How eukaryotes came to be the overlords of the world?
- Amoeba May Offer Key Clue to Photosynthetic Evolution
(Science Daily, 2/27/2012)
The major difference between plant and animal cells is the photosynthetic process, which converts light energy into chemical energy. When light isn't available, energy is generated by breaking down carbohydrates and sugars, just as it is in animal and some bacterial cells. Two cellular organelles are responsible for these two processes: the chloroplasts for photosynthesis and the mitochondria for sugar breakdown. New research from Carnegie's Eva Nowack and Arthur Grossman has opened a window into the early stages of chloroplast evolution.
Their work is published online by the Proceedings of the National Academy of Sciences in the week of February 27-March 2.