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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Plant Volatile Organic Compounds (VOCs) in Ozone (O-3) Polluted Atmospheres: The Ecological Effects

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Pinto, Delia M. [1] ; Blande, James D. [2] ; Souza, Silvia R. [3] ; Nerg, Anne-Marja [2] ; Holopainen, Jarmo K. [2]
Total Authors: 5
[1] MTT Agrifood Res Finland, Plant Prod Res Plant Protect Unit, Jokioinen 31600 - Finland
[2] Univ Kuopio, Dept Environm Sci, FIN-70211 Kuopio - Finland
[3] Inst Bot, Dept Ecol, BR-01061970 Sao Paulo - Brazil
Total Affiliations: 3
Document type: Review article
Source: Journal of Chemical Ecology; v. 36, n. 1, p. 22-34, JAN 2010.
Web of Science Citations: 63

Tropospheric ozone (O(3)) is an important secondary air pollutant formed as a result of photochemical reactions between primary pollutants, such as nitrogen oxides (NO(x)), and volatile organic compounds (VOCs). O(3) concentrations in the lower atmosphere (troposphere) are predicted to continue increasing as a result of anthropogenic activity, which will impact strongly on wild and cultivated plants. O(3) affects photosynthesis and induces the development of visible foliar injuries, which are the result of genetically controlled programmed cell death. It also activates many plant defense responses, including the emission of phytogenic VOCs. Plant emitted VOCs play a role in many eco-physiological functions. Besides protecting the plant from abiotic stresses (high temperatures and oxidative stress) and biotic stressors (competing plants, micro- and macroorganisms), they drive multitrophic interactions between plants, herbivores and their natural enemies e.g., predators and parasitoids as well as interactions between plants (plant-to-plant communication). In addition, VOCs have an important role in atmospheric chemistry. They are O(3) precursors, but at the same time are readily oxidized by O(3), thus resulting in a series of new compounds that include secondary organic aerosols (SOAs). Here, we review the effects of O(3) on plants and their VOC emissions. We also review the state of current knowledge on the effects of ozone on ecological interactions based on VOC signaling, and propose further research directions. (AU)

FAPESP's process: 08/03208-3 - Evaluation of the impact of ozone and its precursors on the emission of volatile organic compounds and on the antioxidant activity of leaves of model plants exposed to the controlled conditions of fumigation
Grantee:Silvia Ribeiro de Souza
Support Opportunities: Scholarships abroad - New Frontiers