@ulrichtechnau.bsky.social
Evolutionary Developmental Biologist, working on Nematostella and other Cnidaria, but also interested in all other aspects of Biology as well.
Reposted
“At 15, he was ranked last out of 250 students in a notorious biology report. His teacher wrote: “He will not listen but will insist on doing his work in his own way. I believe he has ideas about becoming a scientist; on his present showing, this is quite ridiculous.”
John Gurdon obituary: Biologist who made cloning possible
He showed that specialized cells retain the genes to form an organism.
www.nature.com
October 22, 2025 at 1:41 AM
“At 15, he was ranked last out of 250 students in a notorious biology report. His teacher wrote: “He will not listen but will insist on doing his work in his own way. I believe he has ideas about becoming a scientist; on his present showing, this is quite ridiculous.”
Reposted
Oben: Die Rue de Rivoli in Paris heute.
Unten: Die Rue de Rivoli 1983.
Und nein, die Autos fahren nicht einfach woanders. Sie haben sich in Luft aufgelöst, weil die Autofahrer zu Fahrradfahrern geworden sind.
Liebe alles daran❤️
Unten: Die Rue de Rivoli 1983.
Und nein, die Autos fahren nicht einfach woanders. Sie haben sich in Luft aufgelöst, weil die Autofahrer zu Fahrradfahrern geworden sind.
Liebe alles daran❤️
October 10, 2025 at 7:28 AM
Oben: Die Rue de Rivoli in Paris heute.
Unten: Die Rue de Rivoli 1983.
Und nein, die Autos fahren nicht einfach woanders. Sie haben sich in Luft aufgelöst, weil die Autofahrer zu Fahrradfahrern geworden sind.
Liebe alles daran❤️
Unten: Die Rue de Rivoli 1983.
Und nein, die Autos fahren nicht einfach woanders. Sie haben sich in Luft aufgelöst, weil die Autofahrer zu Fahrradfahrern geworden sind.
Liebe alles daran❤️
Reposted
A Nobel-winning scientist of great modesty and humour, John Gurdon died on 7 Oct. Not only did he make a discovery that laid the foundations for stem cell research, he also created one of the best environments for research at the Wellcome/CRUK Gurdon Institute wellcome.org/news/sir-joh...
Sir John Gurdon, 1933-2025 | Wellcome
A Nobel-winning scientist of great modesty and humour, John Gurdon died on 7 October. He made a discovery that opened up the field of cloning research, and created one of the best environments for res...
wellcome.org
October 9, 2025 at 1:39 PM
A Nobel-winning scientist of great modesty and humour, John Gurdon died on 7 Oct. Not only did he make a discovery that laid the foundations for stem cell research, he also created one of the best environments for research at the Wellcome/CRUK Gurdon Institute wellcome.org/news/sir-joh...
Reposted
Happy to share the Biodiversity Cell Atlas white paper, out today in @nature.com. We look at the possibilities, challenges, and potential impacts of molecularly mapping cells across the tree of life.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
September 24, 2025 at 3:12 PM
Happy to share the Biodiversity Cell Atlas white paper, out today in @nature.com. We look at the possibilities, challenges, and potential impacts of molecularly mapping cells across the tree of life.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted
Dr. Jane Goodall filmed an interview with Netflix in March 2025 that she understood would only be released after her death.
October 5, 2025 at 9:08 AM
Dr. Jane Goodall filmed an interview with Netflix in March 2025 that she understood would only be released after her death.
Reposted
Sanjay's amazing story is available on www.biorxiv.org/content/10.1... Congratulations to @sanjay-n.bsky.social, @ulrichtechnau.bsky.social and everyone else 🎉
Notch coordinates self-organization of germ layers and axial polarity in cnidarian gastruloids
Dissociation and reaggregation experiments in several animal systems have revealed the stunning capacity of self-organization. Reaggregated early gastrula cells (here called gastruloids) of the sea an...
www.biorxiv.org
September 18, 2025 at 8:12 AM
Sanjay's amazing story is available on www.biorxiv.org/content/10.1... Congratulations to @sanjay-n.bsky.social, @ulrichtechnau.bsky.social and everyone else 🎉
Just came back from a great meeting in Tutzing on the biology of basal Metazoa. Excellent talks, fantastic posters and very kind and vital community. Thanks also to our keynote speaker, Cassandra Extavour. She was the highlight of the meeting. Thanks everyone for contributing.
