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Effect of salt and osmotic stress upon expression of the ethylene receptor ETR1 in Arabidopsis thaliana
Author(s) -
Zhao Xue-Chu,
Schaller G.Eric
Publication year - 2004
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/s0014-5793(04)00238-8
Subject(s) - arabidopsis thaliana , arabidopsis , ethylene , osmotic shock , plant hormone , abiotic stress , receptor , signal transduction , microbiology and biotechnology , chemistry , abiotic component , biochemistry , gene expression , biophysics , biology , gene , ecology , mutant , catalysis
In hormone perception, varying the concentrations of hormone, receptor, or downstream signaling elements can modulate signal transduction. Previous research has demonstrated that ethylene biosynthesis in plants is regulated by abiotic factors. Here we report that exposure of Arabidopsis plants to NaCl reduced expression of the ethylene receptor ETR1. The change in gene expression was reflected at the protein level based on immunoblot analysis. Further analysis supports a general effect of osmotic stress upon the expression level of ETR1. The reduction in ETR1 levels should cause increased sensitivity of the plant to ethylene. These results suggest that plant responses to abiotic stress are modulated by changes in the expression level of ethylene receptors.