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Articles

WATER STRESS INDUCED CHANGES IN PHENOL COMPOSITION OF LEAVES AND PHLOEM OF PRUNUS AVIUM L.

Article number
381_64
Pages
494 – 497
Language
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.

Publication
Authors
Y. Cohen, D. Treutter, W. Feucht
Keywords
Full text
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