On the Factors Which Determine Massive beta-Carotene Accumulation in the Halotolerant Alga Dunaliella bardawil.

@article{BenAmotz1983OnTF,
  title={On the Factors Which Determine Massive beta-Carotene Accumulation in the Halotolerant Alga Dunaliella bardawil.},
  author={A. Ben-Amotz and M. Avron},
  journal={Plant physiology},
  year={1983},
  volume={72 3},
  pages={
          593-7
        }
}
Dunaliella bardawil, a beta-carotene-accumulating halotolerant alga, has been analyzed for the effect of various growth conditions on its pigment content, and compared with Dunaliella salina, a beta-carotene nonaccumulating species. In D. bardawil, increasing light intensity and light period or inhibiting growth by various stress conditions such as nutrient deficiency or high salt concentration caused a decrease in the content of chlorophyll per cell and an increase in the amount of beta… Expand
Carotenoid and fatty acid metabolism in nitrogen-starved Dunaliella salina, a unicellular green microalga.
Nitrogen availability and light intensity affect β-carotene overproduction in the green alga Dunaliella salina. Following a previous study on high-light stress, we here report on the effect ofExpand
Effect of light quality on carotenogenic and non-carotenogenic species of the genus Dunaliella under nitrogen deficiency
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Photosynthetic characteristics of Dunaliella salina with high (red form) and low β-carotene (green form) concentrations were studied. D. salina growing in brine saltworks exhibited a high level ofExpand
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An isolated Dunaliella salina strain from northern Thailand was cultured in modified Johnson’s medium in column photobioreactor. The beta-carotene accumulation mainly depended on the quantities ofExpand
beta-carotene production enhancement by UV-A radiation in Dunaliella bardawil cultivated in laboratory reactors.
beta-carotene is an antioxidant molecule of commercial value that can be naturally produced by certain microalgae that mostly belong to the genus Dunaliella. So far, nitrogen starvation has been theExpand
beta-carotene production enhancement by UV-A radiation in Dunaliella bardawil cultivated in laboratory reactors.
beta-carotene is an antioxidant molecule of commercial value that can be naturally produced by certain microalgae that mostly belong to the genus Dunaliella. So far, nitrogen starvation has been theExpand
Phytoene and phytofluene overproduction by Dunaliella salina using the mitosis inhibitor chlorpropham
Abstract The halotolerant chlorophyte microalga, Dunaliella salina, is one of the richest sources of carotenoids and will accumulate up to 10% of the dry biomass as β-carotene, depending on theExpand
Effect of Irradiance and Nutrient Deficiency on the Chemical Composition of Dunaliella bardawil Ben-Amotz and Avron (Volvocales, Chlorophyta)
Summary Dunaliella bardawil , a beta-carotene accumulating halotolerant alga, has been analyzed for the effect of nutrient deficiency and irradiance on its pigment content and gross chemistry. OneExpand
Effect of salinity on the quantity and quality of carotenoids accumulated by Dunaliella salina (strain CONC-007) and Dunaliella bardawil (strain ATCC 30861) Chlorophyta.
Dunaliella salina and D. bardawil are well-known microalgae accumulating high levels of beta-carotene under growth-limiting conditions. In both taxa, this pigment is primarily composed of the isomersExpand
Influence of areal density on β-carotene production by Dunaliella salina
High irradiance is probably the most important factor responsible for the massive accumulation of β-carotene by the halotolerant green alga Dunaliella salina. Operating outdoor cultures at optimalExpand
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References

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ACCUMULATION OF β‐CAROTENE IN HALOTOLERANT ALGE: PURIFICATION AND CHARACTERIZATION OF β‐CAROTENE‐RICH GLOBULES FROM DUNALIELLA BARDAWIL (CHLOROPHYCEAE) 1
TLDR
It is suggested that the β‐carotene globules may serve to protect D. bardawil against injury by the high intensity irradiation to which this alga is usually exposed in nature. Expand
Adaptation of the Photosynthetic Apparatus of Scenedesmus obliquus to Strong and Weak Light Conditions
TLDR
Homocontinuous cultures of the unicellular green alga Scenedesmus obliquus were grown under strong and weak light conditions to simulate the conditions of ‘sun’ and ‘shade’ plants, and cells adapted to strong light had less chlorophyll but demonstrated a higher photosynthetic capacity and a higher respiration rate. Expand
Glycerol and ß-carotene metabolism in the halotolerant alga Dunaliella: a model system for biosolar energy conversion
TLDR
The production of large amounts of glycerol and s-carotene by Dunaliella has made it a model organism to study the biological utilization of solar energy in the production of chemicals of industrial interest. Expand
Carotenoids and biliproteins