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Mitsuo Sakamoto

@m-sakamoto.bsky.social
20 followers 42 following 13 posts

Curator in charge of anaerobic bacteria at #JCM. Microbial taxonomist, especially human gut bacteria. www.researchgate.net/profile/Mitsuo…

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Mitsuo Sakamoto @m-sakamoto.bsky.social · 09/09/2026
Anaerostipes stercorihominis sp. nov., isolated from human faeces - www.microbiologyresearch.org/content/jour... 大学の後輩との共著論文を発表しました。
microbiologyresearch.org
Anaerostipes stercorihominis sp. nov., isolated from human faeces
The genus Anaerostipes is one of the major butyrate-producing genera in the gut microbiota of healthy human adults. During a culturomics study of the human gut, strain 17EGHSPOS18-1T was isolated from...
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Reposted by Mitsuo Sakamoto
Nature Microbiology @natmicrobiol.nature.com · 26/08/2026
Out Now! A roadmap to create FAIR collections of microbial strains #MicroSky
go.nature.com
A roadmap to create FAIR collections of microbial strains
Nature Microbiology, Published online: 26 August 2026; doi:10.1038/s41564-026-02446-9Here the authors propose guidance on the process of establishing a state-of-the-art collection of microorganisms, including project planning, strain deposition and the naming of new taxa.
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Reposted by Mitsuo Sakamoto
Thomas Clavel @tclavel.bsky.social · 26/08/2026
Drawing on the team’s knowledge acquired over the years, we share our thoughts here on how to enhance microbiome research with FAIR collections of microbial strains: 🔥 www.nature.com/articles/s41... @nfdi4microbiota.bsky.social, @spp2474.bsky.social, @dsmz.bsky.social, @natmicrobiol.nature.com.
nature.com
A roadmap to create FAIR collections of microbial strains - Nature Microbiology
Here the authors propose guidance on the process of establishing a state-of-the-art collection of microorganisms, including project planning, strain deposition and the naming of new taxa.
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Mitsuo Sakamoto @m-sakamoto.bsky.social · 26/08/2026
A co-authored paper has been published in Nature Microbiology. rdcu.be/fCdKr
rdcu.be
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Mitsuo Sakamoto @m-sakamoto.bsky.social · 08/04/2026
Our paper (Kato et al.), "Whole-genome sequencing of diverse 351 cultured prokaryotes including as-yet-unsequenced type strains", has been published. genome.cshlp.org/content/36/4...
genome.cshlp.org
Whole-genome sequencing of diverse 351 cultured prokaryotes including as-yet-unsequenced type strains
An international, peer-reviewed genome sciences journal featuring outstanding original research that offers novel insights into the biology of all organisms
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Mitsuo Sakamoto @m-sakamoto.bsky.social · 23/02/2026
We have announced two new species of gut bacteria. Additionally, we have reclassified the long-established Ruminococcus albus into the genus Hominimerdicola. www.microbiologyresearch.org/content/jour...
microbiologyresearch.org
Hominimerdicola intestinalis sp. nov. and Ruminococcus sporogenes sp. nov., isolated from human faeces, and reclassification of Ruminococcus albus Hungate 1957 as Hominimerdicola alba comb. nov.
Obligately anaerobic, Gram-stain-positive staphylococci, strain 21CYCFAH17_ST, and coccobacilli, strain 25CYCFAH16T, were isolated from faecal samples of healthy Japanese volunteers. Strain 21CYCFAH17...
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Mitsuo Sakamoto @m-sakamoto.bsky.social · 31/01/2026
A paper concerning the genus Faecalibacterium has been published. onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Faecalibacterium
Fae.ca.li.bac.te'ri.um. N.L. masc./fem. adj. faecalis, pertaining to feces; Gr. neut. dim. n. baktêrion, a small rod; N.L. neut. n. Faecalibacterium, rod from feces, as this bacterium is present in h....
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Mitsuo Sakamoto @m-sakamoto.bsky.social · 19/01/2026
We have reclassified the genus Dysgonomonas. www.microbiologyresearch.org/content/jour...
microbiologyresearch.org
Reclassification of the genus Dysgonomonas and description of Dysgonomonas reticulitermitis sp. nov. and Viscerimonas tarda gen. nov., sp. nov. from the gut of the subterranean termite Reticulitermes ...
The genus Dysgonomonas, established in 2000 and currently comprising nine isolated species, belongs to the order Bacteroidales. Despite its increasing ecological and clinical relevance, the genus rema...
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Mitsuo Sakamoto @m-sakamoto.bsky.social · 07/01/2026
We have reclassified the genus Coprococcus. www.microbiologyresearch.org/content/jour...
microbiologyresearch.org
Proposal of two novel species, Allocoprococcus similis gen. nov., sp. nov. and Faecalimonas hominis sp. nov., isolated from human faeces and genome-based reorganization of the genus Coprococcus
The obligately anaerobic, Gram-stain-positive coccobacilli strains OB7620T and OB7656T were isolated from faecal samples of healthy Japanese volunteers. Strain OB7620T showed the highest 16S rRNA gene...
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Mitsuo Sakamoto @m-sakamoto.bsky.social · 08/07/2025
Check out our really exciting paper regarding a new isolation method for gut bacteria, which we are very proud of. www.microbiologyresearch.org/content/jour...
microbiologyresearch.org
Difficult-to-culture micro-organisms specifically isolated using the liquid-liquid co-culture method – towards the identification of bacterial species and metabolites supporting their growth
