And now also in @lemonde.fr 🎉 www.lemonde.fr/sciences/art...

Le ballet épigénétique derrière la floraison des plantes mis au jour

La vitesse de fleurissement et la quantité de pétales produits par les plantes à fleurs dépendent d’un mécanisme bien orchestré mais complexe. Des chercheurs sont parvenus à déterminer les acteurs et ...

lemonde.fr

Vangeli Geshkovski@vgeshkovski.bsky.social · 2w ago

Happy to finally see this out in a peer-reviewed form 🧬🌱 Congrats to everyone who contributed! www.nature.com/articles/s41...

New pre-print from the @saskiahogenhout.bsky.social lab We (@qunliu07.bsky.social et al.) show that the aphid effector protein CathB6, in addition to suppressing plant immunity via EDS1, also alters the regulation of chloroplast-nuclear signalling to maintain photosynthetic gene expression. 1/n

bioRxiv Plant Bio@biorxiv-plants.bsky.social · last wk.

The aphid effector CathB6 suppresses EDS1-dependentimmunity and rewires MORF2-GUN1-GLK signalling tosustain host cellular homeostasis in Arabidopsis https://www.biorxiv.org/content/10.64898/2026.08.10.743731v1

Thanks for the opportunity! it was my first experience speaking to a big english-speaking audience and, thankfully, it went out good! 🫶🌱🧫

International Society for Molecular Plant-Microbe Interactions@ismpmi.bsky.social · 3w ago

🚨 TODAY! Our Rising Stars of IS-MPMI take the virtual stage at 3PM UTC. Join us to hear about the latest advances in plant-microbe interactions from Nhi, Urooj, Adrian and @fedeaballay.bsky.social. There's still time to register 👉 uchicago.zoom.us/webinar/regi... See you there! #PlantScience

Jim Shorter and his postdoc Miriam wrote a beautiful preview about our most recent paper on mRNAs preventing misfolding of IDR-containing proteins. UTR-ly unexpected: RNA chaperones tame intrinsically disordered proteins: Cell www.cell.com/cell/fulltex...

UTR-ly unexpected: RNA chaperones tame intrinsically disordered proteins

How do cells ensure that complex, multidomain proteins fold correctly? Luo et al. reveal a self-contained solution. The 3′UTR of an mRNA co-translationally chaperones the protein it encodes, preventin...

cell.com

Nice thread by @fedeaballay.bsky.social on part of his PhD work on chloroplast alarmone (ppGpp) signalling and plant immunity. 🌱🦠 #PlantScience

Fede Aballay 🇦🇷@fedeaballay.bsky.social · last mo.

The preprint of our work on ppGpp–immunity crossroads is out! We delved deeper into the regulation of plant immunity by alarmone ((p)ppGpp) in Arabidopsis and found surprising stuff 😱. www.biorxiv.org/content/10.6...

The preprint of our work on ppGpp–immunity crossroads is out! We delved deeper into the regulation of plant immunity by alarmone ((p)ppGpp) in Arabidopsis and found surprising stuff 😱. www.biorxiv.org/content/10.6...

Alarmone ((p)ppGpp) signalling tunes Arabidopsis thaliana nuclear gene expression to shape the balance of plant immune outcomes

RSH enzymes (RelA/SpoT homologs) synthesize ppGpp (guanosine tetra-/pentaphosphate) in plastids, regulating organelle function. More importantly, whether ppGpp acts as a simple rheostat on immune outp...

biorxiv.org

Excited to share our latest preprint on #PhycologyFriday. We map out the carbon fixation pathway for the first time in a multicellular alga, the green seaweed Ulva, and reveal a unique Rubisco-Linker interaction in the pyrenoid, a chloroplast condensate. Below I summarize some key points. #seaweeds

bioRxiv Cell Biology@biorxiv-cellbio.bsky.social · last mo.

A spatial atlas of the seaweed CO2-fixation machinery reveals a unique Rubisco condensation mechanism https://www.biorxiv.org/content/10.64898/2026.07.16.738900v1

Great work by Tian et al. (2026) on how #PlantTOR regulates the protein abundance of EBS, a bivalent #histone reader, by phosphorylating it at Ser195/Ser196 to modulate the floral transition of #Arabidopsis in response to nitrogen availability 🌱💮. 🔗 www.pnas.org/doi/10.1073/...

