Results 21 to 30 of about 19,739 (107)

A Brief History of Giant Viruses’ Studies in Brazilian Biomes

Viruses, 2022
Almost two decades after the isolation of the first amoebal giant viruses, indubitably the discovery of these entities has deeply affected the current scientific knowledge on the virosphere. Much has been uncovered since then: viruses can now acknowledge
Paulo Victor M. Boratto, Mateus Sá M. Serafim, Amanda Stéphanie A. Witt, Ana Paula C. Crispim, Bruna Luiza de Azevedo, Gabriel Augusto P. de Souza, Isabella Luiza M. de Aquino, Talita B. Machado, Victória F. Queiroz, Rodrigo A. L. Rodrigues, Ivan Bergier, Juliana Reis Cortines, Savio Torres de Farias, Raíssa Nunes dos Santos, Fabrício Souza Campos, Ana Cláudia Franco, Jônatas S. Abrahão   +16 more
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Giant Viruses—Big Surprises

Viruses, 2019
Viruses are the most prevalent infectious agents, populating almost every ecosystem on earth. Most viruses carry only a handful of genes supporting their replication and the production of capsids.
Nadav Brandes, Michal Linial
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Ancestrality and Mosaicism of Giant Viruses Supporting the Definition of the Fourth TRUC of Microbes

Frontiers in Microbiology, 2018
Giant viruses of amoebae were discovered in 2003. Since then, their diversity has greatly expanded. They were suggested to form a fourth branch of life, collectively named ‘TRUC’ (for “Things Resisting Uncompleted Classifications”) alongside Bacteria ...
Philippe Colson, Anthony Levasseur, Bernard La Scola, Vikas Sharma, Vikas Sharma, Arshan Nasir, Arshan Nasir, Pierre Pontarotti, Pierre Pontarotti, Gustavo Caetano-Anollés, Didier Raoult   +10 more
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Quantitative Infection Dynamics of Cafeteria Roenbergensis Virus

Viruses, 2018
The discovery of giant viruses in unicellular eukaryotic hosts has raised new questions on the nature of viral life. Although many steps in the infection cycle of giant viruses have been identified, the quantitative life history traits associated with ...
Bradford P. Taylor, Joshua S. Weitz, Corina P. D. Brussaard, Matthias G. Fischer   +3 more
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The Secret Life of Giant Viruses in the California Current

mSystems, 2021
In the last few decades, the virology field has experienced a revolution in knowledge related to viral richness, diversity, and distribution in the oceans.
Jônatas Santos Abrahão
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Investigations into the Diversity and Distribution of tRNA and Phylogenetics of Translation Factors in Amoebozoa-Infecting Nucleocytoviricota

Viruses
Translation is a sine qua non process for life as we know it. Translation factors (TFs) and tRNAs are rare among viruses but are commonly found in giant viruses of the class Megaviricetes.
Thaís I. R. Moreira, João Victor R. P. Carvalho, Clécio A. C. Filho, Júlia W. Souza, Bruna L. de Azevedo, Jônatas S. Abrahão, Rodrigo A. L. Rodrigues   +6 more
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Virus Genomes from Deep Sea Sediments Expand the Ocean Megavirome and Support Independent Origins of Viral Gigantism

mBio, 2019
The nucleocytoplasmic large DNA viruses (NCLDV) of eukaryotes (proposed order, “Megavirales”) include the families Poxviridae, Asfarviridae, Iridoviridae, Ascoviridae, Phycodnaviridae, Marseilleviridae, and Mimiviridae, as well as still unclassified ...
Disa Bäckström, Natalya Yutin, Steffen L. Jørgensen, Jennah Dharamshi, Felix Homa, Katarzyna Zaremba-Niedwiedzka, Anja Spang, Yuri I. Wolf, Eugene V. Koonin, Thijs J. G. Ettema   +9 more
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High-throughput isolation of giant viruses in liquid medium using automated flow cytometry and fluorescence staining.

Frontiers in Microbiology, 2016
The isolation of giant viruses using amoeba co-culture is tedious and fastidious. Recently, the procedure was successfully associated with a method that detects amoebal lysis on agar plates. However, the procedure remains time-consuming and is limited to
Jacques Yaacoub Bou Khalil, stephane eRobert, Dorine gaëlle Reteno, Julien eAndreani, Didier eRaoult, Didier eRaoult, Bernard eLa Scola, Bernard eLa Scola   +7 more
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Discovery and Further Studies on Giant Viruses at the IHU Mediterranee Infection That Modified the Perception of the Virosphere

Viruses, 2019
The history of giant viruses began in 2003 with the identification of Acanthamoeba polyphaga mimivirus. Since then, giant viruses of amoeba enlightened an unknown part of the viral world, and every discovery and characterization of a new giant virus ...
Clara Rolland, Julien Andreani, Amina Cherif Louazani, Sarah Aherfi, Rania Francis, Rodrigo Rodrigues, Ludmila Santos Silva, Dehia Sahmi, Said Mougari, Nisrine Chelkha, Meriem Bekliz, Lorena Silva, Felipe Assis, Fábio Dornas, Jacques Yaacoub Bou Khalil, Isabelle Pagnier, Christelle Desnues, Anthony Levasseur, Philippe Colson, Jônatas Abrahão, Bernard La Scola   +20 more
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A Phylogenomic Study of Acanthamoeba polyphaga Draft Genome Sequences Suggests Genetic Exchanges With Giant Viruses

Frontiers in Microbiology, 2018
Acanthamoeba are ubiquitous phagocytes predominant in soil and water which can ingest many microbes. Giant viruses of amoebae are listed among the Acanthamoeba-resisting microorganisms.
Nisrine Chelkha, Anthony Levasseur, Pierre Pontarotti, Didier Raoult, Bernard La Scola, Philippe Colson   +5 more
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