Abstract
Certain inhibitors of nucleic acid and protein synthesis, namely actinomycin D, mitomycin C, and puromycin, have been found to block the expression of a persistent daily rhythm of bioluminescence. The action does not inhibit luminescence per se but rather the rhythmicity. Exposure of the cells to these inhibitors for only a few hours, which might be expected to thereby delay the rhythm by a few hours, does not in fact have this effect. Chloramphenicol and amethopterin do not inhibit the rhythm. It is proposed that the functioning of the clock-like rhythmic mechanism depends upon the cell's normal ability to synthesize RNA.
Keywords
ACTINOMYCIN
ANTIBIOTICS
CHLORAMPHENICOL
EXPERIMENTAL LAB STUDY
LUMINESCENCE
MASTIGOPHORA
MITOMYCIN
PHARMACOLOGY
PUROMYCIN
MeSH Terms
Anti-Bacterial Agents
Chloramphenicol
Dactinomycin
Dinoflagellida
Eukaryota
Luminescence
Mitomycin
Pharmacology
Puromycin
RNA
Research
Chemicals
Anti-Bacterial Agents
Dactinomycin
Puromycin
Mitomycin
RNA
Chloramphenicol
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
KARAKASHIAN M W
HASTINGS J W
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22 references, click to expand
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