Max Josse

New OA Article: "Transport of phenoxyacetic acid herbicides by PIN auxin transporters" rdcu.be/eiJXf

PINs are key players in distributing phenoxyacetic acid herbicides. Mutagenesis and cryo-EM structures elucidate substrate specificity and transport mechanisms. #PlantScience

(2/2) Have a look to get our views on how biosensors could be and have been used to illuminate many aspect of plant biology, from energetics to development and biotic interactions; and some insights on biosensor engineering.

@botanicaljim.bsky.social
@bijuntang.bsky.social
@xanderjones.bsky.social

(1/2) This week’s #fluorescencefriday is PM marker in Arabidopsis shoot apical meristem.

Also, our new review on Plant Biosensors across scales in out in @annualreviews.bsky.social

www.annualreviews.org/content/jour...

We wrote a review about how #fluorescent #biosensors are illuminating #PlantScience accross scales to let us ask new questions.

@maxjosse.bsky.social @bijuntang.bsky.social @xanderjones.bsky.social

Get it here (Open access):
doi.org/10.1146/annu...

Fig. 1 Photostable and fluorescence properties of mScarlet3-S2. a, b, Photostability of red emitting mScarlet variants expressed in live U-2 OS cells under continuous WF illumination at 1.9 W/cm2

A highly photostable monomeric red fluorescent protein
www.researchsquare.com/article/rs-5...

Auxin fluctuation and PIN polarization in moss leaf cell reprogramming Auxin and its PIN-FORMED (PIN) exporters are essential for tissue repair and regeneration in flowering plants. To gain insight into the evolution of this mechanism, we investigated their roles in leav...

Tang, Chen, and Friml show that moss' special superpower of de-differentiation and regeneration depends on auxin transport. I missed this preprint from a week ago (in Cell Biology subject instead of Plant Biology).
#PlantEvoDevo #PlantScience #auxin
www.biorxiv.org/content/10.1...

Dear French and Japanese colleagues, mark your calendars!

We are organising the bilateral France-Japan "Frontiers in Plant Biology" symposium.

Date: November 19-21, 2025
Location: Strasbourg

More information soon!
#plantscience

There is ONE WEEK left to apply for the #PlantScience #PhD position in my lab! This will use the latest #microscopy, #biosensor and #ecophysiology techniques!

Auxin and tryptophan trigger common responses in the streptophyte alga Penium margaritaceum https://www.biorxiv.org/content/10.1101/2024.12.06.627236v1

👀

mechanical forces
#hormones
#cellwall
#morphogenesis
#cytoskeleton

www.cell.com/developmenta...

Happy #fluorescencefriday! imaging of one of our FRET #biosensors in Arabidopsis roots 🌱
From @slcuplants.bsky.social dream microscopy facility 🔬

New preprint from the Estelle lab! A subset of Aux/IAA repressors are regulated by CUL3-based ubiquitin ligases. Great work by two fantastic colleagues, Zhaonan Ban and Yueh-Ju Hou!

The email announcement of International Plant Growth Substances Association (IPGSA) Conference in 2025 in Fort Collins, Colorado, USA is just out! Please spread the word of what will be a very exciting conference in a beautiful place. #IPGSA2025

SPIRRIG is required for BRICK1 stability and salt stress induced root hair developmental plasticity in Arabidopsis @ Stress Biology

link.springer.com/article/10.1...

New preprint from the Barberon lab!
Seen @PPLplantarum

🧪 Léa Jacquier et al. 2024
Directional Cell-to-cell Transport in Plant Roots

💡Plasmodesmata enable unidirectional nutrient flow in differentiated roots, overcoming apo-barriers like Casparian strips!

🔗 doi.org/10.1101/2024...

#PlantBiology

A grey coloured Arabidopsis leaf epidermis, with black cell walls. Each cells has a colourful blobs - a nuclear localised fluorescent ABA sensor, with warm colours indicating high concentrations, and cooler colours indicating lower concentrations.

The Rowe lab is recruiting a #PlantScience PhD student for 2025! You'll use our new ABACUS FRET biosensors to map the dynamic leaf #AbscisicAcid accumulations at low humidity in Arabidopsis, wheat and rice. #PhDposition

www.findaphd.com/phds/project...

Redirecting

A predictive #model for ethylene-mediated auxin and cytokinin patterning in the #Arabidopsis #root by Simon Moore, George Jervis, Jennifer Topping, Chunli Chen, Junli Liu & Keith Lindsey

https://buff.ly/4es2y35 via Plant Communications #PlantScience 🧪

Please repost. We are offering a rare opportunity to work as a postdoc or PhD within an international network pushing the boundaries of developmental biology. Please contact me ASAP if interested. www.sydney.edu.au/science/news...

Happy #fluorescenceFriday, "fluorescence" *

We've now moved into the era where we can discover how plants establish and eliminate hormone patterns, to determine their function. Amazing work by Jayne, Annalisa, Bijun, Wolf and Xander! Plus there is a more reversible, smaller phenotype Gibberlellin biosensor (GPS2).