Wow, our AEM paper on a new methane-oxidizing bacterium just got a Commentary! 🎉
Congrats Kambara-san—so happy to see the work getting recognized!
journals.asm.org/doi/10.1128/...
Congrats Kambara-san—so happy to see the work getting recognized!
journals.asm.org/doi/10.1128/...
Expansion of aerobic methanotrophy to the phylum of Actinomycetota and its environmental implications | Applied and Environmental Microbiology
The climate crisis is one of the most imminent threats to humanity and all life on our planet. Methane is not only the second most potent greenhouse gas (GHG) and is responsible for approximately 31% of GHG-induced global warming since the start of the industrial revolution (1) but is also the most rapid increasing GHG in the atmosphere (2). The latter is likely caused by increased microbiological production of methane from, e.g., wetlands (2). This fact stresses the importance of methanotrophic microbes that can degrade methane with and without oxygen (3, 4) and thereby fulfill a crucial role in our global climate.
journals.asm.org
September 17, 2025 at 4:06 AM
Wow, our AEM paper on a new methane-oxidizing bacterium just got a Commentary! 🎉
Congrats Kambara-san—so happy to see the work getting recognized!
journals.asm.org/doi/10.1128/...
Congrats Kambara-san—so happy to see the work getting recognized!
journals.asm.org/doi/10.1128/...
“Isolation of a new methanotroph belonging to Mycobacterium” is now out! Awesome work by my former postdoc Hiromi Kambara, who led this project all the way.
journals.asm.org/doi/10.1128/...
journals.asm.org/doi/10.1128/...
First isolation of a methanotrophic Mycobacterium reveals ammonia- and pH-tolerant methane oxidation | Applied and Environmental Microbiology
Methane is a significant contributor to climate change (27 times more potent as a
greenhouse gas than carbon dioxide), and the largest biological sink is methane-oxidizing
bacteria: methanotrophs. Alt...
journals.asm.org
August 1, 2025 at 6:37 AM
“Isolation of a new methanotroph belonging to Mycobacterium” is now out! Awesome work by my former postdoc Hiromi Kambara, who led this project all the way.
journals.asm.org/doi/10.1128/...
journals.asm.org/doi/10.1128/...
Would you like to work with us?
At JAMSTEC, we are recruiting postdoctoral researchers through the Young Research Fellow program.
This program allows fellows to independently pursue their own research projects.
www.jamstec.go.jp/recruit/e/jy...
At JAMSTEC, we are recruiting postdoctoral researchers through the Young Research Fellow program.
This program allows fellows to independently pursue their own research projects.
www.jamstec.go.jp/recruit/e/jy...
JAMSTEC Young Research Fellow (JYRF) | JAMSTEC - JAPAN AGENCY FOR MARINE-EARTH SCIENCE AND TECHNOLOGY
JAMSTEC Young Research Fellow (JYRF)
www.jamstec.go.jp
June 4, 2025 at 7:38 AM
Would you like to work with us?
At JAMSTEC, we are recruiting postdoctoral researchers through the Young Research Fellow program.
This program allows fellows to independently pursue their own research projects.
www.jamstec.go.jp/recruit/e/jy...
At JAMSTEC, we are recruiting postdoctoral researchers through the Young Research Fellow program.
This program allows fellows to independently pursue their own research projects.
www.jamstec.go.jp/recruit/e/jy...
Reposted by Hiro Imachi
New paper out!
We discovered a tiny archaeon with the smallest known archaeal genome — only 238 kbp!
Candidatus Sukunaarchaeum mirabile has almost no recognizable metabolic pathways and may rely heavily on a host to survive.
It also represents a novel, deep-branching lineage in the archaeal tree.
We discovered a tiny archaeon with the smallest known archaeal genome — only 238 kbp!
Candidatus Sukunaarchaeum mirabile has almost no recognizable metabolic pathways and may rely heavily on a host to survive.
It also represents a novel, deep-branching lineage in the archaeal tree.
A cellular entity retaining only its replicative core: Hidden archaeal lineage with an ultra-reduced genome https://www.biorxiv.org/content/10.1101/2025.05.02.651781v1
May 3, 2025 at 5:08 AM
New paper out!
We discovered a tiny archaeon with the smallest known archaeal genome — only 238 kbp!
Candidatus Sukunaarchaeum mirabile has almost no recognizable metabolic pathways and may rely heavily on a host to survive.
It also represents a novel, deep-branching lineage in the archaeal tree.
We discovered a tiny archaeon with the smallest known archaeal genome — only 238 kbp!
Candidatus Sukunaarchaeum mirabile has almost no recognizable metabolic pathways and may rely heavily on a host to survive.
