Ziv Aardening
zivaardening.bsky.social
Ziv Aardening
@zivaardening.bsky.social
PhD student in the Savaldi-Goldstein lab, studying root development.
Pinned
Now online!

The whole and its parts: cell-specific functions of brassinosteroids

We review how recent discoveries in the field of brassinosteroid signaling provide new insights into its role in shaping organ growth across cell layers #plantscience
www.cell.com/trends/plant...
The whole and its parts: cell-specific functions of brassinosteroids
Brassinosteroid (BR) phytohormones operate at both the cellular and organ levels, and impart distinct transcriptional responses in different cell types and developmental zones, with distinct effects o...
www.cell.com
Reposted by Ziv Aardening
Thrilled to have our paper out in @science.org. Cell division guides plant cell wall formation. Does the reverse hold? We show that bimodal pectin methylesterification, via PME5 mRNA nuclear sequestration, influences plant cell division and cell plate orientation. www.science.org/doi/10.1126/...
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...
www.science.org
December 6, 2025 at 10:11 AM
Reposted by Ziv Aardening
Nanoclustering of a plant transcription factor enables strong yet specific DNA binding https://www.biorxiv.org/content/10.1101/2025.11.05.686732v1
November 6, 2025 at 11:03 PM
Reposted by Ziv Aardening
Another great collaboration with @trevormnolan.bsky.social and @nvukas.bsky.social where we give our vision on how brassinosteroid research can pave the way to precision plant engineering www.science.org/doi/10.1126/...
Unlocking the potential of brassinosteroids: A path to precision plant engineering
Brassinosteroids are essential plant hormones that play a central role in regulating growth, development, and stress responses. Their impact on plant architecture and productivity makes them attractiv...
www.science.org
November 7, 2025 at 8:54 AM
Reposted by Ziv Aardening
Did you know that there is a cell cycle duration gradient in plant root meristem? New story by joining forces between Plant dynamics lab and Crisanto Gutiérrez & Bénédicte Desvoyes lab @cbgpmadrid.bsky.social @cbm-csic-uam.bsky.social #Plants #roots #cellcycle www.nature.com/articles/s41...
Stem cell regulators drive a G1 duration gradient during plant root development - Nature Plants
A positional and developmentally regulated cell cycle duration gradient exists in the root meristem whereby the G1 phase is very long close to the stem cell niche. This relies on the interplay of PLET...
www.nature.com
September 18, 2025 at 10:10 AM
Reposted by Ziv Aardening
Recently, both our team and the Richardson/Estelle/Strader teams showed that ARF transcription factors are actively degraded. In this new preprint, Martijn de Roij explores the requirements and relevance of ARF degradation (1/7)
Diversification of functional requirements for proteolysis of Auxin Response Factors https://www.biorxiv.org/content/10.1101/2025.09.03.673984v1
September 5, 2025 at 6:00 AM
Reposted by Ziv Aardening
We are happy to present the magnum opus of Sjoerd Woudenberg, at the close of his PhD – Transgenerational inheritance of the polarity axis in a fern embryo…a thread (1/17)

tinyurl.com/4y53xekv
Transgenerational polarity axis inheritance during Ceratopteris embryogenesis
For sexually reproducing organisms to pass on their genetic information, progeny must successfully establish. Various life history strategies have evolved, using either dispersal of large numbers of p...
tinyurl.com
September 1, 2025 at 2:28 PM
Reposted by Ziv Aardening
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...
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...
www.biorxiv.org
August 27, 2025 at 6:07 PM
Reposted by Ziv Aardening
A great example of how comparative genomics across the full range of vascular plant lineages can be used as a catalyst for gene discovery!
Exciting new single cell datasets for gymnosperms, ferns and lycophytes!
The scale of this study is really amazing!
www.cell.com/cell/fulltex...
A unified cell atlas of vascular plants reveals cell-type foundational genes and accelerates gene discovery
A cross-species single-cell atlas highlights a core subset of cell-type foundational genes associated with major vascular plant cell types, enabling the identification of hidden cell types and the dev...
www.cell.com
August 20, 2025 at 4:13 PM
Reposted by Ziv Aardening
Hey all!
We have been awarded a Spanish national grant to keep researching. Best of all is we have a full PhD contract assigned. We are looking for candidates interested in molecular biology and evolution of (plant) transcription factors, please spread the word!!
Check our web for more information.
August 7, 2025 at 1:34 PM
Reposted by Ziv Aardening
Very proud to share our latest preprint: postdoc/LRSF fellow Yue Rui studies the mechanisms regulating attachment of the cell wall to the plasma membrane. The Cellulose Synthase Complex and REMORINs determine the extent of attachment and root osmotic stress tolerance. www.biorxiv.org/content/10.1...
August 3, 2025 at 3:53 AM
Reposted by Ziv Aardening
Mitotic entry is controlled by the plant-specific phosphatase BSL1 and cyclin-dependent kinase B https://www.biorxiv.org/content/10.1101/2025.07.24.666638v1
July 26, 2025 at 6:02 PM
Reposted by Ziv Aardening
How plants sense injury in their barrier tissue, periderm? Painstakingly detailed and amazing work by post doc Hiroyuki Iida shows that wounding is sensed by the diffusion of two gases: ethylene and oxygen. @treebiocoe.bsky.social@erc.europa.eu‬ 1/x 🧵 www.nature.com/articles/s41...
Plants monitor the integrity of their barrier by sensing gas diffusion - Nature
A study using Arabidopsis shows that plants can monitor the integrity of their outer barriers by sensing gas diffusion, enabling them to initiate wound repair to prevent water loss and pathogen entry.
www.nature.com
July 2, 2025 at 4:20 PM
Reposted by Ziv Aardening
🍀🔬

