Now published @PNASNews! SAGA1 and SAGA2 localize the starch sheath to the pyrenoid in Chlamydomonas reinhardtii www.pnas.org/doi/10.1073/...

Hornwort pyrenoids: a terrestrial exception with engineering lessons. @tarobison.bsky.social @fernway.bsky.social @laura-gunn.bsky.social @jcarlosvillarreal.bsky.social academic.oup.com/plphys/advan...

This is a section of juvenile moss (Physcomitrium patens) tissue, called protonemata. The apical cells expand by tip-growth, while subapical cells sometimes divide to make lateral filaments. Cytosolic GFP is in green, and chlorophyll autofluorescence is in magenta. #microscopymonday #moss

Don't be shy to take on a little two-week side project. These five months will be the most precious three years of your academic journey.

Cities aren't loud. Cars are loud! @thewaroncars.bsky.social

🍀🔬 🔖 Kinase Partner Zinc Finger Protein modulates pollen tube growth by influencing tip vesicle trafficking @plantphys.bsky.social 🔗 doi.org/10.1093/plph... 🔬 In the movie, Co-expression of SP1-mRFP and KPZP-eGFP in pollen tube.

We want to remind people that the "V" in "EV" stands for "vehicle," not "car." Electric cars have a very important role to play as we try to wean the world off of fossil fuels, but if you're able to go car-free or car-lite by getting an electric bike, that's even better.

Update: carbonic anhydrases in plants, algae, and cyanobacteria Jim Moroney LSU. academic.oup.com/plphys/advan...

It's the last week of the hornwort class, we'll be discussing species boundaries, ecology, biogeography and genomics. We'll have the pleasure of having @peterwschafran.com as our invited guest sharing his knowledge on hornwort genomics.

I looked at an Isoetes while I was in Crete on holiday & under full inundation it forms a near-continuous marginal band. Mapping suggests ~2,500 plants rather than ~30 previous, so detectability/hydrology story. A geophyte persisting as a corm- a neat drawdown strategy. @bsbibotany.bsky.social

Sorry Duke maybe you shoulda kept your herbarium 💁‍♀️😡

Plant science research weekly, March 27 plantae.org/plant-scienc... Review: Rare variants in crop genomes; “Conservatory” uncovers conserved non-coding sequences; Quinine deconstructed; Hornwort Rubisco promotes pyrenoids in other plants; Salt extrusion from mangrove pneumatophores (1/2)

Our first study on how the leaf succulent Kalanchoë laxiflora makes stomatal subsidiary cells is finally peer-reviewed & out - and it made the cover! 🌵 🧬 🔬 doi.org/10.1126/scia... Despite 150 years of evolution, grasses and Crassulacean succulents use the SAME gene to make subsidiary cells! 🤯

Now published @natcellbio.nature.com! Kinase KEY1 controls pyrenoid condensate size throughout the cell cycle by disrupting phase separation interactions www.nature.com/articles/s41...

Our fantastic #FluorescenceFriday featured image was acquired by @juliazheku.bsky.social, a graduate student with @aribidopsis.bsky.social. The image shows a maize cross section, with a developing nodal root breaking through the basal stem node. Check out our post ⤵️:

Excited to announce I’m starting a new lab at @gmivienna.bsky.social (Vienna BioCentre) in Sept 2026 We study how carbon fixation is inherited and maintained in algae using cryo-ET, imaging, environmental sampling&more Looking for people who want to build the lab together, get in touch! #teamtomo

🚨Preprint! Happy to share the research from my PhD “Genome delivery of a contractile tailed phage and its superinfection exclusion mechanism”. We use cryoEM to study the genome ejection of the phage T4, revealing how the tape measure protein regulates the process. www.biorxiv.org/content/10.6...

Do you like it when weird organisms do silly things?? Then you're going to love this!

🚨New paper: We found - contrary to expectations - that oxygen is partially excluded from biomolecular condensates. We find a strong anti-correlation between oxygen and protein concentrations in the condensate showing that accessible volume dominates over polarity. www.nature.com/articles/s41...

