in vivo view of the chemoheterotrophic bacterium Spirillum volutans (EHRENBERG,1832). Tufts of flagella (F) occur at both poles. The species name derives from the term "volutin" or metachromatic granules composed of polyphosphates.However, the granules (PHB) of S. volutans are,in fact,composed of the energy reserve compound,poly-β-hydroxybutyrate and do not contain polyphosphates.Collected from a putifying raw culture from a freshwater pond near Boise,Idaho.DIC.
in vivo view of the chemoheterotrophic bacterium Spirillum volutans (EHRENBERG,1832). Tufts of flagella occur at both poles. The species name derives from the term "volutin" or metachromatic granules composed of polyphosphates.However, the granules of S. volutans are,in fact,composed of the energy reserve compound,poly-β-hydroxybutyrate and do not contain polyphosphates.Collected from a putifying raw culture from a freshwater pond near Boise,Idaho.Phase contrast.
Spirillum (spire-ill-um), a motile bacterium, twisted body form, with (polar) flagella at both ends of the cell. Don t believe any microscopists who pontificate that you cannot see bacterial flagella with the light microscope. Phase contrast.
Motile spiral bacterium. No flagella are evident. Bacteria with this shape are often found in sediments and in gelatinous environments. Phase contrast micrograph.
Description: Cells of a marine spirillum bacteria stained with Cyber Green and viewed at 1,000x magnification under a light microscope. If you use this image on your website/blog please give credit by linking to www.biology101.org. Date: 25 September 2006, 11:22. Source: Spirillum Bacteria. Author: Anthony D'Onofrio.