Assembly-dependent translational feedback regulation of photosynthetic proteins in land plants.

ABSTRACT: In the green alga Chlamydomonas reinhardtii, the synthesis of chloroplast-encoded photosynthetic subunits is feedback regulated by their protein complex assembly state. This regulation is known as control by epistasy of synthesis (CES) and matches subunit synthesis with requirements of complex assembly in photosystem II (PSII), the cytochrome b₆f complex (Cyt b₆f), photosystem I (PSI), ATP synthase and Rubisco. In embryophytes, CES was only described for Rubisco, raising the question of whether CES exists for components of the photosynthetic electron transport chain in land plants. Here we systematically examined land plant mutants with assembly defects in PSII, Cyt b₆f, PSI, ATP synthase, NAD(P)H dehydrogenase-like (NDH) complex and Rubisco for feedback re

SUBMITTER: Ghandour R 

PROVIDER: S-EPMC12449265 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature