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Asfarviruses and Closely Related Giant Viruses [PDF]

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, Bernard La Scola, Julien Andreani, Sarah Aherfi   +3 more
doaj   +5 more sources

Giant Viruses as a Source of Novel Enzymes for Biotechnological Application [PDF]

Pathogens, 2022
The global demand for industrial enzymes has been increasing in recent years, and the search for new sources of these biological products is intense, especially in microorganisms.
Ellen Gonçalves de Oliveira, João Victor Rodrigues Pessoa Carvalho, Bruna Barbosa Botelho, Clécio Alonso da Costa Filho, Lethícia Ribeiro Henriques, Bruna Luiza de Azevedo, Rodrigo Araújo Lima Rodrigues   +6 more
doaj   +4 more sources

Virome of Giant Panda-Infesting Ticks Reveals Novel Bunyaviruses and Other Viruses That Are Genetically Close to Those from Giant Pandas

Microbiology Spectrum, 2022
Tick infestations have been reported as one of the factors threatening the health of giant pandas, but studies of viral pathogens carried by ticks feeding on the blood of giant pandas are limited. To assess whether blood-sucking ticks of giant pandas can
Rui Ma, Min Zhao, Haoning Wang, Rong Hou, Kailin Qin, Yu Qian, Han Zhang, Yanshan Zhou, Wei Wu, Jiang Gu, Xiaochun Wang, Quan Shen, Songrui Liu, Jiabin Liu, Wenlei Bi, Xiang Yu, Shixing Yang, Feifei Feng, Zusheng Li, Long Zhang, Guanwei Lan, Chao Chen, Fei Xue, Yan Wang, Huang Chong, Yang Hong, Likai Ji, Yuwei Liu, Dunwu Qi, Tongling Shan, Wen Zhang   +30 more
doaj   +3 more sources

High Transcriptional Activity and Diverse Functional Repertoires of Hundreds of Giant Viruses in a Coastal Marine System

mSystems, 2021
The discovery of giant viruses has transformed our understanding of viral complexity. Although viruses have traditionally been viewed as filterable infectious agents that lack metabolism, giant viruses can reach sizes rivalling cellular lineages and ...
Anh D. Ha, Mohammad Moniruzzaman, Frank O. Aylward   +2 more
doaj   +5 more sources

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
doaj   +3 more sources

Virophages and Their Interactions with Giant Viruses and Host Cells

Proteomes, 2018
Virophages are small dsDNA viruses that were first isolated in association with some giant viruses (GVs), and then found in metagenomics samples. They encode about 20–34 proteins.
Haitham Sobhy
doaj   +3 more sources

Advantages and Limits of Metagenomic Assembly and Binning of a Giant Virus

mSystems, 2020
Giant viruses have large genomes, often within the size range of cellular organisms. This distinguishes them from most other viruses and demands additional effort for the successful recovery of their genomes from environmental sequence data.
Frederik Schulz, Julien Andreani, Rania Francis, Hadjer Boudjemaa, Jacques Yaacoub Bou Khalil, Janey Lee, Bernard La Scola, Tanja Woyke   +7 more
doaj   +3 more sources

Past and present giant viruses diversity explored through permafrost metagenomics

Nature Communications, 2022
Although giant viruses are abundant in aquatic environments, less is known about giant viruses in soil. Here, the authors use permafrost metagenomics to reveal giant virus diversity and heterogeneity, as well as gene transfers between viruses from ...
Sofia Rigou, Sébastien Santini, Chantal Abergel, Jean-Michel Claverie, Matthieu Legendre   +4 more
doaj   +1 more source

Giant Virus Infection Signatures Are Modulated by Euphotic Zone Depth Strata and Iron Regimes of the Subantarctic Southern Ocean

mSystems, 2023
Viruses can alter the abundance, evolution, and metabolism of microorganisms in the ocean, playing a key role in water column biogeochemistry and global carbon cycles. Large efforts to measure the contribution of eukaryotic microorganisms (e.g., protists)
Naomi E. Gilbert, Gary R. LeCleir, Helena L. Pound, Robert F. Strzepek, Michael J. Ellwood, Benjamin S. Twining, Simon Roux, Philip W. Boyd, Steven W. Wilhelm   +8 more
doaj   +1 more source

Diversity of Giant Viruses Infecting Vermamoeba vermiformis

Frontiers in Microbiology, 2022
The discovery of Acanthamoeba polyphaga mimivirus in 2003 using the free-living amoeba Acanthamoeba polyphaga caused a paradigm shift in the virology field.
Khalil Geballa-Koukoulas, Khalil Geballa-Koukoulas, Bernard La Scola, Guillaume Blanc, Julien Andreani   +4 more
doaj   +1 more source