Details for Ferroglobus placidus

Participants Studying this Organism
Thermal Features for this Organism

Ferroglobus placidus

NCBI Taxonomy ID: 54261
NCBI Taxonomy Rank: Species
Ferroglobus is related to Archaeoglobus but is not a sulfate-reducing bacterium. Instead, Ferroglobus is an iron-oxidizing chemolithotrophic autotroph, conserving energy from the oxidation of Fe2+ to Fe3+ coupled to the reduction of NO3- to NO2- plus NO. Ferroglobus can also use H2 or H2S as electron donors in its energy metabolism. Ferroglobus was isolated from a shallow marine hydrothermal vent and grows optimally 85°C. Ferroglobus is interesting for several reasons, but especially so because of its ability to produce Fe3+ from Fe2+ under anoxic conditions. The mechanism for the formation of Fe3+ in ancient rocks, previously assumed to have been from the oxidation of Fe2+ by O2 produced by cyanobacteria, is now being questioned with the discovery that anoxic routes to the production of Fe3+ exist from the activiteis of organisms like Ferroglobus and certain anoxygenic phototrphic bacteria.
Taken from the text Brock Biology of Microorganisms (10th ed.). Madigan, M.T., Martinko, J.M., and Parker, J. 2003. Prentice Hall. 460p.