The impact of atmospheric composition on plants: a case study of ozone and poplar.
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.
Renaut
Jenny
J
Centre de Recherche Public-Gabriel Lippmann, Department of Environment and Agrobiotechnologies (EVA), Belvaux, Luxembourg.
Bohler
Sacha
S
Hausman
Jean-François
JF
Hoffmann
Lucien
L
Sergeant
Kjell
K
Ahsan
Nagib
N
Jolivet
Yves
Y
Dizengremel
Pierre
P
D000393:Air Pollutants / Q000378:metabolism; D018506:Gene Expression Regulation, Plant; D055432:Metabolomics / Q000379:methods; D010084:Oxidation-Reduction; D010126:Ozone / Q000378:metabolism*; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism; D010944:Plants / Q000235:genetics* / Q000378:metabolism*; D032107:Populus / Q000235:genetics / Q000378:metabolism*; D040901:Proteomics / Q000379:methods
D000393:Air Pollutants; D010940:Plant Proteins; D010126:Ozone