opisthe Biol.
(əʊˈpɪsθiː, əʊˈpiːst)
[a. F. opisthe (Chatton & Lwoff 1936, in Arch. de Zool. expér. et gén. LXXVIII. 85), f. Gr. ὄπισθεν behind.]
In ciliate protozoa, the posterior of the two organisms formed by transverse fission. Cf. proter.
| 1950 A. Lwoff Probl. Morphogenesis Ciliates xi. 74 (caption) The peristome of the opisthe is formed from one kinetosome. 1961 Mackinnon & Hawes Introd. Study Protozoa iv. 214 At fission the organism [sc. a ciliate] divides to produce 2 daughters, an anterior proter and a posterior opisthe. 1977 Jrnl. Protozool. XXIV. 23/2 There is a need for enlargement or formation of oral parts such as..enlargement of oral structures in young opisthes. |