September 27, 2025 at 9:20 PM
Just came back from a great meeting in Tutzing on the biology of basal Metazoa. Excellent talks, fantastic posters and very kind and vital community. Thanks also to our keynote speaker, Cassandra Extavour. She was the highlight of the meeting. Thanks everyone for contributing.
Finally, Andi Denner finished his PhD. Congratulations for a a long and successful thesis work.
September 26, 2025 at 9:16 PM
Finally, Andi Denner finished his PhD. Congratulations for a a long and successful thesis work.
Reposted
Happy to be presenting our story on Nematostella self-organization :) tune in if you like to hear what organizes the organizer in cnidarian gastruloids!
www.biorxiv.org/cgi/content/...
www.biorxiv.org/cgi/content/...
September 25, 2025 at 1:41 PM
Happy to be presenting our story on Nematostella self-organization :) tune in if you like to hear what organizes the organizer in cnidarian gastruloids!
www.biorxiv.org/cgi/content/...
www.biorxiv.org/cgi/content/...
We knew that cnidarians have stunning regenerative capacities. But the molecular and cellular mechanisms underlying the self-organization of gastruloids of Nematostella surprised us. A story of cell sorting and Notch signaling. Please check out the work of Sanjay's PhD work: doi.org/10.1101/2025...
September 11, 2025 at 4:16 PM
We knew that cnidarians have stunning regenerative capacities. But the molecular and cellular mechanisms underlying the self-organization of gastruloids of Nematostella surprised us. A story of cell sorting and Notch signaling. Please check out the work of Sanjay's PhD work: doi.org/10.1101/2025...
Reposted
Join our campus! The Vienna BioCenter PhD program offers 20+ fully-funded positions: Open call now!
Read more: www.vbcphd.at
Our working language is English
#viennabiocenter #vbcphd
Read more: www.vbcphd.at
Our working language is English
#viennabiocenter #vbcphd
September 9, 2025 at 8:45 AM
Join our campus! The Vienna BioCenter PhD program offers 20+ fully-funded positions: Open call now!
Read more: www.vbcphd.at
Our working language is English
#viennabiocenter #vbcphd
Read more: www.vbcphd.at
Our working language is English
#viennabiocenter #vbcphd
Reposted
📰 New paper alert!
In a collaborative project with the lab of Clemens Plaschka at the IMP, the lab of Julius Brennecke has revealed how PIWI proteins kickstart transposon silencing in reproductive cells.
The findings are published in Molecular Cell: www.sciencedirect.com/science/arti...
In a collaborative project with the lab of Clemens Plaschka at the IMP, the lab of Julius Brennecke has revealed how PIWI proteins kickstart transposon silencing in reproductive cells.
The findings are published in Molecular Cell: www.sciencedirect.com/science/arti...
How cells lock down “jumping genes”:
Researchers from IMBA and IMP identify the first protein interactions that trigger PIWI–piRNA–mediated transposon silencing, using AlphaFold predictions, genetics, biochemistry and cell biology.
Read more: www.viennabiocenter.org/about/news/t...
Researchers from IMBA and IMP identify the first protein interactions that trigger PIWI–piRNA–mediated transposon silencing, using AlphaFold predictions, genetics, biochemistry and cell biology.
Read more: www.viennabiocenter.org/about/news/t...
September 9, 2025 at 8:57 AM
📰 New paper alert!
In a collaborative project with the lab of Clemens Plaschka at the IMP, the lab of Julius Brennecke has revealed how PIWI proteins kickstart transposon silencing in reproductive cells.
The findings are published in Molecular Cell: www.sciencedirect.com/science/arti...
