Structural and functional changes in the photosynthetic apparatus of Chlamydomonas reinhardtii during nitrogen deprivation and replenishment

Title:

Structural and functional changes in the photosynthetic apparatus of Chlamydomonas reinhardtii during nitrogen deprivation and replenishment

Creator:

Preininger, É., Kósa, A., Lőrincz, ZS., Nyitrai, P., Simon, J., Böddi, B., Keresztes, Á., and Gyurján, I.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:a767e3f5-ed9f-43da-aaa1-77c517e63892
uuid:a767e3f5-ed9f-43da-aaa1-77c517e63892
issn:0300-3604
doi:10.1007/s11099-015-0129-y

Subject:

fotosyntéza, photosynthesis, electron microscopy, nitrogen starvation, O2 evolution, 77K fluorescence, 2, and 581

Type:

model:article and TEXT

Format:

print, bez média, and svazek

Description:

Nitrogen is an essential factor for normal plant and algal development. As a component of nucleic acids, proteins, and chlorophyll (Chl) molecules, it has a crucial role in the organization of a functioning photosynthetic apparatus. Our aim was to study the effects of nitrogen starvation in cultures of the unicellular green alga, Chlamydomonas reinhardtii, maintained on nitrogen-free, and then on nitrogen-containing medium. During the three-week-long degreening process, considerable changes were observed in the Chl content, the ratio of Chl-protein complexes, and photosynthetic activity of the cultures as well as in the ultrastructure of single chloroplasts. The regreening process was much faster then the degradation; total greening of the cells occurred within four days. The rate of regeneration depended on the nitrogen content. At least 50% of the normal nitrogen content of Tris-Acetate-Phosphate (TAP) medium was required in the medium for the complete regreening of the cells and regeneration of chloroplasts., É. Preininger, A. Kósa, Z. S. Lőrincz, P. Nyitrai, J. Simon, B. Böddi, Á. Keresztes, I. Gyurján., and Obsahuje seznam literatury

Language:

Multiple languages

Rights:

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

Coverage:

369-377

Source:

Photosynthetica | 2015 Volume:53 | Number:3

Harvested from:

CDK

Metadata only:

false