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.
HY5 acts as a systemic signal that up-regulates photoprotection (NPQ) in shaded parts of a plant. High light induces HY5 and leads to its transport to the shaded leaves. Light pretreatment circumvents the reduction in Fv/Fm ratio in the fourth leaf (bottom). Adapted from Jiang et al. (2020), figures 1 and 9.
