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Specific functions of individual class III peroxidase genes

Open access
Cosio, C., Dunand, C.·2009·Journal of Experimental Botany

Abstract

In higher plants, class III peroxidases exist as large multigene families (e.g. 73 genes in Arabidopsis thaliana). The diversity of processes catalysed by peroxidases as well as the large number of their genes suggests the possibility of a functional specialization of each isoform. In addition, the fact that peroxidase promoter sequences are very divergent and that protein sequences contain both highly conserved domains and variable regions supports this hypothesis. However, two difficulties are associated with the study of the function of specific peroxidase genes: (i) the modification of the expression of a single peroxidase gene often results in no visible mutant phenotype, because it is compensated by redundant genes; and (ii) peroxidases show low substrate specificity in vitro resulting in an unreliable indication of peroxidase specific activity unless complementary data are available. The generalization of molecular biology approaches such as whole transcriptome analysis and recombinant DNA combined with biochemical approaches provide unprecedented tools for overcoming these difficulties. This review highlights progress made with these new techniques for identifying the specific function of individual class III peroxidase genes taking as an example the model plant A. thaliana, as well as discussing some other plants.

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Metadata

Authors
Cosio, C., & Dunand, C.
Venue
Journal of Experimental Botany
Published
2009-01-06
Volume
60
Issue
2
Pages
391-408
ISSN
  • 0022-0957 (ISSN-L)
  • 1460-2431
OpenAlex
W2129495289
Cited by
444
References
92
FWCI
18.13
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Specific functions of individual class III peroxidase genes. https://app.cochat.ai/papers/10.1093/jxb/ern318
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Cosio, C., & Dunand, C. (2009). Specific functions of individual class III peroxidase genes. Journal of Experimental Botany. https://doi.org/10.1093/jxb/ern318

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