plant phenolics have high reducing capacity which can be exploited in the synthesis of nanomaterials. in the present study, phytoreductant vanillic acid is used to produce and coat silver nanoparticles. the effects of ag nanoparticles on the unicellular green algae d. salina were then investigated. under optimum  ph and temperature, silver ions were reduced to silver metal by vanillic acid. the...

The purpose of the current work was to study the role of Dunaliella salina extract in ameliorating Alzheimer ́s disease (AD) in rat brain. Aluminium chloride (AlCl3) was orally administered to male albino rats (100mg/kg/day for six weeks), while, D. salina ethanolic extract (150mg/kg/day for six weeks) was orally administered post AlCl3 treatment. At the end of experiment, AlCl3 treatment marked...

Comparison of 18S rDNA gene sequences is a very promising method for identification and classification of living organisms. Molecular identification and discrimination of different Dunaliella species were carried out based on the size of 18S rDNA gene and, number and position of introns in the gene. Three types of 18S rDNA structure have already been reported: the gene with a size of ~1770 bp l...

A light-induced proton gradient (DeltapH) increase as exhibited by an increase of 9-aminoacridine fluorescence quenching is demonstrated between the external medium and the interior of the halophytic green alga Dunaliella salina. The formation and maintenance of the DeltapH is sensitive to electron transport inhibitors and to uncouplers. It is inhibited by p-chloromercuribenzenesulfonic acid (5...

Chemotactic properties of amino acids (L-alanine, glycine and L-lysine) and their oligopeptides (10(-6) M) and binding sites to these ligands were investigated in two unicellular models, the heterotrophic Tetrahymena pyriformis and the auxotrophic Dunaliella salina. Chemotaxis of Dunaliella induced by simple amino acids and their derivatives demonstrated that binding sites (receptors) for food ...

dunaliella is a green halotolerant microalga, which has several industrial applications e.g. β-carotene production. identification of different dunaliella species has been carried out by morpho-physiological and recently molecular studies. to achieve an improved understanding of taxonomy, these studies are required to be in linkage. the present study describes molecular and specific morpho-phys...

The price of aqua feed containing Dunaliella salina meal was calculated. Also, the formulated feed’s protein, lipid, and total carotenoid content were examined. shrimp D. higher than commercial with better protein in feed. This indicated that inclusion microalgae may increase coloration growth shrimp. We recommend using these fish aquaculture necessary investment production.
 Keywords: mic...

D. salina is one of the recognized natural sources to produce beta-carotene, and an useful model for studying the role of inhibitors and enhancers of carotenogenesis. However there is little information in D. salina regarding whether the isoprenoid substrate can be influenced by stress factors (carotenogenic) or selective inhibitors which in turn may further contribute to elucidate the early st...

The use of the saline microalgae, Dunaliella salina, Sinecosyfis sp., and Chroomonas sp., was explored as an alternative source for the production of fatty acids using fertilizer and glycerol as culture media. The nutrient medium used contained "Nutrifoliar," a commercial fertilizer, and/or glycerol, in natural sea water. The microalgae were placed in cultures with different conditions. The par...