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Posts by Ethel Bayer Santos

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A Secret Weapon from Salmonella Could Help Us Maintain Healthier Microbiomes The discovery could also lend itself to the development of future antibacterial therapies.

The Bayer-Santos Lab, along with researchers at the University of São Paulo, have discovered salmonella toxins that could lead to healthier microbiomes and new targetted antibacterial therapies. See: cns.utexas.edu/news/researc...

1 month ago 10 7 0 0
Top: Diagram showing Type VI Secretion System–mediated interbacterial antagonism integrated with a computational pipeline used to identify and classify previously uncharacterized antibacterial effector families. Created in BioRender. Bayer-Santos, E. (2026). Bottom left: E. coli toxicity assay. Serial dilutions of E. coli carrying pBRA and pEXT22 constructs. Bottom right: Time-lapse microscopy of E. coli carrying pBRA SP-Tox-Act1 grown on repressed or induced conditions. Scale bar: 5 µm. Timestamps in hours and minutes.

Top: Diagram showing Type VI Secretion System–mediated interbacterial antagonism integrated with a computational pipeline used to identify and classify previously uncharacterized antibacterial effector families. Created in BioRender. Bayer-Santos, E. (2026). Bottom left: E. coli toxicity assay. Serial dilutions of E. coli carrying pBRA and pEXT22 constructs. Bottom right: Time-lapse microscopy of E. coli carrying pBRA SP-Tox-Act1 grown on repressed or induced conditions. Scale bar: 5 µm. Timestamps in hours and minutes.

During microbial warfare, #bacteria deploy toxins to inhibit or kill competitors. @ebayersantos.bsky.social &co reveal lipid-targeting #antibacterial #toxins & novel toxin domains within #Salmonella T6SS effectors, broadening known toxin enzymatic diversity @plosbiology.org 🧪 plos.io/40zTyEP

1 month ago 18 9 1 1
Top: Diagram showing Type VI Secretion System–mediated interbacterial antagonism integrated with a computational pipeline used to identify and classify previously uncharacterized antibacterial effector families. Created in BioRender. Bayer-Santos, E. (2026). Bottom left: E. coli toxicity assay. Serial dilutions of E. coli carrying pBRA and pEXT22 constructs. Bottom right: Time-lapse microscopy of E. coli carrying pBRA SP-Tox-Act1 grown on repressed or induced conditions. Scale bar: 5 µm. Timestamps in hours and minutes.

Top: Diagram showing Type VI Secretion System–mediated interbacterial antagonism integrated with a computational pipeline used to identify and classify previously uncharacterized antibacterial effector families. Created in BioRender. Bayer-Santos, E. (2026). Bottom left: E. coli toxicity assay. Serial dilutions of E. coli carrying pBRA and pEXT22 constructs. Bottom right: Time-lapse microscopy of E. coli carrying pBRA SP-Tox-Act1 grown on repressed or induced conditions. Scale bar: 5 µm. Timestamps in hours and minutes.

During microbial warfare, #bacteria deploy toxins to inhibit or kill competitors. @ebayersantos.bsky.social &co reveal lipid-targeting #antibacterial #toxins & novel toxin domains within #Salmonella T6SS effectors, broadening known toxin enzymatic diversity @plosbiology.org 🧪 plos.io/40zTyEP

1 month ago 7 5 0 0
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Always great to catch up with old friends @uspoficial.bsky.social

5 months ago 1 0 0 0

Go Z! 🚀💪🏻

5 months ago 2 0 0 0

Applications closing tonight (midnight French time) !!!
Still a few hours to apply !!

5 months ago 1 6 0 0
he Department of Plant Pathology at the University of California, Davis is seeking applications for a fulltime, tenure-track Assistant Professor position in Mycology, with a focus on plant pathogenic, symbiotic, 
or mycotoxigenic fungi and fungal-like organisms (e.g., oomycetes). We are looking for a highly 
motivated and creative scientist with a strong background in mycology and/or the biology of fungi and 
fungal-like organisms that interact with plants. The successful candidate will be expected to develop a 
world-class, externally funded research program that integrates both fundamental and applied aspects 
of fungal biology within the context of plant pathology. We welcome applicants pursuing a wide range 
of research topics related to plant-associated fungi, including but not limited to mechanisms of fungal 
pathogenesis or symbiosis with plants, population genomics and evolution of fungal plant pathogens, 
plant-associated fungal microbiomes and plant-microbe interactions, and/or one health approaches to 
fungal diseases and antifungal resistance. Applicants working in other relevant research areas involving 
pathogenic, symbiotic, or mycotoxigenic fungi or fungal-like organisms that affect plant health are also 
encouraged to apply. The successful candidate will have significant opportunities for collaboration with 
faculty in plant pathology, microbiology, genomics, and agricultural sciences, and to contribute to 
addressing issues of importance to California’s agricultural and natural ecosystems.
The appointee primary teaching responsibilities will be teaching Introductory Mycology, an upperdivision lab class, and SAS 30, Mushroom, Molds & Society, a general education class for non-majors. 
Additional graduate and undergraduate teaching responsibilities may be assigned based on 
departmental needs and the candidate’s expertise. The department offers modern instructional 
facilities, including a newly renovated teaching laboratory.

