http://www.cnr.it/ontology/cnr/individuo/prodotto/ID172581
Moving toward effective ozone flux assessment (Articolo in rivista)
- Type
- Label
- Moving toward effective ozone flux assessment (Articolo in rivista) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.envpol.2008.02.025 (literal)
- Alternative label
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- Paoletti E. (a); Ranieri A. (b); Lauteri M. (c) (literal)
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- a) IPP-CNR, Via Madonna del Piano 10, I-50019 Sesto Fiorentino, Florence, Italy;
b) Department of Agricultural Chemistry and Biotechnology, University of Pisa, Via del Borghetto 80, Pisa, Italy;
c) IBAF-CNR, Via Marconi 2, I-05010 Porano, Terni, Italy (literal)
- Titolo
- Moving toward effective ozone flux assessment (literal)
- Abstract
- We present a comment about “Ozone risk assessment for plants: central role of metabolism-dependent changes in reducing power” by Dizengremel, Le Thiec, Bagard, and Jolivet. As tools for summarizing plant O3 sensitivity in simple indices, Dizengremel et al. suggest: reducing power, as antioxidant regeneration through the Halliwell/Asada cycle requires NADPH from the photosynthetic light reaction; Rubisco/PEPc ratio, as an index of the energy balance between anabolic and catabolic reactions; and water-use efficiency as a time-integrated approximation of the carbon gain to stomatal O3 uptake ratio. The scientific background is solid, and simple enough (although expensive) to be translated into modelling and routine use. In the last decade, several approaches have been developed, mostly by using photosynthesis as a metric of defence. All these approaches should be experimentally tested in different and realistic conditions, before the results are transferred to the field and used in effective O3 flux modelling and assessment.
Unravelling the mechanisms of plant sensitivity and summarizing them in simple indices are the main challenges of present ozone risk assessment. (literal)
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