. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIGURE 7. (A) Diagram of an intact cortical singlet microtubule as it appears following negative staining with PTA. The center-to-center spacing between adjacent white bands in this, as in (B), (C) and (D), is 80 A; (B) Helically arranged ovoid subunits, joined end to end along the length of the protofibrils, as they might appear following negative staining; (C) and (D) Helically arranged globular subunits with alternating subunits slightly displaced to- ward the lumen of the microtubule, either parallel to the long axis of
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIGURE 7. (A) Diagram of an intact cortical singlet microtubule as it appears following negative staining with PTA. The center-to-center spacing between adjacent white bands in this, as in (B), (C) and (D), is 80 A; (B) Helically arranged ovoid subunits, joined end to end along the length of the protofibrils, as they might appear following negative staining; (C) and (D) Helically arranged globular subunits with alternating subunits slightly displaced to- ward the lumen of the microtubule, either parallel to the long axis of the microtubule (C) or nested among the outer subunits (D). possible models that could explain the presence of the alternating electron-lucent and electron-opaque bands which repeat at intervals of ca. 80 A along the length of the microtubule (Fig. 7A). One such alternative is based on the assumption that the walls of the microtubules are made up of ovoid subunits which are ca. 80 A in length and joined end to end along the length of the protofibrils (Fig. 7B). In the region in which contact between adjacent subunits occurs, a slight. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
