Sarit Avrani

🥳

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...

📣 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

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...

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

#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...

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...

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.

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.

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...

So disappointed that it was not real ):

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...

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

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…

📣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) >>

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

📣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...

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

Disco lights

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 🕺

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...

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 ...

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

Congrats Branko 🥳🥳🥳

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...

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/...

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...

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...

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

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 …

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.

Can you add me? Thanks

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

Very exciting 😀

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!

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

את לגמרי צודקת ברמה העקרונית. אבל יש שם ממש קהילה סביב בית הספר, וגם סטודנטים לרפואה תמיד היו שם ובטוח אין להם כסף לשכור את הדירות החדשות שבונים שם.. עניין הרכבת כן מרגיש רלוונטי.

Cold Surface Waters of the Sub‐Antarctic Pacific Ocean Support High Cyanophage Abundances and Infection Levels Here, we investigated the abundance of cyanophages and the extent to which they infect Synechococcus and Prochlorococcus, important primary producers, in the cold, low-light, iron-limited, sub-Antarc...

Cold Surface Waters of the Sub-Antarctic Pacific Ocean Support High Cyanophage Abundances and Infection Levels enviromicro-journals.onlinelibrary.wiley.com/doi/10.1111/... @biologytechnion.bsky.social

לדעתי זה תלוי בשלב בחיים. דווקא מכירה כאלו שעברו בגלל הים והבי"ס האנטרופוסופי. אפילו מישהו שהיה איתנו בכיתה....

Thanks!

Protection Against Viruses – The Passive Version - Technion - Israel Institute of Technology As humans, we often focus on viruses and bacteria because of their role in causing various, sometimes severe, diseases. However, an equally fascinating but lesser-known phenomenon is the ongoing battl...

Protection Against Viruses – The Passive Version. www.technion.ac.il/en/2025/01/p...