A1 Refereed original research article in a scientific journal
Phenolic Compounds of the Inner Bark of Betula pendula: Seasonal and Genetic Variation and Induction by Wounding
Authors: Liimatainen J, Karonen M, Sinkkonen J, Helander M, Salminen JP
Publisher: SPRINGER
Publication year: 2012
Journal: Journal of Chemical Ecology
Journal name in source: JOURNAL OF CHEMICAL ECOLOGY
Journal acronym: J CHEM ECOL
Number in series: 11
Volume: 38
Issue: 11
First page : 1410
Last page: 1418
Number of pages: 9
ISSN: 0098-0331
DOI: https://doi.org/10.1007/s10886-012-0199-2
Abstract
The contents of individual phenolic compounds in the inner bark of silver birch (Betula pendula Roth) were analyzed by HPLC-DAD. Samples from 21 mature trees originating from three micropropagated parent trees were collected six times over a 1-year period. Significant seasonal variation in the quantities of ten compounds and four chromatographically unresolved compound pairs was found. A majority of the compounds also exhibited significant quantitative variation among birch clones. There were no qualitative differences associated with the season or among the clones. However, wounding of the bark induced the production of new types of bark phenolics: several ellagitannins were detected in the callus tissues of birch for the first time.
The contents of individual phenolic compounds in the inner bark of silver birch (Betula pendula Roth) were analyzed by HPLC-DAD. Samples from 21 mature trees originating from three micropropagated parent trees were collected six times over a 1-year period. Significant seasonal variation in the quantities of ten compounds and four chromatographically unresolved compound pairs was found. A majority of the compounds also exhibited significant quantitative variation among birch clones. There were no qualitative differences associated with the season or among the clones. However, wounding of the bark induced the production of new types of bark phenolics: several ellagitannins were detected in the callus tissues of birch for the first time.
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