Advertisement · 728 × 90

Posts by Ari Pekka Mähönen

Post image

Registration for the International PhD School Plant Development 2026 is up and running, half the places have been already booked!
So don't wait until the deadline to register raissiglab.org/plantdevosch... !
Cost: €350.- for conference, accommodation, meals, and a wine tasting in a local winery 🍷

13 hours ago 14 13 0 0
Post image

2 PhD positions available in my lab at the University of Parma, Italy, starting from 1st Nov 2026.

Call will be published in June; deadline for application in July; interviews in September.

Get in touch for more information :)

2 weeks ago 0 1 0 0
Preview
Plant hormone and peptide signaling converge in the genetic network regulating cambium activation in Arabidopsis roots An intertwined network of cytokinin, auxin and peptide hormone signaling activates secondary growth in the Arabidopsis roots.

Plant #hormone & #peptide signaling converge in the #genetic network regulating #cambium activation in #Arabidopsis #roots

academic.oup.com/plcell/advan...

#PlantScience @theplantcell.bsky.social @apmahonen.bsky.social @srobertgroup.bsky.social @plantteaching.bsky.social @plantophagy.bsky.social

4 weeks ago 9 4 0 0
Ad banner: germinating plant, Utrecht University, VACANCY: Postdoc position in Experimental & Computational Plant Biology

Ad banner: germinating plant, Utrecht University, VACANCY: Postdoc position in Experimental & Computational Plant Biology

I am excited to announce that we have two open positions on our recently funded MYBstery M-WEAVE (NWO-DFG) project!

1) Postdoc in my team at Utrecht University (NL). www.uu.nl/en/organisat...

2) PhD in the team of @lauraragni.bsky.social at University of Freiburg (DE). (See thread)

3 weeks ago 46 54 1 1
Post image

The 7th International Symposium on Plant Apoplastic Diffusion Barriers (PADiBa2026) will be held in Lausanne, Switzerland from August 31th to September 3rd 2026. We now have a website: wp.unil.ch/padiba2026/ Registrations will open on April 1st.

1 month ago 32 27 4 2

thank you!

1 month ago 1 0 0 0

thanks, Kalika!

1 month ago 2 0 0 0

It is likely Col-0 and kanR...

1 month ago 3 0 1 0

Don't worry, Steffen, this is a transient paper burst - I'll soon return to my familiar, sluggish publishing style.

1 month ago 1 0 1 0

Many thanks to the colleagues who contributed along the way, and biggest thanks to Tiina for her incredible persistence throughout the process! 7/7

1 month ago 2 0 0 0
Advertisement
Redirecting

This work builds on our previous study showing that cytokinin accumulation and four downstream LBDs activate the root cambium: doi.org/10.1016/j.cu... 6/x

1 month ago 2 0 1 0

This project was a long journey (we have microarray data in this m/s 😄). We initially tried to genetically dissect auxin and cytokinin signalling, but it gradually became clear that these pathways are interconnected at many levels, making clean genetic separation… challenging, to put it mildly. 5/x

1 month ago 1 0 1 0

After the first stem cell division, however, their domains separate: auxin signalling becomes restricted to the inner organizer cell/xylem domain, while cytokinin signalling remains in the outer daughter/stem cell domain. 4/x

1 month ago 1 0 1 0

Interestingly, auxin and cytokinin signalling transiently overlap during the activation of procambial cells and act additively to promote secondary development. 3/x

1 month ago 1 0 1 0

We found that cytokinin upregulates both auxin and TDIF-PXY signalling, while proper auxin signalling is required for a sufficient cytokinin response. Together, this creates a complex and tightly interconnected signalling network that activates the cambium. 2/x

1 month ago 1 0 1 0
Preview
Plant hormone and peptide signaling converge in the genetic network regulating cambium activation in Arabidopsis roots An intertwined network of cytokinin, auxin and peptide hormone signaling activates secondary growth in the Arabidopsis roots.

After a long journey, our new paper is out! 🌱
In this study, Tiina and colleagues show that cambium activation in the Arabidopsis root is triggered by the induction of auxin, cytokinin, and TDIF peptide signalling. 🧵1/x doi.org/10.1093/plce...

1 month ago 37 15 3 1
Post image Post image

Our Review "Development, Anatomy and Integrated Function of Grass Leaf Veins and Graminoid Stomata" is out doi.org/10.1146/annu...

