| Cross Index | Metallogenium |
| SuperSet | Prokaryote, Eubacteria Aerobic Chemolithotrophic Bacteria |
| Compare | Nitrifying bacteria:
Sulfur Oxidizing Acidiphilium Macromonas, Thermothrix thiopara Thiobacillus, Thiobacterium, Thiodendron latens, Thiomicrospira, Thiosphaera, Thiospira, Thiovulum majus Hydrogen Bacteria: Hydrogenbacter thermophilus Iron & Manganese bacteria: Aquaspirillum , Bilophococcus, Gallionella ferrunginea, Leptospirillum, Metallogenium, Naumanniella, Ochrobium tectum, Sulfobacillus thermosulfidooxidans, Siderocapsa, Siderococcus limoniticus |
| Contrast | Archaea |
| Subset |
| Morphology | Metallogenium |
| CELLULAR |
| Staining | |
| Morphology | Cells coccoid, 0.2-1.5 um in diameter, usually in clusters, sprouting with tapering filaments 0.2-0.02 um in diameter and 1- 10 um in length |
| Motility | Spherical buds are supposed to be motile, but the type of locomotive remains unknown |
| Specialized structures | heavily encrusted by manganese dioxide. A complicated life cycle includes cocci and cocci with tapering filaments radiating from the center and encrustated by oxides. The stage with radiating filaments is referred to as a trichosphere, microcolony, or coenobium. In this stage, "Metallogenium" is easily recognizable and identified by its peculiar morphology. Oxidizes manganous compounds. Multiplication is by a budding process. Cocci may also be found at the ends of the filaments, giving rise to daughter microcolonies around the periphery of the mother coenobium, much like the growth that occurs with strawberry plants. New coenobia are usually formed from one or several cocci sprouting by a straight filaments in liquid and irregularly bent ones in viscous media.. |
| Division |
| COLONIAL |
| Solid surface |
| Liquid |
| Growth Parameters | Metallogenium |
| PHYSIOLOGICAL |
| Tropism | Chemoorganotrophic |
| Oxygen | Aerobic |
| pH | Optimum pH: 6.8-7.2. |
| Temperature | Optimum temperature: 28`C |
| Requirements | |
| Products | |
| Enzymes | |
| Unique features | Structures indistinguishable from "Metallogenium" are recorded as microfossils from rocks more than 2 giga years old under the name of Eoastrion Barghoorn and Tyler 1967. |
| ENVIRONMENTAL |
| Habitat | Widely distributed in plankton of freshwater lakes and in the bottom deposits where it is recognized as a causative agent of ore formation, in swamps, in soils, on decaying leaves and in desert varnish It has not yet been reported in the marine environment |
| Lifestyle | may be parasitic on mycelial fungi |
| Pathogenicity |
| Distribution |
| Genome | Metallogenium |
| G+C Mol % |
| Reference | Metallogenium |
| First citation | Perfil'ev,B.V. and D.R. Gabe. 1961. Capillary methods of investigating microorgansims. Izv. Akad. Nauk S.S.S.R. (in Russian) (English translation J.M. Shewan, University of Toronto Press Toronto 1969 |
| The Prokaryotes | |
| Bergey's Systematatic | p 1986 G.A. Zavarzin |
| Bergey's Determinative | p 442 |
| References |