Influence of cations in extracellular liquid on delayed luminescence of Acetabularia acetabulum

1998 ◽  
Vol 45 (1) ◽  
pp. 60-66 ◽  
Author(s):  
M.W. Ho ◽  
F. Musumeci ◽  
A. Scordino ◽  
A. Triglia
1988 ◽  
Vol 43 (11-12) ◽  
pp. 871-876 ◽  
Author(s):  
Imre Vass ◽  
Narendranath Mohanty ◽  
Sándor Demeter

Abstract The effect of photoinhibition on the primary (QA) and secondary (QB) quinone acceptors of photosystem I I was investigated in isolated spinach thylakoids by the methods of thermoluminescence and delayed luminescence. The amplitudes of the Q (at about 2 °C) and B (at about 30 °C) thermoluminescence bands which are associated with the recombination of the S2QA- and S2QB charge pairs, respectively, exhibited parallel decay courses during photoinhibitory treatment. Similarly, the amplitudes of the flash-induced delayed luminescence components ascribed to the recombination of S20A and S2OB charge pairs and having half life-times of about 3 s and 30 s, respectively, declined in parallel with the amplitudes of the corresponding Q and B thermoluminescence bands. The course of inhibition of thermoluminescence and delayed luminescence intensity was parallel with that of the rate of oxygen evolution. The peak positions of the B and Q thermoluminescence bands as well as the half life-times of the corresponding delayed luminescence components were not affected by photoinhibition. These results indicate that in isolated thylakoids neither the amount nor the stability of the reduced OB acceptor is preferentially decreased by photoinhibition. We conclude that either the primary target of photodamage is located before the O b binding site in the reaction center of photosystem II or QA and OB undergo simultaneous damage.


2016 ◽  
Vol 120 (30) ◽  
pp. 17136-17142 ◽  
Author(s):  
Patrick J. Whitham ◽  
Arianna Marchioro ◽  
Kathryn E. Knowles ◽  
Troy B. Kilburn ◽  
Philip J. Reid ◽  
...  

2005 ◽  
Vol 51 (2) ◽  
pp. 155-160 ◽  
Author(s):  
Jungdae Kim ◽  
Jaekwan Lim ◽  
Byung-Cheon Lee ◽  
Yong-ung Kim ◽  
Seung Ki Lee ◽  
...  

2015 ◽  
Vol 80 (3) ◽  
pp. 452-460 ◽  
Author(s):  
Paweena Chuenwarin ◽  
Azumi Shimazaki ◽  
Masanori Shimizu ◽  
Yuko Kobayashi ◽  
Masakazu Katsumata ◽  
...  

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