Listar Artículos científicos por fecha de publicación
Mostrando ítems 41-60 de 237
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Alfalfa dwarf cytorhabdovirus P protein is a local and systemic RNA silencing supressor which inhibis program med RISC activity and prevents transitive amplification of RNA silencing
(2016)Plants employ RNA silencing as an innate defense mechanism against viruses. As a counter-defense, plant viruses have evolved to express RNA silencing suppressor proteins (RSS), which target one or more steps of the ... -
Complete genome sequence of a new enamovirus from Argentina infecting alfalfa plants showing dwarfism symptoms
(2016)Alfalfa dwarf disease, probably caused by synergistic interactions of mixed virus infections, is a major and emergent disease that threatens alfalfa production in Argentina. Deep sequencing of diseased alfalfa plant samples ... -
FISH-mapping of the 5S rDNA locus in chili peppers (Capsicum-Solanaceae)
(2016)We present here the physical mapping of the 5S rDNA locus in six wild and fi ve cultivated taxa of Capsicum by means of a genus-specifi c FISH probe. In all taxa, a single 5S locus per haploid genome that persistently mapped ... -
Molecular detection of Thecaphora frezzi in peanut (Arachis Hypogaea L.) seeds
(2016)Thecaphora frezii is the causal agent of peanut smut, important disease in the Argentine production area. The pathogen can be dispersed by kernels, through surface contamination or small lesions. The aim of this work was ... -
Cytorhabdovirus P3 genes encode 30K-like cell-to-cell movement proteins
(2016)Plant viruses encode movement proteins (MP) to facilitate cell-to-cell transport through plasmodesmata. In this study, using trans-complementation of a movement-defective turnip vein-clearing tobamovirus (TVCV) replicon, ... -
Occurrence and characterization of a severe isolate of Watermelon mosaic virus from Argentina
(2016)More than 50 viruses have been reported in cucurbit crops worldwide. In Argentina, cucurbit viruses have been associated with important yield losses. The most prevalent and widespread potyvirus is Watermelon mosaic virus ... -
The 18S–25S ribosomal RNA unit of yerba mate (Ilex paraguariensis A. St.-Hil.)
(2016)We present the first report of the transcribed 18S–25S ribosomal DNA (rDNA) unit of the South American crop Ilex paraguariensis. This tree is consumed as an infusion named “mate”. Next-generation sequencing data were ... -
Genetic variability and recombination analysis of the coat protein gene of Strawberry mild yellow edge virus
(2016)Strawberry mild yellow edge virus (SMYEV) has been detected in most of the strawberry production regions worldwide. However, little is known about differences between distinct isolates. The aim of this study was to enhance ... -
Use of 454-Pyrosequencing for the characterization of Sweet potato virus C and Sweet Potato Feathery Mottle virus Isolates fron Argentina and Development of a Multiplex one - step RT-PCR for Their Simultaneous Detection
(2016)454-pyrosequencing was applied as a tool to identify etiological agents involved in the symptoms observed in a sweet potato sample from Argentina. RNA was purified from symptomatic material and sequenced using a Roche 454 ... -
First report of cowpea mild mottle virus in chia (Salvia hispanica)
(2016)Chia (Salvia hispanica), a herbaceous plant of Lamiaceae family, has gained popularity due to its high concentrations of health-beneficial Omega-3 fatty acids. Plants showing different virus-like symptoms were observed ... -
Analysis of the coding-complete genomic sequence of groundnut ringspot virus suggests a common ancestor with tomato chlorotic spot virus
(2016)Groundnut ringspot virus (GRSV) and tomato chlorotic spot virus (TCSV) share biological and serological properties, so their identification is carried out by molecular methods. Their genomes consist of three segmented RNAs: ... -
Development of a non-radioactive molecular hybridization probe for detecting Strawberry mottle virus in strawberry
(2016)The vegetative propagation of strawberries favors transmission of systemic pathogens, such as viruses, which are one of the main yield-limiting factors for this crop. More than 20 viruses have been described as infecting ... -
Switching between monocot and dicot crops in rotation schemes of Argentinean productive fields results in an increment of arbuscular mycorrhizal fungi diversity
(2016-02)Despite the importance of mycorrhizal symbiosis, we understand little how different soil managements affect arbuscular mycorrhizal fungi (AMF) communities. Crop rotation is recommended in sustainable agriculture because ... -
Primer reporte de Sweet potato leaf curl virus en las provincias de Córdoba y Santiago del Estero de Argentina
(Facultad de Ciencias Exactas Físicas y Naturales, Universidad Nacional de Córdoba, 2016-03)La superficie con batata en Argentina experimentó notable reducción, causada por virosis que ocasionan daños en todas las regiones productoras, debido al intercambio indiscriminado de material de propagación y consiguiente ... -
First Report of Cladode Brown Spot in Cactus Prickly Pear Caused by Neofusicoccum batangarum in Brazil
(American Phytopathological Society, 2016-03-18)Cactus prickly pear (Nopalea cochenilifera) cladodes showing brown spot symptoms were collected of 18 fields of the State of Pernambuco, northeastern Brazil, from March to June 2014. The symptoms were prevalent in 100% of ... -
First report of Papaya ringspot virus infecting Carica papaya in Argentina
(Dipartimento di Scienze del Suolo, della Pianta e degli Alimenti, Università di Bari, 2016-06-20)Papaya plants (Carica papaya L.) with severe leaf mosaic and deformation symptoms were observed and collected in the Formosa, Corrientes and Misiones provinces of northern Argentina. These symptoms were similar to those ... -
Bean leafroll virus (BLRV) in Argentina: molecular characterization and detection in alfalfa fields
(Springer, 2016-09)Alfalfa (Medicago sativa L.) is the main forage crop in Argentina and plays an essential role in the animal production chain, but it can be negatively affected by many factors, such as viral diseases. Here, we report the ... -
First report of Cymbidium mosaic virus and Odontoglossum ring spot virus in Argentina
(Springer, 2016-09)Oncidium Sharry Baby orchids from nursery greenhouses in Buenos Aires, Argentina with viral symptoms were processed for transmission electron microscope observations. Two types of viral particles, morphologically different, ... -
An Integrated Physical Map of the Cultivated Hot Chili Pepper, Capsicum baccatum var. Pendulum
(2017)Capsicum baccatum var. Pendulum is the most frequently cultivated chili pepper in South America. This taxon is an outstanding source for breeding programs and genetic improvement in the genus, since its traits can be ... -
Fósforo del suelo : calidad del rastrojo y descomposición microbiana bajo diferentes contenidos hídricos = Soil phosphorus: stubble quality and microbial decomposition under contrasting water contents
(Asociación Argentina de la Ciencia del Suelo, 2017)Los residuos de los cultivos y rastrojos son un importante recurso para los agroecosistemas. Sin embargo, aún hay escasa información sobre procesos de liberación e inmovilización microbiana de nutrientes en relación a la ...