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Sarit Avrani @saritavrani.bsky.social · Sep 4

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Reposted by Sarit Avrani

Vardilab @vardilab.bsky.social · Sep 4

📣 We are excited to share our latest paper, led by @taliashaler.bsky.social! We explore the transcriptional basis of #microalgae resistance to #viral_infection and identified a core group of resistance-related genes. >>
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#New_Phytologist #Marine_Biology #Viruses

Mapping the transcriptional landscape of algal resistance to viral infection reveals a core expression program

Algal blooms and their demise by viruses drive global-scale ecological processes in the ocean. These blooms form the foundation of marine food webs, regulate microbial communities, and shape biogeoc...

nph.onlinelibrary.wiley.com

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Reposted by Sarit Avrani

BejaLab @bejalab.bsky.social · Aug 5

Pear flower and leaf microbiome dynamics during the naturally occurring spread of Erwinia amylovora journals.asm.org/doi/full/10....

Pear flower and leaf microbiome dynamics during the naturally occurring spread of Erwinia amylovora | mSphere

The spread of pathogens in plants is an important ecological phenomenon and has a significant economic impact on agriculture. Flowers serve as the entry point for E. amylovora, but members of the flow...

journals.asm.org

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Reposted by Sarit Avrani

STCmicrobeblog @stcmicrobeblog.bsky.social · Jul 28

#PhageSky #ProtistsOnSky

endosymbionts have "their" phages, too. cyanos of sponges (below), 𝘞𝘰𝘭𝘣𝘢𝘤𝘩𝘪𝘢 of insects, and then we have the piñata 👇

schaechter.asmblog.org/schaechter/2...

Putative interactions between the MAnkyphage, two bacterial endosymbionts (M. polyxenophila and G. numerosa), and the cryptomonad host. C. gyropyrenoidosa harbors 4 genomes (in green): nuclear, mitochondrial (MT), nucleomorph (NM), and plastid. Mobile elements are found in the endosymbionts' chromosomes and plasmids, particularly in M. polyxenophila. Only G. numerosa encodes a flagellum, but both endosymbionts have type IV secretion systems (T4SS) and ATP/ADP translocases. The endosymbionts and phage also encode eukaryotic-like protein domains like ankyrin repeats (ANKs) and leucine-rich repeats (LRRs). Other putative eukaryotic interactions include the MAnkyphage-encoded protein (DUF3685) with homology to response regulators in plastids and cyanobacteria. MAnkyphage harbors a type II toxin‑antitoxin system present in M. polyxenophila. The tally of genomes in this single-celled cryptomonad comes to 7 plus 3 bacterial plasmids.
Source: https://pubmed.ncbi.nlm.nih.gov/37116483/

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Sarit Avrani @saritavrani.bsky.social · Jul 28

Our paper on cyanophages of marine sponge symbionts is finally out. It is the outcome of a great collaboration with Laura Steindler's lab and was led by Tzipora Perez.

Cyanophage Infections in a Sponge Intracellular Cyanobacterial Symbiont

Intracellular cyanobacterial symbionts of sponges are shown to be susceptible to cyanophages, challenging assumptions about their isolation from viral exposure. The study reveals novel phage–host int...

enviromicro-journals.onlinelibrary.wiley.com

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Reposted by Sarit Avrani

Asaf Levy @asaflevylab.bsky.social · Jul 26

Expression level of anti-phage defence systems controls a trade-off between protection range and autoimmunity
By Nitzan Aframian and Avigdor Eldar.
www.nature.com/articles/s41...

Expression level of anti-phage defence systems controls a trade-off between protection range and autoimmunity - Nature Microbiology

The authors examine several defense systems and find that increased expression enhances their protection range, albeit at a cost of autoimmunity.

www.nature.com

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Sarit Avrani @saritavrani.bsky.social · Jul 27

So disappointed that it was not real ):

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Reposted by Sarit Avrani

Cyanotrans @cyanotrans.bsky.social · Jul 24

Cyanophage Infections in a Sponge Intracellular Cyanobacterial Symbiont enviromicro-journals.onlinelibrary.wiley.com/doi/10.1111/...

Cyanophage Infections in a Sponge Intracellular Cyanobacterial Symbiont

Intracellular cyanobacterial symbionts of sponges are shown to be susceptible to cyanophages, challenging assumptions about their isolation from viral exposure. The study reveals novel phage–host int...

enviromicro-journals.onlinelibrary.wiley.com

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Reposted by Sarit Avrani

Vardilab @vardilab.bsky.social · Jun 6

📣Excited to share our latest review on using single-cell methods to study host-virus interactions in the ocean - led by Amir Fromm (@amirfromm.bsky.social) and Talia Shaler (x.com/ShalerTalia), in collaboration with Frank Aylward (@foaylward.genomic.social.ap.brid.gy) >>

A single-cell perspective on host–virus dynamics in the ocean

Viral infections of marine microbes greatly impact ecological and biogeochemical processes. Typically, these host–virus interactions are studied at th…

www.sciencedirect.com

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Reposted by Sarit Avrani

Vardilab @vardilab.bsky.social · Jun 5

📣A new preprint by Talia Shaler! 📣
How do populations develop resistance to viral infections?
We mapped the transcriptomic landscape of algal resistance to lytic viral infection and identified a unique set of resistance-related genes expressed in those cells >>
doi.org/10.1101/2025...

