Investigation of the Phenolic Profile and Chemotaxonomical Screening of Twelve Salix Species During Growing Season

Title data

Kayser, Leonie ; Gruber, Thomas Olaf ; Aas, Gregor ; Jürgenliemk, Guido:
Investigation of the Phenolic Profile and Chemotaxonomical Screening of Twelve Salix Species During Growing Season.
In: Plants. Vol. 15 (2026) Issue 11 . - 1712.
ISSN 2223-7747
DOI: https://doi.org/10.3390/plants15111712

Official URL:

Abstract in another language

The present study describes the phenolic profile of the leaves of 12 different willow species by UPLC®-RP18-PDA in terms of variability between species, years, harvest month, and among sexes. The analyzed compound classes include salicylic alcohol derivatives (SADs), caffeic acid derivatives (CADs), coumaryl alcohol glucosides (CAGs), flavan-3-ols, flavanones, flavanonols, flavones, and flavonols. Furthermore, the Salix species were chemotaxonomically classified on this basis, and correlations between the constituent classes were analyzed. The investigations indicate that the phenolic spectrum is highly species-specific but reveals no sex-specific variation. The flavan-3-ol content varied substantially among species, ranging from 2.1–36 mg/g DW and S. bicolor was determined to be a species of particular phytochemical interest, as it contained high concentrations of flavanonols (13 mg/g DM) and flavones (24 mg/g DW). Furthermore, at the end of the growth period, the secondary metabolite content was significantly higher and the compound classes CADs and flavan-3-ols were found to be significantly influenced by the harvest year. Chemotaxonomical classification revealed the separation of S. bicolor, S. purpurea, and S. caprea from the other species when compared with the generally accepted classification of the genus. This study contributes to a more comprehensive phytochemical characterization of willow species, which may support the development of willow extracts.

Further data

Item Type:	Article in a journal
Refereed:	Yes
Keywords:	Salix; willow; phenolic compounds; chemotaxonomical screening; phytochemical screening; correlation; interspecific variability; interannual variability; interseasonal variability; intersexual variability
Institutions of the University:	Research Institutions > Central research institutes > Bayreuth Center of Ecology and Environmental Research- BayCEER Service Facilities > Ökologisch-Botanischer Garten Research Institutions Research Institutions > Central research institutes Service Facilities
Result of work at the UBT:	Yes
DDC Subjects:	500 Science 500 Science > 500 Natural sciences 500 Science > 570 Life sciences, biology 500 Science > 580 Plants (Botany)
Date Deposited:	25 Jul 2026 21:00
Last Modified:	27 Jul 2026 05:31
URI:	https://eref.uni-bayreuth.de/id/eprint/99115