In certain types of plant cells, organelle DNA accounts for a substantial proportion of cellular total DNA. Thus, it is hypothesized that organelle DNA could not only serve as the genetic material but also function as a ‘nutrient reservoir’. Now, the researchers demonstrate a mechanism involved in chloroplast DNA degradation and phosphorus recycling during leaf senescence.
- Tsuneaki Takami
- Norikazu Ohnishi
- Wataru Sakamoto