New preprint! Cell division has to happen at the right place but how Archaea pick that place is unknown. We now identified a three-protein system, Dip, that positions the divisome at midcell in H. volcanii and is broadly conserved across Archaea. A thread 🧵
www.biorxiv.org/content/10.6...
Excited to say that my new paper with @maxlechte.bsky.social (and others not on bluesky) has come out in @nature.com! Study of sediments, geochemistry and fossils from rocks 1.75 to 1.4 billion years old indicate that the oldest known #eukaryotes were aerobic and benthic!
#protists
rdcu.be/fjNgL
Eukaryogenesis was about more than a proteobacterium hitching a lift with an archaeon. Genes from other kinds of bacteria came along for the ride, stitched together with viruses. Paper in @nature.com www.nature.com/articles/s41...
Nature - Integrated palaeontological, sedimentological and geochemical analyses of ancient rocks from Australia show that early eukaryotes were largely restricted to oxygenated benthic habitats,...
Can vouch! I worked a lot with Dani and he's one of the most thoughtful, generous scientists I know. If you're into archaea and want a PI who invests in his people (and yes, the cake breaks are real), apply. You won't regret it.
Do biofilms give an ecological advantage? Yes!
A fantastic follow-up to our previous biofilm work in ammonia-oxidizing archaea:
"Biofilm Lifestyle Drives Ecophysiological Niche Expansion in an Archaeal Soil Nitrifier"
www.biorxiv.org/content/10.6...
Congratulations to all authors! #archaea
Leigh Anne Riedman
Sonja-Verena Albers
Henry Gee
We are excited to share a new preprint from Dimitris Dalkidis that identifies the effects of inhibitors DMPP and ATU in ammonia-oxidizing archaea! #archaea
"Common nitrification inhibitors exhibit varied physiological mechanisms on an ammonia-oxidizing microorganism"
www.biorxiv.org/content/10.6...
Chromatin organization in Asgard archaea: histones, SMC complexes, and the archaeal roots of eukaryotic chromatin: Trends in Genetics www.cell.com/trends/genet...
New review by @jvhooff.bsky.social & @damelab.bsky.social
The genomes of organisms across the tree of life are structurally and functionally
organized into chromatin. In eukaryotes, within an organelle called the nucleus, chromatin
is shaped by histones and ...
Archaea the hornets of the microbial world. Discuss.
www.biorxiv.org/content/10.6...
TLDR: Archaeon kills bacterium with secreted phospholipase. Pretty nifty way to kill bacteria if you are a microbe with a very different lipid make-up, I reckon. No need to worry about accidentally killing yourself.
🧵 New pre-print out from my time at @mib-wur.bsky.social
showing how the titration of the initiator protein DnaA on the chromosome of E. coli can generate stable DNA replication @hohlbeinlab.bsky.social @nicoc-micsynmet.bsky.social
doi.org/10.64898/202...
niels-fischer.bsky.social
Tobias Warnecke
Lorenzo Olivi
I'm looking for an enthusiastic student to join my team as a PhD candidate on archaeal genome evolution 🦠💻
Work in beautiful Utrecht, at @binfutrecht.bsky.social, an international group full of caring, amazing scientists, and with frequent cake breaks!
www.uu.nl/en/organisat...
Please share! 🙏
www.uu.nl
Daniel Tamarit
www.biorxiv.org
Archaea kill bacteria, at least on occasion. The molecular underpinnings of these lethal interactions are barely understood. Here, we describe cinquedea, an α/β hydrolase secreted by the halophilic ar...
Phylogenomic reconstruction of the proteome of the last eukaryotic common ancestor sheds light on the origin of eukaryotes, indicating an important role of horizontal transfer of genes from diverse ba...
www.nature.com
rdcu.be
Nature Structural & Molecular Biology - Schöndorf and Petrychenko et al. show that mitochondrial translation speed is coupled to OXA1L-mediated inner membrane insertion, with...
