A5056848733- Algal biology and biofuel production
- Plant nutrient uptake and metabolism
- Plant Stress Responses and Tolerance
- Marine and coastal ecosystems
- Photosynthetic Processes and Mechanisms
- Plant Micronutrient Interactions and Effects
- Potato Plant Research
- Legume Nitrogen Fixing Symbiosis
- Soil Carbon and Nitrogen Dynamics
- Marine and coastal plant biology
- Mycorrhizal Fungi and Plant Interactions
- Plant responses to water stress
- Forest Ecology and Biodiversity Studies
- Enzyme-mediated dye degradation
- Allelopathy and phytotoxic interactions
- Plant tissue culture and regeneration
- Wastewater Treatment and Nitrogen Removal
- Nitric Oxide and Endothelin Effects
- Plant Gene Expression Analysis
- Food composition and properties
- Seaweed-derived Bioactive Compounds
- Biological Control of Invasive Species
- Crop Yield and Soil Fertility
- Plant Virus Research Studies
- Hemoglobin structure and function
University of Campania "Luigi Vanvitelli"
2007-2021
University of Naples Federico II
1988-2016
University of Reggio Calabria
1992-1995
Istituto Nazionale di Fisica Nucleare, Sezione di Napoli
1990
Institute of Genetics and Biophysics
1989
Stazione Zoologica Anton Dohrn
1989
Durum wheat plants are extremely sensitive to drought and salinity during seedling early development stages. Their responses stresses have been extensively studied provide new metabolic targets improving the tolerance adverse environments. Most of these studies performed in growth chambers under low light [300-350 µmol m-2 s-1 photosynthetically active radiation (PAR), LL]. However, nature face frequent fluctuations intensities that often exceed their photosynthetic capacity (900-2000 ). In...
• The aim of the paper was to determine nitrogen compounds contributing leaf cell osmoregulation spinach (Spinacia oleracea) submitted increasing salt stress. Sodium, free amino acids and glycine betaine contents were determined in last fully expanded plants stressed by daily irrigation with saline water (0.17 M NaCl). After 20 d treatment, when Na+ content c. 55 umol g-1 f. wt above control, reduction stomatal conductance lowered photosynthesis 60% leaves, especially serine, strongly...
We studied the effect of salinity on amino acid, proline and glycine betaine accumulation in leaves different stages development durum wheat under high low nitrogen supply. Our results suggest that protective compounds against salt stress are accumulated all leaves. The major metabolites betaine, which preferentially accumulates younger tissues, proline, is found predominantly older tissues. Proline tended to accumulate early, at onset stress, while was observed during prolonged stress....
Plants are currently experiencing increasing salinity problems due to irrigation with brackish water. Moreover, in fields, roots can grow soils which show spatial variation water content and salt concentration, also because of the type irrigation. Salinity impairs crop growth productivity by inhibiting many physiological metabolic processes, particular nitrate uptake, translocation assimilation. determines an increase sap osmolality from about 305 mOsmol kg-1 control 530 under salinity. Root...
Hordeum maritimum With. (= H. marinum Huds. subsp. marinum, 2n = 14) is a wild cereal present in the saline depressions of Soliman and Kelbia Sebkhas, which contributes significantly to annual biomass production Tunisia. This species able tolerate high NaCl concentrations at seedling stage without showing symptoms toxicity; however, tolerance strategy mechanisms this plant have not yet been unravelled. Our metabolite analysis, performed on leaves during extended stress comparison with...
The combined effects of nitrate (0, 0.1, 1, 10 mm) and salt 100 mm NaCl) on nitrogen metabolism in durum wheat seedlings were investigated by analysis reductase (NR) expression activity, metabolite content. High salinity (100 reduced shoot growth more than root growth. effect was independent concentration. NR mRNA present at a low level both leaves roots plants grown nitrogen-free medium. NaCl increased nitrate, suggesting that chloride can mimic as signal molecule to induce transcription...
In this study, we determined the effects of both salinity and high light on metabolism durum wheat (Triticum Desf. cv. Ofanto) seedlings, with a special emphasis potential role glycine betaine in their protection. Unexpectedly, it appears that treatment inhibits synthesis betaine, even presence salt stress. Additional solutes such as sugars especially amino acids could partially compensate for decrease its upon exposure to levels. particular, tyrosine content was strongly increased by light,...