Isoprene synthase expression and protein levels are reduced under elevated O3 but not under elevated CO2 (FACE) in field-grown aspen trees

Carlo Calfapietra; Amy E. Wiberley; Tanya G. Falbel; Autumn R. Linskey; Guiseppe Scarascia Mugnozza; David F. Karnosky; Francesco Loreto; Thomas D. Sharkey

doi:10.1111/j.1365-3040.2007.01646.x

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Isoprene synthase expression and protein levels are reduced under elevated O₃ but not under elevated CO₂ (FACE) in field-grown aspen trees

Informally Refereed

Authors:

Carlo Calfapietra, Amy E. Wiberley, Tanya G. Falbel, Autumn R. Linskey, Guiseppe Scarascia Mugnozza, David F. Karnosky, Francesco Loreto, Thomas D. Sharkey

Year:

2007

Type:

Scientific Journal

Station:

Northern Research Station

DOI:

https://doi.org/10.1111/j.1365-3040.2007.01646.x

Source:

Plant, Cell and Environment. 30: 654-661.

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Abstract

Emission of hydrocarbons by trees has a crucial role in the oxidizing potential of the atmosphere. In particular, isoprene oxidation leads to the formation of tropospheric ozone and other secondary pollutants. It is expected that changes in the composition of the atmosphere will influence the emission rate of isoprene, which may in turn feedback on the accumulation of pollutants and greenhouse gases. We investigated the isoprene synthase (ISPS) gene expression and the ISPS protein levels in aspen trees exposed to elevated ozone (O₃) and/or elevated carbon dioxide (CO₂) in field-grown trees at the Aspen Free-Air Carbon Dioxide Enrichment (FACE) experimental site.

Keywords

Populus, forestry plantations, global change, VOC

Citation

Calfapietra, Carlo; Wiberley, Amy E.; Falbel, Tanya G.; Linskey, Autumn R.; Mugnozza, Guiseppe Scarascia; Karnosky, David F.; Loreto, Francesco; Sharkey, Thomas D. 2007. Isoprene synthase expression and protein levels are reduced under elevated O3 but not under elevated CO2 (FACE) in field-grown aspen trees. Plant, Cell and Environment. 30: 654-661.