Continuous year-round isolation of giant viruses from brackish shoreline soils [PDF]
Frontiers in MicrobiologyGiant viruses, categorized under Nucleocytoviricota, are believed to exist ubiquitously in natural environments. However, comprehensive reports on isolated giant viruses remain scarce, with limited information available on unrecoverable strains, viral ...
Motohiro Akashi +2 more
doaj +5 more sources
Epidemiology and ecology of the sylvatic cycle of African Swine Fever Virus in Kenya [PDF]
Virus ResearchAfrican Swine Fever (ASF) is caused by a DNA virus (AFSV) maintained and transmitted by the Argasid ticks. The re-emergence of the disease in Africa coupled with its rapid spread globally is a threat to the pig industry, food security and livelihoods ...
Vincent Obanda +16 more
doaj +5 more sources
Evolution of giant pandoravirus revealed by CRISPR/Cas9 [PDF]
Nature Communications, 2023 Giant viruses (GVs) are a hotspot of unresolved controversies since their discovery, including the definition of “Virus” and their origin. While increasing knowledge of genome diversity has accumulated, GV functional genomics was largely neglected. Here,
Hugo Bisio +6 more
doaj +2 more sources
An Update on Eukaryotic Viruses Revived from Ancient Permafrost [PDF]
Viruses, 2023 One quarter of the Northern hemisphere is underlain by permanently frozen ground, referred to as permafrost. Due to climate warming, irreversibly thawing permafrost is releasing organic matter frozen for up to a million years, most of which decomposes ...
Jean-Marie Alempic +11 more
doaj +2 more sources
Kinetic Analysis of Acanthamoeba castellanii Infected with Giant Viruses Quantitatively Revealed Process of Morphological and Behavioral Changes in Host Cells [PDF]
Microbiology Spectrum, 2021 Most virus-infected cells show morphological and behavioral changes, which are called cytopathic effects. Acanthamoeba castellanii, an abundant, free-living protozoan, serves as a laboratory host for some viruses of the phylum Nucleocytoviricota—the ...
Sho Fukaya, Masaharu Takemura
doaj +2 more sources
Pandoravirus Celtis Illustrates the Microevolution Processes at Work in the Giant Pandoraviridae Genomes [PDF]
Frontiers in Microbiology, 2019 With genomes of up to 2.7 Mb propagated in μm-long oblong particles and initially predicted to encode more than 2000 proteins, members of the Pandoraviridae family display the most extreme features of the known viral world.
Matthieu Legendre +10 more
doaj +6 more sources
Exploring the Virome of Nile Tilapia (Oreochromis niloticus) Using Metagenomic Analysis [PDF]
PathogensNile tilapia (Oreochromis niloticus) is an indispensable source of high-quality protein worldwide. Along with the exponential expansion of tilapia aquaculture, several novel pathogenic viruses have emerged, and some cause significant economic losses ...
Amira Ezzat +8 more
doaj +2 more sources
Complex Genomes of Early Nucleocytoviruses Revealed by Ancient Origins of Viral Aminoacyl-tRNA Synthetases. [PDF]
Mol Biol EvolAminoacyl-tRNA synthetases (aaRSs), also known as tRNA ligases, are essential enzymes in translation. Owing to their functional essentiality, these enzymes are conserved in all domains of life and used as informative markers to trace the evolutionary ...
Kijima S +4 more
europepmc +3 more sources
Protein repeats evolve and emerge in giant viruses [PDF]
, 2023 Nucleocytoplasmatic large DNA viruses (NCLDVs or giant viruses) stand out because of their relatively large genomes encoding hundreds of proteins. These species give us an unprecedented opportunity to study the emergence and evolution of repeats in ...
Andrade Navarro, Miguel A. +4 more
core +4 more sources
A Large Open Pangenome and a Small Core Genome for Giant Pandoraviruses
Frontiers in Microbiology, 2018 Giant viruses of amoebae are distinct from classical viruses by the giant size of their virions and genomes. Pandoraviruses are the record holders in size of genomes and number of predicted genes. Three strains, P. salinus, P. dulcis, and P.
Sarah Aherfi +11 more
doaj +1 more source