| ferrimicrobium acidiphilum gen. nov., sp. nov. and ferrithrix thermotolerans gen. nov., sp. nov.: heterotrophic, iron-oxidizing, extremely acidophilic actinobacteria. | two novel extremely acidophilic, iron-oxidizing actinobacteria were isolated, one from a mine site in north wales, uk (isolate t23(t)), and the other from a geothermal site in yellowstone national park, wyoming, usa (y005(t)). these new actinobacteria belong to the subclass acidimicrobidae, and in contrast to the only other classified member of the subclass (acidimicrobium ferrooxidans), both isolates were obligate heterotrophs. the mine site isolate was mesophilic and grew as small rods, while ... | 2009 | 19406797 |