Is antimycin A a specific inhibitor of the slow rise of the electrochromic absorbance change in intact chloroplasts?
The inhibitory effect of antimycin A on the slow rise of the flash-induced electrochromic absorbance change was reinvestigated in intact chloroplasts isolated from pea leaves. It is shown that in the absence of nigericin and +K at low repetition rates (less than 0.5 s-1) of the excitation flashes not only the slow (approximately 10 ms) rise but also the initial (much less than 1 ms) rise generated by photosystem 1 is inhibited by antimycin A.
D000968:Antimycin A / Q000494:pharmacology*; D002736:Chloroplasts / Q000187:drug effects*; D009550:Nigericin / Q000494:pharmacology; D010775:Photic Stimulation; D010788:Photosynthesis / Q000187:drug effects; D011188:Potassium / Q000494:pharmacology
D000968:Antimycin A; D009550:Nigericin; D011188:Potassium