Plant mitochondria
Plant cells respire just like animal cells and mitochondria in plant cells are the center for energy metabolism similar to their role in animal cells. However, plant mitochondria have a number of unique features, which make their metabolism much more flexible as befits organisms that have to adjust to a rapidly changing environment. These features include a more complex electron transport chain, larger and more dynamic mtDNA, RNA editing, and a larger and more dynamic proteome. A very large group of RNA-interacting modular proteins, the pentatricopeptide repeat (PPP) proteins, is responsible for mitochondrial mRNA editing at hundreds of sites. Rapid changes in mitochondrial metabolism are regulated by post-translational enzyme modifications which in turn are governed by matrix redox conditions.

Hosted by Rasmus Kock Flygaard