 Ohkuma, Moriya A1 Ushida, KazunariYR 2021 T1 Lactobacillus nasalidis sp. nov., isolated from the forestomach of a captive proboscis monkey (Nasalis larvatus) JF International Journal of Systematic and Evolutionary Microbiology, VO 71 IS 4 OP SP 004787 DO https://doi.org/10.1099/ijsem.0.004787 PB Microbiology Society, SN 1466-5034, AB Three strains (YZ01T, YZ02 and YZ03) of Gram-stain-positive, facultatively anaerobic rods were isolated from the forestomach contents collected from a captive male proboscis monkey (Nasalis larvatus) at Yokohama Zoo in Japan. Phylogenetic analysis of the 16S rRNA gene sequences revealed that these strains belonged to the genus Lactobacillus . Based on the sequence similarity of the 16S rRNA gene, Lactobacillus delbrueckii subsp. indicus JCM 15610T was the closest phylogenetic neighbour to YZ01T. Sequence analyses of two partial concatenated housekeeping genes, the RNA polymerase alpha subunit (rpoA) and phenylalanyl-tRNA synthase alpha subunit (pheS) also indicated that the novel strains belonged to the genus Lactobacillus . The average nucleotide identity and digital DNA–DNA hybridization (dDDH) between L. delbrueckii subsp. indicus and YZ01T were 85.9 and 31.4 %, respectively. The phylogenetic tree based on the whole genomic data of strains YZ01T, YZ02 and YZ03 suggested that these three strains formed a single monophyletic cluster in the genus Lactobacillus , indicating that it belonged to a new species. The DNA G+C content of strain YZ01T was 51.6 mol%. The major fatty acids were C16 : 0 and C18 : 1 ω9c. Therefore, based on phylogenetic, phenotypic and physiological evidence, strains YZ01T, YZ02 and YZ03 represent a novel species of the genus Lactobacillus , for which the name Lactobacillus nasalidis sp. nov. is proposed with the type strain YZ01T (=JCM 33769T=DSM 110539T)., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.004787