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Pam Ronald

@pcronald.bsky.social
1.9K followers 693 following 436 posts

UC Davis rice geneticist & co-author of Tomorrow's Table: Organic Farming Genetics & the Future of Food. TED talk. My lab studies genetics for crop resilience & #plant-microbe interactions. Volunteer Ranger USFS. Nature photography

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Reposted by Pam Ronald
Gitta Coaker @gittacoaker.bsky.social · 9h
Postdoc opp; the Katherine Esau Fellowship @UC Davis funds 2–3 years of work on plant structure and function. Curious how plant structure shapes plant-microbe interactions? Get in touch! Due Nov 1, international applicants welcome. www-plb.ucdavis.edu/about/fellow...
www-plb.ucdavis.edu
Department Fellowships
The Department of Plant Biology offers fellowships that support research, scholarship and professional development for graduate students, postdoctoral scholars and faculty. These awards recognize exce...
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Paul Marvin @paulmarvin.bsky.social · 05/10/2026
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Dr. Amy Acton @amyactonoh.bsky.social · 19h
The polls are open, Ohio!! Vote early between today and November 1. Head to actonforgovernor.com/vote for more information.
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Pam Ronald @pcronald.bsky.social · 06/10/2026
Such investigations will be essential to determine whether engineering the OsPSY8 pathway can improve drought resilience while maintaining crop productivity under agronomically relevant conditions. Congratulations Yejin!
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Pam Ronald @pcronald.bsky.social · 06/10/2026
To translate these mechanistic insights into crop improvement strategies, future studies should investigate how modulation of OsPSY8 signaling affects plant performance under soil-grown conditions, including greenhouse and field environments.
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Pam Ronald @pcronald.bsky.social · 06/10/2026
Yejin then showed that OsPSY8 is directly repressed by OsWRKY24, a transcription factor previously shown to positively regulate resistance against Magnaporthe grisea, the causal agent of rice blast disease.
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Pam Ronald @pcronald.bsky.social · 06/10/2026
Yejin made knockouts in rice PSY8 and found that two independent mutants displayed enhanced tolerance to osmotic stress. Survival rates exceeded 60% in both KO1 and KO2, compared with approximately 40% in WT plants
Representative photographs of WT, KO1 (ospsy8-1), and KO2 (ospsy8-2) plants before stress, 4 d after PEG-induced osmotic stress, and 7 d after recovery. (G) Survival rates (%) of WT, KO1, and KO2 plants after recovery. (A, C, and G) Data represent mean ± SD (n = 4 biological replicates). Asterisks indicate statistically significant differences from WT (*P < 0.05; **P < 0.01; two-tailed Student’s t test).
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Pam Ronald @pcronald.bsky.social · 06/10/2026
Great collaborations with Profs. Flor Ercoli, UC Riverside & R. Payne, U Sydney. Read more: www.pnas.org/doi/10.1073/...
pnas.org
Signaling by a tyrosine-sulfated peptide balances growth and osmotic stress response in rice | PNAS
Peptide hormone signaling coordinates plant growth and osmotic stress responses, yet how the transition between these responses is regulated remain...
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Pam Ronald @pcronald.bsky.social · 06/10/2026
These studies raised the question: what is the function of PSY in rice? Our new PNAS study shows that rice PSY8 promotes root growth under favorable conditions but is repressed during osmotic stress, allowing rice to shift from growth to stress adaptation.
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Pam Ronald @pcronald.bsky.social · 06/10/2026
In Arabidopsis, these receptors represses plant growth and activate stress-response genes when they are not repressed by their peptide hormone ligands.https://www.science.org/doi/10.1126/science.abq5735
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Pam Ronald @pcronald.bsky.social · 06/10/2026
Bacterial RaxX competes effectively with plant PSY in binding to the PSY receptors, PSYR2 and PSYR3, indicating that RaxX is also perceived by PSYRs in Arabidopsis.
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Pam Ronald @pcronald.bsky.social · 06/10/2026
A synthetic sulfated RaxX derivative comprising 13 residues, highly conserved between RaxX and PSY, induces root growth in Arabidopsis and rice in a manner similar to that triggered by PSY. A Xanthomonas strain lacking raxX is impaired in virulence.
