Relation between the heat-induced increase of F0 fluorescence and a shift in the electronic equilibrium at the acceptor side of photosystem 2

Title:

Relation between the heat-induced increase of F0 fluorescence and a shift in the electronic equilibrium at the acceptor side of photosystem 2

Creator:

Ducruet, J. M.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:98e524d1-3b90-45ba-ab38-2b3227d34a32
uuid:98e524d1-3b90-45ba-ab38-2b3227d34a32
issn:0300-3604
doi:10.1023/A:1007124509748

Subject:

QA and QB sites, temperature, thermoluminescence, and Zea mays

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

F0 fluorescence and thermoluminescence (TL) were recorded simultaneously on various dark-adapted leaf samples. Above 40 °C, a sharp peak of TL coincided with the onset of the heat-induced F0 rise. It results from a back-transfer of an electron from the secondary QB- to the primary acceptor QA of photosystem 2, followed by a luminescence-emitting recombination with Tyr-D1. This demonstrates that the critical temperature at which the F0 starts rising also corresponds to a shift towards the left of the QA↔QB- equilibrium.

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

335-338

Source:

Photosynthetica | 1999 Volume:37 | Number:2

Harvested from:

CDK

Metadata only:

false