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Journal of Cell Science, Vol 10, 95-122, Copyright © 1972 by Company of Biologists

Submitted on May 26, 1971

Structure and Coiling of the Stalk in the Peritrich Ciliates Vorticella and Carchesium

W. B. AMOS 1

1 The Department of Zoology, Downing Street, Cambridge, England

The stalk of Carchesium and Vorticella coils by the action of a contractile organelle. The organelle lies within a thread of cytoplasm which is encased in a complex extracellular tube. Study with the light microscope and the electron microscope suggests that the structure of the tube and the course of the organelle determine the form of the coiling. The contractile organelle contains a system of interconnected membranous tubules and the cytoplasm around it also contains membranous saccules. Both tubules and saccules extend along the length of the stalk.

Submitted on May 26, 1971




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© The Company of Biologists Ltd 1972