Figure 2.
Biochemical assays. (a) Nitrate reduction test. (b) Indole production test. (c) Methyl red test. (d) Citrate utilization test
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.