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REVIEW: Structural–Functional Features of Plant Isoperoxidases

I. V. Maksimov*, E. A. Cherepanova, G. F. Burkhanova, A. V. Sorokan’, and O. I. Kuzmina

Institute of Biochemistry and Genetics, Ufa Scientific Center, Russian Academy of Sciences, pr. Oktyabrya 71, 450054 Ufa, Russia; fax: (3472) 356-088; E-mail: phyto@anrb.ru

* To whom correspondence should be addressed.

Received January 22, 2011; Revision received February 8, 2011
Current data on structural–functional features of plant peroxidases and their involvement in functioning of the pro-/antioxidant system responding to stress factors, especially those of biotic origin, are analyzed. The collection of specific features of individual isoforms allows a plant to withstand an aggressive influence of the environment. Expression of some genes encoding different isoperoxidases is regulated by pathogens (and their metabolites), elicitors, and hormone-like compounds; specific features of this regulation are considered in detail. It is suggested that isoperoxidases interacting with polysaccharides are responsible for a directed deposition of lignin on the cell walls, and this lignin in turn is concurrently an efficient strengthening material and protects the plants against pathogens.
KEY WORDS: peroxidases, genes, expression, structural–functional features, pathogens, resistance

DOI: 10.1134/S0006297911060010