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.
Growth of the S. meliloti wild-type strain Rm1021 and the fur mutant strain Rm1021Δfur under high and low iron concentrations. Overnight cultures of Rm1021 (▪) and Rm1021Δfur (▴) were washed and diluted into fresh VMM* containing 30 μM Fe(II) or no added iron sources and incubated at 30°C for 180 h. The growth was monitored by measuring the optical density at 580 nm (o.d.580). The error bars indicate the standard deviations, which were calculated from six independent experiments.
