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.
Heat map of the average ratio of 16S rRNA to rRNA genes for bacterial classes in the reference (Ref), upgradient (Up), and PRB sites. A significant result indicates that that class expressed significantly more (black asterisks) or significantly less (white asterisks) 16S rRNA relative to 16S rRNA genes. *, P < 0.05; **, P < 0.005.
