U.S. Geological Survey - Microbiology
Images of bacteria and other microbes related to USGS microbiology research.
Other Bacteria and Microbes
Leptothrix ochracea 1000x magnification
Research Summary: Arsenic Removal at the Lava Cap Mine Superfund site (Nevada City, CA) (Andrea L. Foster)
Description: Putative Leptothrix ochracea collected from site LL1 at Lava Cap Mine, Nevada Cty, CA. Phase-contrast light microscope image showing predominantly empty sheaths characteristic of L. ochracea superimposed on the corresponding epifluoresent image. Using a passive DNA stain, a few filaments of cells can be seen within the sheaths. The overall brown color of the sheath is due to iron (hydr)oxides.