http://www.cnr.it/ontology/cnr/individuo/prodotto/ID168372
Ozone tolerance in Phaseolus vulgaris depends on more than one mechanism (Articolo in rivista)
- Type
- Label
- Ozone tolerance in Phaseolus vulgaris depends on more than one mechanism (Articolo in rivista) (literal)
- Anno
- 2010-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.envpol.2010.06.037 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Lucia Guidi; Elena Degli Innocenti; Cristiana Giordano; Stefano Biricolti; Massimiliano Tattini (literal)
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- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Dipartimento di Biologia delle Piante Agrarie, Via del Borghetto 80, I-56124 Pisa, Italy
Dipartimento di Biologia delle Piante Agrarie, Via del Borghetto 80, I-56124 Pisa, Italy
Ce.M.E, Centro di Microscopie Elettroniche, CNR, Via Madonna del Piano 10, I-50019 Sesto F.no, Firenze, Italy
Dipartimento di Ortoflorofrutticoltura, Università di Firenze, Viale delle Idee 30, I-50019 Sesto F.no, Firenze, Italy
Istituto per la Protezione delle Piante, CNR, Via Madonna del Piano 10, I-50019 Sesto F.no, Firenze, Italy (literal)
- Titolo
- Ozone tolerance in Phaseolus vulgaris depends on more than one mechanism (literal)
- Abstract
- Two bean cultivars with different sensitivity to ozone, i.e. the O3-sensitive Cannellino and the O3-tolerant Top Crop, were exposed to acute O3-stress (165 nL L_1) with the aim of evaluating physiological and biochemical traits that may confer O3-tolerance. Stomatal conductance was smaller and the ability to dissipate excess energy, via regulated and unregulated nonphotochemical quenching mechanisms was greater in Top Crop than in Cannellino. These morphological and physiological-traits allowed the O3-tolerant cultivar to compensate for the light-induced declines in FPSII, to preserve photosystem II from excitation-energy, and likely to prevent the generation of ROS to a superior degree than the O3-sensitive cultivar. Furthermore, the potential capacities to reducing the superoxide anion and H2O2 were significantly greater in Top Crop than in Cannellino. These findings are consistent with the early accumulation of H2O2, the almost complete disruption of cell structure, and irreversible damages to the photosynthetic apparatus observed in the O3-sensitive cultivar. (literal)
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