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
in English
| 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.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Piperazines
/
Plants
/
Radiation-Protective Agents
/
Kinetics
/
Chloroplasts
/
Electron Transport
/
Intracellular Membranes
Language:
English
Journal:
Indian J Biochem Biophys
Year:
1992
Type:
Article
Similar
MEDLINE
...
LILACS
LIS