Summary
The structure and elemental composition of the granules which make up the parapharyngeal mass of the ciliateHomalozoon vermiculare are analyzed. The mass is made up of two kinds of granules. One is not membrane-bounded and is composed of paraglycogen. The second type is comprised of concentric lamellae. It is rich in magnesium, phosphorus, potassium, and calcium. These results do not support the contention that the granules are directly involved in the process of food vacuole formation. The role of the parapharyngeal mass remains obscure.
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Kuhlmann, S., Walz, B. & Hausmann, K. Characterization of the parapharyngeal mass of the ciliateHomalozoon vermiculare . Protoplasma 116, 209–212 (1983). https://doi.org/10.1007/BF01279841
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DOI: https://doi.org/10.1007/BF01279841