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Short Video: Dinoflagellate

by Pearson
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Locomotion in the dinoflagellate protist Peridinium, shown in this clip, occurs by flagella and is typical of many dinoflagellates. Compared to the cell's body length, flagella are long and are less numerous than cilia, which some other groups of protists use for locomotion. Most flagellated cells have only one or two flagella. Each Peridinium cell has a posterior flagellum that provides forward motion, and another flagellum located in a groove that wraps around, or girdles, the equatorial region of the cell. Although the girdle flagellum is difficult to see, it contributes to the cell's rotating or gyrating motion as it moves through the water. The word dino- comes from the Greek, meaning to whirl. Credit: Courtesy of Graham R. Kent and Rebecca L. Turner, Smith College.
Locomotion in the dinoflagellate protist Peridinium, shown in this clip, occurs by flagella and is typical of many dinoflagellates. Compared to the cell's body length, flagella are long and are less numerous than cilia, which some other groups of protists use for locomotion. Most flagellated cells have only one or two flagella. Each Peridinium cell has a posterior flagellum that provides forward motion, and another flagellum located in a groove that wraps around, or girdles, the equatorial region of the cell. Although the girdle flagellum is difficult to see, it contributes to the cell's rotating or gyrating motion as it moves through the water. The word dino- comes from the Greek, meaning to whirl. Credit: Courtesy of Graham R. Kent and Rebecca L. Turner, Smith College.