Results 81 to 90 of about 1,238 (172)
Characteristics of virophages and giant viruses
Acta Biochimica Polonica, 2018 Five years after being discovered in 2003, some giant viruses were demonstrated to play a role of the hosts for virophages, their parasites, setting out a novel and yet unknown regulatory mechanism of the giant viruses presence in an aqueous. So far, 20 virophages have been registered and 13 of them have been described as a metagenomic material, which ...
Wiesław Deptuła +3 more
openaire +3 more sources
The discovery of CRISPR in archaea and bacteria [PDF]
, 2016 CRISPR-Cas are self-/nonself-discriminating systems found in prokaryotic cells. They represent a remarkable example of molecular memory that is hereditarily transmitted.
Mojica, Francisco J.M. +1 more
core +2 more sources
MG-Digger: an automated pipeline to search for giant virus-related sequences in metagenomes
Frontiers in Microbiology, 2016 The number of metagenomic studies conducted each year is growing dramatically. Storage and analysis of such big data is difficult and time-consuming. Interestingly, analysis shows that environmental and human metagenomes include a significant amount of ...
Jonathan eVerneau +4 more
doaj +1 more source
iMetaOmics, Volume 2, Issue 2, June 2025.Botswana's Seronga region saw a mass elephant die‐off potentially linked to water sources. This study analyzes Okavango Delta metagenomes, uncovering a diversity of viruses and harmful pathogens. Findings highlight the importance of understanding viral ecology in these waters and support One Health's objective in protecting human, animal, and ecosystem
Emilie J. Skoog +8 more
wiley +1 more source
Host genome integration and giant virus-induced reactivation of the virophage mavirus
Nature, 2016 Endogenous viral elements are increasingly found in eukaryotic genomes, yet little is known about their origins, dynamics, or function. Here we provide a compelling example of a DNA virus that readily integrates into a eukaryotic genome where it acts as ...
M. Fischer, T. Hackl
semanticscholar +1 more source
Dinucleotide biases in the genomes of prokaryotic and eukaryotic dsDNA viruses and their hosts
Molecular Ecology, Volume 33, Issue 6, March 2024.Abstract The genomes of cellular organisms display CpG and TpA dinucleotide composition biases. Such biases have been poorly investigated in dsDNA viruses. Here, we show that in dsDNA virus, bacterial, and eukaryotic genomes, the representation of TpA and CpG dinucleotides is strongly dependent on genomic G + C content.
Diego Forni +3 more
wiley +1 more source
Amoebae as Battlefields for Bacteria, Giant Viruses, and Virophages [PDF]
Journal of Virology, 2013 ABSTRACT When amoebae are simultaneously infected with Acanthamoeba polyphaga Mimivirus (APM) and the strictly intracellular BABL1 bacterium, the latter is always lost after serial subculturing. We showed that the virophage Sputnik 1, by reducing APM fitness, preserved BABL1 growth in acute and chronic ...
Meriem, Slimani +3 more
openaire +2 more sources
The evolutionary ecology of molecular replicators [PDF]
Royal Society Open Science, 2016 By reasonable criteria, life on the Earth consists mainly of molecular replicators. These include viruses, transposons, transpovirons, coviruses and many more, with continuous new discoveries like Sputnik Virophage.
Sean Nee
doaj +1 more source
Environmental Microbiology, Volume 26, Issue 2, February 2024.Relative abundance of the metagenome‐assembled viral genomes (bottom arch) identified in the hindgut metagenomes and metatranscriptomes of Epibolus pulchripes and Glomeris connexa. The top arch shows the coverage of each viral phylum mapped to the identified metagenome‐assembled viral genomes in transcripts per million.
Julius Eyiuche Nweze +2 more
wiley +1 more source
Genome and Environmental Activity of a Chrysochromulina parva Virus and Its Virophages
Frontiers in Microbiology, 2019 Some giant viruses are ecological agents that are predicted to be involved in the top-down control of single-celled eukaryotic algae populations in aquatic ecosystems.
Joshua M. A. Stough +10 more
doaj +1 more source