Brassinosteroids promote pollen tube guidance by coordinating gene expression in male and female reproductive tissues @cp-cellreports.bsky.social

www.sciencedirect.com/science/arti...
June 22, 2025 at 4:29 PM
Reposted by Ziv Aardening
Check out our latest work, featuring beautiful, first-of-their-kind cryo-tomograms of crucial plant cell wall modifications, Casparian strips, suberin lamellae, lignified xylem walls and more! From our Electron Microscopy Facility led by @chgenoud.bsky.social

www.biorxiv.org/content/10.1...
Imaging of specialized plant cell walls by improved cryo-CLEM and cryo-electron tomography
Cryo-focused ion beam scanning electron microscopy (cryo-FIBSEM) has become essential for preparing electron-transparent lamellae from cryo-plunged and high-pressure frozen specimens. However, targeti...
www.biorxiv.org
June 5, 2025 at 12:00 AM
Reposted by Ziv Aardening
We have a unique opportunity for a junior researcher, PhD student or postdoc, to use a revolutionary technique for mineral nutrient imaging and tracing in plants. Please re-post! Interested candidates should apply through the portal at the link below:

career5.successfactors.eu/career?compa...
Career Opportunities: Postdoc or PhD student position in Plant Physiology (22260)
career5.successfactors.eu
May 29, 2025 at 11:47 PM
Reposted by Ziv Aardening
🚨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...
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…
www.sciencedirect.com
May 8, 2025 at 5:09 PM
Thanks @natplants.nature.com for highlighting the work of our lab’s talented postdoc Hitaishi Khandal, revealing how shoot and root BR signaling shape root system architecture.
Recent OA article in @natcomms.nature.com : "Root growth and branching are enabled by brassinosteroid-regulated growth anisotropy and carbon allocation" rdcu.be/ekTAM
May 6, 2025 at 5:49 PM
Reposted by Ziv Aardening
Thrilled to see our work now online @nature.com
This study reveals how individual root cells sense and respond to real, compacted soil environments.
www.nature.com/articles/s41...

beautiful spatial transcritomics of rice root in gel & soil conditions and huge credit to Mingyuan and colleagues.
May 1, 2025 at 9:43 AM
Root growth and branching are enabled by brassinosteroid-regulated growth anisotropy and carbon allocation

www.nature.com/articles/s41...
Root growth and branching are enabled by brassinosteroid-regulated growth anisotropy and carbon allocation - Nature Communications
A grafting-based approach combined with modeling uncovers how root system architecture is shaped by the distinct yet essential contributions of the shoot and root through brassinosteroid signaling.
www.nature.com
April 29, 2025 at 4:49 AM
Reposted by Ziv Aardening
Scooped by @flowerwhatelse.bsky.social 😅 but if you want to know how auxin can generate a myriad of transcriptional patterns you should check authors.elsevier.com/a/1kxK8L7PXu...
authors.elsevier.com
April 15, 2025 at 3:36 PM
Reposted by Ziv Aardening
I will be recruiting one PhD student and one postdoc in 2025. If interested please contact me already. @psb-vib.bsky.social 🌱🌱🌱We are interested in steroid hormones. See our published work
PMID: 40068682 
PMID: 38513023
PMID: 37639582
PMID: 37365405
March 24, 2025 at 11:23 AM
Reposted by Ziv Aardening
Plasmodesmata: A new frontier for membrane contact site intercellular communication plantae.org?p=140096
Plasmodesmata: A new frontier for membrane contact site intercellular communication | Plantae
Membrane contact sites (MCSs) serve a critical role in intracellular communication, particularly between organelle membranes, enabling direct molecular transfer. Less clear is the role MCSs play in…
plantae.org
March 19, 2025 at 9:22 AM
Reposted by Ziv Aardening
🌱 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
March 10, 2025 at 2:58 PM
Reposted by Ziv Aardening
Reposted by Ziv Aardening
Great collaboration with @yvonjaillais.bsky.social 🌱 Plants use membrane contact sites (MCS) for cell-to-cell signaling!
➡️ MCTP tethers & PI4P regulate ER-PM contacts in plasmodesmata, impacting trafficking.
➡️ MCS roles span intra- and intercellular communication.

www.cell.com/cell/abstrac...
Plasmodesmata act as unconventional membrane contact sites regulating intercellular molecular exchange in plants
Plant intercellular communication is regulated via tubular ER-PM membrane contact through PI4P and MCTP protein tethers.
www.cell.com
February 20, 2025 at 3:56 PM