Dunaliella salina

Definition

Dunaliella salina is a type of halophilic green microalgae that thrives in high-salinity environments. It is known for producing large amounts of carotenoids, particularly beta-carotene.

5 Must Know Facts For Your Next Test

1. Dunaliella salina can tolerate extreme salt concentrations, sometimes exceeding 30% NaCl.
2. This microalga is often found in salt evaporation ponds and hypersaline lakes.
3. Dunaliella salina is utilized in biotechnology for the production of beta-carotene, which has commercial value as a dietary supplement and food colorant.
4. The organism can survive under high light intensities by synthesizing protective pigments like carotenoids.
5. It has a flexible cell wall that allows it to withstand osmotic pressure changes in varying saline conditions.

Related terms

Halophile: An organism that thrives in high-salt environments.

Beta-Carotene: A red-orange pigment found in plants and fruits, important as a precursor of vitamin A.

Osmotic Pressure:

The pressure required to prevent the flow of water across a semipermeable membrane due to osmosis.