Bayer lab

Fig. 1 (shortened, full legend in paper): Workflow of single-particle tracking photoactivated localization microscopy (sptPALM) analysis. (A) Localization: single molecule spots are cut out of the raw data image stack, fitted with two-dimensional Gaussian functions and the results (most importantly, their coordinates) stored as lists. (B) Tracking: single-molecule positions are grouped to tracks, based on their relative positions in subsequent frames. (C) Mean square displacement (MSD) analysis: the average squared distance the molecules have traveled in certain time intervals (top left) can be plotted in MSD curves (bottom), showing a straight line for free Brownian motion (dark gray), for which the slope is directly proportional to the diffusion coefficient. Other motion types like superdiffusive (red) or subdiffusive (yellow) show different curve shapes (inset: corresponding single-molecule example tracks).

🔬 EXPERT VIEW 🔬

Oven-Krockhaus et al. introduce single-particle tracking photoactivated localization microscopy for studying plasma membrane proteins in plants, outlining key applications and practical guidance on instrumentation, probes, and analysis.

🔗 doi.org/10.1093/jxb/...
#PlantScience 🧪

An AINTEGUMENTA phosphoswitch controls bilateral stem cell activity during secondary growth | PNAS Plant stem cells have the remarkable ability to give rise to distinct tissues and organs throughout development. Two concentric cylinders of active...

It’s finally out! 🎉
Work led by former PhD student @wei-xiao-botany.bsky.social , in collaboration with @bayerlab.bsky.social and @bertderybel.bsky.social
AINTEGUMENTA phospho-switch regulates bilateral stem cell activity during secondary growth.

🔗 www.pnas.org/doi/10.1073/...

#PlantSciences

This is exciting. Congratulations. I hope you will look at embryos as well 😀

PLANT BIOLOGY EUROPE meeting, Budapest, just started and people are already dancing! Great start!
#PBE2025

Well deserved #scicomm award at the MBP2025 meeting for @somssich.bsky.social ! Big congrats!

If you are interested in plant stem cell systems, meristems and development of cereals:
We are organising an international symposium on "Cereal Meristems and Stem Cell Systems", see attached announcement. www.cscs2025.de for more details

Walking home from work one day, you encounter a funny little man selling cabbages.

"Pathways" he says
"Secret portals to the biology realms"

"How odd" you think. But the cabbages do look delicious, so you buy a few.

Later that night you cut the first one open.

New Phytologist Stomata Seminar Video available (by Sally Assmann and myself). Thanks again for this fantastic opportunity to share our work and perspectives 🌱🥰!
cassyni.com/events/CpfRD...

Perspectives on a co-option of a familiar signaling pathway for embryo patterning, where phosphorylation of SCREAM by MPK3/6 triggers different outcomes. But..Symmetric Cell Division is EXCITING and essential for generating a mirror-symmetric Guard Cell pair😘🌱.
www.nature.com/articles/s41...

BPMs regulate Arabidopsis seedling development by promoting auxin-independent degradation of the Aux/IAA protein IAA10 https://www.biorxiv.org/content/10.1101/2024.11.26.625463v1 After germination, seedlings undergo etiolated development (skotomorphogenesis), enabling them to gr

BPMs regulate Arabidopsis seedling development by promoting auxin-independent degradation of the Aux/IAA protein IAA10 https://www.biorxiv.org/content/10.1101/2024.11.26.625463v1

By definition, enhancers can activate from a distance. But with increased distance between enhancer and promoter, the activation drops. To study this systematically, we build a synthetic locus: www.cell.com/molecular-ce... 1/12

We just completed our cluster interview at @dfgpublic.bsky.social. Exceptional team spirit and a fantastic joint achievement by everybody involved! The GreenRobust initiative in full swing.

More details on our recent pre-print:
Alignments of stomata have been described in many species, here are 2 examples: Thym from my kitchen, and Leucadendron from a 1935 paper (Smith 1935 on the orientation of stomata)
What is directing these alignments is unknown 1/12
doi.org/10.1101/2024...

Parallel measurement of transcriptomes and proteomes from same single cells using nanodroplet splitting - Nature Communications Single-cell multiomics can provide broad insights into gene/protein regulatory networks and cellular diversity. Here, authors develop nanoSPLITS, a nanodroplet splitting approach for global profiling ...

www.nature.com/articles/s41...

Cool stuff!

Repost if BlueSky is now your primary social media site.

On the way to @debbiemleigh.bsky.social 's excellent seminar talk this afternoon. If you like geometry this part of @unituebingen.bsky.social campus is good for you...

Phosphorylation‐dependent activation of the bHLH transcription factor ICE1/SCRM promotes polarization of the Arabidopsis zygote In Arabidopsis thaliana, the asymmetric cell division (ACD) of the zygote gives rise to the embryo proper and an extraembryonic suspensor, respectively. This process is controlled by the ERECTA-YODA...

Super excited to announce that our SCRM story is officially published!!! 🎉🎉🎉

Want to discover the exciting new functions of ICE1/SCRM?

Want to dive into the latest model of plant embryo initiation?

Don’t miss out—check it out here:
nph.onlinelibrary.wiley.com/doi/10.1111/...

I just branched out to BlueSky! 🌱 Looking forward to planting ideas and growing a new network here.