IBMP | Institut de biologie moléculaire des plantes

// CAREER STORY //

🔍 Exploring the hidden battle between viruses and crops🦠🌱

💻 Laura Elvira González, a Spanish postdoctoral researcher based in France, is studying the molecular mechanisms of virus tolerance in plants.

www.linkedin.com/posts/euraxe...

@ibmp-cnrs.bsky.social @unistra.fr

Excited to be at #ISMPMI2025! Come visit poster P-257 to learn about the role of siRNAs in symptom recovery during viral infection @ibmp-cnrs.bsky.social

Final result is out! Small RNA mobility and plant virus diseases.

Check it out in Journal of Experimental Botany:

academic.oup.com/jxb/advance-ar…

@ibmp-cnrs.bsky.social

Nissolia brasiliensis as a non-nodulating model legume The nitrogen-fixing root nodule symbiosis (RNS) is specifically formed by four orders of angiosperms. The largest of these four orders include the legume family, the Fabaceae. Among legumes, historica...

Latest #preprint from the lab @biorxivpreprint.bsky.social

Please welcome Nissolia brasiliensis, the new non-nodulating model legume ☘️ developped by Camille Girou in the team!

Work led by Tatiana, with input from many!

www.biorxiv.org/content/10.1...

🧬 Single-cell atlas unlocks rice's genetic secrets! 116K cells reveal hidden developmental networks – game-changer for crop improvement 🌾 #Genomics #PlantScience #CellBiology https://emmecola.github.io/genomics-daily

Research Fellow (Postdoctoral) at University of Birmingham An opportunity for an academic position as a Research Fellow (Postdoctoral) is available, as advertised on jobs.ac.uk. Apply now and explore other academic job openings.

I have a Postdoctoral Research Fellow position starting in January to study the evolution of seed gene networks using the fern Ceratopteris! Interested? More info here:
www.jobs.ac.uk/job/DNU179/r...

Closing date 31st July. 🙂
#PlantScience
#PlantSciencejobs

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.

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...

Nice job opportunity in a nice lab with a great PI.

#postdoc
#plantscijobs
#branching
#plantdev

YouTube video by GDR Imabio - CNRS GdR Imabio : microscopie solidaire au Burundi - 12 au 26 mai 2025

🔬✨ Solidarity Microscopy in Burundi 🇧🇮
From May 12–26, GDR ImaBio helped train scientists and explore nature with the University of Burundi.
▶️ youtube.com/watch?v=Qj6o...
📰 savoirs.unistra.fr/eclairage/un...
Donate : 📧 microscopie-solidaire@services.cnrs.fr
#ScienceForGood

🎉🔥 Yesterday, the IBMP team gathered for our annual BBQ! A perfect mix of sunshine, good food, and great colleagues. Thanks to everyone who joined and helped make it such a fun and delicious event! 🌞🍽️ #BBQ #LabLife

♻️ From waste to green gold!
IBMP-IPHC researchers & partners turn polluted wetland plants into liquid fertilizers, removing up to 95% of toxic pollutants while boosting crop health. A sustainable step forward for agriculture! #PlantScience
🔗 doi.org/10.1038/s414...

Box 1 (shortened- see paper for full legend): The schematic figure illustrates recent findings on the intimate interplay between histone variants and DNA methylation in Arabidopsis thaliana. (A) Choi et al. (2021) and Harris et al. (2024) showed that the absence of linker histone H1 leads to a redistribution of Pol IV and Pol V from euchromatin to heterochromatin, enabling RdDM to act on the body of long heterochromatic TEs. (B) Choi et al. (2021) offered evidence that, in the absence of H1, Pol IV is still recruited to heterochromatin even when H3K9me2 is severely reduced (h1cmt2cmt3), supporting a model where RdDM functions in a feedback loop with its own targets. (C) Bourguet et al. (2021) described that the absence of H2A.W leads to the accumulation of H1 in heterochromatin, which reduces RdDM- and CMT2-dependent DNA methylation. This indicates that H2A.W regulates H1 accumulation in heterochromatin.

🧬🌱 SPECIAL ISSUE EXPERT VIEW 🧬🌱

📖 Edera & Quadrana review how the interplay between histone variants and DNA methylation is essential for cellular function in Arabidopsis thaliana, with chromatin remodeling serving as a coordinating factor.

