Evaluation of visible-light wavelengths that reduce or oxidize the plastoquinone pool in green algae with the activated F0 rise method

Title:

Evaluation of visible-light wavelengths that reduce or oxidize the plastoquinone pool in green algae with the activated F0 rise method

Creator:

Mattila, H., Havurinne, V., Antal, T., and Tyystjärvi, E.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:cdb36782-d649-4e5c-a50a-1b9cb809f46e
uuid:cdb36782-d649-4e5c-a50a-1b9cb809f46e
doi:10.32615/ps.2022.049

Subject:

Chlamydomonas, chlorophyll fluorescence, far-red acclimation, FlvB protein, and Scenedesmus

Type:

model:article and TEXT

Format:

počítač and online zdroj

Description:

We recently developed a chlorophyll a fluorescence method (activated F0 rise) for estimating if a light wavelength preferably excites PSI or PSII in plants. Here, the method was tested in green microalgae: Scenedesmus quadricauda, Scenedesmus ecornis, Scenedesmus fuscus, Chlamydomonas reinhardtii, Chlorella sorokiniana, and Ettlia oleoabundans. The Scenedesmus species displayed a plant-like action spectra of F0 rise, suggesting that PSII/PSI absorption ratio is conserved from higher plants to green algae. F0 rise was weak in a strain of C. reinhardtii, C. sorokiniana, and E. oleoabundans. Interestingly, another C. reinhardtii strain exhibited a strong F0 rise. The result indicates that the same illumination can lead to different redox states of the plastoquinone pool in different algae. Flavodiiron activity enhanced the F0 rise, presumably by oxidizing the plastoquinone pool during pre-illumination. The activity of plastid terminal oxidase, in turn, diminished the F0 rise, but to a small degree.

Language:

Multiple languages

Rights:

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

Coverage:

529-538

Source:

Photosynthetica | 2022 Volume:60 | Number:4

Harvested from:

CDK

Metadata only:

false