Results 31 to 40 of about 779 (157)

Host genome integration and giant virus-induced reactivation of the virophage mavirus

Nature, 2016
Endogenous viral elements are increasingly found in eukaryotic genomes1, yet little is known about their origins, dynamics, or function. Here we provide a compelling example of a DNA virus that readily integrates into a eukaryotic genome where it acts as
Fischer, M., Thomas Hackl, Matthias G. Fischer, Hackl, T.   +3 more
core   +2 more sources

Capsid protein structure, self-assembly, and processing reveal morphogenesis of the marine virophage mavirus

Proceedings of the National Academy of Sciences of the United States of America, 2018
Virophages have the unique property of parasitizing giant viruses within unicellular hosts. Little is understood about how they form infectious virions in this tripartite interplay. We provide mechanistic insights into assembly and maturation of mavirus,
Fischer, M., Reuter, L., Müller, M., Mersdorf, U., Born, D., Reinstein, J., Meinhart, A.   +6 more
core   +2 more sources

Isolation and Identification of a Large Green Alga Virus (Chlorella Virus XW01) of Mimiviridae and Its Virophage (Chlorella Virus Virophage SW01) by Using Unicellular Green Algal Cultures. [PDF]

J Virol, 2022
Parasitic virophages are small unicellular eukaryotic dsDNA viruses that rely on the viral factories of coinfecting giant/large dsDNA viruses for propagation.
Sheng Y, Wu Z, Xu S, Wang Y.
europepmc   +2 more sources

Virophage infection mode determines ecological and evolutionary changes in a host-virus-virophage system. [PDF]

ISME J
Giant viruses can control their eukaryotic host populations, shaping the ecology and evolution of aquatic microbial communities. Understanding the impact of the viruses’ own parasites, the virophages, on the control of microbial communities remains a ...
Del Arco A, Becks L.
europepmc   +2 more sources

Unveiling the cryptic diversity and distribution of elements related to virophage mavirus through deep mining of pPolB proteins. [PDF]

Virol Sin
Virophages are unique double-stranded DNA (dsDNA) viruses that parasitize viruses of Nucleocytoviricota (NCVs). While conventionally viewed as a viral group, growing evidence suggests that “virophage” is better understood as a parasitic lifestyle, rather
Wei Y, Liu Q, Gong Z, Han GZ.
europepmc   +2 more sources

Open questions in the social lives of viruses

Journal of Evolutionary Biology, Volume 36, Issue 11, Page 1551-1567, November 2023., 2023
Social interactions among viruses are diverse and pervasive, with the potential to affect every stage of the viral lifecycle. Here, we explore some of the challenges and opportunities that these interactions present for evolutionary biology. Abstract Social interactions among viruses occur whenever multiple viral genomes infect the same cells, hosts ...
Asher Leeks, Lisa M. Bono, Elizabeth A. Ampolini, Lucas S. Souza, Thomas Höfler, Courtney L. Mattson, Anna E. Dye, Samuel L. Díaz‐Muñoz   +7 more
wiley   +1 more source

Evolution of virus and virophage facilitates persistence in a tripartite microbial system

bioRxiv, 2023
Tripartite biotic interactions are inherently complex, and the strong interdependence of species and high levels of exploitation can make these systems short-lived and vulnerable to extinction.
A. del Arco, M. Fischer, Lutz Becks
semanticscholar   +1 more source

Metabolic reconstruction of the near complete microbiome of the model sponge Ianthella basta

Environmental Microbiology, Volume 25, Issue 3, Page 646-660, March 2023., 2023
Abstract Many marine sponges host highly diverse microbiomes that contribute to various aspects of host health. Although the putative function of individual groups of sponge symbionts has been increasingly described, the extreme diversity has generally precluded in‐depth characterization of entire microbiomes, including identification of syntrophic ...
Joan Pamela Engelberts, Steven J. Robbins, Craig W. Herbold, Florian U. Moeller, Nico Jehmlich, Patrick W. Laffy, Michael Wagner, Nicole S. Webster   +7 more
wiley   +1 more source

Presence of CRISPR CAS‐Like Sequences as a Proposed Mechanism for Horizontal Genetic Exchanges between Trichomonas vaginalis and Its Associated Virus: A Comparative Genomic Analysis with the First Report of a Putative CRISPR CAS Structures in Eukaryotic Cells

BioMed Research International, Volume 2023, Issue 1, 2023., 2023
Introduction. Trichomonas vaginalis genome is among the largest genome size and coding capacities. Combinations of gene duplications, transposon, repeated sequences, and lateral gene transfers (LGTs) have contributed to the unexpected large genomic size and diversity. This study is aimed at investigating genomic exchange and seeking for presence of the
Azra Kenarkoohi, Amir Abdoli, Arman Rostamzad, Mahmoud Rashnavadi, Razi Naserifar, Jahangir Abdi, Morteza Shams, Arezoo Bozorgomid, Sepideh Saeb, Dhurgham Al-Fahad, Kosar Khezri, Shahab Falahi, Shibiao Wan   +12 more
wiley   +1 more source

Bacteriophages pass through candle‐shaped porous ceramic filters: Application for the collection of viruses in soil water

MicrobiologyOpen, Volume 11, Issue 5, October 2022., 2022
This study proposes to use porous candles as a new tool for collecting soil water viruses. In the first step, the passage of model viruses through the ceramic part of the candles was investigated. Regarding the field application, the experiments carried out showed a successful recovery of viruses, demonstrating the relevance and efficiency of such a ...
Perrine Florent, Henry‐Michel Cauchie, Malte Herold, Leslie Ogorzaly   +3 more
wiley   +1 more source