N. Horemans et al., THE ROLE OF ASCORBATE FREE-RADICAL AS AN ELECTRON-ACCEPTOR TO CYTOCHROME B-MEDIATED TRANS-PLASMA MEMBRANE ELECTRON-TRANSPORT IN HIGHER-PLANTS, Plant physiology, 104(4), 1994, pp. 1455-1458
The action of ascorbate free radical as an electron acceptor to cytoch
rome b-mediated trans-plasma membrane electron transport is demonstrat
ed. Addition of ascorbate free radical to ascorbate-loaded plasma memb
rane vesicles caused a rapid oxidation of the cytochrome, followed by
a slower re-reduction. The fully reduced dehydroascorbate was ineffect
ive.