Open AccessTemporal regulation of cell-wall pectin methylesterase and peroxidase isoforms in cadmium-treated flax hypocotyl
Author(s) -
Florence Paynel,
Annick Schaumann,
Mustapha Arkoun,
Olfa Douchiche,
Claudine Morvan
Publication year - 2009
Publication title -
annals of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.567
H-Index - 176
eISSN - 1095-8290
pISSN - 0305-7364
DOI - 10.1093/aob/mcp254
Subject(s) - linum , pectin , peroxidase , hypocotyl , cell wall , biology , cadmium , elongation , biochemistry , plant cell , botany , gene isoform , microbiology and biotechnology , enzyme , biophysics , chemistry , ultimate tensile strength , gene , organic chemistry , materials science , metallurgy
In hypocotyls of flax (Linum usitatissimum) cadmium-induced reorientation of growth (i.e. an increase in expansion and a decrease in elongation) coincides with marked changes in the methylesterification and cross-linking of homogalacturonans within various cell-wall (CW) domains. The aim of the present study was to examine the involvement of pectin methylesterase (PME) and peroxidase (PER) in this cadmium-induced CW remodelling.
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