Giant virus vs amoeba: fight for supremacy [PDF]
Virology Journal, 2019 Since the discovery of mimivirus, numerous giant viruses associated with free-living amoebae have been described. The genome of giant viruses can be more than 2.5 megabases, and virus particles can exceed the size of many bacteria.
Graziele Oliveira +2 more
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Simultaneous Giant Virus and Virophage Quantification Using Droplet Digital PCR [PDF]
Viruses, 2022 Viruses are an abundant component of aquatic systems, but their detection and quantification remain a challenge. Virophages co-replicate with giant viruses in the shared host cell, and can inhibit the production of new giant virus particles, thereby ...
Ana del Arco +2 more
doaj +6 more sources
Revisiting giant virus-host dynamics in brown algae: old stories and new perspectives [PDF]
The EMBO JournalThe recent discovery of widespread giant virus sequences integrated into the genomes of diverse eukaryotes, and in particular marine lineages, has reignited interest in the molecular mechanisms underlying giant virus–host interactions.
Carole Duchêne +2 more
doaj +2 more sources
Genome-resolved year-round dynamics reveal a broad range of giant virus microdiversity [PDF]
mSystemsGiant viruses are crucial for marine ecosystem dynamics because they regulate microeukaryotic community structure, accelerate carbon and nutrient cycles, and drive the evolution of their hosts through co-evolutionary processes.
Yue Fang +8 more
doaj +2 more sources
Diverse Trajectories Drive the Expression of a Giant Virus in the Oomycete Plant Pathogen Phytophthora parasitica [PDF]
Frontiers in Microbiology, 2021 Giant viruses of amoebas, recently classified in the class Megaviricetes, are a group of viruses that can infect major eukaryotic lineages. We previously identified a set of giant virus sequences in the genome of Phytophthora parasitica, an oomycete and ...
Sihem Hannat +15 more
doaj +2 more sources
Usurpativirus massiliensis, a new giant virus related to clandestinovirus [PDF]
Virology JournalGiant virus discovery in 2003 revolutionized the virus paradigm. In 2015, we introduced a new host, Vermamoeba vermiformis, that led to the discovery of Faustovirus, Orpheovirus and two giant viruses (Clandestinovirus and a faustovirus) having distinct ...
Julien Andreani +6 more
doaj +2 more sources
Sputnik virophage disrupts the transcriptional regulation of its host giant virus [PDF]
Journal of VirologySputnik virophages are small double-stranded DNA (dsDNA) viruses that replicate only inside host amoebae infected with giant dsDNA viruses, mimiviruses.
Jingjie Chen +2 more
doaj +2 more sources
Automated classification of giant virus genomes using a random forest model built on trademark protein families [PDF]
npj VirusesViruses of the phylum Nucleocytoviricota, often referred to as “giant viruses,” are prevalent in various environments around the globe and play significant roles in shaping eukaryotic diversity and activities in global ecosystems.
Anh D. Ha, Frank O. Aylward
doaj +2 more sources
Kinetic Analysis of the Motility of Giant Virus-Infected Amoebae Using Phase-Contrast Microscopic Images [PDF]
Frontiers in Microbiology, 2020 Tracking cell motility is a useful tool for the study of cell physiology and microbiology. Although phase-contrast microscopy is commonly used, the existence of optical artifacts called “halo” and “shade-off” have inhibited image analysis of moving cells.
Sho Fukaya +4 more
doaj +2 more sources
Asfarviruses and Closely Related Giant Viruses
Viruses, 2023 Acanthamoeba polyphaga mimivirus, so called because of its “mimicking microbe”, was discovered in 2003 and was the founding member of the first family of giant viruses isolated from amoeba.
Sihem Hannat +3 more
doaj +1 more source