ISHS Acta Horticulturae 381: International Symposium on Natural Phenols in Plant Resistance
FLAVANOL ACCUMULATION IN APRICOT GRAFTS AS A RESPONSE TO INCOMPATIBILITY STRESS |
| Authors: | P. Errea, A. Felipe, D. Treutter, W. Feucht |
| Abstract:
Two apricot varieties on several rootstocks were tested in the experiments, namely the generally graft-compatible 'Luizet' and the generally incompatible 'Moniqui'. The incompatible stock-scion combinations showed an enhanced flavanol-level in the phloem at the graft union. In particular the concentrations of 2 flavanols of unknown structure increased as a response to incompatibility stress. The accumulation of flavanols was monitored by HPLC and light microscopy, both after reaction with p-Dimethylaminocinnamaldehyd (DMACA). | |
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