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The impact of atmospheric composition on plants : a case study of ozone and poplar

Abstract : Tropospheric ozone is the main atmospheric pollutant that causes damages to trees. The estimation of the threshold for ozone risk assessment depends on the evaluation of the means that this pollutant impacts the plant and, especially, the foliar organs. The available results show that, before any visible symptom appears, carbon assimilation and the underlying metabolic processes are decreased under chronic ozone exposure. By contrast, the catabolic pathways are enhanced, and contribute to the supply of sufficient reducing power necessary to feed the detoxification processes. Reactive oxygen species delivered during ozone exposure serve as toxic compounds and messengers for the signaling system. In this review, we show that the contribution of genomic tools (transcriptomics, proteomics, and metabolomics) for a better understanding of the mechanistic cellular responses to ozone largely relies on spectrometric measurements.
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Jenny Renaut, Sacha Bohler, Jean-François Hausman, Lucien Hoffman, Kjell Sergeant, et al.. The impact of atmospheric composition on plants : a case study of ozone and poplar. Journal of Mass Spectrometry, Wiley-Blackwell, 2008, 28 (3), pp.495-516. ⟨10.1002/mas.20202⟩. ⟨hal-02665990⟩



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