Genome Sequence of "Caldinitratiruptor microaerophilus," a Unique Microaerophilic Bacterium Closely Related to Symbiobacterium.

We present the genome sequence of "Caldinitratiruptor microaerophilus" JCM16183, isolated by Fardeau et al. from a French hot spring. This microaerophilic bacterium represents a novel taxon related to the genus Symbiobacterium. The high (71%) G+C content of its 3.60-Mb circular genome supports the divergence of this bacterium from Clostridia.