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).
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.
Biswal
A K
AK
Department of Botany, Utkal University, Bhubaneswar-751004, India.
Dilnawaz
F
F
David
K A
KA
Ramaswamy
N K
NK
Misra
A N
AN
D007887:Fabaceae; D049449:Luminescence; D009149:Mustard Plant; D010788:Photosynthesis / Q000502:physiology*; D045322:Photosynthetic Reaction Center Complex Proteins / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry / Q000502:physiology*; D020524:Thylakoids / Q000502:physiology*
D045322:Photosynthetic Reaction Center Complex Proteins