Figure_4.tif (2.46 MB)
Energetic Vacuolar Concentration of Nitrate by Beggiatoa Sp.
figure
posted on 2007-08-28, 01:55 authored by Marc Mußmann, Fen Z Hu, Michael Richter, Dirk de Beer, André Preisler, Bo B Jørgensen, Marcel Huntemann, Frank Oliver Glöckner, Rudolf Amann, Werner J. H Koopman, Roger S Lasken, Benjamin Janto, Justin Hogg, Paul Stoodley, Robert Boissy, Garth D Ehrlich(A) Hypothetical model of nitrate accumulation in the vacuole of Beggiatoa.
(B) Beggiatoa filament stained with the cationic, lipophilic dye rhodamine 123. Rhodamine 123 accumulated in the cytoplasm but was excluded from vacuoles, indicating the presence of an electric potential (inside positive) over this membrane.
