A5005702275- Plant Water Relations and Carbon Dynamics
- Plant responses to water stress
- Soil Carbon and Nitrogen Dynamics
- Plant Stress Responses and Tolerance
- Fire effects on ecosystems
- Soil and Unsaturated Flow
- Irrigation Practices and Water Management
- Atmospheric and Environmental Gas Dynamics
- Allelopathy and phytotoxic interactions
- Agriculture, Plant Science, Crop Management
- Legume Nitrogen Fixing Symbiosis
- Forest ecology and management
- NMR spectroscopy and applications
- Advanced Neuroimaging Techniques and Applications
- Advanced NMR Techniques and Applications
Universidade Nova de Lisboa
2009-2015
Instituto de Tecnología Química
2011
Consejo Superior de Investigaciones Científicas
2009
Instituto Português Da Qualidade
2006-2008
Kazan Federal University
1998
We evaluated drought resistance mechanisms in a drought-tolerant clone (CN5) and drought-sensitive (ST51) of Eucalyptus globulus Labill. based on the responses to some physiological, biophysical morphological characteristics container-grown plants, with particular emphasis root growth hydraulic properties. Water loss excess that supplied containers led general decrease significant reductions leaf area ratio, specific leaf-to-root ratio. Root conductance leaf-specific decreased as water...
We compared the metabolic responses of leaves and roots two Eucalyptus globulus Labill. clones differing in drought sensitivity to a slowly imposed water deficit. Responses measured included changes concentrations soluble insoluble sugars, proline, total protein several antioxidant enzymes. In addition general decrease growth caused by deficit, we observed osmotic potential when stress became severe. both clones, was greater than leaves, consistent with increases sugars proline these organs....
We tested the hypothesis that Eucalyptus globulus Labill. genotypes are more resistant to dry environments might also exhibit higher cold tolerances than drought-sensitive plants. The effect of low temperatures was evaluated in acclimated and unacclimated ramets a drought-resistant clone (CN5) (ST51) E. globulus. studied plants' response via leaf gas exchanges, water osmotic potentials, concentrations soluble sugars, several antioxidant enzymes electrolyte leakage. Progressively lowering air...
Cork oak woodlands (montado) are agroforestry systems distributed all over the Mediterranean basin with a very important social, economic and ecological value. A generalized cork decline has been occurring in last decades jeopardizing its future sustainability. It is unknown how loss of tree cover affects microbial processes that consuming greenhouse gas fluxes montado ecosystem. The study was conducted under two different conditions natural understory woodland center Portugal: canopy (UC)...
A 10-20% decrease in annual precipitation is predicted the Mediterranean basin, and particular to Iberian Peninsula, with foreseen effects on exchange of soil-atmosphere greenhouse gases (GHGs; CO2, CH4, N2O). To simulate this scenario, we setup an experimental design particularly dry period 2008-2009 using rainfall exclusion irrigation, obtain plots receiving 110% (538 mm), 100% (493 mm) 74% (365 natural precipitation. Soil CO2 fluxes showed a strong increase from summer autumn as...
The effect of chilling on growth and plant hydraulic properties in a drought-resistant clone (CN5) drought-sensitive (ST51) Eucalyptus globulus Labill. was evaluated. Chilling (10/5°C, day/night) led to general decrease both clones significant reductions root conductivity, rate photosynthesis stomatal conductance comparison plants grown at control temperature (24/16°C). CN5 maintained higher lower leaf-to-root-area ratio than the ST51 clone, treatments. Conversely, exhibited greater carbon...