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Dunaliella (done-al-ee-ella), a solitary volvocid (flagellated green algal cell). Cell surrounded by a cellulosic wall, with two similar flagella emerging from near the apex. The photosynthetic pigments are located within a cup-shaped chloroplast which has a large pyrenoid with associated polysaccharide materials located posteriorly. The nucleus is located within the cup. From marine and usually hypersaline habitats, grown commercially because of the tendency to produce large quantities of beta carotene when intensely illuminated. Differential interference contrast.
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Dunaliella (done-al-ee-ella), a solitary volvocid (flagellated green algal cell). Cell surrounded by a cellulosic wall, with two similar flagella emerging from near the apex. The photosynthetic pigments are located within a cup-shaped chloroplast which has a large pyrenoid with associated polysaccharide materials located posteriorly. The nucleus is located within the cup. From marine and usually hypersaline habitats, grown commercially because of the tendency to produce large quantities of beta carotene when intensely illuminated. Differential interference contrast.
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Dunaliella is a green alga and is a common member of the phytoplankton in salty water bodies. These cells were abundant in a collection taken at the margins of Mono lake (at Navy Beach). Each cell has a cup-shaped or bowl-shpaed chloroplast at the posterior end of the cell, aneriorly they have two equally long flagella. Differential interference contrast optics.
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This is an un-named species of Dunaliella, a green alga and member of the phytoplankton that is often associated with hypersaline conditions. The chloroplast is bowl-shaped and fills the base of the cell. There is a yellowy eyespot to the left side of the plastid in this image. The nucleus with nucleolus lies near the front of the cell. There are two equally long flagella which beat in a breast-stroke motion. Phase contrast micrograph.
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This image is of a sea-water lagoon in Western Australia. The water is red because of the very large numbers of Dunaliella salina, a green alga that is commercially harvested for carotenes as food additives and coloring agents.
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Dunaliella (done-al-ee-ell-a) tertiolecta, one of the marine volvocid flagellates with two similar flagella inserted at the apex of the cell. No wall or theca. Eyespot to the left. Often found in salt marshes or sites of high salinity, some species in this genus produce carotenes and are farmed commercially for these compounds. Phase contrast.
data on this strain.
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Dunaliella (done-al-ee-ell-a) tertiolecta, one of the marine volvocid flagellates with two similar flagella inserted at the apex of the cell. No wall or theca. Eyespot to the right. Cup-shaped green chloroplast. Often found in salt marshes or sites of high salinity, some species in this genus produce carotenes and are farmed commercially for these compounds. Differential interference microscopy.
data on this strain.
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Phase contrast image of ATCC 30929.
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Phase contrast image of ATCC 30929.
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