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Stability of plant defensive traits among populations in two Eucalyptus species under elevated carbon dioxide
Citation
McKiernan, AB and O'Reilly-Wapstra, JM and Price, C and Davies, NW and Potts, BM and Hovenden, MJ, Stability of plant defensive traits among populations in two Eucalyptus species under elevated carbon dioxide, Journal of Chemical Ecology, 38, (2) pp. 204-212. ISSN 0098-0331 (2012) [Refereed Article]
Copyright Statement
Copyright Springer Science+Business Media, LLC 2012
DOI: doi:10.1007/s10886-012-0071-4
Abstract
Plant secondary metabolites (PSMs) mediate a
wide range of ecological interactions. Investigating the effect
of environment on PSM production is important for our
understanding of how plants will adapt to large scale environmental
change, and the extended effects on communities
and ecosystems. We explored the production of PSMs under
elevated atmospheric carbon dioxide ([CO2]) in the species
rich, ecologically and commercially important genus Eucalyptus.
Seedlings from multiple Eucalyptus globulus and E.
pauciflora populations were grown in common glasshouse
gardens under elevated or ambient [CO2]. Variation in primary
and secondary chemistry was determined as a function
of genotype and treatment. There were clear population
differences in PSM expression in each species. Elevated
[CO2] did not affect concentrations of individual PSMs,
total phenolics, condensed tannins or the total oil yield,
and there was no population by [CO2] treatment interaction
for any traits. Multivariate analysis revealed similar results
with significant variation in concentrations of E. pauciflora
oil components between populations. A [CO2] treatment
effect was detected within populations but no interactions
were found between elevated [CO2] and population. These
eucalypt seedlings appear to be largely unresponsive to
elevated [CO2], indicating stronger genetic than environmental
(elevated [CO2]) control of expression of PSMs.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | leaf secondary metabolites, elevated CO2, herbivory, eucalyptus, genotype |
| Research Division: | Biological Sciences |
| Research Group: | Other biological sciences |
| Research Field: | Global change biology |
| Objective Division: | Expanding Knowledge |
| Objective Group: | Expanding knowledge |
| Objective Field: | Expanding knowledge in the environmental sciences |
| UTAS Author: | McKiernan, AB (Mr Adam McKiernan) |
| UTAS Author: | O'Reilly-Wapstra, JM (Professor Julianne O'Reilly-Wapstra) |
| UTAS Author: | Price, C (Miss Cassandra Price) |
| UTAS Author: | Davies, NW (Associate Professor Noel Davies) |
| UTAS Author: | Potts, BM (Professor Brad Potts) |
| UTAS Author: | Hovenden, MJ (Professor Mark Hovenden) |
| ID Code: | 79117 |
| Year Published: | 2012 |
| Web of Science® Times Cited: | 27 |
| Deposited By: | Plant Science |
| Deposited On: | 2012-08-17 |
| Last Modified: | 2013-05-13 |
| Downloads: | 0 |
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