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Items tagged with: viruses
"Collectively, our data support a model where suppression of quorum-regulated virulence factors by Pf4 allows P. aeruginosa to evade detection by innate host immune responses."
https://journals.plos.org/plospathogens/article?id=10.1371/journal.ppat.1010925
#viruses #virology #symbiosis #phage
Tripartite interactions between filamentous Pf4 bacteriophage, Pseudomonas aeruginosa, and bacterivorous nematodes
Author summary Pseudomonas aeruginosa is an opportunistic bacterial pathogen that infects wounds, lungs, and medical hardware. P. aeruginosa strains are often themselves infected by a filamentous virus (phage) called Pf.journals.plos.org
https://journals.plos.org/plospathogens/article?id=10.1371/journal.ppat.1011145
#virology #viruses
https://journals.asm.org/doi/10.1128/msystems.01260-22
#viruses #giantviruses #marine
Four principles to establish a universal virus taxonomy
Transforming an existing phenotypic classification of viruses into one based on evolutionary relationships that can accommodate the vast number of viruses characterized in metagenomics and environmental studies is an ongoing challenge.plos.io
"we show that adenovirus infection leads to a reduction of the quantity and/or enzymatic activity of the APOBEC3B protein depending on the strains. The A12 strain seems less able to resist APOBEC3B than the B3 or C2 strains, a characteristic which could explain the strong depletion of the APOBEC3-targeted motifs in the A12 genome."
https://journals.plos.org/plospathogens/article?id=10.1371/journal.ppat.1011156
#viruses #virology
The APOBEC3B cytidine deaminase is an adenovirus restriction factor
Author summary The APOBEC3B protein is overexpressed in many human tumors and promotes genetic diversity and resistance to drug and oncolytic viruses.journals.plos.org
Assessing the biogeography of marine giant viruses in four oceanic transects
Viruses of the phylum Nucleocytoviricota are ubiquitous in ocean waters and play important roles in shaping the dynamics of marine ecosystems.bioRxiv
This exciting new research explores the influence of #virus #infection in changing the balance of organic matter degradation between #bacteria and #eukaryotes in #marine #carboncycling during #phytoplankton blooms.
Based on #mesocosm studies, this research demonstrates how #viruses infecting different #microorganisms change community dynamics and the release and potential fate of marine carbon from primary production.
Learn more in this new research in Nature Communications on:
https://www.nature.com/articles/s41467-023-36049-3
#microbiology #ecology #MicrobialEcology
Viral infection switches the balance between bacterial and eukaryotic recyclers of organic matter during coccolithophore blooms - Nature Communications
Algal blooms are hotspots of marine primary production that play central roles in microbial ecology and global elemental cycling.Nature
https://academic.oup.com/ve/advance-article/doi/10.1093/ve/vead008/7008731?rss=1
#viruses #virology
Phylodynamics of deer tick virus in North America
Abstract. The burden of ticks and the pathogens they carry is increasing worldwide. Powassan virus (POWV, Flaviviridae: Flavivirus), the only known North AmericMcMinn, Rebekah J (Oxford University Press)
Viral infection in the ocean—A journey across scales
"Aquatic virology tackles some of the most challenging questions in microbial ecology and oceanography, trying to understand how microorganisms that are invisible to the naked eye can influence large-scale processes, such as biogeochemical cycles, or affect entire marine food webs."
https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.3001966
#viruses #virology #ocean #marine
Viral infection in the ocean—A journey across scales
Viruses are the most abundant biological entity in the ocean. This Essay journeys across several orders of magnitude of biological organization, time, and space, to investigate interactions between hosts and viruses in the ocean and their relevance f…journals.plos.org
This is an important study that shows how #virophage have evolved multiple times independently in distinct viral groups. Turns out that #viruses infecting other viruses are quite common!
Also gotta love the opening sentence: "Eukaryotic genomes are a hub where viruses and selfish genetic elements convene" - so true.
Amazing work by the @BejaLab lab!
https://www.nature.com/articles/s41564-022-01305-7
Isolation and infection cycle of a polinton-like virus virophage in an abundant marine alga - Nature Microbiology
Isolation and characterization of a selfish genetic element with a virophage lifestyle that co-infects a bloom-forming polar algae along with a partner virus.Nature
https://plos.io/3kJcjDY
Viral infection in the ocean—A journey across scales
Viruses are the most abundant biological entity in the ocean. This Essay journeys across several orders of magnitude of biological organization, time, and space, to investigate interactions between hosts and viruses in the ocean and their relevance f…plos.io
https://pubmed.ncbi.nlm.nih.gov/36683075/
#viruses #taxonomy
Abolishment of morphology-based taxa and change to binomial species names: 2022 taxonomy update of the ICTV bacterial viruses subcommittee - PubMed
This article summarises the activities of the Bacterial Viruses Subcommittee of the International Committee on Taxonomy of Viruses for the period of March 2021-March 2022.PubMed
"Israeli-led study claims to uncover 100,000 previously unknown viruses"
https://www.timesofisrael.com/israeli-led-study-uncovers-100000-previously-unknown-viruses/
and the original study: https://www.cell.com/cell/fulltext/S0092-8674(22)01118-7
Congrats again @Neri !
#viruses #virology
Israeli-led study claims to uncover 100,000 previously unknown viruses
Researchers hope groundbreaking findings into RNA pathogens could help develop new kinds of antimicrobial drugs and protect against agriculturally harmful fungi and parasiteswww.timesofisrael.com
"Monir Moniruzzaman Studies the Secrets of Giant Viruses"
https://www.the-scientist.com/scientist-to-watch/monir-moniruzzaman-studies-the-secrets-of-giant-viruses-70865
#viruses #microbiology #marine
Monir Moniruzzaman Studies the Secrets of Giant Viruses
The University of Miami researcher studies how a mysterious group of supersized viruses infects and influences the evolution of their hosts.James M. Gaines (The Scientist Magazine)