Alec Baird and I discuss the development and function of the anatomical structures that regulate water supply (leaf veins) and water demand (stomata) in the grass leaf.

1 month ago 47 26 0 0

Latest from our lab! Detailed and committed work by Jennifer combined with Hiro's special skills👌. Wonderful collaboration with @nikogeldner.bsky.social lab (Damien and Etienne) and @jalonsos.bsky.social 👇

1 month ago 18 7 0 0
Post image

ERC-funded PhD position: auxin in plant morphogenesis!

Come to our team to study molecular mechanisms downstream of auxin signaling that control morphogenesis in plants! ueb.cas.cz/en/news/?id=...

1 month ago 28 26 0 2
Advertisement
Post image

Registration for the 13th PhD School on Plant Development is open! 🌾 🔬 🌺 🧬 🌵 🧪

Deadline: June 30, 2026
Link to registration form forms.gle/tbmUxaw2vmEn...
Cost: €350.- (incl. board, lodging and social event)
For details re payment and abstracts see form or homepage raissiglab.org/plantdevosch...

1 month ago 40 40 2 0

Thank you very much for your visit! It was great to chat with you.

1 month ago 2 0 0 0
Post image

🚨 PhD Position in Plant Molecular Biology 🌱
We are looking for a motivated PhD student to join our team to study root protective barriers. If you are interested in confocal microscopy, cell wall biology, and plant development, this project might be for you! Please share!
#PlantScience #PlantSciJob

1 month ago 64 81 0 0
Post image

Exciting and thought-provoking talk by Yasin Dagdas in our HiLIFE Monday seminars #viikkimon

1 month ago 15 2 0 1
Post image

Very happy about this nice piece of work by @eugeniapitsili.bsky.social on developmentally controlled cell death in plants @dev-journal.bsky.social‬ !
Special thanks also to @ingridtsang.bsky.social for a terrific editorial job bringing out the best of this manuscript!!
doi.org/10.1242/dev....

1 month ago 32 15 2 0

Tämä yksilö on varmaankin teinipoika. Iän myötä tasoittuu tämä mahtaileva käyttäytyminen.

1 month ago 4 0 0 0

Wise words from Miltos "Be intellectually humble — if you are studying an interesting question, remember that the question is bigger than one’s intellect. Put your ego aside so you can learn from others, read a lot and respect your co-workers and colleagues at all levels."🙏

1 month ago 26 6 0 1
Preview
Miltos Tsiantis Interview with Miltos Tsiantis, who studies plant development and is a Director at the Max Planck Institute for Plant Breeding Research in Cologne.

Q&A with Miltos Tsiantis, who studies plant development and is a Director at the Max Planck Institute for Plant Breeding Research in Cologne. www.cell.com/current-biol...

1 month ago 28 16 1 3
Post image

Really happy to see this one out: www.sciencedirect.com/science/arti... Alibek's drive & great coll w/ friends @gekaragoz.bsky.social & E. Hallacli resulted in a cool story that starts with our beloved #Marchantia and ends with iPSC-derived neurons 🤩🤪 A short 🧵

1 month ago 119 53 6 7
Advertisement
CEPLAS: Call 2026

CEPLAS starts a number of new projects, and we are looking for 12 Postdocs ❗
CEPLAS projects are always highly collaborative, that means postdocs working with us will always closely interact with several CEPLAS research groups. Find all postdoc openings here: www.ceplas.eu/en/training-...

2 months ago 27 33 0 2
Cross section of hypocotyl of 8-week-old Arabidopsis thaliana. The ovac mutant displays enhanced secondary vessel differentiation (red) at the expense of parchenchyma cells. Images A2 and B2 show the vessel cells only. SR2200 and Fuchsin staining. Imaged by Donghwi Ko.

Cross section of hypocotyl of 8-week-old Arabidopsis thaliana. The ovac mutant displays enhanced secondary vessel differentiation (red) at the expense of parchenchyma cells. Images A2 and B2 show the vessel cells only. SR2200 and Fuchsin staining. Imaged by Donghwi Ko.

How plants control fleshy & woody tissue growth🥕🪵
Ykä Helariutta’s labs at @slcuplants.bsky.social & @helsinki.fi reveal how plants fine-tune xylem development to balance growth — with big implications for crops and forestry

📜@science.org www.science.org/doi/10.1126/...
ℹ️ shorturl.at/YLnUw

2 months ago 12 4 1 1