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Pam Ronald @pcronald.bsky.social · 06/10/2026
It turns out that bacterial RaxX shows similarity to peptides in the PSY (plant peptide containing sulfated tyrosine) family. nph.onlinelibrary.wiley.com/doi/10.1111/...
nph.onlinelibrary.wiley.com
A microbially derived tyrosine‐sulfated peptide mimics a plant peptide hormone
The biotrophic pathogen Xanthomonas oryzae pv. oryzae (Xoo) produces a sulfated peptide named RaxX, which shares similarity to peptides in the PSY (plant peptide containing sulfated tyrosine) fami...
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Pam Ronald @pcronald.bsky.social · 06/10/2026
RaxX triggers a robust and effective immune response in rice expressing XA21. A synthetic 21-amino acid sulfated derivative of RaxX is sufficient to activate XA21-mediated immune responses (Pruitt et al., 2015). www.science.org/doi/full/10....
science.org
The rice immune receptor XA21 recognizes a tyrosine-sulfated protein from a Gram-negative bacterium
A sulfated peptide activates a rice immune receptor.
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Pam Ronald @pcronald.bsky.social · 06/10/2026
What is the molecule recognized by XA21? Rory Pruitt led the identification of a gene, called RaxX (required for activation of XA21-mediated immunity) encoding a small sulfated peptide.
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Pam Ronald @pcronald.bsky.social · 06/10/2026
The sequence of the predicted XA21 protein, which carries both a leucine-rich repeat motif and a serine-threonine kinase-like domain, suggests a role in cell surface recognition of a pathogen molecule and subsequent activation of an intracellular defense response. escholarship.org/content/qt4x...
escholarship.org
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Pam Ronald @pcronald.bsky.social · 06/10/2026
How did Yejin Shim (@yeahgene.bsky.social) engineer osmotic stress tolerance in rice 🌾? The story starts in 1995 when Guoliang Wang and Wenyuan Song led the discovery of the immune receptor XA21.
escholarship.org
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Pam Ronald @pcronald.bsky.social · 05/10/2026
storymaps.arcgis.com/stories/5f43... “Growing up in rural Ohio… I'd often fill my time with the results from searching "cool science videos" in the YouTube search bar, or, when those videos we particularly interesting, I'd attempt to recreate them in my backyard…” Congratulations Oscar!
storymaps.arcgis.com
Oscar Garrett
2026 - 2029 FFAR Fellow
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Pam Ronald @pcronald.bsky.social · 02/10/2026
Wow! The rice RALF7 peptide provides positional information for infection initiation for M. oryzae.
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Pam Ronald @pcronald.bsky.social · 28/09/2026
Sign me up!
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Reposted by Pam Ronald
Anza-Borrego Desert Research Center @anzaborrego.bsky.social · 26/09/2026
Waxing gibbous almost full moon (or Harvest Moon) this evening above Fonts Point. Note the people in front of the moon (Photo: Sicco Rood).
Waxing gibbous almost full moon above Fonts Point showing the rugged gullies in the foreground with clouds turning blue pink overhead.
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Reposted by Pam Ronald
silver @silverboots.bsky.social · 24/09/2026
This is just to say I have eaten the moon that was in my orbit and which you were probably wanting to study Forgive me it was delicious so crunchy and so cold
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Pam Ronald @pcronald.bsky.social · 24/09/2026
longnow.org/people/caree.... Exciting opportunity
longnow.org
Executive Director
The Long Now Foundation seeks an Executive Director to lead the organization into its next chapter: a thirty-year-old institution being built for the next ten thousand years. We are looking for an amb...
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Pam Ronald @pcronald.bsky.social · 24/09/2026
Your letters to your representatives are working: White House plan to increase control of NIH grants appears ‘dead’ - STAT
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Pam Ronald @pcronald.bsky.social · 19/09/2026
Explore emerging research with field leaders @keystoneSymposia.bsky.social Receptor Kinase Signaling: Fueling Plant Resilience and Development, this May in Vancouver! keysym.us/KSRKSignaling27 #KSRKSignaling27 www.keystonesymposia.org/conferences/...
keysym.us
Receptor Kinase Signaling: Fueling Plant Resilience and Development | Keystone Symposia
Join us at the Keystone Symposia on Receptor Kinase Signaling: Fueling Plant Resilience and Development, May 2027, in Vancouver, with field leaders!
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Pam Ronald @pcronald.bsky.social · 19/09/2026
Join us: Plant and Microbe Engineering for Sustainability Receptor Kinase Signaling: Fueling Plant Resilience and Development. Check out the speaker highlights. B there or B 🔲. www.youtube.com/watch?v=hs-6...
youtube.com
Receptor Kinase Signaling Meeting Promo
YouTube video by KeystoneSymposia
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Pam Ronald @pcronald.bsky.social · 17/09/2026
www.nature.com/articles/d41... Progress is slow but finally CRISPR edited crops are coming to Europe. Still, as this article explains, the rules include arbitrary and artificial constraint on which gene edits are “acceptable”.
nature.com
CRISPR crops are coming to Europe — why bolder would be better
For farmers and consumers to reap the benefits, guidelines for farming gene-edited plants must be implemented with careful thought.
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Pam Ronald @pcronald.bsky.social · 16/09/2026
Good. Restore those cancelled grants
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Reposted by Pam Ronald
Keystone Symposia @keystonesymposia.bsky.social · 16/09/2026
Are you a postdoc or early-career scientist? The Keystone Symposia Fellows Program may be for you. Career development. SAB meetings with leaders in your field. 1:1 mentorship. A community of Fellows committed to each other's growth. Applications close in 2 weeks on Sept. 28.
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Keystone Symposia @keystonesymposia.bsky.social · 17/08/2026
🎓 Applications are now OPEN for the 2027 Fellows Program! Advance your career in science, gain mentorship, peer support and leadership skills. Open to postdocs and early-career scientists. Apply by Sept 28 🔗 hubs.la/Q04s8Tkx0
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Pam Ronald @pcronald.bsky.social · 16/09/2026
protectdemocracy.org/work/researc... “Our study on Alzheimer’s disease was designed to better understand how to identify and reduce the risk of dementia in communities who are at high risk of developing the disease…work that benefits everyone” said Prof Cohen U of Pittsburgh
protectdemocracy.org
Researchers challenge NIH screening of grants for disfavored viewpoints - Protect Democracy
Today, researchers filed a class action lawsuit challenging the National Institutes of Health’s (NIH) policy of blocking grants in order to censor views it disagrees with, on everything from DEI to ge...
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Pam Ronald @pcronald.bsky.social · 03/09/2026
www.nature.com/articles/d41.... If you are eligible, vote this fall for candidates that support the US scientific enterprise
nature.com
Exclusive: NSF set to issue lowest number of new grants in four decades
The US science-funding agency is withholding $1 billion of its budget so that the money can go to a special White House project.
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Pam Ronald @pcronald.bsky.social · 01/09/2026
Good news. Still, the article notes that additional reviews need to be completed by the Environmental Protection Agency before American chestnuts can be distributed to individuals or used for wider restoration projects. However, this recent decision will be immediately beneficial to researchers.
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Reposted by Pam Ronald
Christopher Michel @christophermichel.com · 01/09/2026
Happy 91st birthday to the extraordinary Sylvia Earle. Six decades exploring the ocean, descending into places few humans have ever seen, and fighting like hell for the living planet she loves. What a privilege to make her portrait. More: explorers.com/sylvia-earle @nationalacademies.org
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David Lowry @davidlowry.bsky.social · 31/08/2026
I am currently searching for a postdoc to work on the evolution of adaptations, cold acclimation, and freezing tolerance in switchgrass. The position entails lab, growth facility, bioinformatics, and fieldwork. careers.msu.edu/jobs/postdoc...
careers.msu.edu
Postdoctoral Scholar-Fixed Term - East Lansing, Michigan, United States
Position Summary The Lowry Lab at Michigan State University is searching for a postdoctoral research associate to conduct field and laboratory experiments to understand the causes of genetic variation...