he Department of Plant Pathology at the University of California, Davis is seeking applications for a fulltime, tenure-track Assistant Professor position in Mycology, with a focus on plant pathogenic, symbiotic, or mycotoxigenic fungi and fungal-like organisms (e.g., oomycetes). We are looking for a highly motivated and creative scientist with a strong background in mycology and/or the biology of fungi and fungal-like organisms that interact with plants. The successful candidate will be expected to develop a world-class, externally funded research program that integrates both fundamental and applied aspects of fungal biology within the context of plant pathology. We welcome applicants pursuing a wide range of research topics related to plant-associated fungi, including but not limited to mechanisms of fungal pathogenesis or symbiosis with plants, population genomics and evolution of fungal plant pathogens, plant-associated fungal microbiomes and plant-microbe interactions, and/or one health approaches to fungal diseases and antifungal resistance. Applicants working in other relevant research areas involving pathogenic, symbiotic, or mycotoxigenic fungi or fungal-like organisms that affect plant health are also encouraged to apply. The successful candidate will have significant opportunities for collaboration with faculty in plant pathology, microbiology, genomics, and agricultural sciences, and to contribute to addressing issues of importance to California’s agricultural and natural ecosystems. The appointee primary teaching responsibilities will be teaching Introductory Mycology, an upperdivision lab class, and SAS 30, Mushroom, Molds & Society, a general education class for non-majors. Additional graduate and undergraduate teaching responsibilities may be assigned based on departmental needs and the candidate’s expertise. The department offers modern instructional facilities, including a newly renovated teaching laboratory.

Please repost -- The Univ. California Davis dept of Plant Pathology is hiring a Fungal biologist / Mycologist

Applications due Dec 1

Application portal: recruit.ucdavis.edu/JPF07339

Screenshot shows part of the job posting (with alt-text of the same text)

6 months ago 57 101 2 1
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Come be my boss! We’re looking for a passionate and supportive leader for our Department of Molecular Microbiology and Immunology. Research in MMI spans diverse models and systems of host-pathogen interactions. Come join us in the beautiful Pacific NW!

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7 months ago 32 23 2 1

We are hiring! The Dept of Microbiology and Molecular Genetics is looking for faculty at the Assistant or Associate professor level (tenure track). Please consider joining our vibrant microbiology and immunology community at the University of Pittsburgh School of medicine

8 months ago 105 106 1 4

Amazing!

11 months ago 1 0 0 0
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My lab and Chuck Farah's at the University of São Paulo (USP) are seeking a postdoc to join an exciting project focused on applying structural biology to novel and unexplored targets in antibiotic discovery.

1 year ago 14 12 1 0
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Meet my new Texan buddies

1 year ago 3 0 0 0
Research Associate Genetic and functional analysis of Gram positive secretion systems and substrates Research Associate Genetic and functional analysis of Gram positive secretion systems and substrates

Two ERC-funded postdoc positions available in the team - one here and second to follow - please repost! jobs.ncl.ac.uk/job/Newcastl...

1 year ago 31 69 1 2

Don't miss the deadline (1st April) for registering to the New Microbiology Lecture Course in Spetses

1 year ago 13 18 0 0
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Overseas universities see opportunity in U.S. ‘brain drain’ But many U.S.-based scientists seeking to leave may struggle to find positions in countries grappling with funding issues of their own

"Universities around the world have reported seeing an uptick in applications from U.S.-based researchers, who face an increasingly uncertain climate under President Donald Trump’s administration." ➡️ www.science.org/content/arti...

1 year ago 10 13 0 1
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Austin TX. #standupforscience

1 year ago 296 48 1 0

Wishing you all a great 2025 full of science! 😄

1 year ago 8 0 0 0