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We report the isolation of striated flagellar roots from the Prasinophycean green alga Tetraselmis striata using sedimentation in gradients of sucrose and flotation on gradients of colloidal silica. PAGE in the presence of 0.1% SDS demonstrates that striated flagellar roots are composed of a number of polypeptides, the most predominant one being a protein(More)
A rapid, Ca2+-dependent change in the angle between basal bodies (up to 180 degrees) is associated with light-induced reversal of swimming direction (the "photophobic" response) in a number of flagellated green algae. In isolated, detergent-extracted, reactivated flagellar apparatus complexes of Spermatozopsis similis, axonemal beat form conversion to the(More)
Try to imagine a fast biological movement. Perhaps you visualize the twitch of an eye or the flicker of a boxer's jab. These movements may seem fast, but in this issue of Biophysical Journal, Up-adhyaya and colleagues take biological speed to a whole new level by analyzing the contractions of Vorticella, a wine-glass shaped ciliated protist (1). When a(More)
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