Hydrogenophilaceae

The Hydrogenophilaceae are a family of Betaproteobacteria, with two genera. Like all Proteobacteria, they are gram-negative. "Hydrogenophilus" are thermophilic, growing around 50 °C and obtaining their energy from oxidizing hydrogen. It includes the genera "Hydrogenophilus" and "Thiobacillus" (see below for the removal of certain species).