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Mostrando ítems 1-20 de 25
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Are Sunflower chlorotic mottle virus infection symptoms modulated by early increases in leaf sugar concentration?
(Elsevier, 2010-09-15)Symptom development in a susceptible sunflower line inoculated with Sunflower chlorotic mottle virus (SuCMoV) was followed in the second pair of leaves at different post-inoculation times: before symptom expression (BS), ... -
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 ... -
Biostimulants as forest protection agents: Do these products have an effect against abiotic stress on a forest native species? Aspects to elucidate their action mechanisms
(Elsevier, 2022-10)Projections of climatic change pose a challenging scenario for the management and adaptation of ecosystems. It is expected that forests around the world will be exposed to severe stress conditions such as imposed for ... -
Caracterización de polifenoles y actividad antioxidante de yerba mate (Ilex paraguariensis) compuesta con Rosella (Hibiscus sabdariffa)
(Sociedad Latinoamericana de Nutrición, 2021-10-13)La yerba mate (YM) es considerada una fuente importante de antioxidantes naturales (especialmente polifenoles) y se sugiere que es una forma económica y efectiva de ingerir antioxidantes naturales. El aumento de interés ... -
Combined effect of salinity and hypoxia in seedlings of two varieties of Panicum coloratum: morphology, root system architecture, oxidative damage and antioxidant response
(Wiley, 2021-09)The effect of the combination of salinity and waterlogging may be additive, or alternatively, more or less detrimental than effects of them separately. Our objective was to evaluate the effects of waterlogging, salinity ... -
Contrasting adaptive responses to cope with drought stress and recovery in Cenchrus ciliaris L. and their implications for tissue lignification
(Wiley, 2020-11-12)Cenchrus ciliaris L. is a widely used species for cattle feed in arid and semi-arid regions due to good forage value and known tolerance to drought conditions. Here, we provide insights to adaptive responses of two contrasting ... -
Could Biostimulants with Plant Active Compounds Improve the Tolerance to Oxidative Stress in Prosopis alba (Griseb.)?
(MDPI, 2022-03)The aim of this work was to explore the potential of four phytoextracts derived from species with recognized antioxidant activity and/or rich in polysaccharides as plant biostimulants of seedlings of Prosopis alba. ... -
Differential response of Trichloris ecotypes from different habitats to drought and salt stress
(Springer, 2020-08-05)Native plant genetic resources have evolved from long processes of natural selection and adaptation to specific environments, and have developed tolerance to various stresses prevailing in their natural habitats via adaptive ... -
Direct effect of ozone pollution on aphids: revisiting the evidence at individual and population scales
(2015-04)Most of our knowledge about the consequences of tropospheric ozone pollution on aphid–plant interaction assumes the absence of a direct effect of ozone on aphids. However, the biological effects of ozone encompass changes ... -
DMSO supplementation during in vitro maturation of bovine oocytes improves blastocyst rate and quality
(Elsevier, 2020-05)The molecule Dimethyl sulfoxide is widely used as drug solvent. However, its antioxidant property was poorly explored. In this study, we evaluated the effect of DMSO supplementation during oocyte in vitro maturation (IVM) ... -
DNA damage and oxidative stress in gill cells of Cnesterodon decemmaculatus exposed to pesticides by runoff source in an agricultural basin
(Wiley, 2023-01)In our country, great concern exists about diffuse pollution cause by the great use of pesticides in rural environments. A thorough analysis is needed to generate information, know the real situation and thus, be able to ... -
Down-regulation of catalase activity contributes to senescence induction in wheat leaves exposed to shading stress
(Springer, 2015-01)In shaded wheat (Triticum aestivum L.) leaves, the suppression of blue radiation (BR) triggers senescence. This phenomenon is correlated to an increase in oxidative stress symptoms and a decrease of catalase (CAT) activity, ... -
Efectos de las actividades antrópicas sobre parámetros metabólicos en un bivalvo invasor y otro nativo en el tramo inferior del río Paraná
(Asociación Argentina de Ecología, 2022-12)The relationship between anthropogenic contamination, geochemistry, and the natural dynamics of freshwater ecosystems determine spatial and temporal patterns of water quality. Human activities and the introduction of exotic ... -
Genomic comparison of two strains of Mycobacterium avium subsp. paratuberculosis with contrasting pathogenic phenotype
(Elsevier, 2023-01)In a previous study, we evaluated the degree of virulence of Mycobacterium avium subsp. paratuberculosis (Map) strains isolated from cattle in Argentina in a murine model. This assay allowed us to differentiate between ... -
Integrated analysis of the quality of water bodies from the lower Paraná River basin with different productive uses by physicochemical and biological indicators
(Elsevier, 2020-03-20)The Paraná River basin is one of the most important in South America and is affected by human activities that take place on its margins. In particular, the De la Cruz stream flows through an industrial pole and the Arrecifes ... -
Malondialdehyde content as a potential biochemical indicator of tolerant Cenchrus ciliaris L. genotypes under heat stress treatment
(Wiley, 2012-09)Buffel grass (Cenchrus ciliaris L.) is an important forage grass in arid and semiarid regions. As part of a genetic improvement programme, four genotypes [Biloela (Bl), Americana (Am), Texas (Tx) and Sexual (Sx)] were ... -
Measurement of malondialdehyde as oxidative stress biomarker in goat plasma by HPLC-DAD
(2016-11)During the cattle breeding, the animals are exposed to stressful conditions (confinement, competition, extreme temperatures, pathogens); these have been associated to the increase of reactive oxygen species that attack ... -
Oxidative stress mitigation in horticultural crops using foliar applications of Ilex paraguariensis extract: a dose-dependent study
(Wiley, 2023-11)Abiotic stress has been shown to induce the formation of reactive oxygen species (ROS) in plant cells. When the level of ROS surpasses the capacity of the endogenous defence mechanism, oxidative stress status is reached, ... -
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 ... -
Seed priming induces biochemical changes in melon plants and increase salt tolerance
(Ediciones INTA, 2020-08)An experiment was conducted to evaluate the effect of priming on germination and initial growth of melon plants under salinity conditions. Two osmotic agents (NaCl and CaCl2) and two treatment durations (2 and 4 days) were ...