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Mostrando ítems 1-20 de 36
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Advances in the etiology of sweet potato (Ipomoea batatas (L.) Lam) yellow curling disease in Argentina
(Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, 2022-12)Sweet potato yellow curling (YC), the most severe disease of sweet potato detected in Argentina, causes symptoms and damage to sweet potato crops in all cultivated regions. Since 2010/11, the presence of four viruses has ... -
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 ... -
An analysis of the genomic variability of the phytopathogenic mollicute Spiroplasma kunkelii
(American Phytopathological Society, 2013-02)Corn stunt disease has become a factor limiting maize production in some areas of the Americas in recent years. Although resistant maize genotypes have been developed in the past, this resistance has been unstable over ... -
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: ... -
Bottom-up effect of nitrogen fertilization on the density of the corn leafhopper and its impact on both disease incidence and natural parasitism
(Springer, 2022-04-15)The corn leafhopper Dalbulus maidis is a specialist herbivore that attacks maize in the tropical and subtropical regions of the Americas. It is the vector of three relevant plant pathogens that are responsible for severe ... -
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 ... -
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, ... -
Detection and identification of a novel 16SrXIII subgroup phytoplasma associated with strawberry red leaf disease in Argentina
(2015-08)Strawberry red leaf phytoplasma was found in strawberry plants from production fields in Lules (Tucumán province) and Bella Vista (Corrientes province), Argentina. Characteristic strawberry red leaf symptoms were stunting, ... -
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 ... -
Efecto de nuevos fungicidas en el control de viruela del maní y el rendimiento del cultivo
(Facultad de Agronomía y Veterinaria, Universidad Nacional de Río Cuarto, 2018-07)Las enfermedades son el principal problema sanitario del maní (Arachis hypogaea L.), siendo viruela (Cercospora arachidicola Hori y Cercosporidium personatum (Berck. & Curt Deighton)) la más importante del mundo, y la que ... -
Effect of solarization, organic matter, and Trichoderma on the severity of Verticillium wilt in olive trees (Olea europaea L.) and soil inoculum density
(International Society for Horticultural Science, 2014)In October 2005, two trials were conducted at two locations of La Rioja province (Argentina), to assess the effect of soil solarization, application of organic matter and inoculation with Thichoderma harziarum on diseased ... -
Efficacy of fungicides against peanut smut in Argentina
(Elsevier, 2020-09-28)Peanut smut, caused by Thecaphora frezii, increased its incidence and prevalence in the main growing region of Argentina in the last decade becoming the main peanut disease. Despite this fact, growers continue producing ... -
Estado actual de la sanidad del cultivo de maíz en Argentina
(Asociación Argentina de Productores en Siembra Directa, 2015-02-06)En el país, un factor relevante para la difusión de las enfermedades en el maíz lo constituye el desarrollo y adopción de nuevos escenarios tecnológicos productivos con la incorporación masiva de sistemas de labranza que ... -
First confirmed report of Colletotrichum coccodes causing black dot on potato in Mexico
(Springer, 2020-04)During February and March 2019, black dot symptoms were observed on potato stems in a commercial field located in Ahome, Sinaloa, Mexico. Morphological and molecular approaches confirmed the identity of Colletotrichum ... -
First report of Berkeleyomyces basicola (synonymous: Thielaviopsis basicola) on roots of sweet potato (Ipomoea batatas (L.) Lam) in Argentina
(Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, 2021-07-07)Symptomatic sweet potato cv Arapey INIA samples were collected from a commercial production field in Colonia Molina, Guaymallén department, Mendoza province, Argentina. They showed dark rounded lesions, sometimes coalescing ... -
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 ... -
First report of Xanthomonas prunicola causing bacterial leaf streaks on wheat in Argentina
(American Phytopathological Society, 2022-06-13)Since 2018, bacterial-like symptoms, such as leaf streaks were observed on wheat plants (Triticum aestivum L.) in Córdoba province in Argentina, with 1 to 5% of disease incidence. Samples of wheat stem and spike collected ... -
First report of ‘Candidatus Phytoplasma pyri’-related strain causing pear decline in Argentina
(Elsevier, 2019-07)Pear decline (PD) is an important disease affecting pear production worldwide and “Candidatus Phytoplasma pyri” (subgroup 16SrX-C) is the etiological agent of this disease. In Argentina, typical symptomatology of PD ... -
Genetic Diversity of Rice stripe necrosis virus and New Insights into Evolution of the Genus Benyvirus
(MDPI, 2021-04-23)The rice stripe necrosis virus (RSNV) has been reported to infect rice in several countries in Africa and South America, but limited genomic data are currently publicly available. Here, eleven RSNV genomes were entirely ... -
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 ...