Reports

Substructure of Certain Cytoplasmic Microtubules: An Electron Microscopic Study

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Science  18 Nov 1966:
Vol. 154, Issue 3751, pp. 903-905
DOI: 10.1126/science.154.3751.903

Abstract

egatively stained cytoplasmic microtubules of lung-fluke sperm show a helical structure that is not found in peripheral doublet tubules of axial units. In transverse sections, the wall of such microtubules appears to comprise about eight subunits.