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Volatile isoprenoid emission potentials are correlated with essential isoprenoid concentrations in five plant species

Owen, Susan Margaret; Penuelas, Josep. 2013 Volatile isoprenoid emission potentials are correlated with essential isoprenoid concentrations in five plant species. Acta Physiologiae Plantarum, 35 (11). 3109-3125. 10.1007/s11738-013-1344-4

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Abstract/Summary

This study offers new insight and data in support of the “opportunist hypothesis”. Five species of volatile isoprenoid-emitting plants (Eucalyptus globulus, Eucalyptus gunnii, Mucuna pruriens, Lycopersicon esculentum and Quercus ilex) were exposed to a wide range of imposed and natural stress conditions over a period of a few weeks in order to generate different levels of isoprenoid production potential. Volatile isoprenoid emissions and carotenoid concentrations were measured in all species and dimethylallyl diphosphate (DMAPP) concentrations were measured in E. globulus, E. gunnii, M. pruriens and L. esculentum. Generally, instantaneously emitted isoprenoid emissions were positively correlated with carotenoid concentrations, and were negatively correlated with DMAPP concentrations. In contrast, stored monoterpene emission potentials were negatively correlated with carotenoid concentrations, and positively correlated with DMAPP concentrations. These results support the possibility of a direct or indirect control of volatile isoprenoid emission potential via carotenoid synthesis at time scales of days to weeks.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1007/s11738-013-1344-4
Programmes: CEH Topics & Objectives 2009 - 2012 > Biodiversity > BD Topic 2 - Ecological Processes in the Environment
CEH Topics & Objectives 2009 - 2012 > Biogeochemistry > BGC Topic 1 - Monitoring and Interpretation of Biogeochemical and Climate Changes
CEH Sections: Billett (to November 2013)
ISSN: 0137-5881
Additional Information. Not used in RCUK Gateway to Research.: This document is the author’s final manuscript version of the journal article, incorporating any revisions agreed during the peer review process. Some differences between this and the publisher’s version remain. You are advised to consult the publisher’s version if you wish to cite from this article. The final publication is available at link.springer.com
Additional Keywords: VOCs, isoprene, monoterpenes, biogenic emission potentials, carotenoids, DMAPP
NORA Subject Terms: Ecology and Environment
Atmospheric Sciences
Date made live: 19 Mar 2014 12:24 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/500438

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