A5051642022- Fire effects on ecosystems
- Isotope Analysis in Ecology
- Geology and Paleoclimatology Research
- Soil Carbon and Nitrogen Dynamics
- Rangeland and Wildlife Management
- Forest Biomass Utilization and Management
- Odor and Emission Control Technologies
- Building materials and conservation
- Archaeology and ancient environmental studies
- Edible Oils Quality and Analysis
- Plant Ecology and Soil Science
- Soil erosion and sediment transport
- Peatlands and Wetlands Ecology
- Coal and Its By-products
- Nanocomposite Films for Food Packaging
- Metabolomics and Mass Spectrometry Studies
- Atmospheric and Environmental Gas Dynamics
- Ecology and Vegetation Dynamics Studies
- Water Quality Monitoring and Analysis
- Fermentation and Sensory Analysis
- Agroforestry and silvopastoral systems
- Aeolian processes and effects
- Cultural Heritage Materials Analysis
- Enzyme-mediated dye degradation
- Microbial Metabolism and Applications
Instituto de Recursos Naturales y Agrobiología de Sevilla
2014-2024
University of Évora
2018-2024
Consejo Superior de Investigaciones Científicas
2015-2023
Universidad de Sevilla
2014
Abstract The relationship between soil organic matter (SOM) content and molecular assemblages ( n ‐alkane/alkenes pairs ‐fatty acids) with water repellency (WR) in different sieve fractions (1–2, 0·25–1, 0·05–0·5 <0·05 mm) was studied sandy soils from the Doñana National Park (SW Spain) under four vegetation species: Quercus suber (QS), Pteridium aquilinum (PA), Pinus pinea (PP) Halimium halimifolium (HH). severity of WR [assessed according to drop penetration time (WDPT) test] ordered...
Abstract Background Moonmilk represents complex secondary structures and model systems to investigate the interaction between microorganisms carbonatic rocks. Grotta Nera is characterized by numerous moonmilk speleothems of exceptional size hanging from ceiling, reaching over two meters in length. In this work we combined microbiological analyses with analytical pyrolysis carbon stable isotope data determine molecular composition these as well associated microbiota. Results Three were...
Wildfires, which impact millions of hectares globally each year, are among the most significant natural disturbances to terrestrial ecosystems [1]. Their effects on soil organic matter (SOM) and carbon (SOC)&#8212;critical indicators health ecosystem resilience [2,3]&#8212;are profound yet not fully understood. This study investigated recovery SOC its molecular composition over a year following wildfires varying severity (high, moderate, low/moderate) in Caldera de Taburiente...
Wildfires are a global phenomenon that occur across diverse biomes, imposing deep modifications on the quantity and quality (molecular composition) of soil organic matter (SOM). Targeting SOM molecular composition is an ongoing challenge for researchers, since inherently heterogeneous material with varying functionalities interactions mineral phase. The extent duration fire-induced alterations closely tied to fire severity, which influenced by environmental factors such as climate,...
The role of laccase SilA produced by Streptomyces ipomoeae CECT 3341 in lignocellulose degradation was investigated. A comparison the properties and activities a laccase-negative mutant strain (SilA−) with that wild-type studied terms their ability to degrade lignin from grass lignocellulose. yields solubilized (acid precipitable polymeric lignin, APPL) obtained wheat straw both strains Solid State Fermentation (SSF) conditions demonstrated importance showing 5-fold more APPL compared...
The network of lava tubes is one the most unexploited natural wonders Galapagos Islands. Here, we provide first morphological, mineralogical, and biogeochemical assessment speleothems from volcanic caves to understand their structure, composition, origin, as well identify organic molecules preserved in speleothems. Mineralogical analyses revealed that moonmilk coralloid Bellavista Royal Palm Caves were composed calcite, opal-A, minor amounts clay minerals. Extracellular polymeric substances,...
Soils constitute the major reservoir of mercury (Hg) in terrestrial ecosystems, whose stability may be threatened by wildfires. This research attempts to look at effect prescribed fire on presence Hg a shrubland ecosystem from NE Portugal, delving into its relationship with soil aggregate size and molecular composition organic matter (SOM). During fire, average 347 mg ha-1 were lost burnt aboveground biomass shrubs 263 combustion horizon. Overall, concentration pools mineral did not show...
Mediterranean savannahs (dehesas) are agro-sylvo-pastoral systems with a marked seasonality, severe summer drought and favourable rainy spring autumn. These conditions forecasted to become more extreme due the ongoing global climate change. Under such conditions, it is key understand soil organic matter (SOM) dynamics at molecular level. Here, analytical pyrolysis (Py-GC/MS) combined chemometric statistical approaches was used for characterization of SOM in five-years field manipulative...
Lanzarote (Canary Islands, Spain) is one of the best terrestrial analogs to Martian volcanology. Particularly, lava tubes may offer access recognizably preserved chemical and morphological biosignatures valuable for astrobiology. By combining microbiological, mineralogical, organic geochemistry tools, an in-depth characterization speleothems associated microbial communities in provided. The aim untangle underlying factors influencing colonization Earth's subsurface gain insight into...
Easily extractable glomalin (EEG) is a fraction of soil organic matter thought to contain mainly glomalin-related glycoproteins produced by mycorrhizal fungi. The EEG has an impact on various ecological functions, primarily related aggregation formation and stability as well water repellence. Here, analytical pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) was used for studying the molecular composition EEG, detailed description chemical reported. Samples extracted from...