How phages work:
Source: VIRUS, 2016
Dr Marilyn J Roossinck
Foreword by Carl Zimmer
101 INCREDIBLE MICROBES FROM CORONAVIRUS TO ZIKA
How phages work:
Source: VIRUS, 2016
Dr Marilyn J Roossinck
Foreword by Carl Zimmer
101 INCREDIBLE MICROBES FROM CORONAVIRUS TO ZIKA
Coinfecting #viruses obstruct each other's cell invasion https://phys.org/news/2024-08-coinfecting-viruses-obstruct-cell-invasion.html Paper: https://www.cell.com/current-biology/abstract/S0960-9822(24)00675-4
When there were more #phages attached to the surface of the cell, relatively fewer of them were able to enter... the first stage of infection, #phage entry, is an important step that was previously underappreciated... the coinfecting phages were impeding each other's entry by perturbing the #electrophysiology of the cell.
This was used in studies of how DNA moves between bacteria, and between bacteria and phage (bacterial virus)
so you would mix say bacteria and phage, and then SHAKE them hard to break up the mating, so you could see how many seconds it took to move DNA from phage to bacteria (obviously a simplified account, and from memory !!)
Passionate about phages? Apply by July 31 to join Jens Hör’s research group as a doctoral researcher! In #HIRI’s Hör lab, you will study how bacteria defend themselves against #RNA #phage infection and decipher the molecular mechanisms of this defense. More at: https://www.helmholtz-hiri.de/en/jobs-talents/working-at-hiri/
Filamentous Phage Shields https://schaechter.asmblog.org/schaechter/2024/03/filamentous-phage-shields.html @STCmicrobeblog
Phage liquid crystalline droplets form occlusive sheaths that encapsulate and protect infectious rod-shaped #bacteria (2020) https://www.pnas.org/doi/full/10.1073/pnas.1917726117
"in #biofilms and due to the presence of #ExtracellularMatrix #polymers, Pf4 #phage particles form highly ordered yet dynamic #LiquidCrystals (tactoids) that surround the cells. Quite interestingly, these #tactoids confer on the cells an increased tolerance to #antibiotics."
Just came across this helpful figure on the milestones of #phage research and #phagetherapy from a recent @PLOSBiology Essay, which is a highly recommended (and easy to read) deep dive into the topic
#LoveVirology
#Phages are key drivers of #MicrobialEvolution, but many #phage genes are poorly understood. @denish_piya @AdamArkinLab @vivek_mutalik &co use arrayed genome-wide #CRISPRi to map gene the essentiality landscape in the iconic coliphages λ & P1. #PLOSBiology https://plos.io/3uLtzgU
Interactions between #bacteriophage & mammalian hosts can facilitate diverse symbioses; @marion_bichet @JeremyJBarr &co show that mammalian cells internalize #phage, using them as a resource to enhance cellular growth & proliferation #PLOSBiology https://plos.io/49bc4Gu
A virus found far down in the Mariana Trench:
"Identification and genomic analysis of temperate Halomonas bacteriophage vB_HmeY_H4907 from the surface sediment of the Mariana Trench at a depth of 8,900 m", Su et al. 2023 https://pubmed.ncbi.nlm.nih.gov/37728551/
No corner of this planet without viruses – unsurprisingly.
Organisms use a range of defense systems against #parasites. Using a #bacteria-#phage model system, @drbridgetwatson @edzewestra &co ask what drives the transient evolution of different systems; implications for #HostEcology & #pathogenicity #PLOSBiology https://plos.io/3LoFSoM
We are hiring project scientists, Postdocs and research associates in multiple labs. Please reach out if you are looking for exciting #phage #microbiology #synbio #CRISPR #AMR #evolution #ecology Systems biology & infectious disease biology work.
Something I've been wondering - does anyone have conference &/ meeting recommendation for early career researchers in microbiology/phage genomics?
It's time to think posters again. #microbiology #bioinformatics #phage
Check out episode #2 of Mark Martin’s “Matters Microbial” podcast on microbe tv featuring examples of shock-and-awe microbiology for grabbing students’ attention and an interview with me :)
#USFCMS #microbiology #micro #virology #phage #virus
https://youtu.be/GOWEANUgzpw
My good friend and colleague Mark Martin just started a new #microbiology #podcast. If you’re microbe-curious, check it out, you’ll get hooked! First episode features an interview with Vincent Racaniello - and although that’s a tough act to follow, tune in to next week’s podcast where I was lucky enough to be a guest. #science #micro #virology #phage
https://www.microbe.tv/mm/mm-001/
A phabulous plush phage gift from my friend Mark Martin #phage #bacteriophage #science #microbiology Check out those adorable phangs!
ASM is now taking session proposals for the 2024 Microbe meeting in Atlanta, Georgia
#ASM #Microbiology #MicrobialEvolution #MicrobialEcology #Phage #Phages #Bacteria
https://asm.org/Events/ASM-Microbe/Session-Proposals?_zs=eKArl&_zl=bePd2
More #phage curiosities - two closely related phages likely have their #integrase at a particular location (based on clustering, alignment of related, better studied phages and hmm screening) - but they're split into a couple of pieces.
Are there examples of split/mulit-part integrase still functioning in nature? Or are we looking at #sequencing (illumina shorts) error? Hmm.
Going through rotated and re-annotated phage genomes. It looks like the hypervariable region we're interested in is remarkably well conserved, and drags around some interesting accessory genes during shuffling.
I can't wait for the wet lab test.
#microbiology #phage
Happy to say I defended my dissertation "Methods and complexity in phage-bacteria ecology and evolution"!
Much thanks to all those who supported me throughout my PhD.
I'm glad to be sticking around the Turner Lab for another year as a post-doc to continue my work on multispecies phage-bacteria communities