Details

Autor(en) / Beteiligte

• Mehra, Himanshu S
• Wang, Xiaozhuo
• Russell, Brandon P
• Kulkarni, Nidhi
• Ferrari, Nicholas
• Larson, Brent
• Vinyard, David J

Titel

Assembly and Repair of Photosystem II in Chlamydomonas reinhardtii

Ist Teil von

• Plants (Basel), 2024-03, Vol.13 (6), p.811

Ort / Verlag

Switzerland: MDPI AG

Erscheinungsjahr

2024

Link zum Volltext

Quelle

Electronic Journals Library

Beschreibungen/Notizen

• Oxygenic photosynthetic organisms use Photosystem II (PSII) to oxidize water and reduce plastoquinone. Here, we review the mechanisms by which PSII is assembled and turned over in the model green alga . This species has been used to make key discoveries in PSII research due to its metabolic flexibility and amenability to genetic approaches. PSII subunits originate from both nuclear and chloroplastic gene products in . Nuclear-encoded PSII subunits are transported into the chloroplast and chloroplast-encoded PSII subunits are translated by a coordinated mechanism. Active PSII dimers are built from discrete reaction center complexes in a process facilitated by assembly factors. The phosphorylation of core subunits affects supercomplex formation and localization within the thylakoid network. Proteolysis primarily targets the D1 subunit, which when replaced, allows PSII to be reactivated and completes a repair cycle. While PSII has been extensively studied using as a model species, important questions remain about its assembly and repair which are presented here.