Electron microscopy; proceedings of the Stockholm Conference, September, 1956 . electronmicrosco00euro Year: 1957 The Pharyngeal Protein Fibres of the Ciliates Ch. Rouiller, E. Faure-Fremiet and M. Gauchery Laboratoires d'Enibryologie experiinentale et cle Medecine experimentale dii College de France, Paris; Iiistitiit de Recherches siir le Cancer Gustave Ronssy, Villejuif 1 HE Ciliates are distinguished amongst unicellular organisms by the diversity and complexity of their cytoplasmic differentiations. Electron microscopy allows us to make new studies both of the ultrastruc- ture and compara
Electron microscopy; proceedings of the Stockholm Conference, September, 1956 . electronmicrosco00euro Year: 1957 The Pharyngeal Protein Fibres of the Ciliates Ch. Rouiller, E. Faure-Fremiet and M. Gauchery Laboratoires d'Enibryologie experiinentale et cle Medecine experimentale dii College de France, Paris; Iiistitiit de Recherches siir le Cancer Gustave Ronssy, Villejuif 1 HE Ciliates are distinguished amongst unicellular organisms by the diversity and complexity of their cytoplasmic differentiations. Electron microscopy allows us to make new studies both of the ultrastruc- ture and comparative morphology of various orga- nites such as myoid fibres and certain skeletal appa- ratus (3-9). Among the latter, we will examine here protein fibres which in the Gymnostomata and some Hypo- W stomata form below the mouth, in the endoplasm, a pharyngeal framework guiding the introduction of ingesta. The properties of these rigid and elastic fibres, birefringent and easily stained with mercuric bromophenol blue, are readily comparable to certain scleroprotein. In the prostomal and pleurostomal Gymnosto- mata (called Rhabdophorina by Corliss (1), from Faure-Fremiet (2)) this framework is built up from ^ .^- ,r- w • > .« * •! A V /: ^
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