Chloroplast proteostasis: import, sorting, ubiquitination, and proteolysis

Y Sun, RP Jarvis - Annual Review of Plant Biology, 2023 - annualreviews.org
Chloroplasts are the defining plant organelles with responsibility for photosynthesis and
other vital functions. To deliver these functions, they possess a complex proteome …

Chloroplast protein import machinery and quality control

JD Rochaix - The FEBS journal, 2022 - Wiley Online Library
Most chloroplast proteins are nucleus‐encoded, translated on cytoplasmic ribosomes as
precursor proteins, and imported into chloroplasts through TOC and TIC, the translocons of …

Architecture of chloroplast TOC–TIC translocon supercomplex

H Liu, A Li, JD Rochaix, Z Liu - Nature, 2023 - nature.com
Chloroplasts rely on the translocon complexes in the outer and inner envelope membranes
(the TOC and TIC complexes, respectively) to import thousands of different nuclear-encoded …

[HTML][HTML] Structure of a TOC-TIC supercomplex spanning two chloroplast envelope membranes

Z **, L Wan, Y Zhang, X Li, Y Cao, H Liu, S Fan, D Cao… - Cell, 2022 - cell.com
The TOC and TIC complexes are essential translocons that facilitate the import of the
nuclear genome-encoded preproteins across the two envelope membranes of chloroplast …

Comparative proteomics in tall fescue to reveal underlying mechanisms for improving Photosystem II thermotolerance during heat stress memory

G Wang, X Wang, D Li, X Yang, T Hu, J Fu - BMC genomics, 2024 - Springer
Background The escalating impacts of global warming intensify the detrimental effects of
heat stress on crop growth and yield. Among the earliest and most vulnerable sites of …

The plastid-encoded protein Orf2971 is required for protein translocation and chloroplast quality control

J **ng, J Pan, H Yi, K Lv, Q Gan, M Wang, H Ge… - The Plant …, 2022 - academic.oup.com
Photosynthesis and the biosynthesis of many important metabolites occur in chloroplasts. In
these semi-autonomous organelles, the chloroplast genome encodes approximately 100 …

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

Y Sun, S Bakhtiari, M Valente-Paterno, Y Wu… - Plant …, 2024 - academic.oup.com
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 …

The journey of preproteins across the chloroplast membrane systems

G Ballabani, M Forough, F Kessler… - Frontiers in …, 2023 - frontiersin.org
The photosynthetic capacity of chloroplasts is vital for autotrophic growth in algae and
plants. The origin of the chloroplast has been explained by the endosymbiotic theory that …

Engineered accumulation of bicarbonate in plant chloroplasts: known knowns and known unknowns

S Rottet, B Förster, WY Hee, LM Rourke… - Frontiers in Plant …, 2021 - frontiersin.org
Heterologous synthesis of a biophysical CO2-concentrating mechanism (CCM) in plant
chloroplasts offers significant potential to improve the photosynthetic efficiency of C3 plants …

Overexpression of the plastidial pseudo‐protease AtFtsHi3 enhances drought tolerance while sustaining plant growth

LS Mishra, SD Cook, S Kushwah… - Physiologia …, 2024 - Wiley Online Library
With climate change, droughts are expected to be more frequent and severe, severely
impacting plant biomass and quality. Here, we show that overexpressing the Arabidopsis …