Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Pictorial representations of photosynthetic-electron-transport changes and feedback mechanisms responsible for low P availability. Processes that appear to be down-regulated are indicated by red arrows, while green arrows indicate processes that appear to be up-regulated. Unit size and font size represent the activities of the organelle components.