🔗 doi.org/10.1093/jxb/...

#PlantScience 🧪

Figure 2 (shortened, see paper for full legend): Long non-coding RNAs participate in both activation and repression of genes preventing germination. (A) Under red and far-red light conditions, phytochrome B (phyB) promotes accumulation of the HIDDEN TREASURE 1 (HID1) lncRNA in the radicle of germinating seeds to repress transcription of genes which slow germination. For the repressor PHYTOCHROME-INTERACTING FACTOR 3 (PIF3), HID1 RNA directly interacts with the chromatin in its promoter region, repressing transcription. For other genes such as the ABA biosynthesis gene 9-CIS-EPOXYCAROTENOID DIOXYGENASE (NCED9), HID1 not only interacts with the chromatin in its promoter region, but also with the histone methylase ARABIDOPSIS TRITHORAX-RELATED7 (ATXR7) to suppress its ability to deposit the activating gene body mark H3K4me3, thus reducing transcription of NCED9. (B) Transcription of the dormancy-promoting gene DELAY OF GERMINATION1 (DOG1) is induced and repressed by different lncRNAs.

🌱🧬 SPECIAL ISSUE REVIEW 🌱🧬

Tremblay & Qüesta discuss how examining the seed-to-seedling transition can reveal how non-coding RNAs and epigenetic changes regulate transcription during developmental transitions.

🔗 doi.org/10.1093/jxb/...

#PlantScience 🧪 @jiquesta.bsky.social‬

Fig. 7.Proposed model for the role of DNA methylation (DNAme) in the regulation of hypocotyl elongation during thermomorphogenesis in Arabidopsis. DNAme represses expression of SDC to prevent degradation of PIF4, probably by promoting GA-mediated inhibition of DELLA, thereby enhancing warm-induced auxin biosynthesis and hypocotyl growth. In addition, repression of SDC affects other aspects of auxin metabolism in a PIF4-independent manner (dashed orange line). Besides SDC repression, DNAme might also influence additional regulatory pathways to promote temperature-induced hypocotyl growth (dashed gray and black lines).

☀️ SPECIAL ISSUE RESEARCH 🌡️

📖 Garro et al. show that non-CG DNA methylation represses SDC expression to regulate auxin & gibberellin-related genes, maintaining hypocotyl elongation in warm temps.

🔗 doi.org/10.1093/jxb/...

@maigarro.bsky.social‬ @maticapella.bsky.social‬
#PlantScience 🧪

ASHS Career Center

ASHS Career Center

Director, School of Plant & Env Sci, VT ow.ly/qVvf50Wiu28

Assc Prof or Prof of Agricultural Irrigation and Water Resources Mgmt, NMSU ow.ly/Mwgs50Wiu29

Asst Prof/Specialty Crops Entomologist, NMSU ow.ly/oqsc50Wiu2a

ashscareers.careerwebsite.com/jobs/
#plantsciencejobs

Fig. 1. (shortened): RNAPII transcriptional elongation through chromatin. The schematic representation depicts an RNAPII elongation complex shortly after transcriptional initiation just downstream of the transcriptional start site (TSS), approaching a +1 nucleosome. The C-terminal domain (CTD) of elongating RNAPII (cyan symbol) typically is phosphorylated at specific serine residues within its heptapeptide repeats (i.e. S2P and S5P) (Jeronimo et al., 2016; Harlen and Churchman, 2017). RNAPII associates with various, functionally distinct TEFs (yellow symbols), forming the transcript elongation complex (Obermeyer et al., 2024), to assist passage through nucleosomes (blue symbols), as nucleosomes represent obstacles to elongation (arrow indicates direction of transcription). See the paper for the full figure legend.

🪴🧬 SPECIAL ISSUE REVIEW 🌡️⚙️

The role of RNA polymerase II transcript elongation factors in plant stress responses - Klaus D. Grasser

🔗 doi.org/10.1093/jxb/...

#PlantScience 🧪

insightful review on how seeds decide to germinate
from omics research perpective
transcriptomics, proteomics, epigenetics - it’s not just germination, it’s well-organized coordination
worth reading!
doi.org/10.1093/jxb/...
#seedomics #plantdevelopment #spatialomics
@lewseylab.bsky.social

with a beautiful cover by Yihan Dong

#PlantScience

Ubiquitin-dependent proteolysis of KNL2 driven by APC/CCDC20 is critical for centromere integrity and mitotic fidelity Controlled degradation of the kinetochore protein KNL2 during cell division preserves genome stability and promotes normal plant growth and development.

