1,721,314 research outputs found
Alterazioni di pathways biochimici e metabolici delle piante da parte dell'ozono: meccanismi di danno e strategie di difesa.
No full text
The effect of filtered vs non filtered polluted air on detoxification enzymes in pumpkin plants
No full text
Impiego dell'EDU nello studio degli effetti dell'inquinamento fotochimico su fagiolo: III- Interazioni con il ciclo glutatione-acido ascorbico.
No full textAbstract non disponibil
Detoxificant systems in bean plants grown in polluted air: effects of the antioxidant EDU
No full textDetoxification and repair process of ozone injury: From O3 uptake to gene expression adjustment
No full textPlants react to O3 threat by setting up a variety of defensive strategies involving the co-ordinated
modulation of stress perception, signalling and metabolic responses. Although stomata largely controls
O3 uptake, differences in O3 tolerance cannot always be ascribed to changes in stomatal conductance but
cell protective and repair processes should be taken into account. O3-driven ROS production in the apoplast induces a secondary, active, self-propagating generation of ROS, whose levels must be finely tuned, by many enzymatic and non-enzymatic antioxidant systems, to induce gene activation without
determining uncontrolled cell death. Additional signalling molecules, as ethylene, jasmonic and salicylic
acid are also crucial to determine the spreading and the containment of leaf lesions. The main recent
results obtained on O3 sensing, signal transduction, ROS formation and detoxification mechanisms are
here discussed
- …
