Hyeonmin Jeong

Ralph S. Quatrano, former dean of Engineering, 84 Celebration of life to be held May 9 in Whitaker Hall at WashU

I am saddened to learn that Ralph Quatrano has passed away. He was a great inspiration to many young moss researchers. We will miss him.
engineering.washu.edu/news/2026/Ra...

Fungal symbioses: A multiplicity of fungi in the lichen union Increasing evidence suggests that lichens are not just a partnership between one fungus and one alga or cyanobacterium but may contain multiple intera…

Thrilled to see this published! 😄
Our dispatch examines potential additional fungal symbionts in lichen partnerships and the key challenges in unraveling their biology.

Thanks for involving me in this @talbotlabtsl.bsky.social

@currentbiology.bsky.social

www.sciencedirect.com/science/arti...

An unconventional Rubisco small subunit underpins the CO2-concentrating organelle in land plants In many algae, photosynthesis is boosted by biophysical CO2-concentrating mechanisms, which pack the CO2-fixing enzyme Rubisco into liquid-like organelles called pyrenoids. Engineering C3 crops with a...

Our work on #hornwort #pyrenoids is finally out in @science.org! 🎉 We uncovered how hornworts pack their Rubisco into pyrenoids and successfully recreated them in Arabidopsis. A key step toward engineering more efficient photosynthesis in crops @btiscience.bsky.social www.science.org/doi/10.1126/...

So many congratulations Katharina et al!!

1/ ✨ New preprint alert ✨

It is my pleasure to share:
"Stepwise evolution of the developmental and symbiotic functions of DELLA in land plants"

Here we investigated the role of the single GRAS transcription factor DELLA in #MyMarchantia

doi.org/10.64898/202...

#PlantScience
A thread...

Spiral phyllotaxis in the moss Physcomitrium patens emerges from simple division rules of the apical cell Cammarata et al. explore how cell division orientation generates phyllotaxis in moss with a unicellular meristem. They show that successive rotational divisions in the apical cell are precisely placed...

Spiral phyllotaxis in the moss Physcomitrium patens emerges from simple division rules of the apical cell: Current Biology www.cell.com/current-biol...
#plantscience

Rhizoid‐mediated phosphate uptake and internal transport in the non‐vascular plant Marchantia polymorpha Click on the article title to read more.

Rhizoid‐mediated phosphate uptake and internal transport in the non‐vascular plant Marchantia polymorpha nph.onlinelibrary.wiley.com/doi/full/10....

I third this. Orange brown phenolic compounds from gametophore rhizoids are pretty stubborn, they remain in pellets even after two rounds of phenol-chloroform washing

Comic. [2x2 chart. Top left quadrant: seem like dinosaurs x are dinosaurs. Silhouettes of dinosaurs stegosaurus, triceratops, tyrannosaurus, velociraptor, and long-neck dinosaur. Top right quadrant: seem like dinosaurs x are not dinosaurs. Silhouettes of mosasaur, quetzalcoatlus, dimetrodon, plesiosaur, and pteranodon. Bottom left quadrant: don’t seem like dinosaurs x are dinosaurs. Silhouettes of penguin, egret, ostrich, pigeon, falcon. Bottom right: don’t seem like dinosaurs x are not dinosaurs. Silhouettes of squirrel, stapler, plant, person, and bicycle.]

Dinosaurs And Non-Dinosaurs

xkcd.com/3204/

Moss BRCA2 lacking the canonical DNA-binding domain promotes homologous recombination and binds to DNA Abstract. BRCA2 is crucial for mediating homology-directed DNA repair (HDR) through its binding to single-stranded DNA (ssDNA) and the recombinases RAD51 a

Moss BRCA2 lacking the canonical DNA-binding domain promotes homologous recombination and binds to DNA

academic.oup.com/nar/article/...

Life cycle of Cyanidiophyceae.

Fascinating single-cell red algae: models for evolution and adaptation

#TansleyReview by Berger et al.

nph.onlinelibrary.wiley.com/doi/10.1111/...

#plantscience

Pangolin distribution and conservation status in Bangladesh Asian pangolins are a highly-threatened species group, mainly due to the perceived medicinal value of their scales. Increased demand from China has resulted in pangolins being the most trafficked…

February 21 is #WorldPangolinDay. There are 8 species of pangolin, all of which are vulnerable, endangered or critically endangered. These 4 studies in @plosone.org explore the biology, ecology and conservation of 3 of these species.

plos.io/4rWgjOB plos.io/473kwYO plos.io/4rtVnPq plos.io/4rnrboZ

Marchantia might seem an unlikely biotech crop, but it’s worth trying. In Aurore’s thesis, we pushed this concept by engineering the auronidins with MpMYB14 and using the pigments to dye cotton. It ended up giving a very unique and beautiful product. #PlantScience www.biorxiv.org/content/10.6...

1/9 Our latest paper on immunity mechanisms in Marchantia just out @pnas.org ! 🔽

Close collaboration between our former PhD students @karimaelm.bsky.social and @chloe-beaulieu.bsky.social !

and the old gard @jacquet-chris.bsky.social @maximebonhomme.bsky.social

www.pnas.org/doi/10.1073/...