🧬 How do cells ensure the integrity of centromeres during mitosis? Read the new paper headed by I Lermontova (@leibnizipk.bsky.social‬) and co-authored by P Genschik & E Lechner (@ibmp-cnrs.bsky.social‬) published in ‪@theplantcell.bsky.social‬
.
🔗 doi.org/10.1093/plce...

La Terre décrit-elle sa propre horloge géologique ? Et si la Terre battait son propre tempo géologique ?

[1/3] Slah Boulila, enseignant-chercheur à Sorbonne Université (ISTeP - CNRS), révèle que la Terre suit une horloge interne : un cycle géologique de 60 millions d’années rythme tectonique, chimie des océans et biodiversité marine depuis le Phanérozoïque. #geosciences #geology

Box 1 The organization of genomic DNA into chromatin permits a dynamic regulation of the gene expression programme. Environmental and developmental signals that need to translate into an altered gene expression programme may elicit changes at the level of chromatin organization including the methylation of cytosines in the DNA molecule, the incorporation of specific histone variants into the nucleosome, and the setting of histone post-translational modifications. Together these different layers of epigenetic information allow the control of genome plasticity (e.g. by controlling mobile genetic elements), and permit the establishment of transient or heritable gene expression states to orchestrate developmental programmes and stress responses. The development of tools including cytidine analogues or epigenome editing provides the opportunity to artificially interfere with epigenetic regulation and to investigate chromatin-based epigenetic mechanisms. Created in BioRender. Catoni, M -2025

📝 SPECIAL ISSUE EDITORIAL 📝

🧬 Epigenetics 🧬

🔎 Guest editors Catoni, Lechon & Probst dive into expert views, reviews, and original research exploring how plant epigenetics integrates developmental & environmental signals 🌱

🔗 doi.org/10.1093/jxb/...

#PlantScience 🧪 @alineprobst.bsky.social

On the cover of New Phytologist volume 247, issue 2: Spittlebug (Philaneus spumaruis) producing foam on tall goldenrod (Solidago altissima). Image courtesy of André Kessler.

On the cover of our #LatestIssue: Spittlebug (Philaneus spumaruis) producing foam on tall goldenrod (Solidago altissima). Image courtesy of André Kessler.

📖 See Kessler et al.: nph.onlinelibrary.wiley.com/doi/10.1111/...

#PlantScience

🌽 A dream maize seed phenotype—finally real❗

Two KIL TFs trigger lytic cell death in endosperm (EAS) ➡️ boosting embryo growth!

@theplantcell.bsky.social‬

Huge credit to @moritznowack.bsky.social & N. Doll for leading this work 🙌 Fantastic collaboration 🤝

📖 academic.oup.com/plcell/advan...

🎓 Congrats to Élody Vallet for successfully defending her PhD on “Cellular responses to mitochondrial genome damage in plants” on June 5, 2025! A great achievement under the supervision of José Gualberto 👏🌱 #PhDDefense #PlantScience #PlantScienceResearch

Interested in the evolution of molecular interactions ? We are recruiting a new PhD student with a background in proteomics to study the diversification of the receptor-ligand interaction controlling plant self-incompatibility.
--> details here : initiative-excellence.univ-lille.fr/fileadmin/us...

YouTube video by KeystoneSymposia Plant Epigenetics Meeting Promo

🌿 Postdocs & ECRs—Last chance to present at #KSPlantEpi26! Submit your abstract or scholarship app by July 2 (11:59pm MT). Join Xiaofeng Cao & global leaders in plant epigenetics.

🔗 keysym.us/KSPlantEpi26
🎥 youtu.be/dGufMz8IQMY

#PlantEpigenetics #PlantScience @claudiakohler11.bsky.social

Protection against damage DNA-damages occur on a regular basis. Now a new study from Chinese researchers in Science Advances shows that the stress hormone ABA stimulates plants to find DNA breaks.

DNA-damages occur on a regular basis. Now a new study from Chinese researchers in Science Advances shows that the stress hormone ABA stimulates plants to find DNA breaks.
You can read more about this study on my blog plantenzo.net/2025/06/17/p...

🧪 #PlantScience