Adaptation without Dominance in Pseudomonas syringae Pathovars - Microbial Ecology
Understanding local adaptation of phytopathogens has significant practical and economic implications. The opportunistic pathogen Pseudomonas syringae exemplifies this challenge, causing regular epidem...
My PhD work with the inimitable Joy Bergelson looking at local adaptation in a super-cool generalist pathogen that nucleates ice and decimates your favorite crop plant ๐ฑ ๐พ ๐งฌ Thrilled to see this out (& reminded by @vscooper.micropopbio.org to celebrate each win)!
link.springer.com/article/10.1...
18.02.2026 16:47 โ ๐ 17 ๐ 10 ๐ฌ 1 ๐ 0
My quote of the day
Ignorance more frequently begets confidence than does knowledge: it is those who know little, and not those who know much, who so positively assert that this or that problem will never be solved by science.
Charles Darwin
12.02.2026 11:33 โ ๐ 84 ๐ 34 ๐ฌ 3 ๐ 1
This sounds like one of those days where putting on some music and committing to a deep clean seems oddly appealing ๐
07.02.2026 13:15 โ ๐ 0 ๐ 0 ๐ฌ 1 ๐ 0
Aeromonas adhesins facilitate kin and non-kin attachment to enable T6SS-mediated antagonism in liquid
Bacterial ability to deploy the type VI secretion system (T6SS) against rivals requires prolonged cell-cell interactions. Such interactions are facilitated on solid surfaces but are assumed to be absent in liquid, leading to the conventional dismissal of T6SS-mediated competition in liquid environments. Here, we find that Aeromonas jandaei employs its T6SS to eliminate diverse bacterial competitors in liquid media. Using a workflow that monitors interbacterial competition via prey luminescence, we demonstrate that auto-aggregation and co-aggregation, facilitated by distinct adhesins, enable kin and non-kin recognition and intoxication in a T6SS-dependent manner. Furthermore, we show that another marine bacterium, Vibrio coralliilyticus , employs T6SS to intoxicate rivals in liquid media. Collectively, our results indicate that T6SS-mediated competition in liquid is more common in marine bacteria than previously anticipated, and can be facilitated by diverse molecular mechanisms that govern cell aggregation. ### Competing Interest Statement The authors have declared no competing interest. Israel Science Foundation, https://ror.org/04sazxf24, 1362/21, 2174/22 Swiss National Science Foundation, 51NF40_180541
It is widely accepted that #T6SS -mediated intoxication occurs only on solid surfaces, where prolonged cell-cell interactions are forced, and not in liquid environments. But is this generalization true? Our new preprint says it isn't. A ๐งต ...
biorxiv.org/content/10.6...
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28.01.2026 12:36 โ ๐ 28 ๐ 13 ๐ฌ 3 ๐ 0
๐คฃ๐คฃ๐คฃ
02.02.2026 06:07 โ ๐ 0 ๐ 0 ๐ฌ 0 ๐ 0
An Open Letter to Graduating PhDs in a Post-Federal Science World
July 15, 2025
Not exactly advice I give, but I believe this period is shaping the next gen of scientific leaders with unique skillsets. I wrote a bit about it here: uncultured.carinilab.com/p/an-open-le...
19.01.2026 01:57 โ ๐ 9 ๐ 6 ๐ฌ 0 ๐ 2
Marco Rubio is reportedly saying Maduro will stand trial in US courts.
Which means itโs now the US administrationโs position that US courts can hold foreign presidents, but not the US president, accountable for crimes.
03.01.2026 10:52 โ ๐ 59801 ๐ 20305 ๐ฌ 1563 ๐ 1138
This year I skipped the stressful holiday visit with toxic family members and opted for doing child-safe science experiments with my best friendโs young children (under 5 years old). 10/10 highly recommend! Why are we not all making baking soda โvolcanoesโ all the time
29.12.2025 22:23 โ ๐ 2 ๐ 0 ๐ฌ 0 ๐ 0
CATS: Canine Airport Therapy Squad
Bioinformatics is in shambles at the Denver airportโs acronym game
01.12.2025 22:18 โ ๐ 27 ๐ 5 ๐ฌ 2 ๐ 1
Canโt believe the whole country has to suffer through the return of Dickensian childhood diseases because the worst, most ignorant attention-demanders decided other peopleโs expertise makes them feel bad
20.11.2025 04:19 โ ๐ 26526 ๐ 6631 ๐ฌ 7 ๐ 217
OK, #bioinformatics folk. We have some (many many) reads from a metagenome. They have been binned into a bacterial genome. They have no matches to any known genome in any database. They code for "bacterial" genes. What are good triple-checks to do to argue that they are not, in fact, euk sequence?
