IRIS Catalogo Istituzionale della Ricerca dell'Università degli Studi del Molise
IRIS è il Catalogo Istituzionale della Ricerca dell'Università degli Studi del Molise ed ha lo scopo di consentire la conservazione e la consultazione delle informazioni sulla produzione scientifica dell'Ateneo.
EnglishSalt-stress effects on proline concentrations as well as proline metabolizing enzymes activities were studied in durum wheat seedlings. Pro is metabolized in the mitochondria to glutamate via Pro dehydrogenase/oxidase (EC 1.5.99.8) and P5C dehydrogenase (EC 1.5.1.12). We considered mitochondria isolated and purified from durum wheat seedlings to be a suitable experimental system to carry out a specific investigation on the effects of salt stress on mitochondrial function and metabolism. Durum wheat is a species well adapted to the Mediterranean environments, chosen as a model system given that it habitually grows under drought and/or salt stress conditions, where salt stress due to seawater intrusion into aquifers is an increasing problem [Flagella et al; 2006]. Our data provide evidence to support the hypothesis that Pro accumulation in the extramitochondrial phase, is controlled by the mitochondrial permeability (i.e. carrier solely for proline and a proline/glutamate antiporter [De Martino et al; 2006]) rather than by the mitochondrial catabolism. References Flagella et al. Functional Plant Biology 2006 33 (4): 357-366; Di Martino et. al. Planta 2006 May;223(6):1123-33.
| Titolo: | Proline accumulation in durum wheat seedlings under salt stress conditions depends on its own mitochondrial transport | |
| Autori: | ||
| Data di pubblicazione: | 2006 | |
| Abstract: | Salt-stress effects on proline concentrations as well as proline metabolizing enzymes activities were studied in durum wheat seedlings. Pro is metabolized in the mitochondria to glutamate via Pro dehydrogenase/oxidase (EC 1.5.99.8) and P5C dehydrogenase (EC 1.5.1.12). We considered mitochondria isolated and purified from durum wheat seedlings to be a suitable experimental system to carry out a specific investigation on the effects of salt stress on mitochondrial function and metabolism. Durum wheat is a species well adapted to the Mediterranean environments, chosen as a model system given that it habitually grows under drought and/or salt stress conditions, where salt stress due to seawater intrusion into aquifers is an increasing problem [Flagella et al; 2006]. Our data provide evidence to support the hypothesis that Pro accumulation in the extramitochondrial phase, is controlled by the mitochondrial permeability (i.e. carrier solely for proline and a proline/glutamate antiporter [De Martino et al; 2006]) rather than by the mitochondrial catabolism. References Flagella et al. Functional Plant Biology 2006 33 (4): 357-366; Di Martino et. al. Planta 2006 May;223(6):1123-33. | |
| Handle: | http://hdl.handle.net/11695/13689 | |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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