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.
Yellow halos around bacterial colonies indicate siderophore production. Xv17: wild-type Xv strain; fur-m: fur mutation strain of Xv 17; and fur-c: fur complementation strain of fur-m.