18.11.2025 17:29 โ ๐ 18 ๐ 10 ๐ฌ 8 ๐ 0
Epstein-Barr virus reprograms autoreactive B cells as antigen-presenting cells in systemic lupus erythematosus
Epstein-Barr virus reprograms autoreactive B cells as antigen-presenting cells to promote pathogenic antinuclear T and B cell responses in lupus.
A new study provides evidence of a biological mechanism for how Epstein-Barr Virus (EBV) may trigger lupus.
EBV seems to reprogram B-cells at the beginning of a cascade that ultimately results in autoimmunity.
The authors mention that EBV is a cause of MS, and may be related to LongCOVID.
13.11.2025 01:45 โ ๐ 309 ๐ 102 ๐ฌ 17 ๐ 4
Excited to share some new work led by grad student Sophie Walton (w/ @petrovadmitri.bsky.social). We used in vitro gut communities to study how natural selection acts on strains of the same species as they compete within larger communities. Check out Sophie's thread below for details!
12.11.2025 03:43 โ ๐ 28 ๐ 13 ๐ฌ 0 ๐ 1
Arizona rep sits at a plain fold-up table outside of Mike Johnson's office. The Speaker of the House official plaque is behind her. Her sign says "Mike Johnson is starving families and gutting healthcare to cover up the Epstein Files: Change My Mind!"
Probably the most badass thing I've ever seen!
AZ Rep Yassamin Ansari has set up a table outside of Mike Johnsonโs offical Speaker Of The House office with a "Mike Johnson is using the government shutdown to cover up the Epstein Files - Change My Mind" sign!! ๐
07.11.2025 02:27 โ ๐ 678 ๐ 131 ๐ฌ 16 ๐ 8
Waning immunity drives respiratory virus evolution and reinfection
Abstract. Viruses differ in the number and types of host tissues in which they replicate. For example, systemically replicating viruses such as measles inf
Today on Club EvMed we enjoyed a super discussion with the authors of this important paper. Join us next time or enjoy the recording!
"Waning immunity drives respiratory virus evolution and reinfection" by Antia, Koelle & Bull
Club EvMed: sites.duke.edu/clubevmed/
academic.oup.com/emph/article...
30.10.2025 17:02 โ ๐ 5 ๐ 4 ๐ฌ 0 ๐ 1
Good evening from the Arctic!
29.10.2025 18:44 โ ๐ 27 ๐ 2 ๐ฌ 0 ๐ 0
Thatโs absolutely beautiful
28.10.2025 20:48 โ ๐ 8 ๐ 1 ๐ฌ 0 ๐ 0
Two PROTAC questions:
1) Does anyone know of a PROTAC for GFP (which could be used to degrade any GFP-tagged protein)?
2) Does anyone have experience with any of the available PROTACs for Halo (like HaloPROTAC3)?
28.10.2025 15:54 โ ๐ 0 ๐ 2 ๐ฌ 2 ๐ 0
Behold my seasonal culinary skills (and my ๐โโฌ who wants to share): monster mouths, ghostly bananas, and mummy pigs-in-a-blanket ๐
26.10.2025 21:34 โ ๐ 2 ๐ 0 ๐ฌ 0 ๐ 0
Applied Biostatistics
Hey Yaniv Brandvain is not on Bluesky but his most recent biostats ebook is live ybrandvain.github.io/biostats/. His stats resources have been so helpful to me as I develop my own stats course, so check it out. Github repo here: github.com/ybrandvain/b...
