Results 21 to 30 of about 1,944 (165)

Sites responsible for infectivity and antigenicity on nervous necrosis virus (NNV) appear to be distinct

open access: yesScientific Reports, 2021
Nervous necrosis virus (NNV) is a pathogenic fish-virus belonging to the genus Betanodavirus (Nodaviridae). Surface protrusions on NNV particles play a crucial role in both antigenicity and infectivity.
Hyun Jung Gye, Toyohiko Nishizawa
doaj   +1 more source

THE FIRST OUTBREAK OF VIRAL ENCEPHALOPATHY AND RETINOPATHY IN FARMED SEA BASS (Dicentrarchus labrax) IN SLOVENIA

open access: yesSlovenian Veterinary Research, 2021
: Viral encephalopathy and retinopathy (VER) is considered a serious disease of several marine fish species, caused by RNA virus belonging to the family Nodaviridae, genus Betanodavirus.
Rosvita Sitar
doaj   +1 more source

Boolarra virus: a member of the Nodaviridae isolated from Oncopera intricoides (Lepidoptera: Hepialidae).

open access: yesIntervirology, 1985
A small RNA virus with a bipartite genome was isolated from Oncopera intricoides. It was named Boolarra virus (BoV). The particle had a diameter of 30 nm, a sedimentation coefficient of 140S, and a buoyant density of 1.34 g/ml in CsCl. The capsid proteins were examined by SDS-PAGE and consisted of a major species of molecular weight (mol.
C, Reinganum   +2 more
openaire   +2 more sources

Crystal Structures of a Piscine Betanodavirus: Mechanisms of Capsid Assembly and Viral Infection [PDF]

open access: yes, 2015
Betanodaviruses cause massive mortality in marine fish species with viral nervous necrosis. The structure of a T = 3 Grouper nervous necrosis virus-like particle (GNNV-LP) is determined by the ab initio method with non-crystallographic symmetry averaging
Chan, Sunney I.   +11 more
core   +4 more sources

Genetic Reassortment between Endemic and Introduced Macrobrachium rosenbergii Nodaviruses in the Murray-Darling Basin, Australia

open access: yesViruses, 2022
Macrobrachium rosenbergii nodavirus (MrNV)—the aetiological agent of white tail disease—is a major limiting factor of crustacean aquaculture as it causes up to 100% mortality in M. rosenbergii larvae and juveniles.
Vincenzo A. Costa   +3 more
doaj   +1 more source

Betanodavirus Quantification and IFN I-Antagonism Detection Using Luciferase Reporter Systems Based on Fish mx Promoters. [PDF]

open access: yesJ Fish Dis
ABSTRACT Mx genes display strong and quick induction in response to viral infections, which varies according to the viral virulence; furthermore, mx transcription is blocked by several viruses as part of their immune evasion strategies. Therefore, the level and time course of mx induction reflect virus–host interplay. This idea prompted the development
Álvarez-Torres D   +4 more
europepmc   +2 more sources

Genomic characterization of covert mortality nodavirus from farming shrimp: Evidence for a new species within the family Nodaviridae

open access: yesVirus Research, 2020
The prevalence of covert mortality nodavirus (CMNV) has become one of the major threats to the shrimp farming industry in Asia and South America recently. Here, the genomic RNA1 and RNA2 of CMNV were characterized by using transcriptome sequencing and RT-PCR.
Tingting, Xu   +3 more
openaire   +2 more sources

Complete Genome Sequence of Diaphorina citri-associated C virus, a Novel Putative RNA Virus of the Asian Citrus Psyllid, Diaphorina citri. [PDF]

open access: yes, 2016
We present here the complete nucleotide sequence and genome organization of a novel putative RNA virus identified in field populations of the Asian citrus psyllid, Diaphorina citri, through sequencing of the transcriptome followed by reverse ...
Falk, Bryce W   +2 more
core   +1 more source

Novel RNA viruses from the Atlantic Ocean: Ecogenomics, biogeography, and total virioplankton mass contribution from surface to the deep ocean

open access: yesEnvironmental Microbiology, Volume 25, Issue 12, Page 3151-3160, December 2023., 2023
In this study weexplored the Atlantic Ocean from 3 to 4,296 m to enhance our understanding of RNA viruses. Data revealed that overall RNA viruses potentially accounted for 5.2‐24.4% of the virioplankton with ≈106 VLP/ml. We identified 2,481 putative viral contigs, including 88 new RNA viruses highly endemic with no apparent association with depthor ...
Marina Vila‐Nistal   +3 more
wiley   +1 more source

Sequence analysis reveals a conserved extension in the capping enzyme of the alphavirus supergroup, and a homologous domain in nodaviruses [PDF]

open access: yes, 2015
Background: Members of the alphavirus supergroup include human pathogens such as chikungunya virus, hepatitis E virus and rubella virus. They encode a capping enzyme with methyltransferase-guanylyltransferase (MTase-GTase) activity, which is an ...
Ahola, Tero, Karlin, David G.
core   +1 more source

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