
Masaru K. Nobu
@masarunobu
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Japanese-American microbiologist/engineer exploring metabolism in symbiosis, evolution, and biotechnology
Yokosuka, Kangawa
Joined November 2009
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 Work led by a former student Huang Yan, congratulations! https://t.co/icc1raepU6
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Here’s our study earlier from this year describing its unique symbiotic lifestyle! https://t.co/tGEr7WxLJj
nature.com
Nature Microbiology - Marine Group A isolate IA91 captures peptidoglycan fragments produced by other growing bacteria and uses them to build its own cell wall, an effective and potentially common...
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Excited to share our new isolate from the phylum Fidelibacterota (formerly Marine Group A / SAR406 / Candidatus Marinimicrobia) via IJSEM, an effort led by T Katayama https://t.co/hKTgGVGnFO
microbiologyresearch.org
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Our latest preprint is out! This paper led by @SukhwanYoon uncovers a new process controlling the global hydrogen and nitrogen cycles, i.e. the direct coupling of hydrogen oxidation and ammonification. A beautiful combination of isolation, bioreactor, and systems biology studies.
Our new discovery of hydrogenotrophic DNRA now in biorxiv! Two distinct Campylobacterota isolates found to couple hydrogen oxidation with DNRA, challenging traditional C:N ratio paradigm. https://t.co/QYBOXJjrzc
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A petition to support the “Best of Both Worlds proposal” led by Markus Göker. Please sign if you support! If you have constructive criticism, make them heard! https://t.co/7vW1FZueVv
ipetitions.com
The SeqCode removes the incentive to cultivate and deposit from prokaryotic nomenclature, reduces scientific replicability, undermines a scientific standard, and is fundamentally unfair, giving equal...
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SeqCode to provide a framework for organizing and naming uncultured taxa, which addresses an important issue in microbiology that has become very messy over recent years. home page: https://t.co/OsbCEJc2yS Hedlund et al. Nature Microbiology 2022: https://t.co/jtr0qiIgXo
nature.com
Nature Microbiology - SeqCode is the result of a community effort to unify nomenclature for uncultured and cultured prokaryotes using genome sequences.
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“Best of both worlds proposal” to extend the ICNP to accommodate names for uncultured taxa while also protecting culture collections and, by extension, the field. Abrahal et al. IJSEM 2024 https://t.co/NkE9xufyV6
microbiologyresearch.org
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Most are probably aware of the disagreement between ICSP/ICNP and SeqCode, but if this hasn’t made it your way yet, please take a moment to read up on both and discuss. Both big efforts trying to support our field, discussing their pros/cons is critical. Links coming up!
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A post accompanying paper on validation of kingdom Promethearchaeati now on @MicrobioSoc’s blog! Importance & appreciation of culture collections, an IMHO under-appreciated foundation for #microbiology, highlighted. Kingdom name’s background discussed. https://t.co/CbW62QCssl
microbiologysociety.org
Dr Hiroyuki Imachi and Dr Masaru K. Nobu take us behind the scenes of their latest publication 'Promethearchaeum syntrophicum gen. nov., sp. nov., an anaerobic, obligately syntrophic archaeon, the...
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Hoping this helps stimulates even deeper research on eukaryogenesis and constructive discussion between ICSP and SeqCode on a solution for prokaryotic taxonomy and nomenclature and protecting culture collections, both foundations of microbiology research!
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1st isolate of #Asgard #archaea Promethearchaeum syntrophicum and a new archaeal kingdom Promethearchaeati now on IJSEM! Major efforts @hiro_imachi #jcm to make the strain publicly available! Blog coming up on the story and taxonomy. #ICSP #microbiology
https://t.co/NOgoosyeot
microbiologyresearch.org
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Our study introduced on PNAS Showcase on Kudos, “Photosynthesis’ three billion year history”!! https://t.co/qKMFOAfaV5
growkudos.com
Photosynthesis is the foundation for nearly all of our planet’s ecosystems. Life harnessing light energy through this metabolism was undoubtedly a landmark event in the development of modern life and...
