Electron Transport in Chloroplasts: Regulation and Alternative Pathways of Electron Transfer.
Biochemistry (Mosc)
; 88(10): 1438-1454, 2023 Oct.
Article
em En
| MEDLINE
| ID: mdl-38105016
ABSTRACT
This work represents an overview of electron transport regulation in chloroplasts as considered in the context of structure-function organization of photosynthetic apparatus in plants. Main focus of the article is on bifurcated oxidation of plastoquinol by the cytochrome b6f complex, which represents the rate-limiting step of electron transfer between photosystems II and I. Electron transport along the chains of non-cyclic, cyclic, and pseudocyclic electron flow, their relationships to generation of the trans-thylakoid difference in electrochemical potentials of protons in chloroplasts, and pH-dependent mechanisms of regulation of the cytochrome b6f complex are considered. Redox reactions with participation of molecular oxygen and ascorbate, alternative mediators of electron transport in chloroplasts, have also been discussed.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Citocromos b
/
Complexo Citocromos b6f
Idioma:
En
Revista:
Biochemistry (Mosc)
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Federação Russa
País de publicação:
Estados Unidos