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Biogenic Amines Stimulate Regeneration of Cilia in Tetrahymena thermophila 1
Author(s) -
CASTRODAD FELIX A.,
RENAUD FERNANDO L.,
ORTIZ JULIO,
PHILLIPS DAVID M.
Publication year - 1988
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.1550-7408.1988.tb04340.x
Subject(s) - tetrahymena , cilium , multicellular organism , motility , regeneration (biology) , biology , microbiology and biotechnology , serotonin , hormone , biophysics , chemistry , cell , biochemistry , receptor
Serotonin and catecholamines affect the regeneration of cilia in Tetrahymena thermophila in a dose‐dependent manner: micromolar concentrations are stimulatory, whereas millimolar concentrations have little or no effect. This conclusion is based on motility measurements in regenerating cells and on ciliary counts in scanning electron micrographs. In addition, the recognition mechanism for each hormone appears to be specific and independent. Our results suggest an evolutionary link with hormonal mechanisms in multicellular eukaryotes.