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The Formation and Fate of Tetrahymena patula Cryptostomes
Author(s) -
GABE PHILIP R.,
WILLIAMS NORMAN E.
Publication year - 1982
Publication title -
the journal of protozoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 0022-3921
DOI - 10.1111/j.1550-7408.1982.tb02873.x
Subject(s) - tetrahymena , resorption , biology , distilled water , morphogenesis , biological dispersal , isolation (microbiology) , anatomy , microbiology and biotechnology , chemistry , biochemistry , chromatography , medicine , population , environmental health , endocrinology , gene
A reliable method for producing reproductive cysts in Tetrahymena patula is described. The procedure involves the isolation of macrostomes without cytopharyngeal pouches in microdrops of distilled water under oil. The study of silver‐impregnated specimens has shown that a complex pattern of oral resorption and reformation occurs within the cyst that leads to the formation of a group of small cells with recessed oral apparatuses. These cells, called “cryptostomes,” swim very rapidly on excystment and are incapable of either feeding or reproducing. They are presumably dispersal forms. Oral morphogenesis during the transformation of excysted cryptostomes into microstomes and macrostomes is also described.