I've got something to "TORC" about! 😅 After 4 years building this project at @biologyunifreiburg.bsky.social, I'm so excited to share that my first independent preprint is now online! ✨ I hope you like it: doi.org/10.64898/202... A short thread... 🧵 #PlantSci #PlantScience

The TARGET OF RAPAMYCIN (TOR) kinase controls shade-mediated hypocotyl elongation responses in Arabidopsis.

Plants perceive neighboring vegetation through an enrichment of far-red light (shade) in the environment. These changes in light quality trigger molecular and physiological responses aimed at outgrowi...

doi.org

1/7 New preprint: we found that Chlamydomonas carries a giant and unexpectedly elaborate chloroplast RNA polymerase with 12 previously unknown subunits, overturning the idea that the complexity of this organellar enzyme emerged during plant terrestrialization! www.biorxiv.org/content/10.6...

The structure of a 2-MDa chloroplast RNA polymerase reveals unexpected evolutionary complexity

Transcription in chloroplasts depends on the Plastid-Encoded RNA polymerase (PEP), a bacterial-derived enzyme whose catalytic core remains encoded by the highly reduced genome inherited from the cyano...

biorxiv.org

Super exciting work after many conference talks finally seeing the light. Congrats and kudos to all authors: www.biorxiv.org/content/10.6...

Chloroplast sunscreening by protein condensates confers high-light tolerance: Cell www.cell.com/cell/fulltex... @cellcellpress.bsky.social

Chloroplast sunscreening by protein condensates confers high-light tolerance

The conserved MBS1 protein assembles into chloroplast-associated condensates to sense singlet oxygen and shield chloroplasts against excess light penetration.

cell.com

Heat stress induces the formation of unreduced male gametes by targeting translation in Arabidopsis meiocytes (Cédric Schindfessel , Albert Cairo , Pavlína Mikulková , Chunlian Jin , Laura Lamelas , Philip A Wigge , Karel Říha , Danny Geelen) doi.org/10.1093/plce... #PlantScience @aspbofficial

Heat stress induces the formation of unreduced male gametes by targeting translation in Arabidopsis meiocytes

TAM regulates the translation of meiotic cell cycle genes under heat stress to prevent premature meiotic exit and ensure ploidy consistency in the natural

doi.org

Chloroplastic plastoglobules compartmentalize nitrogen assimilation in maize #plantscience www.nature.com/articles/s41...

Plastoglobules compartmentalize nitrogen assimilation in maize - Nature

Chloroplast plastoglobules act as nitrogen-assimilation hubs in maize, with key enzymes enhancing nitrogen-use efficiency and offering new strategies for developing high-yield, sustainable crops.

nature.com

New preprint out 🌱 We present a new T-DNA vector system for Arabidopsis that supports clean, genomically mapped, single-copy T-DNA insertion with predictable cell-type/conditional gene expression. @mokhalil.bsky.social + Gehring labs biorxiv.org/content/10.6... 🧵1/16

Rational design of T-DNA vectors enables predictable, single-copy integration in Arabidopsis thaliana

Agrobacterium-mediated transformation is the dominant method for plant transgenesis, yet it frequently produces multi-copy, structurally complex T-DNA insertions associated with transgene silencing, u...

biorxiv.org

Plants tolerate substantial rates of plastid mistranslation via regulated proteostasis | PNAS www.pnas.org/doi/10.1073/... @pnas.org

Plants tolerate substantial rates of plastid mistranslation via regulated proteostasis | PNAS

In bacteria, protein mistranslation can improve stress tolerance. Mitochondria and plastids evolved from bacteria and use a prokaryotic-type expres...

pnas.org

What a way to be for the first time in Europe!!!! I had the pleasure to work during 3months in the LGBP-CNRS lab in Marseille, France thanks to an UBAINT fellowship! This is just the beginning of such a big collaboration along with @benfield1.bsky.social :))

Proud to share our new paper on how prion-like fungal effectors target plastids and modulate host metabolism during root symbiosis. Exciting collaborative work uncovering PEPSI effectors and the interaction of one of them with DXR in plants. www.biorxiv.org/content/10.6... bsky.app/profile/eell...

