Excited to see the major chapter of my PhD in print!

We present a massively-parallel approach for screening CRISPR edits in plants to speed up agricultural test cycles + benchmark genomic LMs.

Thanks to my fantastic co-authors and advisors. Link below!

We have been cooking up this story for a while and we are excited to finally be able to share!

Read on if you're interested in whole plant regeneration WITHOUT the application of hormones!

Course Alumni Cold Spring Harbor Laboratory Meetings & Courses -- a private, non-profit institution with research programs in cancer, neuroscience, plant biology, genomics, bioinformatics.

please share!
🌱Application deadline is March 27 to apply for the Cold Spring Harbor Frontiers and Techniques in Plant Science 3 week summer course!
🌱 It's a great time- you learn a lot and really bond with others in the course.
🌱 I was in the class of 2000! 😀
meetings.cshl.edu/alumni.aspx?...

Highly recommended EMBO Workshop on Plant Photobiology (ISPP2026) in Les Diablerets, Switzerland! (even if I may be slightly biased...) Registration open. We are very much looking forward to seeing you there! ⬇️

New preprint out! Zhoubo Hu et al "A redox-regulated RCC1-like protein controls catalase activity in Arabidopsis". We identify CAIR1, a UVR8-interacting protein, as a redox-responsive regulator of catalase localization and activity, maintaining cellular ROS balance. 🌱
www.biorxiv.org/content/10.6...

A redox-regulated RCC1-like protein controls catalase activity in Arabidopsis www.biorxiv.org/content/10.64898/2026.01...

Chromatin state architecture governs transcription factor accessibility across plant genomes Author summary In eukaryotes, DNA is tightly associated with histone proteins. Histone covalent modifications and histones isoforms, also called histone variants provide most of the complexity of chro...

This is a very special paper for me. I had the idea of combining transcription factor binding with chromatin in 2016/8. It took some time, but thanks to Fred and Vikas, we can finally share the story in @plos.org Genetics looking at chromatin states in Arabidopsis and Marchantia. #PlantScience

Plant Kelch phosphatases are Ser/Thr phosphatases involved in cell cycle regulation Brassinosteroids (BRs) are plant steroid hormones sensed at the cell surface by the membrane receptor kinase BRI1. Activation of BRI1 leads to the dephosphorylation of BZR1/BES1 transcription factors ...

Our new year starts of course with new preprint on brassinosteroid signaling tinyurl.com/nhzcfkxd. We re-analyzed the function of Kelch phosphatases, which were previously characterized as protein tyrosine phosphatases that dephosphorylate the critical pTyr200 in the GSK3 kinase BIN2. (1/6)

We are very much looking forward to welcoming you in Les Diablerets 🇨🇭 for the International Symposium on Plant Photobiology (ISPP2026), Sept. 8-11, 2026! @martinalegris.bsky.social @emiliedemarsy.bsky.social @chfankhauser.bsky.social @plantphotobiology.bsky.social ➡️ See the links below.

Conservation and divergence of UVR8-COP1/SPA-HY5 signaling in UV-B responses of Marchantia polymorpha Ultraviolet-B radiation (UV-B) poses a major challenge to all forms of plant life. The liverwort Marchantia polymorpha (Marchantia) serves as a key model organism to study signaling pathways and to in...

New preprint! 😁 We uncover how early land plants evolved UV-B tolerance by dissecting the UVR8 pathway in Marchantia polymorpha. Conserved yet rewired—evolutionary plasticity revealed. 👉 www.biorxiv.org/content/10.1... #PlantScience #UVB #Evolution

Conservation and divergence of UVR8-COP1/SPA-HY5 signaling in UV-B responses of Marchantia polymorpha www.biorxiv.org/content/10.1101/2025.07....

Conservation and divergence of UVR8-COP1/SPA-HY5 signaling in UV-B responses of Marchantia polymorpha Ultraviolet-B radiation (UV-B) poses a major challenge to all forms of plant life. The liverwort Marchantia polymorpha (Marchantia) serves as a key model organism to study signaling pathways and to in...

Happy to share this work we did together with @yuankeliang.bsky.social in @romanulm.bsky.social lab. We looked in detail at UVR8-mediated UV-B signaling in Marchantia and found some conserved functions but also a few surprises! #plantscience #marchantia #UVR8

A transcriptional atlas of early Arabidopsis seed development suggests mechanisms for inter-tissue coordination Successful seed development is essential for flowering plant reproduction and requires the coordination of three genetically distinct tissues: the embryo and endosperm, which are the products of ferti...

New from the Gehring lab

POSTDOC POSITION AVAILABLE, Geneva, Switzerland - Applications are invited for a postdoc position to study UV-B perception and signalling in plants. Please apply, forward to suitable candidates, and/or repost; many thanks!
Deadline February 24, 2025.
See www.ulm-lab.ch for more information.

A simple method to efficiently generate structural variation in plants Phenotypic variation is essential for the selection of new traits of interest. Structural variants, consisting of deletions, duplications, inversions, and translocations, have greater potential for ph...

Do you want an EMS-like drug that you can easily use in your lab or your garden shed to generate structural variation in your favorite plant? We show here that the topo2 inhibitor & common chemotherapy drug etoposide works really well to generate structural variation .