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.
A, Metabolic pathway for the synthesis of MAs, based on existing data. A dioxymugineic acid synthase gene was recently cloned from barley (Hordeum vulgare). B, Nicotianamine synthase (NAS) catalyzes S-adenosyl-Met (SAM) trimerization and ring formation to synthesize NA. Bold lines indicate the unit incorporated into NA.
