Updating the repertoire of cultured bacteria from the human being
2021
Diakite, Ami | Dubourg, Grégory | Raoult, Didier
The recent renewal of cultural approach has substantially enriched knowledge of the human microbiota, notably through the discovery of new taxa from various anatomical sites. As an increasing number of these recent species are currently considered beneficial or harmful for human health, a constant updating of the repertoire of bacteria and archaea isolated from humans by culture is essential. Herein, we show that the number of cultured bacterial species associated with human beings increased, from 2776 in 2018, to 3253 in 2020, representing a 17% increase in 2 years by adding 477 species, of which 64% are new species (N = 307). A wide majority of the species added (i.e., 63%) were isolated using the culturomics approach, while 16% were cultured as part of clinical microbiology laboratories. Human microbiota studies would benefit from the completeness of the repertoire of bacteria associated with human beings, which would require continued efforts to culture microbes from human specimens.
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