Dunaliella salina is a type of halophile green micro-algae especially found in sea salt fields. Known for its antioxidant activity because of its ability to create large amount of carotenoids, it is used in cosmetics and dietary supplements.
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May 6, 2015March 17, 2021
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Morphology
Species in the genus Dunaliella are morphogically similar to Chlamydomonas reinhardtii with the main exception being that Dunaliella lack both a cell wall and a contractile vacuole. Dunaliella has two flagella of equal length and has a single cup-like chloroplast that often contains a central pyrenoid.
Lifecycle
Though D. salina can survive in salinic environments, Martinez et al. determined that sexual activity of D. salina significantly decreases in higher salt concentrations (>10%) and is induced in lower salt concentrations.
Anti-oxidant
Due to the abundance of β-carotene, which is an anti-oxidant as well as a vitamin A precursor, D. salina is a popular pro-vitamin A food supplement and cosmetic additive. D. salina may also be a source of vitamin B12
Glycerol
D. salina lacks a rigid cell wall, which makes the organism susceptible to osmotic pressure. Glycerol is used as a means by which to maintain both osmotic balance and enzymatic activity.