Artículos científicos: Envíos recientes
Mostrando ítems 241-260 de 447
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Comparative analysis of the midgut microbiota of two natural tick vectors of Rickettsia rickettsii
(Elsevier, 2020-05)Although the ticks Amblyomma sculptum and Amblyomma aureolatum are important vectors of Rickettsia rickettsii, causative agent of the life-threatening Rocky Mountain spotted fever, A. aureolatum is considerably more ... -
Evaluation of hydrolytic enzyme activities from digestive fluids of Anthonomus grandis (Coleoptera: Curculionidae)
(Wiley, 2020-08)The cotton boll weevil, Anthonomus grandis, is a major pest of cotton crops in South America. In this work, partial biochemical characterizations of (hemi) cellulases and pectinases activities in the digestive system (head‐ ... -
Pathotype and SSR variation in Phytophthora sojae from the Argentinean Pampas
(Wiley, 2020-04)Genetic variation in Phytophthora sojae was compared between northern (NPS) and southern (SPS) Pampeana sub‐regions, in the core soya bean region of Argentina. Ninety‐three isolates from plants and soil were evaluated in ... -
Detección de bacterias de los géneros Ehrlichia, Anaplasma y Rickettsia en garrapatas Rhipicephalus sanguineus s.l en Pergamino, Argentina = Detection of Bacteria of the Genera Ehrlichia, Anaplasma and Rickettsia in Rhipicephalus sanguineus s.l Ticks in the City of Pergamino, Argentina
(Ministerio de Salud de la Nación, Argentina, 2019-12)INTRODUCCIÓN: Las rickettsiosis, ehrlichiosis y anaplasmosis son causadas por bacterias gramnegativas intracelulares obligadas y transmitidas por artrópodos. El objetivo de este trabajo fue determinar especies de garrapatas ... -
BoLA-DRB3 exon2 polymorphisms among tuberculous cattle: Nucleotide and functional variability and their association with bovine tuberculosis pathology
(Elsevier, 2020-06)Bovine tuberculosis (bTB) is caused by Mycobacterium bovis and disseminated worldwide. In Argentina, the highest prevalence occurs in dairy areas. BoLA DRB3.2 is related to the adaptive immunity in mycobacterial infections. ... -
Development of a copro-LAMP assay for detection of several species of Echinococcus granulosus sensu lato complex
(Elsevier, 2020-01)Cystic echinococcosis represents a significant problem in human and animal health and constitutes one of the most severe Neglected Tropical Diseases prioritized by the World Health Organization. The etiological agent is ... -
Spontaneous Mutations in the Nitrate Reductase Gene napC Drive the Emergence of Eco-friendly Low-N2O-Emitting Alfalfa Rhizobia in Regions with Different Climates
(Springer, 2020)We have recently shown that commercial alfalfa inoculants (e.g., Sinorhizobium meliloti B399), which are closely related to the denitrifier model strain Sinorhizobium meliloti 1021, have conserved nitrate, nitrite, and ... -
Unveiling the genetic basis of Sclerotinia head rot resistance in sunflower
(BMC, 2020-07)Background: Sclerotinia sclerotiorum is a necrotrophic fungus that causes Sclerotinia head rot (SHR) in sunflower, with epidemics leading to severe yield losses. In this work, we present an association mapping (AM) approach ... -
A candidate gene survey of quantitative trait loci affecting chemical composition in tomato fruit
(Society for Experimental Biology, 2008-07)In tomato, numerous wild-related species have been demonstrated to be untapped sources of valuable genetic variability, including pathogen-resistance genes, nutritional, and industrial quality traits. From a collection of ... -
Genetic dissection of vitamin E biosynthesis in tomato
(Society for Experimental Biology, 2011-07)Vegetables are critical for human health as they are a source of multiple vitamins including vitamin E (VTE). In plants, the synthesis of VTE compounds, tocopherol and tocotrienol, derives from precursors of the shikimate ... -
Estrategia de inmunoprofilaxis para la prevención de la rabia paresiante utilizando un virus canarypox recombinante = Immunoprophylaxis strategy for the prevention of paralytic rabies using a recombinant canarypox virus
(Servicio Nacional de Sanidad y Calidad Agroalimentaria (SENASA), 2015-03)La rabia paresiante es una enfermedad causada por el virus rábico transmitido por el vampiro común. En el norte de nuestro país, se registran anualmente un número limitado de casos por lo que es necesaria la implementación ... -
Neotropical termite microbiomes as sources of novel plant cell wall degrading enzymes
(Springer Nature, 2020-03-02)In this study, we used shotgun metagenomic sequencing to characterise the microbial metabolic potential for lignocellulose transformation in the gut of two colonies of Argentine higher termite species with different ... -
Transcript and metabolic adjustments triggered by drought in Ilex paraguariensis leaves
(Springer, 2019-08)Ilex paraguariensis (yerba mate) is cultivated in the subtropical region of South America, where the occurrence of drought episodes limit yield. To explore the mechanisms that allow I. paraguariensis to overcome dehydration, ... -
Paenibacillus xylanivorans sp. nov., a xylan-degrading bacterium isolated from decaying forest soil
(Microbiology Society, 2019-12)A xylanolytic bacterial strain, named A59T, was isolated from a forest soil consortium in southern Argentina. Strain A59T is a Gram-stain-positive, facultative anaerobic, endospore-forming and rod-shaped bacterium. Its ... -
Fiebre manchada en Argentina. Descripción de dos casos clínicos = Spotted fever in Argentina. Description of two clinical cases
(Elsevier España, 2019-12)Las rickettsiosis son enfermedades zoonóticas transmitidas por artrópodos vectores, que en Argentina presentan 2 escenarios epidemiológicos diferenciados. Uno, en las yungas de Salta y Jujuy, involucra vectores pertenecientes ... -
Rv2617c and P36 are virulence factors of pathogenic mycobacteria involved in resistance to oxidative stress
(Taylor & Francis, 2019-12)In this study, we characterized the role of Rv2617c in the virulence of Mycobacterium tuberculosis. Rv2617c is a protein of unknown function unique to M. tuberculosis complex (MTC) and Mycobacterium leprae. In vitro, this ... -
Analysing nonsynonymous mutations between two Mycobacterium bovis strains with contrasting pathogenic profiles
(Elsevier, 2019-12)Mycobacterium bovis (M. bovis) is the causative agent of bovine tuberculosis, a chronic infectious disease that can affect cattle, other domesticated species, wild animals and humans. This disease produces important economic ... -
Symbionts do not affect the mating incompatibility between the Brazilian-1 and Peruvian morphotypes of the Anastrepha fraterculus cryptic species complex
(Springer Nature, 2019-12)The South American fruit fly, Anastrepha fraterculus, is clearly undergoing a speciation process. Among others, two of their morphotypes, the Brazilian-1 and Peruvian, have accumulated differences in pre- and post-zygotic ... -
Highly efficient production of rabies virus glycoprotein G ectodomain in Sf9 insect cells
(Springer, 2019-11)In the present study, we developed a complete process to produce in insect cells a high amount of the ectodomain of rabies virus glycoprotein G (GE) as suitable antigen for detecting anti-rabies antibodies. Using the ... -
Ursolic acid : a novel antiviral compound inhibiting rotavirus infection in vitro
(Elsevier, 2019-11)Rotavirus is one of the leading causes of severe acute gastroenteritis in children under 5 years of age, mainly affecting developing countries. Once the disease is acquired, no specific treatment is available; as such, the ...