A5075414158- Seismic Waves and Analysis
- Ionosphere and magnetosphere dynamics
- Geophysics and Gravity Measurements
- Methane Hydrates and Related Phenomena
- Earthquake Detection and Analysis
- Solar and Space Plasma Dynamics
- Seismology and Earthquake Studies
- Plant Water Relations and Carbon Dynamics
- Metabolomics and Mass Spectrometry Studies
- Plant responses to elevated CO2
- Microbial Community Ecology and Physiology
- Atmospheric chemistry and aerosols
- Ecology and Vegetation Dynamics Studies
- Soil Carbon and Nitrogen Dynamics
- Marine and coastal ecosystems
- Plant biochemistry and biosynthesis
- Forest Insect Ecology and Management
- Isotope Analysis in Ecology
- Advanced Chemical Sensor Technologies
- Fire effects on ecosystems
- Marine and environmental studies
- Plant Stress Responses and Tolerance
- Bee Products Chemical Analysis
- Plant nutrient uptake and metabolism
- Entomological Studies and Ecology
Consejo Superior de Investigaciones Científicas
2012-2024
Pacific Northwest National Laboratory
2015-2024
Environmental Molecular Sciences Laboratory
2015-2023
Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria
2023
Government of the United States of America
2021
University of Missouri
2020
Centre for Research on Ecology and Forestry Applications
2011-2018
Global Ecology Unit CREAF-CSIC-UAB
2016
Universitat Autònoma de Barcelona
2011-2012
Abstract Human‐induced carbon and nitrogen fertilization are generating a strong imbalance with P . This confers an increasingly important role to availability N : ratio in the Earth's life system, affecting sequestration potential structure, function evolution of ecosystems.
Shifts in the elemental stoichiometry of organisms response to their ontogeny and changing environmental conditions should be related metabolomic changes because elements operate mostly as parts molecular compounds. Here we show this relationship leaves Erica multiflora throughout seasonal development moderate experimental field drought warming. The N/P ratio decreased metabolically active growing seasons, coinciding with an increase content primary metabolites. These results support...
Shoots and roots are autotrophic heterotrophic organs of plants with different physiological functions. Do they have metabolomes? their metabolisms respond differently to environmental changes such as drought? We used metabolomics elemental analyses answer these questions. First, we show that shoots metabolomes nutrient stoichiometries. Second, the shoot metabolome is much more variable among species seasons than root metabolome. Third, metabolic response drought contrasts roots; decrease...
van Krevelen diagrams (O/C vs H/C ratios of elemental formulas) have been widely used in studies to obtain an estimation the main compound categories present environmental samples. However, limits defining a specific category based solely on O/C and formulas never accurately listed or proposed classify metabolites biological Furthermore, while can provide overview categories, such classification is inefficient because large overlap among different along both axes. We propose more accurate...
Summary Tree stems from wetland, floodplain and upland forests can produce emit methane ( CH 4 ). stem emissions have high spatial temporal variability, but there is no consensus on the biophysical mechanisms that drive production emissions. Here, we summarize up to 30 opportunities challenges for research, which, when addressed, will improve estimates of magnitudes, patterns drivers trace their potential origin. We identified need: (1) both long‐term, high‐frequency measurements understand...
The increase in aridity, mainly by decreases precipitation but also higher temperatures, is likely the main threat to diversity and survival of Mediterranean forests. Changes land use, including abandonment extensive crop activities, mountains remote areas, increases human settlements demand for more resources with resulting fragmentation landscape, hinder establishment appropriate management tools protect forests their provision services biodiversity. Experiments observations indicate that...
Summary At the molecular level, folivory activity on plants has mainly been related to foliar concentrations of nitrogen (N) and/or particular metabolites. We studied responses different nutrients and whole metabolome Q uercus ilex seasonal changes moderate field experimental conditions drought, how this drought may affect activity, using stoichiometric metabolomic techniques. Foliar potassium ( K ) increased in summer consequently led higher : phosphorus P lower carbon C N ratios. ratios...
Abstract. Biomass-burning organic-aerosol (OA) emissions are known to exhibit semi-volatile behavior that impacts OA loading during plume transport. Because such depends in part on composition, improved speciation of intermediate and organic compounds (I/SVOCs) emitted fires is needed assess the competing effects primary volatilization secondary production. In this study, 18 laboratory were sampled which a range fuel types burned. Emitted I/SVOCs collected onto Teflon filters solid-phase...
Summary The study of the relationships between organisms and environmental elemental stoichiometry ecosystem structure function has recently received increasing attention. Some elements, however, have been less studied or even neglected. One these elements is K , despite its critical importance in water economy plants. We hypothesized that concentrations especially contents (concentrations × biomass), their stoichiometries with respect to C N P contents, relative allocations foliar woody...
Summary Metabolomics is allowing great advances in biological sciences. Recently, an increasing number of ecological studies are using a metabolomic approach to answer questions (ecometabolomics). Ecometabolomics becoming powerful tool which allows following the responses metabolome organism environmental changes and comparison populations. Some Nuclear Magnetic Resonance ( NMR ) protocols have been published for metabolomics analyses oriented other disciplines such as biomedicine, but there...
The present work has explored for the first time acclimation of upper versus lower canopy leaves along an altitudinal gradient. We tested hypothesis that restrictive climatic conditions associated with high altitudes reduce within-canopy variations leaf traits. investigated beech (Fagus sylvatica L.) forest is located on southern slope Hrubý Jeseník Mountains (Czech Republic). All measurements were taken from and parts mature trees (>85 years old) growing at low (400 m above sea level,...
Source-to-sink carbon (C) allocation driven by the sink strength, i.e., ability of a organ to import C, plays central role in tissue growth and biomass productivity. However, molecular drivers strength have not been thoroughly characterized trees. Auxin, as major plant phytohormone, regulates mobilization photoassimilates source tissues elevates translocation carbohydrates toward organs, including roots. In this study, we used an 'auxin-stimulated sink' approach understand processes involved...
Understanding of how soil organic matter (SOM) chemistry is altered in a changing climate has advanced considerably; however, most SOM components remain unidentified, impeding the ability to characterize major fraction and predict what types molecules, from which sources, will persist soil. We present novel approach better extracts by integrating information three analyses, we deploy this method decaying root-detritus microcosms subjected either drought or normal conditions. To observe broad...
Abstract Here, we examine how marine microbial communities respond when dissolved organic matter (DOM) is mobilized from coastal wetlands. Biological transformations of this DOM may increase in the presence reactive substrates, such as algal‐derived (ADOM) zone—a process known priming. We performed laboratory experiments examining derived wetland peat (PDOM) with and without ADOM. Associated shifts community composition functional gene abundance were measured to evaluate mechanisms priming...