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.
Phylogenetic tree showing the relationship of 16S rDNA sequences cloned from the superstratum sample compared with previously described bacterium species rDNA sequences deposited in public databases. Synechococcus sp. WH 8109[AY172836] as outgroup.
