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Trends Plant Sci. 2004 Nov;9(11):534-40.

Performing the paradoxical: how plant peroxidases modify the cell wall.

Author information

1
Laboratory of Plant Physiology, University of Geneva, Quai Ernest-Ansermet 30, CH-1211 Geneva 4, Switzerland.

Abstract

Since their appearance in the first land plants, genes encoding class III peroxidases have been duplicated many times during evolution and now compose a large multigene family. The reason for these many genes is elusive, and we are still searching for the specific function of every member of the family. Nevertheless, our current understanding implicates peroxidases as key players during the whole life cycle of a plant, and particularly in cell wall modifications, in roles that can be antagonistic depending on the developmental stage. This diversity of functions derives in part from two possible catalytic cycles of peroxidases involving the consumption or release of H(2)O(2) and reactive oxygen species (e.g. O(2)(-), H(2)O(2), OH).

PMID:
15501178
DOI:
10.1016/j.tplants.2004.09.002
[Indexed for MEDLINE]

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