Ernesto Llamas@eellamas.bsky.social · 3mo ago

1/ Happy to share our latest work, now on bioRxiv! 🌱🍄 We explore how Serendipita indica effectors target root plastids and modulate plastidial metabolism through prion-like domains. bioRxiv: www.biorxiv.org/content/10.6... #plastids #plantmicrobe #chloroplasts #plants

New preprint dissecting #ppGpp regulation of E. coli RNAP by cryo-EM and NET-seq. Great dissection of allosteric effects, and shows how GTP depletion dominates the in vivo pausing signal. GTP may be the unifying story across lineages- chloroplasts 🌱 included? www.biorxiv.org/content/10.6...

El corazón verde del fuego. Desde el interior de un #volcán extinto en la isla de Terceira, en las Azores, la luz revela un proceso fundamental: la vida #vegetal como fuerza pionera.

Our preprint on an affordable device for plant tissue grinding is out!! “Fast-lyzer”: A low-cost 3D printable device for plant tissue disruption and homogenization www.researchsquare.com/article/rs-9...

We are excited to release the BAT!🦇🚨 We've used this phylogenetic analysis pipeline in our lab for years, and grad Ben Sheppard now presents a Github release and preprint. I run BAT analyses almost daily. It makes exploring gene families routine, customizable, and fun🧵

Why are #tRNA genes organized the way they are in 🌱 plant genomes? In our new @qbiope-bot.bsky.social preprint 🚨📄, we show that their position, copy number, and regulatory sequences are not random! #PlantGenomics #ComparativeGenomics #Evolution arxiv.org/abs/2511.01943 🧶 A thread 👇

Multilevel genomic constraints shape nuclear tRNA gene organization in plants

Transfer RNAs (tRNAs) are essential components of the translational machinery. Their abundance and diversity shape decoding capacity and protein synthesis efficiency and accuracy. Because tRNA abundan...

arxiv.org

We are happy and proud to share our preprint describing an Arabidopsis mutant (named loki:) that develops cell clusters when TOR is inhibited. The mutated gene codes for a component of the conserved eukaryotic RAVE complex regulating V-ATPase activity. www.biorxiv.org/content/10.6...

Next: Salek Ahmed Sajib (CNRS, Marseille 🇫🇷) dives into “The Role of Bioenergetic Organelles — Plastids and Mitochondria — in Arabidopsis Seedling Development in the Dark” 🌑🌿 Organelle talk incoming! #UPSCSymposium #Arabidopsis

For the 4th time in a row, we organise the UPSC (@umeaplantsciencecentre.se) Symposium for Early Career Plant Scientists! 🌱 We invite talented young scientists to present their research, meet our group leaders, explore collaborations, and tour our facilities. Let the day begin! 🧵👇 #PlantScience

Curious about PsbS and Lhcsr in zeaxanthin mediated NPQ? New insights into plant photoprotection Beraldo et al. nph.onlinelibrary.wiley.com/doi/10.1111/...

Hi - we are looking for a PhD student to finish the thapsigargin biosynthesis. If you are up for some great work, then apply.

LBVpam@lbvpam.bsky.social · 5mo ago

📢 PhD stipend opportunity opening soon! ➡️ Title: Thapsigargin biosynthesis and plant biochemistry 📅 Applications open on April 13 on emploi.cnrs.fr #academicjobs #research #highereducation #biochemistry #terpenes #thapsigargin #joboffer #phdstipend #phdopportunity #phd @htsbiotechmoss.bsky.social

Ever wondered how the #cuticle, a hallmark of land plants, was established? In our latest study, we show that the CUTIN SYNTHASE enzyme family was a key driver of this evolutionary innovation. #plantscience ▶️ www.biorxiv.org/content/10.6... A thread 🧵 [1/8]

How microalgae use phytochrome to sense the ocean’s light #TansleyInsight by Duchêne et al. @afalciat.bsky.social nph.onlinelibrary.wiley.com/doi/10.1111/... #plantscience