Disruption of LACCASE4 and 17 results in tissue-specific alterations to lignification of Arabidopsis thaliana stems.

@article{Berthet2011DisruptionOL,
  title={Disruption of LACCASE4 and 17 results in tissue-specific alterations to lignification of Arabidopsis thaliana stems.},
  author={Serge Berthet and Nathalie Demont-Caulet and Brigitte N-L Pollet and Przemyslaw Bidzinski and Laurent C{\'e}zard and Phillipe Le Bris and Nero Borrega and Jonathan Herv{\'e} and Eddy Blondet and Sandrine Balzergue and Catherine Lapierre and Lise Jouanin},
  journal={The Plant cell},
  year={2011},
  volume={23 3},
  pages={1124-37}
}
Peroxidases have been shown to be involved in the polymerization of lignin precursors, but it remains unclear whether laccases (EC 1.10.3.2) participate in constitutive lignification. We addressed this issue by studying laccase T-DNA insertion mutants in Arabidopsis thaliana. We identified two genes, LAC4 and LAC17, which are strongly expressed in stems. LAC17 was mainly expressed in the interfascicular fibers, whereas LAC4 was expressed in vascular bundles and interfascicular fibers. We… CONTINUE READING
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