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.
DHAR-OX plants maintain a higher foliar level of GSH following exposure to an acute episode of ozone. The levels of GSH and GSSG were measured from the first fully expanded leaf of control (C), DHAR-OX (OX), and DHAR-KD (KD) tobacco collected prior to, immediately after, and 24 h following a 2-h exposure to 200 ppb ozone. The GSH redox state determined by [GSH]/[GSSG] is also shown.
