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.
Schematic diagram of sections through the central zone of the root meristem. In the sense and antisense plants treated with 1 μM DEX, the columellar initials acquire markers (starch granules) normally only observed in the daughter cells. The cortical initials also behave like a cortical daughter by dividing longitudinally to give rise to the first cells of the endodermal and cortical files.
