ISSN:
1432-072X
Keywords:
Photosynthetic bacteria
;
H+-ATPase
;
Energy transfer inhibition
;
H+-translocation
;
Membrane potential
;
Oxidative and photosynthetic phosphorylation
;
Rhodopseudomonas capsulata
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Venturicidin behaves as an orthodox energy transfer inhibitor in intact cells of Rhodopseudomonas capsulata as judged by the following criteria. 1. It led to inhibition of respiration. Inhibition was relieved by low concentrations of uncoupling agent. 2. It enhanced light-induced and oxygen dependent H+ efflux. 3. It stimulated light-induced and oxygen dependent carotenoid band shifts. The rate of decay of the band shifts after short flash excitation was decreased in the presence of venturicidin. 4. It stimulated light-induced and oxygen dependent butyltriphenylphosphonium uptake. 5. It inhibited the rise in cellular ATP concentration accompanying either photosynthesis or respiration.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00417187
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