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.
Redox cycling within the cell cycle measured as changes in the degree of oxidation occurring in the proliferating cells of the embryonic roots of germinating Arabidopsis seeds. Effects of HU on the degree of oxidation of the nuclei (A) and cytosol (B) of proliferation zone cells in roGFP2-expressing roots. Fluorescence was measured in the absence (open squares) or presence (filled squares) of HU. *p < 0.05, **p < 0.01, ***p < 0.001 and ****p < 0.0001.
