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.
Scanning electron micrographs showing the root distal segments of iron-deficient plants 5 to 10 mm from the apex (A), 0 to 5 mm from the apex (B), and iron-sufficient sugar beet plants 5 to 10 mm from the apex (C), and 0 to 5 mm from the apex (D).