It also represents a novel, deep-branching lineage in the archaeal tree.
Reposted by Hiro Imachi
Reposted by Hiro Imachi
The genomic information for our strains, which belong to the ‘Hodarchaeales', has been released. Due to a large-scale server replacement at DDBJ (DNA Database of Japan), the release has been delayed.
April 14, 2025 at 1:10 AM
The genomic information for our strains, which belong to the ‘Hodarchaeales', has been released. Due to a large-scale server replacement at DDBJ (DNA Database of Japan), the release has been delayed.
Reposted by Hiro Imachi
New isolates from eukaryote's closest archaeal relative: ‘Hodarchaeales’!! Syntrophic microaerotolerant peptide-degrading anaerobic archaea w/ simple cell structure & protrusions. Features conserved across the phylum provide new insight into our ancestor’s biology!
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
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 ...
www.biorxiv.org
February 27, 2025 at 4:25 AM
New isolates from eukaryote's closest archaeal relative: ‘Hodarchaeales’!! Syntrophic microaerotolerant peptide-degrading anaerobic archaea w/ simple cell structure & protrusions. Features conserved across the phylum provide new insight into our ancestor’s biology!
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
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.
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 ...
www.biorxiv.org
February 27, 2025 at 3:58 AM
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.
New bacterial phylum Minisyncoccota (formerly Ca. Patescibacteria or CPR) in the kingdom Bacillati.
Congratulations, Kuroda-san, Narihiro-san, and Nobu (@masarunobu.bsky.social)!
www.microbiologyresearch.org/content/jour...
Congratulations, Kuroda-san, Narihiro-san, and Nobu (@masarunobu.bsky.social)!
www.microbiologyresearch.org/content/jour...
Minisyncoccus archaeiphilus gen. nov., sp. nov., a mesophilic, obligate parasitic bacterium and proposal of Minisyncoccaceae fam. nov., Minisyncoccales ord. nov., Minisyncoccia class. nov. and Minisyn...
In the domain Bacteria, one of the largest, most diverse and environmentally ubiquitous phylogenetic groups, Candidatus Patescibacteria (also known as candidate phyla radiation/CPR), remains poorly ch...
www.microbiologyresearch.org
February 11, 2025 at 11:03 PM
New bacterial phylum Minisyncoccota (formerly Ca. Patescibacteria or CPR) in the kingdom Bacillati.
Congratulations, Kuroda-san, Narihiro-san, and Nobu (@masarunobu.bsky.social)!
www.microbiologyresearch.org/content/jour...
Congratulations, Kuroda-san, Narihiro-san, and Nobu (@masarunobu.bsky.social)!
www.microbiologyresearch.org/content/jour...
Methanol syntrophy!
A new form of syntrophic relationship between bacteria and archaea in the underground.
Congratulations, Huang-san and Nobu!
A new form of syntrophic relationship between bacteria and archaea in the underground.
Congratulations, Huang-san and Nobu!
Underground happy hour?
Excited to share our discovery of a new symbiosis between subsurface bacteria and archaea bridged by syntrophic transfer of the smallest alcohol—methanol! @nature.com
Work led by a former student Huang Yan, congratulations!
rdcu.be/d7W2s
Excited to share our discovery of a new symbiosis between subsurface bacteria and archaea bridged by syntrophic transfer of the smallest alcohol—methanol! @nature.com
Work led by a former student Huang Yan, congratulations!
rdcu.be/d7W2s
Methanol transfer supports metabolic syntrophy between bacteria and archaea
Nature - Zhaonella formicivorans produces methanol, for a novel syntrophic interaction, without requiring methylated compounds as an input.
rdcu.be
January 29, 2025 at 10:39 PM
Methanol syntrophy!
A new form of syntrophic relationship between bacteria and archaea in the underground.
Congratulations, Huang-san and Nobu!
A new form of syntrophic relationship between bacteria and archaea in the underground.
Congratulations, Huang-san and Nobu!
Why did an engineer become a researcher in biological evolution? My esteemed research partner, colleague, and friend, Masaru K. Nobu, is sharing some side stories about strain MK-D1 research.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Engineering history with Asgard archaea of the kingdom Promethearchaeati - Nature Microbiology
Multiple histories converge in Masaru Nobu’s story of culturing an archaeon closely related to us eukaryotes.
www.nature.com
November 30, 2024 at 12:30 AM
Why did an engineer become a researcher in biological evolution? My esteemed research partner, colleague, and friend, Masaru K. Nobu, is sharing some side stories about strain MK-D1 research.
www.nature.com/articles/s41...
www.nature.com/articles/s41...