RRC ID 66673
著者 Liou JS, Huang CH, Ikeyama N, Lee AY, Chen IC, Blom J, Chen CC, Chen CH, Lin YC, Hsieh SY, Huang L, Ohkuma M, Watanabe K, Sakamoto M.
タイトル Prevotella hominis sp. nov., isolated from human faeces.
ジャーナル Int J Syst Evol Microbiol
Abstract A strictly anaerobic predominant bacterium, designated as strain gm001T, was isolated from a freshly voided faecal sample collected from a healthy Taiwanese adult. Cells were Gram-stain-negative rods, non-motile and non-spore-forming. Strain gm001T was identified as a member of the genus Prevotella, and a comparison of 16S rRNA and hsp60 gene sequences revealed sequence similarities of 98.5 and 93.3 %, respectively, demonstrating that it was most closely related to the type strain of Prevotella copri. Phylogenomic tree analysis indicated that the gm001T cluster is an independent lineage of P. copri DSM 18205T. The average nucleotide identity, digital DNA‒DNA hybridization and average amino acid identity values between strain gm001T and P. copri DSM 18205T were 80.9, 28.6 and 83.8 %, respectively, which were clearly lower than the species delineation thresholds. The species-specific genes of this novel species were also identified on the basis of pan-genomic analysis. The predominant menaquinones were MK-11 and MK-12, and the predominant fatty acids were anteiso-C15 : 0, C15 : 0 and iso-C15 : 0. Acetate and succinate were produced from glucose as metabolic end products. Taken together, the results indicate that strain gm001T represents a novel species of the genus Prevotella, for which the name Prevotella hominis sp. nov. is proposed. The type strain is gm001T (=BCRC 81118T=JCM 33280T).
巻・号 70(8)
ページ 4767-4773
公開日 2020-8-1
DOI 10.1099/ijsem.0.004342
PMID 32697186
MeSH Adult Bacteria, Anaerobic / classification Bacterial Typing Techniques Base Composition DNA, Bacterial / genetics Fatty Acids / chemistry Feces / microbiology* Humans Nucleic Acid Hybridization Phylogeny* Prevotella / classification* Prevotella / isolation & purification RNA, Ribosomal, 16S / genetics Sequence Analysis, DNA Species Specificity Taiwan Vitamin K 2 / chemistry
リソース情報
一般微生物 JCM33280