A5067616311- Legume Nitrogen Fixing Symbiosis
- Plant-Microbe Interactions and Immunity
- Polyamine Metabolism and Applications
- Plant Pathogenic Bacteria Studies
- Plant Pathogens and Fungal Diseases
- Plant Disease Management Techniques
- Cassava research and cyanide
- Nematode management and characterization studies
- Plant tissue culture and regeneration
- Fungal Plant Pathogen Control
- Essential Oils and Antimicrobial Activity
- Plant Disease Resistance and Genetics
- Parasitic Infections and Diagnostics
- Mycotoxins in Agriculture and Food
- Medicinal Plants and Neuroprotection
- Plant Pathogens and Resistance
- Nitrogen and Sulfur Effects on Brassica
- Seed Germination and Physiology
- Plant responses to water stress
- Fungal Biology and Applications
- Plant Gene Expression Analysis
- Plant pathogens and resistance mechanisms
- Postharvest Quality and Shelf Life Management
- GABA and Rice Research
- Toxoplasma gondii Research Studies
Instituto Tecnológico de Chascomús
2015-2024
Consejo Nacional de Investigaciones Científicas y Técnicas
2015-2024
National University of General San Martín
2014-2024
University of Virginia
2022
Universitat de València
2018
Summary Reactive oxygen species ( ROS ) play fundamental roles in plant responses to pathogen infection, including modulation of cell death processes and defense‐related gene expression. Cell triggered as part the hypersensitive response enhances resistance biotrophic pathogens, but favors virulence necrotrophs. Even though involvement orchestration defense is well established, relative contribution specific subcellular sources against microorganisms with different pathogenesis strategies...
Abstract The role of polyamine (PA) metabolism in tobacco (Nicotiana tabacum) defense against pathogens with contrasting pathogenic strategies was evaluated. Infection by the necrotrophic fungus Sclerotinia sclerotiorum resulted increased arginine decarboxylase expression and activity host tissues, as well putrescine spermine accumulation leaf apoplast. Enhancement PA levels, either using transgenic plants or infiltration exogenous PAs, led to necrosis due infection S. sclerotiorum. Specific...
Botrytis cinerea, as a necrotrophic fungus, kills host tissues and feeds on the remains. This fungus is able to induce hypersensitive response (HR) its hosts, thus taking advantage host's defense machinery for generating necrotic tissues. However, identity of HR effectors produced by B. cinerea not clear. The aim this work was determine whether botrydial, phytotoxic sesquiterpene plant using Arabidopsis thaliana model. Botrydial induced expression marker HSR3, callose deposition,...
Abstract Bacterial phytopathogens living on the surface or within plant tissues may experience oxidative stress because of triggered defense responses. Although it has been suggested that polyamines can defend bacteria from this stress, mechanism behind action is not entirely understood. In study, we investigated effects polyamine homeostasis pathogen Pseudomonas syringae and functions these compounds in bacterial tolerance. We demonstrated respond to H 2 O by increasing external levels...
Abstract A collection of isolates the fungi Leptosphaeria maculans and L . biglobosa , which cause blackleg disease on Brassica napus (canola/oilseed rape) other Brassicaceae species, was assembled to represent global diversity these pathogens a resource for international research. The consists 226 (205 21 ) from 11 countries. genomes all 205 were sequenced, distribution identity avirulence gene alleles determined based genotypic information phenotypic reactions B lines that hosted specific...
Endophytic bacteria colonize inner plant tissues and thrive at the apoplast, which is considered its main reservoir. Because this niche place where molecular events take between beneficial pathogenic microorganisms, aim of work was to characterize culturable endophytic from apoplastic fluids obtained field-grown canola leaves analyze their potential for biological control diseases caused by Xanthomonas campestris, Sclerotinia sclerotiorum, Leptosphaeria maculans. Dual-culture analysis...
Abstract Plants live under the constant challenge of microbes that probe environment in search potential hosts. Plant cells perceive microbe-associated molecular patterns (MAMPs) from incoming and activate defense responses suppress attempted infections. Despite substantial progress made understanding MAMP-triggered signaling pathways, downstream mechanisms bacterial growth disease remain poorly understood. Here, we uncover how MAMP perception Arabidopsis (Arabidopsis thaliana) elicits...
Abstract Polyamine biosynthesis starts with putrescine production through the decarboxylation of arginine or ornithine. In Arabidopsis thaliana , is synthesised exclusively by decarboxylase ( ADC ), which exists as two isoforms 1 and 2 ) that are differentially regulated abiotic stimuli, but their role in defence against pathogens has not been studied depth. This work analysed participation Pseudomonas viridiflava . activity expression, polyamine levels bacterial resistance were null mutants...
Abstract Polyamines (PAs) play important roles in plant defense against pathogens, but the regulation of PA metabolism by hormone‐mediated signaling pathways has not been studied depth. In this study, modulation salicylic acid (SA) was analyzed Arabidopsis combining exogenous application hormone with biosynthesis and SA synthesis/signaling mutants. induced notable modifications metabolism, mainly consisting putrescine (Put) accumulation both whole‐plant extracts apoplastic fluids. Put...
To succeed in plant invasion, phytopathogenic bacteria rely on virulence mechanisms to subvert immunity and create favorable conditions for growth. This process requires a precise regulation the production of important proteins metabolites. Among them, family compounds known as polyamines have attracted considerable attention they are involved cellular processes, but it is not yet how regulate polyamine homeostasis environment. In present study, we performed meta-analysis publicly available...
Introduction:Volcanism is an important natural origin of Arsenic (As) contamination.Aims: Oxidative stress parameters, antioxidant defense system, the expression transcripts involved in responses and As genotoxicity were analyzed.Study Design: The plants separated into two groups (Control As-treated ones) until they exposed to (2.5 5 ppm) at day 10.Methodology: Biochemical, molecular cytogenetic determinations carried out.Results: treated show growth abnormalities.The defenses oxidative...
Polyamines (PAs) are natural aliphatic amines involved in many physiological processes almost all living organisms, including responses to abiotic stresses and microbial interactions. This review presents the profuse evidence that relates changes polyamines levels during biotic model cultivable species within Leguminosae, examines their potential roles functioning of symbiotic interactions with nitrogen fixing bacteria arbuscular mycorrhizae. The family Leguminosae constitutes an...