FIG. 3.
Competition between PA138 (•) and 10-day-old PA147-2lacZY (○). The aged PA147-2lacZY is fitter than the parental PA147-2lacZY, as evidenced by the increase in its competitive fitness relative to PA138.
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.