In this world, shipmates, sin that pays its way can travel freely, and without a passport; whereas Virtue, if a pauper, is stopped at all frontiers. -Melville

I'm already sick of "It's all a distraction from Epstein" replies. This regime is killing innocent people because our leaders are all power-hungry tyrants and war profiteers. When you say it's "just a distraction" you minimize the gravity of what's happening and the lives lost.

Rhizoids function as nutrient uptake organs in a non-vascular land plant Kanno et al. nph.onlinelibrary.wiley.com/doi/10.1111/...

Evolutionary mobility and genetic dynamics of MORFFO genes: shuttling among ancient plant lineages Labiak et al. nph.onlinelibrary.wiley.com/doi/10.1111/...

How could a simple self-replicating system emerge at the origins of life? RNA polymerase ribozymes can replicate RNA, but existing ones are so large that their self-replication seems impossible. Could they be smaller? Excited to share our latest work in @science.org on a new small polymerase. 1/n

Great fun working with Manajit Hayer-Hartl and her amazing team at @mpibiochem.bsky.social bringing this work on the beta-carboxyome protein ApN (CcmN) together.

Look at this 🙂 #CryoEM Structural basis for CTCF-mediated chromatin organization by @lucas.farnunglab.com @voslab.org www.biorxiv.org/content/10.6...

Functional characterisation of bicarbonate transporters from the cyanobacterial SbtA2 family and subsequent expression in tobacco academic.oup.com/jxb/article/... @jxbotany.bsky.social

SAGA1 and SAGA2 localize the starch sheath to the pyrenoid in Chlamydomonas reinhardti @mjonikas.bsky.social www.biorxiv.org/content/10.6...

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

Next week we will have the pleasure of hosting Dr. Tanner Robison. Tanner will be talking about carbon concentrating mechanisms and hornwort pyrenoids ! @btiscience.bsky.social @ulaval.ca @ulaval.ca www.nature.com/articles/s41...

Sticker number modulates pyrenoid condensate assembly to support algal fitness Looking forward to reading this! @james-r-barrett.bsky.social @phaips.vd.st ps.vd.st www.biorxiv.org/content/10.6...

Having fun with the microscope lately. Here’s one of my favourite artsy and slightly psychedelic shots of #Marchantia chloroplasts and a fluorescent membrane reporter. (z-stack maximum projection)

The people of Minnesota did that. Not Schumer and Jeffries, not Walz and Frey, not the standard-bearers of decorum. The People.

brass solidarity band performing “stand by me” in the streets of whittier next to alex pretti’s memorial. the crowd started chanting “the people united will never be defeated” so they incorporated it into the song. i love minneapolis

From my go-to bikepacking website where I've never read anything remotely political. That's where we're at now bikepacking.com/news/alex-pr...

Got this from a first-year law student today. I’m going to turn comments and quotes off because I am going to respond in my own way and am not looking for advice. But I think people should see it.

Memory is a fragile thing in this moment, so it is important to keep in mind that Hakeem Jeffries refused to whip his caucus against ICE funding earlier this week.

It’s possible we live in a country where 25-35% of the population thinks it’s good and just that masked armies are sent into blue cities to execute people who vote the wrong way

One court decision, two different headlines. Guardian on the left, NY Times on the right. Which one more directly conveys information and the stakes to the reader?

Interested in learning about hornworts? Check out the on-line hornwort class www.eaglehill.us/programs/sem...

Carney in Davos:

Yesterday it was cows using tools, today its penguins using satellite imagery.

🧪Scientists from our Haselbach lab captured how proteins begin to fold as they’re being made. Using cryo-EM, they visualised chaperones guiding nascent proteins on the ribosome: https://www.nature.com/articles/s41467-025-67685-6

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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...

Absolute stunning pyrenoid review well worth the read!

How does protein folding change inside biomolecular condensates? Our new preprint put forwards a framework for predicting this!! 🥳🥳🥳🥳 work by the talented @nathanieldhess.bsky.social

A reminder that not so long ago we honored immigrants in the US, even by carving monuments like this one at Immigration Point, over the Golden Gate connecting the Pacific to SF Bay. @hcrichardson.bsky.social @rebeccasolnit.bsky.social