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Nathan German

@nathan-german

PhD student @rdplab.bsky.social • Plant cell wall • Cell anisotropic growth • Microscopy

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12.11.2024
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Latest posts by Nathan German @nathan-german

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Quantification of cell‐type‐specific plasmodesmata distribution in Arabidopsis roots reveals spatial and patterning dynamics Plasmodesmata are cytoplasmic channels essential for intercellular communication in plants; yet their organ-scale distribution and regulation remain poorly understood. Here, we establish a quantitati...

⚙️Technical Advance

How are plasmodesmata distributed across tissues? 🌱

Davis et al. developed a 3D quantitative imaging pipeline to map pit fields at cell-type resolution in Arabidopsis roots.
They’re developmentally reallocated and spatially patterned by BR signaling.
👉 doi.org/10.1111/tpj.70726

21.02.2026 18:55 👍 17 🔁 11 💬 0 📌 1
ONLINE COVER
Maximum-intensity projection of a confocal image of epidermal cells from the Thale cress roots, where four colors stain different cell parts. 

Goldy et al. demonstrate that the protein actin allows cells to override standard division rules by stabilizing the orientation of spindles, which segregate chromosomes during mitosis. This uncovers a previously under-appreciated role for actin cytoskeletons, providing new insight into how division orientation is controlled to ensure robust tissue architecture during plant growth.

Credit: Camila Goldy

ONLINE COVER Maximum-intensity projection of a confocal image of epidermal cells from the Thale cress roots, where four colors stain different cell parts. Goldy et al. demonstrate that the protein actin allows cells to override standard division rules by stabilizing the orientation of spindles, which segregate chromosomes during mitosis. This uncovers a previously under-appreciated role for actin cytoskeletons, providing new insight into how division orientation is controlled to ensure robust tissue architecture during plant growth. Credit: Camila Goldy

What could be more satisfying than this ?

✨️Congrats to all the authors ✨️

Could not be more proud of you 🥹

Credit: Camila Goldy @camilagoldy.bsky.social

18.02.2026 20:12 👍 48 🔁 12 💬 3 📌 1
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(1/5)

I am very excited to share my simultaneous triple staining method for monocot roots. This method is not only faster but also utilizes a smaller volume of stain than traditional methods and minimizes mechanical tissue damage.

www.biorxiv.org/content/10.6...

18.02.2026 00:30 👍 69 🔁 22 💬 2 📌 2

Congrats !!!

16.01.2026 16:36 👍 1 🔁 0 💬 1 📌 0

APETALA2 controls seed growth by regulating outer integument mechanical identity during seed coat differentiation https://www.biorxiv.org/content/10.64898/2025.12.16.694797v1

18.12.2025 04:04 👍 8 🔁 3 💬 0 📌 0
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I’m very happy to share that next year I’m launching the Meristem Hydraulics Group. We will be at the @umeaplantsciencecentre.se (Sweden) & the University of Helsinki (Finland) @helsinki.fi

Here is a brief description of our research interests:
www.upsc.se/juan_alonso_...

#PlantSciences

16.12.2025 19:29 👍 58 🔁 12 💬 9 📌 2
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Cell wall patterning regulates plant stem cell dynamics The plant cell wall regulates development through spatiotemporal modulation of its chemical and mechanical properties. Pectin methylesterification is recognized as a rheological switch controlling wal...

Oh Wow!

Cell wall patterning regulates plant stem cell dynamics | Science www.science.org/doi/10.1126/...

05.12.2025 08:37 👍 18 🔁 11 💬 2 📌 0
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Arabidopsis thaliana lateral root transversal cross-section.

27.11.2025 15:59 👍 7 🔁 1 💬 0 📌 0

🎉🎉🎉

13.09.2025 21:43 👍 1 🔁 0 💬 0 📌 0
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🌱 3 plant biology institutes, 2 great days! 🌿

PhDs & postdocs from DBMV @unil.bsky.social, @psb-vib.bsky.social & @rdplab.bsky.social rocked the 2nd Trilateral Plant Bio Symposium in Lausanne!

👏 Big congrats to all ECRs, especially to @nathan-german.bsky.social for winning Best Presentation! 🏆💥

13.09.2025 11:10 👍 19 🔁 10 💬 0 📌 0
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Plant cells at the organ surface use mechanical cues to activate a specific growth control programme During morphogenesis of multicellular organs, cells acquire distinct identities that meet specific functional requirements. Epidermal identity is widely considered essential for plant morphogenesis du...

