Charis Ramsing

@charisramsing.bsky.social

PhD Candidate at UC Davis. Big fan of plant-microbe interactions, nature, and a littttleee too into women’s soccer. (she/her/hers)

The U.S. government requires visa applicants to make all of their social media accounts fully public or risk being denied entry. This is straight out of 1984. Your right to privacy doesn’t just disappear at the border for millions of people, it disappears before they ever set foot here.

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Excited to share our new preprint! We explore how experimental context influences immune responses triggered by elf18 and flg22 in Arabidopsis. Huge thanks to @gittacoaker.bsky.social for her guidance and support, and to Hanxu Sha for her help on this project. www.biorxiv.org/content/10.6...

Experimental Context Shapes PRR-Mediated Immune Output Sensitivity in Arabidopsis

Pattern recognition receptors (PRRs) mediate plant immune responses by detecting extracellular immunogenic patterns, including microbe-associated molecular patterns (MAMPs). PRR signaling is commonly assessed using assays such as reactive oxygen species (ROS) bursts, cytosolic calcium influx, mitogen-activated protein kinase (MAPK) activation, and seedling growth inhibition (SGI), which are performed in distinct experimental systems, including seedlings grown on artificial media and soil-grown rosettes. Here, we systematically compare receptor kinase immune outputs triggered by the bacterial MAMPs elf18 and flg22 in Arabidopsis thaliana seedlings and rosettes across a range of concentrations. Rosettes exhibited greater sensitivity than seedlings in ROS assays, whereas cytosolic calcium responses measured using the Aeqcyt/pMAQ2 reporter were stronger in seedlings, correlating with reduced reporter transcript accumulation in rosette tissue. MAPK activation was consistently stronger in rosettes, whereas SGI assays revealed higher sensitivity to elf18 than flg22 in seedlings despite flg22 inducing stronger early signaling outputs. Together, these results demonstrate that canonical PRR-mediated immune outputs are differentially sensitive to experimental context and should not be interpreted as interchangeable measures of immune activation. These findings highlight the importance of considering experimental conditions when comparing immune responses across assays and developmental stages. ### Competing Interest Statement The authors have declared no competing interest. National Institutes of Health, https://ror.org/01cwqze88, R35GM136402 Fundación Alfonso Martín Escudero, https://ror.org/02897ye82

biorxiv.org

About last night’s scrambling from gun fire at White House reporters dinner .. Rep Jamie Raskin (D-MD) makes a critical point on CNN: “This is happening in schools across the country.. the kids have no resources to process their trauma”

I'm one of those trans women. I worked ground ops for Artemis I. I am torn between celebrating the success of my friends and peers and grieving how my dream of working for NASA was shattered by hateful assholes in Tallahassee

Takaichi’s Castle@discographette.online · 4mo ago

congratulations to the astronauts who get credit for a moon mission using rocket development work by trans women who had to quit their job and flee the state of florida and can’t celebrate this win with their coworkers

ICE in Minnesota: They tear gas protestors detained on the ground. They murdered Renee Good They kidnapped a 5 year old and used him as bait; kidnapped 2 year old They beat and murdered a VA nurse Then ICE leaders went on TV and lied about it Ultimate gaslighting

Former Special Counsel Jack Smith: "I stand by my decisions as special counsel, including the decision to bring charges against President Trump. Our investigation developed proof beyond reasonable doubt that President Trump engaged in criminal activity... No one should be above the law".

Washington DC has 702,000 people, is 45% Black and has 0 senators Wyoming has 590,000 people, is 86% white and has 2 senators DC needs a state with proper representation, not a military takeover

Missing my fellow Coakerites today! I tried to recreate my favorite MPMI 2023 photo but this time it’s just me 😢. Another reminder of the impact politics has on science and that many incredible academics working in the US aren’t here this year. #2025ISMPMI

Four Coaker lab members posing with our fancy fabric posters at IS-MPMI 2023Me posing with my fabric poster as a cape in this year’s MPMI poster hall