In a collaborative project with the lab of Clemens Plaschka at the IMP, the lab of Julius Brennecke has revealed how PIWI proteins kickstart transposon silencing in reproductive cells.
The findings are published in Molecular Cell: www.sciencedirect.com/science/arti...
Reposted
Close inter-lab collaborations with shared PhD students and postdocs are the future!
Julia is the hero of this work, she is currently looking for postdoc labs …
Julia is the hero of this work, she is currently looking for postdoc labs …
📰 New paper alert!
In a collaborative project with the lab of Clemens Plaschka at the IMP, the lab of Julius Brennecke has revealed how PIWI proteins kickstart transposon silencing in reproductive cells.
The findings are published in Molecular Cell: www.sciencedirect.com/science/arti...
In a collaborative project with the lab of Clemens Plaschka at the IMP, the lab of Julius Brennecke has revealed how PIWI proteins kickstart transposon silencing in reproductive cells.
The findings are published in Molecular Cell: www.sciencedirect.com/science/arti...
How cells lock down “jumping genes”:
Researchers from IMBA and IMP identify the first protein interactions that trigger PIWI–piRNA–mediated transposon silencing, using AlphaFold predictions, genetics, biochemistry and cell biology.
Read more: www.viennabiocenter.org/about/news/t...
Researchers from IMBA and IMP identify the first protein interactions that trigger PIWI–piRNA–mediated transposon silencing, using AlphaFold predictions, genetics, biochemistry and cell biology.
Read more: www.viennabiocenter.org/about/news/t...
September 9, 2025 at 10:59 AM
Close inter-lab collaborations with shared PhD students and postdocs are the future!
Julia is the hero of this work, she is currently looking for postdoc labs …
Julia is the hero of this work, she is currently looking for postdoc labs …
Finally, the excellent postdoc work of Emmanuel Haillot is out, where he dissected the integration of Wnt, MAPK and Notch signaling in defining mesoderm and endoderm identities in the diploblast Nematostella. Strikingly similar to sea urchins. www.nature.com/articles/s41...
August 29, 2025 at 9:04 PM
Finally, the excellent postdoc work of Emmanuel Haillot is out, where he dissected the integration of Wnt, MAPK and Notch signaling in defining mesoderm and endoderm identities in the diploblast Nematostella. Strikingly similar to sea urchins. www.nature.com/articles/s41...
Reposted
All academic institutions will soon realize we are in this together, facing an autocratic ruler who wants to destroy academia, science, and public health (together with media and courts - pick up a history book).
There is only one solution - stand up, speak up, and, critically, collective action.
There is only one solution - stand up, speak up, and, critically, collective action.
Exclusive: The Trump administration is seeking a $1 billion settlement from UCLA cnn.it/3UPtS3V
August 8, 2025 at 8:42 PM
All academic institutions will soon realize we are in this together, facing an autocratic ruler who wants to destroy academia, science, and public health (together with media and courts - pick up a history book).
There is only one solution - stand up, speak up, and, critically, collective action.
There is only one solution - stand up, speak up, and, critically, collective action.
Reposted
Very happy that the first article from my postdoc work in the Tomancak lab is now published @PNAS! www.pnas.org/doi/10.1073/.... We studied the self-organization of actin in aggregates made from Hydra cells. Thread below (1/9)
August 6, 2025 at 1:09 PM
Very happy that the first article from my postdoc work in the Tomancak lab is now published @PNAS! www.pnas.org/doi/10.1073/.... We studied the self-organization of actin in aggregates made from Hydra cells. Thread below (1/9)
Reposted
Not at all a coincidence that this type of clean-energy comms - which presents a positive case in forceful terms rather than trying to dance around the issue - is coming almost exclusively from non-US firms. The comparison tells us a lot about why the IRA failed. More below:
1/9
1/9
July 30, 2025 at 9:39 PM
Not at all a coincidence that this type of clean-energy comms - which presents a positive case in forceful terms rather than trying to dance around the issue - is coming almost exclusively from non-US firms. The comparison tells us a lot about why the IRA failed. More below:
1/9
1/9
What is the evolutionary origin of neuronal regulation by Ligand gated ion channels? In a collaboration with the lab of Stefan Gründer we show that several inhibitory pLGICs predicted to be GABA-A receptors were actually Glutamate-activated Chloride channels. See www.biorxiv.org/content/10.1...
