Non-radiative dissipation of absorbed excitation energy within photosynthetic apparatus of higher plants

Title:

Non-radiative dissipation of absorbed excitation energy within photosynthetic apparatus of higher plants

Creator:

Štroch, M., Špunda, V., and Kurasová, I.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:b666a991-6e29-43bf-bf64-aa8201eb98ba
uuid:b666a991-6e29-43bf-bf64-aa8201eb98ba
issn:0300-3604
doi:10.1023/B:PHOT.0000046149.97220.18

Subject:

carotenoids, non-photochemical fluorescence quenching, non-radiative dissipation, photoinhibition, photoprotection, photosynthesis, and xanthophyll cycle

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

The review deals with thermal dissipation of absorbed excitation energy within pigment-protein complexes of thylakoid membranes in higher plants. We focus on the de-excitation regulatory processes within photosystem 2 (PS2) that can be monitored as non-photochemical quenching of chlorophyll (Chl) a fluorescence consisting of three components known as energy-dependent quenching (qE), state-transition quenching (qT), and photoinhibitory quenching (qI). We summarize the role of thylakoid lumen pH, xanthophylls, and PS2 proteins in qE mechanism. Further, both the similarity between qE and qI and specific features of qI are described. The other routes of thermal energy dissipation are also mentioned, that is dissipation within photosystem 1 and dissipation through the triplet Chl pathway. The significance of the individual de-excitation processes in protection against photo-oxidative damage to the photosynthetic apparatus under excess photon supply is stretched. and M. Štroch, V. Špunda, I. Kurasová.

Language:

Multiple languages

Rights:

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

Coverage:

323-327

Source:

Photosynthetica | 2004 Volume:42 | Number:3

Harvested from:

CDK

Metadata only:

false