THE ROLE OF ASCORBATE FREE-RADICAL AS AN ELECTRON-ACCEPTOR TO CYTOCHROME B-MEDIATED TRANS-PLASMA MEMBRANE ELECTRON-TRANSPORT IN HIGHER-PLANTS

Authors
HOREMANS N ASARD H CAUBERGS RJ
Citation
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
Citations number
20
Categorie Soggetti
Plant Sciences
Journal title
Plant physiology → ACNP
ISSN journal
00320889
Volume
104
Issue
4
Year of publication
1994
Pages
1455 - 1458
Database
ISI
SICI code
0032-0889(1994)104:4<1455:TROAFA>2.0.ZU;2-W
Abstract
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.