Results 21 to 30 of about 79 (71)

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

open access: yesViruses, 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   +4 more
doaj   +1 more source

A new Zamilon-like virophage partial genome assembled from a bioreactor metagenome

open access: yesFrontiers in Microbiology, 2015
Virophages replicate within viral factories inside the Acanthamoeba cytoplasm, and decrease the infectivity and replication of their associated giant viruses.
Meriem eBekliz   +8 more
doaj   +1 more source

GIANT VIRUSES: ORIGIN, SPREADING, TAXONOMICAL, STRUCTURAL-MORPHOLOGICAL AND MOLECULAR-BIOLOGICAL CHARACTERISTICS

open access: yesВопросы вирусологии, 2018
The brief review is devoted to description of the discovery of giant viruses belonging to the families of Mimiviridae and Marseilleviridae, as well as unassigned genera Pithoviruses, Pandoravirus, and Molliviruses.
D. K. Lvov   +3 more
doaj   +1 more source

Mimiviridae, Marseilleviridae, and virophages as emerging human pathogens causing healthcare-associated infections

open access: yesGMS Hygiene and Infection Control, 2014
[english] Aim: During the last decade it became obvious that viruses belonging to and families (order Megavirales), may be potential causative agents of pneumonia. Thus, we have performed a review of the association of , , and virophages with pneumonia,
Kutikhin, Anton G.   +2 more
doaj   +1 more source

A systematic approach to cancer: evolution beyond selection

open access: yesClinical and Translational Medicine, Volume 6, Issue 1, December 2017., 2017
AbstractCancer is typically scrutinized as a pathological process characterized by chromosomal aberrations and clonal expansion subject to stochastic Darwinian selection within adaptive cellular ecosystems. Cognition based evolution is suggested as an alternative approach to cancer development and progression in which neoplastic cells of differing ...
William B. Miller Jr., John S. Torday
wiley   +1 more source

The Common Ancestor of Archaea and Eukarya Was Not an Archaeon

open access: yesArchaea, Volume 2013, Issue 1, 2013., 2013
It is often assumed that eukarya originated from archaea. This view has been recently supported by phylogenetic analyses in which eukarya are nested within archaea. Here, I argue that these analyses are not reliable, and I critically discuss archaeal ancestor scenarios, as well as fusion scenarios for the origin of eukaryotes.
Patrick Forterre   +1 more
wiley   +1 more source

Ecological and evolutionary dynamics of cell-virus-virophage systems.

open access: yesPLoS Computational Biology
Microbial eukaryotes, giant viruses and virophages form a unique hyperparasitic system. Virophages are parasites of the virus transcription machinery and can interfere with virus replication, resulting in a benefit to the eukaryotic host population ...
Jose Gabriel Nino Barreat   +1 more
doaj   +1 more source

Metagenomic Analysis of Virus Diversity and Relative Abundance in a Eutrophic Freshwater Harbour

open access: yesViruses, 2019
Aquatic viruses have been extensively studied over the past decade, yet fundamental aspects of freshwater virus communities remain poorly described. Our goal was to characterize virus communities captured in the >0.22 µm size-fraction seasonally ...
Christine N. Palermo   +3 more
doaj   +1 more source

Polinton-like viruses are abundant in aquatic ecosystems

open access: yesMicrobiome, 2021
Background Polintons are large mobile genetic elements found in the genomes of eukaryotic organisms that are considered the ancient ancestors of most eukaryotic dsDNA viruses.
Christopher M. Bellas, Ruben Sommaruga
doaj   +1 more source

Smaller Fleas: Viruses of Microorganisms

open access: yesScientifica, Volume 2012, Issue 1, 2012., 2012
Life forms can be roughly differentiated into those that are microscopic versus those that are not as well as those that are multicellular and those that, instead, are unicellular. Cellular organisms seem generally able to host viruses, and this propensity carries over to those that are both microscopic and less than truly multicellular.
Paul Hyman   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy