The concentration of ascorbic acid and glutathione in 13 provenances of Acacia melanoxylon
journal contribution
posted on 2020-10-28, 00:00 authored by A Wujeska-Klause, G Bossinger, Michael TauszClimate change can negatively affect sensitive tree species, affecting their acclimation and adaptation strategies. A common garden experiment provides an opportunity to test whether responses of trees from different provenances are genetically driven and if this response is related to factors at the site of origin. We hypothesized that antioxidative defence systems and leaf mass area of Acacia melanoxylon R. Br. samples collected from different provenances will vary depending on local rainfall. Thirteen provenances of A. melanoxylon originating from different rainfall habitats (500-2000 mm) were grown for 5 years in a common garden. For 2 years, phyllode samples were collected during winter and summer, for measurements of leaf mass area and concentrations of glutathione and ascorbic acid. Leaf mass area varied between seasons, years and provenances of A. melanoxylon, and an increase was associated with decreasing rainfall at the site of origin. Ascorbic acid and glutathione concentrations varied between seasons, years (i.e., environmental factors) and among provenances of A. melanoxylon. In general, glutathione and ascorbic acid concentrations were higher in winter compared with summer. Ascorbic acid and glutathione were different among provenances, but this was not associated with rainfall at the site of origin. © 2016 The Author.
Funding
Category 2 - Other Public Sector Grants Category
History
Volume
36Issue
4Start Page
524End Page
532Number of Pages
9eISSN
1758-4469ISSN
0829-318XPublisher
Oxford University PressPublisher DOI
Peer Reviewed
- Yes
Open Access
- No
Acceptance Date
2016-01-27External Author Affiliations
The University of MelbourneEra Eligible
- Yes
Journal
Tree PhysiologyUsage metrics
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