Accumulation of phenolics and growth of dioecious Populus tremula (L.) seedlings over three growing seasons under elevated temperature and UVB radiation

Copyright © 2021 The Author(s). Published by Elsevier Masson SAS.. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 165(2021) vom: 01. Aug., Seite 114-122
1. Verfasser: Sobuj, Norul (VerfasserIn)
Weitere Verfasser: Nissinen, Katri, Virjamo, Virpi, Salonen, Anneli, Sivadasan, Unnikrishnan, Randriamanana, Tendry, Ikonen, Veli-Pekka, Kilpeläinen, Antti, Julkunen-Tiitto, Riitta, Nybakken, Line, Mehtätalo, Lauri, Peltola, Heli
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Aspen Elevated temperature Secondary metabolites Sexual dimorphism Tree growth UVB radiation
Beschreibung
Zusammenfassung:Copyright © 2021 The Author(s). Published by Elsevier Masson SAS.. All rights reserved.
Accumulation of secondary metabolites may exhibit developmentally regulated variation in different plant organs. Moreover, prevailing environmental conditions may interact with development-related variations in plant traits. In this study, we examined developmentally regulated variation in phenolic accumulation in the twigs of dioecious Populus tremula (L.) and how the effects of elevated temperature and ultraviolet B (UVB) radiation on growth and phenolics accumulation varied as the plants get older. In an open-field experiment, six female and six male genotypes were exposed to single and combined elevated temperature and UVB radiation treatments for three consecutive growing seasons. The concentrations of low molecular weight phenolics and condensed tannins did not show age-dependent variation in the twigs. In temperature-treated plants, diameter growth rate decreased, and concentration of condensed tannins increased as plants aged; there were no cumulative effects of elevated UVB radiation on growth and phenolic accumulation. Females maintained a higher concentration of low molecular weight phenolics throughout the experimental period; however, growth and phenolic concentration did not vary over time in females and males. Our results suggest that phenolic accumulation in perennial plants may not necessarily always exhibit age-dependent variation and the effects of elevated temperature on growth and phenolic may diminish as plants get older
Beschreibung:Date Completed 15.06.2021
Date Revised 15.06.2021
published: Print-Electronic
Citation Status MEDLINE
ISSN:1873-2690
DOI:10.1016/j.plaphy.2021.05.012