Results 11 to 20 of about 933 (157)

Guarani Virophage, a New Sputnik-Like Isolate From a Brazilian Lake [PDF]

Frontiers in Microbiology, 2019
Virophages are critical regulators of viral population dynamics and potential actors in the stability of the microbial networks. These small biological entities predate the replicative cycle of giant viruses, such as the members of the Mimiviridae family
Said Mougari, Meriem Bekliz, Jonatas Abrahao, Jonatas Abrahao, Fabrizio Di Pinto, Anthony Levasseur, Bernard La Scola   +6 more
doaj   +9 more sources

Zamilon, a novel virophage with Mimiviridae host specificity. [PDF]

PLoS ONE, 2014
Virophages, which are potentially important ecological regulators, have been discovered in association with members of the order Megavirales. Sputnik virophages target the Mimiviridae, Mavirus was identified with the Cafeteria roenbergensis virus, and ...
Morgan Gaia, Samia Benamar, Mondher Boughalmi, Isabelle Pagnier, Olivier Croce, Philippe Colson, Didier Raoult, Bernard La Scola   +7 more
doaj   +4 more sources

Conserved tripartite tail proteins mediate virophage-host interactions through Synechococcus lipopolysaccharide binding [PDF]

Journal of Virology
Virophages are small double-stranded DNA viruses that parasitize giant viruses and play crucial roles in microbial ecosystem dynamics. In this study, we investigate three evolutionarily conserved tail proteins in Dishui Lake Virophage 2 (DSLV2) that ...
Ting Chu, Qinran Wang, Chen Hu, Zexian Zhou, Bo Li, Yesheng Yan, Xiang Li, Aohan Wang, Qianglin Fang, Shuling Yan, Lanming Chen, Yongxin Yu, Yongjie Wang   +12 more
doaj   +2 more sources

Evolutionary Dynamics of Giant Viruses and their Virophages [PDF]

Ecology and Evolution, 2013
Giant viruses contain large genomes, encode many proteins atypical for viruses, replicate in large viral factories, and tend to infect protists. The giant virus replication factories can in turn be infected by so called virophages, which are smaller ...
Anderson, Beddington, Briggs, Claverie, Claverie, Claverie, Claverie, Colson, Culley, Desnues, Desnues, Desnues, Fischer, Fischer, Forterre, Gillespie, Herrero-Uribe, Hochberg, Holt, Iyer, Koonin, Krupovic, Lawrence, May, McCallum, Nowak, Pearson, Raoult, Raoult, Roy, Ruiz-Saenz, Scola, Scola, Scola, Sun, Suzan-Monti, Wodarz, Yamada, Yau, Zhang   +39 more
core   +7 more sources

Large-scale invasion of unicellular eukaryotic genomes by integrating DNA viruses. [PDF]

Proc Natl Acad Sci U S A, 2023
Eukaryotic genomes contain a variety of endogenous viral elements (EVEs), which are mostly derived from RNA and ssDNA viruses that are no longer functional and are considered to be “genomic fossils.” Genomic surveys of EVEs, however, are strongly biased ...
Bellas C, Hackl T, Plakolb MS, Koslová A, Fischer MG, Sommaruga R.   +5 more
europepmc   +3 more sources

Novel virophages discovered in a freshwater lake in China [PDF]

Frontiers in Microbiology, 2016
Virophages are small double-stranded DNA viruses that are parasites of giant DNA viruses that infect unicellular eukaryotes. Here we identify a novel group of virophages, named Dishui Lake virophages (DSLVs) that were discovered in Dishui Lake (DSL): an ...
Chaowen eGong, Weijia eZhang, Xuewen eZhou, Hongming eWang, Guowei eSun, Jinzhou eXiao, Yingjie ePan, Shuling eYan, Yongjie eWang   +8 more
doaj   +4 more sources

The Discovery of a New Mimivirus Isolate in Association with Virophage-Transpoviron Elements in Brazil Highlights the Main Genomic and Evolutionary Features of This Tripartite System [PDF]

Viruses, 2022
Mimiviruses are giant viruses of amoeba that can be found in association with virophages. These satellite-like viruses are dependent on the mimivirus viral factory to replicate.
Bruna Luiza de Azevedo, João Pessoa Araújo Júnior, Leila Sabrina Ullmann, Rodrigo Araújo Lima Rodrigues, Jônatas Santos Abrahão   +4 more
doaj   +2 more sources

Seasonal dynamics and diversity of Antarctic marine viruses reveal a novel viral seascape. [PDF]

Nat Commun
The Southern Ocean microbial ecosystem, with its pronounced seasonal shifts, is vulnerable to the impacts of climate change. Since viruses are key modulators of microbial abundance, diversity, and evolution, we need a better understanding of the effects ...
Piedade GJ, Schön ME, Lood C, Fofanov MV, Wesdorp EM, Biggs TEG, Wu L, Bolhuis H, Fischer MG, Yutin N, Dutilh BE, Brussaard CPD.   +11 more
europepmc   +5 more sources

Virophages of Giant Viruses: An Update at Eleven [PDF]

Viruses, 2019
The last decade has been marked by two eminent discoveries that have changed our perception of the virology field: The discovery of giant viruses and a distinct new class of viral agents that parasitize their viral factories, the virophages.
Said Mougari, Dehia Sahmi-Bounsiar, Anthony Levasseur, Philippe Colson, Bernard La Scola   +4 more
doaj   +4 more sources

Lineage-specific expansions of polinton-like viruses in photosynthetic cryptophytes [PDF]

Microbiome
Background Polinton-like viruses (PLVs) are diverse eukaryotic DNA viral elements (14–40 kb) that often undergo significant expansion within protist genomes through repeated insertion events. Emerging evidence indicates they function as antiviral defense
Paul-Adrian Bulzu, Helena Henriques Vieira, Rohit Ghai   +2 more
doaj   +2 more sources