what is dunaliella salina
 studied the mitochondrial and plastid genome of D. salina. Dunaliella Salina Extract is an extract of the alga, Dunaliella salina. Attempts have been made to exploit the high concentrations of glycerol accumulated by D. salina as the basis for the commercial production of this compound. The D. salina zygote is extraordinarily hardy and can survive exposure to fresh water and to dryness. Ruggell: A.R.A. Glycerol is produced through two metabolic processes: intracellular synthesis through a photosynthetic product and metabolism of starch in the cell . Skin Nourishment and moisturizing Dunaliella Salina contains effective mineral high concentration of … Rejuvenal healthy aging, n.d. Dunaliella salina is a model organism to study the effects of saline adaptation in algae . In addition, Smith et al. Tammam A., Fakhry E. and El-Sheekh M. “Effect of salt stress on antioxidant system and the metabolism of the reactive oxygen species in Dunaliella saline and Dunaliella tertiolecta.” African 1981;23:1267–1287. “Effect of salinity on sexual activity of Dunaliella salina (Dunal) Teodoresco, strain CONC-006.” Revista Chilena de Historia Natural, 1995. Borowitzka, M.J. & Siva, C.J. DOI: 10.1016/0960-8524(91)90162-D, 5. Cancer: Ingredients linked to cancer in government, … Can J Bot. Just like other forms of algae, it is an aquatic organism that grows in salt water. Kumudha A, Sarada R. Characterization of vitamin B12 in. The ability to tolerate high salt concentrations is advantageous, since competition is minimal as salt high salt concentrations. Dunaliella salina is a type of halophile pink micro-algae especially found in sea salt fields. What is Dunaliella? Although there is a much greater abundance of D. salina, the red pigments on the cell membrane of archaea are more visibly accessible. “Effects of Salts on Halophilic Alga Dunaliella viridis.” Journal of Bacteriology, 1968. 1964;42:777–778. doi: 10.1146/annurev.mi.37.100183.000523. Dunaliella salina is a type of halophile green micro-algae (phytoplankton) especially found in sea salt fields.  Different technologies are used, from low-tech extensive cultivation in lagoons to intensive cultivation at high cell densities under carefully controlled conditions. To survive, these organisms have high concentrations of β-carotene to protect against the intense light, and high concentrations of glycerol to provide protection against osmotic press… High extracellular salt concentration drives the synthesis of glucose. 10. Thus, Dunaliella salina is a hyper-halotolerant organism found in high densities in saline lakes. 12. Volume 3: Chlorophyta. 6.3.2 Spacing between electrodes. Web. 1989;27:221–6. Journal of Phycology 47(6): 1454-1460. 13. DOI: 10.1186/1471-2229-10-83. Dunaliella salina is a unicellular green alga found in environments with high salt concentration . Though D. salina can survive in salinic environments, Martinez et al. What is Dunaliella salina? Osmotic stress affects enzyme activity of key enzymes of the glycerol metabolic pathway: glycerol-3-phosphate dehydrogenase, glycerol-3-phosphate phosphatase, dihydroxyacetone reductase, and dihydroxyacetone kinase. Chen BJ, Chi CH. Dunaliella salina is a special type of microalga. After germination, the zygotes release up to 32 haploid daughter cells. 22 Nov. 2012. DOI: 10.5897/AJB10.2392. Craigie JS, McLachlan J. Glycerol as a photosynthetic product in Dunaliella tertiolecta Butcher. Schilipaulis L. “The Extensive Commercial Cultivation of Dunaliella.” Bioresource Technology, 1991. It possesses Antioxidant, Antiinflammatory, Photoprotection, Antiproliferative … This offers an opportunity for commercial biological production of these substance. Amsterdam: Elsevier; 1980. pp. Dunaliella salina was thought to be responsible for the red colouring of salted brines . Dunaliella sp. Dunaliella Salina Powder is obtained by Dunaliella salina through multiple processings. Sexual reproduction, the formation of two gametes into a zygospore, is affected by salt concentrations. Massjuk, N.P. Few organisms can survive like D. salina does in such highly saline conditions as salt evaporation ponds. utilizing the 18S rDNA gene.” Letters in Applied Microbiology, 2000. Web. Food Chem Toxicol. Dunaliella salina can reproduce asexually, sexually and through division of motile vegetative cells. He initially named the organism Haematococcus salinus and Protococcus. The GC content of "D. salina" is relatively low compared to other Chlamydomonadales at 34.4% for mitochondrial DNA and 32.1% for plastid DNA. Journal of Applied Phycology 19: 567-590. Glycerol is a compatible solute in which not only contributes to osmotic balance of the cell but also maintains enzyme activity (Brown as stated in Oren). To survive, these organisms have high concentrations of β-carotene to protect against the intense light, and high concentrations of glycerol to provide protection against osmotic pressure. 