ISHS Acta Horticulturae 381: International Symposium on Natural Phenols in Plant Resistance
WATER STRESS INDUCED CHANGES IN PHENOL COMPOSITION OF LEAVES AND PHLOEM OF PRUNUS AVIUM L. |
| Authors: | Y. Cohen, D. Treutter, W. Feucht |
| Abstract:
Excessive water logging of interspecific sweet cherry graftings (Prunus avium L. grafted on P. cerasus L ‘Weiroot’) reduced their vegetative growth and induced the accumulation of phenolic stress metabolites. The leaves responded with a several-fold increase of the flavanol pattern (epicatechin, procyanidins B2, B5, C1), of kaempferol-glucosides, rutin and chlorogenic acid. At the graft union, the most sensitive part of a fruit tree, characteristic incompatibility factors accumulated: the flavanone prunin, the cyanogenic glucoside prunasin as well as epicatechin and two unidentified procyanidins. These findings confirm practical observations that water logging reduces the compatibility of grafted cherry trees. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
