Effect of Fe deficiency on mitochondrial alternative NAD(P)H dehydrogenases in cucumber roots
Articolo
Data di Pubblicazione:
2010
Citazione:
Effect of Fe deficiency on mitochondrial alternative NAD(P)H dehydrogenases in cucumber roots / G. Vigani, G. Zocchi. - In: JOURNAL OF PLANT PHYSIOLOGY. - ISSN 0176-1617. - 167:8(2010 May 15), pp. 666-669. [10.1016/j.jplph.2009.12.006]
Abstract:
Iron deficiency affects the function of respiratory chain, mainly at the complex I and complex II levels. Since plant mitochondria posses alternative NAD(P)H dehydrogenases located in the inner-membrane, oxidising NAD(P)H from both cytosol and matrix, we investigated these activities in mitochondria of Fe-deficient roots. External and internal NAD(P)H dehydrogenase activities increased in Fe-deficient mitochondria. Accordingly, NDB1 protein strongly accumulates while NDA1 does not show relevant differences in Fe-deficient roots. The data presented support, for the first time, the hypothesis that Fe deficiency induces the alternative NAD(P)H dehydrogenases bypassing the impaired complex I.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Alternative NAD(P)H dehydrogenase; Cucumis sativus L.; Fe deficiency; Mitochondria; Root
Elenco autori:
G. Vigani, G. Zocchi
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