On the quantitative relation between dark kinetics of NPQ-induced changes in variable fluorescence and the activation state of the CF0·CF1·ATPase in leaves

Title:

On the quantitative relation between dark kinetics of NPQ-induced changes in variable fluorescence and the activation state of the CF0·CF1·ATPase in leaves

Creator:

Vredenberg, W. J.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:171fcfca-21eb-4b33-9e74-dd48b9a7f791
uuid:171fcfca-21eb-4b33-9e74-dd48b9a7f791
issn:0300-3604
doi:10.1007/s11099-018-0772-1

Subject:

systémová analýza, fluorescence, kinetika, system analysis, kinetics, CF0·F1·ATPase, chlorophyll fluorescence kinetics, nonphotochemical quenching, Kautsky fluorescence induction curve, quenching mechanisms, 2, and 581

Type:

model:article and TEXT

Format:

print, bez média, and svazek

Description:

The variable fluorescence at the maximum Fm of the fluorescence induction (Kautsky) curve is known to be substantially suppressed shortly after light adaption due to nonphotochemical qE quenching. The kinetic pattern of the dark decay at Fm consists of three components with rates ~20, ~1, and ~0.1 s-1, respectively. Light adaptation has no or little effect on these rate constants. It causes a decrease in the ratio between the amplitudes of the slow and fast one with negligible change in the small amplitude of the ultra-slow component. Results add to evidence for the hypothesis that the dark-reversible decrease in variable fluorescence accompanying light adaptation during the P-S phase of the fluorescence induction curve is due to an alteration in nonphotochemical qE quenching caused by changes in the trans-thylakoid proton motive force in response to changes in the proton conductance gH+ of the CF0-channel of the CF0·CF1·ATPase., W. J. Vredenberg., and Obsahuje bibliografické odkazy

Language:

Multiple languages

Rights:

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

Coverage:

139-149

Source:

Photosynthetica | 2018 Volume:56 | Number:1

Harvested from:

CDK

Metadata only:

false