Mapping the transcriptional landscape of algal resistance to viral infection reveals a core expression program

### Competing Interest Statement The authors have declared no competing interest. Simons FoundationSimons Foundation, https://ror.org/01cmst727, 150809

doi.org

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Sarit Avrani @saritavrani.bsky.social · Jul 2

We are looking for talented and curious students. If you are interested in joining, please contact me.

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Reposted by Sarit Avrani

Siân Owen @sianowen.bsky.social · May 28

Phage DisCo! Our targeted phage discovery method in press today: journals.asm.org/doi/10.1128/...

Perfectly timed with our four summer undergrad's first successful phage hunt... disco lights in the lab to mark the occasion 🕺

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Reposted by Sarit Avrani

BejaLab @bejalab.bsky.social · May 29

I am happy to introduce to you our new paper on pelagic #Asgard archaea that use #rhodopsins with carotenoid antennas to harvest light energy in the oceans.
Structural insights into light-harvesting by antenna-containing rhodopsins in marine Asgard archaea www.nature.com/articles/s41...

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Reposted by Sarit Avrani

Elaine Luo @oceanmicrobes.bsky.social · May 28

Lab's first preprint! #newPI

We show that viruses are active agents that recycle carbon fixed by productive chemoautotrophs, shaping our understanding of carbon cycling in redox-active ecosystems.

www.biorxiv.org/content/10.1...

@julesdeep.bsky.social @gtrubl.bsky.social @mepjoe.bsky.social

Virus-mediated recycling of chemoautotrophic biomass

Aquatic environments absorb ~2.5 gigatonnes of atmospheric carbon each year, more than the carbon stored in the atmosphere, soils, and all biomass combined. Primary producers transform this dissolved ...

www.biorxiv.org

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Sarit Avrani @saritavrani.bsky.social · Apr 17

Congrats Branko 🥳🥳🥳

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Reposted by Sarit Avrani

Jay T Lennon @jaytlennon.bsky.social · Feb 27

Congratulations to @emmiamueller.bsky.social on:

"Residence time structures microbial communities through niche partitioning"

Now out in Ecology Letters:

onlinelibrary.wiley.com/doi/10.1111/...

Residence Time Structures Microbial Communities Through Niche Partitioning

Much of life on earth is at the mercy of currents and flow. Residence time (τ) estimates how long organisms and resources remain in a system based on the ratio of volume (V) to flow rate (Q). We test...

onlinelibrary.wiley.com

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Reposted by Sarit Avrani

Cyanotrans @cyanotrans.bsky.social · Feb 25

Lysogen formation governs colonies while lytic infection is more prevalent in single cells of the bloom-forming cyanobacterium, Microcystis www.biorxiv.org/content/10.1...

www.biorxiv.org

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Reposted by Sarit Avrani

Santiago Elena @sfelena.bsky.social · Feb 20

Experimental evolution of evolvability | Science www.science.org/doi/10.1126/...

Experimental evolution of evolvability

Evolvability—the capacity to generate adaptive variation—is a trait that can itself evolve through natural selection. However, the idea that mutation can become biased toward adaptive outcomes remains...

www.science.org

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Reposted by Sarit Avrani

Asaf Levy @asaflevylab.bsky.social · Dec 30

We wrote a new review paper in @cp-trendsmicrobiol.bsky.social on recently developed bioinformatic tools that facilitate elucidating protein functions in the era of big genomics data.
www.sciencedirect.com/science/arti...
This is the 1st paper of 2 talented students Shani Cheskis and Avital Akerman.

Deciphering bacterial protein functions with innovative computational methods

Bacteria colonize every niche on Earth and play key roles in many environmental and host-associated processes. The sequencing revolution revealed the …

www.sciencedirect.com

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Sarit Avrani @saritavrani.bsky.social · Jan 29

Harmit Singh Malik @harmitmalik.bsky.social · Jan 28

If you have been affected by the fires in LA, or are concerned about your ability to keep precious Drosophila strains going during the latest funding crisis, we will host your strains as a backup. Please email me.

Please amplify. If you are also able to host fly strains, add your name as well.

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Sarit Avrani @saritavrani.bsky.social · Jan 25

Can you add me? Thanks

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Reposted by Sarit Avrani

Michael Baym @baym.lol · Jan 17

This paper has been a long time coming: We looked at the genomes of historical bacterial samples over a century to look for trends of antibiotic resistance genes, finding multiple instances of them in infections before the age of antibiotics, but an increase in both frequency and mobility after

bioRxiv Microbiology @biorxiv-microbiol.bsky.social · Jan 17

Genomic resistance in historical clinical isolates increased in frequency and mobility after the age of antibiotics https://www.biorxiv.org/content/10.1101/2025.01.16.633422v1

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Sarit Avrani @saritavrani.bsky.social · Jan 19

Very exciting 😀

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Reposted by Sarit Avrani

avw12-banyuls.bsky.social @avw12-banyuls.bsky.social · Jan 15

The AVW12 committee wishes you a Happy New Year 2025! A quick reminder that the deadline for abstract submission is 15 February: avw12.sciencesconf.org. Spread the word with your network!

12th Aquatic Virus Workshop (AVW12) - Sciencesconf.org

avw12.sciencesconf.org

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Reposted by Sarit Avrani

Ákos T Kovács @evolvedbiofilm.bsky.social · Jan 13

Happy to see this multi country collaboration published in @cp-cellreports.bsky.social led by Polonca and Anna

Ecology of prophage-like elements in Bacillus subtilis at global and local geographical scales
www.cell.com/cell-reports...

#Phage #Bacillussubtilis

#MicrobiomeEcology at #LeidenBiology

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