Characterization of aliphatic amine 1,4-diazobicyclo (2,2,2) octane-induced stimulation of beet spinach thylakoid electron transport.
Indian J Biochem Biophys
;
1992 Dec; 29(6): 490-3
Article
Dans Anglais
| IMSEAR
| ID: sea-27933
ABSTRACT
Electron transport activity of beet spinach thylakoids was enhanced in the presence of aliphatic amine, DABCO (1,4-diazobicyclo (2,2,2) octane), a hydrophilic proton trapping agent. The extent of stimulation was pH-dependent and similar to the effect of the uncoupler ammonium chloride on electron transport. The stimulation of whole-chain (H2O-->MV) electron transport activity was observed only at high (rate-saturating) light intensity. The light-induced proton uptake coupled to electron transport of thylakoid was also arrested by DABCO, suggesting that DABCO uncouples thylakoid phosphorylation by proton trapping.
Texte intégral:
Disponible
Indice:
IMSEAR (Asie du Sud-Est)
Sujet Principal:
Pipérazines
/
Plantes
/
Radioprotecteurs
/
Cinétique
/
Chloroplastes
/
Transport d'électrons
/
Membranes intracellulaires
langue:
Anglais
Texte intégral:
Indian J Biochem Biophys
Année:
1992
Type:
Article
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