RRC ID 66735
Author Kim JY, Whon TW, Lim MY, Kim YB, Kim N, Kwon MS, Kim J, Lee SH, Choi HJ, Nam IH, Chung WH, Kim JH, Bae JW, Roh SW, Nam YD.
Title The human gut archaeome: identification of diverse haloarchaea in Korean subjects.
Journal Microbiome
Abstract BACKGROUND:Archaea are one of the least-studied members of the gut-dwelling autochthonous microbiota. Few studies have reported the dominance of methanogens in the archaeal microbiome (archaeome) of the human gut, although limited information regarding the diversity and abundance of other archaeal phylotypes is available.
RESULTS:We surveyed the archaeome of faecal samples collected from 897 East Asian subjects living in South Korea. In total, 42.47% faecal samples were positive for archaeal colonisation; these were subsequently subjected to archaeal 16S rRNA gene deep sequencing and real-time quantitative polymerase chain reaction-based abundance estimation. The mean archaeal relative abundance was 10.24 ± 4.58% of the total bacterial and archaeal abundance. We observed extensive colonisation of haloarchaea (95.54%) in the archaea-positive faecal samples, with 9.63% mean relative abundance in archaeal communities. Haloarchaea were relatively more abundant than methanogens in some samples. The presence of haloarchaea was also verified by fluorescence in situ hybridisation analysis. Owing to large inter-individual variations, we categorised the human gut archaeome into four archaeal enterotypes.
CONCLUSIONS:The study demonstrated that the human gut archaeome is indigenous, responsive, and functional, expanding our understanding of the archaeal signature in the gut of human individuals. Video Abstract.
Volume 8(1)
Pages 114
Published 2020-8-4
DOI 10.1186/s40168-020-00894-x
PII 10.1186/s40168-020-00894-x
PMID 32753050
PMC PMC7409454
MeSH Adult Aged Aged, 80 and over Archaea / classification* Archaea / genetics Archaea / isolation & purification* Female Gastrointestinal Microbiome* / genetics Humans Male Middle Aged Phylogeny RNA, Ribosomal, 16S / genetics Republic of Korea Young Adult
Resource
General Microbes JCM30028 JCM18368