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Colchicine Effects on Microtubules and Membrane Movements in the Cytoproct-to-Cytopharnyx Region of Paramecium Caudatum

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Title: Colchicine Effects on Microtubules and Membrane Movements in the Cytoproct-to-Cytopharnyx Region of Paramecium Caudatum
Authors: Azume, Venon
Advisor: Allen, Richard
Issue Date: 15 Jan 2014
Publisher: University of Hawaii at Manoa
Abstract: Microtubules, within the past decade, have received a great deal of interest from numerous investigators. Occurring in almost all eucaryotic cells (Slautterbach, 1963; Porter, 1966), these organelles have been implicated in many cell processes. They appear to function in the development and maintenance of cell form (Byers and Porter, 1964; Arnold, 1966), appearing, for example, in the frame- work of cilia and flagella and in the cortical ridges of ciliates and flagellates (Sommer, 1965; Allen, 1967), in neurons (Peters and Vaughn, 1967; Porter, 1966), and in the mitotic spindle (Kane, 1967). In morphology, microtubules have a tubular cross-section. They are 210-250 A in diameter (Tilney, 1968) and can be resolved into 12-13 protofilaments which in turn can be resolved into rows of globular subunits about 40 A wide (Grimston and Klug, 1966; Kieffer, et al., 1966). In negatively stained preparations, microtubules tend to break rather than bend under excessive stress.
Pages/Duration: 46 pages
URI/DOI: http://hdl.handle.net/10125/31918
Rights: All UHM Honors Projects are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner.
Appears in Collections:Honors Projects for Biology



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