Functional analysis of ligand-gated chloride channels in a cnidarian sheds light on the evolution of inhibitory signalling
ψ-aminobutyric acid (GABA) is the predominant inhibitory transmitter in the vertebrate nervous system. Fast inhibitory signalling is mediated by type A GABA receptors (GABAARs), which form pentameric ...
www.biorxiv.org
August 1, 2025 at 5:26 PM
What is the evolutionary origin of neuronal regulation by Ligand gated ion channels? In a collaboration with the lab of Stefan Gründer we show that several inhibitory pLGICs predicted to be GABA-A receptors were actually Glutamate-activated Chloride channels. See www.biorxiv.org/content/10.1...
Reposted
Role of klf2 in innovation of the Pmar1-HesC double-negative gate in echinoderms.
Read this Research Article by Nina Levin, Natalia Gogoleva and the team:
journals.biologists.com/dev/article/...
Read this Research Article by Nina Levin, Natalia Gogoleva and the team:
journals.biologists.com/dev/article/...
July 23, 2025 at 3:27 PM
Role of klf2 in innovation of the Pmar1-HesC double-negative gate in echinoderms.
Read this Research Article by Nina Levin, Natalia Gogoleva and the team:
journals.biologists.com/dev/article/...
Read this Research Article by Nina Levin, Natalia Gogoleva and the team:
journals.biologists.com/dev/article/...
Great opportunity! The Uni Vienna has launched a call (APART) for 4-funding for outstanding postdocs from a US institution. The host lab has to nominate by 1 August a candidate for further selection. Anyone interested in our work please contact me by email with CV/motivation letter. Hurry up!
July 26, 2025 at 2:30 PM
Great opportunity! The Uni Vienna has launched a call (APART) for 4-funding for outstanding postdocs from a US institution. The host lab has to nominate by 1 August a candidate for further selection. Anyone interested in our work please contact me by email with CV/motivation letter. Hurry up!
Reposted
It's finally here! Great start of the summer. We got our latest preprint from @chemamd.bsky.social in @qmulsbbs.bsky.social @qmulse.bsky.social, showing evidence of developmental system drift in the specification of dorsoventral (belly vs back) axis in annelids 🪱🪱🪱
#DevBio #EvoDevo
#DevBio #EvoDevo
June 2, 2025 at 9:14 AM
It's finally here! Great start of the summer. We got our latest preprint from @chemamd.bsky.social in @qmulsbbs.bsky.social @qmulse.bsky.social, showing evidence of developmental system drift in the specification of dorsoventral (belly vs back) axis in annelids 🪱🪱🪱
#DevBio #EvoDevo
#DevBio #EvoDevo
Reposted
@rokofler.bsky.social uncovered a treasure cove in Drosophila populations here. Remarkable and highly relevant findings on horizontal transfer of all kinds of TEs, irrespective of their transposition type.
@rokofler.bsky.social talks about the spread of TEs in drosophila over time - are humans responsible?? #smbe2025
July 22, 2025 at 8:28 AM
@rokofler.bsky.social uncovered a treasure cove in Drosophila populations here. Remarkable and highly relevant findings on horizontal transfer of all kinds of TEs, irrespective of their transposition type.
Reposted
We've just been awarded a grant to study the cellular basis of regeneration – to track the progenitors of sensory organs in the context of leg regeneration, in our favourite crustacean tinyurl.com/parhyale, based on live imaging and cell tracking. The project involves some cool collaborations... 1/3
July 13, 2025 at 2:55 PM
We've just been awarded a grant to study the cellular basis of regeneration – to track the progenitors of sensory organs in the context of leg regeneration, in our favourite crustacean tinyurl.com/parhyale, based on live imaging and cell tracking. The project involves some cool collaborations... 1/3