Results 61 to 70 of about 528 (131)
Entities inside one another ‐ a matryoshka doll in biology?
, 2019 Environmental Microbiology Reports, Volume 11, Issue 1, Page 26-28, February 2019.
Tanja Woyke, Frederik Schulz
wiley +1 more source
Giant viruses of amoebas: an update
Frontiers in Microbiology, 2016 During the 12 past years, five new or putative virus families encompassing several members, namely Mimiviridae, Marseilleviridae, pandoraviruses, faustoviruses, and virophages were described.
Sarah eAherfi +7 more
doaj +1 more source
Virophage control of antarctic algal host–virus dynamics [PDF]
Proceedings of the National Academy of Sciences, 2011 Viruses are abundant ubiquitous members of microbial communities and in the marine environment affect population structure and nutrient cycling by infecting and lysing primary producers. Antarctic lakes are microbially dominated ecosystems supporting truncated food webs in which viruses exert a major influence on the microbial loop.
Sheree, Yau +10 more
openaire +2 more sources
MG-Digger: an automated pipeline to search for giant virus-related sequences in metagenomes
Frontiers in Microbiology, 2016 The number of metagenomic studies conducted each year is growing dramatically. Storage and analysis of such big data is difficult and time-consuming. Interestingly, analysis shows that environmental and human metagenomes include a significant amount of ...
Jonathan eVerneau +4 more
doaj +1 more source
The virophage as a unique parasite of the giant mimivirus
Nature, 2008 Viruses are obligate parasites of Eukarya, Archaea and Bacteria. Acanthamoeba polyphaga mimivirus (APMV) is the largest known virus; it grows only in amoeba and is visible under the optical microscope. Mimivirus possesses a 1,185-kilobase double-stranded linear chromosome whose coding capacity is greater than that of numerous bacteria and archaea1, 2 ...
La Scola, Bernard +10 more
openaire +4 more sources
Genome and Environmental Activity of a Chrysochromulina parva Virus and Its Virophages
Frontiers in Microbiology, 2019 Some giant viruses are ecological agents that are predicted to be involved in the top-down control of single-celled eukaryotic algae populations in aquatic ecosystems.
Joshua M. A. Stough +10 more
doaj +1 more source
The origins of giant viruses, virophages and their relatives in host genomes [PDF]
BMC Biology, 2014 Giant viruses have revealed a number of surprises that challenge conventions on what constitutes a virus. The Samba virus newly isolated in Brazil expands the known distribution of giant mimiviruses to a near-global scale. These viruses, together with the transposon-related virophages that infect them, pose a number of questions about their ...
Katzourakis, A, Aswad, A
openaire +2 more sources
Diversity, evolution, and classification of virophages uncovered through global metagenomics
Microbiome, 2019 Background Virophages are small viruses with double-stranded DNA genomes that replicate along with giant viruses and co-infect eukaryotic cells. Due to the paucity of virophage reference genomes, a collective understanding of the global virophage ...
David Paez-Espino +12 more
doaj +1 more source
Giant virus vs amoeba: fight for supremacy
Virology Journal, 2019 Since the discovery of mimivirus, numerous giant viruses associated with free-living amoebae have been described. The genome of giant viruses can be more than 2.5 megabases, and virus particles can exceed the size of many bacteria.
Graziele Oliveira +2 more
doaj +1 more source
Role of the R349 Gene and Its Repeats in the MIMIVIRE Defense System
Frontiers in Microbiology, 2019 MIMIVIRE is a defense system described in lineage A Mimivirus (Mimiviridae family) that mediates resistance against Zamilon virophage. It is composed of putative helicase and nuclease associated with a gene of unknown function called R349, which contains
Said Mougari +5 more
doaj +1 more source