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Pam Ronald @pcronald.bsky.social · 27/08/2026
youtube.com/watch?v=OjbS.... Remember this? So great
youtube.com
Dolly Parton sings and gets COVID vaccine shot
YouTube video by Associated Press
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Pam Ronald @pcronald.bsky.social · 27/08/2026
“We mourn an exceptional artist, a true champion of kindness, and ambassador of science and public health” -Tedros Ghebreyesus, director-general of the World Health Organization www.nature.com/articles/d41...
nature.com
Dolly Parton dies aged 80 — researchers celebrate her contributions to science
The country singer was an advocate for vaccines, public health, literacy and marginalized communities.
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Pam Ronald @pcronald.bsky.social · 27/08/2026
I dont usually post on politics. But this… www.theguardian.com/world/2026/a... Humanists believe we have a duty to lead moral and ethical lives based on science and facts and reason.
theguardian.com
‘A Bible-sized blind spot’: congressman sounds alarm on rising Christian nationalism
In his new book, congressman Jared Huffman argues that theocratic insurgency has only grown more powerful after Donald Trump returned to the White House
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Reposted by Pam Ronald
Innovative Genomics Institute @innovativegenomics.bsky.social · 19/08/2026
Premiering tonight on @pbs.org, Resolve to Solve shares the story of how red seaweed is being used to reduce #methane emissions from cows, featuring IGI's Ermias Kebreab of @ucdavis.bsky.social! Preview here: www.pbs.org/video/cow-bu...
pbs.org
Resolve to Solve with Miles O'Brien | Seaweed Reduces Cow Methane | Episode 1
Cow burps are heating the planet. One dairy farmer’s seaweed fix might cool it down.
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Pam Ronald @pcronald.bsky.social · 20/08/2026
The Plant Cell?
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Pam Ronald @pcronald.bsky.social · 18/08/2026
Yes
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George O'Toole (he/him/his) @geiselbiofilm.bsky.social · 31/07/2026
Pls share. Assistant Professor of Biological Sciences - Genetics/Genomics at Smith College. apply.interfolio.com/190342
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jazzdavid.bsky.social @jazzdavid.bsky.social · 29/07/2026
Not my usual 'cup of tea'. I preface this simply because I found Gina Kolata's article about ovarian cancer worth passing along for 2 reasons. 1st, we—my wife and I—are humans of a certain age. 2nd, the topic of cancer, scares the shit out of almost everyone. FYI. www.nytimes.com/2026/07/28/h...
nytimes.com
There’s a Way to Prevent Ovarian Cancer. Few Know About It. (Gift Article)
The vast majority of cases begin in the fallopian tubes — and removing them can reduce the risk by nearly 80 percent.
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Pam Ronald @pcronald.bsky.social · 20/07/2026
Paredes was not red carded. Enzo Fernández was red carded.
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Pam Ronald @pcronald.bsky.social · 03/07/2026
www.nature.com/articles/d41.... We need talented postdocs to help with peer review but they are BUSY. It makes sense to pay them for their work.
nature.com
Why paying peer reviewers works, according to a journal’s editor-in-chief
A biology journal that paid peer reviewers found that the approach cut the time to a first editorial decision by 85% and maintained high-quality reviews.
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Pam Ronald @pcronald.bsky.social · 29/06/2026
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Pam Ronald @pcronald.bsky.social · 29/06/2026
www.regulations.gov/commenton/OM... Submit your comment here. Read this short piece by lawyer Claudia Polsky to see why science needs you and all your friends and colleagues to write. It’s fast and easy and it will make a difference.
regulations.gov
Regulations.gov
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Pam Ronald @pcronald.bsky.social · 28/06/2026
Some personal news. Introducing our new family member Bea
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Pam Ronald @pcronald.bsky.social · 27/06/2026
Creepy
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Pam Ronald @pcronald.bsky.social · 25/06/2026
What a terrible loss. The magnificent NIH is being torn apart.
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