22 Nov 2012. They are contained in the chloroplasts in lipid globules. Journal of Biotechnology, 2011. & Lilitska, G.G. Thus, while D. salina live in high salt concentrations, they maintain a relatively low concentration of sodium inside . 2. Brock T. “Salinity and the Ecology of Dunaliella from Great Salt Lake.” Journal of General Microbiology, 1975. Dunaliella salina is a microalga in the green algae family. Oren A. and Rodriguez-Valera F. “The contribution of halophilic Bacteria to the red coloration of saltern crystallizer ponds.” FEMS Microbiology Ecology, 2001. Chen H., Lu Y. and Jiang J. Known for its antioxidant activity because of its ability to create large amount of carotenoids, it is used in cosmetics and dietary supplements. In addition, the role of glycerol in D. salina as a key organic compatible solute has been used as a … Dunaliella Salinais a green algae best known for turning lakes red around the world. In addition, the role of glycerol in D. salina as a key organic compatible solute has been used as a research model .  found that both genomes are highly occupied with introns: mitochondrial DNA (58%) and plastid DNA (65.5%). Dunaliella is a unicellular, bi-flagellate, naked green alga (Chlorophyta, Chlorophyceae). 17. 1983;37:95–119. DOI: 10.5772/19046. “Comparative Analysis on the Key Enzymes of the Glycerol Cycle Metabolic Pathway in Dunaliella salina under Osmotic Stresses.” PLoS ONE, 2012, DOI: Dunaliella salina It’s an halophile microalga that grow in high salt concentrations, this fact reduces drastically the possibilities that pathogenic microorganisms can grow up. Dunaliella salina is a type of one-celled green microalgae which was first discovered in 1838 in Southern France. Smith D., Lee R., Cushman J., Magnuson J., Tran D. and Polle J.” The Dunaliella salina organelle genomes: large sequences, inflated with intronic and intergenic DNA.” BMA Plant Biology, 2010. However, despite the positive contributions of D. salina, commercial production is limited due to the low productivity of β-carotene . What is Dunaliella Salina? (2011). Dunaliella salina is nature's richest source of natural beta-carotene, each gram contains around10-20mg of beta-carotene, plus other carotenoids and nutrients.Research shows that natural dietary beta … doi: 10.1002/bit.260230608. Dunaliella has two flagella of equal length and has a single cup-like chloroplast that often contains a central pyrenoid. The genus was first described by Teodoresco (Teodoresco, 1905) with the type of species being Dunaliella salina, and … Dunaliella salina and Dunaliella bardawil are the most important species for β-carotene production; however, other pigments and compounds like lutein, chlorophyll, glycerol, and polyunsaturated fatty acids are also produced by these and other Dunaliella … So pink, in fact, that it makes this salt lake in western Australia look like it’s made of … Michel Felix Dunal first discovered "D. … Olmos et al. It produces a distinct pink and red colour often characteristic of saltern ponds . In order to maximize β-carotene production, D. salina should be grown in 1.5M to 3.0 M NaCl concentration until a stable cell density is reached then increased to 4.4 – 5.0 M NaCl concentration for maximum carotenoid production . Although the biochemistry and physiology of D. salina has been researched, much about the genome was unknown until Smith et al. It acts as a powerful antioxidant for skin. This page was last edited on 7 June 2020, at 19:54. Farhat et al. Dunaliella Salinais a green micro-algae typically found in sea salt fields around the world. Dunaliella salina extract is also a natural source of vitamin B12.
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