A5034518340- Plant Micronutrient Interactions and Effects
- Coffee research and impacts
- Plant responses to elevated CO2
- Plant Stress Responses and Tolerance
- Heavy Metals in Plants
- Selenium in Biological Systems
- Plant Physiology and Cultivation Studies
- Potato Plant Research
- Heavy metals in environment
- Banana Cultivation and Research
- Horticultural and Viticultural Research
- Plant responses to water stress
- Postharvest Quality and Shelf Life Management
- Crop Yield and Soil Fertility
- Legume Nitrogen Fixing Symbiosis
- Magnesium in Health and Disease
- Agricultural Science and Fertilization
- Plant nutrient uptake and metabolism
- Growth and nutrition in plants
- Photosynthetic Processes and Mechanisms
- Food composition and properties
- Trace Elements in Health
- Plant-Microbe Interactions and Immunity
- Agricultural and Food Sciences
- Silicon Effects in Agriculture
University of Lisbon
2014-2024
Universidade Nova de Lisboa
2019-2024
Instituto Nacional de Investigação Agrária e Veterinária
2015-2024
Instituto Politécnico de Lisboa
2014-2021
Instituto Superior Técnico
2021
Escola Secundária Quinta do Marquês
2016
University of Beira Interior
2007
University of Nyíregyháza
1990
Abstract The tropical coffee crop has been predicted to be threatened by future climate changes and global warming. However, the real biological effects of such remain unknown. Therefore, this work aims link physiological biochemical responses photosynthesis elevated air [ CO 2 ] temperature in cultivated genotypes C offea arabica L. (cv. Icatu IPR 108) Coffea canephora cv. Conilon CL 153. Plants were grown for ca. 10 months at 25/20 °C (day/night) 380 or 700 μl l −1 then subjected increase...
Modelling studies have predicted that coffee crop will be endangered by future global warming, but recent reports highlighted high [CO2] can mitigate heat impacts on coffee. This work aimed at identifying protective mechanisms promoted CO2 in Coffea arabica (cv. Icatu and IPR108) C. canephora cv. Conilon CL153. Plants were grown 25/20 ºC (day/night), under 380 or 700 μL L-1, then gradually submitted to 31/25, 37/30 42/34 ºC. Relevant tolerance up for both all genotypes was observed, likely...
Climate changes, mostly related to high temperature, are predicted have major negative impacts on coffee crop yield and bean quality. Recent studies revealed that elevated air [CO2] mitigates the impact of heat leaf physiology. However, extent interaction between quality was never addressed. In this study, single combined enhanced temperature in beans Coffea arabica cv. Icatu were evaluated. Plants grown at 380 or 700 μL CO2 L-1 air, then submitted a gradual rise from 25°C up 40°C during ca....
Climate changes boosted the frequency and severity of drought heat events, with aggravated when these stresses occur simultaneously, turning crucial to unveil plant response mechanisms such harsh conditions. Therefore, responses/resilience single combined exposure severe water deficit (SWD) were assessed in two cultivars main coffee-producing species: Coffea arabica cv. Icatu C. canephora Conilon Clone 153 (CL153). Well-watered plants (WW) exposed SWD under an adequate temperature 25/20°C...
Coffee is one of the world's most traded agricultural products. Modeling studies have predicted that climate change will a strong impact on suitability current cultivation areas, but these not anticipated possible mitigating effects elevated atmospheric [CO2] because no information exists for coffee plant. Potted plants from two genotypes Coffea arabica and C. canephora were grown under controlled conditions irradiance (800 μmol m-2 s-1), RH (75%) 380 or 700 μL CO2 L-1 1 year, without water,...
In the present work some dehydration-induced responses at whole plant and cellular levels were evaluated in three Vigna genotypes (V. glabrescens, Vg; V. unguiculata cv. EPACE-1; 1183) from different origins. Changes leaf stomatal conductance (gs), membrane lipids composition abscisic acid (ABA) content determined under water stress. Membrane integrity was assessed through discs dehydration with polyethylene glycol (PEG 8000, -1.3 MPa), expressed as an injury index (I%).. EPACE-1 1183, rapid...
The understanding of acclimation strategies to low temperature and water availability is decisive ensure coffee crop sustainability, since these environmental conditions determine the suitability cultivation areas. In this context, impacts single combined exposure drought cold were evaluated in three genotypes two major cropped species, Coffea arabica cv. Icatu, canephora Apoatã, hybrid Obatã. Crucial traits plant resilience stresses have been examined: photosynthesis, lipoperoxidation...
