Phenolics as major components of apoplastic chemical protection

2 Phenolics as major components of apoplastic chemical protection 

Some apoplastic phenolics play constitutive chemical defense as it has been demonstrated in bark tissues of woody plants (Franceschi et al, 2005). In leaf mesophyll of Quercus robur L., immunohistological studies revealed that cell wall is the main site of common accumulation of pentagalloylglucose, the precursor of the esterification enzyme (galloyltransferase) 

Peciip cross-lipkiDg suberisaiiop Wall siiffeoiDg Polyphenol polyoter lignincaiioQ 

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