Abstract
PROTOZOA of the order Heliozoa are provided with numerous straight radiating processes known as axopods, which in certain genera (Actinophrys, Actinosphaerium) are known to be supported by axial filaments consisting of microtubules in elaborate array. In transverse section across an axopod these microtubules are seen to form two sheets spirally interwound (Fig. 1)1–3.
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MACDONALD, A., KITCHING, J. Axopodial Filaments of Heliozoa. Nature 215, 99–100 (1967). https://doi.org/10.1038/215099a0
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DOI: https://doi.org/10.1038/215099a0
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