In this study, the liquid-liquid co-culture method was applied using faecal samples and specific bacterial species as growth-supporting bacteria. We aimed to isolate new, difficult-to-culture bacteria...
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Mitsuo Sakamoto @m-sakamoto.bsky.social · 05/06/2025
Genome-based reclassification of the genus Lactococcus and two novel species Pseudolactococcus yaeyamensis gen. nov., sp. nov. and Lactovum odontotermitis sp. nov. isolated from the gut of termites - www.microbiologyresearch.org/content/jour... The genus Lactococcus was reclassified into two genera.
microbiologyresearch.org
Genome-based reclassification of the genus Lactococcus and two novel species Pseudolactococcus yaeyamensis gen. nov., sp. nov. and Lactovum odontotermitis sp. nov. isolated from the gut of termites
The genus Lactococcus was proposed by Schleifer et al. by separating Lactococcus lactis from the genus Streptococcus. Although the family Streptococcaceae consists of four genera, each genus contains ...
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Mitsuo Sakamoto @m-sakamoto.bsky.social · 03/06/2025
Faecalibacterium langellae sp. nov. isolated from human faeces - www.microbiologyresearch.org/content/jour... We have announced a new species of the genus Faecalibacterium.
microbiologyresearch.org
Faecalibacterium langellae sp. nov. isolated from human faeces
The genus Faecalibacterium is one of the major butyrate-producing bacteria in the human gut. Due to its production of beneficial metabolites and reduced populations in diseased patients, it is regarde...
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Reposted by Mitsuo Sakamoto
Thomas Clavel @tclavel.bsky.social · 06/05/2025
Very happy that HiBC is out: rdcu.be/ekSCO 🔥 @natcomms.nature.com Excellent team spirit, and, as always, great driving factor by @tcahitch.bsky.social ⭐⭐⭐⭐ We hope that these bacterial isolates from the human gut will facilitate many studies by others... 😀
rdcu.be
HiBC: a publicly available collection of bacterial strains isolated from the human gut
Nature Communications - Here, the authors present and characterise a collection of human gut bacteria including novel taxa associated with health conditions and a large diversity of plasmids. All...
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Reposted by Mitsuo Sakamoto
Hiro Imachi @hiro-imachi.bsky.social · 27/02/2025
Isolated in just 3 years! (previously, 12 years). We obtained two strains from 'Hodarchaeales', proposed to be closest to our archaeal ancestor. Our analysis suggests the ancestor was an anaerobic, syntrophic, peptidotrophic, archaeon with a simple intracellular structure and possible aerotolerance.
biorxiv.org
Eukaryotes' closest relatives are internally simple syntrophic archaea
Eukaryotes are theorized to have originated from an archaeal phylum Promethearchaeota (formerly 'Asgard' archaea)1,2. The first cultured representatives revealed valuable insight3,4 but are distantly ...
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Reposted by Mitsuo Sakamoto
Nature Microbiology @natmicrobiol.nature.com · 20/02/2025
Read the paper here: www.nature.com/articles/s41... #microsky 🧪🦠☕
nature.com
Coffee consumption is associated with intestinal Lawsonibacter asaccharolyticus abundance and prevalence across multiple cohorts - Nature Microbiology
Coffee consumption is associated with the presence and abundance of a specific member of the human gut microbiome, Lawsonibacter asaccharolyticus, and changes to the plasma metabolome.
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Mitsuo Sakamoto @m-sakamoto.bsky.social · 14/02/2025
Faecalibacterium prausnitzii strain A2-165 has already been reclassified as Faecalibacterium duncaniae. Our article reached over 45 citations. www.microbiologyresearch.org/content/jour...
microbiologyresearch.org
Genome-based, phenotypic and chemotaxonomic classification of Faecalibacterium strains: proposal of three novel species Faecalibacterium duncaniae sp. nov., Faecalibacterium hattorii sp. nov. and Faec...
Faecalibacterium prausnitzii is one of the most important butyrate-producing bacteria in the human gut. Previous studies have suggested the presence of several phylogenetic groups, with differences at...
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Mitsuo Sakamoto @m-sakamoto.bsky.social · 14/02/2025
Our article reached over 60 citations. Microbial interaction between the succinate‐utilizing bacterium Phascolarctobacterium faecium and the gut commensal Bacteroides thetaiotaomicron - Ikeyama - 2020 - onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Microbial interaction between the succinate‐utilizing bacterium Phascolarctobacterium faecium and the gut commensal Bacteroides thetaiotaomicron
Succinate production by Bacteroides thetaiotaomicron supported the growth of Phascolarctobacterium faecium and concomitant propionate production via the succinate pathway. We analyzed the transcripti....
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Mitsuo Sakamoto @m-sakamoto.bsky.social · 14/02/2025
Great to see our latest paper on new species published in #IJSEM: Four species were isolated from a fecal sample in a patient with Parkinson’s disease with a history of duodenal resection: www.microbiologyresearch.org/content/jour...
microbiologyresearch.org
Desulfovibrio falkowii sp. nov., Porphyromonas miyakawae sp. nov., Mediterraneibacter flintii sp. nov. and Owariibacterium komagatae gen. nov., sp. nov., isolated from human faeces
Small, obligately anaerobic strains 13CB8CT, 13CB11CT, 13CB18CT and 13GAM1GT were isolated from a faecal sample in a patient with Parkinson’s disease with a history of duodenal resection. After conduc...
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