Results 11 to 20 of about 873 (125)

Incomplete tricarboxylic acid cycle and proton gradient in Pandoravirus massiliensis: is it still a virus? [PDF]

The ISME Journal, 2021
The discovery of Acanthamoeba polyphaga Mimivirus, the first isolated giant virus of amoeba, challenged the historical hallmarks defining a virus. Giant virion sizes are known to reach up to 2.3µm, making them visible by optical microscopy.
Abrahao, Jonatas, Aherfi, Sarah, Baudoin, Jean-Pierre, Brahim Belhaouari, Djamal, Chabriere, Eric, Colson, Philippe, Decloquement, Philippe, La Scola, Bernard, Lamb, David, Levasseur, Anthony, Pinault, Lucile, Raoult, Didier   +11 more
core   +9 more sources

DNA transposons have colonized the genome of the giant virus Pandoravirus salinus [PDF]

BMC Biology, 2015
BACKGROUND: Transposable elements are mobile DNA sequences that are widely distributed in prokaryotic and eukaryotic genomes, where they represent a major force in genome evolution.
Cheng Sun, Cédric Feschotte, Rachel Lockridge Mueller, Zhiqiang Wu   +3 more
core   +4 more sources

Evidence of a Cellulosic Layer in Pandoravirus massiliensis Tegument and the Mystery of the Genetic Support of Its Biosynthesis [PDF]

Frontiers in Microbiology, 2019
Pandoraviruses are giant viruses of ameba with 1 μm-long virions. They have an ovoid morphology and are surrounded by a tegument-like structure lacking any capsid protein nor any gene encoding a capsid protein. In this work, we studied the ultrastructure
Djamal Brahim Belhaouari, Jean-Pierre Baudoin, Franck Gnankou, Fabrizio Di Pinto, Philippe Colson, Philippe Colson, Sarah Aherfi, Sarah Aherfi, Bernard La Scola, Bernard La Scola   +9 more
doaj   +6 more sources

Marine and giant viruses as indicators of a marine microbial community in a riverine system [PDF]

MicrobiologyOpen, Volume 5, Issue 6, Page 1071-1084, December 2016., 2016
Viral communities are important for ecosystem function as they are involved in critical biogeochemical cycles and controlling host abundance. This study investigates riverine viral communities around a small rural town that influences local water inputs.
Dann, L., Jeffries, T., McKerral, J., Mitchell, J., Oliver, R., Paterson, J., Rosales, S., Smith, R.   +7 more
core   +2 more sources

A puzzling anomaly in the 4-mer composition of the giant pandoravirus genomes reveals a stringent new evolutionary selection process [PDF]

Journal of Virology, 2019
International audienceThe Pandoraviridae is a rapidly growing family of giant viruses, all of which have been isolated using laboratory strains of Acanthamoeba.
Abergel, Chantal, Claverie, Jean-Michel, Jeudy, Sandra, Poirot, Olivier   +3 more
core   +7 more sources

Metavirome survey of eight ray-finned fishes: Domination of giant viral members from pandoravirus and megaviricetes [PDF]

Journal of Clinical and Basic Research
Background: Fish are an essential source of food worldwide. Most microbial diversity in marine ecosystems remains uncharacterized, with viruses accounting for most of the remaining diversity.
Fatemeh Sana Askari, Alireza Mohebbi
doaj   +1 more source

Genome Sequences of Two New Pandoravirus Strains Isolated from Brazil and France. [PDF]

Microbiol Resour Announc, 2022
Pandoraviruses are giant viruses of amoebas with a wide range of genome sizes (1.5 to 2.5 Mbp) and 1-μm ovoid viral particles. Here, we report the isolation, genome sequencing, and annotation of two new strains from the proposed family Pandoraviridae: Pandoravirus belohorizontensis and Pandoravirus aubagnensis.
Brahim Belhaouari D, Hannat S, Rodrigues R, Aherfi S, La Scola B, Andreani J.   +5 more
europepmc   +4 more sources

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. [PDF]

Biomed Res Int, 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
Kenarkoohi A, Abdoli A, Rostamzad A, Rashnavadi M, Naserifar R, Abdi J, Shams M, Bozorgomid A, Saeb S, Al-Fahad D, Khezri K, Falahi S.   +11 more
europepmc   +2 more sources

Unveiling Common Bean (<i>Phaseolus vulgaris</i> L) RNA- and DNA-Based Virome in Western Kenya: Insights From Metatranscriptomic and Metagenomic Signatures. [PDF]

Adv Virol
Common bean (Phaseolus vulgaris L) is Kenya’s second most important agricultural product after maize, serving as a vital source of protein for many rural families in Western Kenya. However, viral diseases caused by RNA and DNA viruses greatly impair bean productivity, often leading to yield losses of up to 100%, thus contributing to food insecurity ...
Osogo AK, Muyekho F, Were H, Okoth P.
europepmc   +2 more sources

High-Throughput Sequencings Revealed That Gut Microbiota Dysbiosis is Implicated in Gouty Arthritis of Red-Crowned Crane (<i>Grus japonensis</i>). [PDF]

Transbound Emerg Dis
The red‐crowned crane (Grus japonensis) is one of the rarest cranes with a global population of less than 4000 individuals. The population of red‐crowned crane could be influenced by health threats, including metabolic and infectious diseases. In the Wildlife Rescue Center of Suining County of Jiangsu Province, gouty arthritis (GA) was observed in all ...
Lin H, Zhu X, Zhu J, Chen N, Bao W, Peng Z.   +5 more
europepmc   +2 more sources