A5039731725- Plant and fungal interactions
- Plant Pathogens and Fungal Diseases
- Mycorrhizal Fungi and Plant Interactions
- Plant Toxicity and Pharmacological Properties
- Botanical Research and Chemistry
- Legume Nitrogen Fixing Symbiosis
- Turfgrass Adaptation and Management
- Weed Control and Herbicide Applications
- Plant responses to elevated CO2
- Plant Parasitism and Resistance
- Fungal Biology and Applications
- Plant and animal studies
- Chemical synthesis and alkaloids
- Plant tissue culture and regeneration
- Pesticide and Herbicide Environmental Studies
- Insect symbiosis and bacterial influences
- Plant-Microbe Interactions and Immunity
- Polar Research and Ecology
- Plant Taxonomy and Phylogenetics
- Ecology and Vegetation Dynamics Studies
- Nematode management and characterization studies
- Agroforestry and silvopastoral systems
- Atmospheric chemistry and aerosols
- Biocrusts and Microbial Ecology
- Seed Germination and Physiology
University of Buenos Aires
2016-2025
Consejo Nacional de Investigaciones Científicas y Técnicas
2016-2025
Agricultural Plant Physiology and Ecology Research Institute
2016-2025
University of Talca
2020-2025
University of New Mexico
2020
Agrifood Research Finland
2011-2014
National University of Comahue
2009
Abstract Increasing soil organic carbon (SOC) in agroecosystems is a key objective for enhancing agricultural sustainability and mitigating climate change. Arbuscular mycorrhizal fungi (AMF) can increase yield provide several other ecosystem services. Still, studies conducted soils have shown that their effects on SOC be either positive, neutral or negative. In this study, we quantitative review of the literature to evaluate role AMF influencing across various crop species conditions....
Variation exists in the frequency of obligate, vertically transmitted symbiotic organisms within and among host populations; however, these patterns have not been adequately explained by variable fitness effects symbionts on their hosts. In this forum, we call attention to another equally important, but overlooked mechanism maintain variation symbioses nature: rate vertical transmission. On ecological time scales, transmission can affect equilibrium frequencies populations, with potential...
Abstract Climatic change is pointed as one of the major challenges for global food security. Based on current models climate change, reduction in precipitations and turn, increase soil salinity will be a sharp constraint crops productivity worldwide. In this context, root fungi appear new strategy to improve plant ecophysiological performance crop yield under abiotic stress. study, we evaluated impact two fungal endophytes Penicillium brevicompactum P. chrysogenum isolated from Antarctic...
Persistence and ubiquity of vertically transmitted Neotyphodium endophytes in grass populations is puzzling because infected plants do not consistently exhibit increased fitness. Using an annual population model, we show that the problems for matching endophyte infection mutualism are likely to arise from difficulties detecting small mutualistic effects, variability transmission efficiency apparent prevalence non-equilibrium dynamics infection. Although would ultimately persist only if...
Since the beginning of agriculture, crops have been exposed to recurrent invasion by weeds that can impose severe reductions in crop quality and yield. There continuing efforts reduce impacts on production. More than 40 yr ago, overreliance herbicide technology weed infestations resulted selection adaptive traits enabled survival reproduction under treatments (Délye et al. 2007; Powles Yu 2010; Vila-Aiub 2008). As a result, resistance > 200 species has evolved worldwide (Heap 2013;
The plant hormone salicylic acid (SA) is recognized as an effective defence against biotrophic pathogens, but its role regulator of beneficial symbionts has received little attention. We studied the relationship between SA and leaf fungal endophytes on herbivore defences in symbiotic grasses. hypothesize that exposure suppresses endophyte reducing fungal-produced alkaloids. Because alkaloids play anti-herbivore defences, any reduction their production should make host plants more susceptible...
Functional symbiosis is considered one of the successful mechanisms by which plants that inhabit extreme environment improve their ability to tolerate different types stress. One most conspicuous type endophyticism. This interaction has been noted play a role in adaptation native vascular plant Colobanthus quitensis stressful environments Antarctica, characterized low temperatures and aridity. Projections climate change for this ecosystem indicate abiotic conditions will be less limiting due...
Abstract We reviewed and performed a quantitative synthesis on herbicide‐resistant weeds from rain‐fed crops in Argentina. Twenty‐four weed species distributed the main extensive (soybean, maize, wheat, barley, oilseed rape, sunflower, chickpea peanut) have evolved herbicide resistance. Of total, 54% are grasses, 88% annual 63% cross‐pollinated species. The most representative families were Poaceae with resistant species, followed by Brassicaceae 17%, Asteraceae 13%. Buenos Aires, Santa Fe...
In Argentinean crop fields, weed control is mainly achieved by intense use of glyphosate as a nonselective and/or selective herbicide. Glyphosate very high more than 95% the 16 million ha soybean consists glyphosate-resistant cultivars, always treated with this From initial success, inconsistent Johnsongrass, an invading C4 perennial grass crops, has become evident to producers from northern Argentina over last 3 yr. Prior this, provided good control. This study evaluated nature these...
Certain species of the Pooideae subfamily develop stress tolerance and herbivory resistance through symbiosis with vertically transmitted, asexual fungi. This is specific, genetic factors modulate compatibility between partners. Although gene flow clearly a fitness trait in allogamous grasses, because it injects hybrid vigor raw material for evolution, could reduce thus mutualism effectiveness. To explore importance host background modulating performance symbiosis, Lolium multiflorum plants,...
Glyphosate resistance in populations of the C(4) perennial Sorghum halepense (Johnsongrass) and C(3) annual Lolium rigidum (rigid ryegrass) has evolved been documented many cropping areas around globe. In S. majority reported cases L. glyphosate trait associated with a mechanism that reduces translocation within plants. Here, significant decrease level when resistant plants are grown at suboptimal cool temperature conditions is reported.Lowering from 30 to 19 °C 8 significantly reduced both...