Tracing the acclimation of European beech ( Fagus sylvatica L.) populations to climatic stress by analyzing the antioxidant system

iForest: Biogeosciences and Forestry

article

Eszter Visi-Rajczi¹  Tamás Hofmann¹  Levente Albert¹  Csaba Mátyás² 

[1] Institute of Chemistry, University of Sopron;Institute of Environmental and Earth Sciences, University of Sopron

关键词: Beech;    Drought Stress;    Antioxidants;    Phenotypic Plasticity;    Provenance Trial;    Climate Change;   

DOI  :  10.3832/ifor3542-013

学科分类：社会科学、人文和艺术（综合）

来源: Societa Italiana di Selvicoltura ed Ecologia Forestale (S I S E F)

【 摘 要 】

Through a common garden (provenance) experiment, we investigated the metabolic responses to climatic stress with regard to the acclimation potential of different European beech (Fagus sylvatica L.) populations. Selected enzymatic and non-enzymatic antioxidants were analyzed in leaves. Peroxidase (POD) and polyphenol oxidase (PPO) enzyme activity, total protein content as well as ABTS [2.2’-azino-bis-(3-etylbenzothiazoline)-6-sulphonic acid] antioxidant capacity were measured in the leaves of selected populations. Major leaf polyphenols were identified and their relative amounts were compared. Significant correlations were found between phenotypic (diameter growth) response to simulated climatic stress and the activity (and amount) of selected chemical components. The concentrations of certain polyphenols, POD enzyme activity, and total protein content may be chemical indicators of the acclimation potential of populations and may contribute to the forecasting of climate change effects, which can aid in the selection of suitable propagation material for adaptive silviculture.

【 授权许可】

Unknown