Effects of hormones on the RNA-synthesis of Tetrahymena pyriformis

G. Csaba, L. Ubornyák

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Abstract

1. 1. Prednisolone, T3, serotonin and epinephrine were found to enhance the RNA synthesis of Tetrahymena pyriformis considerably, while thyroxine (T4) and histamine did so to a lesser degree. 2. 2. The curve (rate of synthesis) for hormonal action showed 2 peaks, a minor at 5 min and a major one at 30 min. 3. 3. The effects of triiodothyronine (T3) and (T4) differed considerably, the latter is much less active. 4. 4. The highest stimulatory effect was developed by serotonin; the cells exposed to it still showed an eightfold increase of newly synthesized RNA over the control after 2 hr.

Original languageEnglish
Pages (from-to)251-253
Number of pages3
JournalComparative Biochemistry and Physiology. Part C, Comparative
Volume68
Issue number2
DOIs
Publication statusPublished - 1981

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ASJC Scopus subject areas

  • Immunology
  • Pharmacology

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