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A homolog of the Arabidopsis thaliana ERS gene is actively regulated in Rumex palustris upon flooding
Author(s) -
Vriezen Wim H.,
Rijn Cynthia P.E.,
Voesenek Laurentius A.C.J.,
Mariani Celestina
Publication year - 1997
Publication title -
the plant journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.058
H-Index - 269
eISSN - 1365-313X
pISSN - 0960-7412
DOI - 10.1046/j.1365-313x.1997.11061265.x
Subject(s) - complementary dna , biology , arabidopsis thaliana , abscisic acid , botany , gene , biochemistry , mutant
A cDNA homologous to the ethylene‐response sensors (ERS/ETR1) from Arabidopsis thaliana was isolated from a Rumex palustris cDNA library. This cDNA, RP‐ERS1, was 2421 bp long and shared 66% nucleotide homology with ETR1 and ERS in their coding regions. The transcript level of RP‐ERS1 was actively regulated during the leaf‐elongation response of R. palustris upon flooding. RP‐ERS1 transcript levels increased after submergence, and also after exposure to high concentrations of ethylene and carbon dioxide and low concentrations of oxygen. These results suggest that R. palustris plants may respond to flooding stress by increasing the number of their ethylene receptors.

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