A5041054158- Plant Stress Responses and Tolerance
- Plant responses to water stress
- Legume Nitrogen Fixing Symbiosis
- Photosynthetic Processes and Mechanisms
- Agronomic Practices and Intercropping Systems
- Soybean genetics and cultivation
- Plant responses to elevated CO2
- Plant nutrient uptake and metabolism
- Plant Molecular Biology Research
- Nematode management and characterization studies
- Crop Yield and Soil Fertility
- Seed Germination and Physiology
- Aluminum toxicity and tolerance in plants and animals
- Plant Virus Research Studies
- Plant Micronutrient Interactions and Effects
- Paraquat toxicity studies and treatments
- Plant Reproductive Biology
- Plant Gene Expression Analysis
- Lichen and fungal ecology
- Glutathione Transferases and Polymorphisms
- Plant and soil sciences
- Plant-Microbe Interactions and Immunity
- Algal biology and biofuel production
- Plant Parasitism and Resistance
- Lipid Membrane Structure and Behavior
Universidad Nacional de Córdoba
2013-2025
Consejo Nacional de Investigaciones Científicas y Técnicas
2018-2025
National Agricultural Technology Institute
2012-2024
Instituto de Fisiología Vegetal
2001-2021
Instituto Nacional de Investigaciones Agropecuarias
2019
Centro Científico Tecnológico - San Juan
2017
Fundación Ciencias Exactas y Naturales
2012
Universidad de Alcalá
2003-2004
Changes in CuZn-SOD actvity and content isolated wheat chloroplasts under the light, involvement of protease(s) and/or active oxygen species this process were studied. Both SOD activity decayed with exposure time to photooxidative stress. Ascorbate, a H2O2 scavenger, prevented photooxidation-associated inactivation SOD, while benzoate, OH degradation. Wheat incubated dark did not hydrolyze exogenous or endogenous either H2O2-pretreated not. Protease inhibitors prevent degradation treatment,...
The participation of the antioxidant system in drought tolerance wheat cultivars (Triticum aestivum L.) was studied under field and vitro conditions. Under conditions, evaluated by capacity to maintain grain yield drought, which higher cvv. Elite La Paz than sensitive Oasis Cruz Alta. Tolerant showed lower relative water content (RWC) above-ground vegetative biomass cultivars. Field assays did not show a clear correlation between water-stress behaviour. However, when leaves with contrasting...
Eukaryotes contain three types of lipid kinases that belong to the phosphatidylinositol 3-kinase (PI3K) family. In plants and Saccharomyces cerevisiae, only PI3K class III family members have been identified. These enzymes regulate innate immune response, intracellular trafficking, autophagy, senescence. Here, we report RNAi-mediated downregulation common bean (Phaseolus vulgaris) severely impaired symbiosis in composite P. vulgaris with endosymbionts such as Rhizobium tropici Rhizophagus...
Abstract Hydrogen peroxide (H2O2) induces increases, to different degrees, in transcripts, protein levels, and activity of the Ndh complex (EC 1.6.5.3). In present work, we have compared effects relatively excess light, H2O2, dimethylthiourea (a scavenger H2O2), and/or EGTA Ca2+chelator) on levels barley (Hordeum vulgare cv Hassan) leaf segments. The results show involvement H2O2 modulation both level participation Ca2+ mainly regulation pre-existing protein. Changes could not be explained...
The symbiotic relationship between legumes and nitrogen-fixing rhizobia induces local systemic responses, which ultimately lead to nodule formation. Autoregulation of Nodulation (AON) is a mechanism related innate immunity that controls development involves different components ranging from hormones, peptides, receptors small RNAs. Here, we characterized rapid redox changes induced during soybean-Bradyrhizobium japonicum interaction. A transient peak reactive oxygen species (ROS) generation...
Abstract Soybean production can be affected by heat (HS) and water stress (WS). However, studies on effects of stresses combination under field conditions are still scarce. The objective this study was to evaluate the impact HS, WS their interaction (HS × WS) during seed filling weight, growth rate (SGR) duration (SFD) same phenological age pods from different canopy positions. Two soybean genotypes were exposed four treatments filling: control (irrigated plots at ambient temperature), HS...
The hypothesis that light- and oxygen-induced proteolysis in chloroplasts is mediated by active oxygen species was examined. In order to determine whether or not H2O2 and/or ˙OH radicals are involved these degradative processes we compared the degradation of proteins isolated oat exposed white light at 80 W m-2 with incubated darkness absence presence a ˙OH-generating system composed ascorbic acid, FeCl3 (Asc-Fe-H2O2). Light enhanced rate least 18 polypeptides, while almost negligible...
Studies focusing on terminal drought combined with heat impacts plants of agronomic value remain scarce, and even less under field conditions. The objective this study was to investigate leaf structural ultrastructural changes induced by stress (HS) (DS) during seed filling their relationship physiological variables yield determination. Two soybean cultivars were grown in During four treatments applied, including a control (without manipulation, at ambient temperature capacity), HS (episodes...
Abstract A positive relationship between protein concentration and yield has been documented in different combinations of genotype environment, often under potential conditions. However, the ecophysiological bases underlying this heat stress (HS) drought (DS) during seed filling are still lacking. Our objective was to evaluate content with field experiments exposed HS, DS HS × interaction filling. Two were conducted assimilates accumulation, remobilization redistribution patterns analysed...
Experimental evidence in the literature suggests that O2•− produced elongation zone of roots and leaves by plasma membrane NADPH oxidase activity is required for growth. This study explores whether growth changes along root tip induced hyperosmotic treatments Zea mays are associated with distribution apoplastic O2•−. Stress were imposed using 150 mm NaCl or 300 sorbitol. Root rates spatial measured. Apoplastic was determined nitro blue tetrazolium, H2O2 2′, 7′-dichlorofluorescin. In...