Journal
FEBS LETTERS
Volume 580, Issue 18, Pages 4311-4316Publisher
WILEY
DOI: 10.1016/j.febslet.2006.06.088
Keywords
lignin; monolignols; peroxidase; suspension cell; cultures; Zinnia
Ask authors/readers for more resources
The last step of lignin biosynthesis in Zinnia elegans suspension cell cultures (SCCs) catalyzed by peroxidase (ZePrx) has been characterized. The k(3) values shown by ZePrx for the three monolignols revealed that sinapyl alcohol was the best substrate, and were proportional to their oxido/reduction potentials, signifying that these reactions are driven exclusively by redox thermodynamic forces. Feeding experiments demonstrate that cell wall lignification in SCCs is controlled by the rate of supply of H2O2. The results also showed that sites for monolignol beta-O-4 cross-coupling in cell walls may be saturated, suggesting that the growth of the lineal lignin macromolecule is not infinite. (c) 2006 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available