Independent evolution of the thioredoxin system in photosynthetic Paulinella species
Sign Up to like & getrecommendations! Published in 2021 at "Current Biology"
DOI: 10.1016/j.cub.2021.02.029
Abstract: Redox regulation allows phytoplankton to monitor and stabilize metabolic pathways under changing conditions1. In plastids, the thioredoxin (TRX) system is linked to photosynthetic electron transport and fine tuning of metabolic pathways to fluctuating light levels.… read more here.
Keywords: system; paulinella; redox regulation; independent evolution ... See more keywords
Retrotransposition facilitated the establishment of a primary plastid in the thecate amoeba Paulinella
Sign Up to like & getrecommendations! Published in 2022 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.2121241119
Abstract: Significance Primary endosymbiosis allowed the evolution of complex life on Earth. In this process, a prokaryote was engulfed and retained in the cytoplasm of another microbe, where it developed into a new organelle (mitochondria and… read more here.
Keywords: amoeba paulinella; retrotransposition facilitated; paulinella; facilitated establishment ... See more keywords
A bipartite chromatophore transit peptide and N-terminal protein processing in the Paulinella chromatophore.
Sign Up to like & getrecommendations! Published in 2022 at "Plant physiology"
DOI: 10.1093/plphys/kiac012
Abstract: The amoeba Paulinella chromatophora contains photosynthetic organelles, termed chromatophores, that evolved independently from plastids in plants and algae. At least one-third of the chromatophore proteome consists of nucleus-encoded proteins that are imported across the chromatophore… read more here.
Keywords: processing; chromatophore transit; protein; paulinella ... See more keywords
Paulinella, a model for understanding plastid primary endosymbiosis.
Sign Up to like & getrecommendations! Published in 2020 at "Journal of phycology"
DOI: 10.1111/jpy.13003
Abstract: The uptake and conversion of a free-living cyanobacterium into a photosynthetic organelle by the single-celled Archaeplastida ancestor helped transform the biosphere from low to high oxygen. There are two documented, independent cases of plastid primary… read more here.
Keywords: plastid primary; paulinella; primary endosymbiosis; model ... See more keywords
Hypothesis: Trans‐splicing Generates Evolutionary Novelty in the Photosynthetic Amoeba Paulinella
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Phycology"
DOI: 10.1111/jpy.13247
Abstract: Plastid primary endosymbiosis has occurred twice, once in the Archaeplastida ancestor and once in the Paulinella (Rhizaria) lineage. Both events precipitated massive evolutionary changes, including the recruitment and activation of genes that are horizontally acquired… read more here.
Keywords: hypothesis trans; generates evolutionary; trans splicing; paulinella ... See more keywords