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A general response to stressors by the unicellular Tetrahymena: effect of stress on the hormone levels
Author(s) -
Csaba G.,
Pállinger Éva
Publication year - 2008
Publication title -
cell biochemistry and function
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.933
H-Index - 61
eISSN - 1099-0844
pISSN - 0263-6484
DOI - 10.1002/cbf.1508
Subject(s) - tetrahymena , formaldehyde , hormone , flow cytometry , alcohol , ethanol , general adaptation syndrome , chemistry , serotonin , biology , biochemistry , medicine , microbiology and biotechnology , receptor
Hormone (ACTH, endorphin, serotonin and T 3 ) content of the unicellular Tetrahymena was studied by using immunocytochemical and flow cytometry methods. The cells were previously treated with different concentrations of salts (NaCl or KCl for 1 h), were kept in low (+4°C) or high (+37°C) temperature for 1 h and were treated with formaldehyde or ethanol. High concentrations of salts (20 mg ml −1 medium), all levels (0.1, 0.05, 0.01%) of formaldehyde and high temperature almost doubled the hormone contents and 0.1% alcohol also significantly elevated them. The experiments call attention to the presence of a general adaptation syndrome (GAS)‐like phenomenon at a unicellular level and points to the possibility of deduction of GAS to a low level of phylogeny. Copyright © 2008 John Wiley & Sons, Ltd.