24.10.2025 14:47 โ ๐ 86 ๐ 51 ๐ฌ 3 ๐ 3
Free, professional illustrations of research organisms! ๐จ๐๐ชผ๐งช
We compiled original vector/raster graphics of 70+ organisms & viruses into a CC0 library. All by @arcadiascience.com's Audrey Bell
Check it out & show us how you use them!
research.arcadiascience.com/pub/resource... #SciArt #OpenScience
29.09.2025 18:45 โ ๐ 17 ๐ 8 ๐ฌ 0 ๐ 0
We're excited to be recruiting an NIH funded postdoc to work in the Coop lab at UC Davis. We're specifically interested in candidates who are want to work at the intersection of human genetics, GWAS, and population genetics modeling. Please RT
15.10.2025 15:53 โ ๐ 162 ๐ 210 ๐ฌ 1 ๐ 5
Did you know that it only takes one spontaneous mutation in your bacterial culture to activate a phage, and trigger a subsequent cascade of bacterial/phage evolution? ๐งช Curious how you could detect similar events in your experiments? Check out Nanamiโs work!
02.04.2025 16:58 โ ๐ 9 ๐ 4 ๐ฌ 0 ๐ 0
1/3 To those interested in microbial iron & metal transport: In 1992, the late JB Neilands (UCB), the pioneer in the study of Fe transport entrusted me with his collection of purified siderophores from a wide range of microbesโmany of them unique chemical species that can no longer be reproduced
14.10.2025 14:54 โ ๐ 6 ๐ 11 ๐ฌ 3 ๐ 0
Lenski and Travisano with LTEE lines in incubator.
Ofria and Travisano, who is holding metal tray containing LTEE populations in their flasks.
Mike Travisano back at MSU to give EEB Distinguished Alumni Lecture on "The major consequences of micro-evolution"
Mike a key player in establishing #LTEE and microbial expt'l evolution more generally. Here we are with LTEE lines in the incubator & Mike holding y'day flasks w/ @ofria.bsky.social
09.10.2025 17:33 โ ๐ 31 ๐ 4 ๐ฌ 1 ๐ 0
Weigel Lab aka WeigelWorld Repostโ endorsement
#OpenScience
COIs http://tinyurl.com/DWCOI2022 GoogleScholar http://tinyurl.com/DeWeScholar
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associate professor, dept. of evolution, ecology, & behavior, UIUC. computational biologist and population genomics practitioner.
Microbiologist, trying to understand intrastrain population dynamics, mental health advocate,
Asst prof @GSU
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I bet on myself and double down
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Migrating on my own path. Cytoskeletal enthusiast with a love for mechanics, development, and biophysical approaches. | BWF CASI Fellow with Orion Weiner at UCSF | PhD Gardel lab at UChicago | HHMI Gilliam, Ford Predoctoral Fellow Alum |
Focused on innate immune mechanisms governing pathogenesis of disease and on NK-cell based therapies for disease. Opinions expressed are Dr. Waggoner's alone and not on behalf of lab staff or employer.
Writing a book about horizontal gene transfer and non treelike evolution. Bioinformatics, Evolutionary Biology. Pangenomes. Chair in Evolutionary Biology. ๐ฎ๐ช http://github.com/mol-evol/panGPT
Husband and father. 40th Governor of California. Former Lt. Governor of California. Former San Francisco Mayor. Personal account.
Virus spread and evolution + connection to behavior.
@Scripps Research, CA.
Associate Professor of Bioengineering, Berkeley. Living in an RNA world. lareaulab.org
Investigative health journalist for @theguardian.com and more.
MS Epidemiology student at Northwestern University.
ex-marketplace, ex-spotify.
chicago now ๐ญ missing LA ๐ต
#ADHD ๐ต๐ญ๐๐ณ๏ธโ๐
Social welfare scholar. Areas include medication adherence for folks living with HIV, homelessness, mass incarceration, communicable disease prevention, and social service provision. All opinions are my own. Academic ronin. #Appomattoxwasanarmistice
Associate prof. at UCLA
https://garud.eeb.ucla.edu
Computational biologist, data scientist, digital artist | he, him | http://clauswilke.com/ | Opinions are my own and do not represent UT Austin.
Federation of European Microbiological Societies | https://femsmicro.start.page | Magnifying microbial impact | Follow the not-for-profit FEMS Journals: @femsjournals.bsky.social | #FEMSJournals | #microbiology
The One Health Microbiome Center at Penn State University optimizes, accelerates, and disseminates long-lasting applications and knowledge on the microbiome. X: @psumbiome microbiome.psu.edu
Assistant prof at University of Rochester engineering genetic communication in microbial populations. Mountain enthusiast, passionate teacher