Abstract Growing water restrictions associated with climate changes constitute daunting challenges to crop performance. This study unveils the impacts of moderate (MWD) or severe (SWD) deficit, and their interaction air [CO2], on photosynthetic apparatus Coffea canephora Pierre ex A. Froehner cv. Conilon Clone 153 (CL153) arabica L. Icatu. Seven year-old potted plants grown under 380 (aCO2) 700 μl l −1 (eCO2) [CO2] gradually reached predawn potentials between −1.6 −2.1 MPa (MWD), below −3.5...
This study unveils the single and combined drought heat impacts on photosynthetic performance of
Coffea arabica L. is as a tropical crop that can be grown under monocrop or agroforestry (AFS) systems, usually at altitudes greater than 600 m, with suitable environmental conditions to bean quality. This study aimed assess the effect of altitude (650, 825, and 935 m) light (deep shade—DS, moderate shade—MS provided by native trees, full Sun—FS) on physical chemical attributes green coffee beans produced in Gorongosa Mountain. Regardless altitude, (mainly MS FS) scarcely affected most...
The impact of moderate water deficit on the photosynthetic apparatus three Phaseolus vulgaris L. cultivars, Plovdiv 10 (P10), Dobrudjanski Ran (DR) and Prelom (Prel), was investigated. Water shortage had less leaf hydration, RWC (predawn midday) predawn potential in Prel. Ψ(p) were more reduced P10, while there no osmotic adjustment any cultivar. Although drought drastically stomatal opening P10 DR, A(max) indicated non-stomatal limitations that contributed to negligible P(n). These...
To search for culturable Burkholderia species associated with annual ryegrass in soils from natural pastures Portugal, plant growth‐promoting effects. Annual seedlings were used to trap two different laboratory conditions. A combined approach using genomic fingerprinting and sequencing of 16S rRNA recA genes resulted the identification strains belonging graminis, fungorum cepacia complex. Most able solubilize mineral phosphate synthesize indole acetic acid; some them could produce...
SUMMARY Selenium (Se) is an essential micronutrient for humans, yet its dietary intake low, mostly due to the low bioavailability in soils and therefore edible plant tissues. To overcome Se deficiency, breeding approach ( i.e ., genetic biofortification), namely rice, largely dependent on available pools. ensure success of biofortification with Se, agronomic can be accomplished through foliar application. Considering this background, main hypothesis work was centered application attain rice...
The atmosphere CO2 concentration increased from ca. 280, prior to the Industrial Revolution up 400 μL L-1 in our days, rising nearly 2 ppm per year actually. Intergovernmental Panel on Climate Changes (IPCC) estimates at end of 21st century [CO2] could reach values between 445 and 1130 L-1, with a potential impact global temperature changes water availability: These will have major agricultural ecological implications. Here are presented some perspectives concerning impacts these...
An unexpected heat resilience, and the mitigation of impacts by elevated [CO2] were recently reported in Coffea spp. Plants must maintain membrane fluidity integrity to cope with temperature changes, which requires an adequate lipid dynamics. This work provides profile (galactolipids, GL; phospholipids, PL; sulfolipids, SL) chloroplast membranes, expression a set genes related metabolism arabica L. (cv. Icatu IPR108) C. canephora cv. Conilon CL153, under (380 or 700 μL L−1), (25/20, 31/25,...
This study aimed to assess the efficiency of Ca enrichment in tubers three genotypes Solanum tuberosum L., through foliar spraying with CaCl2 and Ca(NO3)2 solutions. In this context, soil heterogeneity potato-growing fields, as well implications accumulation among tissues some quality parameters were assessed. Three potato varieties (Agria, Picasso Rossi) grown production fields during life cycle, four pulverizations calcium chloride (3 6 kg ha−1) or nitrate (0.5, 2 4 applied. For screening...
Cowpea (Vigna unguiculata) is a robust legume; nevertheless, yield always affected by drought, especially when it occurs during reproductive growth and seed filling. Considered key crop in the effort to attain food security, suitable for scenario of climate change, modern disregard cowpea landraces particularly detrimental as causes genetic variability loss, compromising breeding efforts. To contribute evaluation germplasm, four Portuguese (L1, L2, L3, L4) were compared with commercial...