Lignification in Trees: Indication of Exclusive Peroxidase Participation

Syringaldazine did not turn purple on cross sections of tree branches or saplings or on cambial tissue cultures unless hydrogen peroxide was added; this indicated the absence of laccase but presence of peroxidase in lignifying cells. Peroxidase, therefore, apparently is the only enzyme that polymeri...

Full description

Saved in:
Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1973-04, Vol.180 (4083), p.296-298
Main Authors: Harkin, John M., Obst, John R.
Format: Article
Language:English
Subjects:
Alcoholic beverages
Cambium
Enzymes
Lignification
Lignin
Oxidases
Phenols
Saplings
Thulium
Xylem
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Syringaldazine did not turn purple on cross sections of tree branches or saplings or on cambial tissue cultures unless hydrogen peroxide was added; this indicated the absence of laccase but presence of peroxidase in lignifying cells. Peroxidase, therefore, apparently is the only enzyme that polymerizes p-coumaryl alcohols to lignin in trees.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.180.4083.296