Marchantia polymorpha lines displaying various level of resistance after inoculation with Colletotrichum nymphaeae

What can we learn from the first GWAS on bryophyte immunity? Have these plants evolved immune mechanisms similar to or different from those of angiosperms? (Spoiler: both!)
Our latest paper is out in PNAS! www.pnas.org/doi/10.1073/pnas.2532723123 #Marchantia #Colletotrichum #EVOteam #LRSV

Agrobacterium-mediated stable transformation and selection of Spirodela polyrhiza SP162 calli.

Strain, procedures, and tools for reproducible genetic transformation and genome editing of the emerging plant model Spirodela polyrhiza

Verónica Barragán-Borrero, et al.

📖 nph.onlinelibrary.wiley.com/doi/10.1111/...

🧵 2/2

Crinkler proteins—first discovered in Phytophthora—can be fused to ADP-ribosyltransferases, acting as epigenetic parasitic elements in free-living eukaryotes.
#AACRNL #Evolution doi.org/10.1038/s414...

How does molecular valency shape condensate assembly and function? We used the CO2-fixing organelle in algae—the pyrenoid—to find out… 🧵

Preprint here!:
www.biorxiv.org/content/10.6...

@cellarchlab.com @phaips.vd.st @biologyatyork.bsky.social
#Rubisco #PhaseSeparation #Condensates #Pyrenoid

#MAdLand Expression: adding sexual reproduction stages to the #Physcomitrium patens web tool. Great collaboration with @noefpbio.bsky.social @jandevries.bsky.social
@watertoland.bsky.social
Paper online in @theplantjournal.bsky.social
doi.org/10.1111/tpj....

Got my PhD yesterday! Had a great discussion during my viva and I'm truly grateful for the support from my supervisors + examiners + friends and peers at TSL. Where I am today has been shaped by all of you — and exciting journeys ahead! 🎓✨

Model systems and available resources in non-seed plants. Overview of available and developing resources (sequenced genomes and transcriptomes, single-cell transcriptomics) and experimental methods (stable transformation, CRISPR-Cas-based genome editing) for the main models. *Marchantia paleacea could also be considered a model system for symbiosis and also has several resources. **Several tools were also developed for Selaginella kraussiana, and the single-cell RNA sequencing (scRNA-seq) is exclusive to S. kraussiana.

With non-seed plant research gaining momentum and a vibrant community emerging, Karima El Mahboubi and Facundo Romani highlight the growing impact of diverse model systems on key questions in plant evolution. doi.org/10.1242/bio....

#MeetingReview #NonSeedPlants #EvoDevo

VACANCY - We're looking for a Postdoctoral Researcher to join the @philcarella.bsky.social Group, working in the field of Evo-MPMI (Evolutionary Molecular Plant-Microbe Interactions).

okt.to/yIlgTU

Closing date - 10 February 2026
Salary - £37,500 - £45,350
Contract - Full-time, 3 years

A Marchantia gemmaling producing ectopic vegetative propagules

Happy to share the pre-print on GEMMIFER, a novel ERF required for the initiation of gemma in Marchantia. One of the coolest phenotypes that I have ever seen. Congratulations to Yuki and Go, who led this research. #PlantScience @biorxiv-plants.bsky.social www.biorxiv.org/content/10.6...

Come and hear me yap about the #LiverwortHunt, a citizen science project which we (@slcuplants.bsky.social) ran in 2021, and was published last year as a part of the Marchantia polymorpha pangenome paper doi.org/10.1038/s415...

TULIP Summer School 2026
Applications are OPEN ✅

“Biological interactions from genes to ecosystems”
will take place from June 27 to July 3, in France 🏔️

Open to PhD, Masters students & Postdoc researchers in ecology, evolution and functional biology

www.labex-tulip.fr/eng/news/tul...

We’re looking for a postdoc to investigate Pseudomonas viridiflava virulence across diverse plant lineages. The 3yr position will combine plant and microbial molecular biology to understand core processes of infection - email for more info & apply online @ www.jic.ac.uk/vacancies/po...

Kamounia striata -- a 300 million year-old oomycete fossil!

Thank you Christine Strullu-Derrien ☺️ doi.org/10.1016/j.is...

Postdoctoral Researcher (Carella Group) | John Innes Centre An exciting opportunity has arisen for a Postdoctoral Researcher to join the Carella Group at the John Innes Centre, working on cutting-edge science in the field of Evo-MPMI (Evolutionary Molecular…

We have an open POSTDOC position to explore Marchantia immune receptor biology that is closing on the 18th of Jan. Apply using the link below, and/or email me for more details. www.jic.ac.uk/vacancies/po...

Cool story! Many congratulations!! 🎉

A novel pathosystem between Aeschynomene evenia and Aphanomyces euteiches reveals new immune components in quantitative legume root-rot resistance. Legumes are pivotal for sustainable agriculture, yet their productivity is hindered by soilborne pathogens such as Aphanomyces euteiches . This study introduces Aeschynomene evenia as a novel model to...

🚨 New preprint alert! 🚨
Excited to share my first preprint from my PhD! 🎉
We introduce a novel Aeschynomene evenia – Aphanomyces euteiches pathosystem to explore links between quantitative resistance and symbiosis in legumes. 🌱🔬
🧾 www.biorxiv.org/cgi/content/...

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