Temas
Mostrando ítems 1-20 de 21
-
A fijivirus major viroplasm protein shows RNA-stimulated ATPase activity by adopting pentameric and hexameric assemblies of dimers
(American Society for Microbiology, 2023-02)Fijiviruses replicate and package their genomes within viroplasms in a pro cess involving RNA-RNA and RNA-protein interactions. Here, we demonstrate that the 24 C-terminal residues (C-arm) of the P9-1 major viroplasm protein ... -
Agroinoculation of a full-length cDNA clone of cotton leafroll dwarf virus (CLRDV) results in systemic infection in cotton and the model plant Nicotiana benthamiana
(2013-07)Cotton blue disease is the most important viral disease of cotton in the southern part of South America. Its etiological agent, cotton leafroll dwarf virus (CLRDV), is specifically transmitted to host plants by the aphid ... -
Artificial microRNAs as antiviral strategy to FMDV: structural implications of target selection
(2014-04)RNA interference (RNAi) appears as a promising strategy to control virus replication. While the antiviral power of short-hairpin RNAs or small-interfering RNAs against FMDV has been demonstrated widely, safer RNAi effectors ... -
Bases moleculares de la interacción virus-planta : relación entre genes de defensa, ARNs pequeños y sintomatología
(Facultad de Agronomía, Universidad de Buenos Aires, 2013-03)Los virus fitopatógenos producen alteraciones en el metabolismo y la fisiología de sus huéspedes provocadas principalmente por alteraciones en la expresión génica durante las infecciones. Numerosos cambios están asociados ... -
Citrus psorosis virus 24K protein interacts with citrus miRNA precursors, affects their processing and subsequent miRNA accumulation and target expression
(2016-04)Sweet orange (Citrus sinensis), one of the most important fruit crops worldwide, may suffer from disease symptoms induced by virus infections, thus resulting in dramatic economic losses. Here, we show that the infection ... -
Coupling virus-induced gene silencing to exogenous green fluorescence protein expression provides a highly efficient system for functional genomics in arabidopsis and across all stages of tomato fruit development
(2011-07)Since the advent of the postgenomic era, efforts have focused on the development of rapid strategies for annotating plant genes of unknown function. Given its simplicity and rapidity, virus-induced gene silencing (VIGS) ... -
Differential mRNA accumulation upon early arabidopsis thaliana infection with ORMV and TMV-Cg Is associated with distinct endogenous small RNAs Level
(2015-08-03)Small RNAs (sRNAs) play important roles in plant development and host-pathogen interactions. Several studies have highlighted the relationship between viral infections, endogenous sRNA accumulation and transcriptional ... -
Estudio de la interacción hospedante-patógeno entre el Mal de Río Cuarto virus (MRCV) y el delfácido transmisor Delphacodes kuscheli
(Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 2011)El virus del Mal de Río Cuarto (MRCV, Reoviridae, Fijivirus) causa la principal enfermedad que afecta al maíz en la Argentina. Su genoma consiste en diez segmentos de ARN de doble cadena (S1 a S10) que codifican para un ... -
Estudio de los cambios transcriptómicos producidos por infecciones virales en plantas, rol de fitohormonas y su vinculación con la progresión de síntomas
(Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 2014-08)Las pérdidas en cultivos ocasionadas por virus dependen mayormente de la severidad de los síntomas producidos. La comprensión de los mecanismos moleculares que subyacen a la producción de síntomas es de importancia para ... -
First complete genome sequence of potato leafroll virus from Argentina
(2017-07)In this study, we determined for the first time the complete genomic sequence of an Argentinian isolate of Potato leafroll virus (PLRV), the type species of the genus Polerovirus. The isolate sequenced came from a Solanum ... -
Identification of a new cotton disease caused by an atypical cotton leafroll dwarf virus in Argentina
(2017)An outbreak of a new disease occurred in cotton (Gossypium hirsutum) fields in northwest Argentina starting in the 2009–10 growing season and is still spreading steadily. The characteristic symptoms of the disease included ... -
In vivo subcellular localization of Mal de Río Cuarto virus (MRCV) non-structural proteins in insect cells reveals their putative functions
(Elsevier, 2012-09)The in vivo subcellular localization of Mal de Río Cuarto virus (MRCV, Fijivirus, Reoviridae) non-structural proteins fused to GFP was analyzed by confocal microscopy. P5-1 showed a cytoplasmic vesicular-like distribution ... -
Mal de Río Cuarto Virus infection triggers the production of distinctive viral-derived siRNA profiles in wheat and Its planthopper vector
(2017)Plant reoviruses are able to multiply in gramineae plants and delphacid vectors encountering different defense strategies with unique features. This study aims to comparatively assess alterations of small RNA (sRNA) ... -
Metabolic and miRNA profiling of TMV infected plants reveals biphasic temporal changes
(2011-12-12)Plant viral infections induce changes including gene expression and metabolic components. Identification of metabolites and microRNAs (miRNAs) differing in abundance along infection may provide a broad view of the pathways ... -
Modeling tobacco mosaic virus proliferation in protoplasts
(2016)The tobacco mosaic virus (TMV) is one of the most studied viruses. It is frequently used as a model in the research of virus-host interactions. The interest in understanding the mechanism of its proliferation stems basically ... -
Negative modulation of SA signaling components by the capsid protein of tobacco mosaic virus is required for viral long-distance movement
(Wiley, 2021-05)An important aspect of plant–virus interaction is the way viruses dynamically move over long distances and how plant immunity modulates viral systemic movement. Salicylic acid (SA), a well-characterized hormone responsible ... -
RdDM pathway components differentially modulate Tobamovirus symptom development
(Springer, 2020-08)Small RNAs (sRNAs) are important molecules for gene regulation in plants and play an essential role in plant-pathogen interactions. Researchers have evaluated the relationship between viral infections as well as the ... -
Salicylic acid determines differential senescence produced by two turnip mosaic virus strains involving reactive oxygen species and early transcriptomic changes
(2013-12)Losses produced by virus diseases depend mostly on symptom severity. Turnip mosaic virus (TuMV) is one of the most damaging and widespread potyvirus infecting members of the family Brassicaceae, including Arabidopsis ... -
The P0 protein encoded by cotton leafroll dwarf virus (CLRDV) inhibits local but not systemic RNA silencing
(2014-02)Plants employ RNA silencing as a natural defense mechanism against viruses. As a counter-defense, viruses encode silencing suppressor proteins (SSPs) that suppress RNA silencing. Most, but not all, the P0 proteins encoded ... -
TMV induces RNA decay pathways to modulate gene silencing and disease symptoms
(2017)RNA decay pathways comprise a combination of RNA degradation mechanisms that are implicated in gene expression, development and defense responses in eukaryotes. These mechanisms are known as the RNA Quality Control or RQC ...