Thrilled to share our latest work: how plants control growth through activation of a surface-specific growth programme. Thanks @zoenv.bsky.social, @nathan-german.bsky.social and the other coauthors for all the hard work! www.biorxiv.org/content/10.1...

27.08.2025 18:07 👍 78 🔁 28 💬 3 📌 1
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"Little Flower"

A Cryo-SEM portrait of my micro-rose depicting the flower as a sculpture of cells, fractured and frozen in time. Full image is 10k x 10k pixels.

19.08.2025 14:04 👍 44 🔁 12 💬 0 📌 1

Translational research is digging for gold. Basic research is learning where and what to dig. The more funding is diverted to translation, the more we deplete the research ecosystem, driving the supplies of "gold" - immediately translatable findings and innovations - to unsustainably low levels.

19.07.2025 08:46 👍 70 🔁 27 💬 3 📌 1

It is sad that even basic research needs to be defended with utility. For me, basic research is in the same category as art: civilized societies can't do without it, because we all want to know who we are and what our place in the natural world is -- questions that only science can answer.

09.05.2025 21:09 👍 161 🔁 61 💬 7 📌 3
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Conserved mechanical hallmark guides four-way junction avoidance during plant cytokinesis When building an organ, adjacent cells coordinate to form topologically stable junctions by integrating mechanosensitive signaling pathways. Positioni…

🚨Our paper is out!

If you ever wonder how four-way junctions are avoided during plant cell division, some answers here 🧬🍀🔬🧪🤓

👇
www.sciencedirect.com/science/arti...

08.05.2025 17:09 👍 68 🔁 34 💬 9 📌 2

Hello Bluesky! 🌟

This account was created a while ago but never really used—until now!🌱

We’re finally here and ready to share, connect, and explore.

Stay tuned for updates and fresh content. 🚀

06.05.2025 22:51 👍 24 🔁 9 💬 0 📌 0
FEM and TEM reveal the process by which cell separation may initiate in the outer epidermal edge filling (OEEF) and propagate to the supracellular outer epidermal wall FEM and TEM reveal the process by which cell separation may initiate in the outer epidermal edge filling (OEEF) and propagate to the supracellular outer epidermal wall (SOEW).
CC-BY-NC-ND 4.0 International license.
(which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is
bioRxiv preprint doi: https://doi.org/10.1101/2025.04.03.646819; this version posted April 6, 2025.

FEM and TEM reveal the process by which cell separation may initiate in the outer epidermal edge filling (OEEF) and propagate to the supracellular outer epidermal wall FEM and TEM reveal the process by which cell separation may initiate in the outer epidermal edge filling (OEEF) and propagate to the supracellular outer epidermal wall (SOEW). CC-BY-NC-ND 4.0 International license. (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is bioRxiv preprint doi: https://doi.org/10.1101/2025.04.03.646819; this version posted April 6, 2025.

New preprint from @stephanevrg.bsky.social 's lab!

🧪 Simulations + mutant tests show a shift in how we think about plant cell adhesion, challenging "textbook" view on the role of middle lamella.

📄 doi.org/10.1101/2025...

Thank you Özer Erguvan and all co-authors 🔬

#PlantSci #CellBiology

07.04.2025 08:36 👍 18 🔁 10 💬 0 📌 0
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🌱 When a root cell undergoes symmetric division, are the daughter cells actually identical? By combining live-cell imaging and scRNAseq we discovered a new cell state with uneven BR activity. Read our full paper in Cell: doi.org/10.1016/j.ce... @nvukas.bsky.social @trevormnolan.bsky.social

10.03.2025 14:58 👍 106 🔁 59 💬 6 📌 7
Charlotte Kirchhelle

Charlotte Kirchhelle

Charlotte @ckirchhelle.bsky.social will focus on manuscripts on plant cell biology, endo-membrane transport, quantitative imaging and plant morphogenesis. Read more about Charlotte’s research and her advice to young scientists: journals.biologists.com/jcs/article/...

27.01.2025 13:01 👍 18 🔁 6 💬 1 📌 1
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Dynamic cortical behavior of plant protoplasts reveals unexpected similarities between plant and animal cells https://www.biorxiv.org/content/10.1101/2024.11.13.623369v1 In contrast to animal cells with their contractile cortical cytoskeleton, plant cells are encased in

Dynamic cortical behavior of plant protoplasts reveals unexpected similarities between plant and animal cells https://www.biorxiv.org/content/10.1101/2024.11.13.623369v1

15.11.2024 16:03 👍 2 🔁 1 💬 0 📌 0