Results 91 to 100 of about 377 (123)

Seasonal succession, host associations, and biochemical roles of aquatic viruses in a eutrophic lake plagued by cyanobacterial blooms.

Environment International
Viruses are implicated to play key roles as biogeochemical mediators and ecological drivers in freshwater ecosystems. However, the dynamics of viruses and host associations throughout the seasons and during blooming periods in eutrophic freshwater ...
L. Yuan, Pingfeng Yu, Xinyu Huang, Ze Zhao, Linxing Chen, Feng Ju   +5 more
semanticscholar   +1 more source

“Megavirales”, a proposed new order for eukaryotic nucleocytoplasmic large DNA viruses

Archives of Virology, 2013
The nucleocytoplasmic large DNA viruses (NCLDVs) comprise a monophyletic group of viruses that infect animals and diverse unicellular eukaryotes. The NCLDV group includes the families Poxviridae, Asfarviridae, Iridoviridae, Ascoviridae, Phycodnaviridae ...
P. Colson, X. D. de Lamballerie, N. Yutin, S. Asgari, Y. Bigot, D. Bideshi, Xiao-Wen Cheng, B. Federici, J. V. Van Etten, E. Koonin, B. La Scola, D. Raoult   +11 more
semanticscholar   +1 more source

SMRT Sequencing of Paramecium Bursaria Chlorella Virus-1 Reveals Diverse Methylation Stability in Adenines Targeted by Restriction Modification Systems

Frontiers in Microbiology, 2020
Chloroviruses (family Phycodnaviridae) infect eukaryotic, freshwater, unicellular green algae. A unique feature of these viruses is an abundance of DNA methyltransferases, with isolates dedicating up to 4.5% of their protein coding potential to these ...
Samantha R. Coy, Samantha R. Coy, Eric R. Gann, Spiridon E. Papoulis, Michael E. Holder, Nadim J. Ajami, Joseph F. Petrosino, Erik R. Zinser, James L. Van Etten, Steven W. Wilhelm   +9 more
doaj   +1 more source

Genomic and structural insights into Jyvaskylavirus, the first giant virus isolated from Finland

eLife
Giant viruses of protists are a diverse and likely ubiquitous group of organisms. Here, we describe Jyvaskylavirus, the first giant virus isolated from Finland.
Gabriel Magno de Freitas Almeida, Iker Arriaga, Bruna Luiza de Azevedo, Miika Leppänen, Jonatas S Abrahão, Julien Andreani, Davide Zabeo, Janne J Ravantti, Nicola GA Abrescia, Lotta-Riina Sundberg   +9 more
doaj   +1 more source

Transcription termination and readthrough in African swine fever virus

Frontiers in Immunology
Introduction African swine fever virus (ASFV) is a nucleocytoplasmic large DNA virus (NCLDV) that encodes its own host-like RNA polymerase (RNAP) and factors required to produce mature mRNA.
G. Cackett, Michal Sýkora, Raquel Portugal, Christopher Dulson, Linda K. Dixon, F. Werner   +5 more
semanticscholar   +1 more source

Antiviral Mx proteins have an ancient origin and widespread distribution among eukaryotes

bioRxiv
First identified in mammals, Mx proteins are potent antivirals against a broad swathe of viruses. Mx proteins arose within the Dynamin superfamily of proteins (DSP), mediating critical cellular processes, such as endocytosis and mitochondrial, plastid ...
Caroline A. Langley, Peter A. Dietzen, M. Emerman, J. Tenthorey, Harmit S. Malik   +4 more
semanticscholar   +1 more source

Experimental Inoculation in Rats and Mice by the Giant Marseillevirus Leads to Long-Term Detection of Virus

Frontiers in Microbiology, 2018
The presence of the giant virus of amoeba Marseillevirus has been identified at many different sites on the human body, including in the bloodstream of asymptomatic subjects, in the lymph nodes of a child with adenitis, in one adult with Hodgkin's ...
Sarah Aherfi, Claude Nappez, Hubert Lepidi, Hubert Lepidi, Marielle Bedotto, Lina Barassi, Priscilla Jardot, Philippe Colson, Bernard La Scola, Didier Raoult, Fabienne Bregeon, Fabienne Bregeon   +11 more
doaj   +1 more source

Phylogenetic proximity drives temporal succession of marine giant viruses in a five-year metagenomic time-series

bioRxiv
Nucleocytoplasmic Large DNA Viruses (NCLDVs, also called giant viruses) are widespread in marine systems and infect a broad range of microbial eukaryotes (protists). Recent biogeographic work has provided global snapshots of NCLDV diversity and community
S. Laperriere, Benjamin Minch, J. Weissman, Shengwei Hou, Yi-Chun Yeh, J. Cesar Ignacio-Espinoza, N. Ahlgren, M. Moniruzzaman, J. Fuhrman   +8 more
semanticscholar   +1 more source

Phaeocystis globosa Virus DNA Polymerase X: a “Swiss Army knife”, Multifunctional DNA polymerase-lyase-ligase for Base Excision Repair

Scientific Reports, 2017
Phaeocystis globosa virus 16T is a giant virus that belongs to the so-called nucleo-cytoplasmic large DNA virus (NCLDV) group. Its linear dsDNA genome contains an almost full complement of genes required to participate in viral base excision repair (BER).
José L. Fernández-García, Ana de Ory, Corina P. D. Brussaard, Miguel de Vega   +3 more
doaj   +1 more source

Continuous year-round isolation of giant viruses from brackish shoreline soils

Frontiers in Microbiology
Giant 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, Masaharu Takemura, Seiichi Suzuki   +2 more
doaj   +1 more source