Positive stress or essential and nonessential elements can improve nutritive values (biofortification) of edible plants. In the present study, we evaluate (i) effect moderate salinity on lettuce biofortification, evaluated as nutritional bioactive compound accumulation, (ii) role iodine in enhancing salt tolerance by increasing photorespiration content antioxidants lettuce. Physiological (gas e...

Much of the life on earth depends on photosynthesis, a process in which electromagnetic solar energy is used to produce oxygen and carbohydrates from atmospheric CO2 and water. In plants and algae, the photosynthetic reactions are catalyzed by a system that includes several protein-pigment complexes embedded in the thylakoid membranes. These membranes consist of flattened vesicles that exist ei...

Much of the life on earth depends on photosynthesis, a process in which electromagnetic solar energy is used to produce oxygen and carbohydrates from atmospheric CO2 and water. In plants and algae, the photosynthetic reactions are catalyzed by a system that includes several protein-pigment complexes embedded in the thylakoid membranes. These membranes consist of flattened vesicles that exist ei...

Much of the life on earth depends on photosynthesis, a process in which electromagnetic solar energy is used to produce oxygen and carbohydrates from atmospheric CO2 and water. In plants and algae, the photosynthetic reactions are catalyzed by a system that includes several protein-pigment complexes embedded in the thylakoid membranes. These membranes consist of flattened vesicles that exist ei...

Radix Isatidis (Isatis indigotica Fort.) is one of the most important traditional Chinese medicine plants. However, there is no suitable herbicide used for weed control in Radix Isatidis field during postemergence stage. To explore the safety of sulfonylurea herbicide nicosulfuron on Radix Isatidis (Isatis indigotica Fort.) seedlings and the photosynthetic physiological response of the plant to...

Chlorophylis cl and c2 have been separted from total pigment extracts of the alg Pavlovagyras Butcher using a reversed-phae high-performance liquid chromatography system. Pigments were separated on a 5 micrometer Cl, column (25 centimeters x 4.6 millimeters) using a gadient ofmethanol-acetonitrile-water. Other photosynthetic pigments were also well resolved by the system used. The separation sy...

Much of the life on earth depends on photosynthesis, a process in which electromagnetic solar energy is used to produce oxygen and carbohydrates from atmospheric CO2 and water. In plants and algae, the photosynthetic reactions are catalyzed by a system that includes several protein-pigment complexes embedded in the thylakoid membranes. These membranes consist of flattened vesicles that exist ei...

The differential pigment composition and photosynthetic activity of sun and shade leaves of deciduous (Acer pseudoplatanus, Fagus sylvatica, Tilia cordata) and coniferous (Abies alba) trees was comparatively determined by studying the photosynthetic rates via CO(2) measurements and also by imaging the Chl fluorescence decrease ratio (R(Fd)), which is an in vivo indicator of the net CO(2) assimi...

Fine structure, pigment content and photosynthetic activity of variegated leaves of Euonymus fortunei var. radicans have been studied in detail. The middle dark-green leaf areas contain normal chloroplasts with large grana. Their chlorophyll content is high, as is their photosynthetic activity. The marginal leaf areas with mutant plastids are highly light-sensitive. When grown in the shade they...

Pigment composition and the pigment-protein complex of Symbionidium sp. strain Y106 isolated from the mantle lobe of Tridacna crocea were analyzed to investigate the photosynthetic machinery of this alga. High-performance liquid chromatography (HPLC) analysis was performed using a Waters Symmetry C8 column and a programmed binary gradient elution with a photodiode array detector. The pigments w...