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.
Two-dimensional imaging of the ultra-weak photon emission from the plant of Arabidopsis thaliana. The figure shows photographs (A) and the corresponding two-dimensional images of ultra-weak photon emission recorded by a highly sensitive CCD camera (B). The Arabidopsis plant was kept in the complete darkness for a period of 2h prior to the measurement. Ultra-weak photon emission imaging was measured 20 min after wounding (indicated by red circles) with an accumulation time of 20 min.