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生命が光エネルギーを掴んだのは30億年以上も前、バクテリアはその古代生命の末裔、酸素を作る能力は生命史中盤!? 先日発表した論文の解説記事を書いてみました、よかったらインタビュー記事と合わせて。 「光合成の30億年以上に渡る歴史の解明!」 https://t.co/baPmNUWuMp
jamstec.go.jp
左から、Masaru K. Nobu (延 優)(超先鋭研究開発部門)、塚谷祐介(海洋機能利用部門)、西原亜理沙(研究当時・産業技術総合研究…
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🤯#光合成生物 の起源を突き止めた☀️ 植物が行うことで広く知られている光合成🌲☀️ この光合成を最初に始めた生物の起源は、実はよくわかっていなかったのですが、#JAMSTEC の延主任研究員らの研究で、その起源は #シアノバクテリア を含む #テラバクテリア
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なぜ生物は酸素を作り始めたのか。最初に光合成をした生物は?地球生命の共通祖先の姿を追う! : https://t.co/O3pB3bRGNi #ブルーバックス
gendai.media
地球に生命が誕生したのはおよそ40億年前といわれています。地球上に存在するさまざまな生物。では、その祖先はどこまでさかのぼることができるのでしょうか?光合成をおこなうバクテリアに注目し、その遺伝子解析から光合成生物の共通祖先が「テラバクテリアI」という系統に属することを発見したJAMSTECの延優(Masaru K. Nobu)さん。光合成の起源から生命の3つのドメインについて、そして「LU...
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光合成を行う生物はいつ誕生したのか?地球生命史年表が書き変わる大発見に迫る! : https://t.co/PHHONxATvY #ブルーバックス
gendai.media
植物は光合成をしています。では、この光合成を行う生物はいつ誕生したのでしょうか? 科学に詳しい方なら、約25億年前にシアノバクテリアが酸素をつくるようになって……と答えるかもしれません。しかし、その仮説が変わる大発見をしたのが、海洋研究開発機構(JAMSTEC)主任研究員の延優(Masaru K. Nobu)さんです。生命はなぜ光合成をはじめたのか? それはいつ、誰がはじめたのか? この問い...
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We traced #photosynthesis deep into the history of #Bacteria & #Earth! Vertical #evolution in Terrabacteria, a non-O2-generating origin, later rise of O2 generation and even later Cyanobacteria, & more. On PNAS w @thermo_microbes @tsuka_pennstate @PNASNews
https://t.co/u3Zr4if2Vc
pnas.org
Life harnessing light energy transformed the relationship between biology and Earth—bringing a massive flux of organic carbon and oxidants to Earth...
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A bacterium that can’t make its own cell wall without a partner!? Our new isolate from the uncultured phylum Marinimicrobia/SAR406/Marine Group A/Marinisomatota #bacteria #microbiology #ecology
https://t.co/tGEr7WxLJj
nature.com
Nature Microbiology - Marine Group A isolate IA91 captures peptidoglycan fragments produced by other growing bacteria and uses them to build its own cell wall, an effective and potentially common...
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Excited to share our surprising discovery of a highly novel photosynthetic bacterium from #Boreal #Shield #lakes in Canada! Now published in @Nature , over six years after our first enrichment culture A long thread 🧵 ⬇️ 1/ https://t.co/FJKlL7j2Hc
nature.com
Nature - Cultivation of a new anoxygenic phototrophic bacterium from Boreal Shield lake water—representing a transition form in the evolution of photosynthesis—offers insights into how...
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Dead cell-eating anaerobic bacteria! Some cool TEM images. Huge effort from Yuga Hirakata. https://t.co/vBIASXr5LH
#bacteria #microbiology #ecology #microbes #syntrophy #symbiosis
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