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.
Fur is essential for growth of E. coli O78-9 in serum. Bacterial cultures were grown as described in the legend to Fig. 1. Strain 078-9 Δfur grew in MOPS medium (continuous line) or in the presence of 40% serum (dotted line). Growth arrest due to serum exposure was restored in strain 078-9 Δfur/pBADfur (dashed line). Viability was estimated as described in the legend to Fig. 1, and the results are shown on the right. S, serum; IS, inactive serum.
