ISSN:
1420-9071
Keywords:
Deleya halophila
;
oxidative stress
;
viability
;
protein synthesis
;
heat shock
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Abstract The sensitivity ofDeleya halophila to oxidative stress caused by hydrogen peroxide (H2O2) was found to vary, depending on the NaCl concentration of the growth medium. Pretreatment of the bacteria at a low concentration of H2O2 (50 μM) protected the cells against the lethal effects of higher levels (1–2 mM) of H2O2. Exposure ofD. halophila cells to 50 μM H2O2 resulted in the induction of several proteins (hydrogen peroxide-inducible proteins, hips). However, the kinetics of induction, the extent of induction and the number of hips appear to be influenced by the salt concentration of the growth medium. Five of the hips exhibited apparent molecular masses identical to those of five heat shock proteins (hsps).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01923607
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