Chloroplast biogenesis involves spatial coordination of nuclear and organellar gene expression in Chlamydomonas.

ABSTRACT: The localization of translation can direct the polypeptide product to the proper intracellular compartment. Our results reveal translation by cytosolic ribosomes on a domain of the chloroplast envelope in the unicellular green alga Chlamydomonas (Chlamydomonas reinhardtii). We show that this envelope domain of isolated chloroplasts retains translationally active ribosomes and mRNAs encoding chloroplast proteins. This domain is aligned with localized translation by chloroplast ribosomes in the translation zone, a chloroplast compartment where photosystem subunits encoded by the plastid genome are synthesized and assembled. Roles of localized translation in directing newly synthesized subunits of photosynthesis complexes to discrete regions within the chloroplast for their assembly are sugge

SUBMITTER: Sun Y 

PROVIDER: S-EPMC11376380 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature