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Increase in the intensity of thermoluminescence Q‐band during leaf ageing is due to a block in the electron transfer from Q A to Q B
Author(s) -
Biswal A. K.,
Dilnawaz F.,
David K. A. V.,
Ramaswamy N. K.,
Misra A. N.
Publication year - 2001
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.660
Subject(s) - ageing , thermoluminescence , thylakoid , electron , electron transport chain , electron transfer , chemistry , intensity (physics) , materials science , analytical chemistry (journal) , photochemistry , biology , optics , chloroplast , luminescence , optoelectronics , physics , biochemistry , chromatography , nuclear physics , genetics , gene
The thermoluminescence (TL) parameters in intact leaves and thylakoids isolated from leaves showed a different pattern of change during leaf ageing. Ageing of leaves brought about a decrease in the B‐band and a simultaneous increase in the Q‐band. Thylakoids showed only a decrease in the B‐band. The TL bands further show that there is generation of an endogenous electron transport inhibitor during leaf ageing. Copyright © 2001 John Wiley & Sons, Ltd.