PMID: 2866877Jan 1, 1985

Induction of steroid binding sites (receptors) and presence of steroid hormones in the unicellular Tetrahymena pyriformis

Comparative Biochemistry and Physiology. A, Comparative Physiology
G CsabaT Fehér


The unicellular Tetrahymena does not normally possess a steroid hormone (dehydroepiandrosterone, DHEA) or a glucocorticoid (dexamethasone) receptor, but both kinds of receptor can be induced in it by pretreatment (imprinting) with the adequate hormone. The specific receptors which arise are demonstrable experimentally. Examination of Tetrahymena cells for endogenous steroids by the radioimmunoassay (RIA) technique detected an appreciable concentration of DHEA and DHEA sulphate, and lesser concentrations of testosterone and estradiol in this unicellular organism.


Feb 15, 1989·Experientia·G Csaba, A Inczefi-Gonda
Jun 1, 1991·In Vitro Cellular & Developmental Biology : Journal of the Tissue Culture Association·P O Lawrence
Dec 1, 1995·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·M Zakelj-MavricI Belic
Aug 11, 1992·The Journal of Steroid Biochemistry and Molecular Biology·S S RowlandN Bashirelahi
Jul 4, 2012·Acta Microbiologica Et Immunologica Hungarica·G Csaba
Sep 18, 2012·Acta Microbiologica Et Immunologica Hungarica·G Csaba
Feb 1, 1989·Bioscience Reports·P KovácsG Csaba
Mar 1, 2009·The Journal of Eukaryotic Microbiology·Begoña AyoJuan Iriberri

Related Concepts

Androgen Effect
Prasterone, 3 alpha-Isomer
Estradiol, (16 alpha,17 beta)-Isomer
Receptors, Steroid
Tetrahymena pyriformis

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